Sample records for sport-related positive reinforcement
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Sports Participation and Alcohol Use: Associations With Sports-Related Identities and Well-Being.
Zhou, Jin; Heim, Derek; Levy, Andrew
2016-01-01
Studies indicate that those participating in sports are a high-risk population for hazardous alcohol use. Previous research identifies psychosocial drivers underpinning this link between sports participation and risky drinking behavior; however, the evidence is restricted to cross-sectional prevalence studies. Theoretical evaluations suggest that psychologically constructed identities are a defining factor for behaviors in this context. Therefore, the present study sought to examine longitudinally the relationships among sports-related identities, well-being, and alcohol behaviors in those participating in sports. Respondents completed self-report questionnaires on their alcohol consumption, drinking motives, athlete identity (personal identity), sports group identification (social identity), and general well-being. A sample of 475 participants (male = 55.6%; mean age = 20.2 years) provided data at Time 1 for cross-sectional analysis. Longitudinal associations were conducted with 92 participants (male = 42.4%; mean age = 20.8 years) who provided follow-up data (Time 1 and 6 months later). Cross-sectional results revealed an association between social identity and alcohol consumption, which was fully mediated by positive reinforcement drinking motives. Correlation analysis found a significant positive relationship between Time 1 alcohol consumption and social identity 6 months later. Furthermore, social identity was positively associated with consumption, whereas athlete identity was negatively associated therewith. Finally, well-being was positively associated only with sports group identification over time. Our findings suggest that sport-related drinking may be an avenue for building group identification, and this identification is linked to well-being.
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Sports Dietitians Australia position statement: sports nutrition for the adolescent athlete.
Desbrow, Ben; McCormack, Joanna; Burke, Louise M; Cox, Gregory R; Fallon, Kieran; Hislop, Matthew; Logan, Ruth; Marino, Nello; Sawyer, Susan M; Shaw, Greg; Star, Anita; Vidgen, Helen; Leveritt, Michael
2014-10-01
It is the position of Sports Dietitians Australia (SDA) that adolescent athletes have unique nutritional requirements as a consequence of undertaking daily training and competition in addition to the demands of growth and development. As such, SDA established an expert multidisciplinary panel to undertake an independent review of the relevant scientific evidence and consulted with its professional members to develop sports nutrition recommendations for active and competitive adolescent athletes. The position of SDA is that dietary education and recommendations for these adolescent athletes should reinforce eating for long term health. More specifically, the adolescent athlete should be encouraged to moderate eating patterns to reflect daily exercise demands and provide a regular spread of high quality carbohydrate and protein sources over the day, especially in the period immediately after training. SDA recommends that consideration also be given to the dietary calcium, Vitamin D and iron intake of adolescent athletes due to the elevated risk of deficiency of these nutrients. To maintain optimal hydration, adolescent athletes should have access to fluids that are clean, cool and supplied in sufficient quantities before, during and after participation in sport. Finally, it is the position of SDA that nutrient needs should be met by core foods rather than supplements, as the recommendation of dietary supplements to developing athletes over-emphasizes their ability to manipulate performance in comparison with other training and dietary strategies.
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Chronotype, sport participation, and positive personality-trait-like individual differences.
Laborde, Sylvain; Guillén, Félix; Dosseville, Fabrice; Allen, Mark S
2015-01-01
Chronotype and sport participation have been found to relate to positive personality-trait-like individual differences (PTLID). To date, research has focused exclusively on the morningness-eveningness dimension of chronotype, and little is known about the relationship between chronotype and various characteristics of sport participation (e.g. training time). This investigation had three primary objectives: (1) to extend the current evidence base by exploring how sport participation and PTLID relate to chronotype amplitude, (2) to explore how chronotype (morningness-eveningness and amplitude) relates to various characteristics of sport training and competition, and (3) to explore the independent and interrelated contribution of sport participation and chronotype to PTLID. The sample included 976 non-athletes (493 women and 483 men) and 974 athletes (478 women and 496 men). Participants completed a battery of questionnaires targeting sport participation characteristics, six positive PTLID (hope, optimism, perseverance, resilience, self-efficacy and trait emotional intelligence) and chronotype dimensions. Results showed that morningness-eveningness was negatively related to positive PTLID but was unrelated to sport participation. Greater diurnal fluctuations (amplitude dimension) were associated with lower positive PTLID values, lower sport participation, and shorter training durations. Positive PTLID were also associated with better sleep quality and a shorter sleep duration. Chronotype (morningness-eveningness and amplitude) and sport participation had independent associations with PTLID. These findings suggest that changes in sport participation and activity times might be a useful approach to developing positive PTLID.
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CLASSICAL MEDIA RELATIONS AND NEW MEDIA RELATIONS IN SPORT
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Alexandru Lucian MIHAI
2014-06-01
Full Text Available Media relations in sport mean maintenance of networks and positive relationships with people in the media to obtain positive media exposure for a sport product (informal and formal information sessions with media representatives. Because of the pervasive influence the media has on marketing success, sport marketers must make concerted efforts to create a positive relationship between their sport event and the media. They may accomplish this by providing the media with press releases, having news conferences, having media-day events (in which the media are invited to interact with the players, coaches, and administrators, providing media guides for the respective sport events and so on. Each of these activities promotes active involvement from the media, which will subsequently contribute to relationship building with the community.
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Local Positioning Systems in (Game) Sports
Leser, Roland; Baca, Arnold; Ogris, Georg
2011-01-01
Position data of players and athletes are widely used in sports performance analysis for measuring the amounts of physical activities as well as for tactical assessments in game sports. However, positioning sensing systems are applied in sports as tools to gain objective information of sports behavior rather than as components of intelligent spaces (IS). The paper outlines the idea of IS for the sports context with special focus to game sports and how intelligent sports feedback systems can benefit from IS. Henceforth, the most common location sensing techniques used in sports and their practical application are reviewed, as location is among the most important enabling techniques for IS. Furthermore, the article exemplifies the idea of IS in sports on two applications. PMID:22163725
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Piazza, Cathleen C; Patel, Meeta R; Gulotta, Charles S; Sevin, Bari M; Layer, Stacy A
2003-01-01
We compared the effects of positive reinforcement alone, escape extinction alone, and positive reinforcement with escape extinction in the treatment of the food and fluid refusal of 4 children who had been diagnosed with a pediatric feeding disorder. Consumption did not increase when positive reinforcement was implemented alone. By contrast, consumption increased for all participants when escape extinction was implemented, independent of the presence or absence of positive reinforcement. However, the addition of positive reinforcement to escape extinction was associated with beneficial effects (e.g., greater decreases in negative vocalizations and inappropriate behavior) for some participants.
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Piazza, Cathleen C; Patel, Meeta R; Gulotta, Charles S; Sevin, Bari M; Layer, Stacy A
2003-01-01
We compared the effects of positive reinforcement alone, escape extinction alone, and positive reinforcement with escape extinction in the treatment of the food and fluid refusal of 4 children who had been diagnosed with a pediatric feeding disorder. Consumption did not increase when positive reinforcement was implemented alone. By contrast, consumption increased for all participants when escape extinction was implemented, independent of the presence or absence of positive reinforcement. Howe...
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The positioning of federate sports in Portugal: handball, basketball, roller hockey and volleyball
Gonçalves, Celina; Correia, Abel
2005-01-01
Sport is constituted by a multiplicity of activities with different purposes, concepts and cultural representations. Before the increase of supply, Sports Federations need to understand the practitioners in relation to the several possibilities of practice and to position their sports according to their competitors. In this context, the purpose of this study is the positioning of team federate sports (handball, basketball, roller hockey and volleyball). According to Lindon et al.,...
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From Positive Reinforcement to Positive Behaviors: An Everyday Guide for the Practitioner
Sigler, Ellen A.; Aamidor, Shirley
2005-01-01
There are various opinions concerning the value of positive reinforcement when discussing modifying behaviors of young children. In some cases, individuals considered positive reinforcement difficult to implement and, in extreme cases, even felt it to be detrimental. Educators often use praise interchangeably with positive reinforcement when…
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Equivalence relations and the reinforcement contingency.
Sidman, M
2000-07-01
Where do equivalence relations come from? One possible answer is that they arise directly from the reinforcement contingency. That is to say, a reinforcement contingency produces two types of outcome: (a) 2-, 3-, 4-, 5-, or n-term units of analysis that are known, respectively, as operant reinforcement, simple discrimination, conditional discrimination, second-order conditional discrimination, and so on; and (b) equivalence relations that consist of ordered pairs of all positive elements that participate in the contingency. This conception of the origin of equivalence relations leads to a number of new and verifiable ways of conceptualizing equivalence relations and, more generally, the stimulus control of operant behavior. The theory is also capable of experimental disproof.
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Jéssica Natuline Ianof
Full Text Available ABSTRACT Traumatic brain injury (TBI is a major cause of lifelong disability and death worldwide. Sport-related traumatic brain injury is an important public health concern. The purpose of this review was to highlight the importance of sport-related concussions. Concussion refers to a transient alteration in consciousness induced by external biomechanical forces transmitted directly or indirectly to the brain. It is a common, although most likely underreported, condition. Contact sports such as American football, rugby, soccer, boxing, basketball and hockey are associated with a relatively high prevalence of concussion. Various factors may be associated with a greater risk of sport-related concussion, such as age, sex, sport played, level of sport played and equipment used. Physical complaints (headache, fatigue, dizziness, behavioral changes (depression, anxiety, irritability and cognitive impairment are very common after a concussion. The risk of premature return to activities includes the prolongation of post-concussive symptoms and increased risk of concussion recurrence.
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Echemendia, Ruben J; Iverson, Grant L; McCrea, Michael; Broshek, Donna K; Gioia, Gerard A; Sautter, Scott W; Macciocchi, Stephen N; Barr, William B
2011-11-01
Over the past 20 years, clinical neuropsychologists have been at the forefront of both scientific and clinical initiatives aimed at developing evidence-based approaches to the evaluation and management of sport-related concussion. These efforts have directly impacted current policy on strategies for injury assessment and return-to-play by athletes after concussion. Many states are considering legislation requiring (a) education of athletes, parents, coaches, and school/organization officials on the recognition, evaluation, and management of sport-related concussions; (b) removal from play of any youth athlete that is suspected of having sustained a concussion; and (c) not allowing the student to return to participation until the student is evaluated and cleared for return to participation in writing by an appropriate healthcare professional. It is the official position of the American Academy of Clinical Neuropsychology (AACN), American Board of Neuropsychology (ABN), Division 40 (Neuropsychology) of the American Psychological Association (APA), and the National Academy of Neuropsychology (NAN) that neuropsychologists should be included among the licensed health care professionals authorized to evaluate, clinically manage, and provide return to play clearance for athletes who sustain a sport-related concussion.
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Sport-related anxiety: current insights
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Ford JL
2017-10-01
Full Text Available Jessica L Ford, Kenneth Ildefonso, Megan L Jones, Monna Arvinen-Barrow Department of Kinesiology, Integrative Health Care & Performance Unit, University of Wisconsin-Milwaukee, Milwaukee, WI, USA Abstract: To date, much research has been devoted to understanding how anxiety can affect sport performance, both in practice and in competitive settings. It is well known that sport has the potential for high levels of stress and anxiety, and that practicing and employing a range of psychological strategies can be beneficial in anxiety management. Equally, growing evidence also suggests that anxiety can play a role in sport injury prevention, occurrence, rehabilitation, and the return to sport process. The purpose of this paper is to provide current insights into sport-related anxiety. More specifically, it will provide the reader with definitions and theoretical conceptualizations of sport-related anxiety. This will be followed by making a case for considering the term "performance" to be broader than activities associated with sport-related performance in practice and competition, by including performance activities associated with sport injury prevention, rehabilitation, and the return to sport process. The paper will then highlight the importance of recognizing early signs and symptoms of anxiety, and the potential need for referral. Finally, the conclusions will emphasize the need for appropriate, client-specific, and practitioner competent care for athletes experiencing sport-related anxiety. Keywords: anxiety, sport, performance, injury, sport medicine professional, sport psychology, mental health
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Positive Pedagogy for Sport Coaching
Light, Richard L.; Harvey, Stephen
2017-01-01
The literature suggests that, despite some challenges in their implementation, player/athlete-centred, inquiry-based approaches to teaching games and coaching team sport can improve game playing ability, increase player/athlete motivation and provide positive affective experiences of learning. A range of these approaches, including Teaching Games…
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Oliveira, Emileane C; Hunziker, Maria Helena
2014-07-01
In this study, we investigated whether (a) animals demonstrating the learned helplessness effect during an escape contingency also show learning deficits under positive reinforcement contingencies involving stimulus control and (b) the exposure to positive reinforcement contingencies eliminates the learned helplessness effect under an escape contingency. Rats were initially exposed to controllable (C), uncontrollable (U) or no (N) shocks. After 24h, they were exposed to 60 escapable shocks delivered in a shuttlebox. In the following phase, we selected from each group the four subjects that presented the most typical group pattern: no escape learning (learned helplessness effect) in Group U and escape learning in Groups C and N. All subjects were then exposed to two phases, the (1) positive reinforcement for lever pressing under a multiple FR/Extinction schedule and (2) a re-test under negative reinforcement (escape). A fourth group (n=4) was exposed only to the positive reinforcement sessions. All subjects showed discrimination learning under multiple schedule. In the escape re-test, the learned helplessness effect was maintained for three of the animals in Group U. These results suggest that the learned helplessness effect did not extend to discriminative behavior that is positively reinforced and that the learned helplessness effect did not revert for most subjects after exposure to positive reinforcement. We discuss some theoretical implications as related to learned helplessness as an effect restricted to aversive contingencies and to the absence of reversion after positive reinforcement. This article is part of a Special Issue entitled: insert SI title. Copyright © 2014. Published by Elsevier B.V.
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Drane, Catherine F.; Barber, Bonnie L.
2016-01-01
Sport is a context that provides positive developmental benefits to adolescents. However, these benefits are not distributed equally to all participants. This study examined whether the motivational constructs of attainment value and ability self-concept were related to positive developmental experiences in sport, and tested intensity of…
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Wiegand, Douglas M.; Geller, E. Scott
2005-01-01
Positive psychology is becoming established as a reputable sub-discipline in psychology despite having neglected the role of positive reinforcement in enhancing quality of life. The authors discuss the relevance of positive reinforcement for positive psychology, with implications for broadening the content of organizational behavior management.…
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Directory of Open Access Journals (Sweden)
Alexandru Lucian MIHAI
2013-10-01
Full Text Available In sport marketing, the word promotion covers a range of interrelated activities. All of these activities are designed to attract attention, stimulate the interest and awareness of consumers, and of course, encourage them to purchase a sport product. Promotion is about communicating with and educating consumers. The purpose of a sport promotional strategy is to build brand loyalty and product credibility, develop image, and position the brand. A promotional strategy is similar to a marketing strategy, but the promotional strategy seeks short-term objectives, both direct and indirect. Promotional objectives usually include increased sales, stimulate impulse buying, raise customer traffic, and present and reinforce image. It also provides information about products and services, publicizes new stores or websites, and creates and enhances customer satisfaction.
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Parental Positive Reinforcement with Deviant Children: Does It Make a Difference?
Forehand, Rex
1986-01-01
Considers effectiveness of parental positive reinforcement with deviant children by reviewing the following: (1) non-intervention studies, (2) intervention studies, and (3) consumer (parental) satisfaction studies. Results indicate that parents view positive reinforcement as effective and useful although positive reinforcement is not sufficient to…
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Maïano, Christophe; Morin, Alexandre J S; Lanfranchi, Marie-Christine; Therme, Pierre
2015-07-01
Motives underlying sport and exercise involvement have recently been hypothesized as potential factors influencing the positive association between sports/exercises involvement and disturbed eating attitudes and behaviours (DEAB) among adolescents. Nevertheless, very few studies have examined this hypothesis or the moderating role of gender, context of practice, performance levels and sport type on these relationships. In this study, these questions were addressed among 168 male and 167 female French adolescents involved in various types, contexts and performance levels of sport and exercise. Participants were asked to indicate their main motives for involvement in sport practice and to self-report DEAB (generic DEAB, vomiting-purging behaviours, and eating-related control) on a French adaptation of the Eating Attitudes Test-26. The results shared positive associations between body-related sport and exercise motives and most of the DEAB subscales. Furthermore, they show that the relationship between body-related sport and exercise motives and Vomiting-Purging Behaviours differs according to involvement in individual and competitive sports and exercises. Copyright ©2015 John Wiley & Sons, Ltd and Eating Disorders Association.
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Elkington, Lisa J; Hughes, David C
2017-01-16
Sport-related concussion is a growing health concern in Australia. Public concern is focused on the incidence and potential long term consequences of concussion. Children may be more prone to concussion and take longer to recover. The Australian Institute of Sport and the Australian Medical Association have collaborated to present the most contemporary evidence-based information in a format appropriate for all stakeholders. This position statement aims to ensure that participant safety and welfare is paramount when dealing with concussion in sport.First aid principles apply in the management of the athlete with suspected concussion, including protection of the cervical spine. Tools exist for use by members of the community, allowing identification of key symptoms and signs that raise the suspicion of concussion. Medical professionals should use the Sport Concussion Assessment Tool 3, in conjunction with clinical assessment for the diagnosis of concussion. Clinical assessment includes mechanism of injury, symptoms and signs, cognitive functioning, and neurological assessment including balance testing. In any situation where concussion is suspected, the athlete must be immediately removed from sport and not be allowed to return to activity until they have been assessed by a medical practitioner. "If in doubt, sit them out."A diagnosis of concussion requires immediate physical and cognitive rest, followed by a structured, graduated return to physical activity. Children require a longer period of recovery from concussion. Algorithms are provided for use by medical and non-medically trained stakeholders in the recognition and management of concussion.
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Wheel running decreases the positive reinforcing effects of heroin.
Smith, Mark A; Pitts, Elizabeth G
2012-01-01
The purpose of this study was to examine the effects of voluntary wheel running on the positive reinforcing effects of heroin in rats with an established history of drug self-administration. Rats were assigned to sedentary (no wheel) and exercise (wheel) conditions and trained to self-administer cocaine under positive reinforcement contingencies. Rats acquiring cocaine self-administration were then tested with various doses of heroin during daily test sessions. Sedentary rats self-administered more heroin than exercising rats, and this effect was greatest at low and moderate doses of heroin. These data suggest that voluntary wheel running decreases the positive reinforcing effects of heroin.
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Impact of Sport-related Games on High School Students’ Communication Skills
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Ozturk Ozden Tepekoylu
2015-09-01
Full Text Available In Recent studies underline the fact that adolescents are, at many times, likely to experience serious communication problems with their families and close environments. So, the aim of this study is to determine positive impact of sport-related games, which are performed as extracurricular activities, on high school students’ communication skills. In the study, pre, & post-tests was utilized with the control group’s experimental patterns. Two participant groups were made up of totally 30 high school students, 15 of whom would be in the experimental group and the rest of whom were in the control group. The former group was given sport- related 20 applications for 10 weeks during which the latter group would not deal with any extracurricular activities. Meanwhile, before and after the applications, data was collected by means of “The Communication Skills Scale” which was developed by Korkut (1996 and then analysed through “two-way ANCOVA” test techniques. Results clarify that the considerable gap in scores of the students’ pre, & post-tests perception concerning their communication skills are clearly attributed to sport-related games and it was also established that scores of the students in the experimental group were meaningfully higher than ones in the control group. However, perception of communication skills in the both groups was not significantly different by sex of the students. Moreover, the common effect of sex and participation on sport- related games was not found statistically meaningful in terms of communication skills. Consequently, it could be said that sport-related games impact positively communication skills.
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Sports-related concussions - media, science and policy.
Mannix, Rebekah; Meehan, William P; Pascual-Leone, Alvaro
2016-08-01
Although growing awareness about the potential long-term deleterious effects of sport-related concussion has led to increased attention to the risks of collision sports, calls to ban these sports, such as American football, might be premature. Collision sports have a relatively high incidence of concussions, but participation in these sports also confers a host of benefits. In addition, the associated risks of participation, including concussion, have not been definitively shown to outweigh the benefits they provide, and the risk-benefit ratio might vary among individuals. The risks of concussion and repetitive concussions associated with collision sports are unknown in the general population and not well characterized even in elite athlete populations. In this article, we discuss current knowledge on sports-related concussion, its neurological consequences, and implications for regulation of the practice of collision sports.
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Aerobic exercise decreases the positive-reinforcing effects of cocaine.
Smith, Mark A; Schmidt, Karl T; Iordanou, Jordan C; Mustroph, Martina L
2008-11-01
Aerobic exercise can serve as an alternative, non-drug reinforcer in laboratory animals and has been recommended as a potential intervention for substance abusing populations. Unfortunately, relatively little empirical data have been collected that specifically address the possible protective effects of voluntary, long-term exercise on measures of drug self-administration. The purpose of the present study was to examine the effects of chronic exercise on sensitivity to the positive-reinforcing effects of cocaine in the drug self-administration procedure. Female rats were obtained at weaning and immediately divided into two groups. Sedentary rats were housed individually in standard laboratory cages that permitted no exercise beyond normal cage ambulation; exercising rats were housed individually in modified cages equipped with a running wheel. After 6 weeks under these conditions, rats were surgically implanted with venous catheters and trained to self-administer cocaine on a fixed-ratio schedule of reinforcement. Once self-administration was acquired, cocaine was made available on a progressive ratio schedule and breakpoints were obtained for various doses of cocaine. Sedentary and exercising rats did not differ in the time to acquire cocaine self-administration or responding on the fixed-ratio schedule of reinforcement. However, on the progressive ratio schedule, breakpoints were significantly lower in exercising rats than sedentary rats when responding was maintained by both low (0.3mg/kg/infusion) and high (1.0mg/kg/infusion) doses of cocaine. In exercising rats, greater exercise output prior to catheter implantation was associated with lower breakpoints at the high dose of cocaine. These data indicate that chronic exercise decreases the positive-reinforcing effects of cocaine and support the possibility that exercise may be an effective intervention in drug abuse prevention and treatment programs.
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Positive youth development and observed athlete behavior in recreational sport.
Vierimaa, Matthew; Bruner, Mark W; Côté, Jean
2018-01-01
Competence, confidence, connection, and character are regarded as outcomes of positive youth development (PYD) in sport. However, the specific athlete behaviors associated with different PYD profiles are not well understood. Thus, the purpose of this study was to investigate the relationship between athletes' observed behavior during sport competitions and their perceptions of PYD outcomes. Cross-sectional study with systematic behavioral observation. Sixty-seven youth athletes were observed during basketball games near the end of their season, and the content of their behavior was systematically coded. Athletes also completed measures of the 4 Cs (competence, confidence connection, and character). A person-centered analysis approach was used to examine the relationship between PYD profiles and observed behavior. A cluster analysis identified two homogenous groups of athletes characterized by relatively high and low perceptions of confidence, connection, and character. A MANCOVA revealed that after controlling for gender and years of playing experience, the high Cs group engaged in more frequent sport communication with their coaches. Results re-affirm the critical role that coaches play in the developmental experiences of young athletes, and highlight the importance of contextual factors of the youth sport environment.
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Positive youth development and observed athlete behavior in recreational sport.
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Matthew Vierimaa
Full Text Available Competence, confidence, connection, and character are regarded as outcomes of positive youth development (PYD in sport. However, the specific athlete behaviors associated with different PYD profiles are not well understood. Thus, the purpose of this study was to investigate the relationship between athletes' observed behavior during sport competitions and their perceptions of PYD outcomes.Cross-sectional study with systematic behavioral observation.Sixty-seven youth athletes were observed during basketball games near the end of their season, and the content of their behavior was systematically coded. Athletes also completed measures of the 4 Cs (competence, confidence connection, and character. A person-centered analysis approach was used to examine the relationship between PYD profiles and observed behavior.A cluster analysis identified two homogenous groups of athletes characterized by relatively high and low perceptions of confidence, connection, and character. A MANCOVA revealed that after controlling for gender and years of playing experience, the high Cs group engaged in more frequent sport communication with their coaches.Results re-affirm the critical role that coaches play in the developmental experiences of young athletes, and highlight the importance of contextual factors of the youth sport environment.
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Tsushima, William T; Siu, Andrea M; Ahn, Hyeong Jun; Chang, Bolin L; Murata, Nathan M
2018-03-15
This study was designed to determine concussion incidence, risk, and relative risk among middle and high school athletes participating in various sports. Data were retrospectively obtained from 10,334 athletes of 12 different sports in Hawaii. In addition to determining the overall concussion incidence, comparisons of incidence, risk, and relative risk were made according to age, sex, concussion history, sport, and football position. The overall incidence of concussion among youth athletes was 1,250 (12.1%). The relative risk for a concussion was almost two times greater in 18-year olds than in 13-year-old athletes. In comparable sports, girls had a 1.5 times higher concussion risk than boys. Athletes with a prior concussion had 3-5 times greater risk to sustain a concussion than those with no history of a concussion. Among varied sports, wrestling and martial arts had the highest relative risk of a concussion, followed by cheerleading, football, and track and field. No differences in concussion risks were found among the football players in different positions. Older youths, females, those with a history of concussion, and those participating in high contact sports were found to have higher risks of sustaining a concussion. The findings increase awareness of concussion patterns in young athletes and raise concerns regarding protective strategies and concussion management in youth sports.
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Positive Youth Development from Sport to Life: Explicit or Implicit Transfer?
Turnnidge, Jennifer; Côté, Jean; Hancock, David J.
2014-01-01
While previous studies indicate that participation in sport has the potential to facilitate positive developmental outcomes, there is a lack of consensus regarding the possible transfer of these outcomes to other environments (i.e., school or work). An important issue within the positive development literature concerns how sport programs should…
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Gabor, Anne M; Fritz, Jennifer N; Roath, Christopher T; Rothe, Brittany R; Gourley, Denise A
2016-06-01
Social validity of behavioral interventions typically is assessed with indirect methods or by determining preferences of the individuals who receive treatment, and direct observation of caregiver preference rarely is described. In this study, preferences of 5 caregivers were determined via a concurrent-chains procedure. Caregivers were neurotypical, and children had been diagnosed with developmental disabilities and engaged in problem behavior maintained by positive reinforcement. Caregivers were taught to implement noncontingent reinforcement (NCR), differential reinforcement of alternative behavior (DRA), and differential reinforcement of other behavior (DRO), and the caregivers selected interventions to implement during sessions with the child after they had demonstrated proficiency in implementing the interventions. Three caregivers preferred DRA, 1 caregiver preferred differential reinforcement procedures, and 1 caregiver did not exhibit a preference. Direct observation of implementation in concurrent-chains procedures may allow the identification of interventions that are implemented with sufficient integrity and preferred by caregivers. © 2016 Society for the Experimental Analysis of Behavior.
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Sport Physiology Research and Governing Gender in Sport--A Power-Knowledge Relation?
Larsson, Hakan
2013-01-01
This article sets out to show how physiological knowledge about sex/gender relates to power issues within sport. The sport physiology research at the Swedish School of Sport and Health Sciences (Swedish acronym: GIH) during the twentieth century is analysed in relation to the political rationality concerning gender at GIH and within the Swedish…
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Game-specific characteristics of sport-related concussions.
Helmich, Ingo
2018-01-01
Concussions are common incidences in sports. However, game-specific characteristics such as tactics, field positions, etc. might positively/negatively contribute to the occurrence of mild traumatic brain injuries (mTBI) in various sports such as soccer, volleyball, handball, or basketball. Thus, the intention of this study was to analyze game-specific characteristics of concussive incidents in active players from the perspective of different sportive disciplines. Four sport-specific questionnaires for soccer, handball, volleyball and basketball were established using an online survey tool. A total of 3001 participants completed the questionnaires. 18% of the participants answered that they had experienced a concussion which significantly differed depending on the sport practiced (χ2(3)=56.868, Pconcussions on the amateur level, volleyball players experienced most on the professional level and basketball players during leisure play (χ2(9)=112.667, Pconcussions by a collision with another player, volleyball players instead experienced most concussions by hits from the ball (χ2(6)=211.260, Pconcussive incidences (χ2(7)=19.638, Pconcussions (χ2(6)=13.617, Pconcussions are sport-specific and particularly concern amateurs. This indicates that most concussions in ball games appear in situations, where medical care units are not necessarily present. Preventive measures should therefore especially address amateurs in ball sports.
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Vlahovich, Nicole; Fricker, Peter A; Brown, Matthew A; Hughes, David
2016-01-01
As Australia's peak high-performance sport agency, the Australian Institute of Sport (AIS) has developed this position statement to address the implications of recent advances in the field of genetics and the ramifications for the health and well-being of athletes. Genetic testing has proven of value in the practice of clinical medicine. There are, however, currently no scientific grounds for the use of genetic testing for athletic performance improvement, sport selection or talent identifica...
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Lanfranchi, Marie-Christine; Maïano, Christophe; Morin, Alexandre J S; Therme, Pierre
2015-02-01
The involvement of adolescents presenting high levels of social physique anxiety (SPA) in sport practice has been hypothesized as potentially problematic in terms of being associated with disturbed eating attitudes and behaviors (DEAB). Indeed, sport practice itself has been reported to be associated with higher levels of SPA and DEAB, and sport settings may sometimes promote unhealthy life habits. Nevertheless, current studies are few and present several limitations. The objective of the present study was to examine these relationships among adolescents involved or not in various types (i.e., leanness and individual) and contexts (i.e., organized and competitive) of sport practice. The sample included 766 French adolescents (337 boys and 429 girls), aged between 11 and 18 years, involved (n = 335) or not (n = 431) in sport practice. SPA and DEAB were assessed using French adaptations of the SPA scale and the Eating Attitudes Test-26. The results reveal a significant and positive association between SPA and the DEAB scales. Furthermore, they show a positive relationship between SPA and (a) vomiting-purging behaviors in adolescents involved in individual sports and (b) generic DEAB (i.e., a subscale covering fear of getting fat, food preoccupation, and eating-related guilt), particularly in adolescents involved in individual sports. The relationship between SPA and DEAB does not differ according to adolescents' involvement in sport practice or according to their involvement in organized, competitive, or leanness sport practice more specifically. However, higher levels of SPA and DEAB were observed in adolescents involved in individual sports.
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Global positioning systems (GPS) and microtechnology sensors in team sports: a systematic review.
Cummins, Cloe; Orr, Rhonda; O'Connor, Helen; West, Cameron
2013-10-01
Use of Global positioning system (GPS) technology in team sport permits measurement of player position, velocity, and movement patterns. GPS provides scope for better understanding of the specific and positional physiological demands of team sport and can be used to design training programs that adequately prepare athletes for competition with the aim of optimizing on-field performance. The objective of this study was to conduct a systematic review of the depth and scope of reported GPS and microtechnology measures used within individual sports in order to present the contemporary and emerging themes of GPS application within team sports. A systematic review of the application of GPS technology in team sports was conducted. We systematically searched electronic databases from earliest record to June 2012. Permutations of key words included GPS; male and female; age 12-50 years; able-bodied; and recreational to elite competitive team sports. The 35 manuscripts meeting the eligibility criteria included 1,276 participants (age 11.2-31.5 years; 95 % males; 53.8 % elite adult athletes). The majority of manuscripts reported on GPS use in various football codes: Australian football league (AFL; n = 8), soccer (n = 7), rugby union (n = 6), and rugby league (n = 6), with limited representation in other team sports: cricket (n = 3), hockey (n = 3), lacrosse (n = 1), and netball (n = 1). Of the included manuscripts, 34 (97 %) detailed work rate patterns such as distance, relative distance, speed, and accelerations, with only five (14.3 %) reporting on impact variables. Activity profiles characterizing positional play and competitive levels were also described. Work rate patterns were typically categorized into six speed zones, ranging from 0 to 36.0 km·h⁻¹, with descriptors ranging from walking to sprinting used to identify the type of activity mainly performed in each zone. With the exception of cricket, no standardized speed zones or definitions were observed within or
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Szpilman, David; Orlowski, James P
2016-09-01
Aquatic sports are included in the top list of risky practices as the environment per se carries a possibility of death by drowning if not rescued in time. Not only are aquatic sports related to a high risk of death, but also all sports practiced on the water, over the water and on ice. Whatever the reason a person is in the water, drowning carries a higher possibility of death if the individual is unable to cope with the water situation, which may simply be caused by an inability to stay afloat and get out of the water or by an injury or disease that may lead to physical inability or unconsciousness. The competitive nature of sports is a common pathway that leads the sports person to exceed their ability to cope with the environment or simply misjudge their physical capability. Drowning involves some principles and medical interventions that are rarely found in other medical situations as it occurs in a deceptively hostile environment that may not seem dangerous. Therefore, it is essential that health professionals are aware of the complete sequence of action in drowning. This article focuses on the pulmonary injury in sports and recreational activities where drowning plays the major role. Copyright ©ERS 2016.
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American College of Sports Medicine Joint Position Statement. Nutrition and Athletic Performance.
Thomas, D Travis; Erdman, Kelly Anne; Burke, Louise M
2016-03-01
It is the position of the Academy of Nutrition and Dietetics, Dietitians of Canada, and the American College of Sports Medicine that the performance of, and recovery from, sporting activities are enhanced by well-chosen nutrition strategies. These organizations provide guidelines for the appropriate type, amount, and timing of intake of food, fluids, and supplements to promote optimal health and performance across different scenarios of training and competitive sport. This position paper was prepared for members of the Academy of Nutrition and Dietetics, Dietitians of Canada (DC), and American College of Sports Medicine (ACSM), other professional associations, government agencies, industry, and the public. It outlines the Academy's, DC's and ACSM's stance on nutrition factors that have been determined to influence athletic performance and emerging trends in the field of sports nutrition. Athletes should be referred to a registered dietitian/nutritionist for a personalized nutrition plan. In the United States and in Canada, the Certified Specialist in Sports Dietetics (CSSD) is a registered dietitian/nutritionist and a credentialed sports nutrition expert.
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Wasserman, Edward A.; And Others
1975-01-01
The present series of experiments attempted to analyze more fully the contributions of stimulus-reinforcer and response-reinforcer relations to autoshaping within a single conditioning situation. (Author)
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Safe treatment of sport related concussion
Van Kampen, D.A.; Lovell, M.R.; Diercks, Ron
2006-01-01
Sport related concussion is a hot item. The Health Council of the Netherlands published its report on concussions in 2003 and there is much concern about the negative health effects of sports related concussion. Neuropsychological testing has recently been endorsed as a 'cornerstone' of concussion
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Relationship between sport commitment and sport consumer behavior
Directory of Open Access Journals (Sweden)
Norberta Elisa Fernandes
2013-12-01
Full Text Available The purpose of this study was to examine the relationships between sport commitment and three types of sport consumer behaviors: participation frequency, sporting goods and media consumption. A survey was conducted among sport participants of both individual and team sports, fitness and outdoor activities (n= 900. The survey included questions related to demographic information, measures of sport commitment and sport consumption behavior. The results analyzed trough structural equation modeling showed that the sport commitment influences positively the participation frequency, sporting goods consumption and media consumption. Implications of these results are discussed and suggestions for future research on sport consumers are provided.
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Intrinsic-extrinsic factors in sport motivation.
Pedersen, Darhl M
2002-10-01
Participants were 83 students (36 men and 47 women). 10 intrinsic-extrinsic factors involved in sport motivation were obtained. The factors were generated from items obtained from the participants rather than items from the experimenter. This was done to avoid the possible influence of preconceptions on the part of the experimenter regarding what the final dimensions may be. Obtained motivational factors were Social Reinforcement, Fringe Benefits, Fame and Fortune, External Forces, Proving Oneself, Social Benefits, Mental Enrichment, Expression of Self, Sense of Accomplishment, and Self-enhancement. Each factor was referred to an intrinsic-extrinsic dimension to describe its relative position on that dimension. The order of the factors as listed indicates increasing intrinsic motivation. i.e., the first four factors were rated in the extrinsic range, whereas the remaining six were rated to be in the intrinsic range. Next, the participants rated the extent to which each of the various factors was involved in their decision to participate in sport activities. The pattern of use of the motivational factors was the same for both sexes except that men indicated greater use of the Fringe Benefits factor. Overall, the more intrinsic a sport motivation factor was rated, the more likely it was to be rated as a factor in actual sport participation.
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American Medical Society for Sports Medicine position statement: concussion in sport.
Harmon, Kimberly G; Drezner, Jonathan A; Gammons, Matthew; Guskiewicz, Kevin M; Halstead, Mark; Herring, Stanley A; Kutcher, Jeffrey S; Pana, Andrea; Putukian, Margot; Roberts, William O
2013-01-01
, rugby, soccer and basketball. RISK FACTORS FOR SPORT-RELATED CONCUSSION: ▸ A history of concussion is associated with a higher risk of sustaining another concussion. ▸ A greater number, severity and duration of symptoms after a concussion are predictors of a prolonged recovery. ▸ In sports with similar playing rules, the reported incidence of concussion is higher in female athletes than in male athletes. ▸ Certain sports, positions and individual playing styles have a greater risk of concussion. ▸ Youth athletes may have a more prolonged recovery and are more susceptible to a concussion accompanied by a catastrophic injury. ▸ Preinjury mood disorders, learning disorders, attention-deficit disorders (ADD/ADHD) and migraine headaches complicate diagnosis and management of a concussion. ▸ Concussion remains a clinical diagnosis ideally made by a healthcare provider familiar with the athlete and knowledgeable in the recognition and evaluation of concussion. ▸ Graded symptom checklists provide an objective tool for assessing a variety of symptoms related to concussions, while also tracking the severity of those symptoms over serial evaluations. ▸ Standardised assessment tools provide a helpful structure for the evaluation of concussion, although limited validation of these assessment tools is available. ▸ Any athlete suspected of having a concussion should be stopped from playing and assessed by a licenced healthcare provider trained in the evaluation and management of concussions. ▸ Recognition and initial assessment of a concussion should be guided by a symptoms checklist, cognitive evaluation (including orientation, past and immediate memory, new learning and concentration), balance tests and further neurological physical examination. ▸ While standardised sideline tests are a useful framework for examination, the sensitivity, specificity, validity and reliability of these tests among different age groups, cultural groups and settings is largely
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Sports Related Injuries: Incidence, Management and Prevention
Stanger, Michael A.
1982-01-01
The incidence of injury related to various sports is reviewed according to sport, area of injury, number of participants and hours per week spent at the sport. Organized sports accounted for fewer injuries than unsupervised recreational activities like tree climbing, skateboarding and running. The knee is the most commonly injured site. Sensitivity to patients' commitment to their sport is necessary: sometimes instead of rest, they can substitute a less hazardous form of exercise. Principles ...
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Jones, Bethany Alice; Arcelus, Jon; Bouman, Walter Pierre; Haycraft, Emma
2017-04-01
Whether transgender people should be able to compete in sport in accordance with their gender identity is a widely contested question within the literature and among sport organisations, fellow competitors and spectators. Owing to concerns surrounding transgender people (especially transgender female individuals) having an athletic advantage, several sport organisations place restrictions on transgender competitors (e.g. must have undergone gender-confirming surgery). In addition, some transgender people who engage in sport, both competitively and for leisure, report discrimination and victimisation. To the authors' knowledge, there has been no systematic review of the literature pertaining to sport participation or competitive sport policies in transgender people. Therefore, this review aimed to address this gap in the literature. Eight research articles and 31 sport policies were reviewed. In relation to sport-related physical activity, this review found the lack of inclusive and comfortable environments to be the primary barrier to participation for transgender people. This review also found transgender people had a mostly negative experience in competitive sports because of the restrictions the sport's policy placed on them. The majority of transgender competitive sport policies that were reviewed were not evidence based. Currently, there is no direct or consistent research suggesting transgender female individuals (or male individuals) have an athletic advantage at any stage of their transition (e.g. cross-sex hormones, gender-confirming surgery) and, therefore, competitive sport policies that place restrictions on transgender people need to be considered and potentially revised.
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CDC's Approach to Educating Coaches about Sports-Related Concussion
Mitchko, Jane; Huitric, Michele; Sarmiento, Kelly; Hayes, Gail; Pruzan, Marcia; Sawyer, Richard
2007-01-01
Sports-related concussions can happen to any athlete in any sport. Each year in the United States, an estimated 1.6-3.8 million sports and recreation-related traumatic brain injuries (TBIs) occur, most of which can be classified as concussions. To help coaches prevent, recognize, and better manage sports-related concussions, the Centers for…
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Martin, Ryan J; Nelson, Sarah
2014-10-01
Participation in fantasy sports increases annually. Wagering on fantasy sports is a form of gambling and researchers have found that fantasy sports participants are more likely to engage in other forms of sports betting than non-fantasy players; however, no published studies have examined whether there is a relationship between fantasy sports participation and gambling-related problems. Our study examined whether fantasy sports participation is associated with gambling-related problems among college students. We assessed fantasy sports participation and endorsement of DSM-5 gambling disorder (GD) criteria among a large convenience sample (N=1556) of college students via an online health survey. We found that 11.5% of respondents participated in fantasy sports in the past year, the majority of which were males. Logistic regression analyses indicated that males who play fantasy sports for money and females who play fantasy sports (for money or not) were more likely to experience gambling-related problems. Copyright © 2014 Elsevier Ltd. All rights reserved.
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Effects of Signaled Positive Reinforcement on Problem Behavior Maintained by Negative Reinforcement
Schieltz, Kelly M.; Wacker, David P.; Romani, Patrick W.
2017-01-01
We evaluated the effects of providing positive reinforcement for task completion, signaled via the presence of a tangible item, on escape-maintained problem behavior displayed by three typically developing children during one-time 90-min outpatient evaluations. Brief functional analyses of problem behavior, conducted within a multielement design,…
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Sports Related Fractures Presenting To an Orthopaedic Department ...
African Journals Online (AJOL)
Objective: To profile the patients with sports related fractures. Patients and methods: This was a retrospective study of patients sustaining a sport related fracture between January 2000 and December 2006. The medical records including the demographic data, type of sport, mechanism and location of injury, and treatment ...
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Rewarded by Punishment: Reflections on the Disuse of Positive Reinforcement in Education.
Maag, John W.
2001-01-01
This article delineates the reasons why educators find punishment a more acceptable approach for managing students' challenging behaviors than positive reinforcement. The article argues that educators should plan the occurrence of positive reinforcement to increase appropriate behaviors rather than running the risk of it haphazardly promoting…
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Bakir, Yakup; Kangalgil, Murat
2017-01-01
Sport, an element of universal culture, is a prominent tool that brings individuals with different languages, races and religions together. Sport is generally defined as activities that positively affect the psychological health of people and bring about social and moral benefits besides its physical benefits. Mental well-being is defined as the…
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A Comparison of Positive Reinforcement and Punishment in Two Special Education Classes.
Otto, Richard G.
Compared was the effectiveness of punishment and positive reinforcement on the nonattending behaviors and academic achievement of 18 elementary grade children in two special classes for children with social or adjustment problems. During the positive reinforcement condition each student earned a slash mark whenever he was observed attending to…
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High-grade renal injuries are often isolated in sports-related trauma.
Patel, Darshan P; Redshaw, Jeffrey D; Breyer, Benjamin N; Smith, Thomas G; Erickson, Bradley A; Majercik, Sarah D; Gaither, Thomas W; Craig, James R; Gardner, Scott; Presson, Angela P; Zhang, Chong; Hotaling, James M; Brant, William O; Myers, Jeremy B
2015-07-01
Most high-grade renal injuries (American Association for Surgery of Trauma (AAST) grades III-V) result from motor vehicle collisions associated with numerous concomitant injuries. Sports-related blunt renal injury tends to have a different mechanism, a solitary blow to the flank. We hypothesized that high-grade renal injury is often isolated in sports-related renal trauma. We identified patients with AAST grades III-V blunt renal injuries from four level 1 trauma centres across the United States between 1/2005 and 1/2014. Patients were divided into "Sport" or "Non-sport" related groups. Outcomes included rates of hypotension (systolic blood pressure 110bpm), concomitant abdominal injury, and procedural/surgical intervention between sports and non-sports related injury. 320 patients met study criteria. 18% (59) were sports-related injuries with the most common mechanisms being skiing, snowboarding and contact sports (25%, 25%, and 24%, respectively). Median age was 24 years for sports and 30 years for non-sports related renal injuries (p=0.049). Males were more commonly involved in sports related injuries (85% vs. 72%, p=0.011). Median injury severity score was lower for sports related injuries (10 vs. 27, pinjury scale scores. Sports related trauma was more likely to be isolated without other significant injury (69% vs. 39% (psports and non-sports renal injuries (p=0.30). Sports injuries had lower transfusion (7% vs. 47%, psports vs. 18% non-sports, p=0.95). High-grade sports-related blunt renal trauma is more likely to occur in isolation without other abdominal or thoracic injuries and clinicians must have a high suspicion of renal injury with significant blows to the flank during sports activities. Copyright © 2015 Elsevier Ltd. All rights reserved.
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Dyremyhr, Ase Eriksen; Diaz, Esperanza; Meland, Eivind
2014-01-01
Physical exercise has positive effects on health. However, its associations with self-rated health and body image, which are important predictors for adolescents' wellbeing and later morbidity, are complex. Cross-sectional survey among 2527 Norwegian adolescents. We examined the relations between self-reported gender, body size, amount and type of exercise and measures of self-rated health, drive for thinness, and desire to change body, with binary logistic regression analyses. Girls and overweight students reported to a greater extent than their peers impaired self-rated health, weight concerns, and desire to change their body. Increasing amount of time spent on sports was related to improved self-rated health in a dose-response manner. Both girls and boys who engaged in individual sports with an advantage of leanness, but only girls engaged in team sports, reported an increased desire to change the body. However, weight concern was not related to amount or type of sports. Physical exercise is positively related to self-reported health but has negative associations with body image for many adolescents. Health promotion efforts should consider this paradox and stimulate physical activity and sports along with body acceptance.
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Directory of Open Access Journals (Sweden)
Åse Eriksen Dyremyhr
2014-01-01
Full Text Available Background. Physical exercise has positive effects on health. However, its associations with self-rated health and body image, which are important predictors for adolescents’ wellbeing and later morbidity, are complex. Methods. Cross-sectional survey among 2527 Norwegian adolescents. We examined the relations between self-reported gender, body size, amount and type of exercise and measures of self-rated health, drive for thinness, and desire to change body, with binary logistic regression analyses. Results. Girls and overweight students reported to a greater extent than their peers impaired self-rated health, weight concerns, and desire to change their body. Increasing amount of time spent on sports was related to improved self-rated health in a dose-response manner. Both girls and boys who engaged in individual sports with an advantage of leanness, but only girls engaged in team sports, reported an increased desire to change the body. However, weight concern was not related to amount or type of sports. Conclusions. Physical exercise is positively related to self-reported health but has negative associations with body image for many adolescents. Health promotion efforts should consider this paradox and stimulate physical activity and sports along with body acceptance.
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Sport, public relations and social media
Boyle, Raymond; Haynes, Richard
2014-01-01
This chapter examines the disruptive nature of social media as it alters the relationship between sports journalism and public relations. It looks at some key examples and argues that while much is changing, some aspects of the relationship between the media and sports also remain constant.
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Abstract "why" Thoughts About Success Lead to Greater Positive Generalization in Sport Participants.
Van Lier, Jens; Moulds, Michelle L; Raes, Filip
2015-01-01
Generalizing from a single failure or success to future performances and their self-concept could have an important impact on sport participants. This study examined the impact of the way sport participants think about success on positive generalization. Sport participants (N = 222) completed an online experimental study in which they were induced to think about meanings, causes and implications (i.e., abstract-"why"-thinking) or about more perceptual concrete aspects of their performance (i.e., concrete-"how"-thinking). We hypothesized that abstract-"why"-thinking would lead to greater positive generalization and that this effect would be moderated by self-esteem. Our results supported our hypothesis that abstract thinking increased positive generalization, and this effect was more clearly visible in sport participants with higher self-esteem. These results suggest that retrospective thinking about the "why" of a good performance may benefit athletes in the long run because they generalize the outcome to future performances and their self-concept which may boost their motivation and consequently their performance.
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Biomechanical aspects of sports-related head injuries.
Park, Min S; Levy, Michael L
2008-02-01
With the increased conditioning, size, and speed of professional athletes and the increase in individuals engaging in sports and recreational activities, there is potential for rising numbers of traumatic brain injuries in sports. Fortunately, parallel strides in basic research technology and improvements in computer and video technology have created a new era of discovery in the study of the biomechanical aspects of sports-related head injuries. Although prevention will always be the most important factor in reducing the incidence of sports-related traumatic brain injuries, ongoing studies will lead to the development of newer protective equipment, improved recognition and management of concussions on the field of play, and modification of rules and guidelines to make these activities safer and more enjoyable.
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Haslam, S. Alexander; Mallett, Cliff J.; Steffens, Niklas K.; Peters, Kim; Boen, Filip
2016-01-01
Research aims The present article provides a comprehensive examination of the relationship between playing position and leadership in sport. More particularly, it explores links between leadership and a player’s interactional centrality—defined as the degree to which their playing position provides opportunities for interaction with other team members. This article examines this relationship across different leadership roles, team sex, and performance levels. Results Study 1 (N = 4443) shows that athlete leaders (and the task and motivational leader in particular) are more likely than other team members to occupy interactionally central positions in a team. Players with high interactional centrality were also perceived to be better leaders than those with low interactional centrality. Study 2 (N = 308) established this link for leadership in general, while Study 3 (N = 267) and Study 4 (N = 776) revealed that the same was true for task, motivational, and external leadership. This relationship is attenuated in sports where an interactionally central position confers limited interactional advantages. In other words, the observed patterns were strongest in sports that are played on a large field with relatively fixed positions (e.g., soccer), while being weaker in sports that are played on a smaller field where players switch positions dynamically (e.g., basketball, ice hockey). Beyond this, the pattern is broadly consistent across different sports, different sexes, and different levels of skill. Conclusions The observed patterns are consistent with the idea that positions that are interactionally central afford players greater opportunities to do leadership—either through communication or through action. Significantly too, they also provide a basis for them to be seen to do leadership by others on their team. Thus while it is often stated that “leadership is an action, not a position,” it is nevertheless the case that, when it comes to performing that
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Brady, Don; Brady, Flo
2011-01-01
Sport-related concussions (SRC) are not limited to specific age ranges, professional athletes, or gender. The primary focus of much of SRC research pertains to the assessment, management, and return to play (RTP) of the concussed athlete. This article highlights some major issues of SRC along with some controversies that presently exist within the…
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Marek Pavlik
2013-01-01
There is a running discussion about the system of financing sport from public budgets and there are opinions that the sport is not sufficiently supported. We know surprisingly little about the situation of non-profit sport clubs and to find a better support system we have to gather information about the environment of sport clubs. What do we know about relations of sport clubs with public authorities and their own sport union/federation and why do we need to know? The aim of this paper is to ...
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American College of Sports Medicine position stand. Nutrition and athletic performance.
Rodriguez, Nancy R; Di Marco, Nancy M; Langley, Susie
2009-03-01
It is the position of the American Dietetic Association, Dietitians of Canada, and the American College of Sports Medicine that physical activity, athletic performance, and recovery from exercise are enhanced by optimal nutrition. These organizations recommend appropriate selection of foods and fluids, timing of intake, and supplement choices for optimal health and exercise performance. This updated position paper couples a rigorous, systematic, evidence-based analysis of nutrition and performance-specific literature with current scientific data related to energy needs, assessment of body composition, strategies for weight change, nutrient and fluid needs, special nutrient needs during training and competition, the use of supplements and ergogenic aids, nutrition recommendations for vegetarian athletes, and the roles and responsibilities of the sports dietitian. Energy and macronutrient needs, especially carbohydrate and protein, must be met during times of high physical activity to maintain body weight, replenish glycogen stores, and provide adequate protein to build and repair tissue. Fat intake should be sufficient to provide the essential fatty acids and fat-soluble vitamins and to contribute energy for weight maintenance. Although exercise performance can be affected by body weight and composition, these physical measures should not be a criterion for sports performance and daily weigh-ins are discouraged. Adequate food and fluid should be consumed before, during, and after exercise to help maintain blood glucose concentration during exercise, maximize exercise performance, and improve recovery time. Athletes should be well hydrated before exercise and drink enough fluid during and after exercise to balance fluid losses. Sports beverages containing carbohydrates and electrolytes may be consumed before, during, and after exercise to help maintain blood glucose concentration, provide fuel for muscles, and decrease risk of dehydration and hyponatremia. Vitamin
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In-office management of sport-related concussion.
Reynolds, Erin; Collins, Michael W
2014-01-01
The field of sport-related concussion has grown exponentially over the past decade, with more concussion-specific clinics being identified in major hospital systems as well as independent practitioner's offices. To date, there is no standardized in-office protocol for managing ongoing symptoms. The University of Pittsburgh Medical Center (UPMC) Sports Concussion Program, established in 2000, is one of the largest programs in the USA, pioneering the way in clinical management, research, and education of sport-related concussion. This report will outline the essential components of a successful concussion clinic, using the UPMC Sports Concussion Program as a case example of best practice. We will share several case studies illustrating the individualized and complex nature of this injury, as well as review important rehabilitation components. © 2014 S. Karger AG, Basel.
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Positive Reinforcement and Logical Consequences in the Treatment of Classroom Encopresis.
Lyon, Mark A.
1984-01-01
A child with a diagnosis of mild mental retardation was treated for encopresis. Positive reinforcement procedures for continence and logical consequences for soiling were effective in accomplishing complete continence during the final phase of treatment. An ABCDA design with a decelerating rate of reinforcement was utilized to assess treatment…
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Furjan Mandic, Gordana; Peric, Mia; Krzelj, Lucijana; Stankovic, Sladana; Zenic, Natasa
2013-01-01
Although nutrition and doping are important factors in sports, neither is often investigated in synchronized swimming (Synchro).This study aimed to define and compare Synchro athletes and their coaches on their knowledge of sports nutrition (KSN)and knowledge of doping (KD); and to study factors related to KSN and KD in each of these groups. Additionally, the KSNand KD questionnaires were evaluated for their reliability and validity. Altogether, 82 athletes (17.2 ± 1.92 years of age) and 28 coaches (30.8 ± 5.26 years of age) from Croatia and Serbia were included in the study, with a 99% response rate. The testand retest correlations were 0.94 and 0.90 for the KD and KSN,respectively. Subjects responded equally to 91% queries of the KD and 89% queries of the KSN. Although most of the coache sare highly educated, they declared self-education as the primary source of information about doping and sport-nutrition. Coaches scored higher than their athletes on both questionnaires which defined appropriate discriminative validity of the questionnaires. Variables such as age, sports experience and formal education are positively correlated to KSN and KD scores among athletes. The athletes who scored better on the KD are less prone to doping behavior in the future. These data reinforce the need for systematic educational programs on doping and sports nutrition in synchronized swimming. Special attention should be placed on younger athletes. Key Points Although most of the synchro coaches are highly educated, self-education is declared as the primary source of information about doping and sportnutrition. The knowledge of doping and doping-health hazards are negatively related to potential doping behavior in the future among synchronized swimmers The data reinforce the need for systematic educational programs on doping and sports nutrition in synchronized swimming. We advocate improving the knowledge of sports nutrition among older coaches and the knowledge of doping among
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Furjan Mandic, Gordana; Peric, Mia; Krzelj, Lucijana; Stankovic, Sladana; Zenic, Natasa
2013-01-01
Although nutrition and doping are important factors in sports, neither is often investigated in synchronized swimming (Synchro).This study aimed to define and compare Synchro athletes and their coaches on their knowledge of sports nutrition (KSN)and knowledge of doping (KD); and to study factors related to KSN and KD in each of these groups. Additionally, the KSNand KD questionnaires were evaluated for their reliability and validity. Altogether, 82 athletes (17.2 ± 1.92 years of age) and 28 coaches (30.8 ± 5.26 years of age) from Croatia and Serbia were included in the study, with a 99% response rate. The testand retest correlations were 0.94 and 0.90 for the KD and KSN,respectively. Subjects responded equally to 91% queries of the KD and 89% queries of the KSN. Although most of the coache sare highly educated, they declared self-education as the primary source of information about doping and sport-nutrition. Coaches scored higher than their athletes on both questionnaires which defined appropriate discriminative validity of the questionnaires. Variables such as age, sports experience and formal education are positively correlated to KSN and KD scores among athletes. The athletes who scored better on the KD are less prone to doping behavior in the future. These data reinforce the need for systematic educational programs on doping and sports nutrition in synchronized swimming. Special attention should be placed on younger athletes. Key PointsAlthough most of the synchro coaches are highly educated, self-education is declared as the primary source of information about doping and sportnutrition.The knowledge of doping and doping-health hazards are negatively related to potential doping behavior in the future among synchronized swimmersThe data reinforce the need for systematic educational programs on doping and sports nutrition in synchronized swimming.We advocate improving the knowledge of sports nutrition among older coaches and the knowledge of doping among
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Kramer, D; Stronks, K; Maas, J; Wingen, M; Kunst, A E
2015-04-01
Studies on the relation between the social neighborhood environment and sports participation have produced inconsistent results. Use of generic sports outcomes may have obscured associations only apparent for sports at certain locations. This study aims to assess the association between the social neighborhood environment and three location-specific sports outcomes. Repeated cross-sectional data on sports participation (any type of sports, sports at indoor sports clubs, sports at outdoor sports clubs, sports on streets) were obtained from 20 600 adults using the Dutch national health survey 2006-2009. Data on neighborhood social safety and social capital were obtained using the Dutch Housing Research 2006. Over 40% of Dutch adults participated in any type of sports. Indoor sports clubs were most popular. Multilevel logistic regression analyses revealed that neighborhood social safety was positively associated with sports at indoor sports clubs [odds ratio (OR) = 1.25, 95% confidence interval (CI) = 1.06-1.48), but not with the other sports outcomes. Contrary, neighborhood social capital was positively associated with sports on streets only (OR = 1.69, 95% CI = 1.17-2.44). The results suggest that a positive social neighborhood environment enhances sports participation, but that this impact depends on the location of the sports activity. This study highlights the importance of using location-specific sports outcomes when assessing environmental determinants. © 2014 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
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Youth sport: positive and negative impact on young athletes
Directory of Open Access Journals (Sweden)
Merkel DL
2013-05-01
Full Text Available Donna L Merkel Bryn Mawr Rehabilitation Hospital, Main Line Health System, Exton, PA, USA Abstract: Organized youth sports are highly popular for youth and their families, with approximately 45 million children and adolescent participants in the US. Seventy five percent of American families with school-aged children have at least one child participating in organized sports. On the surface, it appears that US children are healthy and happy as they engage in this traditional pastime, and families report higher levels of satisfaction if their children participate. However, statistics demonstrate a childhood obesity epidemic, with one of three children now being overweight, with an increasingly sedentary lifestyle for most children and teenagers. Increasing sports-related injuries, with 2.6 million emergency room visits a year for those aged 5–24 years, a 70%–80% attrition rate by the time a child is 15 years of age, and programs overemphasizing winning are problems encountered in youth sport. The challenges faced by adults who are involved in youth sports, from parents, to coaches, to sports medicine providers, are multiple, complex, and varied across ethnic cultures, gender, communities, and socioeconomic levels. It appears that an emphasis on fun while establishing a balance between physical fitness, psychologic well-being, and lifelong lessons for a healthy and active lifestyle are paramount for success. Keywords: youth sports, injuries, benefits, risks, prevention, specialization
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International society of sports nutrition position stand: nutrient timing
Kerksick, Chad M.; Arent, Shawn; Schoenfeld, Brad J.; Stout, Jeffrey R.; Campbell, Bill; Wilborn, Colin D.; Taylor, Lem; Kalman, Doug; Smith-Ryan, Abbie E.; Kreider, Richard B.; Willoughby, Darryn; Arciero, Paul J.; VanDusseldorp, Trisha A.; Ormsbee, Michael J.; Wildman, Robert
2017-01-01
Position statement The International Society of Sports Nutrition (ISSN) provides an objective and critical review regarding the timing of macronutrients in reference to healthy, exercising adults and in particular highly trained individuals on exercise performance and body composition. The following points summarize the position of the ISSN: Nutrient timing incorporates the use of methodical planning and eating of whole foods, fortified foods and dietary supplements. The timing of energy inta...
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Mouratidis, Athanasios; Vansteenkiste, Maarten; Lens, Willy; Sideridis, Georgios
2008-04-01
Based on self-determination theory (Deci & Ryan, 2000), an experimental study with middle school students participating in a physical education task and a correlational study with highly talented sport students investigated the motivating role of positive competence feedback on participants' well-being, performance, and intention to participate. In Study 1, structural equation modeling favored the hypothesized motivational model, in which, after controlling for pretask perceived competence and competence valuation, feedback positively predicted competence satisfaction, which in turn predicted higher levels of vitality and greater intentions to participate, through the mediation of autonomous motivation. No effects on performance were found. Study 2 further showed that autonomous motivation mediated the relation between competence satisfaction and well-being, whereas a motivation mediated the negative relation between competence satisfaction and ill-being and rated performance. The discussion focuses on the motivational role of competence feedback in sports and physical education settings.
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A literature review of sports-related orofacial trauma.
Kumamoto, David P; Maeda, Yoshinobu
2004-01-01
This literature review evaluates the significance of dental injuries and their relationship to specific sports activities. Many studies have been published on individual sports or groups of sports but most pertain to specific age groups or levels of competition. Research suggests that many sports that do not require mouthguards should encourage male and female participants to use orofacial protectors. Athletes, coaches, athletic directors, athletic trainers, parents, and members of the dental community should be aware of how individuals who participate in sporting activities are at risk for dental trauma. Any sport where the potential for dental trauma can exist (such as basketball, soccer, or wrestling) should consider utilizing mouthguards to protect the competitors. The establishment of mouthguard programs for athletes of all ages, genders, and sports may help to reduce the incidence of dental trauma. A sports-related, orofacial/dental trauma reporting system is considered.
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MODELLING THE INTERACTION IN GAME SPORTS - RELATIVE PHASE AND MOVING CORRELATIONS
Directory of Open Access Journals (Sweden)
Martin Lames
2006-12-01
Full Text Available Model building in game sports should maintain the constitutive feature of this group of sports, the dynamic interaction process between the two parties. For single net/wall games relative phase is suggested to describe the positional interaction between the two players. 30 baseline rallies in tennis were examined and relative phase was calculated by Hilbert transform from the two time-series of lateral displacement and trajectory in the court respectively. Results showed that relative phase indicates some aspects of the tactical interaction in tennis. At a more abstract level the interaction between two teams in handball was studied by examining the relationship of the two scoring processes. Each process can be conceived as a random walk. Moving averages of the scoring probabilities indicate something like a momentary strength. A moving correlation (length = 20 ball possessions describes the momentary relationship between the teams' strength. Evidence was found that this correlation is heavily time-dependent, in almost every single game among the 40 examined ones we found phases with a significant positive as well as significant negative relationship. This underlines the importance of a dynamic view on the interaction in these games.
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Adult sports-related traumatic brain injury in United States trauma centers.
Winkler, Ethan A; Yue, John K; Burke, John F; Chan, Andrew K; Dhall, Sanjay S; Berger, Mitchel S; Manley, Geoffrey T; Tarapore, Phiroz E
2016-04-01
OBJECTIVE Sports-related traumatic brain injury (TBI) is an important public health concern estimated to affect 300,000 to 3.8 million people annually in the United States. Although injuries to professional athletes dominate the media, this group represents only a small proportion of the overall population. Here, the authors characterize the demographics of sports-related TBI in adults from a community-based trauma population and identify predictors of prolonged hospitalization and increased morbidity and mortality rates. METHODS Utilizing the National Sample Program of the National Trauma Data Bank (NTDB), the authors retrospectively analyzed sports-related TBI data from adults (age ≥ 18 years) across 5 sporting categories-fall or interpersonal contact (FIC), roller sports, skiing/snowboarding, equestrian sports, and aquatic sports. Multivariable regression analysis was used to identify predictors of prolonged hospital length of stay (LOS), medical complications, inpatient mortality rates, and hospital discharge disposition. Statistical significance was assessed at α sports-related TBIs were documented in the NTDB, which represented 18,310 incidents nationally. Equestrian sports were the greatest contributors to sports-related TBI (45.2%). Mild TBI represented nearly 86% of injuries overall. Mean (± SEM) LOSs in the hospital or intensive care unit (ICU) were 4.25 ± 0.09 days and 1.60 ± 0.06 days, respectively. The mortality rate was 3.0% across all patients, but was statistically higher in TBI from roller sports (4.1%) and aquatic sports (7.7%). Age, hypotension on admission to the emergency department (ED), and the severity of head and extracranial injuries were statistically significant predictors of prolonged hospital and ICU LOSs, medical complications, failure to discharge to home, and death. Traumatic brain injury during aquatic sports was similarly associated with prolonged ICU and hospital LOSs, medical complications, and failure to be discharged to
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Finch, Caroline F; Boufous, Soufiane
2008-01-01
Sport-related heat illness has not been commonly studied from an epidemiological perspective. This study presents the descriptive epidemiology of sports/leisure-related heat illness hospitalisations in New South Wales, Australia. All in-patient separations from all acute hospitals in NSW during 2001-2004, with an International Classification of Diseases external cause of injury code indicating "exposure to excessive natural heat (X30)" or any ICD-10 diagnosis code in the range: "effects of heat and light (T67.0-T67.9)", were analysed. The sport/leisure relatedness of cases was defined by ICD-10-AM activity codes indicating involvement in sport/leisure activities. Cases of exposure to heat while engaged in sport/leisure were described by gender, year, age, principal diagnosis, type of activity/sport and length of stay. There were 109 hospital separations for exposure to heat while engaging in sport/leisure activity, with the majority occurring during the hottest months. The number of male cases significantly increased over the 4-year period and 45+ -year olds had the largest number of cases. Heat exhaustion was the leading cause of hospital separation (40% of cases). Marathon running, cricket and golf were the activities most commonly associated with heat-related hospitalisation. Ongoing development and refinement of expert position statements regarding heat illnesses need to draw on both epidemiological and physiological evidence to ensure their relevance to all levels of risk from the real world sport training and competition contexts.
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The Integrative Role of Sport in Multicultural Societies
Hatzigeorgiadis, Antonis; Morela, Eleftheria; Elbe, Anne-Marie; Kouli, Olga; Sanchez, Xavier
2013-01-01
Sport participation has been recognized as an important socializing agent; the sport environment is considered a suitable setting for the development of social and moral values, particularly for youth. Therefore, it can be argued that participation in sport may reinforce understanding and respect of
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Abstract ‘why’ thoughts about success lead to greater positive generalization in sport participants
Directory of Open Access Journals (Sweden)
Jens eVan Lier
2015-11-01
Full Text Available Generalizing from a single failure or success to future performances and their self-concept could have an important impact on sport participants. This study examined the impact of the way sport participants think about success on positive generalization. Sport participants (N=222 completed an online experimental study in which they were induced to think about meanings, causes and implications (i.e., abstract-‘why’-thinking or about more perceptual concrete aspects of their performance (i.e., concrete-‘how’-thinking. We hypothesized that abstract-‘why’-thinking would lead to greater positive generalization and that this effect would be moderated by self-esteem. Our results supported our hypothesis that abstract thinking increased positive generalization, and this effect was more clearly visible in sport participants with higher self-esteem. These results suggest that retrospective thinking about the ‘why’ of a good performance may benefit athletes in the long run because they generalize the outcome to future performances and their self-concept which may boost their motivation and consequently their performance.
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Sports related injuries in Scottish adolescents aged 11-15
Williams, J. M.; Wright, P.; Currie, C. E.; Beattie, T. F.
1998-01-01
OBJECTIVES: To measure the age and sex distribution of self reported sports and leisure injuries in a 12 month retrospective recall period among a representative national sample of Scottish adolescents, and to examine the characteristics (gender, age, handedness, and level of sports participation) of sports related injuries in relation to injuries sustained during other activities. DESIGN/SETTING: Self completion questionnaire survey administered in schools during April- June 1994. SUBJ...
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Outcome analysis of sports-related multiple facial fractures.
Hwang, Kun; You, Sun Hye; Lee, Hong Sik
2009-05-01
In this paper, we report a retrospective study of 236 patients with facial bone fractures from various sports who were treated at the Department of Plastic and Reconstructive Surgery, Inha University Hospital, Incheon, South Korea, between February 1996 and April 2007. The medical records of these patients were reviewed and analyzed to determine the clinical characteristics and treatment of the sports-related facial bone fractures. The highest frequency of sports-related facial bone fractures was in the age group 11 to 20 years (40.3%); there was a significant male predominance in all age groups (13.75:1). The most common causes of the injury were soccer (38.1%), baseball (16.1%), basketball (12.7%), martial arts (6.4%), and skiing or snowboarding (11%). Fractures of the nasal bone were the most common in all sports; mandible fractures were common in soccer and martial arts, orbital bone fractures were common in baseball, basketball, and ice sports, and fractures of the zygoma were frequently seen in soccer and martial arts. The main causes of the sports injuries were direct body contact (50.8%), and the most commonly associated soft tissue injuries were found in the head and neck regions (92.3%). Nasal bone fractures were the most common (54.2%), and tripod fractures were the most common type of complex injuries (4.2%). The complication rate was 3.0%. Long-term epidemiological data regarding the natural history of sports-related facial bone fractures are important for the evaluation of existing preventative measures and for the development of new methods of injury prevention and treatment.
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Mind the Gap: The Layered Reconstruction of Gender in Sport Related Organizations
Claringbould, I.E.C.
2008-01-01
Most sports are structured by gender resulting in sex segregation by sport. This formal division of an activity based on gender is unique in sport, in contrast paid and volunteer work in sport are not formally segregated by gender.. Qualified men and women may engage in this work regardless of sport. Yet, informal gender segregation also occurs in this work. Although men and women participate in similar numbers in sport, there is still a gender gap in positions of leadership. The goal of this...
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Indigenous Participation in Australian Sport: The Perils of the ‘Panacea’ Proposition
Directory of Open Access Journals (Sweden)
John Robert Evans
2015-04-01
Full Text Available The argument that participation in sport among disadvantaged populations can produce positive outcomes in wide range of areas has been a consistent theme in academic literature. It is argued that sport participation can promote women’s empowerment, sexuality, lifestyle, peacemaking, youth development, poverty reduction and conflict resolution. Similarly, in Australia, participation in sport among Indigenous Australians has been proffered as a ‘panacea’ for many Indigenous problems; from promoting better health and education outcomes, to encouraging community building, good citizenship and entrepreneurship. Parallel to this has been a focus on documenting and analysing sport participation among Indigenous Australians in elite sport which often concludes that Indigenous Australians have an innate and ‘natural ability’ in sports. These two assumptions, first, that sport participation can help realise a wide range of positive social outcomes; and second, that Indigenous Australians are natural athletes, have driven significant public investment in numerous sport focused programs. This paper questions these assumptions and outlines some of the challenges inherent with an emphasis on sport as a solution to Indigenous disadvantage. We highlight how participation in sport has often been tied to ambitious, ill-defined and, in terms of evaluation, often elusive social outcome goals. Second, we also argue that there is limited research to indicate that participation in either elite or grassroots level sport has led to any discernible social progress in addressing inequality. We contrast historical Indigenous participation in a range of sporting codes to demonstrate the influence of factors beyond the ‘natural ability’ and ‘born to play’ propositions. Finally, we outline six ‘perils’ associated with viewing sport as a panacea; including how privileging sport can not only perpetuate disadvantage by reinforcing stereotypes and also
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Sports-related concussions and the Louisiana Youth Concussion Act.
Nanda, Anil; Khan, Imad Saeed; Goldman, Rose; Testa, Marcia
2012-01-01
Concussion, also referred to as mild traumatic brain injury (TBI), is defined as a "complex pathophysiological process affecting the brain, induced by traumatic biomechanical forces." Various symptoms may be observed in patients with concussions. All of these might not be evident at the time of the injury and be intermittent in their nature. It is estimated that 300,000 of the yearly TBIs in the United States are sports-related, the second leading cause for TBIs after motor vehicle accidents among people aged 15 to 24 years old. Due to some recently reported high profile injuries and deaths of sports personalities, sports-related concussion has seen increasing media and public interest in the last decade. We review the role of football in youth concussions and analyze the Nationwide Inpatient Sample from 2007 to 2009 to elucidate the outcome and costs associated with sports-related concussions of the youth in the United States. We also review the latest state legislative efforts to decrease the incidence of dangerous sports-related concussions in youth--the Louisiana Youth Concussion Act.
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The relative age effect in sport: a developmental systems model.
Wattie, Nick; Schorer, Jörg; Baker, Joseph
2015-01-01
The policies that dictate the participation structure of many youth sport systems involve the use of a set selection date (e.g. 31 December), which invariably produces relative age differences between those within the selection year (e.g. 1 January to 31 December). Those born early in the selection year (e.g. January) are relatively older—by as much as 12 months minus 1 day—than those born later in the selection year (e.g. December). Research in the area of sport has identified a number of significant developmental effects associated with such relative age differences. However, a theoretical framework that describes the breadth and complexity of relative age effects (RAEs) in sport does not exist in the literature. This paper reviews and summarizes the existing literature on relative age in sport, and proposes a constraints-based developmental systems model for RAEs in sport.
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International society of sports nutrition position stand: caffeine and performance
Directory of Open Access Journals (Sweden)
Wildman Robert
2010-01-01
Full Text Available Abstract Position Statement: The position of The Society regarding caffeine supplementation and sport performance is summarized by the following seven points: 1. Caffeine is effective for enhancing sport performance in trained athletes when consumed in low-to-moderate dosages (~3-6 mg/kg and overall does not result in further enhancement in performance when consumed in higher dosages (≥ 9 mg/kg. 2. Caffeine exerts a greater ergogenic effect when consumed in an anhydrous state as compared to coffee. 3. It has been shown that caffeine can enhance vigilance during bouts of extended exhaustive exercise, as well as periods of sustained sleep deprivation. 4. Caffeine is ergogenic for sustained maximal endurance exercise, and has been shown to be highly effective for time-trial performance. 5. Caffeine supplementation is beneficial for high-intensity exercise, including team sports such as soccer and rugby, both of which are categorized by intermittent activity within a period of prolonged duration. 6. The literature is equivocal when considering the effects of caffeine supplementation on strength-power performance, and additional research in this area is warranted. 7. The scientific literature does not support caffeine-induced diuresis during exercise, or any harmful change in fluid balance that would negatively affect performance.
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Vannini, F; Spalding, T; Andriolo, L; Berruto, M; Denti, M; Espregueira-Mendes, J; Menetrey, J; Peretti, G M; Seil, R; Filardo, G
2016-06-01
Sports activities are considered favourable for general health; nevertheless, a possible influence of sports practice on the development of early osteoarthritis (OA) is a cause for concern. A higher incidence of OA in knees and ankles of former high-impact sports players than in those of the normal population has been shown and it is still debatable whether the cause is either to be recognized generically in the higher number of injuries or in a joint overload. The possibility to address knee OA in its early phases may be strictly connected to the modification of specific extrinsic or intrinsic factors, related to the patient in order to save the joint from further disease progression; these include sport practice, equipment and load. Non-surgical therapies such as continuative muscles reinforce and training play a strong role in the care of athletes with early OA, particularly if professional. There is an overall agreement on the need of an early restoring of a proper meniscal, ligament and cartilage integrity in order to protect the knee and resume sports safely, whereas alignment is a point still strongly debatable especially for professional athletes. Remaining questions still to be answered are the risks of different sports in relation to one another, although an actual protective effect of low-impact sports, such as walking, swimming or cycling, has been recognized on the appearance or worsening of OA, the effect of continuing or ceasing to practice a sport on the natural history of early OA, and even following appropriate treatment is still unknown.
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Beyond Positive Reinforcement: OBM as a Humanizing Approach to Management Practices
Crowell, Charles R.
2005-01-01
This article comments on the need to recognize that OBM already is a "positive psychology" for many more reasons than just that it embraces positive reinforcement as a cornerstone of workplace improvement. This paper suggests there are at least 10 ways in which OBM constitutes a distinctly "positive" and humanizing approach to management…
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Ties That Bond: Youth Sport as a Vehicle for Social Identity and Positive Youth Development.
Bruner, Mark W; Balish, Shea M; Forrest, Christopher; Brown, Sarah; Webber, Kristine; Gray, Emily; McGuckin, Matthew; Keats, Melanie R; Rehman, Laurene; Shields, Christopher A
2017-06-01
An emerging area of research has focused on understanding how the group dynamics of a sport team influence positive youth development (PYD). The identities that youth form through their membership in sport teams (i.e., social identities) have been found to influence teammate behavior and team performance. Yet, minimal work exists on social identity and PYD in youth sport. The purpose of this study was to investigate the relationship between social identity and PYD in sport. Youth engaged in recreational sport (N = 219; M age = 11.61 years, SD = 1.39 years) completed measures of social identity and PYD in sport. The social identity measure assessed 3 dimensions including ingroup ties (IGT; perceptions of similarity, bonding, belongingness), cognitive centrality (importance of being a team member), and ingroup affect (IGA; feelings associated with group membership). A regression analysis was performed separately for 4 PYD outcomes (personal and social skills, goal setting, initiative, negative experiences) with the 3 dimensions of social identity entered as predictors. Regression analyses revealed that IGT and IGA were positively associated with personal and social skills (R 2 Adj. = .29). Further, IGT predicted initiative (R 2 Adj. = .16), whereas IGA was positively associated with goal setting (R 2 Adj. = .17) and negatively associated with negative experiences (R 2 Adj. = .08). The findings extend previous research highlighting the benefits of social identity on teammate behavior and team performance and demonstrate how social identity may contribute to PYD through sport.
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Kostka, Marion P.; Galassi, John P.
1974-01-01
The study compared modified versions of systematic desensitization and covert positive reinforcement to a no-treatment control condition in the reduction of test anxiety. On an anagrams performance test, the covert reinforcement and control groups were superior to the desensitization group. (Author)
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Fagher, Kristina; Jacobsson, Jenny; Timpka, Toomas; Dahlström, Örjan; Lexell, Jan
2016-01-01
Paralympic sport provides sporting opportunities for athletes with a disability, with the Paralympic Games as the main event. Participation in sport is, however, associated with a significant risk for sustaining injuries and illnesses. Our knowledge of sports-related injuries and illnesses in Paralympic sport is very limited and there are no large-scale epidemiological cohort studies. The purpose here is to present a protocol for a prospective longitudinal study: The Sports-Related Injuries and Illnesses in Paralympic Sport Study (SRIIPSS). An argument-based method for investigation of design problems was used to structure the study protocol. The primary requirement of the protocol is to allow prospective studies over time and include exposure to both training and competition. To reflect the complexity of Paralympic sport with athletes' pre-existing impairments, use of assistive equipment, pain and other and medical issues, it is required that the data collection system is specifically adapted to Paralympic sport. To allow the collection of data, at the same time as there is limited access to coaches and medical personnel, it is advantageous that data can be collected online directly from the athletes. Based on this a self-report athlete monitoring system will be developed, where the athletes can enter data weekly via their mobile phones or lap-tops. Data will be collected from around 100 Swedish Paralympic athletes for approximately 1 year, which will allow us to i) prospectively estimate the annual incidence of sports-related injuries and illnesses and ii) explore risk factors and mechanisms for sustaining sports-related injuries and illnesses based on athlete exposure and training loads. For effective implementation of injury and illness prevention measures, comprehensive epidemiological knowledge is required. This study will be the first prospective longitudinal self-report study of sports-related injuries and illnesses in Paralympic sport over a longer period
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Sgrò, P; Di Luigi, L
2017-09-01
The relationships between sport and sexuality in males are of great social and clinical interest, because of sports and motor activities that highly promote social and sexual relationships. Even if few literature exist, two main questions should be taken into account: whether and how physical exercise and sport positively or negatively influence sexual health and behavior and/or whether and how sexual behavior may affect a sub-sequent sport performance. Physical exercise and sport per se can influence, positively or negatively, the hypothalamic-pituitary-testicular axis function and, consequently, the individual's reproductive and/or sexual health. This depends on individual factors such as genetic and epigenetic ones and on different variables involved in the practice of sport activities (type of sport, intensity and duration of training, doping and drug use and abuse, nutrition, supplements, psychological stress, allostatic load, etc.). If well conducted, motor and sport activities could have beneficial effects on sexual health in males. Among different lifestyle changes, influencing sexual health, regular physical activity is fundamental to antagonize the onset of erectile dysfunction (ED). However, competitive sport can lead both reproductive and/or sexual tract damages and dysfunctions, transient (genital pain, hypoesthesia of the genitalia, hypogonadism, DE, altered sexual drive, etc.) or permanent (hypogonadism, DE, etc.), by acting directly (traumas of the external genitalia, saddle-related disorders in cyclists, etc.) or indirectly (exercise-related hypogonadism, drug abuse, doping, stress, etc.). Sexual activities shortly performed before a sport competition could differently influence sport performance. Due to the few existing data, it is advisable to avoid an absolute pre-competition sexual abstinence.
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Heaney, Caroline A; Rostron, Claire L; Walker, Natalie C; Green, Alison J K
2017-01-01
The use of sport psychology strategies during sport injury rehabilitation can lead to several positive outcomes such as improved adherence and self-efficacy. The purpose of this study was to compare the sport psychology related attitudes and behaviours of UK sport injury rehabilitation professionals (SIRPs) who had studied the psychological aspects of sport injury to those who had not. Ninety-four SIRPs (54 physiotherapists and 40 sports therapists with a mean of 9.22 years' experience of working in sport) completed an online survey and were grouped according to their level of previous exposure to sport injury psychology education at an undergraduate/postgraduate level. Analyses were undertaken to establish whether there were any differences in sport psychology related attitude (MANOVA), usage (MANOVA), and referral behaviours (chi square) between the groups. The MANOVA and chi square tests conducted revealed that those who had studied the psychological aspects of sport injury reported using significantly more sport psychology in their practice and making more referrals to sport psychologists. It was concluded that sport injury psychology education appears to be effective in increasing the sport psychology related behaviours (use of sport psychology and referral) of SIRPs and should be integrated into professional training. Copyright © 2016 Elsevier Ltd. All rights reserved.
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Conflict on the courts: a review of sports-related violence literature.
Fields, Sarah K; Collins, Christy L; Comstock, R Dawn
2007-10-01
Sports-related violence is a form of interpersonal violence. Violence that occurs in and around the sporting world can have potentially severe physical and psychological repercussions for those involved. Although scholars in a wide range of disciplines have addressed three of the subsets of sports-related violence, they have done so without regard to the interconnected nature of the subsets, choosing instead to look at hazing, brawling, and foul play as independent problems. By separating hazing, brawling, and foul play and failing to recognize that their connection to sport connects them, scholars fail to see how sports-related violence is a broad example of interpersonal violence. This review describes some of the academic literature, primarily from the United States, and identifies similar themes and prevention suggestions that appear across disciplines. It also argues that the three subsets are an interconnected whole of sports-related violence that deserves more detailed study.
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Sports-related injuries of the spine
International Nuclear Information System (INIS)
Hochmuth, K.; Mack, M.G.; Vogl, T.J.; Kurth, A.A.; Zichner, L.
2002-01-01
Different sports show different patterns and frequencies of injuries, which are discussed in this paper. About 3% of all sports accidents relate to the spine. These injuries often have far-reaching consequences for the patients. A very early and extensive diagnosis of all changes is decisive for the start of an adequate therapy and thus for the prognosis of the injury. Radiological diagnosis is also of decisive importance for the documentation of late injuries and in the question of rehabilitation. Here special focus is put on MRT and CT diagnostics.A healthy spine of humans is normally able to resist all static and dynamic strains of the usual sports. However, anomalies and dysfunctions of the spine can reduce its capacity to resist strain. The recommendations of sporting activities are given according to the extent of deflection and the expected growth. The importance of radiology in primary diagnosis and in the follow-up due to typical changes like scoliosis, Morbus Scheuerman, spondylolysis and spondylolisthesis is discussed here as well. (orig.) [de
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Behavioral assessment in youth sports: coaching behaviors and children's attitudes.
Smith, R E; Zane, N W; Smoll, F L; Coppel, D B
1983-01-01
To define the characteristics and dimensional patterning of coaching behaviors, 15,449 behaviors of 31 youth basketball coaches were coded in terms of a 10-category system. Post-season attitude and self-esteem data were obtained from players on 23 teams and were related to the behavioral measures. Compared with rates of reinforcement, encouragement, and technical instruction, punitive responses occurred relatively infrequently. Factor analysis of the coaching behaviors indicated that supportive and punitive behavioral dimensions were orthogonal or statistically independent of one another rather than opposite ends of the same dimension. Punitive and instructional categories were part of the same behavior cluster. The relationship between coaching behaviors and the various player attitudes were highly specific in nature. Coaching behaviors accounted for about half of the variance in post-season attitudes toward the coach and the sport, but for significantly less variance in measures of team solidarity and self-esteem. Surprisingly, the rate of positive reinforcement was unrelated to any of the attitudinal measures. Punishment was negatively related to liking for the coach. In general, technical instruction categories were the strongest predictors of basketball player attitudes.
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Mandatory Parent Education Programs Can Create Positive Youth Sport Experiences
Christofferson, Jennifer; Strand, Bradford
2016-01-01
Youth sport leaders must not ignore the influence parents have on creating a positive developmental experience for young athletes. Therefore, expectations involving parental involvement and conduct must be addressed prior to athletes' participation. This article aims to examine the importance of creating mandatory parental training programs for…
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First-Time Sports-Related Concussion Recovery: The Role of Sex, Age, and Sport.
Neidecker, John M; Gealt, David B; Luksch, John R; Weaver, Martin D
2017-10-01
Concussion is one of the most common injuries in athletes. Current concussion consensus statements propose that female sex may be a modifying factor in concussion management and recovery. To determine whether female athletes in middle school and high school with a first-time, sports-related concussion remained symptomatic longer than their male counterparts. A retrospective medical record analysis was performed among athletes who sustained a concussion between 2011 and 2013. Inclusion criteria consisted of age between 11 and 18 years and diagnosis of first-time concussion sustained while playing organized sports. Using the documented notes in the medical record, length of time that each athlete was symptomatic from his or her concussion was calculated. A total of 110 male and 102 female athletes (N=212) met the eligibility criteria for the study. A significant difference was found in the median number of days female athletes remained symptomatic (28 days) when compared with male athletes (11 days) (Psports played. Female athletes aged 11 to 18 years with first-time, sports-related concussions remained symptomatic for a longer period when compared with male athletes of similar age, regardless of sport played. The mechanism behind this difference needs to be further elucidated.
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ED utilization trends in sports-related traumatic brain injury.
Hanson, Holly R; Pomerantz, Wendy J; Gittelman, Mike
2013-10-01
Emergency department (ED) visits for sports-related traumatic brain injuries (TBIs) have risen. This study evaluated how the number and severity of admissions have changed as ED visits for sports-related TBIs have increased. A retrospective study of children aged 0 to 19 years at a level 1 trauma center was performed. Patients from 2002 to 2011 with a primary or secondary diagnosis of TBI were identified from the hospital's inpatient and outpatient trauma registries. Frequencies were used to characterize the population, χ(2) analysis was performed to determine differences between groups, and regression analysis looked at relationship between year and injury severity score or length of stay. Sport was responsible for injury in 3878 (15.4%) cases during the study period; 3506 (90.4%) were discharged from the hospital, and 372 (9.6%) were admitted. Seventy-three percent were male patients and 78% Caucasian; mean age was 13 ± 3.5 years. ED visits for sports-related TBIs increased 92% over the study period, yet there was no significant change (χ(2) = 9.8, df = 9, P = .37) in the percentage of children admitted. Mean injury severity score for those admitted decreased from 7.8 to 4.8 (β = -0.46; P = .006); length of stay trended downward (β = -0.05; P = .05). The percentage of children being admitted from the ED with sports-related TBI has not changed over the past 10 years. The severity of admitted sports-related TBI is decreasing. Additional research is needed to correlate these trends with other TBI mechanisms.
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Sport psychological skill levels and related psychosocial factors that ...
African Journals Online (AJOL)
Sport psychological skill levels and related psychosocial factors that distinguish ... players' perceived ability to be psychologically well prepared for competitions. ... reference to practical implications for future sport psychological skills training
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Takahashi, H; Sassa, T; Shibuya, T; Kato, M; Koeda, M; Murai, T; Matsuura, M; Asai, K; Suhara, T; Okubo, Y
2012-03-20
Weight gain has been identified as being responsible for increased morbidity and mortality rates of schizophrenia patients. For the management of weight gain, exercise is one of the most acknowledged interventions. At the same time, exercise and sports have been recognized for their positive impact on psychiatric symptoms of schizophrenia. However, the neurobiological basis for this remains poorly understood. We aimed to examine the effect of sports participation on weight gain, psychiatric symptoms and brain activation during sports observation in schizophrenia patients. Thirteen schizophrenia patients who participated in a 3-month program, including sports participation and 10 control schizophrenia patients were studied. In both groups, body mass index (BMI), Positive and Negative Syndrome Scale (PANSS), and brain activation during observation of sports-related actions measured by functional magnetic resonance imaging were accessed before and after a 3-month interval. BMI and general psychopathology scale of PANSS were significantly reduced in the program group but not in the control group after a 3-month interval. Compared with baseline, activation of the body-selective extrastriate body area (EBA) in the posterior temporal-occipital cortex during observation of sports-related actions was increased in the program group. In this group, increase in EBA activation was associated with improvement in the general psychopathology scale of PANSS. Sports participation had a positive effect not only on weight gain but also on psychiatric symptoms in schizophrenia. EBA might mediate these beneficial effects of sports participation. Our findings merit further investigation of neurobiological mechanisms underlying the therapeutic effect of sports for schizophrenia.
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Prevalence of knee instability in relation to sports activity
DEFF Research Database (Denmark)
Hahn, Thomas; Foldspang, Anders; Hansen, Thorsten Ingemann
2001-01-01
to be positively associated with female gender and different features of occupational work. In conclusion, knee instability is a commonly reported phenomenon among active athletes. It was found to be independent of the type and the amount of sports activity but highly dependent on female gender, type and amount......The objective was to estimate the prevalence of knee instability among active athletes and to investigate potential associations to type, amount and duration of sports participation. Based on a questionnaire, 339 athletes provided information about different features of occupation, sports activity...... and knee instability. The 12-month period prevalence of knee instability and constant or recurrent knee instability, and absence from sport and absence from work due to knee instability, was 22%, 14%, 5% and 1%, respectively. Knee instability as such, and constant or recurrent knee instability were found...
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Croll, Jillian K; Neumark-Sztainer, Dianne; Story, Mary; Wall, Melanie; Perry, Cheryl; Harnack, Lisa
2006-05-01
To examine eating habits and energy and nutrient intake among adolescents participating in weight-related and power team sports and non-sport-involved adolescents. Data were drawn from Project EAT (Eating Among Teens), which was conducted with 4,746 adolescents from 31 middle and high schools in the Minneapolis/St Paul metropolitan area. Urban secondary schools. Adolescents reporting participation in a weight-related sport, a power team sport, or no consistent participation in a sport. Meal and snack frequency, mean energy and nutrient intake, and mean physical activity. Analyses were conducted by sex across the three groups. General linear models were used to compare mean energy and nutrient intake, composite nutrient adequacy, and mean physical activity across the three groups. Percentages of youth meeting nutrient recommendations were compared across the three groups using chi(2) tests. For both males and females, youth involved in weight-related sports ate breakfast more frequently than non-sport-involved peers (females: 3.6 and 3.2 times per week, respectively, Psport-involved youth also had higher mean protein, calcium, iron, and zinc intakes than non-sport-involved peers. However, adolescent females had low calcium intake, regardless of sports involvement (weight-related sports 1,091 mg/day, power team sports 1,070 mg/day, and non-sport-involved 1,028 mg/day, PSport-involved adolescents have better eating habits and nutrient intake than their non-sport-involved peers. However, they are still in need of nutrition interventions, particularly around calcium intake.
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Establishing an elite sport: the men and hounds of the National Beagle Club of America, 1890-1940
Garneau, Christine Elise
2012-01-01
This thesis argues that the National Beagle Club of America defined and regulated beagling as a way for upper class men to demonstrate their social status in a sporting context. As members of the American elite, the club’s leadership used their personal resources and social access to shape the sport for their own purposes. The club’s governing documents and regular events reinforced ideas about exclusivity, performance, and wealth. The breed standard formalized the dogs’ position as animal...
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Vlahovich, Nicole; Fricker, Peter A; Brown, Matthew A; Hughes, David
2017-01-01
As Australia's peak high-performance sport agency, the Australian Institute of Sport (AIS) has developed this position statement to address the implications of recent advances in the field of genetics and the ramifications for the health and well-being of athletes. Genetic testing has proven of value in the practice of clinical medicine. There are, however, currently no scientific grounds for the use of genetic testing for athletic performance improvement, sport selection or talent identification. Athletes and coaches should be discouraged from using direct-to-consumer genetic testing because of its lack of validation and replicability and the lack of involvement of a medical practitioner in the process. The transfer of genetic material or genetic modification of cells for performance enhancement is gene doping and should not be used on athletes. There are, however, valid roles for genetic research and the AIS supports genetic research which aims to enhance understanding of athlete susceptibility to injury or illness. Genetic research is only to be conducted after careful consideration of a range of ethical concerns which include the provision of adequate informed consent. The AIS is committed to providing leadership in delivering an ethical framework that protects the well-being of athletes and the integrity of sport, in the rapidly changing world of genomic science. PMID:27899345
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Vanlandewijck, Yves C; Verellen, Joeri; Tweedy, Sean
2011-07-01
In most Paralympic wheelchair sports, active trunk range of movement is assessed by observing shoulder girdle excursion during active trunk movements and is a key determinant of an athlete's class. However, to date research evaluating the impact of reduced trunk range of movement on wheelchair sports performance has not been conducted. In the present study, 15 non-disabled male participants performed two 20-s sprints on a wheelchair ergometer in each of three seating positions. Positions were typical of those used to enhance sitting stability in wheelchair sport and each impacted available trunk range of movement differently: condition-90 (seated with thighs horizontal; unrestricted range of movement) condition-45 (seated with thighs in 45°), and condition-0 (seated with hips maximally flexed; minimum range of movement). In condition-90, the trunk only actively contributed to the first push; for the remainder of the sprint, the trunk was held almost isometrically at 48.2° to the horizontal (range 42.1-56.4°). Similar patterns were observed for both condition-45 and condition-0. Compared with condition-90, participants in condition-0 had reduced capacity to accelerate of statistical (P sports performance, including strapping, seating position, and impairments of trunk muscle power and coordination.
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Tsuchiya, Shinobu; Tsuchiya, Masahiro; Momma, Haruki; Sekiguchi, Takuya; Kuroki, Kaoru; Kanazawa, Kenji; Koseki, Takeyoshi; Igarashi, Kaoru; Nagatomi, Ryoichi; Hagiwara, Yoshihiro
2017-12-29
Sports-related dental injuries, such as tooth fracture, loosening, and avulsion, are a major concern among young athletes because they directly impair oral function. Although the preventive efficacy of mouthguards has been well established, the prevalence of sports-related dental injuries remains high among young athletes. The aim of this study is to identify the variables contributing to the risk of sports-related dental injuries by conducting a survey on large population of young athletes in Miyagi prefecture. A cross-sectional study was conducted with school-aged athletes (aged 6-15 years, n = 5735) using a self-reported questionnaire. The questionnaire examined general variables, including sex, age, and body mass index; sports-related variables, including sports-type, team level, activity schedule, break time, and verbal/physical abuse by coaches; and lifestyle variables related to free time, including screen-time and sleep duration. Their associations with sports-related dental injuries were examined using multivariate logistic regression models. The prevalence of sports-related dental injuries was 13.3% (763 of 5735 young athletes) and was higher in males (14.3%, 592 of 4132) than in females (10.7%, 171 of 1603; adjusted odds ratios [ORs] and 95% confidence intervals [CIs]: 1.48 [1.22-1.79], p sports-related dental injuries were evident for three variables-insufficient break time, verbal abuse, and physical punishment-in males (adjusted ORs [95% CI]: 1.35 [1.03-1.77], p = 0.032; 1.31 [1.05-1.62], p = 0.015; and 1.36 [1.06-1.75], p = 0.016, respectively) but not in females (adjusted ORs [95% CI]: 0.88 [0.53-1.47], p = 0.623; 1.29 [0.87-1.91], p = 0.206; and 0.97 [0.57-1.63], p = 0.894, respectively). Although our results might be based on the individual athlete's self-perception to the sports-related variables, our results suggest that insufficient break time, verbal abuse, and physical punishment from coaches are positively
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Epidemiology of sport-related spinal cord injuries: A systematic review.
Chan, Christie Wl; Eng, Janice J; Tator, Charles H; Krassioukov, Andrei
2016-05-01
Despite the recognition of sports as a significant contributor in the etiology of spinal cord injury (SCI), no studies have systematically explored the epidemiology of SCI caused by sports. This paper aims to give a systematic overview of the epidemiology of sport-related spinal cord injury around the world. A systematic review was conducted to identify published literature reporting the epidemiology of SCI caused by sports. The literature search was conducted in MEDLINE/PubMed, CINAHL, EMBASE, PsycINFO and Sportdiscus with date limits 1980 through to July 2015. Data from 54 studies covering 25 countries was extracted and collated. Important findings include identification of 6 countries in which sports accounts for over 13% of SCI (highest to lowest: Russia, Fiji, New Zealand, Iceland, France and Canada); individual sports with high risk for SCI (diving, skiing, rugby, and horseback riding); and the most common level of injury for various sports (almost entirely cervical for hockey, skiing, diving and American football, while over half of horseback riding and snowboarding injuries are thoracic or lumbosacral). This paper identifies countries and sports with higher rates of sport-related SCIs where implementation of prevention programs and reporting systems to track SCI epidemiology may be helpful, and highlights gaps in our current knowledge for further investigation. The comparison of SCI occurrence for each sport across countries, as well as examination of the specific characteristics of SCI incurred for individual sports will assist in directing efforts for prevention.
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Sports hernia repair with adductor tenotomy.
Harr, J N; Brody, F
2017-02-01
Sports hernias, or athletic pubalgia, is common in athletes, and primarily involves injury to the fascia, muscles, and tendons of the inguinal region near their insertion onto the pubic bone. However, management varies widely, and rectus and adductor tenotomies have not been adequately described. The purpose of this manuscript is to demonstrate a suture repair and a rectus and adductor longus tenotomy technique for sports hernias. After magnetic-resonance-imaging confirmation of sports hernias with rectus and adductor tendonitis, 22 patients underwent a suture herniorrhaphy with adductor tenotomy. The procedure is performed through a 4-cm incision, and a fascial release of the rectus abdominis and adductor tenotomy is performed to relieve the opposing vector forces on the pubic bone. All 22 patients returned to their respective sports and regained their ability to perform at a high level, including professional status. No further surgery was required. In athletes with MRI confirmation of rectus and adductor longus injuries, tenotomies along with a herniorraphy may improve outcomes. A suture repair to reinforce the inguinal floor prevents mesh-related complications, especially in young athletes.
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Pediatric sports-related traumatic brain injury in United States trauma centers.
Yue, John K; Winkler, Ethan A; Burke, John F; Chan, Andrew K; Dhall, Sanjay S; Berger, Mitchel S; Manley, Geoffrey T; Tarapore, Phiroz E
2016-04-01
OBJECTIVE Traumatic brain injury (TBI) in children is a significant public health concern estimated to result in over 500,000 emergency department (ED) visits and more than 60,000 hospitalizations in the United States annually. Sports activities are one important mechanism leading to pediatric TBI. In this study, the authors characterize the demographics of sports-related TBI in the pediatric population and identify predictors of prolonged hospitalization and of increased morbidity and mortality rates. METHODS Utilizing the National Sample Program of the National Trauma Data Bank (NTDB), the authors retrospectively analyzed sports-related TBI data from children (age 0-17 years) across 5 sports categories: fall or interpersonal contact (FIC), roller sports, skiing/snowboarding, equestrian sports, and aquatic sports. Multivariable regression analysis was used to identify predictors of prolonged length of stay (LOS) in the hospital or intensive care unit (ICU), medical complications, inpatient mortality rates, and hospital discharge disposition. Statistical significance was assessed at α sports-related TBIs were recorded in the NTDB, and these injuries represented 11,614 incidents nationally after sample weighting. Fall or interpersonal contact events were the greatest contributors to sports-related TBI (47.4%). Mild TBI represented 87.1% of the injuries overall. Mean (± SEM) LOSs in the hospital and ICU were 2.68 ± 0.07 days and 2.73 ± 0.12 days, respectively. The overall mortality rate was 0.8%, and the prevalence of medical complications was 2.1% across all patients. Severities of head and extracranial injuries were significant predictors of prolonged hospital and ICU LOSs, medical complications, failure to discharge to home, and death. Hypotension on admission to the ED was a significant predictor of failure to discharge to home (OR 0.05, 95% CI 0.03-0.07, p sports was independently associated with prolonged hospital LOS compared with FIC events (mean increase
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Ethical Climate and Sports Personship
Directory of Open Access Journals (Sweden)
BASILIKI EFREMIDOU
2010-01-01
Full Text Available Moral behavior in sports is one of the most important issues that concern sportspersons. The aim of the present study was to examine whether the ethical work climate that prevails in non profit sport teams is related to moral behaviours (sports personship. Two hundred and fourteen students of three sport schools (n=126males, n=88females, aged between 12-18 years, from ten different sports (both individual and team have been used in this study. The students filled in the Ethical Climate Questionnaire (ECQ; Victor &Cullen, 1987, 1988 and the Multidimensional Sportsperson-ship Orientation Scale (Vallerand, Briere, Blanchard, & Provencher, 1997. The results revealed the presence of a caring climate in non profit sport teams. Moreover, it was found that the individual climate is positively related to the four dimensions of sportsperson ship, while the machiavelianism climate is negatively related to the dimension respect for rules and officials.
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Social Stratification, Gender and Sport Participation
Aaron Reeves
2012-01-01
Correlations between social class and specific types of sport participation have frequently been observed (Crook 1997; Ceron-Anaya 2010; Dollman and Lewis 2010; Stalsberg and Pedersen 2010). However, discrete associations between occupational class positions and specific sporting activities overlook the complex interrelationships amongst these sports. Until recently, understanding the relationality of sport has been constrained by a lack of available and appropriate data. Work by Bourdieu (19...
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Moreau, William J.; Nabhan, Dustin C.; Roecker, Christopher; Kimura, Melissa Nagare; Klein, Andrew; Guimard, Brett; Pierce, Kevin; Helma, Patrick; Nelson, Robert; Bahr, Kelly Shockley; Nelson, Laney; Williams, Perry
2015-01-01
Objective The purpose of this paper is to present a position statement of best practices for the provision of a safe and high-quality pre-participation examination (PPE) and to provide recommendations on education requirements for doctors of chiropractic providing the PPE. Methods In 2014, the American Chiropractic Board of Sports Physicians (ACBSP) Board of Directors identified a need to review and update the ACBSP position statements and practice guidelines in order to be current with evolving best practices. Twelve ACBSP certificants, 10 Diplomates of the ACBSP, and 2 Certified Chiropractic Sports Physicians, met in April 2015 to author a pre-participation position statement using an expert consensus process. Panel members excluded anyone with commercial conflicts of interest and included individuals with expertise in clinical sports medicine and the performance of PPEs. A literature review was performed and circulated in advance for use by the panel in addressing the topic. The position statement was written through a consensus process and accepted by the ACBSP Board of Directors in May of 2015. Results The ACBSP Position Statement on Pre-participation Examinations identifies the qualifications and best practices for doctors of chiropractic to perform a PPE. Conclusion This position statement states that doctors of chiropractic with post graduate education and current Diplomates of the ACBSP or Certified Chiropractic Sports Physicians certification have the prerequisite education and qualifying skills to perform PPEs. PMID:26778931
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Moreau, William J; Nabhan, Dustin C; Roecker, Christopher; Kimura, Melissa Nagare; Klein, Andrew; Guimard, Brett; Pierce, Kevin; Helma, Patrick; Nelson, Robert; Bahr, Kelly Shockley; Nelson, Laney; Williams, Perry
2015-09-01
The purpose of this paper is to present a position statement of best practices for the provision of a safe and high-quality pre-participation examination (PPE) and to provide recommendations on education requirements for doctors of chiropractic providing the PPE. In 2014, the American Chiropractic Board of Sports Physicians (ACBSP) Board of Directors identified a need to review and update the ACBSP position statements and practice guidelines in order to be current with evolving best practices. Twelve ACBSP certificants, 10 Diplomates of the ACBSP, and 2 Certified Chiropractic Sports Physicians, met in April 2015 to author a pre-participation position statement using an expert consensus process. Panel members excluded anyone with commercial conflicts of interest and included individuals with expertise in clinical sports medicine and the performance of PPEs. A literature review was performed and circulated in advance for use by the panel in addressing the topic. The position statement was written through a consensus process and accepted by the ACBSP Board of Directors in May of 2015. The ACBSP Position Statement on Pre-participation Examinations identifies the qualifications and best practices for doctors of chiropractic to perform a PPE. This position statement states that doctors of chiropractic with post graduate education and current Diplomates of the ACBSP or Certified Chiropractic Sports Physicians certification have the prerequisite education and qualifying skills to perform PPEs.
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Directory of Open Access Journals (Sweden)
Jovo Radoš
2008-08-01
Full Text Available Ethics, as a practical philosophy, is found in essential relationships and relations with other relevant practical disciplines (economics, law, politics, sport, etc.. Every human activity is ethically grounded. Therefore, human ethics, which includes sport ethics, is one of the fundamental criteria for establishing moral relations in different are as of sport life. Sport morale stems from a universally accepted ethics legal principles that aim at maintaining sport spirit based on the Olympics codex and humanity principles, among which are: consciousness and honesty, righteousness, cultural-behavior principle, openness, and the like. Changes in sport (organizational, structural, competition, etc. need to be adequately adjusted to universal, and generally accepted, values. Avoiding deontological ethics inevitably leads to increased sports immorality (referees_ fixing match results, spectators_ aggressive behavior, cheating using for bidden doping, etc.. Thus, projecting and introducing innovations in the field of sport, which, after all, are necessary and unavoidable in all areas of life, including sport, will eventually show its positive results only if the aforementioned aspects of sport ethics are taken into consideration.
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Sport psychology education for sport injury rehabilitation professionals: a systematic review.
Heaney, Caroline A; Walker, Natalie C; Green, Alison J K; Rostron, Claire L
2015-02-01
Sport psychology education has been shown to have a positive impact on the practice of sport injury rehabilitation professionals (SIRPs). The purpose of this paper is to review recommendations relating to such education. The paper presents a review of existing literature relating to the content and mode of delivery for a sport psychology education programme for SIRPs. The review seeks to address four questions: (1) What topic areas do researchers suggest should be integrated into the sport psychology education of SIRPs? (2) What topic areas are currently being recommended by professional bodies? (3) What are the findings of research examining the impact of sport psychology education on SIRPs? and (4) What do researchers recommend to be the most appropriate mode of delivery for sport psychology education for SIRPs? The findings of the review suggest that in order to maximise adherence amongst already qualified SIRPs sport psychology education should be delivered in a flexible short duration package. Additionally three broad areas that sport psychology education should cover emerged: (1) understanding of the psychological impact of injury, (2) interventions and psychological skills/techniques, and (3) referral and professional boundaries. This has important implications for the future training of SIRPs. Copyright © 2014 Elsevier Ltd. All rights reserved.
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Sports-Related Emergency Preparedness in Oregon High Schools.
Johnson, Samuel T; Norcross, Marc F; Bovbjerg, Viktor E; Hoffman, Mark A; Chang, Eunwook; Koester, Michael C
Best practice recommendations for sports-related emergency preparation include implementation of venue-specific emergency action plans (EAPs), access to early defibrillation, and first responders-specifically coaches-trained in cardiopulmonary resuscitation and automated external defibrillator (AED) use. The objective was to determine whether high schools had implemented these 3 recommendations and whether schools with a certified athletic trainer (AT) were more likely to have done so. Schools with an AT were more likely to have implemented the recommendations. Cross-sectional study. Level 4. All Oregon School Activities Association member school athletic directors were invited to complete a survey on sports-related emergency preparedness and AT availability at their school. Chi-square and Fisher exact tests were used to analyze the associations between emergency preparedness and AT availability. In total, 108 respondents (37% response rate) completed the survey. Exactly half reported having an AT available. Only 11% (95% CI, 6%-19%) of the schools had implemented all 3 recommendations, 29% (95% CI, 21%-39%) had implemented 2, 32% (95% CI, 24%-42%) had implemented 1, and 27% (95% CI, 19%-36%) had not implemented any of the recommendations. AT availability was associated with implementation of the recommendations (χ 2 = 10.3, P = 0.02), and the proportion of schools with ATs increased with the number of recommendations implemented (χ 2 = 9.3, P Schools with an AT were more likely to implement venue-specific EAPs (52% vs 24%, P schools were inadequately prepared for sports-related emergencies. Schools with an AT were more likely to implement some, but not all, of the recommendations. Policy changes may be needed to improve implementation. Most Oregon high schools need to do more to prepare for sports-related emergencies. The results provide evidence for sports medicine professionals and administrators to inform policy changes that ensure the safety of athletes.
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The influence of nationality and playing position on relative age ...
African Journals Online (AJOL)
These results suggest that late maturing players have been disproportionately lost to the South African system across all positions. Conclusion: Nation-specific youth sport culture appears to be more important than playing position for determining who is at risk of RAEs in rugby union. Keywords: birth date, team sport, talent ...
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Sports-related injuries in athletes with disabilities.
Fagher, K; Lexell, J
2014-10-01
The number of athletes with disabilities participating in organized sports and the popularity of the Paralympic Games is steadily increasing around the world. Despite this growing interest and the fact that participation in sports places the athlete at risk for injury, there are few studies concerning injury patterns, risk factors, and prevention strategies of injuries in disabled athletes. In this systematic literature search and critical review, we summarize current knowledge of the epidemiology of sports-related injuries in disabled athletes and describe their characteristics, incidence, prevalence, and prevention strategies. The outcomes of interest were any injury, either an acute trauma or an overuse event. PubMed, EMBASE, CINAHL, and Google Scholar were systematically searched and 25 of 605 identified studies met the inclusion criteria. Lower extremity injuries were more common in walking athletes, whereas upper extremity injuries were more prevalent in wheelchair athletes. The methodologies and populations varied widely between the studies. Few studies were sports or disability specific, which makes it difficult to determine specific risk factors, and few studies reported injury severity and prevention of injuries. Further longitudinal, systematic sports and disability specific studies are needed in order to identify and prevent injuries in athletes with disabilities. © 2014 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
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Mansfield, Louise
2008-01-01
This paper reconsiders the relationships between feminist perspectives and the figurational/process-sociological perspective of Norbert Elias for understanding gender, sport and sport-related activities. The main aim of the article is to respond to Colwell's claim that there are differences between feminist and figurational approaches to…
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Ties That Bond: Youth Sport as a Vehicle for Social Identity and Positive Youth Development
Bruner, Mark W.; Balish, Shea M.; Forrest, Christopher; Brown, Sarah; Webber, Kristine; Gray, Emily; McGuckin, Matthew; Keats, Melanie R.; Rehman, Laurene; Shields, Christopher A.
2017-01-01
An emerging area of research has focused on understanding how the group dynamics of a sport team influence positive youth development (PYD). The identities that youth form through their membership in sport teams (i.e., social identities) have been found to influence teammate behavior and team performance. Yet, minimal work exists on social…
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International society of sports nutrition position stand: diets and body composition
Aragon, Alan A.; Schoenfeld, Brad J.; Wildman, Robert; Kleiner, Susan; VanDusseldorp, Trisha; Taylor, Lem; Earnest, Conrad P.; Arciero, Paul J.; Wilborn, Colin; Kalman, Douglas S.; Stout, Jeffrey R.; Willoughby, Darryn S.; Campbell, Bill; Arent, Shawn M.; Bannock, Laurent
2017-01-01
Position Statement: The International Society of Sports Nutrition (ISSN) bases the following position stand on a critical analysis of the literature regarding the effects of diet types (macronutrient composition; eating styles) and their influence on body composition. The ISSN has concluded the following. 1) There is a multitude of diet types and eating styles, whereby numerous subtypes fall under each major dietary archetype. 2) All body composition assessment methods have strengths and limi...
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Behavior Management in Physical Education, Recreation, and Sport: A Bibliography.
Lavay, Barry
1986-01-01
This bibliography contains references specifically pertaining to physical education, recreation, or sport and to behavior management. The references are classified into areas of behavior management overview, reinforcement systems, motor performance, physical fitness, recreation, and sport. (MT)
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Pène, Pierre; Touitou, Yvan
2009-02-01
The report of the National Academy of Medicine named "Sport and Health" underlines the medical, social and educational dimensions of sporting activities. Various kinds of sporting practices are described: they concern the approximately 7,000 high level athletes, around 8,000 professional (licensed) sportsmen, and sporting club members (approximately 15 millions people). A large number of amateurs do not practice in any structure and therefore are neither managed in their activities nor medically followed. Some characteristics of sporting practice at various stages of life have been documented. Around 50% of the teenagers from 12 to 17 years have a sporting practice out-of-school besides the weekly three hours applied at school or college; however, the withdrawal of sporting practice by a high number of teenagers results in a sedentary lifestyle with overweight and obesity, major risks factors for health. Elderly people take a profit from a regular and medically controlled physical activity. Functional capacities are thus improved, cardiovascular risks factors among other, which results in better quality of life of the aged and delays their dependence. The benefit upon public health of sporting practice has been pointed out in the primary prevention of cardiovascular and respiratory diseases, osteoporosis, obesity, diabetes, breast and colon cancer, and mood disturbances. It is currently well acknowledged that sporting practice is an important component of public health in both primary and secondary prevention of many diseases. Deleterious effects of which the most serious is the sudden death related to a cardiovascular anomaly, which generally occurs during an important physical effort. An important sport drift is the practice of doping to improve performances through the use of hormones, anabolics, EPO, transfusions, ... When a person exceeds his/her capacities of adaptation, because of a badly adapted or a too intense drive, this overtraining results in a
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Positive behavioral contrast across food and alcohol reinforcers.
McSweeney, F K; Melville, C L; Higa, J
1988-01-01
The present study examined behavioral contrast during concurrent and multiple schedules that provided food and alcohol reinforcers. Concurrent-schedule contrast occurred in the responding reinforced by food when alcohol reinforcers were removed. It also occurred in the responding reinforced by alcohol when food was removed. Multiple-schedule contrast appeared for food when alcohol reinforcers were removed, but not for alcohol when food was removed. These results show that behavioral contrast ...
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Vlahovich, Nicole; Fricker, Peter A; Brown, Matthew A; Hughes, David
2017-01-01
As Australia's peak high-performance sport agency, the Australian Institute of Sport (AIS) has developed this position statement to address the implications of recent advances in the field of genetics and the ramifications for the health and well-being of athletes. Genetic testing has proven of value in the practice of clinical medicine. There are, however, currently no scientific grounds for the use of genetic testing for athletic performance improvement, sport selection or talent identification. Athletes and coaches should be discouraged from using direct-to-consumer genetic testing because of its lack of validation and replicability and the lack of involvement of a medical practitioner in the process. The transfer of genetic material or genetic modification of cells for performance enhancement is gene doping and should not be used on athletes. There are, however, valid roles for genetic research and the AIS supports genetic research which aims to enhance understanding of athlete susceptibility to injury or illness. Genetic research is only to be conducted after careful consideration of a range of ethical concerns which include the provision of adequate informed consent. The AIS is committed to providing leadership in delivering an ethical framework that protects the well-being of athletes and the integrity of sport, in the rapidly changing world of genomic science. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.
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Sports-related research trends at South African universities | Burnett ...
African Journals Online (AJOL)
This paper forms part of a more comprehensive national study and addresses the current tends of sports-related research in the different fields of scientific inquiry. Qualitative methods that entailed 20 interviews with representatives from relevant sports entities and 19 focus group sessions in which 73 people participated ...
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Directory of Open Access Journals (Sweden)
Mokhatar Shahrul Niza
2017-01-01
Full Text Available This paper reveals a study performed on reinforced concrete with artificial aggregate concrete block infill composite beams to innovate a lightweight reinforced concrete utilizing polyethylene (PE waste materials, such as waste plastic bags. Six beam specimens of normal reinforced concrete (NRC and different block infill replacement zone positions RCAI (RZ1 beams containing 100% MAPEA with 50, 95, and 1,000 mm width, height, and length, respectively, were provided for the block infill, whereas RCAI (RZ2 with different block infill positions containing a 100% MAPEA with 50, 115, and 1000 mm width, height, and length were provided and tested under low impact load. The steel impactor with blunt nose dropped at 0.6 m height which equivalent to 3.5 m/s. The behaviors of the beams were studied relative to the impact force-time and displacement-time histories, the flexural/ bending cracks, and the impact failure. Results show that the overall failure modes of all the beam specimens were successfully recorded. In addition, the residual displacements of the RZ2 was almost same than those of the RZ1 and the significantly lower than those of the NRC. In the reinforced concrete beams, less stressed concrete near the neutral axis can be replaced by certain light weight material like waste plastic bags as modified artificial polyethylene aggregates to serve as an artificial aggregate.
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The nature of sport and its relation to the aesthetic dimension of sport
Directory of Open Access Journals (Sweden)
Filip Kobiela
2016-12-01
Full Text Available In order to discuss the aesthetics of sport I shall start with some metaphysical considerations: instead of using the notion of essence (definition of sport, understood as a set of necessary and sufficient conditions, I shall try to base these considerations on the notion of the nature of sport. In my understanding, the nature of sport is a very basic phenomenon that lies at the origin and shapes the history of sport. It is a technology of training and mastering physical skills valued for themselves. Now, the aesthetic dimension of sport is based on the technically valuable qualities of sports, which are the consecutive properties of sport. Such qualities are present in all types of sport, not only in the so-called ‘aesthetic sports’ (Best or ‘performances’ (Suits. Finally, I advance a thesis that although sport is not a form of art, its aesthetic dimension is closer to the nature of sport than its ethical dimension.
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Sports-related Concussion in Children and Adolescents.
Refakis, Christian A; Turner, Christian D; Cahill, Patrick J
2017-06-01
Concussions are becoming increasingly important to manage properly as sports participation continues to rise. Repeated injuries occurring before the brain has had a chance to recover from an initial insult are particularly dangerous and must be prevented. Although much national media attention has been devoted to concussions in professional sports, it is important to appreciate that athletes in any age group, children and adolescents in particular, are at risk of sports-related concussion. It is crucial to remove an athlete from play any time concussion is suspected. Once removed from play, recovery then begins with a period of cognitive and physical rest, followed by a gradual return to cognitive and athletic activities as symptoms resolve. Children and adolescents pose a unique challenge to the clinician managing their recovery, as the physical and cognitive rest periods required often involve time away from school and sports, which can be academically detrimental and socially isolating. Recently developed sideline assessment tools have greatly aided the urgent sideline assessment of an athlete suspected of having a concussion. In this article, a brief review of current guidelines is presented in tandem with the authors' preferred treatment of concussion.
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Transmitting Sport Values: The Importance of Parental Involvement in Children’s Sport Activity
Directory of Open Access Journals (Sweden)
Francesca Danioni
2017-03-01
Full Text Available The transmission of positive values between parents and children is generally considered to be the hallmark of successful socialization. As this issue has been widely discussed but surprisingly little researched - especially with reference to core sport values - in this study we aimed to: 1 analyze adolescent athletes’ acceptance of the sport values their parents want to transmit to them (i.e., parental socialization values and 2 examine the relationship between parental involvement in children’s sportive activity and adolescents’ acceptance of their parents’ socialization values. One hundred and seventy-two Italian adolescents (48.3% male, 51.7% female who regularly practice team sports were asked to fill out a questionnaire which included the Youth Sport Values Questionnaire – 2 and the Parental Involvement in Sport Questionnaire. The dyadic correlations revealed that young athletes are in general willing to accept their parents’ socialization values in regards to sport. Moreover, from the relative weight analysis (a relatively new data analysis strategy, it emerged that parental involvement characterized by praise and understanding is the most important predictor of adolescents’ willingness to accept their parents’ sport values. Implications of these results and further expansion of the study are discussed.
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Kjørmo, Odd; Halvari, Hallgeir
2002-06-01
A model tested among 136 Norwegian Olympic-level athletes yielded two paths related to performance. The first path indicated that self-confidence, modeled as an antecedent of competitive anxiety, is negatively correlated with anxiety. Competitive anxiety in turn is negatively correlated with performance. The second path indicated that group cohesion is positively correlated with group goal-clarity, which in turn is positively correlated with performance. Competitive anxiety mediates the relation between self-confidence and performance, whereas group goal-clarity mediates the relation between group cohesion and performance. Results from multiple regression analyses supported the model in the total sample and among individual sport athletes organized in training groups (n = 100). Among team sport athletes (n = 36), personality and group measures are more strongly intercorrelated than among individual sport athletes, and the relation with performance is more complex for the former group. The interaction of self-confidence and competitive anxiety is related to performance among team sport athletes.
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Burdon, William M; St De Lore, Jef; Prendergast, Michael L
2011-09-01
Within prison settings, the reliance on punishment for controlling inappropriate or noncompliant behavior is self-evident. What is not so evident is the similarity between this reliance on punishment and the use of positive reinforcements to increase desired behaviors. However, seldom do inmates receive positive reinforcement for engaging in prosocial behaviors or, for inmates receiving drug treatment, behaviors that are consistent with or support their recovery. This study provides an overview of the development and implementation of a positive behavioral reinforcement intervention in male and female prison-based drug treatment programs. The active involvement of institutional staff, treatment staff, and inmates enrolled in the treatment programs in the development of the intervention along with the successful branding of the intervention were effective at promoting support and participation. However, these factors may also have ultimately impacted the ability of the randomized design to reliably demonstrate the effectiveness of the intervention.
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National Athletic Trainers' Association Position Statement: Management of Sport Concussion
Broglio, Steven P.; Cantu, Robert C.; Gioia, Gerard A.; Guskiewicz, Kevin M.; Kutcher, Jeffrey; Palm, Michael; McLeod, Tamara C. Valovich
2014-01-01
Objective: To provide athletic trainers, physicians, and other health care professionals with best-practice guidelines for the management of sport-related concussions. Background: An estimated 3.8 million concussions occur each year in the United States as a result of sport and physical activity. Athletic trainers are commonly the first medical providers available onsite to identify and evaluate these injuries. Recommendations: The recommendations for concussion management provided here are based on the most current research and divided into sections on education and prevention, documentation and legal aspects, evaluation and return to play, and other considerations. PMID:24601910
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Girard, Olivier; Amann, Markus; Aughey, Robert; Billaut, François; Bishop, David J; Bourdon, Pitre; Buchheit, Martin; Chapman, Robert; D'Hooghe, Michel; Garvican-Lewis, Laura A; Gore, Christopher J; Millet, Grégoire P; Roach, Gregory D; Sargent, Charli; Saunders, Philo U; Schmidt, Walter; Schumacher, Yorck O
2013-12-01
Despite the limited research on the effects of altitude (or hypoxic) training interventions on team-sport performance, players from all around the world engaged in these sports are now using altitude training more than ever before. In March 2013, an Altitude Training and Team Sports conference was held in Doha, Qatar, to establish a forum of research and practical insights into this rapidly growing field. A round-table meeting in which the panellists engaged in focused discussions concluded this conference. This has resulted in the present position statement, designed to highlight some key issues raised during the debates and to integrate the ideas into a shared conceptual framework. The present signposting document has been developed for use by support teams (coaches, performance scientists, physicians, strength and conditioning staff) and other professionals who have an interest in the practical application of altitude training for team sports. After more than four decades of research, there is still no consensus on the optimal strategies to elicit the best results from altitude training in a team-sport population. However, there are some recommended strategies discussed in this position statement to adopt for improving the acclimatisation process when training/competing at altitude and for potentially enhancing sea-level performance. It is our hope that this information will be intriguing, balanced and, more importantly, stimulating to the point that it promotes constructive discussion and serves as a guide for future research aimed at advancing the bourgeoning body of knowledge in the area of altitude training for team sports.
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Girard, Olivier; Amann, Markus; Aughey, Robert; Billaut, François; Bishop, David J; Bourdon, Pitre; Buchheit, Martin; Chapman, Robert; D'Hooghe, Michel; Garvican-Lewis, Laura A; Gore, Christopher J; Millet, Grégoire P; Roach, Gregory D; Sargent, Charli; Saunders, Philo U; Schmidt, Walter; Schumacher, Yorck O
2013-01-01
Despite the limited research on the effects of altitude (or hypoxic) training interventions on team-sport performance, players from all around the world engaged in these sports are now using altitude training more than ever before. In March 2013, an Altitude Training and Team Sports conference was held in Doha, Qatar, to establish a forum of research and practical insights into this rapidly growing field. A round-table meeting in which the panellists engaged in focused discussions concluded this conference. This has resulted in the present position statement, designed to highlight some key issues raised during the debates and to integrate the ideas into a shared conceptual framework. The present signposting document has been developed for use by support teams (coaches, performance scientists, physicians, strength and conditioning staff) and other professionals who have an interest in the practical application of altitude training for team sports. After more than four decades of research, there is still no consensus on the optimal strategies to elicit the best results from altitude training in a team-sport population. However, there are some recommended strategies discussed in this position statement to adopt for improving the acclimatisation process when training/competing at altitude and for potentially enhancing sea-level performance. It is our hope that this information will be intriguing, balanced and, more importantly, stimulating to the point that it promotes constructive discussion and serves as a guide for future research aimed at advancing the bourgeoning body of knowledge in the area of altitude training for team sports. PMID:24282213
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Physician and Sportsmedicine, 1992
1992-01-01
International Society of Sport Psychology clarifies the psychological benefits of physical activity, noting the positive relationship between physical activity level and mental health. Exercise can reduce anxiety, decrease depression levels, reduce neuroticism and anxiety, reduce stress, and have beneficial emotional effects for both sexes across…
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Ultrasound imaging of sports-related musculoskeletal injuries
International Nuclear Information System (INIS)
Craig, J.G.; Holsbeek, M.T. van; Gauthier, T.P.; Cook, W.J.
2006-01-01
Sports-related injuries of the musculoskeletal system affect millions of individuals every year. Integrating high-frequency Tissue Harmonic Imaging ultrasound with MRI and CT gives the greatest opportunity for diagnosing specific injuries. (orig.)
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Auředník, Jan
2011-01-01
The thesis is devoted to a perceiving sport of top and semi-professional athletes. The perceiving of sport is viewed in terms of sport motives, function, influence and relation. The thesis tries to find out differences between different groups. In this context groups are defined by gender, age and type of sport. In the theoretical part are defined terms necessary for understanding the sport activity and person of athlete. Then are described some topics of research related to an athlete and sp...
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Directory of Open Access Journals (Sweden)
Gordana Furjan Mandic
2013-12-01
Full Text Available Although nutrition and doping are important factors in sports, neither is often investigated in synchronized swimming (Synchro.This study aimed to define and compare Synchro athletes and their coaches on their knowledge of sports nutrition (KSNand knowledge of doping (KD; and to study factors related to KSN and KD in each of these groups. Additionally, the KSNand KD questionnaires were evaluated for their reliability and validity. Altogether, 82 athletes (17.2 ± 1.92 years of age and 28 coaches (30.8 ± 5.26 years of age from Croatia and Serbia were included in the study, with a 99% response rate. The testand retest correlations were 0.94 and 0.90 for the KD and KSN,respectively. Subjects responded equally to 91% queries of the KD and 89% queries of the KSN. Although most of the coache sare highly educated, they declared self-education as the primary source of information about doping and sport-nutrition. Coaches scored higher than their athletes on both questionnaires which defined appropriate discriminative validity of the questionnaires. Variables such as age, sports experience and formal education are positively correlated to KSN and KD scores among athletes. The athletes who scored better on the KD are less prone to doping behavior in the future. These data reinforce the need for systematic educational programs on doping and sports nutrition in synchronized swimming. Special attention should be placed on younger athletes.
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Orofacial Sports – Related Injuries In A Sports Festival In Nigeria ...
African Journals Online (AJOL)
Objective: To determine the aetiology, prevalence and types of oro-facial injuries in a sports festival in Nigeria Materials and Methods: A data form was designed to collect among others, information on age, gender, state of origin, sporting event and types of injury. All consecutive patients who sustained oro-facial sports- ...
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TOURISM EXPENDITURE FOR SPORT ACTIVITIES: THE CASE OF MONTENEGRO
Directory of Open Access Journals (Sweden)
Tatjana Stanovcic
2015-05-01
Full Text Available The tourists’ spending is considered as one of the most important variables in the economic analysis of a destination’s tourism industry. Therefore, the purpose of this study is to examine what type of sport activities influence better sport tourists’ spending in Montenegro. Working on the sample of 197 tourist, our findings indicate that mountain related sport activities such as mountaineering, mountinbiking, rafting and kayaking influence positively sport tourists’ spending during their stay in Montenegro more than water beach sport activities. The contribution of this research is providing several possible directions for both destination and sport managers to improve existing sport activities related to mountain sport as well as to significantly improve beach sport activities in order increase the value and amounts generated by sport activities.
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Cairney, John; Clark, Heather J; Kwan, Matthew Y W; Bruner, Mark; Tamminen, Katherine
2018-04-03
Despite the proliferation of studies examining youth sport participation, there are significant gaps in knowledge regarding the impact of youth sport participation on health and development. These gaps are not new, but have persisted due to limitations with how sport participation is measured. Much of the research to date has measured sport participation as binary (yes/no) or count measures. This has been especially true in survey-based research. Yet, at the same time, research has investigated youths' experiences in sport such as the influence of coaches, teammates, and parents. The ability to measure these experiences is constrained by the need to use a number of measures along with gaps in the content covered in existing measures. We propose to develop and test the Sport Experiences Measure: Children and Youth (SEM:CY) as a population survey-based measure that captures the salient aspects of youths' experience in sport. The SEM:CY will be developed and tested across three phases. Phase I includes qualitative research with members of the sport community and engagement with an expert group to generate and obtain feedback on the initial item pool. In Phase II will recruit two consecutive samples of students from schools to complete the draft measure. Analysis will focus on assessing the items and factor structure of the measure. Factor structure will be assessed first with exploratory factor analysis and then confirmatory factor analysis. In phase III we will test the association between the SEM:CY with a measure of perceived competence, sport anxiety, and positive youth development to assess construct validity. We will also examine whether the structure of the measure varies by age or gender. The SEM:CY measure will provide a meaningful contribution to the measurement and understanding of youth sport participation. The SEM:CY can be used as a stand-alone measure to understand youth experiences in sport programs, or in combination with other health and development
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Equestrian sport-related injuries: a review of current literature.
Havlik, Heather S
2010-01-01
Equestrian sports continue to grow in popularity in the Unites States and abroad, with an estimated 30 million people riding horses annually in the United States alone. Approximately one in five of these riders will suffer a serious injury during their riding career, requiring medical care and potentially hospitalization. Riding carries with it an implicit risk of injury associated with the unpredictability of the animals, the rider's head being positioned approximately 9 feet off the ground, and traveling unrestrained at speeds up to 40 mph. This article reviews common equestrian injuries, epidemiology, mechanism of injury, risk factors, and prevention strategies, with an emphasis on the more dangerous aspects of the sport.
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Sports-related sudden cardiac deaths in the young population of Switzerland.
Asatryan, Babken; Vital, Cristina; Kellerhals, Christoph; Medeiros-Domingo, Argelia; Gräni, Christoph; Trachsel, Lukas D; Schmied, Christian M; Saguner, Ardan M; Eser, Prisca; Herzig, David; Bolliger, Stephan; Michaud, Katarzyna; Wilhelm, Matthias
2017-01-01
In Switzerland, ECG screening was first recommended for national squad athletes in 1998. Since 2001 it has become mandatory in selected high-risk professional sports. Its impact on the rates of sports-related sudden cardiac death (SCD) is unknown. We aimed to study the incidence, causes and time trends of sports-related SCD in comparison to SCD unrelated to exercise in Switzerland. We reviewed all forensic reports of SCDs of the German-speaking region of Switzerland in the age group of 10 to 39 years, occurring between 1999 and 2010. Cases were classified into three categories based on whether or not deaths were associated with sports: no sports (NONE), recreational sports (REC), and competitive sports (COMP). Over the 12-year study period, 349 SCD cases were recorded (mean age 30±7 years, 76.5% male); 297 cases were categorized as NONE, 31 as REC, and 21 as COMP. Incidences of SCD per 100,000 person-years [mean (95% CI)] were the lowest in REC [0.43 (0.35-0.56)], followed by COMP [1.19 (0.89-1.60)] and NONE [2.46 (2.27-2.66)]. In all three categories, coronary artery disease (CAD) with or without acute myocardial infarction (MI) was the most common cause of SCD. Three professional athletes were identified in COMP category which all had SCD due to acute MI. There were no time trends, neither in overall, nor in cause-specific incidences of SCD. The incidence of SCD in young individuals in Switzerland is low, both related and unrelated to sports. In regions, like Switzerland, where CAD is the leading cause of SCD associated with competitions, screening for cardiovascular risk factors in addition to the current PPS recommendations might be indicated to improve detection of silent CAD and further decrease the incidence of SCD.
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International Society of Sports Nutrition Position Stand: beta-hydroxy-beta-methylbutyrate (HMB)
Wilson, Jacob M; Fitschen, Peter J; Campbell, Bill; Wilson, Gabriel J; Zanchi, Nelo; Taylor, Lem; Wilborn, Colin; Kalman, Douglas S; Stout, Jeffrey R; Hoffman, Jay R; Ziegenfuss, Tim N; Lopez, Hector L; Kreider, Richard B; Smith-Ryan, Abbie E; Antonio, Jose
2013-01-01
Abstract Position Statement: The International Society of Sports Nutrition (ISSN) bases the following position stand on a critical analysis of the literature on the use of beta-hydroxy-beta-methylbutyrate (HMB) as a nutritional supplement. The ISSN has concluded the following. 1. HMB can be used to enhance recovery by attenuating exercise induced skeletal muscle damage in trained and untrained populations. 2. If consuming HMB, an athlete will benefit from consuming the supplement in close pro...
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Dodge, Tonya; Lambert, Sharon F
2009-07-01
The present study examined the relationship between participation in sports during adolescence and physical activity and subjective health in young adulthood. A sample of 8,152 (males = 50.8%, females = 49.2%) adolescents from the National Longitudinal Study of Adolescent Health were used. Results of the study showed that participating in an organized sport during adolescence was associated with higher levels of physical activity and better subjective health during young adulthood after controlling for participation in general physical activities (e.g., jogging, biking, skateboarding) during adolescence. Participation in sports during adolescence was associated with more positive self-beliefs 1 year later that, in turn, were associated with higher levels of moderate to vigorous physical activity and better subjective health 6 years later. Results suggest that positive self-beliefs partially mediate the relationship between adolescents' participation in sports and two health outcomes in young adulthood: moderate to vigorous physical activity and subjective health. Findings highlight the utility of youths' participation in organized sports for promoting healthy outcomes. Implications for policy and practice are discussed.
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Position paper: proposal for a core curriculum for a European Sports Cardiology qualification.
Heidbuchel, Hein; Papadakis, Michael; Panhuyzen-Goedkoop, Nicole; Carré, François; Dugmore, Dorian; Mellwig, Klaus-Peter; Rasmusen, Hanne Kruuse; Solberg, Erik E; Borjesson, Mats; Corrado, Domenico; Pelliccia, Antonio; Sharma, Sanjay
2013-10-01
Sports cardiology is a new and rapidly evolving subspecialty. It aims to elucidate the cardiovascular effects of regular exercise and delineate its benefits and risks, so that safe guidance can be provided to all individuals engaging in sports and/or physical activity in order to attain the maximum potential benefit at the lowest possible risk. The European Society of Cardiology (ESC) advocates systematic preparticipation cardiovascular screening in an effort to identify competitive athletes at risk of exercise-related cardiovascular events and sudden cardiac death. However, the implementation of preparticipation screening is hindered because of lack of structured training and as a result lack of sufficient expertise in the field of sports cardiology. In 2008 the European Society of Cardiology published a core curriculum for the general cardiologist, in which sports cardiology was incorporated within the topic 'Rehabilitation and Exercise Physiology'. However, the exponential rise in knowledge and the growing demand for expertise in the field of sports cardiology dictates the need to systematically structure the knowledge base of sports cardiology into a detailed curriculum. We envisage that the curriculum would facilitate more uniform training and guideline implementation throughout Europe, and safeguard that evaluation and guidance of competitive athletes or individuals who wish to engage in leisure-time sports activities is performed by physicians with expertise in the field. The current manuscript provides a comprehensive curriculum for sports cardiology, which may serve as a framework upon which universities and national and international health authorities will develop the training, evaluation and accreditation in sports cardiology.
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Vestibular and balance issues following sport-related concussion.
Valovich McLeod, Tamara C; Hale, Troy D
2015-01-01
To review relevant literature regarding the effect of concussion on vestibular function, impairments, assessments and management strategies. REASONING: Dizziness and balance impairments are common following sport-related concussion. Recommendations regarding the management of sport-related concussion suggest including tests of balance within the multifactorial assessment paradigm for concussive injuries. The literature was searched for guidelines and original studies related to vestibular impairments following concussion, oculomotor and balance assessments and treatment or rehabilitation of vestibular impairments. The databases searched included Medline, CINAHL, Sport Discus and the Cochrane Database of Systematic Reviews through October 2013. Dizziness following concussion occurs in ∼67-77% of cases and has been implicated as a risk factor for a prolonged recovery. Balance impairments also occur after concussion and last 3-10 days post-injury. Assessments of balance can be done using both clinical and instrumented measures with success. Vestibular rehabilitation has been shown to improve outcomes in patients with vestibular impairments, with one study demonstrating success in decreasing symptoms and increasing function following concussion. Best practices suggest that the assessment of vestibular function through cranial nerve, oculomotor and balance assessments are an important aspect of concussion management. Future studies should evaluate the effectiveness of vestibular rehabilitation for improving patient outcomes.
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Sport and team differences on baseline measures of sport-related concussion.
Zimmer, Adam; Piecora, Kyle; Schuster, Danielle; Webbe, Frank
2013-01-01
With the advent of the National Collegiate Athletic Association's (NCAA's) mandating the presence and practice of concussion-management plans in collegiate athletic programs, institutions will consider potential approaches for concussion management, including both baseline and normative comparison approaches. To examine sport and team differences in baseline performance on a computer-based neurocognitive measure and 2 standard sideline measures of cognition and balance and to determine the potential effect of premorbid factors sex and height on baseline performance. Cross-sectional study. University laboratory. A total of 437 NCAA Division II student-athletes (males = 273, females = 164; age = 19.61 ± 1.64 years, height = 69.89 ± 4.04 inches [177.52 ± 10.26 cm]) were recruited during mandatory preseason testing conducted in a concussion-management program. The computerized Concussion Resolution Index (CRI), the Standardized Assessment of Concussion (Form A; SAC), and the Balance Error Scoring System (BESS). Players on the men's basketball team tended to perform worse on the baseline measures, whereas soccer players tended to perform better. We found a difference in total BESS scores between these sports (P = .002). We saw a difference between sports on the hard-surface portion of the BESS (F6,347 = 3.33, P = .003, ηp(2) = 0.05). No sport, team, or sex differences were found with SAC scores (P > .05). We noted differences between sports and teams in the CRI indices, with basketball, particularly the men's team, performing worse than soccer (P sport differences, height was a covariate for the team (F1,385 = 5.109, P = .02, ηp(2) = 0.013) and sport (F1,326 = 11.212, P = .001, ηp(2) = 0.033) analyses, but the interaction of sex and sport on CRI indices was not significant in any test (P > .05). Given that differences in neurocognitive functioning and performance among sports and teams exist, the comparison of posttraumatic and baseline assessment may lead to more
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Acute type a aortic dissection associated with a sporting activity.
Itagaki, Ryo; Kimura, Naoyuki; Itoh, Satoshi; Yamaguchi, Atsushi; Adachi, Hideo
2017-09-01
To investigate the clinical characteristics of acute type A aortic dissection (ATAAD) occurring during a sporting activity. The subjects of this study were 615 patients who underwent surgery for ATAAD between 1990 and 2015. The patients were divided into two groups according to whether the ATAAD was associated with a sporting activity (sports group: n = 25, mean age 62.3 years; non-sports group: n = 590, mean age 63.7 years). Specific activity was assessed in the sports group, and the characteristics and outcomes were compared between the groups. The sports group accounted for 5% of the patients with daytime onset ATAAD (25/479). The most common sport was golf (n = 8), followed by swimming (n = 4), cycling (n = 4), and weight lifting (n = 3). The average diameter of the ascending aorta on preoperative computed tomography was 4.8 cm. The dissection characteristics of the sports group included DeBakey type I (n = 23, 92%) and malperfusion (n = 9, 36%), which were similar to those of the non-sports group. The 30-day mortality rates were 16% (4/25) for the sports group and 8% (49/590) for the non-sports group (P = 0.33). The most common sport associated with ATAAD was golf, followed by swimming cycling, and weight lifting. The findings of this study reinforce that sports-related aortic dissection is not a unique clinical condition of young syndromic patients, but can occur in all age groups.
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Sports-related and gender differences on neuropsychological measures of frontal lobe functioning.
Ryan, Jeanne P; Atkinson, Thomas M; Dunham, Katherine T
2004-01-01
To determine similarities and differences in the performance of female and male athletes on neuropsychological measures of frontal lobe functioning. A cross-sectional study of male and female college-aged athletes involved in one of the following sports: hockey, basketball, softball, lacrosse, soccer, swimming, and track. Division III college. A total of 262 athletes (male, n=157; female, n=105) participated in the study. Controlled Oral Word Association (letters F, A, S), Cognitive Assessment System (Planned Codes, Planned Connections, Number Detection), and WAIS-R-NI Vocabulary were administered to all athletes. MANCOVA was performed with gender and sport as fixed factors. Female athletes displayed faster and more accurate performance on perceptual-motor tasks (Pgender and sport. Gender- and sport-specific performances on perceptual-motor and verbal fluency tasks were found. Adding cognitive components to base functions eliminates gender- and sports-related distinctions, suggesting that existing differences are related to basic, fundamental skills, which are inherent and practiced within the respective sport. Understanding the differences and similarities across sports and gender on various neurocognitive measures is relevant for determining group differences in studies examining the consequences of mild traumatic brain injury among athletes.
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Diagnostic imaging of sport related musculoskeletal system injuries
International Nuclear Information System (INIS)
Fernandes, Artur da Rocha Correa; Schivartche, Vivian
1998-01-01
The authors review the literature about musculoskeletal injuries related to sports, emphasizing the main findings with different imaging methods. They also present the specific characteristics of each method. (author)
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Smiet, E.; Van Dierendonck, M. C.; Sleutjens, J.; Menheere, P. P C A; van Breda, E.; de Boer, D.; Back, W.; Wijnberg, I. D.; Van Der Kolk, J. H.
2014-01-01
Different head-and-neck positions (HNPs) are discussed in relation to potential welfare issues. To evaluate the effect on welfare, seven Royal Dutch Sport horses were studied in five predetermined HNPs: (1) unrestrained (HNP1); (2) neck raised, bridge of nose around the vertical (HNP2); (3) neck
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Reed, Gregory K; Piazza, Cathleen C; Patel, Meeta R; Layer, Stacy A; Bachmeyer, Melanie H; Bethke, Stephanie D; Gutshall, Katharine A
2004-01-01
In the current investigation, we evaluated the relative effects of noncontingent reinforcement (NCR), escape extinction, and a combination of NCR and escape extinction as treatment for the feeding problems exhibited by 4 children. For each participant, consumption increased only when escape extinction was implemented, independent of whether NCR was present or absent. These results were consistent with prior research suggesting that positive reinforcement alone is insufficient for increasing consumption, and that escape extinction often is necessary to increase and maintain food acceptance. However, NCR appeared to decrease inappropriate behavior for some participants.
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Schulz, Daniela; Henn, Fritz A; Petri, David; Huston, Joseph P
2016-08-04
Principles of negative reinforcement learning may play a critical role in the etiology and treatment of depression. We examined the integrity of positive reinforcement learning in congenitally helpless (cH) rats, an animal model of depression, using a random ratio schedule and a devaluation-extinction procedure. Furthermore, we tested whether an antidepressant dose of the monoamine oxidase (MAO)-B inhibitor deprenyl would reverse any deficits in positive reinforcement learning. We found that cH rats (n=9) were impaired in the acquisition of even simple operant contingencies, such as a fixed interval (FI) 20 schedule. cH rats exhibited no apparent deficits in appetite or reward sensitivity. They reacted to the devaluation of food in a manner consistent with a dose-response relationship. Reinforcer motivation as assessed by lever pressing across sessions with progressively decreasing reward probabilities was highest in congenitally non-helpless (cNH, n=10) rats as long as the reward probabilities remained relatively high. cNH compared to wild-type (n=10) rats were also more resistant to extinction across sessions. Compared to saline (n=5), deprenyl (n=5) reduced the duration of immobility of cH rats in the forced swimming test, indicative of antidepressant effects, but did not restore any deficits in the acquisition of a FI 20 schedule. We conclude that positive reinforcement learning was impaired in rats bred for helplessness, possibly due to motivational impairments but not deficits in reward sensitivity, and that deprenyl exerted antidepressant effects but did not reverse the deficits in positive reinforcement learning. Copyright © 2016 IBRO. Published by Elsevier Ltd. All rights reserved.
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Sports-related genitourinary injuries presenting to United States emergency departments.
Bagga, Herman S; Fisher, Patrick B; Tasian, Gregory E; Blaschko, Sarah D; McCulloch, Charles E; McAninch, Jack W; Breyer, Benjamin N
2015-01-01
To describe epidemiologic features of sports-related genitourinary (GU) injuries and determine patient cohorts and particular sporting activities associated with increased GU injury risk. The National Electronic Injury Surveillance System, a data set validated to provide a probability sample of injury-related US emergency department (ED) presentations, was analyzed to characterize GU injuries between 2002 and 2010. A total of 13,851 observations were analyzed to derive national estimates. Between 2002 and 2010, an estimated 137,525 individuals (95% confidence interval, 104,490-170,620) presented to US EDs with GU injuries sustained during sporting activities. Nearly three-quarters of injuries occurred in the pediatric population. The most common product involved was a bicycle, representing approximately one-third of injuries in both adult and pediatric populations. Injuries related to team sports such as football, baseball or softball, basketball, and soccer were also common, particularly among boys where they represented a combined third of all injuries. Eighty-nine percent of all patients were evaluated and treated in the ED without inpatient admission. The large majority of injuries involved the external genitalia (60%), and significant injuries of paired GU organs (kidneys and testicles) requiring inpatient admission were rare (8.5%). Sports-related GU injuries are most commonly sustained during the use of a bicycle. However, there are other associated activities with identifiable high-risk cohorts, products, and situations. Consumers, practitioners, and injury-prevention experts can use our epidemiologic data to prioritize and develop strategies aimed at the prevention and limitation of such injuries, particularly when counseling at-risk cohorts, such as those with solitary kidneys or testicles. Copyright © 2015. Published by Elsevier Inc.
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What are the trends and demographics in sports-related pediatric spinal cord injuries?
Nadarajah, Vidushan; Jauregui, Julio J; Perfetti, Dean; Shasti, Mark; Koh, Eugene Y; Henn, Ralph Frank
2018-02-01
Pediatric spinal cord injury (PSCI) is a devastating injury that can cause significant long-term consequences. The purpose of this study is to calculate and report the prevalence of PSCI, identify risk factors for sports-related PSCI, and evaluate associated factors. The data sets of the Healthcare Cost and Utilization Project (HCUP) Kids' Inpatient Database (KID) from 2000-2012 were analyzed using ICD-9-CM external cause of injury codes to identify the mechanism of injury contributing to PSCI hospitalization. We then extracted demographic data on each admission including age, gender, race, and year of admission. We further stratified the data by sports-related cases of injury. Multivariate logistic regression analyses were used to identify independent risk factors. Of our study population, 0.8% had a documented diagnosis of spinal cord injury (SCI). The most common documented external cause of injury code was motor vehicle accidents, representing roughly half of all cases in patients 0-9 years-old (p = 0.001). PSCI due to sports as an external cause of injury was more prevalent in patients 10-17 years old, and was especially prevalent in the 10-13 year-old age category in which sports-related PSCI reached a high of 25.6%. Risk factors for traumatic PSCI after a sports-related external cause included being of older age, male, and white. The prevalence of SCI increased with age. Given the popularity of youth sports in the United States, parents and sports officials should be aware of the increased risk of sports-related PSCI among patients 10-17 years old. Level III, retrospective cohort study.
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Psychologic stress related to injury and impact on sport performance.
Nippert, Angela H; Smith, Aynsley M
2008-05-01
Injury rates are high among children and adolescent athletes. Psychosocial stressors, such as personality, history of stressors, and life event stress can influence injury occurrence. After injury, those same factors plus athletic identity, self-esteem, and significant others-such as parents, coaches, and teammates-can affect injury response, recovery and subsequent sport performance. Goal setting, positive self-talk, attribution theory, and relaxation or mental imagery are psychologic interventions that can help injured athletes cope with psychosocial stressors. Medical professionals should be aware of the potential influence that psychosocial stressors and psychologic interventions can have on injury occurrence, injury recovery, and sport performance.
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Ellis, Michael J; McDonald, Patrick J; Cordingley, Dean; Mansouri, Behzad; Essig, Marco; Ritchie, Lesley
2016-04-01
The decision to advise an athlete to retire from sports following sports-related concussion (SRC) remains a persistent challenge for physicians. In the absence of strong empirical evidence to support recommendations, clinical decision making must be individualized and should involve a multidisciplinary team of experts in concussion and traumatic brain injury. Although previous authors have advocated for a more conservative approach to these issues in child and adolescent athletes, there are few reports outlining considerations for this process among this unique population. Here, the authors use multiple case illustrations to discuss 3 subgroups of clinical considerations for sports retirement among pediatric SRC patients including the following: those with structural brain abnormalities identified on neuroimaging, those presenting with focal neurological deficits and abnormalities on physical examination, and those in whom the cumulative or prolonged effects of concussion are suspected or demonstrated. The authors' evolving multidisciplinary institutional approach to return-to-play and retirement decision making in pediatric SRC is also presented.
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Al-Arfaj, Ibrahim; Al-Shammari, Ahmad; Al-Subai, Turki; Al-Absi, Ghanim; AlJaffari, Mohammad; Al-Kadi, Ahmad; El Tantawi, Maha; Al-Ansari, Asim
2016-01-01
The risk of dental trauma may increase during sports participation. The purpose of this study was to evaluate the knowledge, attitude, and practices of sports participants concerning sports-related dental trauma and associated emergency/preventive practices. The study included 124 male subjects over 18 years of age participating in contact and non-contact sports in three clubs in the Eastern Province, Saudi Arabia. A questionnaire was used to assess past experience of dental trauma related to...
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Pullen, Emma; Malcolm, Dominic; Wheeler, Patrick
2018-06-07
Regular participation in sport, exercise and physical activity is associated with positive health outcomes and form a mainstay of British public health policies. However, regular participation in sport and exercise can result in sport related injury (SRI) which, in turn, is a key cause of exercise cessation. The integration of Sport and Exercise Medicine (SEM) in the English National Health Service (NHS) aims to provide a specialist service for public populations and thus reduce the impact of SRI on exercise cessation and associated negative health outcomes. More broadly it aims to both support physical activity health promotion policies and improve healthcare organisations efficiencies through providing the most condition-appropriate treatment. This qualitative interview study examines patients' (n=19) experiences of accessing and receiving SEM treatment within the English NHS. The research demonstrates that referral pathways into SEM were often prolonged, characterised by multiple General Practitioner (GP) visits and referrals into other musculoskeletal services, demonstrating an inefficient use of healthcare resources. Prolonged pathways fostered only limited recovery back to previous physical activity levels and other negative health behaviours, yet on accessing the SEM clinic, patients experienced progressive rehabilitation back into sport and exercise participation. This study highlights the importance of more fully integrating SEM services into public healthcare as a way of improving the organisational capacity of healthcare in treating SRI and ensuring that citizens comply with state interventions which orchestrate health management through raising physical activity levels across the population.
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Participants' sports characteristics related to heavy episodic drinking among French students.
Martha, C; Grélot, L; Peretti-Watel, P
2009-03-01
The relationships between involvement in sports and alcohol consumption appear to be complex in the alcohol literature. In this study we aimed to examine this link among French students, taking into account their sports characteristics. We also examined variations in alcohol use among sport sciences students between 2002 and 2006, and the difference in alcohol use and heavy episodic drinking among sport sciences, law and pharmacy students. repeated survey; cross-sectional study; self-questionnaire survey; French (south-east France) sport sciences (n=693), law (n=325) and pharmacy (n=338) students (females=58%). In 2002, 38% of the male sport sciences students reported repeated heavy episodic drinking, and this proportion has risen to 48% in 2006 (psport sciences students were less likely to report repeated heavy episodic drinking (part were negatively related to heavy episodic drinking (psport in a formal context, team sports, and competitive participation at a departmental or regional level represented risk factors (psport was a protective factor among females (psport practised to examine the link between sport participation and alcohol consumption. The normative context of peer socialization among competitive and team sports participants seemed to play a role in alcohol use. Further studies are needed to confirm the role of this putative factor.
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Which factors are important for effectiveness of sport- and health-related apps?
Dallinga, Joan; Janssen, Mark; van der Werf, Jet; Vos, Steven; Deutekom-Baart de la Faille, Marije
2017-01-01
Which factors are important for effectiveness of sport- and health-related apps? Results of focus groups with experts. Dallinga, J, van der Werf, J , Janssen, M, Vos, S, Deutekom-Baart de la Faille, M. A huge amount of sport- and health-related smartphone applications (apps) is available in the app
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Sports Injury-Related Fingers and Thumb Deformity Due to Tendon or Ligament Rupture
Directory of Open Access Journals (Sweden)
Rong-Jie Bai
2018-01-01
Conclusions: Sports injury-related fingers and thumb deformity are relatively common. MRI is an accurate method for evaluation of the anatomy and pathologic conditions of the fingers and thumb. It is a useful tool for accurate diagnosis of the sports-related ligaments and tendons injuries in hand.
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DEFF Research Database (Denmark)
Michel, Alexander; Solgaard, Anders Ole Stubbe; Pease, Bradley Justin
2013-01-01
Cracks in covering concrete are known to hasten initiation of steel corrosion in reinforced concrete structures. To minimise the impact of cracks on the deterioration of reinforced concrete structures, current approaches in (inter)national design codes often limit the concrete surface crack width....... Recent investigations however, indicate that the concrete-reinforcement interfacial condition is a more fundamental criterion related to reinforcement corrosion. This work investigates the relation between macroscopic damage at the concrete-steel interface and corrosion initiation of reinforcement...... embedded in plain and fibre reinforced concrete. Comparisons of experimental and numerical results indicate a strong correlation between corrosion initiation and interfacial condition....
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Marketing Food and Beverages to Youth Through Sports.
Bragg, Marie A; Roberto, Christina A; Harris, Jennifer L; Brownell, Kelly D; Elbel, Brian
2018-01-01
Food and beverage marketing has been identified as a major driver of obesity yet sports sponsorship remains common practice and represents millions of dollars in advertising expenditures. Research shows that food and beverage products associated with sports (e.g., M&M's with National Association for Stock Car Auto Racing logo) generate positive feelings, excitement, and a positive self-image among adults and children. Despite this, self-regulatory pledges made by food companies to limit exposure of unhealthy products to children have not improved the nutritional quality of foods marketed to children. We reviewed the literature about sports-related food marketing, including food and beverage companies' use of sports sponsorships, athlete endorsements, and sports video games. This review demonstrates that sports sponsorships with food and beverage companies often promote energy-dense, nutrient-poor products and while many of these promotions do not explicitly target youth, sports-related marketing affects food perceptions and preferences among youth. Furthermore, endorsement of unhealthy products by professional athletes sends mixed messages; although athletes may promote physical activity, they simultaneously encourage consumption of unhealthy products that can lead to negative health outcomes. We argue that more athletes and sports organizations should stop promoting unhealthy foods and beverages and work with health experts to encourage healthy eating habits among youth. Copyright © 2017 Society for Adolescent Health and Medicine. Published by Elsevier Inc. All rights reserved.
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2014-01-01
Background Various head and neck positions in sport horses are significant as they can interfere with upper airway flow mechanics during exercise. Until now, research has focused on subjectively described head and neck positions. The objective of this study was to develop an objective, reproducible method for quantifying head and neck positions accurately. Results Determining the angle between the ridge of the nose and the horizontal plane (ground angle) together with the angle between the ridge of nose and the line connecting the neck and the withers (withers angle) has provided values that allow precise identification of three preselected head and neck positions for performing sport horses. The pharyngeal diameter, determined on lateral radiographs of 35 horses, differed significantly between the established flexed position and the remaining two head and neck positions (extended and neutral). There was a significant correlation between the pharyngeal diameter and the ground angle (Spearman’s rank correlation coefficient −0.769, p horses. The ground angle and the withers angle show significant correlation with the measured pharyngeal diameter in resting horses. Hence, these angles provide an appropriate method for assessing the degree of head and neck flexion. Further research is required to examine the influence of increasing head and neck flexion and the related pharyngeal diameter on upper airway function in exercising horses. PMID:24886564
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Belke, Terry W; Pierce, W David
2016-12-01
Rats responded on a multiple variable-ratio (VR) 10 VR 10 schedule of reinforcement in which lever pressing was reinforced by the opportunity to run in a wheel for 30s in both the changed (manipulated) and unchanged components. To generate positive contrast, the schedule of reinforcement in the changed component was shifted to extinction; to generate negative contrast, the schedule was shifted to VR 3. With the shift to extinction in the changed component, wheel-running and local lever-pressing rates increased in the unchanged component, a result supporting positive contrast; however, the shift to a VR 3 schedule in the changed component showed no evidence of negative contrast in the unaltered setting, only wheel running decreased in the unchanged component. Changes in wheel-running rates across components were consistent in showing a compensation effect, depending on whether the schedule manipulation increased or decreased opportunities for wheel running in the changed component. These findings are the first to demonstrate positive behavioral contrast on a multiple schedule with wheel running as reinforcement in both components. Copyright © 2016 Elsevier B.V. All rights reserved.
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The Sport Nexus and Gender Injustice
Directory of Open Access Journals (Sweden)
Ann Travers
2009-01-01
Full Text Available Male-dominated and sex segregated elite professional and amateur sport1 in North America constitutes a "sport nexus" (Burstyn, 1999; Heywood & Dworkin, 2003 that combines economic and cultural influence to reinforce and perpetuate gender injustice. The sport nexus is an androcentric sex-segregated commercially powerful set of institutions that is highly visible and at the same time almost completely taken for granted to the extent that its anti-democratic impetus goes virtually unnoticed. The sport nexus’s hegemonic role in defining sporting norms (Coakley & Donnelly, 2004 means that its role in shaping lower level amateur and recreational sporting institutions and cultures is highly significant. Fraser (2007 defines gender justice, and hence democracy, in terms of "participatory parity," that is, material and cultural equality for women. The sport nexus itself is characterized by highly gendered occupational segregation (Coventry, 2004. It further contributes to gender injustice, homophobia and transphobia by promoting the ideology of the two sex system (Fausto-Sterling, 2000 and gendering citizenship as fundamentally male (Burstyn, 1999. Feminist strategies for sport reformation attempt to reduce or eradicate the role of the sport nexus in legitimating and perpetuating gender injustice. In this article I consider the potential of these strategies and conclude with a set of recommendations for transforming organized sport at both elite and recreational levels.
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The Sport Nexus and Gender Injustice
Directory of Open Access Journals (Sweden)
Ann Travers
2008-12-01
Full Text Available Male-dominated and sex segregated elite professional and amateur sport1 in North America constitutes a "sport nexus" (Burstyn, 1999; Heywood & Dworkin, 2003 that combines economic and cultural influence to reinforce and perpetuate gender injustice. The sport nexus is an androcentric sex-segregated commercially powerful set of institutions that is highly visible and at the same time almost completely taken for granted to the extent that its anti-democratic impetus goes virtually unnoticed. The sport nexus’s hegemonic role in defining sporting norms (Coakley & Donnelly, 2004 means that its role in shaping lower level amateur and recreational sporting institutions and cultures is highly significant. Fraser (2007 defines gender justice, and hence democracy, in terms of "participatory parity," that is, material and cultural equality for women. The sport nexus itself is characterized by highly gendered occupational segregation (Coventry, 2004. It further contributes to gender injustice, homophobia and transphobia by promoting the ideology of the two sex system (Fausto-Sterling, 2000 and gendering citizenship as fundamentally male (Burstyn, 1999. Feminist strategies for sport reformation attempt to reduce or eradicate the role of the sport nexus in legitimating and perpetuating gender injustice. In this article I consider the potential of these strategies and conclude with a set of recommendations for transforming organized sport at both elite and recreational levels.
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High-grade renal injuries are often isolated in sports-related trauma
Patel, Darshan P.; Redshaw, Jeffrey D.; Breyer, Benjamin N.; Smith, Thomas G.; Erickson, Bradley A.; Majercik, Sarah D.; Gaither, Thomas W.; Craig, James R.; Gardner, Scott; Presson, Angela P.; Zhang, Chong; Hotaling, James M.; Brant, William O.; Myers, Jeremy B.
2015-01-01
© 2015 Elsevier Ltd. All rights reserved. Introduction: Most high-grade renal injuries (American Association for Surgery of Trauma (AAST) grades III-V) result from motor vehicle collisions associated with numerous concomitant injuries. Sports-related blunt renal injury tends to have a different mechanism, a solitary blow to the flank. We hypothesized that high-grade renal injury is often isolated in sports-related renal trauma. Material and methods: We identified patients with AAST grades III...
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Halna du Fretay, X; Akoudad, H; Nejjari, M; Benamer, H
2013-12-01
Determination of clinical and angiographic characteristics of myocardial infarctions related to sport. Retrospective study of acute coronary syndromes with ST elevation related to sport treated with interventional cardiology from 2006 to 2013. Sixteen patients were included. They are mostly men (15/16), aged 24-65 years (over 35 years old in 13 cases) with few cardiovascular risk factors, most frequently heredity or smoking. Myocardial infarctions usually occur during the practice of sports (13/16), with serious rhythmic complications in three of the cases. On angiography, most patients have single vessel disease (12/16). Myocardial infarction related to sports affects a male population aged over 35 years old with few cardiovascular risk factors, most often single vessel disease, making the preventative screening uneasy. Other studies investigating larger populations, assessing previous clinical events (symptoms, results of stress tests), evaluating the impact of competition and integrating sudden deaths would improve the screening and the treatment of sport-related myocardial infarctions. Copyright © 2013 Elsevier Masson SAS. All rights reserved.
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Guerriero, Réjean M; Proctor, Mark R; Mannix, Rebekah; Meehan, William P
2012-12-01
Sport-related concussion affects athletes at every level of participation. The short and long-term effects of concussions that occur during childhood and adolescence are not fully understood. The purpose of this review is to describe the current burden of disease, current practice patterns and current recommendations for the assessment and management of sport-related concussions sustained by United States high school athletes. Millions of high school students participate in organized sports in the United States. Current estimates suggest that, across all sports, approximately 2.5 concussions occur for every 10 000 athletic exposures, in which an athletic exposure is defined as one athlete participating in one game or practice. At schools that employ at least one athletic trainer, most high school athletes who sustain sport-related concussions will be cared for by athletic trainers and primary care physicians. Approximately 40% will undergo computerized neurocognitive assessment. The number of high school athletes being diagnosed with sport-related concussions is rising. American football has the highest number of concussions in high school with girls' soccer having the second highest total number. Fortunately, coaches are becoming increasingly aware of these injuries and return-to-play guidelines are being implemented.
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What are the real risks of sport-related concussion, and are they modifiable?
Randolph, Christopher; Kirkwood, Michael W
2009-07-01
Over the past two decades, the management of sport-related concussion has been the topic of increased attention in the scientific literature and in the popular media. Despite a proliferation of competing guidelines for concussion management, the widespread use of neuropsychological "baseline" testing designed to monitor postinjury recovery, and several prospective controlled studies of the natural history of concussion, there has been virtually no attempt to quantify the risks associated with sport-related concussion or to determine whether these risks are modifiable via management strategies. Using American football as a model, the short- and long-term risks of sport-related concussion are reviewed. It is concluded that serious short-term consequences of sport-related concussion are extremely rare and unlikely to be significantly modified via management strategies that rely on baseline testing. Other less serious short-term adverse outcomes are also quite rare, transient, and not likely to be altered by specific management guidelines. The long-term consequences of multiple sport-related head trauma remain unclear but are potentially of greater public health concern and should be the focus of increased research. Based on available evidence, there is little rationale for the use of rigid strategies or guidelines in the place of individual clinical decision-making in the management of these injuries.
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Kiechle, Karin; Bazarian, Jeffrey J; Merchant-Borna, Kian; Stoecklein, Veit; Rozen, Eric; Blyth, Brian; Huang, Jason H; Dayawansa, Samantha; Kanz, Karl; Biberthaler, Peter
2014-01-01
The on-field diagnosis of sports-related concussion (SRC) is complicated by the lack of an accurate and objective marker of brain injury. To compare subject-specific changes in the astroglial protein, S100B, before and after SRC among collegiate and semi-professional contact sport athletes, and compare these changes to differences in S100B before and after non-contact exertion. Longitudinal cohort study. From 2009-2011, we performed a prospective study of athletes from Munich, Germany, and Rochester, New York, USA. Serum S100B was measured in all SRC athletes at pre-season baseline, within 3 hours of injury, and at days 2, 3 and 7 post-SRC. Among a subset of athletes, S100B was measured after non-contact exertion but before injury. All samples were collected identically and analyzed using an automated electrochemiluminescent assay to quantify serum S100B levels. Forty-six athletes (30 Munich, 16 Rochester) underwent baseline testing. Thirty underwent additional post-exertion S100B testing. Twenty-two athletes (16 Rochester, 6 Munich) sustained a SRC, and 17 had S100B testing within 3 hours post-injury. The mean 3-hour post-SRC S100B was significantly higher than pre-season baseline (0.099±0.008 µg/L vs. 0.058±0.006 µg/L, p = 0.0002). Mean post-exertion S100B was not significantly different than the preseason baseline. S100B levels at post-injury days 2, 3 and 7 were significantly lower than the 3-hour level, and not different than baseline. Both the absolute change and proportional increase in S100B 3-hour post-injury were accurate discriminators of SRC from non-contact exertion without SRC (AUC 0.772 and 0.904, respectively). A 3-hour post-concussion S100B >0.122 µg/L and a proportional S100B increase of >45.9% over baseline were both 96.7% specific for SRC. Relative and absolute increases in serum S100B can accurately distinguish SRC from sports-related exertion, and may be a useful adjunct to the diagnosis of SRC.
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Directory of Open Access Journals (Sweden)
Karin Kiechle
Full Text Available The on-field diagnosis of sports-related concussion (SRC is complicated by the lack of an accurate and objective marker of brain injury.To compare subject-specific changes in the astroglial protein, S100B, before and after SRC among collegiate and semi-professional contact sport athletes, and compare these changes to differences in S100B before and after non-contact exertion.Longitudinal cohort study.From 2009-2011, we performed a prospective study of athletes from Munich, Germany, and Rochester, New York, USA. Serum S100B was measured in all SRC athletes at pre-season baseline, within 3 hours of injury, and at days 2, 3 and 7 post-SRC. Among a subset of athletes, S100B was measured after non-contact exertion but before injury. All samples were collected identically and analyzed using an automated electrochemiluminescent assay to quantify serum S100B levels.Forty-six athletes (30 Munich, 16 Rochester underwent baseline testing. Thirty underwent additional post-exertion S100B testing. Twenty-two athletes (16 Rochester, 6 Munich sustained a SRC, and 17 had S100B testing within 3 hours post-injury. The mean 3-hour post-SRC S100B was significantly higher than pre-season baseline (0.099±0.008 µg/L vs. 0.058±0.006 µg/L, p = 0.0002. Mean post-exertion S100B was not significantly different than the preseason baseline. S100B levels at post-injury days 2, 3 and 7 were significantly lower than the 3-hour level, and not different than baseline. Both the absolute change and proportional increase in S100B 3-hour post-injury were accurate discriminators of SRC from non-contact exertion without SRC (AUC 0.772 and 0.904, respectively. A 3-hour post-concussion S100B >0.122 µg/L and a proportional S100B increase of >45.9% over baseline were both 96.7% specific for SRC.Relative and absolute increases in serum S100B can accurately distinguish SRC from sports-related exertion, and may be a useful adjunct to the diagnosis of SRC.
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Directory of Open Access Journals (Sweden)
Tóth Teodor
2014-03-01
Full Text Available The submitted article deals with the evaluation of the somatotype of persons and determination of a suitable somatotype for selected sports. In the introduction the method for determining and evaluating a somatotype according to Carter and Heath is characterised. The processes used for calculating the individual components - endomorphy, mesomorphy, ectomorphy - are presented as well as a description of these elements. The calculated components are subsequently put into a somatograph. The evaluation of a somatotype is of great benefit and offers a guideline with the selection of sporting activities; it subsequently helps assign athletes into a suitable position where they will be able to best develop their talents in view of their bodily construction. In this work two types of sports are evaluated - basketball and bodybuilding. With each sport the measurements which give the prerequisites for the given sport are presented. The selection of the presented sports was made with regard to the different requirements and demands in the scope of bodily constitution. The aim of the presented paper is to assess physical parameters of subjects groups in relation to selected sports (basketball and bodybuilding. Based on the body constitution to determine the conditions for developing the physical condition and success in the appointed sports. Another objective is to compare the rating form and equation methods for somatotype determination. The sample consist 32 subjects with age between 22-28 years of both sexes, who are dedicated to basketball, or bodybuilding at amateur level.
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Deelen, Ineke; Jansen, Marijke; Dogterom, Nico J; Kamphuis, Carlijn B M; Ettema, Dick
2017-12-11
The number of sports facilities, sports clubs, or city parks in a residential neighbourhood may affect the likelihood that people participate in sports and their preferences for a certain sports location. This study aimed to assess whether objective physical and socio-spatial neighbourhood characteristics relate to sports participation and preferences for sports locations. Data from Dutch adults (N = 1201) on sports participation, their most-used sports location, and socio-demographic characteristics were collected using an online survey. Objective land-use data and the number of sports facilities were gathered for each participant using a 2000-m buffer around their home locations, whereas socio-spatial neighbourhood characteristics (i.e., density, socio-economic status, and safety) were determined at the neighbourhood level. A discrete choice-modelling framework (multinomial probit model) was used to model the associations between neighbourhood characteristics and sports participation and location. Higher proportions of green space, blue space, and the number of sports facilities were positively associated with sports participation in public space, at sports clubs, and at other sports facilities. Higher degrees of urbanization were negatively associated with sports participation at public spaces, sports clubs, and other sports facilities. Those with more green space, blue space or sports facilities in their residential neighbourhood were more likely to participate in sports, but these factors did not affect their preference for a certain sports location. Longitudinal study designs are necessary to assess causality: do active people choose to live in sports-facilitating neighbourhoods, or do neighbourhood characteristics affect sports participation?
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Directory of Open Access Journals (Sweden)
Mark Janssen
Full Text Available Individual and unorganized sports with a health-related focus, such as recreational running, have grown extensively in the last decade. Consistent with this development, there has been an exponential increase in the availability and use of electronic monitoring devices such as smartphone applications (apps and sports watches. These electronic devices could provide support and monitoring for unorganized runners, who have no access to professional trainers and coaches. The purpose of this paper is to gain insight into the characteristics of event runners who use running-related apps and sports watches. This knowledge is useful from research, design, and marketing perspectives to adequately address unorganized runners' needs, and to support them in healthy and sustainable running through personalized technology. Data used in this study are drawn from the standardized online Eindhoven Running Survey 2014 (ERS14. In total, 2,172 participants in the Half Marathon Eindhoven 2014 completed the questionnaire (a response rate of 40.0%. Binary logistic regressions were used to analyze the impact of socio-demographic variables, running-related variables, and psychographic characteristics on the use of running-related apps and sports watches. Next, consumer profiles were identified. The results indicate that the use of monitoring devices is affected by socio-demographics as well as sports-related and psychographic variables, and this relationship depends on the type of monitoring device. Therefore, distinctive consumer profiles have been developed to provide a tool for designers and manufacturers of electronic running-related devices to better target (unorganized runners' needs through personalized and differentiated approaches. Apps are more likely to be used by younger, less experienced and involved runners. Hence, apps have the potential to target this group of novice, less trained, and unorganized runners. In contrast, sports watches are more likely to
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Scheerder, Jeroen; Thibaut, Erik; Brombacher, Aarnout
2017-01-01
Individual and unorganized sports with a health-related focus, such as recreational running, have grown extensively in the last decade. Consistent with this development, there has been an exponential increase in the availability and use of electronic monitoring devices such as smartphone applications (apps) and sports watches. These electronic devices could provide support and monitoring for unorganized runners, who have no access to professional trainers and coaches. The purpose of this paper is to gain insight into the characteristics of event runners who use running-related apps and sports watches. This knowledge is useful from research, design, and marketing perspectives to adequately address unorganized runners’ needs, and to support them in healthy and sustainable running through personalized technology. Data used in this study are drawn from the standardized online Eindhoven Running Survey 2014 (ERS14). In total, 2,172 participants in the Half Marathon Eindhoven 2014 completed the questionnaire (a response rate of 40.0%). Binary logistic regressions were used to analyze the impact of socio-demographic variables, running-related variables, and psychographic characteristics on the use of running-related apps and sports watches. Next, consumer profiles were identified. The results indicate that the use of monitoring devices is affected by socio-demographics as well as sports-related and psychographic variables, and this relationship depends on the type of monitoring device. Therefore, distinctive consumer profiles have been developed to provide a tool for designers and manufacturers of electronic running-related devices to better target (unorganized) runners’ needs through personalized and differentiated approaches. Apps are more likely to be used by younger, less experienced and involved runners. Hence, apps have the potential to target this group of novice, less trained, and unorganized runners. In contrast, sports watches are more likely to be used by a
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Perception of coaching behaviors, coping, and achievement in a sport competition.
Nicolas, Michel; Gaudreau, Patrick; Franche, Veronique
2011-06-01
This study examined the relationship between perceived coaching behaviors, coping strategies during a sport competition, and sport achievement. A prospective design was used in which 80 athletes from individual sports completed measures of perceived coaching behaviors two days before a competition (Time 1) and measures of coping and sport achievement within three hours after a sport competition (Time 2). As expected, results of multiple regressions indicated that supportive coaching was a positive predictor of task-oriented coping and sport achievement whereas unsupportive coaching was a positive predictor of disengagement-oriented coping. Both types of coping were significantly associated with sport achievement. Task-oriented coping was a significant partial mediator in the relation between supportive coaching and sport achievement. This study, which contributes to both the coaching and coping literatures, highlights the role of supportive coaching behaviors in the initiation of effective stress management during sport competitions.
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Sports-related eye and adnexal injuries in the Western Australian paediatric population.
Hoskin, Annette K; Yardley, Anne-Marie E; Hanman, Kate; Lam, Geoffrey; Mackey, David A
2016-09-01
To identify the causes of sports-related eye and adnexal injuries in children in Perth, Western Australia, to determine which sporting activities pose the highest risk of eye and adnexal injury to children. We performed a 12-year retrospective review of children admitted to hospital from 2002 to 2013 with sports-related ocular and adnexal eye injuries. The main outcome measures were the cause and type of ocular and adnexal injuries, age and gender risk factors. A total of 93 cases of sports-related ocular and adnexal injury were identified in the 12-year time period. A peak in injuries occurred for 12- to 14-year-olds with a second peak in 6- to 8-year-olds; the median age was 8.82 years (range = 1.59-16.47). Cycling, football (including soccer and Australian Rules Football), tennis, trampolining, fishing and swimming were the sports responsible for the greatest number of injuries, a total of 63%. More than one-third (35%) of injuries resulted from being struck by a blunt object, and more than a quarter (26%) were as a result of contact with a blunt projectile. Serious ocular and adnexal injuries have occurred in children as a result of participating in sports, with cycling and football being the largest contributors in the 12-year period we assessed. As we continue to encourage children to spend more time participating in sports and recreational activities, identifying associated risk factors will help us develop injury prevention strategies to promote eye safety for children. © 2015 Acta Ophthalmologica Scandinavica Foundation. Published by John Wiley & Sons Ltd.
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Gottlieb, Daniel A
2006-03-01
Partial reinforcement often leads to asymptotically higher rates of responding and number of trials with a response than does continuous reinforcement in pigeon autoshaping. However, comparisons typically involve a partial reinforcement schedule that differs from the continuous reinforcement schedule in both time between reinforced trials and probability of reinforcement. Two experiments examined the relative contributions of these two manipulations to asymptotic response rate. Results suggest that the greater responding previously seen with partial reinforcement is primarily due to differential probability of reinforcement and not differential time between reinforced trials. Further, once established, differences in responding are resistant to a change in stimulus and contingency. Secondary response theories of autoshaped responding (theories that posit additional response-augmenting or response-attenuating mechanisms specific to partial or continuous reinforcement) cannot fully accommodate the current body of data. It is suggested that researchers who study pigeon autoshaping train animals on a common task prior to training them under different conditions.
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Reinforcing value and hypothetical behavioral economic demand for food and their relation to BMI.
Epstein, Leonard H; Paluch, Rocco A; Carr, Katelyn A; Temple, Jennifer L; Bickel, Warren K; MacKillop, James
2018-04-01
Food is a primary reinforcer, and food reinforcement is related to obesity. The reinforcing value of food can be measured by establishing how hard someone will work to get food on progressive-ratio schedules. An alternative way to measure food reinforcement is a hypothetical purchase task which creates behavioral economic demand curves. This paper studies whether reinforcing value and hypothetical behavioral demand approaches are assessing the same or unique aspects of food reinforcement for low (LED) and high (HED) energy density foods using a combination of analytic approaches in females of varying BMI. Results showed absolute reinforcing value for LED and HED foods and relative reinforcing value were related to demand intensity (r's = 0.20-0.30, p's demand elasticity (r's = 0.17-0.22, p's demand task, and the differential role of effort in the two tasks. Examples of how a better understanding of food reinforcement may be useful to prevent or treat obesity are discussed, including engaging in alternative non-food reinforcers as substitutes for food, such as crafts or socializing in a non-food environment, and reducing the value of immediate food reinforcers by episodic future thinking. Copyright © 2018. Published by Elsevier Ltd.
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2016-03-01
It is the position of the Academy of Nutrition and Dietetics, Dietitians of Canada, and the American College of Sports Medicine that the performance of, and recovery from, sporting activities are enhanced by well-chosen nutrition strategies. These organizations provide guidelines for the appropriate type, amount, and timing of intake of food, fluids, and supplements to promote optimal health and performance across different scenarios of training and competitive sport. This position paper was prepared for members of the Academy of Nutrition and Dietetics, Dietitians of Canada (DC), and American College of Sports Medicine (ACSM), other professional associations, government agencies, industry, and the public. It outlines the Academy's, DC's and ACSM's stance on nutrition factors that have been determined to influence athletic performance and emerging trends in the field of sports nutrition. Athletes should be referred to a registered dietitian/nutritionist for a personalized nutrition plan. In the United States and in Canada, the Certified Specialist in Sports Dietetics (CSSD) is a registered dietitian/nutritionist and a credentialed sports nutrition expert.
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Limperg, P F; Joosten, M M H; Fijnvandraat, K; Peters, M; Grootenhuis, M A; Haverman, L
2018-02-08
This study assesses health-related quality of life (HRQOL), and variables associated with HRQOL, in children and adolescents with haemophilia and congenital bleeding disorders (CBD) in the Netherlands. Patients Differences and effect sizes in HRQOL compared to healthy peers, and between hemophilia severity groups, were tested using Mann Whitney U-tests. Multivariate regression analyses were performed to assess variables associated with HRQOL. Data of 145 patients (81%) were analyzed (N = 32 with severe haemophilia). Children (0-12 years) show no significant impairments in HRQOL compared to healthy peers. Adolescent boys (13-18 years) with CBD report a slightly higher HRQOL on the total and emotional functioning scales than healthy peers (small-moderate effect sizes). In contrast, adolescent girls experience lower HRQOL on total, social functioning and psychosocial health scales compared to healthy peers (moderate effect sizes). No differences between severity groups were found in HRQOL, but more problem behaviour was found in young boys (0-5 years) with severe haemophilia. Male gender, participation in sports and school attendance are positively associated with HRQOL. Parental country of birth, type of treatment and number of bleeds are not associated with HRQOL. Continuing monitoring HRQOL in daily clinical practice for children with CBD is important, since possible influencing psychosocial factors can change over time, with special focus on adolescent girls, sports participation and school absence. © 2018 John Wiley & Sons Ltd.
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[Medicine in sports or sport medicine?] ].
Heimer, S; Tonković-Lojović, M
2001-01-01
Sports medicine is a profession pertaining to primary health care of sport population (competitors, coaches, referees, participants in sports recreation). It embraces the physical and mental health protection and promotion of participants in relation to a particular sport activity and sport environment, directing athletes to a sport and adapting them to sport and the sport to them. Sports medicine takes part in selection procedure, training process planning and programming, and cares for epidemiological, hygienic, nutritional and other problems in sport. The Republic of Croatia belongs to those world states in which the field of sports medicine is regulated neither by a law or by profession. A consequence is that wide circle of physicians and paramedics work in clubs and various medical units without any legal or/and professional control not being adequately educated nor having licence for it. This review is an appeal to the Croatian Medical Chamber and the Ministry of Health to make efforts to promote the education and medical profession in sports medicine.
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RELATİONSHİP BETWEEN PUBLİC RELATİONS AND SPONSORSHİPS İN SPORT MARKETİNG
Hale BOZKURT; Reşat KARTAL
2008-01-01
The concept of sport sector arised together with the concept of sport marketing. Sport marketing is a vital and powerful strategic tool in sport business at local, national, and international levels. Sport marketing means that trademarks are being marketed through sport and also sport is being marketed for social aims. Sport marketing methods are event marketing, advertising, and public relations. Public relations in these methods is key element for creating a positive image by making an emot...
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Students about politics and national identification in sports
Directory of Open Access Journals (Sweden)
Bazić Jovan R.
2014-01-01
Full Text Available This paper discusses the results of the research on politics and national identification in the sports, which was conducted among the students of the Faculty of Sports and Physical Education at the University of Kosovska Mitrovica, Niš and Banja Luka. This study included a total of 464 students, and it was conducted in April and May 2013 in Leposavić, Niš and Banja Luka. The main goal of this research is to determine to which extent the students recognize the influence of politics in the sports at the level of everyday practice, and how they view the process of consolidation and expression of national identity in sports. This paper also points to the relevant theoretical and methodological approaches to understanding politics, sports and national identity, as well as their mutual relations. The results of the survey show that students recognize not only the impact of politics in sports but also the expression of national identification in sports competitions, as well as in the events relating to them, in which an exceptional role is played by the media of mass communication. In their responses to the questions, the students indicated that the politics has a major impact on the sports, and that sports have a significant impact on politics, noting that the success of the top sportsmen, especially in international competitions, encourage the awakening of national feelings, strengthen national identification and contribute to the strengthening of patriotism. This effect is particularly reinforced by the behavior and statements of top athletes in the media, after major sporting results, as well as the statements of the highest state officials on these occasions. That is why these achievements are of great significance for the promotion of the state and the nation, but they are, on the other hand, also very useful for personal promotion of politicians and political parties in power. The students also observed the importance of the role of the
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Consumption of Sport-Related Dietary Supplements among NCAA Division 1 Female Student Athletes
Housman, Jeff; Dorman, Steve; Pruitt, Buzz; Ranjita, Misra; Perko, Michael
2011-01-01
Objectives: To determine factors that influence sport-related dietary supplement consumption among NCAA Division 1 female student athletes and to estimate the plausibility of the theory of planned behavior (TPB) for predicting the use of sport-related dietary supplements among NCAA Division 1 female student athletes. Method: Self-report data were…
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Dunn, Kelly; Fingerhood, Michael; Wong, Conrad J.; Svikis, Dace S.; Nuzzo, Paul; Silverman, Kenneth
2014-01-01
Employment-based reinforcement interventions have been used to promote abstinence from drugs among chronically unemployed injection drug users. The current study utilized an employment-based reinforcement intervention to promote opiate and cocaine abstinence among opioid-dependent, HIV-positive participants who had recently completed a brief inpatient detoxification. Participants (n=46) were randomly assigned to an Abstinence & Work group that was required to provide negative urine samples in...
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Ganta, Abhishek; Yi, Paul H; Hussein, Khalil; Frank, Rachel M
2014-04-01
Although studies have revealed high readability levels of orthopedic patient education materials, no study has evaluated sports medicine-related patient education materials. We conducted a study to assess the readability of sports medicine-related patient education materials from the American Academy of Orthopaedic Surgeons (AAOS) and the American Orthopaedic Society for Sports Medicine (AOSSM). All sports medicine patient education articles available online in 2012 from the AAOS and the AOSSM, including the Stop Sports Injuries Campaign (STOP), were identified, and their readability was assessed with the Flesch-Kinkaid (FK) readability test. Mean overall FK grade level of the 170 articles reviewed (104 from AAOS, 36 from AOSSM, 30 from STOP) was 10.2. Mean FK levels for the 3 sources were 9.5 (AAOS), 11.0 (AOSSM), and 11.5 (STOP) (P = .16). Fifteen (8.8%) of the 170 articles had a readability level at or below eighth grade (average reading level of US adults); only 2 (1.2%) of the 170 articles were at or below the recommended sixth-grade level. The majority of sports medicine-related patient education materials from AAOS and AOSSM had reading levels higher than recommended, indicating that the majority of the patient population may find it difficult to comprehend these articles.
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International Nuclear Information System (INIS)
Sharma, Anshu Rajnish
2010-01-01
Nuclear medicine can synergistically contribute to the sports medicine field, in the management of sports-related stress injures. Bone scintigraphy is commonly requested for evaluation of athletes with pain. Three-Phase 99m Tc MDP Bone Scan has emerged as the imaging reference standard for diagnosing such injuries. The inherently high-contrast resolution of the bone scan allows early detection of bone trauma and becomes positive within six to seventy-two hours after the onset of symptoms. The bone scan is able to demonstrate stress injuries days to weeks before the radiograph
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Taliaferro, Lindsay A; Rienzo, Barbara A; Miller, M David; Pigg, R Morgan; Dodd, Virginia J
2010-09-01
Suicide ranks as the third leading cause of death for American youth. Researchers examining sport participation and suicidal behavior have regularly found inverse relationships. This study represents the first effort to test a model depicting potential mechanisms through which sport participation relates to reduced risk of suicidal ideation. The participants were 450 undergraduate students. Measures assessed participants' involvement in university-run sports and other activities; frequency of physical activity; and perceived social support, self-esteem, depression, hopelessness, loneliness, and suicidal ideation. Regression analyses confirmed a path model and tested for mediation effects. Vigorous activity mediated relationships between sport participation and self-esteem and depression; and self-esteem and depression mediated the relationship between vigorous activity and suicidal ideation. Social support mediated relationships between sport participation and depression, hopelessness, and loneliness; and each of these risk factors partially mediated the relationship between social support and suicidal ideation. However no variable fully mediated the relationship between sport participation and suicidal ideation. This study provides a foundation for research designed to examine pathways through which sport participation relates to reduced risk of suicidal behavior.
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Giebel, Stephen; Kothari, Rashmi; Koestner, Amy; Mohney, Gretchen; Baker, Robert
2011-12-01
Numerous guidelines to grade and manage sports-related concussions have been published. However, little is known about how frequently they are implemented in the emergency department. This study evaluates the current practices of emergency physicians (EPs) in managing sports-related concussions. To evaluate the current practice of EP evaluation and management of sports-related concussions. All EPs and emergency medicine residents in Kalamazoo County were surveyed regarding their management of sports-related concussions. The surveys obtained demographic data, participants' use of guidelines, and the importance of clinical and non-clinical factors in deciding when to allow a player to return to play. Of the 73 EP respondents, only 23% used a nationally recognized guideline, with no significant difference between attending and resident EPs. The symptomatic complaints of loss of consciousness, amnesia of the event, and difficulty concentrating were ranked most important by EPs in assessing patients with sports-related concussions. Among non-clinical factors, residents were significantly more likely than attendings to report that medical-legal, parental, and players' concerns were more likely to influence their decision in allowing a patient to return to play. EPs take into consideration important clinical factors in assessing patients with sports-related concussion. However, almost 75% do not use any nationally recognized guideline in their evaluation. Residents are more likely than attendings to be influenced by non-clinical factors. Copyright © 2011 Elsevier Inc. All rights reserved.
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Sport-related anxiety: current insights
Ford, Jessica L; Ildefonso, Kenneth; Jones, Megan L; Arvinen-Barrow, Monna
2017-01-01
Jessica L Ford, Kenneth Ildefonso, Megan L Jones, Monna Arvinen-Barrow Department of Kinesiology, Integrative Health Care & Performance Unit, University of Wisconsin-Milwaukee, Milwaukee, WI, USA Abstract: To date, much research has been devoted to understanding how anxiety can affect sport performance, both in practice and in competitive settings. It is well known that sport has the potential for high levels of stress and anxiety, and that practicing and employing a range of...
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Childhood Sports Participation and Adolescent Sport Profile.
Gallant, François; O'Loughlin, Jennifer L; Brunet, Jennifer; Sabiston, Catherine M; Bélanger, Mathieu
2017-12-01
We aimed to increase understanding of the link between sport specialization during childhood and adolescent physical activity (PA). The objectives were as follows: (1) describe the natural course of sport participation over 5 years among children who are early sport samplers or early sport specializers and (2) determine if a sport participation profile in childhood predicts the sport profile in adolescence. Participants ( n = 756, ages 10-11 years at study inception) reported their participation in organized and unorganized PA during in-class questionnaires administered every 4 months over 5 years. They were categorized as early sport samplers, early sport specializers, or nonparticipants in year 1 and as recreational sport participants, performance sport participants, or nonparticipants in years 2 to 5. The likelihood that a childhood sport profile would predict the adolescent profile was computed as relative risks. Polynomial logistic regression was used to identify predictors of an adolescent sport profile. Compared with early sport specialization and nonparticipation, early sport sampling in childhood was associated with a higher likelihood of recreational participation (relative risk, 95% confidence interval: 1.55, 1.18-2.03) and a lower likelihood of nonparticipation (0.69, 0.51-0.93) in adolescence. Early sport specialization was associated with a higher likelihood of performance participation (1.65, 1.19-2.28) but not of nonparticipation (1.01, 0.70-1.47) in adolescence. Nonparticipation in childhood was associated with nearly doubling the likelihood of nonparticipation in adolescence (1.88, 1.36-2.62). Sport sampling should be promoted in childhood because it may be linked to higher PA levels during adolescence. Copyright © 2017 by the American Academy of Pediatrics.
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Predictors of Moral Disengagement in Sport.
Shields, David Light; Funk, Christopher D; Bredemeier, Brenda Light
2015-12-01
Researchers have made productive use of Bandura's (1991) construct of moral disengagement (MD) to help explain why sport participants deviate from ethical ideals. In this study of intercollegiate athletes from diverse sports (N = 713), we examined MD in relation to other character-related variables: empathy, moral identity, moral attentiveness, and contesting orientations. We also examined whether moral attentiveness conforms to the pattern of "bracketed morality" found in moral reasoning (Shields & Bredemeier, 1995) and moral behavior (Kavussanu, Boardley, Sagar, & Ring, 2013). Results indicated that MD correlated positively with perceptual moral attentiveness and war contesting orientation; MD correlated negatively with empathy, moral identity, reflective moral attentiveness, and partnership contesting orientation. Results of hierarchical regression demonstrated that gender, contesting orientations, moral identity, and one form of moral attentiveness were significant predictors of MD. Finally, sport participants were found to be less morally attentive in sport than in everyday life.
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Wicker, Pamela; Downward, Paul; Lera-López, Fernando
2017-11-01
This study examines the role of regional government quality in health-related participation in sport and physical activity among adults (18-64 years) in 28 European countries. The importance of the analysis rests in the relative autonomy that regional and local governments have over policy decisions connected with sport and physical activity. While existing studies have focussed on economic and infrastructural investment and expenditure, this research investigates the quality of regional governments across 208 regions within 28 European countries. The individual-level data stem from the 2013 Eurobarometer 80.2 (n = 18,675) and were combined with regional-level data from Eurostat. An individual's level of participation in sport and physical activity was measured by three variables reflecting whether an individual's activity level is below, meets, or exceeds the recommendations of the World Health Organization. The results of multi-level analyses reveal that regional government quality has a significant and positive association with individual participation in sport and physical activity at a level meeting or exceeding the guidelines. The impact is much larger than that of regional gross domestic product per capita, indicating that regional disadvantage in terms of political quality is more relevant than being disadvantaged in terms of economic wealth.
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Mass sports of students and cadets which server military contract in positions of officers
Directory of Open Access Journals (Sweden)
Anastasia Bondar
2015-12-01
Full Text Available Purpose: study of features of organization of mass sports of students and cadets which server military contract in positions of officers. Material and Methods: analysis of literary sources and documents, analysis of the systems, questioning (questionnaire, methods of the mathematical processing of data. In a questionnaire 97 respondents – 29 cadets of a 5 course and 68 students of 4 courses of military-legal faculty of the Yaroslav Mudryi National law university. Results: 69% cadets and only 35% students are engaged in the different types of motive activity in free time, here 48% cadets and 43% students elect the playing types of sport (football, volley-ball, basket-ball, 65,5% cadets and 48,5% students go in for sports for self-perfection and self-realization, here 45% cadets and 32% students plan necessarily to prolong to be engaged in the select type of sport upon termination of studies in higher educational establishment. Conclusions: the Study 4th Year Students And Students Of The 5th Year Of Military Faculty Of Law Has Shown That The Students Serious About Their Chosen Profession And Understand The Importance Of Physical Fitness In A Future Service, They Are Able To Objectively Assess The Level Of Their Physical Readiness And Are Ready For Further Self-Improvement
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Structural Behavior of Concrete Beams Reinforced with Basalt Fiber Reinforced Polymer (BFRP) Bars
Ovitigala, Thilan
The main challenge for civil engineers is to provide sustainable, environmentally friendly and financially feasible structures to the society. Finding new materials such as fiber reinforced polymer (FRP) material that can fulfill the above requirements is a must. FRP material was expensive and it was limited to niche markets such as space shuttles and air industry in the 1960s. Over the time, it became cheaper and spread to other industries such as sporting goods in the 1980-1990, and then towards the infrastructure industry. Design and construction guidelines are available for carbon fiber reinforced polymer (CFRP), aramid fiber reinforced polymer (AFRP) and glass fiber reinforced polymer (GFRP) and they are currently used in structural applications. Since FRP is linear elastic brittle material, design guidelines for the steel reinforcement are not valid for FRP materials. Corrosion of steel reinforcement affects the durability of the concrete structures. FRP reinforcement is identified as an alternative to steel reinforcement in corrosive environments. Although basalt fiber reinforced polymer (BFRP) has many advantages over other FRP materials, but limited studies have been done. These studies didn't include larger BFRP bar diameters that are mostly used in practice. Therefore, larger beam sizes with larger BFRP reinforcement bar diameters are needed to investigate the flexural and shear behavior of BFRP reinforced concrete beams. Also, shear behavior of BFRP reinforced concrete beams was not yet studied. Experimental testing of mechanical properties and bond strength of BFRP bars and flexural and shear behavior of BFRP reinforced concrete beams are needed to include BFRP reinforcement bars in the design codes. This study mainly focuses on the use of BFRP bars as internal reinforcement. The test results of the mechanical properties of BFRP reinforcement bars, the bond strength of BFRP reinforcement bars, and the flexural and shear behavior of concrete beams
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Luczynski, Kevin C; Hanley, Gregory P
2014-01-01
Several studies have shown that children prefer contingent reinforcement (CR) rather than yoked noncontingent reinforcement (NCR) when continuous reinforcement is programmed in the CR schedule. Preference has not, however, been evaluated for practical schedules that involve CR. In Study 1, we assessed 5 children's preference for obtaining social interaction via a multiple schedule (periods of fixed-ratio 1 reinforcement alternating with periods of extinction), a briefly signaled delayed reinforcement schedule, and an NCR schedule. The multiple schedule promoted the most efficient level of responding. In general, children chose to experience the multiple schedule and avoided the delay and NCR schedules, indicating that they preferred multiple schedules as the means to arrange practical schedules of social interaction. In Study 2, we evaluated potential controlling variables that influenced 1 child's preference for the multiple schedule and found that the strong positive contingency was the primary variable. © Society for the Experimental Analysis of Behavior.
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Thomas, D Travis; Erdman, Kelly Anne; Burke, Louise M
2016-03-01
It is the position of the Academy of Nutrition and Dietetics (Academy), Dietitians of Canada (DC), and the American College of Sports Medicine (ACSM) that the performance of, and recovery from, sporting activities are enhanced by well-chosen nutrition strategies. These organizations provide guidelines for the appropriate type, amount, and timing of intake of food, fluids, and supplements to promote optimal health and performance across different scenarios of training and competitive sport. This position paper was prepared for members of the Academy, DC, and ACSM, other professional associations, government agencies, industry, and the public. It outlines the Academy's, DC's, and ACSM's stance on nutrition factors that have been determined to influence athletic performance and emerging trends in the field of sports nutrition. Athletes should be referred to a registered dietitian nutritionist for a personalized nutrition plan. In the United States and in Canada, the Certified Specialist in Sports Dietetics is a registered dietitian nutritionist and a credentialed sports nutrition expert. Copyright © 2016 Academy of Nutrition and Dietetics, American College of Sports Medicine, and Dietitians of Canada. Published by Elsevier Inc. All rights reserved.
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THE POSITION OF SPORTS-RECREATIONAL TOURISM IN MONTENEGRO
Directory of Open Access Journals (Sweden)
Ognjen Jovović
2009-11-01
Full Text Available Basic for realization of tourist movements lays in meeting cultural and recreati- onal needs of potential customers. If we know that largest number of tourists represents part of recreational ones, than is not hard to realize how large potential lays in that number of potential guests. On this fact should be built strategy of movement of tourist offer of Montenegro for it extreme potentials on which can be founded concrete project. In this work are given basic assumptions for development of sport recreational shapes of tourism with stress to natural potentials that directly determine shape of sport recreational activities that represent basis of tourist offer. Offer should be created in that way that it is adapted to wide segment of recreational guests and not professional sportsmen, although they also should not be underestimated but one should know that in order to create conditions for arrival of sports professionals offer has to be completely different and more specialized that requires creating of conditions of existence of highly developed sports infrastruc- ture, while for amateurs a lot can be done in “system of improvising”, satisfying basic criteria – recreation in conditions of untouched and well preserved nature with securing maximal level of security and protection of guests, in order to prevent possible unwilling consequences that can lead to injury of guests and for development and realization of such project one need a much less funds than is building of facilities that should meet standards of professional sportsmen. The aim is to create good offer at good infrastructure, logistics and with good equipment with securing maximal security, adaptation to various wishes of guests, ta- king in consideration their structure is conditioned by age, health condition, physical fitness as personal wishes toward sports and recreational activities.
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Sport participation influences perceptions of mate characteristics.
Schulte-Hostedde, Albrecht I; Eys, Mark A; Emond, Michael; Buzdon, Michael
2012-02-22
Sport provides a context in which mate choice can be facilitated by the display of athletic prowess. Previous work has shown that, for females, team sport athletes are more desirable as mates than individual sport athletes and non-participants. In the present study, the perceptions of males and females were examined regarding potential mates based on sport participation. It was predicted that team sport athletes would be more positively perceived than individual sport athletes and non-participants by both males and females. A questionnaire, a photograph, and manipulated descriptions were used to gauge perceptual differences with respect to team sport athletes, individual sport athletes, and extra-curricular club participants for 125 females and 119 males from a Canadian university. Both team and individual sport athletes were perceived as being less lazy, more competitive, and healthier than non-participants by both males and females. Interestingly, females perceived male athletes as more promiscuous than non-athletes, which upholds predictions based on previous research indicating (a) athletes have more sexual partners than non-athletes, and (b) females find athletes more desirable as partners than non-participants. Surprisingly, only males perceived female team sport athletes as more dependable than non-participants, and both team and individual sport athletes as more ambitious. This raises questions regarding the initial hypothesis that male team athletes would be perceived positively by females because of qualities such as the ability to cooperate, likeability, and the acceptance of responsibilities necessary for group functioning. Future studies should examine similar questions with a larger sample size that encompasses multiple contexts, taking into account the role of the social profile of sport in relation to mate choice and perception.
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Plasma soluble prion protein, a potential biomarker for sport-related concussions: a pilot study.
Pham, Nam; Akonasu, Hungbo; Shishkin, Rhonda; Taghibiglou, Changiz
2015-01-01
Sport-related mild traumatic brain injury (mTBI) or concussion is a significant health concern to athletes with potential long-term consequences. The diagnosis of sport concussion and return to sport decision making is one of the greatest challenges facing health care clinicians working in sports. Blood biomarkers have recently demonstrated their potential in assisting the detection of brain injury particularly, in those cases with no obvious physical injury. We have recently discovered plasma soluble cellular prion protein (PrP(C)) as a potential reliable biomarker for blast induced TBI (bTBI) in a rodent animal model. In order to explore the application of this novel TBI biomarker to sport-related concussion, we conducted a pilot study at the University of Saskatchewan (U of S) by recruiting athlete and non-athlete 18 to 30 year-old students. Using a modified quantitative ELISA method, we first established normal values for the plasma soluble PrP(C) in male and female students. The measured plasma soluble PrP(C) in confirmed concussion cases demonstrated a significant elevation of this analyte in post-concussion samples. Data collected from our pilot study indicates that the plasma soluble PrP(C) is a potential biomarker for sport-related concussion, which may be further developed into a clinical diagnostic tool to assist clinicians in the assessment of sport concussion and return-to-play decision making.
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International Nuclear Information System (INIS)
Michel, A.; Solgaard, A.O.S.; Pease, B.J.; Geiker, M.R.; Stang, H.; Olesen, J.F.
2013-01-01
Highlights: •Cracked plain and steel fibre reinforced concrete flexural beams were investigated. •“Instrumented rebars” provided location- and time-dependent corrosion measurements. •Interfacial condition can be used as a reliable indicator to quantify the risk of corrosion. •Simulated interfacial conditions are in very good agreement with all experimental observations. -- Abstract: Cracks in covering concrete are known to hasten initiation of steel corrosion in reinforced concrete structures. To minimise the impact of cracks on the deterioration of reinforced concrete structures, current approaches in (inter)national design codes often limit the concrete surface crack width. Recent investigations however, indicate that the concrete-reinforcement interfacial condition is a more fundamental criterion related to reinforcement corrosion. This work investigates the relation between macroscopic damage at the concrete-steel interface and corrosion initiation of reinforcement embedded in plain and fibre reinforced concrete. Comparisons of experimental and numerical results indicate a strong correlation between corrosion initiation and interfacial condition
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Koen Breedveld; Rob Goossens; Maarten van Bottenburg; Wil Ooijendijk; Vincent Hildebrandt; Maarten Stiggelbout; Jo Lucassen; Hugo van der Poel
2003-01-01
Original title: Rapportage Sport 2003. There has been a huge increase in the interest in sport in recent decades. The number of people taking part in sport has grown strongly and more sport is broadcast on television than ever before. The government has invested a great deal in sport, not least because of the growing awareness of the positive effect that sport can have on health, social cohesion and the economy. Sport is now an integral part of society and has developed into the biggest infor...
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Parkhouse, Bonnie L., Ed.; And Others
1984-01-01
Traditional teaching and coaching positions have become scarce but the expanding field of sport management has created its own job market, demanding new skills and preparation. Three articles are offered that explore different aspects and possibilities for a sport management career. (DF)
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Contact Dermatitis to Personal Sporting Equipment in Youth.
Marzario, Barbara; Burrows, Dianne; Skotnicki, Sandy
2016-07-01
Contact dermatitis to personal sporting equipment in youth is poorly studied. To review the results of patch testing 6 youth to their sporting equipment in a dermatology general private practice from 2006 to 2011. A retrospective analysis of 6 youth aged 11 to 14 who were evaluated for chronic and persistent dermatitis occurring in relation to sports equipment was conducted. All patients were subjected to epicutaneous (patch) testing, which included some or all of the following: North American Contact Dermatitis Group (NACGD) series, textile series, rubber series, corticosteroid series, and raw material from the patients' own personal equipment. All cases had 1 or more positive patch test reactions to an allergen within the aforementioned series, and 3 subjects tested positive to their personal equipment in raw form. Allergic contact dermatitis, not irritant, was deemed the relevant cause of chronic dermatitis in 4 of the 6 patients due to positive reactions to epicutaneous tests and/or personal equipment. The utility of testing to patients' own sporting equipment was shown to be of additional value and should be considered when patch testing for contact allergy to sporting equipment. © The Author(s) 2015.
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A review of 20th century literature related to sport law | Singh | South ...
African Journals Online (AJOL)
The growing interaction between sport and the law has created a need for a greater understanding of how the law relates to the world of sport and physical recreation. This is a highly dynamic and rapidly expanding area of scientific inquiry. In this review article an attempt is made at reviewing the local literature related to the ...
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Management of sport-related concussion in young athletes.
Patel, Dilip R; Shivdasani, Vandana; Baker, Robert J
2005-01-01
Sport-related head injuries are a common clinical problem. Most head injuries in young athletes are mild traumatic brain injuries or concussions. The highest number of sport-related concussions has been reported in American football. In addition to the well described physical and psychosocial growth, there is ongoing neurocognitive development of the brain during childhood and through adolescence. This developmental process has direct implications in the assessment and management of head injuries in young athletes. Research on the management and long-term outcome following brain injuries in young athletes is limited. Traditionally, the assessment of concussion has been based on clinical history and physical and neurological examination. Increasingly, neuropsychological testing, especially computerised testing, is providing objective measures for the initial assessment and follow-up of young athletes following brain injuries. Numerous guidelines have been published for grading and return to play criteria following concussion; however, none of these have been prospectively validated by research and none are specifically applicable to children and adolescents.
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Positive Behavior Support in sport clubs in the Netherlands: first experiences
Hofenk, Harold; van Veldhoven, Nicolette; Bronkhorst, Arnold
2016-01-01
Sports constitute a basis of fun for many (young) people and can contribute to important social developments. Sport can also yield opposite results:: arrogance, bullying, (sexual) intimidation, discrimination. Effects are largely influenced by the context of (youth) sport participation. In facing
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Most common sports-related injuries in a pediatric emergency department.
Monroe, Kathy W; Thrash, Chris; Sorrentino, Annalise; King, William D
2011-01-01
Participation in sports is a popular activity for children across the country. Prevention of sports-related injuries can be improved if details of injuries are documented and studied. A retrospective medical record review of injuries that occurred as a direct result of sports participation (both organized and non-organized play) from November 2006 to November 2007. Because the vast majority of injuries were a result of participation in football or basketball, these injuries were focused upon. The injuries specifically examined were closed head injury (CHI), lacerations and fractures. There were 350 football and 196 basketball injuries (total 546). Comparing injuries between the two groups fractures were found to be more prevalent in football compared to basketball (z = 2.14; p = 0.03; 95%CI (0.01, 0.16)). Lacerations were found to be less prevalent among helmeted patients than those without helmets. (z = 2.39; p = 0.02; 95%CI (-0.17,-0.03)). CHI was more prevalent among organized play compared to non-organized (z = 3.9; pfootball related visits, organized play had a higher prevalence of injury compared to non-organized play (z = 2.87; p = 0.004; 95%CI (0.04.0.21)). No differences in fracture or laceration prevalence were found between organized and non-organized play. Football and basketball related injuries are common complaints in a pediatric Emergency Department. Frequently seen injuries include CHI, fractures and lacerations. In our institution, fractures were more prevalent among football players and CHI was more prevalent among organized sports participants.
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Plasma Soluble Prion Protein, a Potential Biomarker for Sport-Related Concussions: A Pilot Study
Pham, Nam; Akonasu, Hungbo; Shishkin, Rhonda; Taghibiglou, Changiz
2015-01-01
Sport-related mild traumatic brain injury (mTBI) or concussion is a significant health concern to athletes with potential long-term consequences. The diagnosis of sport concussion and return to sport decision making is one of the greatest challenges facing health care clinicians working in sports. Blood biomarkers have recently demonstrated their potential in assisting the detection of brain injury particularly, in those cases with no obvious physical injury. We have recently discovered plasm...
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The pediatric athlete: younger athletes with sport-related concussion.
Meehan, William P; Taylor, Alex M; Proctor, Mark
2011-01-01
Although much of the lay media attention surrounding sport-related concussion (SRC) focuses on professional athletes, SRC is a common injury in pediatric sports. The anatomy, biomechanics, and response to injury of the developing pediatric brain differ from those of the adult. Similarly, the neurocognitive abilities of the child are developing more rapidly than in an adult. The effects of concussive brain injury on the life of a child are different from those of an adult. This article focuses on the aspects of SRC that are specific to the younger athletes. Copyright © 2011 Elsevier Inc. All rights reserved.
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Football experts versus sports economists: Whose forecasts are better?
Frick, Bernd; Wicker, Pamela
2016-08-01
Given the uncertainty of outcome in sport, predicting the outcome of sporting contests is a major topic in sport sciences. This study examines the accuracy of expert predictions in the German Bundesliga and compares their predictions to those of sports economists. Prior to the start of each season, a set of distinguished experts (head coaches and players) express their subjective evaluations of the teams in school grades. While experts may be driven by irrational sentiments and may therefore systematically over- or underestimate specific teams, sports economists use observable characteristics to predict season outcomes. The latter typically use team wage bills given the positive pay-performance relationship as well as other factors (average team age, tenure, appearances on national team, and attendance). Using data from 15 consecutive Bundesliga seasons, the predictive accuracy of expert evaluations and sports economists is analysed. The results of separate estimations show that relative grade and relative wage bill significantly affect relative points, while age, tenure, appearances, and attendance are insignificant. In a joint model, relative grade and relative wage bill are still statistically significant, suggesting that the two types of predictions are complements rather than substitutes. Consequently, football experts and sports economists seem to rely on completely different sources of information when making their predictions.
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Jones, Bethany Alice; Arcelus, Jon; Bouman, Walter Pierre; Haycraft, Emma
2016-01-01
Background\\ud \\ud Whether transgender people should be able to compete in sport in accordance with their gender identity is a widely contested question within the literature and among sport organisations, fellow competitors and spectators. Owing to concerns surrounding transgender people (especially transgender female individuals) having an athletic advantage, several sport organisations place restrictions on transgender competitors (e.g. must have undergone gender-confirming surgery). In add...
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Zhou, Guangwei; Brodsky, Jacob R
2015-06-01
To conduct objective assessment of children with balance and vestibular complaints following sports-related concussions and identify the underlying deficits by analyzing laboratory test outcomes. Case series with chart review. Pediatric tertiary care facility. Medical records were reviewed of 42 pediatric patients with balance and/or vestibular complaints following sports-related concussions who underwent comprehensive laboratory testing on their balance and vestibular function. Patients' characteristics were summarized and results analyzed. More than 90% of the children with protracted dizziness or imbalance following sports-related concussion had at least 1 abnormal finding from the comprehensive balance and vestibular evaluation. The most frequent deficit was found in dynamic visual acuity test, followed by Sensory Organization Test and rotational test. Patient's balance problem associated with concussion seemed to be primarily instigated by vestibular dysfunction. Furthermore, semicircular canal dysfunction was involved more often than dysfunction of otolith organs. Yet, sports-related concussion. Vestibular impairment is common among children with protracted dizziness or imbalance following sports-related concussion. Our study demonstrated that proper and thorough evaluation is imperative to identify these underlying deficits and laboratory tests were helpful in the diagnosis and recommendation of following rehabilitations. © American Academy of Otolaryngology—Head and Neck Surgery Foundation 2015.
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Harris, Andrew W; Jones, C Allyson; Rowe, Brian H; Voaklander, Donald C
2012-07-01
To report the rates of SR-related HIs presenting to EDs in a Canadian population-based sample. Descriptive epidemiology study. Using administrative data, sport and recreation-related emergency department presentations for persons 0-35 years of age, from April 1997 through March 2008, were obtained from the Edmonton Zone (formerly the Capital Health Region), Alberta Health Services through the Ambulatory Care Classification System. Of the 3,230,890 visits to the emergency departments of the five hospitals in Edmonton, 63,219 sport and recreation-related injury records and 4935 sport and recreation-head injury records were identified. Head injuries were most frequently treated for the activities of hockey (20.7%), cycling (12.0%), and skiing/snowboarding/sledding. Males accounted for 71.9% (n=3546) and patients less than 18 years of age sustained 3446 (69.8%) sport and recreation-head injuries. Sport and recreation-related head injuries most frequently treated in emergency departments involve common activities such as hockey, cycling, skiing/snowboarding/sledding, and soccer. Males and those less than 18 years of age sustain the majority of sport and recreation-related head injuries treated in emergency departments. These findings underscore the importance of sport-specific policies and safety promotion for the prevention of head injuries, in sports and recreational activities. Copyright © 2011 Sports Medicine Australia. All rights reserved.
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Galic, Tea; Kuncic, Domagoj; Poklepovic Pericic, Tina; Galic, Ivan; Mihanovic, Frane; Bozic, Josko; Herceg, Mark
2018-03-11
The increasing popularity of participating in sports activities among children and adolescents has increased the risk of sports-related orofacial and dental injuries. Therefore, it is important to establish efficient preventive strategies regarding sports-related dental trauma. The aim of this study was to evaluate the occurrence of sports-related dental injuries in young athletes and to compare the frequency of such injuries between high-risk and medium-risk sports, along with assessing athletes' attitudes and habits regarding mouthguard use. A total of 229 young athletes from four different sports (water polo (n = 59), karate (n = 58), taekwondo (n = 57) and handball (n = 55)) participated in this study. A standardized questionnaire about the frequency of orofacial and dental injuries was used. Questions were also asked about athletes' habits related to mouthguard use. Mean age of the participants was 12.9 ± 3.2 years, and the average time of playing experience was 4.8 ± 3.1 years. Orofacial injury had been experienced by 58 athletes (25.3%), while 31 athletes (13.5%) suffered dental injury. Higher rate of dental injuries was observed in water polo (18.6%), karate (17.2%) and handball (21.8%) than in taekwondo (3.5%) (P = .035). Most participants were aware of mouthguards for dental trauma prevention and considered them efficient for preventing dental injuries during sports activities, but only 94 (41%) used them. There was a statistically significant difference in the use of mouthguards between taekwondo (73.7%) and karate (70.7%) players compared to handball (14.5%) and water polo players (5.1%) (P art sport. Therefore, the classification of sports according to the risk of dental trauma should be reconsidered. It would be beneficial to make wearing a mouthguard mandatory in all high-risk sports, as well as in those with medium-risk for dental injuries. © 2018 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
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PROMOTION OF MONTENEGRO THROUGH SPORTS
Directory of Open Access Journals (Sweden)
Dervis Selhanovic
2011-03-01
Full Text Available Modern social structures of Montenegro exist in a hypercomplex and very dynamic environment. The complexity and dynamism are, in part, a consequence of the general characteristics of the modern age, and in part, of the transition processes which have affected the Montenegrin society. The transition processes are taking place at all levels and subsystems of the community, and its sociological milieu is facing inevitability of adaptation and immersion in such processes and trends. There is no more positive promotion for a country than a sports promotion. There is no expert team, public relations agency or a lawyer than can win Montenegro a front page. We can talk about the importance of sports for the promotion of Montenegro from another point of view. If we compare the number of occurrences of names of the selected Montenegrin athletes with that of politicians, scientists or artists in different internet search engines, we will realize how great is the capacity of marketing potential that lies in Montenegrin sports and top athletes as representatives of the products and services with the label - Made in Montenegro. In addition to the success of the Montenegrin athletes globally, the promotion of Montenegro through sports is directly contributed by the major sporting events and contests, on account of which Montenegro presented itself not only as an excellent host and organizer, but also demonstrated the remarkable state and marketing capabilities and competencies. Reputation (image is not achieved overnight. Its semiological and symbolic charge includes all (visual, vocal, environmental, personal, active inputs, which need to be channelled and created. Indeed, continual work in creating and maintaining the image of Montenegro is a public relations function. With efficiently and professionally developed media and PR strategy, the modern state of Montenegro may expect to favourably position its image at the international scene, and to present its
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Professional relations in sport healthcare: workplace responses to organisational change.
Malcolm, Dominic; Scott, Andrea
2011-02-01
This article examines the impact of organisational changes in UK elite sport on the professional relations among and between different healthcare providers. The article describes the processes by which demand for elite sport healthcare has increased in the UK. It further charts the subsequent response within medicine and physiotherapy and, in particular, the institutionalisation of sport-specific sub-disciplines through the introduction of specialist qualifications. Drawing on semi-structured interviews with 14 doctors and 14 physiotherapists, the article argues that organisational changes have led to intra-professional tensions within both professional groups but in qualitatively different forms reflecting the organisational traditions and professional identities of the respective disciplines. Organisational changes promoting multi-disciplinary healthcare teams have also fostered an environment conducive to high levels of inter-professional cooperation though significant elements of inter-professional conflict remain. This study illustrates how intra-professional relations are affected by specialisation, how legitimation discourses are used by different professions, and how intra- and inter-professional conflict and cooperation should be seen as highly interdependent processes. Copyright © 2010 Elsevier Ltd. All rights reserved.
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Experimental Evaluation of UWB Indoor Positioning for Sport Postures.
Ridolfi, Matteo; Vandermeeren, Stef; Defraye, Jense; Steendam, Heidi; Gerlo, Joeri; De Clercq, Dirk; Hoebeke, Jeroen; De Poorter, Eli
2018-01-09
Radio frequency (RF)-based indoor positioning systems (IPSs) use wireless technologies (including Wi-Fi, Zigbee, Bluetooth, and ultra-wide band (UWB)) to estimate the location of persons in areas where no Global Positioning System (GPS) reception is available, for example in indoor stadiums or sports halls. Of the above-mentioned forms of radio frequency (RF) technology, UWB is considered one of the most accurate approaches because it can provide positioning estimates with centimeter-level accuracy. However, it is not yet known whether UWB can also offer such accurate position estimates during strenuous dynamic activities in which moves are characterized by fast changes in direction and velocity. To answer this question, this paper investigates the capabilities of UWB indoor localization systems for tracking athletes during their complex (and most of the time unpredictable) movements. To this end, we analyze the impact of on-body tag placement locations and human movement patterns on localization accuracy and communication reliability. Moreover, two localization algorithms (particle filter and Kalman filter) with different optimizations (bias removal, non-line-of-sight (NLoS) detection, and path determination) are implemented. It is shown that although the optimal choice of optimization depends on the type of movement patterns, some of the improvements can reduce the localization error by up to 31%. Overall, depending on the selected optimization and on-body tag placement, our algorithms show good results in terms of positioning accuracy, with average errors in position estimates of 20 cm. This makes UWB a suitable approach for tracking dynamic athletic activities.
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Experimental Evaluation of UWB Indoor Positioning for Sport Postures
Directory of Open Access Journals (Sweden)
Matteo Ridolfi
2018-01-01
Full Text Available Radio frequency (RF-based indoor positioning systems (IPSs use wireless technologies (including Wi-Fi, Zigbee, Bluetooth, and ultra-wide band (UWB to estimate the location of persons in areas where no Global Positioning System (GPS reception is available, for example in indoor stadiums or sports halls. Of the above-mentioned forms of radio frequency (RF technology, UWB is considered one of the most accurate approaches because it can provide positioning estimates with centimeter-level accuracy. However, it is not yet known whether UWB can also offer such accurate position estimates during strenuous dynamic activities in which moves are characterized by fast changes in direction and velocity. To answer this question, this paper investigates the capabilities of UWB indoor localization systems for tracking athletes during their complex (and most of the time unpredictable movements. To this end, we analyze the impact of on-body tag placement locations and human movement patterns on localization accuracy and communication reliability. Moreover, two localization algorithms (particle filter and Kalman filter with different optimizations (bias removal, non-line-of-sight (NLoS detection, and path determination are implemented. It is shown that although the optimal choice of optimization depends on the type of movement patterns, some of the improvements can reduce the localization error by up to 31%. Overall, depending on the selected optimization and on-body tag placement, our algorithms show good results in terms of positioning accuracy, with average errors in position estimates of 20 cm. This makes UWB a suitable approach for tracking dynamic athletic activities.
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DEFF Research Database (Denmark)
Quinto Romani, Annette
2018-01-01
In a Danish context, elite sports classes have been moved into the educational system. However, moving the selection of young sports talents into state schools conflicts with the spirit of the equality concept on which the Danish educational system is built. In the light of this debate......, it is relevant to address whether demanding training has a harmful or beneficial impact on pupils’ social life. Using a longitudinal dataset of 1,095 Danish pupils in the Municipality of Aalborg, this paper attempts to estimate the impact of sports participation on peer relations, considering different levels...... of sports dedication. Our results indicate that sports participation increases peer relations in sports, however less for pupils involved in ‘energy’ and especially ‘time’ demanding training. From a policy perspective, on the basis of our results, it can be argued that elite sports classes reduces pupils...
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DEFF Research Database (Denmark)
Quinto Romani, Annette
2018-01-01
, it is relevant to address whether demanding training has a harmful or beneficial impact on pupils’ social life. Using a longitudinal dataset of 1,095 Danish pupils in the Municipality of Aalborg, this paper attempts to estimate the impact of sports participation on peer relations, considering different levels...... of sports dedication. Our results indicate that sports participation increases peer relations in sports, however less for pupils involved in ‘energy’ and especially ‘time’ demanding training. From a policy perspective, on the basis of our results, it can be argued that elite sports classes reduces pupils......In a Danish context, elite sports classes have been moved into the educational system. However, moving the selection of young sports talents into state schools conflicts with the spirit of the equality concept on which the Danish educational system is built. In the light of this debate...
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2016-01-01
The role of curricular activities for the formation of education, health and behavioural outcomes has been widely studied. Yet, the role of extra-curricular activities has received little attention. This study analyzes the effect of participation in sports clubs—one of the most popular extra-curricular activities among children. We use alternative datasets and flexible semi-parametric estimation methods with a specific way to use the panel dimension of the data to address selection into sports. We find positive and robust effects on children’s school performance and peer relations. Crowding out of passive leisure activities can partially explain the effects. PMID:27144474
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Plasma soluble prion protein, a potential biomarker for sport-related concussions: a pilot study.
Directory of Open Access Journals (Sweden)
Nam Pham
Full Text Available Sport-related mild traumatic brain injury (mTBI or concussion is a significant health concern to athletes with potential long-term consequences. The diagnosis of sport concussion and return to sport decision making is one of the greatest challenges facing health care clinicians working in sports. Blood biomarkers have recently demonstrated their potential in assisting the detection of brain injury particularly, in those cases with no obvious physical injury. We have recently discovered plasma soluble cellular prion protein (PrP(C as a potential reliable biomarker for blast induced TBI (bTBI in a rodent animal model. In order to explore the application of this novel TBI biomarker to sport-related concussion, we conducted a pilot study at the University of Saskatchewan (U of S by recruiting athlete and non-athlete 18 to 30 year-old students. Using a modified quantitative ELISA method, we first established normal values for the plasma soluble PrP(C in male and female students. The measured plasma soluble PrP(C in confirmed concussion cases demonstrated a significant elevation of this analyte in post-concussion samples. Data collected from our pilot study indicates that the plasma soluble PrP(C is a potential biomarker for sport-related concussion, which may be further developed into a clinical diagnostic tool to assist clinicians in the assessment of sport concussion and return-to-play decision making.
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... and head gear come in many sizes and styles for many sports and must properly fit to ... to play or practice." The "Concussion Diagnosis and Management" section details circumstances in which an athlete should ...
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ISSP position stand: Transnationalism, mobility, and acculturation in and through sport
DEFF Research Database (Denmark)
Ryba, Tatiana V; Schinke, Robert J; Stambulova, Natalia
2018-01-01
The historically unprecedented pace of internationalising sport industry and transnational movement of athletic talent in the last 20 years has heightened the need for developing new competencies in research and daily practice of sport psychology professionals. While academic literature in cultural...... sport psychology and praxis has been increasing, sport professionals and local organisations seem to give scant time and resources to stay abreast of complex social changes in transnational industry and to the development of cultural competencies. Stemming from the continuing need for qualified athletic...
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Assessment and management of sport-related concussions in United States high schools.
Meehan, William P; d'Hemecourt, Pierre; Collins, Christy L; Comstock, R Dawn
2011-11-01
Little existing data describe which medical professionals and which medical studies are used to assess sport-related concussions in high school athletes. To describe the medical providers and medical studies used when assessing sport-related concussions. To determine the effects of medical provider type on timing of return to play, frequency of imaging, and frequency of neuropsychological testing. Descriptive epidemiology study. All concussions recorded by the High School Reporting Information Online (HS RIO) injury surveillance system during the 2009 to 2010 academic year were included. χ(2) analyses were conducted for categorical variables. Fisher exact test was used for nonparametric data. Logistic regression analyses were used when adjusting for potential confounders. Statistical significance was considered for P sport-related concussions, representing 14.6% of all injuries. Most (94.4%) concussions were assessed by athletic trainers (ATs), 58.8% by a primary care physician. Few concussions were managed by specialists. The assessment of 21.2% included computed tomography. Computerized neuropsychological testing was used for 41.2%. For 50.1%, a physician decided when to return the athlete to play; for 46.2%, the decision was made by an AT. After adjusting for potential confounders, no associations between timing of return to play and the type of provider (physician vs AT) deciding to return the athlete to play were found. Concussions account for nearly 15% of all sport-related injuries in high school athletes. The timing of return to play after a sport-related concussion is similar regardless of whether the decision to return the athlete to play is made by a physician or an AT. When a medical doctor is involved, most concussions are assessed by primary care physicians as opposed to subspecialists. Computed tomography is obtained during the assessment of 1 of every 5 concussions occurring in high school athletes.
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Zemková, Erika
2014-05-01
This review includes the latest findings based on experimental studies addressing sport-specific balance, an area of research that has grown dramatically in recent years. The main objectives of this work were to investigate the postural sway response to different forms of exercise under laboratory and sport-specific conditions, to examine how this effect can vary with expertise, and to provide examples of the association of impaired balance with sport performance and/or increasing risk of injury. In doing so, sports where body balance is one of the limiting factors of performance were analyzed. While there are no significant differences in postural stability between athletes of different specializations and physically active individuals during standing in a standard upright position (e.g., bipedal stance), they have a better ability to maintain balance in specific conditions (e.g., while standing on a narrow area of support). Differences in magnitude of balance impairment after specific exercises (rebound jumps, repeated rotations, etc.) and mainly in speed of its readjustment to baseline are also observed. Besides some evidence on an association of greater postural sway with the increasing risk of injuries, there are many myths related to the negative influence of impaired balance on sport performance. Though this may be true for shooting or archery, findings have shown that in many other sports, highly skilled athletes are able to perform successfully in spite of increased postural sway. These findings may contribute to better understanding of the postural control system under various performance requirements. It may provide useful knowledge for designing training programs for specific sports.
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Learning through the Adventure of Youth Sport
Newman, Tarkington J.; Kim, Melissa; Tucker, Anita R.; Alvarez, M. Antonio G.
2018-01-01
Background: Participation in youth sport is often associated with a variety of positive development outcomes. In order to effectively utilize sport as a context of learning and development, the sport must be intentionally designed and programed. One often-used approach is known as sport-based positive youth development (PYD). Recently, to further…
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Pattern of sports- and recreation-related spinal cord injuries in Beijing.
Ye, C; Sun, T; Li, J; Zhang, F
2009-12-01
Retrospective study. To determine the characteristics of sports- and recreation-related (SR-related) spinal cord injuries (SCIs) in Beijing. Beijing, China. A review of the complete medical records of 57 consecutive SR-related SCI patients referred to four general hospitals and two rehabilitation institutions was carried out. Patients were injured between 1993 and 2006. The variables studied included demography, sports and recreation characteristics, diagnoses and outcome. There were 44 males and 13 females with a ratio of 3.3:1. The mean age was 24.49+/-11.92 years. In 37 patients (64.9%), water sports was the single most commont cause. Of them, injury because of diving was seen in 34, which constituted 59.6% of the total. Other types of sports and recreation accounted for 35.1%. Level of cord lesion was cervical in 89.5% and thoracic in 10.5% of the injured. The lesion of C4 alone constituted 45.6% of the total. The ratio of complete to incomplete lesion was 1.2:1. In all, two patients died, and one with an injury at the C4 level recovered completely. Of the other 54 survivals, 48 (89%) remained tetraplegic and six remained paraplegic (11%). The main underlying cause was the lack of safety awareness, safety regulations and their implementation. SR-related SCI was most commonly seen among young male adults, predominantly as a result of diving accidents. There was a significant increase in sports injuries, other than those caused by diving, in later years. Successful prevention programs of other countries are being adopted in Beijing in recent years, hence an improvement in safety is expected in the years to come. This work was sponsored by Funding Project for Academic Human Resources Development in Institutions of Higher Learning Under the Jurisdiction of Beijing Municipality(2007) and Funding Project for Science and Technology Development of Beijing Municipality(km200710029003).
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Challenges and threats to implementing the fight against doping in sport.
Dvorak, Jiri; Saugy, Martial; Pitsiladis, Yannis P
2014-05-01
Prominent doping cases in certain sports have recently raised public awareness of doping and reinforced the perception that doping is widespread. Efforts to deal with doping in sport have intensified in recent years, yet the general public believes that the 'cheaters' are ahead of the testers. Therefore, there is an urgent need to change the antidoping strategy. For example, the increase in the number of individual drug tests conducted between 2005 and 2012 was approximately 90 000 and equivalent to an increase of about 50%, yet the number of adverse analytical findings remained broadly the same. There is also a strikingly different prevalence of doping substances and methods in sports such as a 0.03% prevalence of anabolic steroids in football compared to 0.4% in the overall WADA statistics. Future efforts in the fight against doping should therefore be more heavily based on preventative strategies such as education and on the analysis of data and forensic intelligence and also on the experiences of relevant stakeholders such as the national antidoping organisations, the laboratories, athletes or team physicians and related biomedical support staff. This strategy is essential to instigate the change needed to more effectively fight doping in sport.
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Reinforcement Magnitude: An Evaluation of Preference and Reinforcer Efficacy
Trosclair-Lasserre, Nicole M; Lerman, Dorothea C; Call, Nathan A; Addison, Laura R; Kodak, Tiffany
2008-01-01
Consideration of reinforcer magnitude may be important for maximizing the efficacy of treatment for problem behavior. Nonetheless, relatively little is known about children's preferences for different magnitudes of social reinforcement or the extent to which preference is related to differences in reinforcer efficacy. The purpose of the current study was to evaluate the relations among reinforcer magnitude, preference, and efficacy by drawing on the procedures and results of basic experimenta...
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Directory of Open Access Journals (Sweden)
Omer Špirtović
2010-03-01
Full Text Available Word „marketing“ comes from AngloSaxon linguistic domain and implies in a narrow sense the market. Under marketing, we consider certain process, which should create and solve relations of exchange between manufacturers on one side, and consumers on the other. Discussion about sport marketing implies its theoretical definition and generalization, and then its actual definition in sport environment. Sport marketing belongs to business function of sport organization and represents primaly an economical process of connecting produktion (sport organizations with sportsmen and coaches and consumption (sport and other public. Sport marketing is the reality in sport today, and cannot be observed as fashionabless of capitalistic production. Today is almost impossible for sport organization to make business without its business part called sport marketing if it wants to survive in sport arena.
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Variations in relative age effects in individual sports: skiing, figure skating and gymnastics.
Baker, Joseph; Janning, Christina; Wong, Harmonie; Cobley, Stephen; Schorer, Jörg
2014-01-01
In many sports, policy-makers and administrators employ annual cohorts to reduce differences between athletes during childhood and youth. Although well-intended, unintended relative age effects (RAEs) usually occur. RAEs refer to the specific selection, participation and attainment disadvantages associated with participants' birthdates relative to an arbitrary 'cutoff' date used to group participants within annual age groups. To date, we have little understanding of RAEs in individual sports. In this article, Study 1 considered the presence of RAEs in 1474 ski jumping, 7501 cross-country skiing, 15,565 alpine skiing, 4179 snowboarders and 713 Nordic combined athletes. Chi-square analyses revealed significant RAEs for most of these contexts across sexes. In Study 2, RAEs in the aesthetic sports of figure skating (n=502) and female gymnastics (n=612) were considered. There was no effect for the figure skaters and an atypical effect for the gymnasts. The significant effects across most ski sports coupled with the null effects in figure skating and atypical effect in gymnastics suggest that sport-specific contextual factors are important elements in understanding the mechanisms of RAEs, although further work is necessary to validate these findings.
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Sexual Harassment and Manly Sports: Are They Related?
Murolo, Nancy Maurer; Schmelkin, Liora Pedhazur
This study investigates the relationship between sexual harassment and participation in "manly" sports (i.e., football, baseball, basketball, soccer, and wrestling) at the high school level. Manly sports are defined as those sports that celebrate values of dominance, aggression, male solidarity, and female exclusion. Participants were 353 11th-…
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Aggression as Positive Reinforcement in People with Intellectual Disabilities
May, Michael E.
2011-01-01
From an applied behavior-analytic perspective, aggression in people with intellectual disabilities is mostly maintained by social reinforcement consequences. However, nonsocial consequences have also been identified in functional assessments on aggression. Behaviors producing their own reinforcement have been labeled "automatic" or "nonsocial" in…
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Salemink, E.; Wiers, R.W.
2014-01-01
Although studies on explicit alcohol cognitions have identified positive and negative reinforcing drinking motives that are differentially related to drinking indices, such a distinction has received less attention in studies on implicit cognitions. An alcohol-related Word-Sentence Association Task
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van Riemsdijk, Lenka; Ingenbleek, Paul T M; van Trijp, Hans C M; van der Veen, Gerrita
2017-12-14
This article presents a conceptual framework that aims to encourage consumer animal-friendly product choice by introducing positioning strategies for animal-friendly products. These strategies reinforce the animal welfare with different types of consumption values and can therefore reduce consumers' social dilemma, which is a major barrier to animal-friendly consumer choices. The article suggests how animal-friendly products can use various types of consumption values (functional, sensory, emotional, social, epistemic and situational) to create an attractive position relative to their competitors. It also explains why some consumer segments, such as those with a specific thinking style, may experience a stronger effect of some strategies, giving directions on how to approach different types of consumers. Finally, building on research asserting that animal welfare is a credence product attribute, the article proposes moderating effects of two factors that help consumers to evaluate the credibility of animal welfare claims, namely corporate social responsibility strategy and the role of stakeholders. Here it concludes that companies selling animal-friendly products need to be aware of the impact of their overall strategy on the effectiveness of positioning strategies for individual products and that, to gain consumer trust, they may need to collaborate with relevant stakeholders, such as media or animal-interest organizations.
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Directory of Open Access Journals (Sweden)
Lenka van Riemsdijk
2017-12-01
Full Text Available This article presents a conceptual framework that aims to encourage consumer animal-friendly product choice by introducing positioning strategies for animal-friendly products. These strategies reinforce the animal welfare with different types of consumption values and can therefore reduce consumers’ social dilemma, which is a major barrier to animal-friendly consumer choices. The article suggests how animal-friendly products can use various types of consumption values (functional, sensory, emotional, social, epistemic and situational to create an attractive position relative to their competitors. It also explains why some consumer segments, such as those with a specific thinking style, may experience a stronger effect of some strategies, giving directions on how to approach different types of consumers. Finally, building on research asserting that animal welfare is a credence product attribute, the article proposes moderating effects of two factors that help consumers to evaluate the credibility of animal welfare claims, namely corporate social responsibility strategy and the role of stakeholders. Here it concludes that companies selling animal-friendly products need to be aware of the impact of their overall strategy on the effectiveness of positioning strategies for individual products and that, to gain consumer trust, they may need to collaborate with relevant stakeholders, such as media or animal-interest organizations.
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Sports-related dentofacial trauma among high school students in ...
African Journals Online (AJOL)
Objectives: To determine the prevalence and pattern of occurrence of sports - related dentofacial injuries among athletes participating in Rugby and Football in Nairobi, Kenya. Design: A descriptive cross-sectional study. Setting: Seventeen Secondary schools participating in either or both Rugby tournaments and the ...
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Are gross motor skills and sports participation related in children with intellectual disabilities?
Westendorp, Marieke; Houwen, Suzanne; Hartman, Esther; Visscher, Chris
2011-01-01
This study compared the specific gross motor skills of 156 children with intellectual disabilities (ID) (50 ≤ IQ ≥ 79) with that of 255 typically developing children, aged 7-12 years. Additionally, the relationship between the specific gross motor skills and organized sports participation was examined in both groups. The Test of Gross Motor Development-2 and a self-report measure were used to assess children's gross motor skills and sports participation, respectively. The children with ID scored significantly lower on almost all specific motor skill items than the typically developing children. Children with mild ID scored lower on the locomotor skills than children with borderline ID. Furthermore, we found in all groups that children with higher object-control scores participated more in organized sports than children with lower object-control scores. Our results support the importance of attention for well-developed gross motor skills in children with borderline and mild ID, especially to object-control skills, which might contribute positively to their sports participation. Copyright © 2011 Elsevier Ltd. All rights reserved.
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O'Brien, Kerry S; Kolt, Gregory S; Webber, Andrew; Hunter, John A
2010-11-01
High-profile sportspeople are posited as role models for others. We examine whether university sportspeople and non-sportspeople's perceptions of high-profile sportspeople's (sports stars) and friends perceived drinking behaviours are related to their own drinking behaviours. Further, we examine the importance of drinking with competitors after sports events. A convenience sample of 1028 participants (58% females, n=652 sportspeople) from two Australian universities were approached at sporting and university venues. Participants completed a survey booklet containing demographic questions, the Alcohol Use Disorders Identification Test (AUDIT, alcohol measure), perceived drinking of high-profile sportspeople and friends (social norms), and for sportspeople only, items assessing the importance of drinking with competitors. Bivariate and multivariate analyses were used to assess relationships. Both sporting and non-sporting participants perceived high-profile sportspeople to drink less than themselves and their friends. Small significant bivariate relationships were found between high-profile sportspeople's perceived drinking and self-reported drinking for sportspeople (r=0.20, P competitors after sports and games accounted for an additional 6.1% of the unique variance in AUDIT-scores (P<0.0005). Sports stars are touted as negative role models when it comes to drinking. Contrary to expectations high-profile sportspeople were not perceived to be heavy drinkers and their perceived drinking was not predictive of others drinking. Friends' and normative drinking practices were predictors of drinking.[O'Brien KS, Kolt GS, Webber A, Hunter JA. Alcohol consumption in sport: The influence of sporting idols, friends and normative drinking practices. © 2010 Australasian Professional Society on Alcohol and other Drugs.
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Directory of Open Access Journals (Sweden)
Patrick Gaudreau
2016-07-01
Full Text Available This study examined whether the good or bad outcomes associated with mastery-approach (MAP and performance-approach (PAP goals depend on the extent to which they are motivated by autonomous or controlled motivation. A sample of 515 undergraduate students who participated in sport completed measures of achievement goals, motivation of achievement goals, perceived goal attainment, sport satisfaction, and both positive and negative affect. Results of moderated regression analyses revealed that the positive relations of both MAP and PAP goals with perceived goal attainment were stronger for athletes pursuing these goals with high level of autonomous goal motivation. Also, the positive relations between PAP goals and both sport satisfaction and positive affect were stronger at high levels of autonomous goal motivation and controlled goal motivation. The shape of all these significant interactions was consistent with tenets of Self-Determination Theory as controlled goal motivation was negatively associated with positive affect and sport satisfaction and positively associated with negative affect. Overall, these findings demonstrated the importance of considering goal motivation in order to better understand the conditions under which achievement goals are associated with better experiential and performance outcomes in the lives of sport participants.
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Swan, Peter; Otago, Leonie; Finch, Caroline F; Payne, Warren R
2009-01-01
Sport is an important context for physical activity and it is critical that safe environments are provided for such activity. Sports safety is influenced by the presence of sports ground environmental hazards such as ground hardness, poorly maintained playing fields, surface irregularities and the presence of debris/rubbish. To reduce injury risk, sports governing bodies need to ensure regular assessment of grounds safety and the removal of identified hazards. This study describes sports ground safety guidelines and recommendations of a sample of sports governing bodies and provides recommendations for how they could be improved. Semi-structured key informant interviews were conducted with nominees of state governing bodies for Australian football, cricket, soccer and hockey. The use of matchday checklists to identify ground hazards, as mandated by insurance companies was widely promoted across all levels of play. Sports governing bodies had more direct involvement in assessing grounds used for higher level of play, than grounds used for community or junior sport. There was a general presumption that identified hazards on community grounds would be corrected by local councils or clubs before anyone played on them, but this was rarely monitored. Sports governing bodies run the risk of being negligent in their duty of care to sports participants if they do not formally monitor the implementation of their ground safety polices and guidelines. There is also further scope for sports bodies to work closely with insurers to develop ground safety assessment guidelines specific to their sport.
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Does Sport-Drink Use During Exercise Promote an Acute Positive Energy Balance?
Dragusin, Iulian B; Horswill, Craig A
2016-10-01
Sports drinks have been implicated in contributing to obesity and chronic diseases by providing surplus calories and excess sugars. Using existing literature we compared energy intake from sports drinks consumed during exercise with the exercise-induced calorie expenditure to determine whether sports drink use might eliminate the energy deficit and jeopardize conditions for improved metabolic fitness. We identified 11 published studies that compared sport drink consumption to placebo during exercise with a primary focused on the effect of sport drinks or total carbohydrate content on enhancing physical performance. Energy expenditure (EE) was calculated using VO 2 , RER, and exercise duration for the exercise protocol. Energy ingestion (EI) was determined using the carbohydrate dosing regimen administered before and during the exercise protocol. A two-tailed t test was used to test whether the energy balance (EI-EE) was different from zero (alpha level = 0.05). Sport drink consumption during aerobic exercise of sufficient duration (≥ 60 min) did not abolish the energy deficit (p sports drinks to enhance performance did not abolish the caloric deficit of aerobic exercise. Sports drinks can be used in accordance with research protocols that typically provide 30-60 g of carbohydrate per hour when exercising at adequate durations for moderate to high intensity and still maintain a substantive caloric deficit.
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Marinelli, M; Barrot, M; Simon, H; Oberlander, C; Dekeyne, A; Le Moal, M; Piazza, P V
1998-10-01
Opioid peptides, through mu and delta receptors, play an important part in reward. In contrast, the role of kappa receptors is more controversial. We examined the possible positive reinforcing effects of a selective kappa agonist, RU 51599, by studying intravenous self-administration in the rat. The effect of RU 51599 on dopamine release in the nucleus accumbens was also studied, as opioids and dopamine seem to interact in the mediation of reward. The behavioural and dopaminergic effects of RU 51599 were compared with those of the mu agonist heroin. Rats self-administered both RU 51599 (6.5, 20 and 60 microg/inj) and heroin (30 microg/inj) at low ratio requirement. When the ratio requirement, i.e. the number of responses necessary to receive one drug infusion, was increased, self-administration of RU 51599 rapidly extinguished, whereas self-administration of heroin was maintained. Intravenous infusion of RU 51599 (100, 200 and 400 microg) dose-dependently decreased (25, 30 and 40%, respectively) extracellular concentrations of dopamine, as measured by means of microdialysis in freely moving rats. In contrast, heroin increased accumbens dopamine (130% over baseline). These results indicate that kappa receptors, similarly to mu ones, can mediate positive reinforcing effects of opioid peptides. However, the strength of the reinforcement is very low for kappa receptors. This suggests that changes in accumbens dopamine do not correlate with the capacity of a stimulus to induce reward or aversion. In contrast, a parallel seems to exist between an increase in accumbens dopamine and the drive to reach or obtain a positive reinforcer.
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Fabrication and characterization of S. cilliare fibre reinforced
Indian Academy of Sciences (India)
In the recent times, there has been an ever-increasing interest in green composite materials for its applications in the field of industries, aerospace, sports, household etc and in many other fields. In this paper, fabrication of Saccharum cilliare fibre reinforced green polymer composites using resorcinol formaldehyde (RF) as ...
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Psychosocial development through Masters sport: What can be gained from youth sport models?
Dionigi, Rylee A; Fraser-Thomas, Jessica; Stone, Rachael C; Gayman, Amy M
2018-07-01
Although sport participation is encouraged throughout the lifespan, little research has been conducted on the role of sport in development later in life. This qualitative study explored adults' experiences of development within the context of Masters sport. We interviewed 14 adults (nine men and five women) aged 46-61 years involved in Masters sport. Data was interpreted drawing upon frameworks from youth sport (i.e., Personal Assets Framework for Sport; Côté, J., Bruner, M., Strachan, L., Erickson, K., & Fraser-Thomas, J. (2010). Athletes' development and coaching. In J. Lyle & C. Cushion (Eds.), Sport coaching: Professionalism and practice (pp. 63-83). Oxford, UK: Elsevier, Côté, J., Turnnidge, J., & Evans, M. B. (2014). The dynamic process of development through sport. Kinesiologia Slovenica, 20(3), 14-26, Côté, J., Turnnidge, J., & Vieerima, M. (2016). A personal assets approach to youth sport. In K. Green & A. Smith (Eds.), Routledge handbook of youth sport (pp. 243-255). New York, NY: Routledge; 4/5Cs of positive youth development; Lerner, R. M., Fisher, C. B., & Weinberg, R. A. (2000). Toward a science for and of the people: Promoting civil society through the application of developmental science. Child Development, 71(1), 11-20. doi:10.1111/1467-8624.00113; Vierimaa, M., Erickson, K., Côté, J., & Gilbert, W. (2012). Positive youth development: A measurement framework for sport. International Journal of Sports Science & Coaching, 7(3), 601-614. doi:10.1260/1747-9541.7.3.601), combined with past research on mid-life and older athletes. Six key themes emerged as contributing to adults' personal development through sport: competence and confidence, character, commitment, connection, cognition, and challenge. Masters sport contexts appeared to facilitate changes in assets (i.e., 6Cs) similar to those within youth sport, but assets often held different meanings within the context of later life. Applying frameworks from youth sport and developmental
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Directory of Open Access Journals (Sweden)
Niels Hermens
2015-06-01
Full Text Available Research shows that participation in sport is positively related to self-esteem, self-regulation skills, and social inclusion. As socially vulnerable youngsters participate less frequently in sports activities than their average peers, youth work organisations try to guide their clients (i.e., socially vulnerable youngsters to local sports clubs and inclusive sports activities. Inclusive sports activities, however, cannot be provided by youth work organisations alone. Therefore, in the Netherlands, intersectoral action involving both youth work organisations and local sports clubs has emerged. Because youth workers and stakeholders in local sports clubs are not used to collaborating with each other, we explored the factors that contribute to the quality and performance of such intersectoral actions. On the basis of five open interviews with youth workers and three focus groups with stakeholders in local sports clubs, we described factors relating to the organisation of intersectoral action among youth workers and local sports clubs that are preconditions for the success of this specific type of intersectoral action.
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Patricios, Jon S; Hislop, Michael David; Aubry, Mark; Bloomfield, Paul; Broderick, Carolyn; Clifton, Patrick; Ellenbogen, Richard G; Falvey, Éanna Cian; Grand, Julie; Hack, Dallas; Harcourt, Peter Rex; Hughes, David; McGuirk, Nathan; Meeuwisse, Willem; Miller, Jeffrey; Parsons, John T; Richiger, Simona; Sills, Allen; Moran, Kevin B; Shute, Jenny; Raftery, Martin
2018-01-01
The 2017 Berlin Concussion in Sport Group Consensus Statement provides a global summary of best practice in concussion prevention, diagnosis and management, underpinned by systematic reviews and expert consensus. Due to their different settings and rules, individual sports need to adapt concussion guidelines according to their specific regulatory environment. At the same time, consistent application of the Berlin Consensus Statement’s themes across sporting codes is likely to facilitate superior and uniform diagnosis and management, improve concussion education and highlight collaborative research opportunities. This document summarises the approaches discussed by medical representatives from the governing bodies of 10 different contact and collision sports in Dublin, Ireland in July 2017. Those sports are: American football, Australian football, basketball, cricket, equestrian sports, football/soccer, ice hockey, rugby league, rugby union and skiing. This document had been endorsed by 11 sport governing bodies/national federations at the time of being published. PMID:29500252
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Sports-related concussion relevant to the South African football ...
African Journals Online (AJOL)
with any combination of physical, cognitive, emotional and sleep- related symptom ... depressed affect, fatigue and drowsiness. The last 8 years ... vulnerability, making the brain less able to respond adequately to a second injury .... Decisions regarding returning to sport will be made taking into consideration your individual ...
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Three phase bone scan in sports injuries
International Nuclear Information System (INIS)
Chauhan, M.S.; Chowhan, M.
2007-01-01
Full text: Sports injuries are common in individual who participate in sports and exercise related activities. In majority of sports related injuries such as stress fracture, periosteitits, acute stress reaction of bone, the radiological investigations are usually normal in early stages. These injuries can lead to serious complications if not detected early and managed properly. This study was jointly carried out in premier medical institutes. All patients were referred from premier sports institute of the country and also by orthopedic surgeons. All patients were subjected for relevant radiological investigations and 3 phase bone scan. Total number of cases included in this study was 70 (N=70) among which bone scan was positive for stress fracture in 45 patients and shin splint was detected in 15 patients and avulsion injury seen in 3 patients. However, only one patient showed features of avulsion injury in X ray and in 1 patient X-ray was inconclusive. Conclusion:-The study shows that 3 phase bone scan is the most sensitive and relatively an inexpensive study. Bone scan has the ability for early detection of sports injuries and provide physiological information and evaluate multiple sites in single examination.SPECT study will help in the diagnostic specificity. (author)
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Møller, Jane Ege; Malling, Bente Vigh
2018-04-27
Studies suggest that the workplace is a key to understanding how clinical communication skills learning takes place and that medical communication skills need to be reinforced over time in order not to deteriorate. This study explored the perceptions of doctors in four hospital departments who participated in a workplace-based communication training project. Its specific focus was the relationship between collegial relations and learning communication skills. The study applied a qualitative design using an ethnographic methodology, i.e. interviews and observations. Positioning theory was used as the theoretical framework. Training communication skills with colleagues in the actual workplace setting was valued by the participants who experienced more sharing of communication challenges, previously understood as something private one would not share with colleagues. However, collegial relations were also barriers for providing critical feedback, especially from junior doctors to their seniors. The position as "colleague" both reinforced the communication skills training and hindered it. The communication skills educational model had a flat, non-hierarchical structure which disturbed the hierarchical structure of the workplace, and its related positions.
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What is the definition of sports-related concussion: a systematic review.
McCrory, Paul; Feddermann-Demont, Nina; Dvořák, Jiří; Cassidy, J David; McIntosh, Andrew; Vos, Pieter E; Echemendia, Ruben J; Meeuwisse, Willem; Tarnutzer, Alexander A
2017-06-01
Various definitions for concussion have been proposed, each having its strengths and weaknesses. We reviewed and compared current definitions and identified criteria necessary for an operational definition of sports-related concussion (SRC) in preparation of the 5th Concussion Consensus Conference (Berlin, Germany). We also assessed the role of biomechanical studies in informing an operational definition of SRC. This is a systematic literature review. Data sources include MEDLINE, Embase, Cumulative Index to Nursing and Allied Health Literature, Cochrane Central Register of Clinical Trials and SPORT Discus (accessed 14 September 2016). Eligibility criteria were studies reporting (clinical) criteria for diagnosing SRC and studies containing SRC impact data. Out of 1601 articles screened, 36 studies were included (2.2%), 14 reported on criteria for SRC definitions and 22 on biomechanical aspects of concussions. Six different operational definitions focusing on clinical findings and their dynamics were identified. Biomechanical studies were obtained almost exclusively on American football players. Angular and linear head accelerations linked to clinically confirmed concussions demonstrated considerable individual variation. SRC is a traumatic brain injury that is defined as a complex pathophysiological process affecting the brain, induced by biomechanical forces with several common features that help define its nature. Limitations identified include that the current criteria for diagnosing SRC are clinically oriented and that there is no gold/standard to assess their diagnostic properties. A future, more valid definition of SRC would better identify concussed players by demonstrating high predictive positive/negative values. Currently, the use of helmet-based systems to study the biomechanics of SRC is limited to few collision sports. New approaches need to be developed to provide objective markers for SRC. © Article author(s) (or their employer(s) unless otherwise
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Origins of food reinforcement in infants12345
Kong, Kai Ling; Feda, Denise M; Eiden, Rina D; Epstein, Leonard H
2015-01-01
Background: Rapid weight gain in infancy is associated with a higher risk of obesity in children and adults. A high relative reinforcing value of food is cross-sectionally related to obesity; lean children find nonfood alternatives more reinforcing than do overweight/obese children. However, to our knowledge, there is no research on how and when food reinforcement develops. Objective: This study was designed to assess whether the reinforcing value of food and nonfood alternatives could be tested in 9- to 18-mo-old infants and whether the reinforcing value of food and nonfood alternatives is differentially related to infant weight status. Design: Reinforcing values were assessed by using absolute progressive ratio schedules of reinforcement, with presentation of food and nonfood alternatives counterbalanced in 2 separate studies. Two nonfood reinforcers [Baby Einstein–Baby MacDonald shows (study 1, n = 27) or bubbles (study 2, n = 30)] were tested against the baby’s favorite food. Food reinforcing ratio (FRR) was quantified by measuring the reinforcing value of food (Food Pmax) in proportion to the total reinforcing value of food and a nonfood alternative (DVD Pmax or BUB Pmax). Results: Greater weight-for-length z score was associated with a greater FRR of a favorite food in study 1 (FRR-DVD) (r = 0.60, P positively associated with FRR-DVD (r = 0.57, P = 0.009) and FRR-BUB (r = 0.37, P = 0.047). Conclusions: Our newly developed paradigm, which tested 2 different nonfood alternatives, demonstrated that lean infants find nonfood alternatives more reinforcing than do overweight/obese infants. This observation suggests that strengthening the alternative reinforcers may have a protective effect against childhood obesity. This research was registered at clinicaltrials.gov as NCT02229552. PMID:25733636
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Sports participation of individuals with major upper limb deficiency.
Bragaru, Mihai; Dekker, Rienk; Dijkstra, Pieter U; Geertzen, Jan H B; van der Sluis, Corry K
2015-03-01
The aim of this study was to analyse sports participation of individuals with upper limb deficiency (ULD) and associated factors. Individuals with ULD originating from the Netherlands were invited, via their attending physiatrist or prosthetist, to answer a digital or paper questionnaire. The questionnaire consisted of 34 items related to personal characteristics, type of deficiency and participation in sports. Of the 175 respondents, 57% participated in sports for at least 60 min/week (athletes). Results of logistic regression analyses indicated that the presence of an additional health problem hindering sports participation (β=-1.31, psports participation. For individuals with an acquired ULD, a medium education level (β=0 0.77, p=0.108) and participation in sports before their amputation (β=1.11, p=0.007) had a positive influence on sports participation. The desire to stay healthy and the pleasure derived from sports participation represented the main reasons for participation in sports according to athletes. The presence of an additional medical problem and a lack of motivation were reasons for non-athletes to not participate in sports. The majority of individuals with ULD participate in sports regularly. The presence of an additional medical problem, as well as the level of ULD, educational level and participation in sports before amputation, was related to participation in sports. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.
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Rodriguez, Nancy R; DiMarco, Nancy M; Langley, Susie
2009-03-01
It is the position of the American Dietetic Association, Dietitians of Canada, and the American College of Sports Medicine that physical activity, athletic performance, and recovery from exercise are enhanced by optimal nutrition. These organizations recommend appropriate selection of foods and fluids, timing of intake, and supplement choices for optimal health and exercise performance. This updated position paper couples a rigorous, systematic, evidence-based analysis of nutrition and performance-specific literature with current scientific data related to energy needs, assessment of body composition, strategies for weight change, nutrient and fluid needs, special nutrient needs during training and competition, the use of supplements and ergogenic aids, nutrition recommendations for vegetarian athletes, and the roles and responsibilities of sports dietitians. Energy and macronutrient needs, especially carbohydrate and protein, must be met during times of high physical activity to maintain body weight, replenish glycogen stores, and provide adequate protein to build and repair tissue. Fat intake should be sufficient to provide the essential fatty acids and fat-soluble vitamins, as well as contribute energy for weight maintenance. Although exercise performance can be affected by body weight and composition, these physical measures should not be a criterion for sports performance and daily weigh-ins are discouraged. Adequate food and fluid should be consumed before, during, and after exercise to help maintain blood glucose concentration during exercise, maximize exercise performance, and improve recovery time. Athletes should be well hydrated before exercise and drink enough fluid during and after exercise to balance fluid losses. Sports beverages containing carbohydrates and electrolytes may be consumed before, during, and after exercise to help maintain blood glucose concentration, provide fuel for muscles, and decrease risk of dehydration and hyponatremia. Vitamin
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Sport related stress fracture of the clavicle with non-union: Case report and review
Constantinou, Demitri; Kastanos, Konstantinos
2008-01-01
Stress fractures are relatively uncommon sports injuries and when they do occur, are mostly found in the lower limb. Stress fractures of the clavicle are particularly rare, having been described in a number of non-sport related pathologies, such as nervous tics and post radical neck dissection. In sport, there have only been seven cases reported in the literature. We report on a clavicle stress fracture in a 47-year-old male, partaking in recreational weight lifting activities. This is the first reported case of a non-union stress fracture of the clavicle. The patient underwent an open reduction and internal fixation and made a full recovery. PMID:21264151
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The Role of Ankle Proprioception for Balance Control in relation to Sports Performance and Injury.
Han, Jia; Anson, Judith; Waddington, Gordon; Adams, Roger; Liu, Yu
2015-01-01
Balance control improvement is one of the most important goals in sports and exercise. Better balance is strongly positively associated with enhanced athletic performance and negatively associated with lower limb sports injuries. Proprioception plays an essential role in balance control, and ankle proprioception is arguably the most important. This paper reviews ankle proprioception and explores synergies with balance control, specifically in a sporting context. Central processing of ankle proprioceptive information, along with other sensory information, enables integration for balance control. When assessing ankle proprioception, the most generalizable findings arise from methods that are ecologically valid, allow proprioceptive signals to be integrated with general vision in the central nervous system, and reflect the signal-in-noise nature of central processing. Ankle proprioceptive intervention concepts driven by such a central processing theory are further proposed and discussed for the improvement of balance control in sport.
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Hermens, N.J.; Super, S.; Verkooijen, K.T.; Koelen, M.
2015-01-01
Research shows that participation in sport is positively related to self-esteem, self-regulation skills, and social inclusion. As socially vulnerable youngsters participate less frequently in sports activities than their average peers, youth work or-ganisations try to guide their clients (i.e.,
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Dietary restraint, anxiety, and the relative reinforcing value of snack food in non-obese women.
Goldfield, Gary S; Legg, Christine
2006-11-01
This study tested the independent and interactive effects of anxiety and dietary restraint on the relative reinforcing value of snack food. Thirty non-obese, female university students were assigned to one of four groups based on median split scores on measures of dietary restraint and state-anxiety: low-restraint/low-anxiety (n=7), low-restraint/high-anxiety (n=7), high-restraint/low-anxiety (n=9), and high-restraint/high-anxiety (n=7). Participants were provided the choice to earn points for palatable snack foods or fruits and vegetables using a computerized concurrent schedules choice task. The behavioural cost to gain access to snack foods increased across trials, whereas the cost to gain access to fruits and vegetables was held constant across trials. The relative reinforcing value of palatable snack food in relation to fruits and vegetables was defined as the total amount of points earned for snack food. Two-way analysis of covariance, with hunger and hedonic snack food ratings as covariates, showed that dietary restraint and anxiety had a significant interactive effect on the relative reinforcing value of snack food, indicating that the effect of anxiety on snack food reinforcement is moderated by dietary restraint. Specifically, the high-anxiety/low-restraint women found snack food significantly less reinforcing than low-anxiety/low-restraint women, but no differences emerged between high- and low-anxiety women with high-restraint. Neither restraint nor anxiety had an independent effect on the relative reinforcing value of snack food. These findings indicate that anxiety may have a suppressive effect on the relative reinforcing value of snack food in low-restrained eaters, but not an enhancing effect on snack food reinforcement in high-restrained eaters. Clinical implications of these findings are discussed.
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Hunger neurons drive feeding through a sustained, positive reinforcement signal.
Chen, Yiming; Lin, Yen-Chu; Zimmerman, Christopher A; Essner, Rachel A; Knight, Zachary A
2016-08-24
The neural mechanisms underlying hunger are poorly understood. AgRP neurons are activated by energy deficit and promote voracious food consumption, suggesting these cells may supply the fundamental hunger drive that motivates feeding. However recent in vivo recording experiments revealed that AgRP neurons are inhibited within seconds by the sensory detection of food, raising the question of how these cells can promote feeding at all. Here we resolve this paradox by showing that brief optogenetic stimulation of AgRP neurons before food availability promotes intense appetitive and consummatory behaviors that persist for tens of minutes in the absence of continued AgRP neuron activation. We show that these sustained behavioral responses are mediated by a long-lasting potentiation of the rewarding properties of food and that AgRP neuron activity is positively reinforcing. These findings reveal that hunger neurons drive feeding by transmitting a positive valence signal that triggers a stable transition between behavioral states.
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Fridman, Liraz; Fraser-Thomas, Jessica L; McFaull, Steven R; Macpherson, Alison K
2013-12-23
Although injuries related to sports and recreation represent a significant burden to children and youth, few studies have examined the descriptive epidemiology of sports-related injury since 2005, and some sports such as ringette have not been evaluated to date. The primary purpose of this study was to provide the descriptive epidemiology of sports-related injuries treated in emergency departments for children and youth aged 5 - 19. A retrospective data analysis was performed using data from the Canadian Hospitals Injury Reporting and Prevention Program [CHIRPP] from fiscal years (April - March) 2007/08 to 2009/10. CHIRPP is a computerized information system designed by the Public Health Agency of Canada that collects information about injuries to people evaluated in emergency departments across 11 pediatric hospitals and 5 general hospitals in Canada. Thirteen sports or activities were analyzed (baseball, basketball, cycling, football, ice hockey, lacrosse, ringette, rugby, skiing, sledding, snowboarding, soccer, and volleyball). Descriptive statistics, including frequency by sport, age and sex, as well as the percent of concussions within each sport were calculated. Out of a total of 56, 691 reported sports and recreational injuries, soccer accounted for the largest proportion of injuries with 11,941 reported cases over the 3 year time period. Of these, approximately 30% were fractures. The 10 - 14 year age group reported the greatest proportion of injuries in 10 out of the 13 sports analyzed. In addition, males reported a greater number of overall injuries than females in 11 out of the 13 sports analyzed. The largest percentage of concussions was reported in ringette; these injuries accounted for 17.1% of overall injuries within this sport. Injury prevention programs in Canada should focus on improving evidence-based programs to reduce the burden of injuries in all sports.
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Population levels of sport participation: implications for sport policy
Directory of Open Access Journals (Sweden)
R. M. Eime
2016-08-01
Full Text Available Abstract Background Participation in sport can contribute to health-enhancing levels of leisure-time physical activity. There are recent reports that participation in sport in Australia is decreasing. However, these studies are limited to ages 15 years and over. Methods This study integrates sports club membership data from five popular team sports and investigates sport participation across the lifespan (4–100 years by sex and region (metropolitan/non-metropolitan. Results Overall participant numbers per annum increased from 414,167 in 2010 to 465,403 in 2012 corresponding to a rise in the proportion of Victorian’s participating in these sports from 7.5 % in 2010 to 8.3 % in 2012. The highest proportion of participants was in the 10–14 year age range, with participation rates of 36 % in 2010 and 40 % in 2012. There was a considerably lower participation rate in the 15–19 year age group compared to the 10–14 age group, in all three years studied, and the decline continued progressively with increasing age. Male and female age profiles of participation were generally similar in shape, but the female peak at age 10–14 was sharper than for the males, and conversely there were very few 4 year old female participants. Participation rates were generally higher in non-metropolitan than metropolitan areas; the difference increased with increasing age from 4 to 34 years, then steadily declined, reaching parity at around 60 years of age. Conclusions It is a positive sign that participation in these popular sports increased by over 50,000 participants from 2010 to 2012. Large proportions of the population aged 5–14 participate in club based sport. Participation rates decline sharply in late adolescence, particularly for females, and while this may not be a concern from a broad health perspective so long as they transition into other forms of physical activity, it is certainly a matter of concern for the sport sector. It is recommended
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Sport-Related Concussion Alters Indices of Dynamic Cerebral Autoregulation
Directory of Open Access Journals (Sweden)
Alexander D. Wright
2018-03-01
Full Text Available Sport-related concussion is known to affect a variety of brain functions. However, the impact of this brain injury on cerebral autoregulation (CA is poorly understood. Thus, the goal of the current study was to determine the acute and cumulative effects of sport-related concussion on indices of dynamic CA. Toward this end, 179 elite, junior-level (age 19.6 ± 1.5 years contact sport (ice hockey, American football athletes were recruited for preseason testing, 42 with zero prior concussions and 31 with three or more previous concussions. Eighteen athletes sustained a concussion during that competitive season and completed follow-up testing at 72 h, 2 weeks, and 1 month post injury. Beat-by-beat arterial blood pressure (BP and middle cerebral artery blood velocity (MCAv were recorded using finger photoplethysmography and transcranial Doppler ultrasound, respectively. Five minutes of repetitive squat–stand maneuvers induced BP oscillations at 0.05 and 0.10 Hz (20- and 10-s cycles, respectively. The BP–MCAv relationship was quantified using transfer function analysis to estimate Coherence (correlation, Gain (amplitude ratio, and Phase (timing offset. At a group level, repeated-measures ANOVA indicated that 0.10 Hz Phase was significantly reduced following an acute concussion, compared to preseason, by 23% (−0.136 ± 0.033 rads at 72 h and by 18% (−0.105 ± 0.029 rads at 2 weeks post injury, indicating impaired autoregulatory functioning; recovery to preseason values occurred by 1 month. Athletes were cleared to return to competition after a median of 14 days (range 7–35, implying that physiologic dysfunction persisted beyond clinical recovery in many cases. When comparing dynamic pressure buffering between athletes with zero prior concussions and those with three or more, no differences were observed. Sustaining an acute sport-related concussion induces transient impairments in the capabilities of the cerebrovascular
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Sport-Related Concussion Alters Indices of Dynamic Cerebral Autoregulation.
Wright, Alexander D; Smirl, Jonathan D; Bryk, Kelsey; Fraser, Sarah; Jakovac, Michael; van Donkelaar, Paul
2018-01-01
Sport-related concussion is known to affect a variety of brain functions. However, the impact of this brain injury on cerebral autoregulation (CA) is poorly understood. Thus, the goal of the current study was to determine the acute and cumulative effects of sport-related concussion on indices of dynamic CA. Toward this end, 179 elite, junior-level (age 19.6 ± 1.5 years) contact sport (ice hockey, American football) athletes were recruited for preseason testing, 42 with zero prior concussions and 31 with three or more previous concussions. Eighteen athletes sustained a concussion during that competitive season and completed follow-up testing at 72 h, 2 weeks, and 1 month post injury. Beat-by-beat arterial blood pressure (BP) and middle cerebral artery blood velocity (MCAv) were recorded using finger photoplethysmography and transcranial Doppler ultrasound, respectively. Five minutes of repetitive squat-stand maneuvers induced BP oscillations at 0.05 and 0.10 Hz (20- and 10-s cycles, respectively). The BP-MCAv relationship was quantified using transfer function analysis to estimate Coherence (correlation), Gain (amplitude ratio), and Phase (timing offset). At a group level, repeated-measures ANOVA indicated that 0.10 Hz Phase was significantly reduced following an acute concussion, compared to preseason, by 23% (-0.136 ± 0.033 rads) at 72 h and by 18% (-0.105 ± 0.029 rads) at 2 weeks post injury, indicating impaired autoregulatory functioning; recovery to preseason values occurred by 1 month. Athletes were cleared to return to competition after a median of 14 days (range 7-35), implying that physiologic dysfunction persisted beyond clinical recovery in many cases. When comparing dynamic pressure buffering between athletes with zero prior concussions and those with three or more, no differences were observed. Sustaining an acute sport-related concussion induces transient impairments in the capabilities of the cerebrovascular pressure
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Patricios, Jon S; Ardern, Clare L; Hislop, Michael David; Aubry, Mark; Bloomfield, Paul; Broderick, Carolyn; Clifton, Patrick; Echemendia, Ruben J; Ellenbogen, Richard G; Falvey, Éanna Cian; Fuller, Gordon Ward; Grand, Julie; Hack, Dallas; Harcourt, Peter Rex; Hughes, David; McGuirk, Nathan; Meeuwisse, Willem; Miller, Jeffrey; Parsons, John T; Richiger, Simona; Sills, Allen; Moran, Kevin B; Shute, Jenny; Raftery, Martin
2018-05-01
The 2017 Berlin Concussion in Sport Group Consensus Statement provides a global summary of best practice in concussion prevention, diagnosis and management, underpinned by systematic reviews and expert consensus. Due to their different settings and rules, individual sports need to adapt concussion guidelines according to their specific regulatory environment. At the same time, consistent application of the Berlin Consensus Statement's themes across sporting codes is likely to facilitate superior and uniform diagnosis and management, improve concussion education and highlight collaborative research opportunities. This document summarises the approaches discussed by medical representatives from the governing bodies of 10 different contact and collision sports in Dublin, Ireland in July 2017. Those sports are: American football, Australian football, basketball, cricket, equestrian sports, football/soccer, ice hockey, rugby league, rugby union and skiing. This document had been endorsed by 11 sport governing bodies/national federations at the time of being published. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.
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Properties of sports competitions and relation to market value
Tribušon , Matic
2018-01-01
Sports are a very popular type of entertainment around the world. Consequently, they have become very important from a business perspective. In this thesis, we research the influence of sports competition competitive balance on its market value. The aim is to determine the competitive balance of various sports competitions and explore the correlation between competitive balance and market value of sports competitions. We propose a method for assessing competitive balance of an arbitrary team ...
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Reinforcement Magnitude: An Evaluation of Preference and Reinforcer Efficacy
Trosclair-Lasserre, Nicole M.; Lerman, Dorothea C.; Call, Nathan A.; Addison, Laura R.; Kodak, Tiffany
2008-01-01
Consideration of reinforcer magnitude may be important for maximizing the efficacy of treatment for problem behavior. Nonetheless, relatively little is known about children's preferences for different magnitudes of social reinforcement or the extent to which preference is related to differences in reinforcer efficacy. The purpose of the current…
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Sex Differences in Time to Return-to-Play Progression After Sport-Related Concussion.
Stone, Sarah; Lee, Bobby; Garrison, J Craig; Blueitt, Damond; Creed, Kalyssa
2016-10-03
Recently, female sports participation has increased, and there is a tendency for women to experience more symptoms and variable presentation after sport-related concussion (SRC). The purpose of this study was to determine whether sex differences exist in time to begin a return-to-play (RTP) progression after an initial SRC. After initial SRC, female athletes (11-20 years old) would take longer to begin an RTP progression compared with age-matched male athletes. Retrospective cohort study. Level 3. A total of 579 participants (365 males [mean age, 15.0 ± 1.7 years], 214 females [mean age, 15.2 ± 1.5 years]), including middle school, high school, and collegiate athletes who participated in various sports and experienced an initial SRC were included and underwent retrospective chart review. The following information was collected: sex, age at injury, sport, history of prior concussion, date of injury, and date of initiation of RTP progression. Participants with a history of more than 1 concussion or injury sustained from non-sport-related activity were excluded. Despite American football having the greatest percentage (49.2%) of sport participation, female athletes took significantly longer to start an RTP progression after an initial SRC (29.1 ± 26.3 days) compared with age-matched male athletes (22.7 ± 18.3 days; P = 0.002). On average, female athletes took approximately 6 days longer to begin an RTP progression compared with age-matched male athletes. This suggests that sex differences exist between athletes, ages 11 to 20 years, with regard to initiation of an RTP progression after SRC. Female athletes may take longer to recover after an SRC, and therefore, may take longer to return to sport. Sex should be considered as part of the clinical decision-making process when determining plan of care for this population. © 2016 The Author(s).
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DEFF Research Database (Denmark)
Hahn, Thomas; Foldspang, Anders
1998-01-01
STUDY OBJECTIVE: To estimate the prevalence of knee pain in active athletes and to investigate potential associations to type, amount and duration of sports participation. MEASUREMENTS: 339 athletes gave information about occupation, sports activity and different features of knee pain, based...... on a self-filled questionnaire. MAIN RESULTS: The prevalence of knee pain within the preceding 12 months, constant or recurrent knee pain, absence from sport and absence from work due to knee pain, was 54%, 34%, 19% and 4%, respectively. Knee pain was positively associated with years of jogging...... and with weekly hours of participation in competitive gymnastics but negatively with weekly hours of tennis. Constant or recurrent knee pain was positively associated with years of swimming. Absence from sport due to knee pain was positively associated with weekly hours of soccer participation. CONCLUSIONS: Knee...
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Karusisi, Noëlla; Thomas, Frédérique; Méline, Julie; Chaix, Basile
2013-04-20
Physical activity is considered as a major component of a healthy lifestyle. However, few studies have examined the relationships between the spatial accessibility to sport facilities and sport practice with a sufficient degree of specificity. The aim of this study was to investigate the associations between the spatial accessibility to specific types of sports facilities and the practice of the corresponding sports after carefully controlling for various individual socio-demographic characteristics and neighborhood socioeconomic variables. Data from the RECORD Study involving 7290 participants recruited in 2007-2008, aged 30-79 years, and residing in the Paris metropolitan area were analyzed. Four categories of sports were studied: team sports, racket sports, swimming and related activities, and fitness. Spatial accessibility to sport facilities was measured with two complementary approaches that both take into account the street network (distance to the nearest facility and count of facilities around the dwelling). Associations between the spatial accessibility to sport facilities and the practice of the corresponding sports were assessed using multilevel logistic regression after adjusting for individual and contextual characteristics. High individual education and high household income were associated with the practice of racket sports, swimming or related activities, and fitness over the previous 7 days. The spatial accessibility to swimming pools was associated with swimming and related sports, even after adjustment for individual/contextual factors. The spatial accessibility to facilities was not related to the practice of other sports. High neighborhood income was associated with the practice of a racket sport and fitness. Accessibility is a multi-dimensional concept that integrates educational, financial, and geographical aspects. Our work supports the evidence that strategies to increase participation in sport activities should improve the spatial and
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The Role of Ankle Proprioception for Balance Control in relation to Sports Performance and Injury
Han, Jia; Waddington, Gordon; Adams, Roger; Liu, Yu
2015-01-01
Balance control improvement is one of the most important goals in sports and exercise. Better balance is strongly positively associated with enhanced athletic performance and negatively associated with lower limb sports injuries. Proprioception plays an essential role in balance control, and ankle proprioception is arguably the most important. This paper reviews ankle proprioception and explores synergies with balance control, specifically in a sporting context. Central processing of ankle proprioceptive information, along with other sensory information, enables integration for balance control. When assessing ankle proprioception, the most generalizable findings arise from methods that are ecologically valid, allow proprioceptive signals to be integrated with general vision in the central nervous system, and reflect the signal-in-noise nature of central processing. Ankle proprioceptive intervention concepts driven by such a central processing theory are further proposed and discussed for the improvement of balance control in sport. PMID:26583139
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Motivation and motoric tests in sports.
Karaba-Jakovljević, Dea; Popadić-Gaćesa, Jelena; Grujić, Nikola; Barak, Otto; Drapsin, Miodrag
2007-01-01
Motivation in sport performance has been an interesting topic for many investigators during the past decade. This area can be considered from different viewpoints: motivation for participation in sport activity, achievement motivation, competitiveness etc. Motivation plays an important role in all out tests, as well as in sport activities and at all levels of competition. Motivation climate, or positive social environment may influence and modulate motivation of individuals involved in sports. Experience has shown that conventional encouragement and feedback during the test may affect its outcome. According to Wingate research team recommendations, verbal encouragement, as a motivation factor, was given to all examined subjects during Wingate anaerobic test, which is considered the most reliable test for assessing anaerobic capacity. The investigated group consisted of 30 young men--medical students, who were not actively involved in any programmed sport activity. The investigated group included second-year students of the Faculty of Medicine in Novi Sad chosen by random sampling. The Wingate anaerobic test was performed in all subjects, and changes of parameters when test was performed with verbal encouragement, were recorded The results show statistically significant increase of Wingate test parameters when conducted with verbal encouragement: anaerobic power (622/669 W); relative anaerobic power (7.70/8.27 W/kg); slope of the power (95.5/114 W/s); relative slope of the power (1.18/1.40 W/s/kg); anaerobic capacity (12.7/13.2 kJ) and relative anaerobic capacity (158/164 J/kg).
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Effect of investment on financial and sports results
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Mijatović Predrag
2015-01-01
Full Text Available This study investigated the correlation between investment, financial results and sport results achieved and to evaluate the relative efficiency of Serbian football clubs. In this regard, two postulations were examined: firstly, investments in football clubs produce better sports results; secondly, investments in football clubs result in a stronger financial position. A correlation analysis and Data Envelopment Analysis (CCR model were applied. Thirteen football clubs were included in the analysis, which represents eighty per cent of the Serbian Football League First Division Clubs. The study was conducted in the period 2009-2011that includes football seasons 2009-2010, 2010-2011 and 2011-2012. A strong positive correlation between investment and sport results was found only for the top football clubs, while the econometric regression did not show any correlation. The findings also show that there is no relation between investment and net income. The analysis of technical efficiency confirmed these findings, which revealed that the best football clubs are usually the farthest away from the efficiency frontier.
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Computerized neurocognitive testing in the management of sport-related concussion: an update.
Resch, Jacob E; McCrea, Michael A; Cullum, C Munro
2013-12-01
Since the late nineties, computerized neurocognitive testing has become a central component of sport-related concussion (SRC) management at all levels of sport. In 2005, a review of the available evidence on the psychometric properties of four computerized neuropsychological test batteries concluded that the tests did not possess the necessary criteria to warrant clinical application. Since the publication of that review, several more computerized neurocognitive tests have entered the market place. The purpose of this review is to summarize the body of published studies on psychometric properties and clinical utility of computerized neurocognitive tests available for use in the assessment of SRC. A review of the literature from 2005 to 2013 was conducted to gather evidence of test-retest reliability and clinical validity of these instruments. Reviewed articles included both prospective and retrospective studies of primarily sport-based adult and pediatric samples. Summaries are provided regarding the available evidence of reliability and validity for the most commonly used computerized neurocognitive tests in sports settings.
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The impact of sport related stressors on immunity and illness risk in team-sport athletes.
Keaney, Lauren C; Kilding, Andrew E; Merien, Fabrice; Dulson, Deborah K
2018-06-19
Elite team-sport athletes are frequently exposed to stressors that have the potential to depress immunity and increase infection risk. Therefore, the purpose of this review is to describe how team-sport stressors impact upon immune responses, along with exploring whether alterations in these markers have the potential to predict upper respiratory tract illness symptoms. Narrative review. Salivary secretory immunoglobulin A (SIgA) and T-cell markers have been shown to predict infection risk in individual endurance athletes. Papers discussing the impact of team-sport stressors on SIgA and T-cells were discussed in the review, studies discussing other aspects of immunity were excluded. Journal articles were sourced from PubMed, Web of science and Scopus. Key search terms included team-sport athletes, stressors, immunity, T-cells, cytokines, SIgA and upper respiratory illness. Most team-sport stressors appear to increase risk for illness. An association between reduced SIgA and increased illness incidence has been demonstrated. Intensive training and competition periods have been shown to reduce SIgA, however, it is less clear how additional stressors including extreme environmental conditions, travel, psychological stress, sleep disturbance and poor nutrition affect immune responses. Monitoring SIgA may provide an assessment of a team-sport athletes risk status for developing upper respiratory tract symptoms, however there is currently not enough evidence to suggest SIgA alone can predict illness. Team-sport stressors challenge immunity and it is possible that the combination of stressors could have a compounding effect on immunodepression and infection risk. Given that illness can disrupt training and performance, further research is required to better elucidate how stressors individually and collectively influence immunity and illness. Copyright © 2018 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.
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Relative age effects in Swiss talent development - a nationwide analysis of all sports.
Romann, Michael; Rössler, Roland; Javet, Marie; Faude, Oliver
2018-09-01
Relative age effects (RAE) generate consistent participation inequalities and selection biases in sports. The study aimed to investigate RAE across all sports of the national Swiss talent development programme (STDP). In this study, 18 859 youth athletes (female N = 5353; mean age: 14.8 ± 2.5 y and male N = 13 506; mean age: 14.4 ± 2.4 y) in 70 sports who participated in the 2014 competitive season were evaluated. The sample was subdivided by sex and the national level selection (NLS, N = 2464). Odds ratios (ORs) of relative age quarters (Q1-Q4) and 95% confidence intervals (CI) were calculated. In STDP, small RAE were evident for females (OR 1.35 (95%-CI 1.24, 1.47)) and males (OR 1.84 (95%-CI 1.74, 1.95)). RAE were similar in female NLS athletes (OR 1.30 (95%-CI 1.08, 1.57)) and larger in male NLS athletes (OR 2.40 (95%-CI 1.42, 1.97)) compared to athletes in the lower selection level. In STDP, RAE are evident for both sexes in several sports with popular sports showing higher RAE. RAE were larger in males than females. A higher selection level showed higher RAE only for males. In Switzerland, talent identification and development should be considered as a long-term process.
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Performance or appearance? Young female sport participants' body negotiations.
Lunde, Carolina; Gattario, Kristina Holmqvist
2017-06-01
The aim of this qualitative study was to examine young female sport participants' experiences and thoughts in terms of sport, their bodies, and social appearance norms. Six focus groups with female sport participants (N=25) from Sweden were conducted. Participants raised many positive experiences in relation to their sport participation, but they also witnessed a conflict in the intersection between the culture within their sport (emphasizing physical performance) and the culture outside their sport (emphasizing physical appearance). Through thematic analysis, four themes illustrating the balancing act between these two cultures were formed: (a) the performing body versus the objectified body, (b) food as fuel versus source of shame, (c) appreciation of body type diversity versus appearance prejudice, and (d) empowerment and agency versus disempowerment and restraints. The findings of this study indicate that young women who engage in sport have to face complex, ambiguous, and restricting norms and notions. Copyright © 2017 Elsevier Ltd. All rights reserved.
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Tomé-Lourido, David; Arce, Constantino; Vales-Vázquez, Ángel; Ponte, Dolores
2018-05-02
The evaluation of psychological skills by athletes and their relationship with sports performance and satisfaction has been of great interest in recent decades. Likewise, there has been an emergent tendency to focus on developing specific psychological skills for each sport. The principal aim of this study was to determine the frequency with which athletes deploy psychological skills whilst competing and whether their frequency varies in accordance with the technical, tactical and physical characteristics of the sport in question. A further objective was to establish the connection between the frequency of use of psychological skills and athletes' degree of satisfaction with their performance. The study comprised 1003 athletes practising 43 different sports, grouped into 7 categories based on the similarities between them. Frequency of use of the psychological skills was measured with the Test of Performance Strategies 3. The data analyses allowed the following conclusions to be drawn: the degree to which psychological skills are used is dependent on the technical, tactical and physical characteristics of each sport; and the higher the frequency of the use of psychological skills, the greater the athletes' degree of satisfaction with their performance. These results allow athletes and coaches to increase levels of sports performance by working on the use of psychological skills, adapted to the technical, tactical or physical requirements of the category in which their sport is included. In addition, working on different psychological skills will improve their satisfaction with sports performance.
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Omer Špirtović; Danilo Aćimović; Ahmet Međedović; Zoran Bogdanović
2010-01-01
Word „marketing“ comes from AngloSaxon linguistic domain and implies in a narrow sense the market. Under marketing, we consider certain process, which should create and solve relations of exchange between manufacturers on one side, and consumers on the other. Discussion about sport marketing implies its theoretical definition and generalization, and then its actual definition in sport environment. Sport marketing belongs to business function of sport organization and represents primaly an eco...
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Directory of Open Access Journals (Sweden)
Lorenza Antonia Reyes de Duran
2016-08-01
Full Text Available The proposal analysis, interpretation, disassembly, self-criticism and guidance is born and comes from work experience planned mass sports and social organizations opposed-not in the conventional sense comparative-private business models and sport, state and management. The contribution made by the sports management experience from positions of power, either state or business are undeniable and its impact is difficult to express in numbers for its humanistic value, which is incalculable. However, it is urgent to emphasize the products and results achieved by some social organizations related to sport; as are the reference cases in Higuerón and the municipality Independence of Yaracuy state. From a dialectical analysis of reality, we try to understand the complex system that involves high-level sports management and performance, we introduce in the praxical notions of sporting activity and associated approach applied to social and community work. As opening and closing action research processes, we will make a proposal to accompany sports management concerning overcrowding by and from social organizations. This proposal is constructed from an innovative, flexible, open, inclusive and social, community and organizational curriculum relevance.
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Sex differences in sport-related concussion long-term outcomes.
Covassin, Tracey; Savage, Jennifer L; Bretzin, Abigail C; Fox, Meghan E
2017-09-18
Approximately 1.6 to 3.8 million recreational and sports-related concussions (SRC) occur each year in the Unites States. Research suggest that female athletes are at a greater risk for a SRC compared to male athletes competing in comparable sports (i.e., soccer, basketball). Moreover, female athletes have reported more total symptoms and greater neurocognitive impairments following a SRC. Female athletes have been found to report greater symptom provocation as measured by the Vestibular/Ocular Motor Screening (VOMS), and increased brain activation compared to males. There is a scarcity of research on long-term effects of SRC in male and female athletes. Therefore, the aim of this review article is to summarize the existing literature on sex differences in acute and sub-acute SRC outcomes. Copyright © 2017. Published by Elsevier B.V.
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Taliaferro, Lindsay A.; Rienzo, Barbara A.; Miller, M. David; Pigg, R. Morgan; Dodd, Virginia J.
2010-01-01
Suicide ranks as the third leading cause of death for American youth. Researchers examining sport participation and suicidal behavior have regularly found inverse relationships. This study represents the first effort to test a model depicting potential mechanisms through which sport participation relates to reduced risk of suicidal ideation. The…
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Directory of Open Access Journals (Sweden)
Oleksandr Popov
2015-06-01
Full Text Available Purpose: exposure of conceptual and strategic positions of the complex marketing of sphere of physical culture and sport in the conditions of European integration of regional center. Material and Methods: analysis of literary sources, analysis of documents of legislative, normatively-legal and programmatic maintenance, analysis of the systems, questioning as a questionnaire. Results: the analysis of the systems of terms of development of sphere of physical culture and sport is carried out by the study of modern tendencies, interests of young people and habitants of regional center; complex description of conceptual and strategic positions of the relatively complex marketing of sphere of physical culture and sport is presented in the conditions of European integration of regional center. Conclusions: it is set that the decision of tasks in relation to conditioning for development of sphere of physical culture and sport must come true with the observance of certain principles; got founding in relation to development of marketing plan of forming of sporting image Kharkiv.
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Sports- and Work-Related Outcomes After Shoulder Hemiarthroplasty.
Garcia, Grant H; Mahony, Gregory T; Fabricant, Peter D; Wu, Hao-Hua; Dines, David M; Warren, Russell F; Craig, Edward V; Gulotta, Lawrence V
2016-02-01
With an active aging population, more patients expect to return to previous activities and work after surgery. To determine the rate and timing to return of sports and employment after shoulder hemiarthroplasty. Case series; Level of evidence, 4. This was a retrospective review of consecutive patients who underwent shoulder hemiarthroplasty from 2007 to 2013. Follow-up consisted of a patient-reported questionnaire regarding physical fitness, sporting activities, and work status. From 105 patients screened, 79 were available for follow-up. The average follow-up time was 63.1 months, and the average age at follow-up was 69 years. Scores on the visual analog scale for pain improved from 6.2 to 2.1 (P sports preoperatively, and 67.2% of these restarted at least 1 of their previous sports postoperatively. The average time to return to full sports was 6.5 months for those who returned. Direct rates of return were as follows: fitness sports (69%), swimming (65%), running (64%), cycling (63%), and doubles tennis (57%). Younger age was associated with highest demand level achieved (P = .023). Forty-nine patients worked preoperatively, with 69.4% returning to previous employment after surgery; the average time to return to work was 1.4 months. In comparative analysis, patients who did not return to work had a higher mean body mass index (32 ± 7 vs 27 ± 5 kg/m(2); P sports at an average of 6.5 months postoperatively. Patients older than 65 years experienced similar improvements in ASES scores compared with patients younger than 65 years, although absolute scores were lower on average. Those who returned to higher demand sports were younger on average. Of patients working preoperatively, 69.4% returned to their previous employment at an average of 1.4 months. Patients who did not return to employment had significantly higher body mass index on average. These findings will help surgeons manage expectations of shoulder hemiarthroplasty candidates preoperatively. © 2015 The
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Attentional Mechanisms in Sports via Brain-Electrical Event-Related Potentials
Hack, Johannes; Memmert, Daniel; Rup, Andre
2009-01-01
In this study, we examined attention processes in complex, sport-specific decision-making tasks without interdependencies from anticipation. Psychophysiological and performance data recorded from advanced and intermediate level basketball referees were compared. Event-related potentials obtained while judging game situations in foul recognition…
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Sports, Global Politics, and Social Value Change: A Research Agenda
Directory of Open Access Journals (Sweden)
Lars Rensmann
2015-11-01
Full Text Available Despite their important role in forging, constructing and self-ascribing social identities and shaping popular culture, sports have long been a marginalized subject of social science inquiry, cultural studies, and research on international politics. Only in recent years this has begun to change. The article seeks to advance the still nascent but emerging cross-disciplinary field of research on sports and global politics in two ways: first, by addressing largely unexplored issues of sports, politics, and social conflicts, putting the spotlight on sociopolitical arenas beyond commercialized sports mega events, which have attracted most scholarly attention in contemporary research; and second, by generating hypotheses on the indirect political effects of sports cultures, in particular on the relationship between local social identities—reinforced through sports—and cosmopolitan value change. These interlinked spatial and substantive claims ground a new critical research framework and agenda: it examines sports as profoundly embedded in socioeconomic, cultural and political forms of rule and domination but also seeks to disclose sports’ emancipatory and subversive potential in advancing globalization from below.
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Examining elite Parasport athletes with sport involvement and sports equipment.
Hambrick, Marion E; Hums, Mary A; Bower, Glenna G; Wolff, Eli A
2015-01-01
Elite athletes require the most advanced sports equipment to maintain their competitive edge, but manufacturers cannot always satisfy these athletes' specific equipment needs. Sport involvement can influence sports-equipment selections and is described as the process by which individuals rely on attitudes and belief systems to make sports-related consumption decisions. This study involved semistructured interviews with 5 elite Parasport athletes to identify and analyze the role of sport involvement in their selection of sports equipment. The results revealed that the athletes identified product limitations, created a collaborative environment, and promoted a culture of innovation to develop new sports products and address existing limitations. Theoretical and practical implications are discussed.
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Oxytocin and the Biopsychology of Performance in Team Sports
Pepping, Gert-Jan; Timmermans, Erik J.
2012-01-01
Little is known about the biopsychological underpinnings of expert performance in team sports. In this paper we show that there is a vast support for oxytocin as a neuropeptide involved in the encouragement of important processes linked to greater team performance in sport. We argue that oxytocin is related to biopsychological processes aimed at convergence of emotions and moods between people, and in doing so it is a critical neuropeptide involved in the shaping of important team processes in sport such as trust, generosity, altruism, cohesion, cooperation, and social motivation, and also envy and gloating. Future research should examine the role of oxytocin in these essential components of sport performance. In particular, the link between oxytocin, emotional contagion and the cultivation of experiences of positive emotions is a worthwhile line of investigation for sport participation and development as well as high performance in sport. PMID:22997498
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Oxytocin and the biopsychology of performance in team sports.
Pepping, Gert-Jan; Timmermans, Erik J
2012-01-01
Little is known about the biopsychological underpinnings of expert performance in team sports. In this paper we show that there is a vast support for oxytocin as a neuropeptide involved in the encouragement of important processes linked to greater team performance in sport. We argue that oxytocin is related to biopsychological processes aimed at convergence of emotions and moods between people, and in doing so it is a critical neuropeptide involved in the shaping of important team processes in sport such as trust, generosity, altruism, cohesion, cooperation, and social motivation, and also envy and gloating. Future research should examine the role of oxytocin in these essential components of sport performance. In particular, the link between oxytocin, emotional contagion and the cultivation of experiences of positive emotions is a worthwhile line of investigation for sport participation and development as well as high performance in sport.
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Oxytocin and the Biopsychology of Performance in Team Sports
Directory of Open Access Journals (Sweden)
Gert-Jan Pepping
2012-01-01
Full Text Available Little is known about the biopsychological underpinnings of expert performance in team sports. In this paper we show that there is a vast support for oxytocin as a neuropeptide involved in the encouragement of important processes linked to greater team performance in sport. We argue that oxytocin is related to biopsychological processes aimed at convergence of emotions and moods between people, and in doing so it is a critical neuropeptide involved in the shaping of important team processes in sport such as trust, generosity, altruism, cohesion, cooperation, and social motivation, and also envy and gloating. Future research should examine the role of oxytocin in these essential components of sport performance. In particular, the link between oxytocin, emotional contagion and the cultivation of experiences of positive emotions is a worthwhile line of investigation for sport participation and development as well as high performance in sport.
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Exploring the Sports Experiences of Socially Vulnerable Youth
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Sabina Super
2017-06-01
Full Text Available Sports participation is considered beneficial for the development of socially vulnerable youth, not only in terms of physical health but also in terms of cognitive, social and emotional health. Despite the strong belief that sports clubs offer a setting for positive youth development, there is limited knowledge about how socially vulnerable youths experience their participation in these clubs. Interviews were conducted with 22 socially vulnerable youths that play a sport at a local sports club. An inductive content analysis was conducted and three themes were discovered that are included in the positive and negative sports experiences: the extent to which the youths experienced visibility of their skills, the extent to which the youths felt confident while playing their sport, and the extent to which the youths felt that sport was a challenge they liked to take on. More importantly, there was a fragile balance within each of the themes and the sports coaches played an important role in installing and maintaining a supportive environment in which the youths could have meaningful, consistent and balanced sports experiences. It is not self-evident that for socially vulnerable youth sports experiences are positive and supporting.
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Sports betting: can gamblers beat randomness?
Cantinotti, Michael; Ladouceur, Robert; Jacques, Christian
2004-06-01
Although skills are not considered relevant in chance-governed activities, only a few studies have assessed the extent to which sport expert skills in wagering are a manifestation of the illusion of control. This study examined (a) whether expert hockey bettors could make better predictions than chance, (b) whether expert hockey bettors could achieve greater monetary gains than chance, and (c) what kind of strategies hockey gamblers rely on when betting. Accordingly, 30 participants were asked to report their state lottery hockey bets on 6 occasions. We suggest that the information used by bettors, along with near-misses, reinforces their perception of expertise. The results of this experiment suggest that the so-called "skills" of the sports bettors are cognitive distortions. (c) 2004 APA, all rights reserved
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Interventions implemented through sporting organisations for increasing participation in sport.
Priest, Naomi; Armstrong, Rebecca; Doyle, Jodie; Waters, Elizabeth
2008-07-16
There is now compelling scientific evidence that increased levels of physical activity can bring wide-ranging health benefits. These benefits can extend beyond physical health to include other positive impacts relating to mental health and personal development. The sport and recreation sector is viewed as a priority area for increasing rates of physical activity. Participation rates in organised sport have been shown to be lower in females and to decline with age, and are reduced in lower socio-economic and minority groups including people from non-English speaking and Indigenous backgrounds. It is important to determine the most effective interventions that sporting organisations can use to increase people's participation. To update a review of all controlled studies evaluating interventions implemented through sporting organisations to increase participation. We updated the original (2004) searches in May 2007. We searched: The Cochrane Central Register of Controlled Trials (CENTRAL, The Cochrane Library, Issue 2 2007); MEDLINE and MEDLINE In-Process and Other Non-Indexed Citations (2004 to Week 3 April 2007); EMBASE (2004 to Week 17 2007); PsyclNFO (2004 to April Week 1 2007); CINAHL (2004 to Week 1 May 2007); SPORTDiscus (2004 to April 2007); Sociological Abstracts (2004 to 2007); Dissertation Abstracts (2004 to May 2007), and a number of freely-available online health promotion and sports-related databases. We used the internet extensively to search for studies and locate information generated by sporting bodies throughout the world. Controlled studies evaluating any intervention designed to increase active and/ or non-active participation in sport by people of all ages. Interventions could include: mass media campaigns; information or education sessions; management or organisational change strategies; policy changes, for example to improve the socio-cultural environment to encourage people of specific age, gender or ethnicity to participate; changes to
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Paddack, Michael; DeWolf, Ryan; Covassin, Tracey; Kontos, Anthony
2016-01-01
College sport organizations and associations endorse concussion-management protocols and policies. To date, little information is available on concussion policies and practices at community college institutions. To assess and describe current practices and policies regarding the assessment, management, and return-to-play criteria for sport-related concussion (SRC) among member institutions of the California Community College Athletic Association (CCCAA). Cross-sectional study. Web-based survey. A total of 55 head athletic trainers (ATs) at CCCAA institutions. Data about policies, procedures, and practices regarding SRC were collected over a 3-week period in March 2012 and analyzed using descriptive statistics, the Fisher exact test, and the Spearman test. Almost half (47%) of ATs stated they had a policy for SRC assessment, management, and return to play at their institution. They reported being in compliance with baseline testing guidelines (25%), management guidelines (34.5%), and return-to-play guidelines (30%). Nearly 31% of ATs described having an SRC policy in place for academic accommodations. Conference attendance was positively correlated with institutional use of academic accommodations after SRC (r = 0.44, P = .01). The number of meetings ATs attended and their use of baseline testing were also positively correlated (r = 0.38, P = .01). At the time of this study, nearly half of CCCAA institutions had concussion policies and 31% had academic-accommodation policies. However, only 18% of ATs at CCCAA institutions were in compliance with all of their concussion policies. Our findings demonstrate improvements in the management of SRCs by ATs at California community colleges compared with previous research but a need for better compliance with SRC policies.
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Differential diagnostics of the musculoskeletal system in sports medicine
International Nuclear Information System (INIS)
Nehrer, S.
2010-01-01
The positive effects of sports on the cardiovascular and musculoskeleal systems are widely accepted. Nevertheless, sports also can cause injury and overuse leading to sport-specific problems, which are often a challenge in diagnosing and treatment. The history of the sport-related injury is crucial for further differential diagnosis. Careful inspection, palpation and functional testing can reveal the possible pathology and lead to an effective strategy in the diagnostic assessment using radiographic tools such as sonography, X-ray and MR imaging (MRI). In muscle and tendon injuries sonography can provide ready to use information concerning muscle tears and tendon ruptures or degenerative lesions. Plain X-rays give a good overview on joint conditions regarding the bone and sometimes have to be completed by focused enlargement of the critical structure, especially in stress fractures and small bone lesions. MRT is the gold standard in the evaluation of interarticular and extra-articular sport-related pathologies, however, an exact clinical diagnosis allows a more effective investigation protocol. Profound knowledge of possible sport-specific injury and overuse patterns is necessary to detect lesions of the musculoskeletal system in active athletes and to use the fitting radiographic strategy for confirmation. The exact diagnosis is the prerequisite for initiating the appropriate treatment and a fast sports medical rehabilitation process. (orig.) [de
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Low back pain status of female university students in relation to different sport activities.
Noormohammadpour, Pardis; Rostami, Mohsen; Mansournia, Mohammad Ali; Farahbakhsh, Farzin; Pourgharib Shahi, Mohammad Hosein; Kordi, Ramin
2016-04-01
To investigate the prevalence of low back pain (LBP) and its absence rate among female university student athletes in different types of sports. A cross-sectional study based on a standard self-reporting questionnaire was performed among 1335 athletes. Participants were female athletes who attended the National Sports Olympiad of Female University Students in basketball, volleyball, futsal, tennis, badminton, swimming, track and field, shooting, and karate. One thousand and fifty-nine athletes with the mean (SD) age of 23.1 (3.8) years responded to the questionnaire (response rate 79%). The 12-month prevalence of LBP was 39.0%; in addition, lifetime and point prevalence of LBP were 59.7 and 17.8%, respectively. Basketball (47.9 %) and karate (44.0 %) players had reported the highest 12-month prevalence of LBP. Also, LBP prevalences in shooting (29.7 %) and badminton (42.4 %) players were not negligible. Results show that, LBP led to relatively high absence rate from training sessions (27.9%) and matches (13.0%). While most of the existing literatures regarding female athletes' LBP have focused on particular sports with specific low back demands (such as skiing and rowing), many other sports have not been studied very well in this regard. Investigating LBP prevalence and related factors in other types of sports, such as combat sports, badminton and shooting, can help us better understand the prevalence of low back pain and provide us with necessary insight to take effective steps towards its prevention in athletes.
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Sports Injury-Related Fingers and Thumb Deformity Due to Tendon or Ligament Rupture.
Bai, Rong-Jie; Zhang, Hui-Bo; Zhan, Hui-Li; Qian, Zhan-Hua; Wang, Nai-Li; Liu, Yue; Li, Wen-Ting; Yin, Yu-Ming
2018-05-05
Hand injuries are very common in sports, such as skiing and ball sports. One of the major reasons causing hand and finger deformity is due to ligament and tendon injury. The aim of this study was to investigate if the high-resolution 3T magnetic resonance imaging (MRI) can demonstrate the complex anatomy of the fingers and thumb, especially the tendons and ligaments, and provide the accurate diagnosis of clinically important fingers and thumbs deformity due to ligamentous and tendinous injuries during sport activities. Sixteen fresh un-embalmed cadaveric hands were harvested from eight cadavers. A total of 20 healthy volunteers' hands and 44 patients with fingers or thumb deformity due to sports-related injuries were included in this study. All subjects had MR examination with T1-weighted images and proton density-weighted imaging with fat suppression (PD FS) in axial, coronal, and sagittal plane, respectively. Subsequently, all 16 cadaveric hands were sliced into 2-mm thick slab with a band saw (six in coronal plane, six in sagittal plane, and four in axial plane). The correlation of anatomic sections and the MRI characteristics of tendons of fingers and the ulnar collateral ligament (UCL) at the metacarpal phalangeal joint (MCPJ) of thumb between 20 healthy volunteers and 44 patients (confirmed by surgery) were analyzed. The normal ligaments and tendons in 16 cadaveric hands and 20 volunteers' hands showed uniform low-signal intensity on all the sequences of the MRI. Among 44 patients with tendinous and ligamentous injuries in the fingers or thumb, 12 cases with UCL injury at MCPJ of the thumb (Stener lesion = 8 and non-Stener lesion = 4), 6 cases with the central slip injury, 12 cases with terminal tendon injury, and 14 cases with flexor digitorum profundus injury. The ligaments and tendons disruption manifested as increased signal intensity and poor definition, discontinuity, and heterogeneous signal intensity of the involved ligaments and tendons. Sports
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Sport club participation of adolescents with asthma: maternal factors and adolescent cognitions.
Tiggelman, Dana; van de Ven, Monique O M; van Schayck, Onno C P; Kleinjan, Marloes; Engels, Rutger C M E
2014-09-01
Sport participation is especially important for patients with asthma in that it decreases psychosocial and physiological problems associated with inactivity. However, adolescents with asthma seem to participate less in sports compared to their non-asthmatic peers. The current study tested the direct associations between maternal sport-specific factors and sport club participation of early adolescents with asthma and the indirect effect through adolescent's sport-specific cognitions. During home visits, 261 adolescents (aged 10-15) completed questionnaires about self-efficacy, beliefs regarding sport participation, and their actual sport club participation. Their mothers reported their sport-specific support, beliefs about offspring's and own sport participation, their own levels of physical activity, and their self-efficacy to stimulate offspring to participate in sports. Path analyses were used to examine the direct and indirect associations of maternal sport-specific factors with adolescents sport club participation via adolescent sport-specific cognitions. Analyses showed that maternal sport-specific support (β = 0.20, P = 0.007) and self-efficacy to stimulate offspring to participate in sports (β = 0.20, P = 0.027) related positively to adolescents' sport club participation. Adolescents' self-efficacy (indirect effect = 0.09, SE = 3.01, P adolescents' participation in sport clubs. Maternal sport-specific factors related to adolescents' sport club participation directly and indirectly through adolescents' sport-specific cognitions. Intervention programs should focus on maternal sport-specific support and self-efficacy and adolescents' self-efficacy to increase sport participation of adolescents with asthma. © 2013 Wiley Periodicals, Inc.
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Flexural reinforced concrete member with FRP reinforcement
Putzolu, Mariana
2017-01-01
One of the most problematic point in construction is the durability of the concrete especially related to corrosion of the steel reinforcement. Due to this problem the construction sector, introduced the use of Fiber Reinforced Polymer, the main fibers used in construction are Glass, Carbon and Aramid. In this study, the author aim to analyse the flexural behaviour of concrete beams reinforced with FRP. This aim is achieved by the analysis of specimens reinforced with GFRP bars, with theoreti...
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Directory of Open Access Journals (Sweden)
N.V. Tikhonova
2014-10-01
Full Text Available Purpose : the study of the development of sport and technical and applied sports in the sports organizations of Ukraine. Material : the results of analysis of scientific and methodical literature, statistical reports of the Ministry of Youth and Sports, controls for Physical Culture and Sport, the governing bodies of education and science, society websites promoting Defence of Ukraine, the Sports Committee of Ukraine. Results : technical sports solve complex health and educational problems, promote patriotic education of children. In Ukraine today gaining popularity of sports-technical and applied sports. According to statistics the number of students enrolled in 2013 increased by 6% (1720 people in relation to 2012. Total 30484 person. The most popular among children and adolescents are: military-sport all-around (amount involved is 23.9% of the total number of pupils, fire-applied sports (8.8%, parachute (8.7%, automotive (8.1 %, model aircraft (7.8%, underwater (5.8%, radio sport (7.1%. The most abundant component in the number of sports clubs have engaged in occupations which covered 18264 children and adolescents. Conclusions : Implementation of measures for further development of sports engineering, aviation and military applied sports will foster a versatile development, hardened physically, technically trained people. As the formation of the younger generation of sustained interest and needs in the classroom technical creativity, provide training for young people for military service and active labor.
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Sports Medicine: What is a Sports Medicine Specialist?
... assessment and management • Care of sports-related and general medical needs of athletes • Special populations (geriatric, disabled, women, youth, etc.) • Sports psychology issues • Substance use issues • Education and counseling on ...
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Medic, Nikola; Young, Bradley W; Starkes, Janet L; Weir, Patricia L; Grove, J Robert
2009-12-01
A relative age effect has been identified in Masters sports (Medic, Starkes, & Young, 2007). Since gender, age, and type of sport have been found to influence the relative age effect in youth sports (Musch & Grondin, 2001), we examined how these three variables influenced possible relative age effects among Masters swimmers and track and field athletes. Using archived data between 1996 and 2006, frequency of participation entries and record-setting performances at the US Masters championships were examined as a function of an individual's constituent year within any 5-year age category. Study 1 investigated the frequency of Master athletes who participated; Study 2 examined the frequency of performance records that were set across constituent years within an age category, while accounting for the distribution of participation frequencies. Results showed that a participation-related relative age effect in Masters sports is stronger for males, that it becomes progressively stronger with each successive decade of life, and that it does not differ across track and field and swimming. In addition, a performance-related relative age effect in Masters sport seems to be stronger for swimming than track and field, but it does not differ across gender and decades of life.
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Imaging of Muscle Injuries in Sports Medicine: Sports Imaging Series.
Guermazi, Ali; Roemer, Frank W; Robinson, Philip; Tol, Johannes L; Regatte, Ravindar R; Crema, Michel D
2017-03-01
In sports-related muscle injuries, the main goal of the sports medicine physician is to return the athlete to competition-balanced against the need to prevent the injury from worsening or recurring. Prognosis based on the available clinical and imaging information is crucial. Imaging is crucial to confirm and assess the extent of sports-related muscle injuries and may help to guide management, which directly affects the prognosis. This is especially important when the diagnosis or grade of injury is unclear, when recovery is taking longer than expected, and when interventional or surgical management may be necessary. Several imaging techniques are widely available, with ultrasonography and magnetic resonance imaging currently the most frequently applied in sports medicine. This state of the art review will discuss the main imaging modalities for the assessment of sports-related muscle injuries, including advanced imaging techniques, with the focus on the clinical relevance of imaging features of muscle injuries. © RSNA, 2017 Online supplemental material is available for this article.
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Socialization via Sport - Process of Re - socialization
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Yılmaz KAPLAN
2014-08-01
Full Text Available Socialization is a process that a part of a specific culture and a specific member of society. The aim of this study is to discuss how sport effects to socialization of children and young, and re - socialization of adults.The study is a descriptive, theoretical and conceptive study. Acc ording to some studies that sport is an obtained gain in socialization process. Sport, especially team sports learned to children and young that how to behave in social group and how to control their behaviors. According a study, young people who after the start of sportive activities, its seen that “they evaluate their leisure time more beneficially” (98.6%, “they understand the importance of team working” (95.8%, “they are aware of their responsibility” (97.2% and “they gain planning study habit” (94,4 %. In addition to sport effected socialization that “understanding the importance of division of labor and solidarity” (93%, “be aware and be more careful of social rules” (92.3%, and “be tolerant of others idea and beliefs” (88.7% (Bulgu&Akcan, 2003;1 57 - 159. If the sportive activities be on children and young life, it’s an important and effective communication tools. Sport, improves social relationship and decrease social distance. Sport requires feel empathy with someone and improves the empathy hab it. Sport contributes the children and young for self - expression to be truer and better. Sport is an effective tool for to be important and meaningful part of group. Sport contributes the children and young for become integrated with a group. Also sport pl aying important role for reinforcement to solidarity and to gain the habit of obey the rules. Sport makes a major contribute socialization and re - socialization of children and young. Accordingly these results, sport has to play active role in social life a nd instructional program.
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Directory of Open Access Journals (Sweden)
Hebe Schaillée
2017-06-01
Full Text Available The relationship between coach- and peer-created motivational climates and Positive Youth Development is largely unexplored. This is especially true for the latter and in particular with regard to disadvantaged girls. The present study was designed to examine the relationships between perceived coach- and peer-created climates and reported developmental gains among disadvantaged girls participating in sports programmes, and to determine whether these relationships were moderated by personal characteristics. Two hundred young women aged between 12 and 22 completed a questionnaire which included the ‘Youth Experience Survey for Sport’ (MacDonald, Côté, Eys, & Deakin, 2012, the ‘Motivational Climate Scale for Youth Sports’ (Smith, Cumming, & Smoll, 2008, the ‘Peer Motivational Climate in Youth Sport Questionnaire’ (Ntoumanis & Vazou, 2005, and questions regarding participants’ socio-economic characteristics. Multilevel regression analyses were performed to take into account the hierarchical data structure. The analysis revealed that a mastery-oriented coach climate is a very strong predictor of perceived Positive Youth Development. This is based on both the number of developmental domains on which it had a significant impact and the explained variance based on the PRV values of the multi-level models. Unlike previous research on disadvantaged youth in general and disadvantaged girls in particular, the observed interaction effects did not show that disadvantaged girls necessarily gain more from their involvement in organised activities such as sport.
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Wogar, M A; Bradshaw, C M; Szabadi, E
1991-01-01
The possible involvement of the ascending 5-hydroxytryptaminergic (5HTergic) pathways in the maintenance of operant behaviour by positive reinforcement was examined using a quantitative paradigm based on Herrnstein's (1970) equation which defines a hyperbolic relationship between steady-state response rate and reinforcement frequency in variable-interval schedules. Nine rats received injections of 5,7-dihydroxytryptamine into the dorsal and median raphe nuclei; 12 rats received sham injections. The rats were trained to steady-state in a series of variable-interval schedules of sucrose reinforcement affording a range of reinforcement frequencies. Herrnstein's equation was fitted to the data obtained from each rat and to the averaged data obtained from the two groups. The value of KH (the parameter expressing the reinforcement frequency needed to obtain the half-maximum response rate) was significantly lower in the lesioned group than in the control group; the values of Rmax (the parameter expressing the maximum response rate) did not differ significantly between the two groups. The levels of 5HT and 5-hydroxyindoleacetic acid in the parietal cortex, hippocampus, nucleus accumbens and hypothalamus were markedly reduced in all four regions in the lesioned group, but the levels of noradrenaline and dopamine were not significantly affected. The results indicate that damage to the central 5HTergic pathways resulted in an increase in the "value" of the sucrose reinforcer, without affecting the animals' response capacity. The results are consistent with the suggestion that the 5HTergic pathways may exert some limiting control on the "values" of certain reinforcers.
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Top 10 Research Questions Related to Preventing Sudden Death in Sport and Physical Activity.
Katch, Rachel K; Scarneo, Samantha E; Adams, William M; Armstrong, Lawrence E; Belval, Luke N; Stamm, Julie M; Casa, Douglas J
2017-09-01
Participation in organized sport and recreational activities presents an innate risk for serious morbidity and mortality. Although death during sport or physical activity has many causes, advancements in sports medicine and evidence-based standards of care have allowed clinicians to prevent, recognize, and treat potentially fatal injuries more effectively. With the continual progress of research and technology, current standards of care are evolving to enhance patient outcomes. In this article, we provided 10 key questions related to the leading causes and treatment of sudden death in sport and physical activity, where future research will support safer participation for athletes and recreational enthusiasts. The current evidence indicates that most deaths can be avoided when proper strategies are in place to prevent occurrence or provide optimal care.
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Assessment and Management of Sport-Related Concussions in United States High Schools
Meehan, William P.; d’Hemecourt, Pierre; Collins, Christy L.; Comstock, R. Dawn
2012-01-01
Background Little existing data describe which medical professionals and which medical studies are used to assess sport-related concussions in high school athletes. Purpose To describe the medical providers and medical studies used when assessing sport-related concussions. To determine the effects of medical provider type on timing of return to play, frequency of imaging, and frequency of neuropsychological testing. Study Design Descriptive epidemiology study. Methods All concussions recorded by the High School Reporting Information Online (HS RIO) injury surveillance system during the 2009 to 2010 academic year were included. χ2 analyses were conducted for categorical variables. Fisher exact test was used for nonparametric data. Logistic regression analyses were used when adjusting for potential confounders. Statistical significance was considered for P concussions, representing 14.6% of all injuries. Most (94.4%) concussions were assessed by athletic trainers (ATs), 58.8% by a primary care physician. Few concussions were managed by specialists. The assessment of 21.2% included computed tomography. Computerized neuropsychological testing was used for 41.2%. For 50.1%, a physician decided when to return the athlete to play; for 46.2%, the decision was made by an AT. After adjusting for potential confounders, no associations between timing of return to play and the type of provider (physician vs AT) deciding to return the athlete to play were found. Conclusion Concussions account for nearly 15% of all sport-related injuries in high school athletes. The timing of return to play after a sport-related concussion is similar regardless of whether the decision to return the athlete to play is made by a physician or an AT. When a medical doctor is involved, most concussions are assessed by primary care physicians as opposed to subspecialists. Computed tomography is obtained during the assessment of 1 of every 5 concussions occurring in high school athletes. PMID:21969181
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Speaking the Unspoken: Racism, Sport and Maori
Directory of Open Access Journals (Sweden)
Holly Raima Hippolite
2010-08-01
Full Text Available In this paper, we argue that the intersection of two key ideologies – New Zealand’s purported history of good race relations, and the positive contribution sport is believed to make to racial equality – has created an environment in which it is difficult to talk about, let alone discuss constructively, Māori experiences of racism in the sport context. Our aim is to put the issue on the agenda by engaging with 10 experienced Māori sport participants, coaches and administrators whose experiences demonstrate the existence of, and pain caused by, cultural and institutional racism in New Zealand sport. In this aim, we do not seek to hide behind a veil of neutrality or objectivity. Rather, following a kaupapa Māori research approach, our interest is in bringing to light the voices, frustrations and concerns of Māori in order to contribute to a much-needed conversation.
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Influence of Caring Youth Sport Contexts on Efficacy-Related Beliefs and Social Behaviors
Gano-Overway, Lori A.; Newton, Maria; Magyar, T. Michelle; Fry, Mary D.; Kim, Mi-Sook; Guivernau, Marta R.
2009-01-01
Understanding what factors influence positive youth development has been advocated by youth development researchers (P. L. Benson, 2006; J. S. Eccles & J. A. Gootman, 2002). Consequently, the purpose of this study was to examine whether perceptions of a caring youth sport context influenced prosocial and antisocial behavior through…
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Workewych, Adriana M; Ciuffetelli Muzzi, Madeline; Jing, Rowan; Zhang, Stanley; Topolovec-Vranic, Jane; Cusimano, Michael D
2017-01-01
Sport-related traumatic brain injuries are a significant public health burden, with hundreds of thousands sustained annually in North America. While sports offer numerous physical and social health benefits, traumatic brain injuries such as concussion can seriously impact a player's life, athletic career, and sport enjoyment. The culture in many sports encourages winning at all costs, placing athletes at risk for traumatic brain injuries. As social media has become a central part of everyday life, the content of users' messages often reflects the prevailing culture related to a particular event or health issue. We hypothesized that Twitter data might be useful for understanding public perceptions and misperceptions of sport-related traumatic brain injuries. We performed a content and sentiment analysis of 7483 Twitter ® tweets related to traumatic brain injuries in sports collected during June and July 2013. We identified five major themes. Users tweeted about personal traumatic brain injuries experiences, reported traumatic brain injuries in professional athletes, shared research about sport-related concussions, and discussed policy and safety in injury prevention, such as helmet use. We identified mixed perceptions of and sentiment toward traumatic brain injuries in sports: both an understanding that brain injuries are serious and disregard for activities that might reduce the public burden of traumatic brain injuries were prevalent in our Twitter analysis. While the scientific and medical community considers a concussion a form of traumatic brain injuries, our study demonstrates a misunderstanding of this fact among the public. In our current digital age, social media can provide useful insight into the culture around a health issue, facilitating implementation of prevention and treatment strategies.
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Tripp, Gail; Wickens, Jeff R.
2008-01-01
This review considers the hypothesis that changes in dopamine signalling might account for altered sensitivity to positive reinforcement in children with ADHD. The existing evidence regarding dopamine cell activity in relation to positive reinforcement is reviewed. We focus on the anticipatory firing of dopamine cells brought about by a transfer…
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Chen, YuChun; Curtner-Smith, Matthew D.
2015-01-01
Previous research had indicated that pre-service teachers (PTs) with coaching orientations reinforced sexism and masculine bias while employing the sport education (SE) model. The purpose of the current study was to examine whether or not and the degree to which SE delivered by PTs with teaching orientations served to combat or reinforce sexism…
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Agans, Jennifer P.; Geldhof, G. John
2012-01-01
In order to examine youth experiences in athletic activities with different characteristics, the present study explored the developmental outcomes associated with participation in three different types of sport (individual sports, team sports, and dance-type sports) as well as across six identified patterns of participation (no participation,…
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Reinforcement Schedules in a Verbal Reinforcement Combination and Renection-Impulsivity
TAMASE, Koji; UEDA, Masako
1986-01-01
It was predicted that higher proportion of the negative reinforcement "Wrong" than that of the positive reinforcement "Right" in a reinforcement combination will produce higher proportion of the correct response and this trend will be greater in reflective children than in impulsive children. From 140 kindergarten children 30 reflective and 30 impulsive children were selected and they were given a two-hole marble-dropping task. The best performance in the ratio of correct responses was obtain...
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Are Canadian clinicians providing consistent sport-related concussion management advice?
Carson, James D; Rendely, Alexandra; Garel, Alisha; Meaney, Christopher; Stoller, Jacqueline; Kaicker, Jatin; Hayden, Leigh; Moineddin, Rahim; Frémont, Pierre
2016-06-01
To compare the knowledge and use of recommendations for the management of sport-related concussion (SRC) among sport and exercise medicine physicians (SEMPs) and emergency department physicians (EDPs) to assess the success of SRC knowledge transfer across Canada. A self-administered, multiple-choice survey accessed via e-mail by SEMPs and EDPs. The survey had been assessed for content validity. Canada. The survey was completed between May and July 2012 by SEMPs who had passed the diploma examination of the Canadian Academy of Sport and Exercise Medicine and by EDPs who did not hold this diploma. Knowledge and identification of sources of concussion management information, use of concussion diagnosis strategies, and whether physicians use common and consistent terminology when explaining cognitive rest strategies to patients after an SRC. There was a response rate of 28% (305 of 1085). The SEMP and EDP response rates were 41% (147 of 360) and 22% (158 of 725), respectively. Of the responses, 41% of EDPs and 3% of SEMPs were unaware of any consensus statements on concussion in sport; 74% of SEMPs used the Sport Concussion Assessment Tool, version 2 (SCAT2), "usually or always," whereas 88% of EDPs never used the SCAT2. When queried about how cognitive rest could best be achieved after an SRC, no consistent answer was documented. Differences and a lack of consistency in the implementation of recommendations for SRC patients were identified for SEMPs and EDPs. It appears that the SCAT2 is used more in the SEMP setting than in the emergency context. Further knowledge transfer efforts and research should address the barriers to achieving more consistent advice given by physicians who attend SRC patients. Copyright© the College of Family Physicians of Canada.
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Myer, Gregory D.; Jayanthi, Neeru; Difiori, John P.; Faigenbaum, Avery D.; Kiefer, Adam W.; Logerstedt, David; Micheli, Lyle J.
2015-01-01
Context: There is increased growth in sports participation across the globe. Sports specialization patterns, which include year-round training, participation on multiple teams of the same sport, and focused participation in a single sport at a young age, are at high levels. The need for this type of early specialized training in young athletes is currently under debate. Evidence Acquisition: Nonsystematic review. Study Design: Clinical review. Level of Evidence: Level 4. Conclusion: Sports specialization is defined as year-round training (greater than 8 months per year), choosing a single main sport, and/or quitting all other sports to focus on 1 sport. Specialized training in young athletes has risks of injury and burnout, while the degree of specialization is positively correlated with increased serious overuse injury risk. Risk factors for injury in young athletes who specialize in a single sport include year-round single-sport training, participation in more competition, decreased age-appropriate play, and involvement in individual sports that require the early development of technical skills. Adults involved in instruction of youth sports may also put young athletes at risk for injury by encouraging increased intensity in organized practices and competition rather than self-directed unstructured free play. Strength-of-Recommendation Taxonomy (SORT): C. PMID:26502420
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Fullagar, Hugh H K; Duffield, Rob; Skorski, Sabrina; Coutts, Aaron J; Julian, Ross; Meyer, Tim
2015-11-01
While the effects of sleep loss on performance have previously been reviewed, the effects of disturbed sleep on recovery after exercise are less reported. Specifically, the interaction between sleep and physiological and psychological recovery in team-sport athletes is not well understood. Accordingly, the aim of the current review was to examine the current evidence on the potential role sleep may play in postexercise recovery, with a tailored focus on professional team-sport athletes. Recent studies show that team-sport athletes are at high risk of poor sleep during and after competition. Although limited published data are available, these athletes also appear particularly susceptible to reductions in both sleep quality and sleep duration after night competition and periods of heavy training. However, studies examining the relationship between sleep and recovery in such situations are lacking. Indeed, further observational sleep studies in team-sport athletes are required to confirm these concerns. Naps, sleep extension, and sleep-hygiene practices appear advantageous to performance; however, future proof-of-concept studies are now required to determine the efficacy of these interventions on postexercise recovery. Moreover, more research is required to understand how sleep interacts with numerous recovery responses in team-sport environments. This is pertinent given the regularity with which these teams encounter challenging scenarios during the course of a season. Therefore, this review examines the factors that compromise sleep during a season and after competition and discusses strategies that may help improve sleep in team-sport athletes.
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Sport Management Interns--Selection Qualifications.
Cuneen, Jacquelyn; Sidwell, M. Joy
1993-01-01
Examines and rates the background qualifications and qualities, identified by sport management practitioners through an examination of paper credentials, that are desired in interviewees vying for selection into sport management internship positions. (GLR)
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Sporting Chance: Indigenous Participation in Australian Sport History
Directory of Open Access Journals (Sweden)
Sean Gorman
2010-08-01
Full Text Available For many non-Indigenous Australians the only time they have any engagement with Indigenous peoples, history or issues is through watching sport on television or being at a football match at the MCG. This general myopia and indifference by settler Australians with Indigenous Australians manifests itself in many ways but perhaps most obscenely in the simple fact that Indigenous Australians die nearly 20 years younger than the rest of Australias citizens. Many non-Indigenous Australians do not know this. Sport in many ways has offered Indigenous Australians a platform from which to begin the slow, hard process for social justice and equity to be actualised. This paper will discuss the participation of Indigenous Australians in sport and show how sport has enabled Indigenous Australians to create a space so that they can speak out against the injustices they have experienced and to further improve on relations going into the future. The central contention is that through sport all Australians can begin a process of engaging with Indigenous history as a means to improve race relations between the two groups.
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Hing, Nerilee; Russell, Alex Myles Thomas; Lamont, Matthew; Vitartas, Peter
2017-12-01
Promotions for online sports betting during televised sports broadcasts are regularly viewed by millions of Australians, raising concerns about their impacts on vulnerable groups including at-risk and problem gamblers. This study examined whether responses to these promotions varied with problem gambling severity amongst 455 Australian Internet sports bettors participating in an online survey. Results indicated that young male Internet sports bettors are especially vulnerable to gambling problems, particularly if they hold positive attitudes to gambling sponsors who embed promotions into sports broadcasts and to the promotional techniques they use and this heightens the risk that alluring messages contribute to excessive gambling. As problem gambling severity increased, so too did recognition that these promotions have impacted negatively on their sports betting behaviour. Because a plethora of sports betting brands and promotions are now heavily integrated into sports coverage, social marketing efforts are needed to offset their persuasive appeal and counter the positive attitudes towards them that appear linked to excessive gambling amongst Internet sports bettors.
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Infectious diseases in competitive sports.
Goodman, R A; Thacker, S B; Solomon, S L; Osterholm, M T; Hughes, J M
1994-03-16
Participation in competitive sports is popular and widely encouraged throughout the United States. Reports of infectious disease outbreaks among competitive athletes and recent publicity regarding infectious disease concerns in sports underscore the need to better characterize the occurrence of these problems. To identify reports of infectious diseases in sports, we performed a comprehensive search of the medical literature (MEDLINE) and newspaper databases in two on-line services (NEXIS and DIALOG PAPERS). Articles selected from the literature review included those describing cases or outbreaks of disease in which exposure to an infectious agent was likely to have occurred during training for competitive sports or during actual competition. Articles from the newspaper review included reports of outbreaks, exposures, or preventive measures that directly or indirectly involved teams or spectators. The literature review identified 38 reports of infectious disease outbreaks or other instances of transmission through person-to-person (24 reports), common-source (nine reports), or airborne (five reports) routes; the newspaper search identified 28 reports. Infectious agents included predominantly viruses but also a variety of fungi and gram-positive and gram-negative bacteria. Our findings indicate that strategies to prevent transmission of infectious diseases in sports must recognize risks at three levels: the individual athlete, the team, and spectators or others who may become exposed to infectious diseases as a result of sports-related activities. Team physicians and others who are responsible for the health of athletes should be especially familiar with the features of infectious diseases that occur in sports and measures for the prevention of these problems.
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Proximity to Sports Facilities and Sports Participation for Adolescents in Germany
Reimers, Anne K.; Wagner, Matthias; Alvanides, Seraphim; Steinmayr, Andreas; Reiner, Miriam; Schmidt, Steffen; Woll, Alexander
2014-01-01
Objectives To assess the relationship between proximity to specific sports facilities and participation in the corresponding sports activities for adolescents in Germany. Methods A sample of 1,768 adolescents aged 11–17 years old and living in 161 German communities was examined. Distances to the nearest sports facilities were calculated as an indicator of proximity to sports facilities using Geographic Information Systems (GIS). Participation in specific leisure-time sports activities in sports clubs was assessed using a self-report questionnaire and individual-level socio-demographic variables were derived from a parent questionnaire. Community-level socio-demographics as covariates were selected from the INKAR database, in particular from indicators and maps on land development. Logistic regression analyses were conducted to examine associations between proximity to the nearest sports facilities and participation in the corresponding sports activities. Results The logisitic regression analyses showed that girls residing longer distances from the nearest gym were less likely to engage in indoor sports activities; a significant interaction between distances to gyms and level of urbanization was identified. Decomposition of the interaction term showed that for adolescent girls living in rural areas participation in indoor sports activities was positively associated with gym proximity. Proximity to tennis courts and indoor pools was not associated with participation in tennis or water sports, respectively. Conclusions Improved proximity to gyms is likely to be more important for female adolescents living in rural areas. PMID:24675689
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Proximity to sports facilities and sports participation for adolescents in Germany.
Directory of Open Access Journals (Sweden)
Anne K Reimers
Full Text Available To assess the relationship between proximity to specific sports facilities and participation in the corresponding sports activities for adolescents in Germany.A sample of 1,768 adolescents aged 11-17 years old and living in 161 German communities was examined. Distances to the nearest sports facilities were calculated as an indicator of proximity to sports facilities using Geographic Information Systems (GIS. Participation in specific leisure-time sports activities in sports clubs was assessed using a self-report questionnaire and individual-level socio-demographic variables were derived from a parent questionnaire. Community-level socio-demographics as covariates were selected from the INKAR database, in particular from indicators and maps on land development. Logistic regression analyses were conducted to examine associations between proximity to the nearest sports facilities and participation in the corresponding sports activities.The logistic regression analyses showed that girls residing longer distances from the nearest gym were less likely to engage in indoor sports activities; a significant interaction between distances to gyms and level of urbanization was identified. Decomposition of the interaction term showed that for adolescent girls living in rural areas participation in indoor sports activities was positively associated with gym proximity. Proximity to tennis courts and indoor pools was not associated with participation in tennis or water sports, respectively.Improved proximity to gyms is likely to be more important for female adolescents living in rural areas.
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The importance of sport psychology in school sport | le Roux ...
African Journals Online (AJOL)
... in sport, the effect of motivation in sport on academic performance, the fundamental cause of anxiety in sport, the fact that female athletes are likely to be relatively more comfortable with male authority figures as coaches, etcetera. The empirical research revealed that discrepancies exist between the perceptions of teacher ...
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Warlick, Kent M.
While the addition of short fiber to 3D printed articles has increased structural performance, ultimate gains will only be realized through the introduction of continuous reinforcement placed along pre-planned load paths. Most additive manufacturing research focusing on the addition of continuous reinforcement has revolved around utilization of a prefrabricated composite filament or a fiber and matrix mixed within a hot end prior to deposition on a printing surface such that conventional extrusion based FDM can be applied. Although stronger 3D printed parts can be made in this manner, high quality homogenous composites are not possible due to fiber dominated regions, matrix dominated regions, and voids present between adjacent filaments. Conventional composite manufacturing processes are much better at creating homogeneous composites; however, the layer by layer approach in which they are made is inhibiting the alignment of reinforcement with loads. Automated Fiber Placement techniques utilize in plane bending deformation of the tow to facilitate tow steering. Due to buckling fibers on the inner radius of curves, manufacturers recommend a minimum curvature for path placement with this technique. A method called continuous tow shearing has shown promise to enable the placement of tows in complex patterns without tow buckling, spreading, and separation inherent in conventional forms of automated reinforcement positioning. The current work employs fused deposition modeling hardware and the continuous tow shearing technique to manufacture high quality fiber reinforced composites with high positional fidelity, varying continuous reinforcement orientations within a layer, and plastic elements incorporated enabling the ultimate gains in structural performance possible. A mechanical system combining concepts of additive manufacturing with fiber placement via filament winding was developed. Paths with and without tension inherent in filament winding were analyzed through
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College Sports-Related Injuries - United States, 2009-10 Through 2013-14 Academic Years.
Kerr, Zachary Y; Marshall, Stephen W; Dompier, Thomas P; Corlette, Jill; Klossner, David A; Gilchrist, Julie
2015-12-11
Sports-related injuries can have a substantial impact on the long-term health of student-athletes. The National Collegiate Athletic Association (NCAA) monitors injuries among college student-athletes at member schools. In academic year 2013-14, a total of 1,113 member schools fielded 19,334 teams with 478,869 participating student-athletes in NCAA championship sports (i.e., sports with NCAA championship competition) (1). External researchers and CDC used information reported to the NCAA Injury Surveillance Program (NCAA-ISP) by a sample of championship sports programs to summarize the estimated national cumulative and annual average numbers of injuries during the 5 academic years from 2009-10 through 2013-14. Analyses were restricted to injuries reported among student-athletes in 25 NCAA championship sports. During this period, 1,053,370 injuries were estimated to have occurred during an estimated 176.7 million athlete-exposures to potential injury (i.e., one athlete's participation in one competition or one practice). Injury incidence varied widely by sport. Among all sports, men's football accounted for the largest average annual estimated number of injuries (47,199) and the highest competition injury rate (39.9 per 1,000 athlete-exposures). Men's wrestling experienced the highest overall injury rate (13.1 per 1,000) and practice injury rate (10.2 per 1,000). Among women's sports, gymnastics had the highest overall injury rate (10.4 per 1,000) and practice injury rate (10.0 per 1,000), although soccer had the highest competition injury rate (17.2 per 1,000). More injuries were estimated to have occurred from practice than from competition for all sports, with the exception of men's ice hockey and baseball. However, injuries incurred during competition were somewhat more severe (e.g., requiring ≥7 days to return to full participation) than those acquired during practice. Multiple strategies are employed by NCAA and others to reduce the number of injuries in
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Directory of Open Access Journals (Sweden)
Francis Ries
2011-01-01
Full Text Available The aim of this study was to examine the physical capacities and the physical attractiveness of Seville adolescent athletes and whether these perceptions vary by gender and sport career development. 90 adolescents from 12 to 18 years (50 girls and 40 boys completed a Spanish adaptation of the Physical Self Description Questionnaire (Marsh, Richards, Johnson, Roche y Tremaye, 1994; Tomás, 1998 and a scale to collect physical attractiveness perceived (Alfermann, Saborowski y Würth, 1997. The results show that males have a more positive physical self-concept than females. There were no relationships of the variables with the level of sports performance. The follow-up survey, one year later, noted an increase in some subdomains of self-concept in terms of positive developments in the sport career. In this study the physical changes associated with maturation in adolescence seem to have fewer influences on the perception of the body as it has been reported in other studies
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Successful approaches. Sports stars and HEAPS.
1996-01-01
In western Samoa, football stars are being used in the fight against acquired immunodeficiency syndrome (AIDS). Originally recruited by Palanitina Toelupe, chief health educator of the Health Education and Promotion Section (HEAPS), to assist with an anti-smoking campaign, the players became sensitized to issues regarding AIDS and agreed to visit high schools where they could urge young people to "Learn the Facts (about AIDS) and Pass the Word." With assistance from the SPC, HEAPS produced and broadcast radio and TV spots featuring the athletes; a poster was printed and distributed. Sports stars travel regionally and internationally; those with knowledge of AIDS and unsafe sex behavior can reinforce responsible sexual behavior among their teammates. Sports people should be targeted for AIDS and sexually transmitted disease (STD) education and prevention.
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Are coaches' health promotion activities beneficial for sport participants? A multilevel analysis.
Van Hoye, Aurélie; Heuzé, Jean-Philippe; Van den Broucke, Stephan; Sarrazin, Philippe
2016-12-01
As major actors in sports activities, sports coaches can play a significant role in health education and contribute to the psychological well-being of young people. However, not all participants in sports activities experience sports positively, which reduces the potential benefits for health. The present study investigates if coaches' efforts to promote health increase young athletes' enjoyment, self-esteem and perceived health in daily life and decrease sport dropout. To control for the variability between teams and between clubs, multilevel modeling was applied. A sample of 342 young football players completed questionnaires assessing their perceptions of coaches' Health Promotion (HP) activities, enjoyment of sports, dropout intentions, self-esteem and perceived health in daily life. HP general score was positively related to enjoyment and perceived health as well as negatively dropout intentions. Players perceiving their coaches as promoting fair and play (Respect for oneself and others) scored higher on their perceptions of enjoyment in sport, self-esteem and self-reported health, and lower on dropout intentions. Moreover, players recognizing their coaches as encouraging their healthy lifestyle also reported higher perceptions of sport enjoyment, whereas player's perceived coaches' activities on substance use were associated with lower participants' enjoyment. These results support the importance of developing HP in sports clubs. Especially, promoting respect of oneself and others seems to be the more beneficial to sport participants. Copyright © 2016 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.
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Directory of Open Access Journals (Sweden)
David R. Mottram
2005-12-01
Full Text Available This new edition includes fresh information regarding drugs use and abuse in sport and the updated worldwide anti-doping laws, and changes to the prohibited and therapeutic use exemption lists. The objectives of the book are to review/discuss the latest information on drugs in sport by considering i actions of drugs and hormones, ii medication and nutritional supplements in sport, iii the latest doping control regulations of the WADA, iv the use of banned therapeutic drugs in sport, v an assessment of the prevalence of drug taking in sport. FEATURES A common, uniform strategy and evidence-based approach to organizing and interpreting the literature is used in all chapters. This textbook is composed of twelve parts with sub-sections in all of them. The topics of the parts are: i An introduction to drugs and their use in sport, ii Drug use and abuse in sport, iii Central nervous system stimulants, iv WADA regulations in relation to drugs used in the treatment of respiratory tract disorders, v Androgenic anabolic steroids, vi Peptide and glycoprotein hormones and sport, vii Blood boosting and sport, viii Drug treatment of inflammation in sports injuries, ix Alcohol, anti-anxiety drugs and sport, x Creatine, xi Doping control and sport, xii Prevalence of drug misuse in sport. Each specific chapter has been systematically developed from the data available in prospective, retrospective, case-control, and cross-sectional studies. The tables and figures are numerous, helpful and very useful. AUDIENCE The book provides a very useful resource for students on sports related courses, coaches and trainers, researchers, nutritionists, exercise physiologists, pharmacologists, healthcare professionals in the fields of sports medicine and those involved in the management and administration side of sport. The readers are going to discover that this is an excellent reference book. Extensively revised new edition of this book is also a first-rate resource for
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Critical overview of applications of genetic testing in sport talent identification.
Roth, Stephen M
2012-12-01
Talent identification for future sport performance is of paramount interest for many groups given the challenges of finding and costs of training potential elite athletes. Because genetic factors have been implicated in many performance- related traits (strength, endurance, etc.), a natural inclination is to consider the addition of genetic testing to talent identification programs. While the importance of genetic factors to sport performance is generally not disputed, whether genetic testing can positively inform talent identification is less certain. The present paper addresses the science behind the genetic tests that are now commercially available (some under patent protection) and aimed at predicting future sport performance potential. Also discussed are the challenging ethical issues that emerge from the availability of these tests. The potential negative consequences associated with genetic testing of young athletes will very likely outweigh any positive benefit for sport performance prediction at least for the next several years. The paper ends by exploring the future possibilities for genetic testing as the science of genomics in sport matures over the coming decade(s).
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Patricios, JS; Ardern, CL; Hislop, MD; Aubry, M; Bloomfield, P; Broderick, C; Clifton, P; Echemendia, RJ; Ellenbogen, RG; Falvey, ÉC; Fuller, GW; Grand, J; Hack, D; Harcourt, PR; Hughes, D
2018-01-01
The 2017 Berlin Concussion in Sport Group Consensus Statement provides a global summary of best practice in concussion prevention, diagnosis and management, underpinned by systematic reviews and expert consensus. Due to their different settings and rules, individual sports need to adapt concussion guidelines according to their specific regulatory environment. At the same time, consistent application of the Berlin Consensus Statement's themes across sporting codes is likely to facilitate super...
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Lanfranchi, M-C; Maïano, C; Morin, A J S; Therme, P
2014-08-01
Very few studies examined the prevalence and sport-related predictors of disturbed eating attitudes and behaviors (DEABs) among adolescents involved in sport practice, and their results are mixed and inconclusive. These inconsistencies are most likely due to their methodological heterogeneity and to the fact that none of these studies took into consideration the potentially relevant characteristics of the sport practice context. This study attempts to answer this limitation among French adolescents not involved or involved in various sports contexts defined based on their organization, leanness-centration, and competitive level. Participants were 335 adolescents involved in sport practice, and 435 adolescents not involved in any form of regular sport practice. The DEABs were measured using the Eating Attitudes Test-26. Global results do not showed any significant association between the status of the participants and DEAB. However, these results drastically changed when we considered the potential moderating role of sex and age on these relations. Indeed, sports involvement in general, and involvement in leanness and competitive sports were found to exert sex- and age-differentiated effects on the risks of presenting clinically significant levels of DEAB. This study suggests the importance of monitoring, preventive, and early intervention mechanisms within the context of practice, particularly for adolescent girls. © 2013 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
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Drug policy in sport: hidden assumptions and inherent contradictions.
Smith, Aaron C T; Stewart, Bob
2008-03-01
This paper considers the assumptions underpinning the current drugs-in-sport policy arrangements. We examine the assumptions and contradictions inherent in the policy approach, paying particular attention to the evidence that supports different policy arrangements. We find that the current anti-doping policy of the World Anti-Doping Agency (WADA) contains inconsistencies and ambiguities. WADA's policy position is predicated upon four fundamental principles; first, the need for sport to set a good example; secondly, the necessity of ensuring a level playing field; thirdly, the responsibility to protect the health of athletes; and fourthly, the importance of preserving the integrity of sport. A review of the evidence, however, suggests that sport is a problematic institution when it comes to setting a good example for the rest of society. Neither is it clear that sport has an inherent or essential integrity that can only be sustained through regulation. Furthermore, it is doubtful that WADA's anti-doping policy is effective in maintaining a level playing field, or is the best means of protecting the health of athletes. The WADA anti-doping policy is based too heavily on principals of minimising drug use, and gives insufficient weight to the minimisation of drug-related harms. As a result drug-related harms are being poorly managed in sport. We argue that anti-doping policy in sport would benefit from placing greater emphasis on a harm minimisation model.
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The Impact of the Global Economic Crisis on Sport
Directory of Open Access Journals (Sweden)
Szabó Földesi Gyöngyi
2014-09-01
Full Text Available The current economic crisis is the worst one in decades; it is surely the worst one the world has experienced since the Great Depression in the 1930s. Although it has affected countries with different positions in the global village in different ways and to different degrees, it has had worldwide consequences in most sub-systems of societies, including sport. These are hot issues in management and in everyday practice; still, relatively little attention has been paid to them within the social sciences. The objective of this paper is to close this gap by studying how the recent global economic crisis has affected sport. Two spheres of sport have been selected for analysis: mega sport events and grassroots sports. These two fields were chosen because of their social importance and because there is little scientific evidence about how they face and answer the challenges coming from the economic crisis. The topic is discussed from the theoretical perspective of the nexus of economy, politics, society, and culture. The methodological considerations refer to the lack of reliable sources for economic data related to sport. The results indicate that mega sport events have suffered less from the recession: there might be new actors, but the show goes on. The true loser is grassroots sport. Household impoverishment might lead to a decreased willingness of the individual practitioners to pay for sports goods and services and to a decreased contribution of volunteers working in sport. The funding models vary across countries, but generally both public and private funding has been reduced. In conclusion, it is underlined that no fields of sport have been left untouched by the current global economic crisis, but grassroots sports have suffered the most from it.
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The partial-reinforcement extinction effect and the contingent-sampling hypothesis.
Hochman, Guy; Erev, Ido
2013-12-01
The partial-reinforcement extinction effect (PREE) implies that learning under partial reinforcements is more robust than learning under full reinforcements. While the advantages of partial reinforcements have been well-documented in laboratory studies, field research has failed to support this prediction. In the present study, we aimed to clarify this pattern. Experiment 1 showed that partial reinforcements increase the tendency to select the promoted option during extinction; however, this effect is much smaller than the negative effect of partial reinforcements on the tendency to select the promoted option during the training phase. Experiment 2 demonstrated that the overall effect of partial reinforcements varies inversely with the attractiveness of the alternative to the promoted behavior: The overall effect is negative when the alternative is relatively attractive, and positive when the alternative is relatively unattractive. These results can be captured with a contingent-sampling model assuming that people select options that provided the best payoff in similar past experiences. The best fit was obtained under the assumption that similarity is defined by the sequence of the last four outcomes.
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Professional development in sport psychology : relating learning experiences to learning outcomes
Hutter, R. I. (Vana); Oldenhof-Veldman, Tanja; Pijpers, J. R. (Rob); Oudejans, Raôul R.D.
2017-01-01
To enhance the training of sport psychology consultants, it is important to know which learning experiences are useful for which components of professional development. We interviewed 15 novice consultants on their learning experiences related to 13 different topics. Traditional learning experiences
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Positive reinforcement to promote safer sex among clients.
Raman, S
1992-01-01
The AIDS Research Foundation of India (ARFI) began an intervention program with sex workers in Madras where the women reported that they were willing to use condoms, whereas the customers were not. Accordingly, ARFI is focusing on clients using a positive reinforcement approach: repetition of the desirability of condom use by communication. First, truck drivers and dock workers have been targeted. Drivers interviewed by ARFI were familiar with the condom as a contraceptive method rather than a disease-preventing method, and used it with their wives. The ARFI program has convinced tobacco shopkeepers to stock condoms for drivers. Truckers receive key chains with a holder for a condom. At transit site tea shops songs are aired about road and roadside safety sponsored by a tire manufacturer with a message about rubber (tires and condoms). Women selling sex at transit sites are also educated about the human immunodeficiency virus (HIV) infection and sexually transmitted diseases (STDs) while attempting to increase their level of hygiene. The typical Friday night sex-seeking behavior among dock workers consists of drinking in a wine shop and soliciting sex workers. Port management and unions have also been recruited for promoting AIDS-related education after participating in health education sessions with flip charts and flash cards. Rest rooms display posters on condom use, some men have been recruited as condom holders for distribution on Friday nights, and barber shops also feature posters with messages about safer sex. AIDS/STD prevention programs have to deal with prevailing practices, values, and beliefs. Results indicate increased condom use among clients as shown by increased sales at transit site tobacco shops and shops around the port. In the future the program will pay more attention to improving the negotiation skills of sex workers.
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Custers, Kathleen; McNallie, Jenna
2016-06-30
Rape affects a large proportion of women in the United States but is one of the most underreported crimes. It is believed that rape myth acceptance contributes to low reporting rates. We tested whether television sports exposure was indirectly related to higher acceptance of rape myth beliefs. An online survey involving 465 undergraduate students showed that viewing TV sports was positively related to hostile sexism, benevolent sexism, and sexual objectification of women. Through these variables, TV sports was indirectly and positively associated with rape myth acceptance. These results suggest that sports programming contributes to the perpetuation of rape myths in society. © The Author(s) 2016.
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Lundvall, Suzanne; Meckbach, Susanne
2012-01-01
This paper focuses on widening participation in higher education and the low recruitment of students from diverse backgrounds within sport-related programs. The purpose of the study has been to describe and increase the understanding of how the preconditions and premises for choosing to study "sport" appear to students from diverse…
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Imaging of sports-related hip and groin injuries.
Lischuk, Andrew W; Dorantes, Thomas M; Wong, William; Haims, Andrew H
2010-05-01
A normally functioning hip joint is imperative for athletes who use their lower extremities with running, jumping, or kicking activities. Sports-related injuries of the hip and groin are far less frequent than injuries to the more distal aspect of the extremity, accounting for less than 10% of lower extremity injuries. Despite the lower incidence, hip and groin injuries can lead to significant clinical and diagnostic challenges related to the complex anatomy and biomechanical considerations of this region. Loads up to 8 times normal body weight have been documented in the joint in common daily activities, such as jogging, with significantly greater force expected during competitive athletics. Additionally, treatment for hip and groin injuries can obviate the participation of medical and surgical specialties, with a multidisciplinary approach frequently required. Delay in diagnosis and triage of these injuries may cause loss of time from competition and, potentially, early onset of degenerative changes. Magnetic resonance imaging (MRI) of the hip has proven to be the gold standard for the diagnosis of sports-related hip and groin injuries in the setting of negative radiographs. With its exquisite soft tissue contrast, multiplanar capabilities, and lack of ionizing radiation, MRI is unmatched in the noninvasive diagnosis of intra-articular and extra-articular pathology, as well as intraosseous processes. This review focuses on MRI of common athletic injuries of the hip and groin, including acetabular labral tears, femoral acetabular impingement syndrome, muscle injuries around the hip and groin (including athletic pubalgia), and athletic osseous injuries.
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Oliveira, Ana; Monteiro, Ângela; Jácome, Cristina; Afreixo, Vera; Marques, Alda
2017-06-01
Group sports interventions have been developed to improve health-related physical fitness of overweight/obese youth. However, its benefits are not systematically documented. This study synthesizes the evidence about the effects of group sports on health-related physical fitness of overweight/obese youth. Pubmed, Web of Knowledge, Scopus, Medline, CINAHL, SportDiscus, and Academic Search Complete were searched in February 2016. Studies assessing the effects of group sports on body composition, cardiorespiratory endurance, muscle strength, flexibility, and neuromotor fitness of overweight/obese youth (aged 0.05), maximal power output (ES from 0 to 0.06; P > 0.05), sit-and-reach test (pooled ES = 0.26; 95% CI = -0.16 to 0.68) and agility test (ES = 0; P = 0.48). Group sports improve body composition, cardiorespiratory endurance, and hand grip strength of overweight/obese youth. Flexibility and neuromotor fitness do not seem to change following group sports. © 2016 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
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The Relative Age Effect in Elite Sport: The French Case
Delorme, Nicolas; Boiche, Julie; Raspaud, Michel
2009-01-01
The relative age effect (RAE) is considered a common phenomenon in elite sport. However, it has not been examined systematically in previous research, and the mechanisms likely to generate or to limit such an effect are little understood. This paper investigates the prevalence of the RAE in French professional championship-level players, taking…
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Post, Eric G; Trigsted, Stephanie M; Schaefer, Daniel A; Cadmus-Bertram, Lisa A; Watson, Andrew M; McGuine, Timothy A; Brooks, M Alison; Bell, David R
2018-02-22
Overuse injuries in youth athletes are becoming increasingly common which may be a result of the prevalence of year-round specialized sport participation. Previous research has identified sport volume recommendations related to months per year, hours per week, and simultaneous participation in multiple sports leagues. Coaches are a primary influence on a youth athlete's decision to specialize in a single sport. Therefore, identifying coaches' baseline beliefs and perceptions is important for developing strategies to educate coaches about safe sport participation. A total of 253 youth sport coaches (207 males) completed an anonymous online questionnaire regarding knowledge of sport volume recommendations and attitudes and beliefs regarding sport specialization. Eligible participants were required to serve as a head or assistant coach of a youth sport team in the past 12 months whose members were between the ages of 12 and 18. Most coaches were unaware of recommendations regarding the maximum number of months per year (79.4%), hours per week in one sport (79.3%), or number of simultaneous leagues for an athlete to participate in to reduce injury (77.6%). Fewer than half (43.2%) of all coaches were "very" or "extremely" concerned about the risk of injury in youth sports. A majority (60.1%) believed that sport specialization was either "quite a bit" or "a great deal" of a problem. Two-thirds (67.2%) responded that year-round participation in a single sport was either "very" or "extremely" likely to increase an athlete's risk of injury. Although the responses to this survey were predominantly from coaches from one state, our results suggest that coaches are unaware of sport volume recommendations but are concerned about specialization. Future efforts are needed to communicate these recommendations to coaches in order to reduce the risk of overuse injury in youth sports.
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DEFF Research Database (Denmark)
2003-01-01
A composite panel having front and back faces, the panel comprising facing reinforcement, backing reinforcement and matrix material binding to the facing and backing reinforcements, the facing and backing reinforcements each independently comprising one or more reinforcing sheets, the facing rein...... by matrix material, the facing and backing reinforcements being interconnected to resist out-of-plane relative movement. The reinforced composite panel is useful as a barrier element for shielding structures, equipment and personnel from blast and/or ballistic impact damage....
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Neurologic emergencies in sports.
Williams, Vernon B
2014-12-01
Sports neurology is an emerging area of subspecialty. Neurologists and non-neurologists evaluating and managing individuals participating in sports will encounter emergencies that directly or indirectly involve the nervous system. Since the primary specialty of sports medicine physicians and other practitioners involved in the delivery of medical care to athletes in emergency situations varies significantly, experience in recognition and management of neurologic emergencies in sports will vary as well. This article provides a review of information and elements essential to neurologic emergencies in sports for the practicing neurologist, although content may be of benefit to readers of varying background and expertise. Both common neurologic emergencies and less common but noteworthy neurologic emergencies are reviewed in this article. Issues that are fairly unique to sports participation are highlighted in this review. General concepts and principles related to treatment of neurologic emergencies that are often encountered unrelated to sports (eg, recognition and treatment of status epilepticus, increased intracranial pressure) are discussed but are not the focus of this article. Neurologic emergencies can involve any region of the nervous system (eg, brain, spine/spinal cord, peripheral nerves, muscles). In addition to neurologic emergencies that represent direct sports-related neurologic complications, indirect (systemic and generalized) sports-related emergencies with significant neurologic consequences can occur and are also discussed in this article. Neurologists and others involved in the care of athletes should consider neurologic emergencies in sports when planning and providing medical care.
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Sport Management Survey. Employment Perspectives.
Quain, Richard J.; Parks, Janet B.
1986-01-01
A survey of sport management positions was designed to determine projected vacancy rates in six sport management career areas. Respondents to the survey were also questioned regarding their awareness of college professional preparation programs. Results are presented. (MT)
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Stoller, Jacqueline; Carson, James D; Garel, Alisha; Libfeld, Paula; Snow, Catherine L; Law, Marcus; Frémont, Pierre
2014-06-01
To identify differences and gaps in recommendations to patients for the management of sport-related concussion among FPs, emergency department physicians (EDPs), and pediatricians. A self-administered, multiple-choice survey was e-mailed to FPs, EDPs, and pediatricians. The survey had been assessed for content validity. Two community teaching hospitals in the greater Toronto area in Ontario. Two hundred seventy physicians, including FPs, EDPs, and pediatricians, were invited to participate. Identification of sources of concussion management information, usefulness of concussion diagnosis strategies, and whether physicians use common terminology when explaining cognitive rest strategies to patients after sport-related concussions. The response rate was 43.7%. Surveys were completed by 70 FPs, 23 EDPs, and 11 pediatricians. In total, 49% of FP, 52% of EDP, and 27% of pediatrician respondents reported no knowledge of any consensus statements on concussion in sport, and 54% of FPs, 86% of EDPs, and 78% of pediatricians never used the Sport Concussion Assessment Tool, version 2. Only 49% of FPs, 57% of EDPs, and 36% of pediatricians always advised cognitive rest. This study identified large gaps in the knowledge of concussion guidelines and implementation of recommendations for treating patients with sport-related concussions. Although some physicians recommended physical and cognitive rest, a large proportion failed to consistently advise this strategy. Better knowledge transfer efforts should target all 3 groups of physicians. Copyright© the College of Family Physicians of Canada.
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Self-perceptions, self-worth and sport participation in adolescents.
Balaguer, Isabel; Atienza, Francisco L; Duda, Joan L
2012-07-01
The purpose of this study was to study the associations between specific self-perceptions and global self-worth with different frequency levels of sport participation among Spanish boys and girls adolescents. Students (457 boys and 460 girls) completed the Self Perception Profile for Children (Harter, 1985) and items assessing sport engagement from The Health Behavior in School Children Questionnaire (Wold, 1995). Results showed that some specific dimensions of self-perception were related to different frequency of sport participation whereas overall judgments of self-worth did not. Specifically, for boys and girls, higher levels of sport participation were positively associated to Athletic Competence, and for boys were also associated with Physical Appearance and Social Acceptance. The potential implications of domain specific socialisation processes on the configuration of self-perceptions are highlighted.
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MR imaging in sports-related glenohumeral instability
International Nuclear Information System (INIS)
Woertler, Klaus; Waldt, Simone
2006-01-01
Sports-related shoulder pain and injuries represent a common problem. In this context, glenohumeral instability is currently believed to play a central role either as a recognized or as an unrecognized condition. Shoulder instabilities can roughly be divided into traumatic, atraumatic, and microtraumatic glenohumeral instabilities. In athletes, atraumatic and microtraumatic instabilities can lead to secondary impingement syndromes and chronic damage to intraarticular structures. Magnetic resonance (MR) arthrography is superior to conventional MR imaging in the diagnosis of labro-ligamentous injuries, intrinsic impingement, and SLAP (superior labral anteroposterior) lesions, and thus represents the most informative imaging modality in the overall assessment of glenohumeral instability. This article reviews the imaging criteria for the detection and classification of instability-related injuries in athletes with special emphasis on the influence of MR findings on therapeutic decisions. (orig.)
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Cobley, Stephen; Baker, Joseph; Wattie, Nick; McKenna, Jim
2009-01-01
Annual age-grouping is a common organizational strategy in sport. However, such a strategy appears to promote relative age effects (RAEs). RAEs refer both to the immediate participation and long-term attainment constraints in sport, occurring as a result of chronological age and associated physical (e.g. height) differences as well as selection practices in annual age-grouped cohorts. This article represents the first meta-analytical review of RAEs, aimed to collectively determine (i) the overall prevalence and strength of RAEs across and within sports, and (ii) identify moderator variables. A total of 38 studies, spanning 1984-2007, containing 253 independent samples across 14 sports and 16 countries were re-examined and included in a single analysis using odds ratios and random effects procedures for combining study estimates. Overall results identified consistent prevalence of RAEs, but with small effect sizes. Effect size increased linearly with relative age differences. Follow-up analyses identified age category, skill level and sport context as moderators of RAE magnitude. Sports context involving adolescent (aged 15-18 years) males, at the representative (i.e. regional and national) level in highly popular sports appear most at risk to RAE inequalities. Researchers need to understand the mechanisms by which RAEs magnify and subside, as well as confirm whether RAEs exist in female and more culturally diverse contexts. To reduce and eliminate this social inequality from influencing athletes' experiences, especially within developmental periods, direct policy, organizational and practitioner intervention is required.
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A social perspective on sport-related trends and careers | Hollander ...
African Journals Online (AJOL)
Practices in the sports industry, sports management and the sociological study of sport are seldom integrated to provide an integrated theoretical framework for analysis and contextualization. The aim of this explorative academic enquiry was to develop a social conceptual framework for the analysis, explanation and ...
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Behavior of reinforced concrete beams reinforced with GFRP bars
Directory of Open Access Journals (Sweden)
D. H. Tavares
Full Text Available The use of fiber reinforced polymer (FRP bars is one of the alternatives presented in recent studies to prevent the drawbacks related to the steel reinforcement in specific reinforced concrete members. In this work, six reinforced concrete beams were submitted to four point bending tests. One beam was reinforced with CA-50 steel bars and five with glass fiber reinforced polymer (GFRP bars. The tests were carried out in the Department of Structural Engineering in São Carlos Engineering School, São Paulo University. The objective of the test program was to compare strength, reinforcement deformation, displacement, and some anchorage aspects between the GFRP-reinforced concrete beams and the steel-reinforced concrete beam. The results show that, even though four GFRP-reinforced concrete beams were designed with the same internal tension force as that with steel reinforcement, their capacity was lower than that of the steel-reinforced beam. The results also show that similar flexural capacity can be achieved for the steel- and for the GFRP-reinforced concrete beams by controlling the stiffness (reinforcement modulus of elasticity multiplied by the bar cross-sectional area - EA and the tension force of the GFRP bars.
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Geography of a Sports Metropolis
DEFF Research Database (Denmark)
Feddersen, Arne; Ahlfeldt, Gabriel M.
2010-01-01
This study analyses the sports infrastructure of Hamburg, Germany, from the residents’ perspective. Empirical evidence is provided for the Sports Place Theory developed by BALE (2003) using a micro-level dataset of 1,319 sports facilities, which is merged with highly disaggregated data......, locations’ endowment of sports infrastructure is captured by potentiality variables, while accounting for natural and unnatural barriers. Given potential demand, central areas are found to be relatively underprovided with a sports infrastructure compared to peripheral areas where opportunity cost...... in the form of price of land is lower. The determinants of spatial distribution vary systematically across types of sports facilities. Publicly provided open sports fields and sport halls tend to be concentrated in areas of relatively low income which is in line with their social infrastructure character...
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World Cup Cities Project: movement by the sport legacy of sporting mega events
Directory of Open Access Journals (Sweden)
Rodrigo Pojar Paiva
2013-11-01
Full Text Available The achievement of sporting mega events is configured as an exceptional opportunity for the promotion of sports in the host cities. For this positive legacy to happen it must be previously planned, executed and monitored. This study aimed to present the national structure of the World Cup Cities Project and analyse the results obtained in six host cities of the FIFA World Cup 2014. The results showed that the social and sports legacy was not planned by public managers and there are no systems of control and evaluation of sport in any of the host cities, until the realization of the project World Cup Cities.
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Directory of Open Access Journals (Sweden)
Michael D Cusimano
Full Text Available There is a gap in knowledge about the mechanisms of sports-related brain injuries. The objective of this study was to determine the mechanisms of brain injuries among children and youth participating in team sports.We conducted a retrospective case series of brain injuries suffered by children participating in team sports. The Canadian Hospitals Injury Reporting and Prevention Program (CHIRPP database was searched for brain injury cases among 5-19 year-olds playing ice hockey, soccer, American football (football, basketball, baseball, or rugby between 1990 and 2009. Mechanisms of injury were classified as "struck by player," "struck by object," "struck by sport implement," "struck surface," and "other." A descriptive analysis was performed.There were 12,799 brain injuries related to six team sports (16.2% of all brain injuries registered in CHIRPP. Males represented 81% of injuries and the mean age was 13.2 years. Ice hockey accounted for the greatest number of brain injuries (44.3%, followed by soccer (19.0% and football (12.9%. In ice hockey, rugby, and basketball, striking another player was the most common injury mechanism. Football, basketball, and soccer also demonstrated high proportions of injuries due to contact with an object (e.g., post among younger players. In baseball, a common mechanism in the 5-9 year-old group was being hit with a bat as a result of standing too close to the batter (26.1% males, 28.3% females.Many sports-related brain injury mechanisms are preventable. The results suggest that further efforts aimed at universal rule changes, safer playing environments, and the education of coaches, players, and parents should be targeted in maximizing prevention of sport-related brain injury using a multifaceted approach.
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Sports as a means of inclusion under vulnerability conditions
Directory of Open Access Journals (Sweden)
Felicia Fernández Pérez
2018-05-01
Full Text Available This research is related to the social integration of a group of young people who have experienced determined behaviors after criminal penalties. Considering the strength that sports present to tackle these difficulties is that the author of this work has made use of sport activity as a means of inclusion under vulnerability conditions. In correspondence with it, it was traced as objective to elaborate a system of activities, from the sport, favor the social integration of youngsters with criminal behaviors. The present time of the topic is motivated by these previous reasons, in this very challenging moments for the unity of the Cuban people, the agglutination of all the social sectors as indispensable conditions in the sustainability and improvement of Socialism, includes the process of the youths' social incorporation with criminal behaviors. Their scientific novelty deals with the possibilities that it offers for its adjustment according to sports, considering the necessary relationship among the diagnosis, the orientation and the treatment to youngsters with criminal behaviors. Their importance is reinforced, with the support of the whole System of Prevention and Social Care in Cuba, especially in the community environment it is applied the method investigation action fundamentally. For this aim it was applied essentially methods at empirical level such as: the observation, the documentary revision, the interview, the questionnaire and the experiment. On this base it was carried out evaluations leading to recommend their implementation in other contexts with the purpose of contributing to the social integration of youngsters with criminal behaviors.
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BodySense: an evaluation of a positive body image intervention on sport climate for female athletes.
Buchholz, Annick; Mack, Heidi; McVey, Gail; Feder, Stephen; Barrowman, Nicholas
2008-01-01
The goal of the present study was to evaluate the effectiveness of a selective prevention program designed to reduce pressures to be thin in sport, and to promote positive body image and eating behaviors in young female athletes. Participants were competitive female gymnasts (aged 11 to 18 years), parents, and coaches from 7 gymnastic clubs across Ontario, Canada. Four of the seven clubs were randomized to receive the 3-month intervention program (IG) aimed at increasing awareness and positive climate change of body image pressures for athletes in their clubs. Three clubs were randomized to the control group (CG). A total of 62 female gymnasts (IG n = 31; CG n = 31) completed self-report questionnaires examining perceptions of pressure to be thin within their sports clubs, self-efficacy over dieting pressures, awareness and internalization of societal pressure to be thin, body esteem, and eating attitudes and behaviours before and following the intervention. A total of 32 mothers (IG n = 24; CG n = 8) completed measures examining their perceptions of their daughter's pressure to be thin, awareness and internalization of societal pressures to be thin, daughter's self-efficacy over dieting pressures, in addition to mothers' beliefs regarding thinness and success for women in society, before and following the intervention. The findings revealed that participation in the BodySense program resulted in athletes perceiving a reduction in pressure from their sports clubs to be thin, though no changes were found in body esteem, the EAT, or the SATAQ. No significant change was observed over time on mothers' measures. The role of climate change for prevention of eating disorders in athletes is discussed.
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Which features are important for effectiveness of sport- and health-related apps?
Joan Dallinga; Marije Baart de la Faille-Deutekom; Mark Janssen; Steven Vos
2017-01-01
In this presentation we presented the results of expert meetings. The aim was to identify which features in sport- and health-related apps contribute to effectiveness of apps. A nominal group technique was used.
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No Relative Age Effect in the Birth Dates of Award-Winning Athletes in Male Professional Team Sports
Ford, Paul R.; Williams, A. Mark
2011-01-01
Athletes born early within an annual youth age-group selection year are probably more likely to be selected for sports teams and talent development programs than those born later in that year. Overrepresentation of these relatively older athletes in youth and adult sport is known as the relative age effect (RAE). RAEs were found in these popular…
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Directory of Open Access Journals (Sweden)
Milan Cvetković
2014-06-01
variance in this study show that groups are different regarding the observed space of anaerobic abilities of football players. Discriminant analysis confirmed these differences, which means that there is a significant difference and clearly defined boundary between some characteristics for assessing anaerobic abilities in relation to the length of sports engagement. The values obtained by univariate analysis of variance indicate statistically significant differences in all observed variables for the assessment of anaerobic abilities in relation to the length of sports engagement. Discussion: By analyzing the results, it can be concluded that the length of sports engagements and work in this age has positive effects on anaerobic power. Cedric et al. (2007 reached the similar conclusions using the battery of tests for the assessment of anaerobic abilities. On a sample of 186 players of the national team of Belgium (U 15, U 16, U 17, U 18 and U 19 they came to the conclusion that anaerobic power increases progressively with age (15 to 19 yrs., but the highest increase can be observed between 15th and 17th year of age. References: Cedric L, Marc GV, Thierry B (2007. Journals of Sports Science and Medicine, 10, 115. Cipryan L, Gajda V (2011. Journal of Human Kinetics, 28, 63-71. Mackenzie B (2005. 101 Performance Evaluation Tests. London: Electric Word plc. Sayers A, Sayers B, Binkley H (2008. Strength and Conditioning Journal, 30, 2.
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Kreider, Richard B; Kalman, Douglas S; Antonio, Jose; Ziegenfuss, Tim N; Wildman, Robert; Collins, Rick; Candow, Darren G; Kleiner, Susan M; Almada, Anthony L; Lopez, Hector L
2017-01-01
Creatine is one of the most popular nutritional ergogenic aids for athletes. Studies have consistently shown that creatine supplementation increases intramuscular creatine concentrations which may help explain the observed improvements in high intensity exercise performance leading to greater training adaptations. In addition to athletic and exercise improvement, research has shown that creatine supplementation may enhance post-exercise recovery, injury prevention, thermoregulation, rehabilitation, and concussion and/or spinal cord neuroprotection. Additionally, a number of clinical applications of creatine supplementation have been studied involving neurodegenerative diseases (e.g., muscular dystrophy, Parkinson's, Huntington's disease), diabetes, osteoarthritis, fibromyalgia, aging, brain and heart ischemia, adolescent depression, and pregnancy. These studies provide a large body of evidence that creatine can not only improve exercise performance, but can play a role in preventing and/or reducing the severity of injury, enhancing rehabilitation from injuries, and helping athletes tolerate heavy training loads. Additionally, researchers have identified a number of potentially beneficial clinical uses of creatine supplementation. These studies show that short and long-term supplementation (up to 30 g/day for 5 years) is safe and well-tolerated in healthy individuals and in a number of patient populations ranging from infants to the elderly. Moreover, significant health benefits may be provided by ensuring habitual low dietary creatine ingestion (e.g., 3 g/day) throughout the lifespan. The purpose of this review is to provide an update to the current literature regarding the role and safety of creatine supplementation in exercise, sport, and medicine and to update the position stand of International Society of Sports Nutrition (ISSN).
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Directory of Open Access Journals (Sweden)
Antonia Pelegrín
2013-10-01
Full Text Available This paper gives an analysis of personal and environmental variables related to aggressive and unsportsmanlike behaviours in a sample of Spanish sports competitors. We aim to: 1 ascertain how personality and expression variables relate to trait anger control and unsportsmanlike behaviors, in relation to men and women, age groups and type of sport, 2 identify and analyze the most maladjusted and the most adjusted profiles in a sample of sportsmen and women; 3 identify personality variables as predictors of aggressive and unsportsmanlike behaviours. Differences in gender, age and type of sport were appreciated in personality variables and in aggressive and unsportsmanlike behaviours. Men have better emotional adjustment (more behaviours of emotional stability, better self-esteem, self-confidence and leadership, and have worse social adjustment (fewer behaviours of tolerance, social skills and responsibility; more aggressive and unsportsmanlike behaviours. Women have better social adjustment (more behaviours of tolerance, understanding, adaptation, responsibility, discipline and sociability, and have worse emotional adjustment (greater anxiety. More aggressive and unsportsmanlike behaviours and greater emotional maladjustment were found in the youngest sportsmen and women. Aggressive and unsportsmanlike behaviours were more frequent in team sports. This study highlights personality variables as predictors of aggressive and unsportsmanlike behaviours.
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Sport science relevance and application: perceptions of UK coaches.
Martindale, Russell; Nash, Christine
2013-01-01
While sport science can have significant and positive impact on coaches and athletes, there is still a general consensus that the transfer of sport science knowledge to coaching is poor. Given this apparent dilemma, this study investigated the perceptions of sport science from coaches across four different sports (football, rugby league, curling and judo) across three different levels (elite, developmental and novice). Specifically, 58 coaches (19 football; 21 rugby league; 9 curling; 9 judo) drawn evenly from novice, developmental and elite groups agreed to take part and were interviewed. Three key features emerged from the analysis 1) Practical application and relevance 2) Integration and access, 3) Language. In short, there was significant variability in the extent to which sport science was considered relevant and to whom, although interestingly this was not strongly related to coaching level. This inconsistency of understanding was a barrier to sport science engagement in some instances, as was the challenge of operationalising information for specific contexts. Furthermore, availability of opportunities and resources were often left to chance, while overuse of jargon and inability for research and practitioners to consider sport specific needs were also considered barriers to engagement. Implications for research and practice are discussed.
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R. Prins (Remco); S.M. Mohnen (Sigrid); F.J. van Lenthe (Frank); J. Brug (Hans); A. Oenema (Anke)
2012-01-01
textabstractBackground: The aim of this study is to explore whether availability of sports facilities, parks, and neighbourhood social capital (NSC) and their interaction are associated with leisure time sports participation among Dutch adolescents.Methods: Cross-sectional analyses were conducted on
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Prins, R.G.; Mohnen, S.M.; van Lenthe, F.; Brug, J.; Oenema, A.
2012-01-01
Background: The aim of this study is to explore whether availability of sports facilities, parks, and neighbourhood social capital (NSC) and their interaction are associated with leisure time sports participation among Dutch adolescents.Methods: Cross-sectional analyses were conducted on complete
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Gambling and Sport: Implicit Association and Explicit Intention Among Underage Youth.
Li, En; Langham, Erika; Browne, Matthew; Rockloff, Matthew; Thorne, Hannah
2018-03-23
This study examined whether an implicit association existed between gambling and sport among underage youth in Australia, and whether this implicit association could shape their explicit intention to gamble. A sample of 14-17 year old Australian participants completed two phases of tasks, including an implicit association test based online experiment, and a post-experiment online survey. The results supported the existence of an implicit association between gambling and sport among the participants. This implicit association became stronger when they saw sport-relevant (vs. sport-irrelevant) gambling logos, or gambling-relevant (vs. gambling-irrelevant) sport names. In addition, this implicit association was positively related to the amount of sport viewing, but only among those participants who had more favorable gambling attitudes. Lastly, gambling attitudes and advertising knowledge, rather than the implicit association, turned out to be significant predictors of the explicit intention to gamble.
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The epidemiology of sports-related injuries in older adults: a central European epidemiologic study.
Kammerlander, Christian; Braito, Matthias; Kates, Stephen; Jeske, Christian; Roth, Tobias; Blauth, Michael; Dallapozza, Christian
2012-10-01
The population is rapidly aging and remaining more active over the age of 65. An increasing number of sports related injuries in individuals 65 and older are thus anticipated. The aim of this study is to analyze the epidemiology of sports injuries in the age group aged 65 and older. Data from the medical records of adults aged 65 years and older who were treated for sports-related injuries at a level one trauma center between December 1994 and February 2008 was collected and statistically analyzed. A total of 2635 patients met our inclusion criteria. There were 1647 men (62.5%) and 988 women (37.5%) with a mean age of 70.9 years. The yearly number of injuries doubled during the study period (1996-2007). The most common mechanism of injury was a simple fall from standing height (69%). Nearly 75% of all injuries occurred during alpine skiing, cycling or mountain climbing. The median Injury Severity Score was 4. Minor injuries and wounds (40%) were recorded most commonly followed by fractures (27%), sprains, ligament injuries (19%) and injuries of muscles and tendons (6%). The most frequent diagnoses were minor injuries to the head and ligament injuries around the knee joint. Injuries to the upper extremities occurred in 33.7%, injuries to the lower extremities in 29.4% and injuries to the head occurred in 20% of the patients. Women sustained substantially more fractures than men. Adults aged 65 and older are remaining active in sports, which results in higher numbers of sports related injuries in this age group. Identification of type, mechanism and distribution of the injuries can help with the recognition of risk factors for injury. This may enable us to develop appropriate preventative measures to reduce the incidence, and morbidity of such injuries.
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The Strategies for Character Building through Sports Participation
M.S. Omar-Fauzee; Mohd Nizam Nazarudin; Yudha M. Saputra; Nina Sutresna; Duangkrai Taweesuk; Wipoj Chansem; Rozita Abd. Latif; Soh Kim Geok
2012-01-01
The sport participation has been a major part of our life in the societies. Studies on sports participation have found that sports have both positive and negative influence on character buildings. It has been on-going debate on whether ‘sports build character’ but through literature analysis, author had found that ‘with the intention, sports do build character.’ Therefore, strategies of building character through sports are suggested in this paper.
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Sports Specialization in Young Athletes
Jayanthi, Neeru; Pinkham, Courtney; Dugas, Lara; Patrick, Brittany; LaBella, Cynthia
2013-01-01
Context: Sports specialization is intense training in 1 sport while excluding others. Sports specialization in early to middle childhood has become increasingly common. While most experts agree that some degree of sports specialization is necessary to achieve elite levels, there is some debate as to whether such intense practice time must begin during early childhood and to the exclusion of other sports to maximize potential for success. There is a concern that sports specialization before adolescence may be deleterious to a young athlete. Evidence Acquisition: PubMed and OVID were searched for English-language articles from 1990 to 2011 discussing sports specialization, expert athletes, or elite versus novice athletes, including original research articles, consensus opinions, and position statements. Results: For most sports, there is no evidence that intense training and specialization before puberty are necessary to achieve elite status. Risks of early sports specialization include higher rates of injury, increased psychological stress, and quitting sports at a young age. Sports specialization occurs along a continuum. Survey tools are being developed to identify where athletes fall along the spectrum of specialization. Conclusion: Some degree of sports specialization is necessary to develop elite-level skill development. However, for most sports, such intense training in a single sport to the exclusion of others should be delayed until late adolescence to optimize success while minimizing injury, psychological stress, and burnout. PMID:24427397
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The Evaluation of Motivation and Sport Education Relationship
Bas, Mustafa
2016-01-01
Motivating and enjoyable experience are the factors that physical education teachers encounter with them. One of the educational models of sport is sport education that is a result of features reliable sport simulation that causes to positive motivational sport experiences. Participants were 120 (male = 100, female = 20). The number of classes…
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Directory of Open Access Journals (Sweden)
Stevo Popović
2011-08-01
Full Text Available This research was aimed at gaining relevant knowledge about the attitudes toward sport advertising among the question how often consumers participate in sports activities The sample included 433 respondents, divided into six subsample groups: consumers who do not purchase sport goods at all, then consumers who purchase sport goods less than ones a month, next 1–3 a month, 4–6 a month, 7–9 a month, as well as consumers who purchase sport goods more than 10 times a months. The results of the measuring were analyzed by multivariate analysis (MANOVA and univariate analysis (ANOVA and Post Hoc test. Based on the results it was concluded that significant differences occur at multivariate level, as well as between all three variables at a significance level of p=.05. It is interesting to highlight that it was found that the significant differences showed up between the consumers who do not purchase sport goods at all with negative attitudes and consumers who purchase sport goods less than ones a months and more with positive attitudes toward sport advertising
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Continuous Reinforced Concrete Beams
DEFF Research Database (Denmark)
Hoang, Cao Linh; Nielsen, Mogens Peter
1996-01-01
This report deals with stress and stiffness estimates of continuous reinforced concrete beams with different stiffnesses for negative and positive moments e.g. corresponding to different reinforcement areas in top and bottom. Such conditions are often met in practice.The moment distribution...
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Imaging of Sports-related Injuries of the Lower Extremity in Pediatric Patients.
O'Dell, M Cody; Jaramillo, Diego; Bancroft, Laura; Varich, Laura; Logsdon, Gregory; Servaes, Sabah
2016-10-01
With increasing participation and intensity of training in youth sports in the United States, the incidence of sports-related injuries is increasing, and the types of injuries are shifting. In this article, the authors review sports injuries of the lower extremity, including both acute and overuse injuries, that are common in or specific to the pediatric population. Common traumatic injuries that occur in individuals of all ages (eg, tears of the acetabular labrum and anterior cruciate ligament) are not addressed, although these occur routinely in pediatric sports. However, some injuries that occur almost exclusively in high-level athletes (eg, athletic pubalgia) are reviewed to increase awareness and understanding of these entities among pediatric radiologists who may not be familiar with them and thus may not look for them. Injuries are described according to their location (ie, hip, knee, or foot and ankle) and pathologic process (eg, apophysitis, osteochondritis dissecans). Examples of abnormalities and normal variants of the anatomy that are often misdiagnosed are provided. The injuries reviewed represent a common and growing subset of pathologic processes about which all pediatric and musculoskeletal radiologists should be knowledgeable. Understanding physeal injury is especially important because missed diagnoses can lead to premature physeal closure and osteoarthritis. © RSNA, 2016.
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McGee, Ciara E; Trigwell, Joanne; Fairclough, Stuart J; Murphy, Rebecca C; Porcellato, Lorna; Ussher, Michael; Foweather, Lawrence
2016-05-26
Preventing children from smoking is a public health priority. This study evaluated the effects of a sport-for-health smoking prevention programme (SmokeFree Sports) on smoking-related intentions and cognitions among primary school children from deprived communities. A non-randomised-controlled trial targeted 9-10 year old children from Merseyside, North-West England. 32 primary schools received a programme of sport-for-health activities over 7 months; 11 comparison schools followed usual routines. Data were collected pre-intervention (T0), and at 8 months (T1) and one year post-intervention (T2). Smoking-related intentions and cognitions were assessed using an online questionnaire. Intervention effects were analysed using multi-level modelling (school, student), adjusted for baseline values and potential confounders. Mixed-sex focus groups (n = 18) were conducted at T1. 961 children completed all assessments and were included in the final analyses. There were no significant differences between the two study groups for non-smoking intentions (T1: β = 0.02, 95 % CI = -0.08-0.12; T2: β = 0.08, 95 % CI = -0.02-0.17) or for cigarette refusal self-efficacy (T1: β = 0.28, 95 % CI = -0.11-0.67; T2: β = 0.23, 95 % CI = -0.07-0.52). At T1 there was a positive intervention effect for cigarette refusal self-efficacy in girls (β = 0.72, 95 % CI = 0.21-1.23). Intervention participants were more likely to 'definitely' believe that: 'it is not safe to smoke for a year or two as long as you quit after that' (RR = 1.19, 95 % CI = 1.07-1.33), 'it is difficult to quit smoking once started' (RR = 1.56, 95 % CI = 1.38-1.76), 'smoke from other peoples' cigarettes is harmful' (RR = 1.19, 95 % CI = 1.20-2.08), 'smoking affects sports performance' (RR = 1.73, 95 % CI = 1.59-1.88) and 'smoking makes 'no difference' to weight' (RR = 2.13, 95 % CI = 1.86-2.44). At T2, significant between
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Sports-related brain injuries: connecting pathology to diagnosis.
Pan, James; Connolly, Ian D; Dangelmajer, Sean; Kintzing, James; Ho, Allen L; Grant, Gerald
2016-04-01
Brain injuries are becoming increasingly common in athletes and represent an important diagnostic challenge. Early detection and management of brain injuries in sports are of utmost importance in preventing chronic neurological and psychiatric decline. These types of injuries incurred during sports are referred to as mild traumatic brain injuries, which represent a heterogeneous spectrum of disease. The most dramatic manifestation of chronic mild traumatic brain injuries is termed chronic traumatic encephalopathy, which is associated with profound neuropsychiatric deficits. Because chronic traumatic encephalopathy can only be diagnosed by postmortem examination, new diagnostic methodologies are needed for early detection and amelioration of disease burden. This review examines the pathology driving changes in athletes participating in high-impact sports and how this understanding can lead to innovations in neuroimaging and biomarker discovery.
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Musculoskeletal pains in relation to different sport and exercise activities in youth.
Auvinen, Juha P; Tammelin, Tuija H; Taimela, Simo P; Zitting, Paavo J; Mutanen, Pertti O A; Karppinen, Jaro I
2008-11-01
We examined the associations between participation in different sports and exercise activities and neck, shoulder, and low back pains in adolescents. This population-based study included the members of the Northern Finland Birth Cohort 1986, who, at the age of 15 to 16 yr, completed a questionnaire including items about their musculoskeletal pains and participation in various sport and exercise activities (N = 6945). Logistic regression analysis was used to evaluate how musculoskeletal pains are associated a) with participation in a certain type of sport or exercise activity and b) with the clusters formed by latent class analysis (LCA) according to the adolescents' profiles of participation in different sport and exercise activities. Participation in certain sports showed some direct and inverse associations with musculoskeletal pains when adjusted for participation in other sports and for the amount of physical activity. However, after grouping the individuals into clusters by their participation in different sports, these associations vanished. Only the cluster characterized by boys' active participation in several sports (i.e., ice hockey, cycling, ice-skating, soccer, floorball, rinkball/bandy, swimming, roller-skating/skateboarding, Finnish baseball) had lower prevalence of neck pain compared with the physically inactive group. Physically active adolescents usually engage in several different sport and exercise activities, which make associations between single sports and musculoskeletal pains inconsequential in the general population of adolescents. Participation in several sports seemed to protect from harmful effects of a single risk sport. However, this finding cannot be generalized to adolescent elite athletes who are often involved in intense training for a single sport.
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Weaver, Cameron C; Martens, Matthew P; Cadigan, Jennifer M; Takamatsu, Stephanie K; Treloar, Hayley R; Pedersen, Eric R
2013-12-01
Intercollegiate athletes report greater alcohol consumption and more alcohol-related problems than their non-athlete peers. Although college athletes share many of the same problems faced by non-athletes, there are some consequences that are unique to athletes. Studies have demonstrated that alcohol negatively affects athletic performance including increased dehydration, impeded muscle recovery, and increased risk for injury. Beyond risk factors for alcohol misuse that may affect college students in general, research has begun to examine risk factors that are unique to collegiate athletes. For example, research has found that off-season status, the leadership role, and athlete-specific drinking motives are associated with increased alcohol use. Given these findings, it is possible that other athlete-specific variables influence alcohol misuse. One such variable may be sport achievement orientation. The purpose of the current study was to examine the relationship between sport achievement orientation and alcohol outcomes. Given previous research regarding seasonal status and gender, these variables were examined as moderators. Varsity athletes (n=263) completed the Sport Orientation Questionnaire, which assesses sport-related achievement orientation on three scales (Competitiveness, Win Orientation, and Goal Orientation). In addition, participants completed measures of alcohol use and alcohol-related problems. Results indicated that Competitiveness, Win Orientation, and Goal Orientation were all significantly associated with alcohol use, but not alcohol-related problems. Moreover, these relationships were moderated by seasonal status and gender. These interactions, clinical implications, and limitations are discussed. © 2013.
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FUNCTION of MANAGEMENT IN SPORT
Directory of Open Access Journals (Sweden)
Srećko Novaković
2011-03-01
Full Text Available In the sport management coordination represents the basic deposit of management, and terms through numerous activities. Brother-in-law activity in sport has the specific management so speak about the management of sport event, management of sports facilities, management of management to the human activities, financial management in sport etc. The sportively management has presumed the specific management related to sports activities whose basic task of coordinations of sports activities. Management of sport organisations have been confided sport managers of special profile which differs towards the type of sport, rank of contest etc. The sport managers could utter survived the statement that in sport have not been educated special diameters manager, besides sport coaches. Specifically, in the role of manager in sport prevails almost all diameters of professional in professional or the volunteer relationship.
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PERFORMANCE ASSESSMENT FOR FIELD SPORTS
Directory of Open Access Journals (Sweden)
Christopher Carling
2009-03-01
Full Text Available DESCRIPTION The book covers the various sport science assessment procedures for sports such as soccer, rugby, field hockey and lacrosse. It provides detailed and clear information about laboratory and field-based methods that can be used to assess and improve both individual and team performance. PURPOSE The book aims to provide a contemporary reference tool for selection of appropriate testing procedures for sports across a range of scientific disciplines. FEATURES The text begins with a chapter on the rationales for performance assessments, the use of technology and the necessity for procedures to conform to scientific rigor, explaining the importance of test criteria. This chapter ends by emphasizing the importance of the feedback process and vital considerations for the practitioner when interpreting the data, selecting which information is most important and how to deliver this back to the athlete or coach in order to deliver a positive performance outcome. The next two chapters focus on psychological assessments with respect to skill acquisition, retention and execution providing a variety of qualitative and quantitative options, underpinned with scientific theory and contextualized in order to improve the understanding of the application of these methods to improve anticipation and decision-making to enhance game intelligence.Chapter 4 provides coverage of match analysis techniques in order to make assessments of technical, tactical and physical performances. Readers learn about a series of methodologies ranging from simplistic pen and paper options through to sophisticated technological systems with some exemplar data also provided. Chapters 5 through 7 cover the physiological based assessments, including aerobic, anaerobic and anthropometric procedures. Each chapter delivers a theoretical opening section before progressing to various assessment options and the authors make great efforts to relate to sport-specific settings. The final
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Kramer, D.; Stronks, K.; Maas, J.; Wingen, M.; Kunst, A.E.
2015-01-01
Studies on the relation between the social neighborhood environment and sports participation have produced inconsistent results. Use of generic sports outcomes may have obscured associations only apparent for sports at certain locations. This study aims to assess the association between the social
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Kramer, D.; Stronks, K.; Maas, J.; Wingen, M.; Kunst, A. E.
2015-01-01
Studies on the relation between the social neighborhood environment and sports participation have produced inconsistent results. Use of generic sports outcomes may have obscured associations only apparent for sports at certain locations. This study aims to assess the association between the social
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Sports-Related Sudden Cardiac Injury or Death.
Greene, Elizabeth Anne; Punnoose, Ann
2015-12-01
Symptoms such as syncope and chest pain, especially if they are accompanied by palpitations or occur with exercise in any combination, require cardiac evaluation before adolescent athletes are allowed to return to the sports field. Some life-threatening conditions will likely be associated with a family history of HCM or LQTS, but the family history may not be discovered at the first medical visit. A family history of CPVT, for example, is hard to elicit unless this diagnosis has already been established in an affected family member. The keys will be the timing of symptoms and the documentation of arrhythmia with exercise. The ECG at baseline in CPVT may be deceptively normal. Hypertrophic cardiomyopathy is progressive, so evaluation during early childhood may be negative. Long QT syndrome may not always result in an abnormal ECG, even in genetically positive individuals. A high index of suspicion is needed to make these diagnoses, especially if the family history is not available.
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Huestis, Marilyn A.; Mazzoni, Irene; Rabin, Olivier
2013-01-01
Since 2004, when the World Anti-Doping Agency assumed the responsi-bility for establishing and maintaining the list of prohibited substances and methods in sport (i.e. the Prohibited List), cannabinoids have been prohibited in all sports during competition. The basis for this prohibition can be found in the World Anti-Doping Code, which defines the three criteria used to consider banning a substance. In this context, we discuss the potential of can-nabis to enhance sports performance, the risk it poses to the athlete’s health and its violation of the spirit of sport. Although these compounds are prohibited in-competition only, we explain why the pharmacokinetics of their main psychoactive compound, Δ9-tetrahydrocannabinol, may complicate the results management of adverse analytical findings. Passive inhalation does not appear to be a plausible explanation for a positive test. Although the prohibition of cannabinoids in sports is one of the most controversial issues in anti-doping, in this review we stress the reasons behind this prohibition, with strong emphasis on the evolving knowledge of cannabinoid pharmacology. PMID:21985215
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Fischer, Benjamin; Wegener, Detlef
2018-04-04
Non-human primates constitute an indispensable model system for studying higher brain func-tions at the neurophysiological level. Studies involving these animals elucidated the neuronal mechanisms of various cognitive and executive functions, such as visual attention, working memory, and decision-making. Positive Reinforcement Training (PRT) constitutes the gold standard for training animals on the cognitive tasks employed in these studies. In the laboratory, PRT is usually based on applying a liquid reward as the reinforcer to strengthen the desired be-havior, and absence of the reward if the animal's response was wrong. By trial-and-error, the monkey may adopt its behavior and successfully reduces the number of error trials, and eventu-ally learns even very sophisticated tasks. However, progress and success of the training strongly depend on reasonable error rates. If errors get too frequent, they may cause a drop in the ani-mal's motivation to cooperate, or its adaptation to high error rates and poor overall perfor-mance. We here introduce an alternative training regime to minimize errors and base the critical information for learning on graded rewarding. For every new task rule, the feedback to the ani-mal is provided by different amounts of reward to distinguish the desired, optimal behavior from less optimally behavior. We applied this regime in different situations during training of visual attention tasks, and analyzed behavioral performance and reaction times to evaluate its effec-tiveness. For both simple and complex behaviors, graded rewarding was found to constitute a powerful technique allowing for effective training without trade-off in accessible task difficulty or task performance.
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DEFF Research Database (Denmark)
Christensen, Mette Krogh
dealing with anonymous individuals, whose anonymity results from the confidentiality requirements of a social scientific research methodology, to those leaning more towards the literary-historical traditions of 'conventional' biographical writing. However, these examples are polar extremes and none...... in the academis world of sport studies. It does not set out to be a methodological treatise but through the writing of lives in sports does raise questions of method. Each essay in this collection deals with problems of writing sports-people's lives. These essays could be said to fall along a spectrum from those......Writing lives in sport is a book of stories about sports-persons. The people concerned include sports stars, sports people who are not quite so famous, and relatively unknown physical education teachers and sports scientists.Writing lives in sport raises questions about writing biographies...
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DEFF Research Database (Denmark)
Quinto Romani, Annette
2018-01-01
In a Danish context, elite sports classes have been moved into the educational system. However, moving the selection of young sports talents into state schools conflicts with the spirit of the equality concept on which the Danish educational system is built. In the light of this debate, it is rel......In a Danish context, elite sports classes have been moved into the educational system. However, moving the selection of young sports talents into state schools conflicts with the spirit of the equality concept on which the Danish educational system is built. In the light of this debate......, it is relevant to address whether demanding training has a harmful or beneficial impact on pupils’ social life. Using a longitudinal dataset of 1,095 Danish pupils in the Municipality of Aalborg, this paper attempts to estimate the impact of sports participation on peer relations, considering different levels...
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Developmental Benefits of Extracurricular Sports Participation Among Brazilian Youth.
Reverdito, Riller S; Galatti, Larissa R; Carvalho, Humberto M; Scaglia, Alcides J; Côté, Jean; Gonçalves, Carlos E; Paes, Roberto R
2017-10-01
Youth sporting activities have been explored as a way to impact positive personal transformation and development, glaringly demonstrated by world-wide investments in public policies, programs, and projects. We studied positive effects of participation in sports on the developmental assets of 614 adolescents (13.1 ± 1.7 years) actively engaged in extracurricular sport programs targeted at socially disadvantaged youths, from five municipalities across five states of the southern, south-eastern and north-eastern regions of Brazil. Participants responded to a developmental assets questionnaire designed to capture sociodemographic and human development data. Multilevel logistic regression was used to explore associations between years of participation in sport and human development indicators, controlling for age and sex. Our results showed that the quality of the young people's support network and duration of program participation positively influenced sport participation, which, in turn, was associated with willingness to learn. A strong association was also observed between sport participation and developmental assets. Thus, we offer new evidence of a relationship between positive development and environmental factors in which individual and contextual forces can be aligned, and we provide new reference data for developing countries.
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Ulnar nerve lesion at the wrist and sport: A report of 8 cases compared with 45 non-sport cases.
Seror, P
2015-04-01
Reporting clinical and electrodiagnostic characteristics of sport-related ulnar neuropathies at the wrist. Eight sport-related and 45 non-sport-related cases from 53 ulnar neuropathies at the wrist cases over 14 years. Sport-related ulnar neuropathies at the wrist cases were due to cycling (5 cases), kayaking (2 cases), and big-game fishing (1 case). No patient had sensory complaints in ulnar digits, and all had motor impairment. Conduction across the wrist with recording on the first dorsal interosseous muscle was impaired in all cases, with conduction block in 5. Two cyclists showed bilateral ulnar neuropathies at the wrist. All cases recovered within 2 to 6 months with sport discontinuation. Distal lesions of the deep motor branch were more frequent in sport- than non-sport-related cases. The 8 sport-related ulnar neuropathies at the wrist cases involved the deep motor branch. Conduction study to the first dorsal interosseous muscle across the wrist is the key to electrodiagnostics. Bilateral cases in cyclists does not require wrist imaging. Copyright © 2015 Elsevier Masson SAS. All rights reserved.
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'Wild league' in water polo: An exploration of recreational sports event visit motivation
Directory of Open Access Journals (Sweden)
Sindik Joško
2016-01-01
Full Text Available Scope of this study was to identify motivational factors related to specific recreational sport event: 'Wild league' in water polo, which takes place in Dubrovnik, have very long tradition. First goal of the study is to determine the relationship between motivational factors related to this event, as well as with socio-demographic variables. Second goal is to determine the differences in motivational factors, according to several independent variables, mainly related to the previous experiences with sports and touristic destination. The cross-sectional study is conducted. The sample of 125 participants was examined, using the Questionnaire on sports event. All participants were Croatian citizens, excluding those who are born, and currently live in Dubrovnik. Major sports tourism motives of the potential tourists in this sporting event, were obtained. In general, the importance of the benefits of sports and tourist destination prevailed, as compared with their limitations, which appeared as an important factor only in participants who didn't visited Dubrovnik yet. At the participants, pull factors, i.e. advanced sports and travel motives slightly dominated over push motives, but statistically significant only in females, who expressed more sophisticated pulling tourist motives, such as the acquisition of knowledge about the destination. Correlations indicate that previous interest in sport, particularly in water polo and Wild League, are moderate positively associated with pushing motives. Moreover, previous recreationally engaging in sports, as well as destination-related origin, appeared as the important factors for having more emphasized pull motives for visiting this sport event. Level of the education did not appear as important factor in differentiating main type of motives in target population. Results provide initial information about the possibility of profiling potential tourists who could be motivated to visit the destination by this
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Haran, Harini P; Bressan, Silvia; Oakley, Ed; Davis, Gavin A; Anderson, Vicki; Babl, Franz E
2016-03-01
On-field management and return-to-play guidelines aim to ensure the identification and appropriate management of the concussed athlete. Compliance with current guidelines in many settings is unknown. We assessed whether key components of current concussion guidelines are being followed in child athletes. Prospective observational study. Data were collected from children (5-18 years) presenting to a paediatric emergency department with sport-related concussion via researcher-administered surveys in the emergency department and during a follow up phone call. On hospital discharge all patients received a return to sports fact sheet based on the International Concussion in Sports Group. Ninety-three had sustained a concussion (mean age 12.7 (±0.27) years, 83% male). Sports played included Australian Football (47%), soccer (12%), rugby (9%) basketball (8%), other (25%). 82% participated in organised sports. Concussive signs or symptoms included loss of consciousness (41%), disorientation (36%), vomiting (23%), amnesia (30%), headache (60%). For concussive injury in organised sports (n=76), overall 42% were not managed according to recommended guidelines: 19% were not immediately removed from play, 29% were allowed to return to play on the same day and 27% were not assessed by qualified personnel. 93% of parents and 96% of patients were unaware of concussion or return-to-play guidelines from their organisations. Overall, 72% were compliant with provided return-to-play guidelines. Many children with sports related-concussion are not formally assessed on-field and continue to play. On-field concussion management and return to play practices are often suboptimal. Awareness and education of coaches, teachers, parents and children need to be improved. Copyright © 2015 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.
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Seifert, Tad
2014-09-01
Sports- and exercise-related headaches are not unusual. Despite their frequent occurrence in this context, there are little epidemiologic data concerning sports-related headache. The recent attention of concussive injuries and associated post-traumatic headache has renewed interest in the study of those headaches occurring after head trauma; however, any primary headache type can also occur in the setting of contact and/or collision sports. The nonspecific nature of headaches provides unique challenges to clinicians encountering this complaint. It is, therefore, imperative that physicians treating athletes are able to distinguish the various headache types and presentations often seen in this population.
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Sport and APA: proces of possible diffusion
Directory of Open Access Journals (Sweden)
Hana Válková
2011-03-01
Full Text Available Relation between Adapted Physical Activity (APA are described in the article. Recent sport professions as so as professions related to sports are formulated. "Coach" profession is defined with more details, the term "sport of persons with disability" is explained, too. On the bases of personal experience the APA domain which every coach can be touched are presented. Events which recent coaches, sports clubs in Czech Republic participated in are added. The basic questions of EUSAPA project are answered: regular sport and APA are blended together. Diffusion of sport and APA can become good platform for inclusion in life span context. Coaches should be informed about basic principles of APA according the level of connection (humanitarian domain - coaches in sports of disabled, the type of sport (relation to general sport and performance level (recreation - top competitive. The topic APA should be included on adequate level in education courses of coaches. The practice in sport activities of people with disability has to be involved.
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Wearable Performance Devices in Sports Medicine.
Li, Ryan T; Kling, Scott R; Salata, Michael J; Cupp, Sean A; Sheehan, Joseph; Voos, James E
2016-01-01
Wearable performance devices and sensors are becoming more readily available to the general population and athletic teams. Advances in technology have allowed individual endurance athletes, sports teams, and physicians to monitor functional movements, workloads, and biometric markers to maximize performance and minimize injury. Movement sensors include pedometers, accelerometers/gyroscopes, and global positioning satellite (GPS) devices. Physiologic sensors include heart rate monitors, sleep monitors, temperature sensors, and integrated sensors. The purpose of this review is to familiarize health care professionals and team physicians with the various available types of wearable sensors, discuss their current utilization, and present future applications in sports medicine. Data were obtained from peer-reviewed literature through a search of the PubMed database. Included studies searched development, outcomes, and validation of wearable performance devices such as GPS, accelerometers, and physiologic monitors in sports. Clinical review. Level 4. Wearable sensors provide a method of monitoring real-time physiologic and movement parameters during training and competitive sports. These parameters can be used to detect position-specific patterns in movement, design more efficient sports-specific training programs for performance optimization, and screen for potential causes of injury. More recent advances in movement sensors have improved accuracy in detecting high-acceleration movements during competitive sports. Wearable devices are valuable instruments for the improvement of sports performance. Evidence for use of these devices in professional sports is still limited. Future developments are needed to establish training protocols using data from wearable devices. © 2015 The Author(s).
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The influence of attitudes toward physical activity and sports
Directory of Open Access Journals (Sweden)
Ana Tereza Araújo
2015-12-01
Full Text Available Abstract Attitude is one of the most important predictor variables in relation to behavioral intentions regarding physical activity. Thus, this study aims to determine the influence of attitudes towards physical activity. The study comprised a sample of 1129 individuals (507 men and 622 women age between 12 and 58 years ( = 18 sd = 4.03. To collect the data, the Scale of Attitudes Towards Physical Activity and Sports (Dosil, 2002 was based on the Portuguese version (Cid, Alves, & Dosil, 2008. The results show that attitudes towards physical activity and sports are more positive in younger male individuals, who do not attend higher education, who regularly engage in physical activity and whose parents engage in physical/sports activity themselves.
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Interlanguage comparison of sport discourse (on the material of sport analytic article
Directory of Open Access Journals (Sweden)
Gavryushina Ekaterina Alexandrovna
2016-06-01
Full Text Available The article is devoted to the study of cultural and mental specificity of language units in the sport communication. The study was conducted on the material of English, Russian and German analytical articles, thematically related to tennis. Using the technique of cross-language comparison it is revealed significant characteristic parameters of sports discourse. The proposed comparative procedure consists in three stages of analysis: linguistic, cognitive-communicative and linguistic-cultural. During the analysis at each step there were identified certain criteria specific to the sport discourse in three linguasocieties. Sport communication reflects not only the specificity and originality of the language, but also the traditions, history, mentality, culture, and behavior patterns of modern professional sport community. Comparative study of sport discourse reveals the cultural, linguistic and cognitive features of sublanguage sports and allows to get a common view of the structure of sport analytical articles.
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Kwan, Matthew; Bobko, Sarah; Faulkner, Guy; Donnelly, Peter; Cairney, John
2014-03-01
Sport participation can play an important and positive role in the health and development of children and youth. One area that has recently been receiving greater attention is the role that sport participation might play in preventing drug and alcohol use among youth. The current study is a systematic review of 17 longitudinal studies examining the relationship between sport participation and alcohol and drug use among adolescents. Results indicated that sport participation is associated with alcohol use, with 82% of the included studies (14/17) showing a significant positive relationship. Sport participation, however, appears to be related to reduced illicit drug use, especially use of non-cannabis related drugs. Eighty percent of the studies found sport participation associated with decreased illicit drug use, while 50% of the studies found negative association between sport participation and marijuana use. Further investigation revealed that participation in sports reduced the risk of overall illicit drug use, but particularly during high school; suggesting that this may be a critical period to reduce or prevent the use of drugs through sport. Future research must better understand what conditions are necessary for sport participation to have beneficial outcomes in terms of preventing alcohol and/or illicit drug use. This has been absent in the extent literature and will be central to intervention efforts in this area. Copyright © 2013 Elsevier Ltd. All rights reserved.
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Brain network response underlying decisions about abstract reinforcers.
Mills-Finnerty, Colleen; Hanson, Catherine; Hanson, Stephen Jose
2014-12-01
Decision making studies typically use tasks that involve concrete action-outcome contingencies, in which subjects do something and get something. No studies have addressed decision making involving abstract reinforcers, where there are no action-outcome contingencies and choices are entirely hypothetical. The present study examines these kinds of choices, as well as whether the same biases that exist for concrete reinforcer decisions, specifically framing effects, also apply during abstract reinforcer decisions. We use both General Linear Model as well as Bayes network connectivity analysis using the Independent Multi-sample Greedy Equivalence Search (IMaGES) algorithm to examine network response underlying choices for abstract reinforcers under positive and negative framing. We find for the first time that abstract reinforcer decisions activate the same network of brain regions as concrete reinforcer decisions, including the striatum, insula, anterior cingulate, and VMPFC, results that are further supported via comparison to a meta-analysis of decision making studies. Positive and negative framing activated different parts of this network, with stronger activation in VMPFC during negative framing and in DLPFC during positive, suggesting different decision making pathways depending on frame. These results were further clarified using connectivity analysis, which revealed stronger connections between anterior cingulate, insula, and accumbens during negative framing compared to positive. Taken together, these results suggest that not only do abstract reinforcer decisions rely on the same brain substrates as concrete reinforcers, but that the response underlying framing effects on abstract reinforcers also resemble those for concrete reinforcers, specifically increased limbic system connectivity during negative frames. Copyright © 2014 Elsevier Inc. All rights reserved.
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Sorkkila, M; Aunola, K; Salmela-Aro, K; Tolvanen, A; Ryba, T V
2018-02-17
Student-athletes who strive for success in high-level sports while pursuing upper secondary education may be prone to sport and school burnout. This study examined the co-developmental dynamic of sport and school burnout in Finnish adolescent student-athletes (N time 1 = 391; N time 2 = 373) across the first year of upper secondary school using cross-lagged structural equation modeling (SEM). Furthermore, we used sport and school-related achievement goals as predictors of sport and school burnout, namely sport and school-related exhaustion, cynicism, and feelings of inadequacy. The results showed that burnout dimensions in a particular domain were substantially stable within the same domain during the first year of upper secondary school and that school-related exhaustion at the beginning of upper secondary school predicted sport-related exhaustion at the end of the school year. Mastery goals in sport and school were negatively associated with cynicism and feelings of inadequacy within the same domain. Furthermore, performance goals in school were positively associated with school-related cynicism. The results can be used by healthcare professionals for early prevention of student-athletes' burnout. © 2018 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
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Ciomaga, Bogdan
2014-01-01
The sociology of sport literature is now sufficiently broad to allow a general analysis of research patterns in this field. To facilitate the identification of these vectors of expansion, sources referenced in articles published in "Sociology of Sport Journal and Journal of Sport and Social Issues" between 2003 and 2011 are examined in…
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FACTORS AFFECTING BRAND CHOICE OF THE CONSUMERS ON SPORTS DRINKS
Directory of Open Access Journals (Sweden)
Galih Andihka
2016-09-01
Full Text Available The growth of fitness centers in Indonesia has given a very good opportunity to the sports drink industry to grow. In general, a fitness center does not only provide services of sports facilities but also sell supplements and drinks to consumers for their exercises. The type of drinks highly in demand by consumers in the fitness center is sports drinks. The objective of this study was to identify the influences of brand positioning, brand image and perceived value on brand choices of sports drink products on the consumer fitness center. This study used a quantitative approach using a survey method to the customers of the fitness centers, and the data analysis method used was PLS (Partial Least Square. The results of the PLS analysis show that the perceived value, brand image and brand positioning have positive and significant influences on brand choice of drink sports drinks of the consumers of the fitness centers in Bogor. Keywords: perceived value, brand image, brand positioning, brand choice, PLS, sport drink
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Sports physicians, ethics and antidoping governance: between assistance and negligence.
Dikic, Nenad; McNamee, Michael; Günter, Heinz; Markovic, Snezana Samardzic; Vajgic, Bojan
2013-07-01
Recent positive doping cases and a series of mistakes of medical doctors of the International Federation of Basketball have reopened the debate about the role of medical doctor in elite sport. This study shows that some sports physicians involved in recent positive doping cases are insufficiently aware of the nuances of doping regulations and, most importantly, of the list of prohibited substances. Moreover, several team doctors are shown to have exercised poor judgement in relation to these matters with the consequence that athletes are punished for doping offences on the basis of doctors' negligence. In such circumstances, athletes' rights are jeopardised by a failure of the duty of care that (sports) physicians owe their athlete patients. We argue that, with respect to the World Anti Doping Code, antidoping governance fails to define, with sufficient clarity, the role of medical doctors. There is a need for a new approach emphasising urgent educational and training of medical doctors in this domain, which should be considered prior to the revision of the next World Anti Doping Code in 2013 in order to better regulate doctor's conduct especially in relation to professional errors, whether negligent or intentional.
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Buckley, Gary I; Malouff, John M
2005-05-01
In this study, the authors evaluated the effectiveness of a video, developed for this study and using principles of cognitive learning theory, to produce positive attitudinal change toward mental health treatment. The participants were 35 men and 45 women who were randomly assigned to watch either an experimental video, which included 3 positive 1st-person accounts of psychotherapy or a control video that focused on the psychological construct of self. Pre-intervention, post-intervention, and 2-week follow-up levels of attitude toward mental health treatment were measured using the Attitude Toward Seeking Professional Help Scale (E. H. Fischer & J. L. Turner, 1970). The experimental video group showed a significantly greater increase in positive attitude than did the control group. These results support the effectiveness of using the vicarious reinforcement elements of cognitive learning theory as a basis for changing attitudes toward mental health treatment.
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Experience with dynamic reinforcement rates decreases resistance to extinction.
Craig, Andrew R; Shahan, Timothy A
2016-03-01
The ability of organisms to detect reinforcer-rate changes in choice preparations is positively related to two factors: the magnitude of the change in rate and the frequency with which rates change. Gallistel (2012) suggested similar rate-detection processes are responsible for decreases in responding during operant extinction. Although effects of magnitude of change in reinforcer rate on resistance to extinction are well known (e.g., the partial-reinforcement-extinction effect), effects of frequency of changes in rate prior to extinction are unknown. Thus, the present experiments examined whether frequency of changes in baseline reinforcer rates impacts resistance to extinction. Pigeons pecked keys for variable-interval food under conditions where reinforcer rates were stable and where they changed within and between sessions. Overall reinforcer rates between conditions were controlled. In Experiment 1, resistance to extinction was lower following exposure to dynamic reinforcement schedules than to static schedules. Experiment 2 showed that resistance to presession feeding, a disruptor that should not involve change-detection processes, was unaffected by baseline-schedule dynamics. These findings are consistent with the suggestion that change detection contributes to extinction. We discuss implications of change-detection processes for extinction of simple and discriminated operant behavior and relate these processes to the behavioral-momentum based approach to understanding extinction. © 2016 Society for the Experimental Analysis of Behavior.
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Mind the Gap: The Layered Reconstruction of Gender in Sport Related Organizations
Claringbould, I.E.C.
2008-01-01
Most sports are structured by gender resulting in sex segregation by sport. This formal division of an activity based on gender is unique in sport, in contrast paid and volunteer work in sport are not formally segregated by gender.. Qualified men and women may engage in this work regardless of
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Current Concepts in Sports-Related Concussion.
Chatterjee, Dipal; Frumberg, David B; Mulchandani, Neil B; Eldib, Ahmed M; Xavier, Fred; Barbash, Scott E; Saha, Subrata; Urban, William P
2015-01-01
Traumatic brain injury, specifically concussion, is prevalent in contact sports. In the United States (US) each year, 170 million adults participate in physical recreational activities, and 38 million children and adolescents participate in organized sports. The Centers for Disease Control estimate that in this group ~1.6 to 3.8 million concussions occur annually. Recent class-action lawsuits in the US filed by professional athletes against their respective leagues allege negligence in protecting them from concussions, and this has contributed to the attention received in the popular media. In response, concussion-related publications have increased exponentially during the past several years. Recent studies have challenged earlier assumptions that the effects of concussion are transient. Stronger links between concussion and neurodegenerative processes such as Alzheimer's disease-like conditions, depression, and heightened risk for suicide are being elucidated. In this article, we explore the current knowledge on concussion, including pathophysiology, management, and long-term effects. We conclude that more evidence-based results regarding guidelines for diagnosis, treatment, and return to play (RTP) are needed and should be the focus of future investigations. Attributing the etiology of certain neurodegenerative conditions to a history of concussion has been suggested in the current literature, but additional quantitative data regarding the pathophysiology and causality are needed as well. Bioengineers can have an important role in measuring the dynamic forces encountered during head impacts and their effects on the brain. These results can be effective in designing better helmets as well as improved playing surfaces to reduce the impact of such injuries. At this time, we believe that groups of people with heightened risk for concussion should be followed closely during longer periods of time and compared to matched controls. Such long-term studies are urgently
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Ponnusamy, Vellapandian; Grove, J Robert
2014-09-01
Factors relevant to the working alliance between athletes and sport psychology consultants were investigated in a sample of elite Malaysian athletes (n = 217). The athletes represented a variety of team and individual sports, and they provided information about the perceived importance of seven consultant characteristics/behaviors as well as seven program delivery options. At a full-sample level, general preferences were expressed for consultants to lead a physically active lifestyle, regularly attend training sessions and competitions, and have prior experience as an athlete or coach. General preferences were also expressed for program content to be determined by the coach or consultant, and for regular, small doses of mental skills training to be delivered in a face-to-face context throughout the year. At a sub-group level, team sport athletes had stronger preferences than individual sport athletes for program delivery on a group/team basis, while individual sport athletes had stronger preferences than team sport athletes for having a role in determining program content. Findings are discussed in relation to dominant value themes within Malaysian society and the reinforcement of these themes within specific sport subcultures. Key pointsConsultant characteristics and program delivery methods have an impact on the effectiveness of sport psychology services.Preferred consultant characteristics and preferred methods of delivery may be affected by cultural and subcultural values.Elite Malaysian athletes prefer consultants to lead a physically active lifestyle; to regularly attend training/competition; and to have prior experience as an athlete or coach.Elite Malaysian athletes also prefer that the coach or consultant determine program content, and that mental skills training take place in a face-to-face context throughout the year.
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Ponnusamy, Vellapandian; Grove, J. Robert
2014-01-01
Factors relevant to the working alliance between athletes and sport psychology consultants were investigated in a sample of elite Malaysian athletes (n = 217). The athletes represented a variety of team and individual sports, and they provided information about the perceived importance of seven consultant characteristics/behaviors as well as seven program delivery options. At a full-sample level, general preferences were expressed for consultants to lead a physically active lifestyle, regularly attend training sessions and competitions, and have prior experience as an athlete or coach. General preferences were also expressed for program content to be determined by the coach or consultant, and for regular, small doses of mental skills training to be delivered in a face-to-face context throughout the year. At a sub-group level, team sport athletes had stronger preferences than individual sport athletes for program delivery on a group/team basis, while individual sport athletes had stronger preferences than team sport athletes for having a role in determining program content. Findings are discussed in relation to dominant value themes within Malaysian society and the reinforcement of these themes within specific sport subcultures. Key points Consultant characteristics and program delivery methods have an impact on the effectiveness of sport psychology services. Preferred consultant characteristics and preferred methods of delivery may be affected by cultural and subcultural values. Elite Malaysian athletes prefer consultants to lead a physically active lifestyle; to regularly attend training/competition; and to have prior experience as an athlete or coach. Elite Malaysian athletes also prefer that the coach or consultant determine program content, and that mental skills training take place in a face-to-face context throughout the year. PMID:25177193
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THE SPORTS GOODS MARKET IN THE EU
Maja Štrbac
2011-01-01
There are a number of ways to divide this market sector, but broadly speaking the sports market essentially relates to products used in the pursuit of active team or individual sports. This would include team sports, equipment for fitness, gym, snow sports, equipment for water sports, golf, tennis and skating. There is also the „outdoor“ market. This would include camping goods, fishing and horse sports. There are a number of inter- related trends, which impact on the future development of th...
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Contemporary dimensions of sports sponsorship
Directory of Open Access Journals (Sweden)
Iulian DUMITRU
2017-03-01
Full Text Available Marketing developed close relation with sponsorship since the beginnings of the industrial era of sports. The relation has transformed in a stable relation, the two forces – the sponsor and the sponsored – transforming into two companions of journey. The effort undertaken in this work was focused on analyzing the modern aspects of the partnership generated through sports sponsorship.The current issue and sport sponsorship has come a long way since the first action of its kind until now. Based on the presentation of new concepts on the development efforts in sport sponsorship, content provides a detailed analysis of the actual specifics of this type of activity. Analysis of influence vectors sponsorship process gives us a picture of the forces that can act on this. At the end of our research we focused attention on elements that empowers sports portfolio in terms of corporate interest, the potentiation commercial message and image association. This technique of promotional community for and through sports is maybe the one that manifests the most “laic” status among the promotional forms. This epithet implies a metaphorical approach given by the possibility of accomplishing some objectives that can have some more obvious “corporality” than in the case of the other forms of promotion used in the sports industry. Sports sponsorship has been an early ally of sports, and has remained a basic communicational technique. This fact is due to some determination in double sense: on the one hand, sport has adapted permanently to the dynamics of the range of sponsorship techniques and, on the other hand, the sponsorship tried to use the chameleon-like offer of the sports potential.
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Violence in youth sports: hazing, brawling and foul play.
Fields, S K; Collins, C L; Comstock, R D
2010-01-01
By separating hazing, brawling, and foul play and failing to recognise that their connection to sport binds them together into a cohesive subset of sport injury and youth violence, past research has failed to show how sports-related violence is a broad example of interpersonal violence. The acceptance of violence within the sporting culture may, in part, explain why sports-related violence has not yet been widely recognised as a public health concern. This review shows that sports-related violence, including hazing, brawling and foul play, occurs among youth athletes of all ages and in a variety of different sports. The few studies to address this issue have all acknowledged the dangers of sports-related violence; however, no incident tracking method has been developed. Future research must provide accurate national estimates of the incidence of sports-related violence among youth, identify associated risk factors, evaluate preventive interventions and identify effective methods of distributing and implementing evidence-based interventions. Monitoring the magnitude and distribution of the burden of sports-related violence and building the scientific infrastructure necessary to support the development and widespread application of effective sports-related prevention interventions are essential first steps toward a reduction in the incidence of sports-related violence.
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Does Participation in Youth Sport Influence Sport and Physical Activity in Young Adulthood?
Provence, Jeremy E.
2013-01-01
The purpose of Russell and Limle's (2013) study was to determine whether youth-sport specialization and retrospective recall of youth-sport experiences were related to participants' perceptions of and participation in sport and physical activity as young adults. A significant number of participants (76 percent) reported specializing in…
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Zuckerman, Scott L; Prather, Colin T; Yengo-Kahn, Aaron M; Solomon, Gary S; Sills, Allen K; Bonfield, Christopher M
2016-04-01
OBJECTIVE Arachnoid cysts (ACs) are congenital lesions bordered by an arachnoid membrane. Researchers have postulated that individuals with an AC demonstrate a higher rate of structural brain injury after trauma. Given the potential neurological consequences of a structural brain injury requiring neurosurgical intervention, the authors sought to perform a systematic review of sport-related structural-brain injury associated with ACs with a corresponding quantitative analysis. METHODS Titles and abstracts were searched systematically across the following databases: PubMed, Embase, CINAHL, and PsycINFO. The review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. Peer-reviewed case reports, case series, or observational studies that reported a structural brain injury due to a sport or recreational activity (hereafter referred to as sport-related) with an associated AC were included. Patients were excluded if they did not have an AC, suffered a concussion without structural brain injury, or sustained the injury during a non-sport-related activity (e.g., fall, motor vehicle collision). Descriptive statistical analysis and time to presentation data were summarized. Univariate logistic regression models to assess predictors of neurological deficit, open craniotomy, and cystoperitoneal shunt were completed. RESULTS After an initial search of 994 original articles, 52 studies were found that reported 65 cases of sport-related structural brain injury associated with an AC. The median age at presentation was 16 years (range 4-75 years). Headache was the most common presenting symptom (98%), followed by nausea and vomiting in 49%. Thirteen patients (21%) presented with a neurological deficit, most commonly hemiparesis. Open craniotomy was the most common form of treatment (49%). Bur holes and cyst fenestration were performed in 29 (45%) and 31 (48%) patients, respectively. Seven patients (11%) received
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Patel, Meeta R; Piazza, Cathleen C; Martinez, Cheryl J; Volkert, Valerie M; Christine, M Santana
2002-01-01
Consumption of solids and liquids occurs as a chain of behaviors that may include accepting, swallowing, and retaining the food or drink. In the current investigation, we evaluated the relative effectiveness of differential reinforcement of the first behavior in the chain (acceptance) versus differential reinforcement for the terminal behavior in the chain (mouth clean). Three children who had been diagnosed with a feeding disorder participated. Acceptance remained at zero when differential reinforcement contingencies were implemented for acceptance or mouth clean. Acceptance and mouth clean increased for all 3 participants once escape extinction was added to the differential reinforcement procedures, independent of whether reinforcement was provided for acceptance or for mouth clean. Maintenance was observed in 2 children when escape extinction was removed from the treatment package. The mechanism by which consumption increased is discussed in relation to positive and negative reinforcement contingencies.
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State of the Science-Ultraendurance Sports.
Hoffman, Martin D
2016-09-01
Participation in ultraendurance sports has been increasing in recent years. This participation growth has been associated with an increase in research focused on such events. While the total amount of research related to these sports remains relatively small compared with other sports, the research growth is encouraging. New sources for research funding for ultraendurance sports should advance the science. In addition to continued opportunities with observational studies, promising areas of investigation remain for experimental studies and research that uses ultraendurance-sport environments as models for studies relevant to wider populations. Insight into the breadth of research opportunities in ultraendurance sports can be gained by reviewing the abstracts published online in the International Journal of Sports Physiology and Performance from the annual Medicine & Science in Ultra-Endurance Sports Conference that took place this year in Chamonix, France.
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Collective Efficacy in Sports and Physical Activities: Perceived Emotional Synchrony and Shared Flow
Zumeta, Larraitz N.; Oriol, Xavier; Telletxea, Saioa; Amutio, Alberto; Basabe, Nekane
2016-01-01
This cross-sectional study analyzes the relationship between collective efficacy and two psychosocial processes involved in collective sport-physical activities. It argues that in-group identification and fusion with the group will affect collective efficacy (CE). A sample of 276 university students answered different scales regarding their participation in collective physical and sport activities. Multiple-mediation analyses showed that shared flow and perceived emotional synchrony mediate the relationship between in-group identification and CE, whereas the relationship between identity fusion and CE was only mediated by perceived emotional synchrony. Results suggest that both psychosocial processes explain the positive effects of in-group identification and identity fusion with the group in collective efficacy. Specifically, the role of perceived emotional synchrony in explaining the positive effects of participation in collective sport-physical activities is underlined. In sum, this study highlights the utility of collective actions and social identities to explain the psychosocial processes related to collective efficacy in physical and sports activities. Finally, practical implications are discussed. PMID:26779077
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Comparative sport injury epidemiological study on a Spanish sample of 25 different sports
Pujals, Constanza; Rubio, Víctor J.; Márquez, María Oliva; Sánchez, Ivan; Ruiz Barquín, Roberto
2016-01-01
Reconocimiento-Compartir igual Sport injury is a widely extended morbidity condition. However, epidemiological studies are far from giving a convergent outlook. Moreover, there is a lack of studies comparing relative risks of different groups of sports. The present paper is aimed to carry out a descriptive epidemiological study of sport injuries of athletes from 25 sport modalities in order to identify risk factors as well as to compare epidemiological characteristics according to the ...
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Imaging of Muscle Injuries in Sports Medicine: Sports Imaging Series
Guermazi, Ali; Roemer, Frank W.; Robinson, Philip; Tol, Johannes L.; Regatte, Ravindar R.; Crema, Michel D.
2017-01-01
In sports-related muscle injuries, the main goal of the sports medicine physician is to return the athlete to competition-balanced against the need to prevent the injury from worsening or recurring. Prognosis based on the available clinical and imaging information is crucial. Imaging is crucial to
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ECSS Position Statement 2009: Prevention of acute sports injuries
Steffen, K.; Andersen, T.E.; Krosshaug, T.; van Mechelen, W.; Myklebust, G.; Verhagen, E.A.L.M.; Bahr, R.
2010-01-01
To maximize the health benefits of sports and exercise and to minimize the direct and indirect costs associated with injuries, developing and adopting injury prevention strategies is an important goal. The aim of this ECSS consensus paper on injury prevention is to review current evidence on injury
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Dynamic Exposure to Alcohol Advertising in a Sports Context Influences Implicit Attitudes.
Zerhouni, Oulmann; Bègue, Laurent; Duke, Aaron A; Flaudias, Valentin
2016-02-01
Experimental studies investigating the impact of advertising with ecological stimuli on alcohol-related cognition are scarce. This research investigated the cognitive processes involved in learning implicit attitudes toward alcohol after incidental exposure to alcohol advertisements presented in a dynamic context. We hypothesized that incidental exposure to a specific alcohol brand would lead to heightened positive implicit attitudes toward alcohol due to a mere exposure effect. In total, 108 participants were randomly exposed to dynamic sporting events excerpts with and without advertising for a specific brand of alcohol, after completing self-reported measures of alcohol-related expectancies, alcohol consumption, and attitudes toward sport. Participants then completed a lexical decision task and an affective priming task. We showed that participants were faster to detect brand name after being exposed to advertising during a sports game, and that implicit attitudes of participants toward the brand were more positive after they were exposed to advertising, even when alcohol usage patterns were controlled for. Incidental exposure to alcohol sponsorship in sport events impacts implicit attitudes toward the advertised brand and alcohol in general. The effect of incidental advertising on implicit attitudes is also likely to be due to a mere exposure effect. However, further studies should address this point specifically. Copyright © 2016 by the Research Society on Alcoholism.
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THE SPORTS GOODS MARKET IN THE EU
Directory of Open Access Journals (Sweden)
Maja Štrbac
2011-03-01
Full Text Available There are a number of ways to divide this market sector, but broadly speaking the sports market essentially relates to products used in the pursuit of active team or individual sports. This would include team sports, equipment for fitness, gym, snow sports, equipment for water sports, golf, tennis and skating. There is also the „outdoor“ market. This would include camping goods, fishing and horse sports. There are a number of inter- related trends, which impact on the future development of this market sector
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Consequences of organizational commitment in abolished company sports team - a case study in Japan.
Honda, Yuki; Hochi, Yasuyuki; Mizuno, Motoki
2012-01-01
The purpose of this study was to show that how the abolishment of company sports team influenced the organizational commitment in employees. In this study, Three-Component Model of Organizational Commitment (Meyer and Allen, 1997) was tested with 16 employees (10 males, 6 females) of T Company in NAGANO prefecture. The average age of the participants was 44, 50 years (SD=±0.85). And from 16 employees, 3 male employees were measured on organizational commitment with interview test. According to the analysis, the relation between organizational commitment in employees and the abolishment of company sports team was not positive significant correlation. Furthermore, results of interview test did not show the relation between organizational commitment in employees and the abolishment of company sports team. However, results of interview test showed the relation with organizational commitment of players in T Company sports team. Consequently, the goal to possess a sports team in T Company was not to boost organizational commitment in employees. In addition, it is necessary to reconsider the correlation among employees engaged in T Company in the future.
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Does the Relative Age Effect Exist in Elite Sport? An Analysis of Olympic Competition
Wingfield, Kathryn McGhee
2017-01-01
Studies have concluded that youth sports programs have a bias selection process in identifying player talent. Athletes that are identified as talented are more likely to be born in the first three months after the eligibility cut-off for a program's particular age group. This is referred to as the relative age effect (RAE) and has been identified in many youth sports. However, it is not known if the RAE carries over into elite, adult competition. The purpose of this study was to determine...
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Directory of Open Access Journals (Sweden)
Ciara E. McGee
2016-05-01
Full Text Available Abstract Background Preventing children from smoking is a public health priority. This study evaluated the effects of a sport-for-health smoking prevention programme (SmokeFree Sports on smoking-related intentions and cognitions among primary school children from deprived communities. Methods A non-randomised-controlled trial targeted 9-10 year old children from Merseyside, North-West England. 32 primary schools received a programme of sport-for-health activities over 7 months; 11 comparison schools followed usual routines. Data were collected pre-intervention (T0, and at 8 months (T1 and one year post-intervention (T2. Smoking-related intentions and cognitions were assessed using an online questionnaire. Intervention effects were analysed using multi-level modelling (school, student, adjusted for baseline values and potential confounders. Mixed-sex focus groups (n = 18 were conducted at T1. Results 961 children completed all assessments and were included in the final analyses. There were no significant differences between the two study groups for non-smoking intentions (T1: β = 0.02, 95 % CI = -0.08–0.12; T2: β = 0.08, 95 % CI = -0.02–0.17 or for cigarette refusal self-efficacy (T1: β = 0.28, 95 % CI = -0.11–0.67; T2: β = 0.23, 95 % CI = -0.07–0.52. At T1 there was a positive intervention effect for cigarette refusal self-efficacy in girls (β = 0.72, 95 % CI = 0.21–1.23. Intervention participants were more likely to ‘definitely’ believe that: ‘it is not safe to smoke for a year or two as long as you quit after that’ (RR = 1.19, 95 % CI = 1.07–1.33, ‘it is difficult to quit smoking once started’ (RR = 1.56, 95 % CI = 1.38–1.76, ‘smoke from other peoples’ cigarettes is harmful’ (RR = 1.19, 95 % CI = 1.20–2.08, ‘smoking affects sports performance’ (RR = 1.73, 95 % CI = 1.59–1.88 and ‘smoking makes ‘no difference
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Salemink, Elske; Wiers, Reinout W
2014-03-01
Although studies on explicit alcohol cognitions have identified positive and negative reinforcing drinking motives that are differentially related to drinking indices, such a distinction has received less attention in studies on implicit cognitions. An alcohol-related Word-Sentence Association Task was used to assess implicit alcohol-related memory associations in positive and negative affect situations in 92 participants. Results revealed that enhancement motives were specifically associated with the endorsement of alcohol words in positive affect situations and coping motives were associated with the endorsement of alcohol words in negative affect situations. Furthermore, alcohol associations in positive affect situations predicted prospective alcohol use and number of binges, depending on levels of working memory capacity. The current findings shed more light on the underpinnings of alcohol use and suggest that implicit memory processes and working memory capacity might be important targets for intervention.
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Creating social impact with sport events
Hover, P.; Dijk, B.; Breedveld, K.; Eekeren, F.J.A. van; Slender, H.
2016-01-01
All over the world, sport events are seen as significant tools for creating positive social impact. This is understandable, as sport events have the power to attract enthusiastic participants, volunteers and to reach large audiences of visitors and followers via (social) media. Outbursts of
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Karr, Trisha M; Davidson, Denise; Bryant, Fred B; Balague, Gloria; Bohnert, Amy M
2013-03-01
Through multiple group structural equation modeling analyses, path models were used to test the predictive effects of sport type and both interpersonal (i.e., mothers' body dissatisfaction, family dynamics) and intrapersonal factors (i.e., athletic self-efficacy, body mass index [BMI]) on high school female sport participants' (N=627) body dissatisfaction. Sport types were classified as esthetic/lean (i.e., gymnastics), non-esthetic/lean (i.e., cross-country), or non-esthetic/non-lean (i.e., softball). Most participants reported low body dissatisfaction, and body dissatisfaction did not differ across sport types. Nevertheless, mothers' body dissatisfaction was positively associated with daughters' body dissatisfaction for non-esthetic/lean and non-esthetic/non-lean sport participants, and high family cohesion was predictive of body dissatisfaction among non-esthetic/lean sport participants. Across sport types, higher BMI was associated with greater body dissatisfaction, whereas greater athletic self-efficacy was associated with lower body dissatisfaction. These findings highlight the complex relationship between interpersonal and intrapersonal factors and body dissatisfaction in adolescent female sport participants. Copyright © 2012. Published by Elsevier Ltd.
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Sport Commercialism and its Impact on Sponsorship Strategy
Directory of Open Access Journals (Sweden)
Tracy Trachsler
2015-10-01
Full Text Available Sport commercialism has increased tremendously over the past twenty years. Major sporting events and organizations are at the point where most cannot survive without outside sponsor- ship revenue. This study on American attitudes towards sport sponsorships analyzes the increased sport commercialism’s impact on sport fans. Previous studies on sport sponsorship and commercialism showed that increased sport commercial- ism leads to a negative purchase intent although a younger fan may be resistant to the negative influence of over-commercial- ism. This study builds upon such research by comparing gen- der, age, type of sport (professional versus amateur and fan- avidity. Perhaps paradoxically, this research suggests there is no correlation between over-commercialism and sport interest across numerous demographic categories. This data of corporate influence on sport commercialism may provide insights for sport sponsors as they best position their brands to the sport avid consumer.
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DEFF Research Database (Denmark)
Ryba, Tatiana; Stambulova, Natalia; Si, Gangyan
2013-01-01
The multicultural landscape of contemporary sport sets a challenge to rethink sport and exercise psychology research and practice through a culturally re␣exive lens. This ISSP Position Stand provides a rigorous synthesis and engagement with existing scholarship to outline a roadmap for future work...... in the ␣eld. The shift to culturally competent sport and exercise psychology implies: (a) recognizing hidden ethnocentric philosophical assumptions permeating much of the current theory, research, and practice; (b) transitioning to professional ethics in which difference is seen as not inherent and ␣xed...... but as relational and ␣uid; and (c) focusing on meaning (instead of cause) in cross-cultural and cultural research projects, and cultural praxis work. In the paper, we ␣rst provide an overview of the concepts of cultural competence and ethics of difference. Second, we present a step-by-step approach for developing...
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Fagher, Kristina; Jacobsson, Jenny; Dahlström, Örjan; Timpka, Toomas; Lexell, Jan
2017-11-29
Sport participation is associated with a risk of sports-related injuries and illnesses, and Paralympic athletes' additional medical issues can be a challenge to health care providers and medical staff. However, few prospective studies have assessed sports-related injuries and illnesses in Paralympic sport (SRIIPS) over time. Advances in mobile phone technology and networking systems offer novel opportunities to develop innovative eHealth applications for collection of athletes' self-reports. Using eHealth applications for collection of self-reported SRIIPS is an unexplored area, and before initiation of full-scale research of SRIIPS, the feasibility and usability of such an approach needs to be ascertained. The aim of this study was to perform a 4-week pilot study and (1) evaluate the monitoring feasibility and system usability of a novel eHealth application for self-reported SRIIPS and (2) report preliminary data on SRIIPS. An eHealth application for routine collection of data from athletes was developed and adapted to Paralympic athletes. A 4-week pilot study was performed where Paralympic athletes (n=28) were asked to weekly self-report sport exposure, training load, general well-being, pain, sleep, anxiety, and possible SRIIPS. The data collection was followed by a poststudy use assessment survey. Quantitative data related to the system use (eg, completed self-reports, missing responses, and errors) were analyzed using descriptive statistics. The qualitative feasibility and usability data provided by the athletes were condensed and categorized using thematic analysis methods. The weekly response rate was 95%. The athletes were of the opinion that the eHealth application was usable and feasible but stated that it was not fully adapted to Paralympic athletes and their impairments. For example, it was difficult to understand how a new injury or illness should be identified when the impairment was involved. More survey items related to the impairments were
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2017-01-01
Background Sport participation is associated with a risk of sports-related injuries and illnesses, and Paralympic athletes’ additional medical issues can be a challenge to health care providers and medical staff. However, few prospective studies have assessed sports-related injuries and illnesses in Paralympic sport (SRIIPS) over time. Advances in mobile phone technology and networking systems offer novel opportunities to develop innovative eHealth applications for collection of athletes’ self-reports. Using eHealth applications for collection of self-reported SRIIPS is an unexplored area, and before initiation of full-scale research of SRIIPS, the feasibility and usability of such an approach needs to be ascertained. Objective The aim of this study was to perform a 4-week pilot study and (1) evaluate the monitoring feasibility and system usability of a novel eHealth application for self-reported SRIIPS and (2) report preliminary data on SRIIPS. Methods An eHealth application for routine collection of data from athletes was developed and adapted to Paralympic athletes. A 4-week pilot study was performed where Paralympic athletes (n=28) were asked to weekly self-report sport exposure, training load, general well-being, pain, sleep, anxiety, and possible SRIIPS. The data collection was followed by a poststudy use assessment survey. Quantitative data related to the system use (eg, completed self-reports, missing responses, and errors) were analyzed using descriptive statistics. The qualitative feasibility and usability data provided by the athletes were condensed and categorized using thematic analysis methods. Results The weekly response rate was 95%. The athletes were of the opinion that the eHealth application was usable and feasible but stated that it was not fully adapted to Paralympic athletes and their impairments. For example, it was difficult to understand how a new injury or illness should be identified when the impairment was involved. More survey items
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Richman, Erin L.; Shaffer, David R.
2000-01-01
Investigated links between female precollege sport participation and college self-esteem. Students surveys indicated that participation in sports positively correlated with body image, perceived physical competencies, gender identity, global self-esteem, and other psychosocial variables, thus predicting college self-esteem. In the absence of such…
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Position paper: proposal for a core curriculum for a European Sports Cardiology qualification
Heidbuchel, H.; Papadakis, M.; Panhuyzen-Goedkoop, N.M.; Carre, F.; Dugmore, D.; Mellwig, K.P.; Rasmusen, H.K.; Solberg, E.E.; Borjesson, M.; Corrado, D.; Pelliccia, A.; Sharma, S.
2013-01-01
Sports cardiology is a new and rapidly evolving subspecialty. It aims to elucidate the cardiovascular effects of regular exercise and delineate its benefits and risks, so that safe guidance can be provided to all individuals engaging in sports and/or physical activity in order to attain the maximum
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Analysis of Sport Management Literature: European Sport Management Quarterly
Directory of Open Access Journals (Sweden)
Brenda Pitts
2014-01-01
Full Text Available A profession must be built upon a sound body of knowledge in order for its professional status to be recognized and considered credible by society (Zeigler, 1987. The body of literature should also reflect and define the field (Fielding, Pitts, & Miller, 1991. To that end, examining the state of a body of literature is essential as the findings can reveal such significant information as content, trends, author collaboration, and topical gaps and disparities. The purpose of this study was to examine the European Sport Management Quarterly and its predecessor the European Journal for Sport Management. A content analysis of the journal from 1994 to 2012 was the methodology employed. Results determined that a vast majority of the papers are in four content areas – “Management and Organizational Skills in Sport”, “Sport Business in the Social Context”, “Sport Marketing”, and “Sport Economics”. Sport business industry segments as a focus of the papers stayed relatively the same over the years, although “International Sport” increased much more than any other industry segment. The gender focus of the articles was primarily male, and the authorship and editorial membership was also male-focused. The geographical dispersion of both authors and editorial review board members has broadened over time to be less European. Academics may find information from this study useful in developing strategies and lines of inquiry in research agendas. As well, editors of journals may utilize the findings to plan strategies related to addressing gaps or disparities.
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Factors that influence the reinforcing value of foods and beverages.
Temple, Jennifer L
2014-09-01
Behavioral economic principles state that as the cost of a product increases, purchasing or consumption of that product will decrease. To understand the impact of behavioral economics on ingestive behavior, our laboratory utilizes an operant behavior paradigm to measure how much work an individual will engage in to get access to foods and beverages. This task provides an objective measure of the reinforcing value. We have shown that consumption of the same high fat snack food every day for two weeks reduces its reinforcing value in lean individuals, but increases its reinforcing value in a subset of obese individuals. This increase in the reinforcing value of food predicts future weight gain. Similarly, we have shown that repeated intake of caffeinated soda increases its reinforcing value in boys, but not in girls. This increase in reinforcing value is not related to usual caffeine consumption, but may be associated with positive, subjective effects of caffeine that are more likely to be reported by boys than by girls. Because food and beverage reinforcement relates to real-world consumption, it is important to determine factors that increase or decrease the reinforcing value and determine the consequences of these responses. We are especially interested in determining ways to shift the behavioral economic curve in order to develop novel strategies to decrease the reinforcing value of less healthy snack foods and beverages, such as soda, potato chips and candy and to increase the reinforcing value of healthier foods and beverages, such as water, fruits, and vegetables. Copyright © 2014 Elsevier Inc. All rights reserved.
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Sy, Jolene R.; Borrero, John C.; Borrero, Carrie S. W.
2010-01-01
We assessed problem and appropriate behavior in the natural environment from a matching perspective. Problem and appropriate behavior were conceptualized as concurrently available responses, the occurrence of which was thought to be determined by the relative rates or durations of reinforcement. We also assessed whether response allocation could…
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Intimate relations and sexual abuse in Danish Sport
DEFF Research Database (Denmark)
Støckel, Jan Toftegaard
of sexual abuse prevalence in a national sample of athletes from recreational, regional competitive level, national and international elite level. Results from the total sample (N=1660) revealed that 5% (N=83) of athletes reported being manipulated or coerced into sexual contact at some time in their lives......, and in five cases the offender was reported to be a coach. Significant gender differences were found as 6.3% of female athletes reported lifetime sexual abuse as opposed to 3% among male athletes. Almost one in three athletes reported to have experienced an intimate relationship with a coach...... reporting to have had experienced an intimate relationship with a coach as an adult had a more positive response regarding the relationship than athletes experiencing the same at 13-17 years of age. Elite athletes had a more critical response to coach-athlete relationships than at other sport levels...
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DEFF Research Database (Denmark)
Gems, Gerald R.; Pfister, Gertrud Ursula
2014-01-01
The authors describe, analyze and evaluate sport related globalization processes with a focus on transnationalism, colonialism, imperialism, and, more generally, geopolitical developments. They provide a variety of theoretical frameworks as they explore the emergence of modern sport and its...... dissemination around the world. In spite of resistance by the adherents of gymnastics or traditional movement cultures, sport with its focus on competition and records became popular all over the world. Both Great Britain and the United States induced their political and cultural hegemony via the soft power...... of modern sport which caused reactions, e.g. resistances or adaptations of indigenous, colonized, and other affected populations....
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Coaches' Coaching Competence in Relation to Athletes' Perceived Progress in Elite Sport
Moen, Frode; Federici, Roger A.
2013-01-01
This article looks at whether higher levels of perceived coaching competencies focusing on relational issues, were associated with higher satisfaction among elite athletes with their progress in sport. In order to explore this, we investigated elite athletes' perceptions of their coaches' coaching competence (CCS) and how these perceptions related…
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Injury risk is different in team and individual youth sport.
Theisen, Daniel; Frisch, Anne; Malisoux, Laurent; Urhausen, Axel; Croisier, Jean-Louis; Seil, Romain
2013-05-01
This study compared sports injury incidence in young high-level athletes from various team and individual sports and investigated if sport participation patterns are linked to injuries. Prospective cohort follow-up. Pupils from a public sports school (12-19 years) were recruited over two separate school years (2008-2009: 42 weeks, n=199 athletes; 2009-2010: 40 weeks, n=89 athletes). Training and competition volume and intensity were recorded via a personal sports diary. Sports injuries (time-loss definition) were registered by medical staff members using a standardized questionnaire. Injury incidence was significantly higher in team compared with individual sports (6.16 versus 2.88 injuries/1000h, respectively), as a result of a higher incidence of both traumatic (RR=2.17; CI95%=1.75-2.70; pteam sports participation had a hazard ratio of 2.00 (CI95%=1.49-2.68; psports, with additionally previous injury being a risk and age a protective factor. The number of competitions per 100 days was significantly higher in team sports, whereas the number of intense training sessions per 100 days was significantly lower. In team sports, the number of competitions per 100 days was positively associated with injuries (HR=1.072; CI95% [1.033; 1.113]; psports the number of competitions per 100 days had a protective effect (HR=0.940; CI95% [0.893; 0.989]; p=0.017). Team sports participation entailed a higher injury risk, whatever the injury category. Further research should elucidate the role of characteristics related to sport participation in injury causation. Copyright © 2012 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.
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Ortiz, Mauricio
2002-01-01
With the increasing involvement of state and local governments in the professional sports industry over the last quarter of a century, the debate has arisen over whether the luring of a professional sports franchise or the construction of a stadium for a professional sports franchise provides any type of significant economic stimulus to a city. There are those who have engaged in this debate who believe the potential impact of these events to be significant and positive for a city. There ar...
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VIOLENCE AND AGGRESSIVENESS IN SPORTS. ETIOLOGY
Directory of Open Access Journals (Sweden)
Maria LULESCU
2015-07-01
Full Text Available The present paper analyses the causes that lead to violent behaviour in sport (from the social, economic, biological and psychological factors to the violent patterns promoted by mass media and it identifies the measures that could be adopted for preventing and fighting against this widespread phenomenon in today’s society. The phenomenon of violence in sport appeared subsequent to the “Sport Revolution”, which occurred in the 19th century, when sport became a mass and democratic phenomenon. Today sport is accessible to all society members for whom it has acquired cultural and economic importance; however, it is generally agreed that sport events are more or less frequently accompanied by violent behaviour on the part of most or some of its supporters. This scientific article enumerates the causes that trigger violent behaviour in society: from the inner ones (tension, fear, lack of success, incapacity to the social, biological, psychological and economic ones (lack of education, illnesses, trauma and poverty. Similarly, the present article analyses the influence of mass media upon human behaviour while taking into consideration two paradigms: there is a former paradigm, according to which mass media strongly influence human behaviour, by inculcating upon people violent reactions; there is a latter paradigm, according to which the influence of mass media on human behaviour is relatively insignificant for it is the individual that controls this influence. In this paper I have also analysed the risk factors that trigger violence and aggressiveness on stadiums, according to the inquiries made by the Ministry of Administration and Domestic Affairs. As solutions for violence prevention and deterrence, I have suggested: - the implementation of the objectives promoted by the Olympic Movement, which may contribute to the formation of a better and more peaceful world through the education of the youth in accordance with the principles and values of
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Directory of Open Access Journals (Sweden)
Bin Ding
2017-06-01
Full Text Available Reinforced concrete structure featured by strong bearing capacity, high rigidity, good integrity, good fire resistance, and extensive applicability occupies a mainstream position in contemporary architecture. However, with the development of social economy, people need higher requirements on architectural structure; durability, especially, has been extensively researched. Because of the higher requirement on building material, ordinary reinforced concrete structure has not been able to satisfy the demand. As a result, some new materials and structures have emerged, for example, fibre reinforced polymers. Compared to steel reinforcement, fibre reinforced polymers have many advantages, such as high tensile strength, good durability, good shock absorption, low weight, and simple construction. The application of fibre reinforced polymers in architectural structure can effectively improve the durability of the concrete structure and lower the maintenance, reinforcement, and construction costs in severe environments. Based on the concepts of steel tube concrete, fibre reinforced composite material confined concrete, and fibre reinforced composite material tubed concrete, this study proposes a novel composite structure, i.e., fibre reinforced composite material and steel tube concrete composite structure. The structure was developed by pasting fibre around steel tube concrete and restraining core concrete using fibre reinforced composite material and steel tubes. The bearing capacity and ultimate deformation capacity of the structure was tested using column axial compression test.
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Sports-related muscle injuries of the lower extremity: MR imaging appearances
International Nuclear Information System (INIS)
Sanchez-Marquez, A.; Gil-Garcia, M.; Valls, C.; Narvaez-Garcia, J.; Andia-Navarro, E.; Pozuelo-Segura, O.; Portabella-Blavia, F.
1999-01-01
Sports-related injuries of the lower extremity are frequent. Before magnetic resonance (MR) imaging was available, ultrasound, radionuclide scintigraphy and computed tomography were used to evaluate muscle trauma. Although relatively inexpensive, these imaging modalities are limited by their low specificity. The high degree of soft tissue contrast and multiplanar capability of MR imaging, allow direct visualization as well as characterization of traumatic muscle lesions. This pictorial review highlights the spectrum of traumatic muscle lesions on MRI, with emphasis on its typical appearances. (orig.)
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Considering sport participation as a source for physical activity among adolescents.
Pharr, Jennifer; Lough, Nancy L
2014-07-01
Studies have shown participation in sport is lower among girls than boys, decreases as students matriculate through high school, is lowest among Black and Hispanic girls and has a positive relationship with SES. With sport recognized as a contributor to physical activity and health in adolescents, consideration of diminishing rates of participation appears warranted. The purpose of this study was to identify patterns related to differences in self-reported sport participation between genders, ethnic groups, grades and SES. This study was a cross-sectional, secondary analysis of data collected for a sport interest survey. All students in grades 8-11 attending middle and high schools were provided an opportunity to participate in the survey. Data from 49,832 students were analyzed. Among the participants, Black girls participated more and White girls participated less than expected. Black boys participated more while White and Asian boys participated less than expected. Reported sport participation was high compared with national data when analyzed by gender and ethnic group. Sport participation was higher in low SES schools compared with high SES schools. The importance of sport as a source of physical activity in underserved groups is significant.
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Gordimer’s rendition of the picaresque in A Sport of Nature
Directory of Open Access Journals (Sweden)
M. Wenzel
1993-05-01
Full Text Available The aim of this article is twofold: firstly, to explore the picaresque elements present in Nadine Gordimer’s A Sport of Nature and secondly, to relate them to her more pronounced stance on feminism which has evolved since the 1980s. I suggest that an appropriate reading strategy would not only foreground these issues but also highlight A Sport of Nature as one of her most underrated novels. Following the example of the Latin American authors Isabel Allende and Elena Poniatowska, Cordimer has appropriated the picaresque tradition as an ideal vehicle to depict the elements of social critique and feminist assertion which characterize A Sport of Nature. The ironic retrospective stance on society, conventionally represented by a picaro as a social outcast, is reinforced by the introduction of a picara, thereby underlining the double marginalization of women as subjects and sexual objects. I propose that a feminist-oriented reading of the text which recognizes this subversive quality, would lend a different dimension to its interpretation. The character of Hillela serves as an implicit example of female ingenuity which attains political equality through devious means despite, and as a result of, the constraints of a hypocritical society and an entrenched patriarchal system. Seen from this perspective, the seemingly disparate elements of the novel coalesce to present a damning picture of contemporary society.
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Born to fight? Genetics and combat sports
Directory of Open Access Journals (Sweden)
Emerson Franchini
2014-02-01
Full Text Available Recently, the influence of genetics on sports performance has received increased attention from many researchers. In combat sports, some investigations have also been conducted. This article’s main objective was to review the representation of specific gene polymorphisms in combat sports athletes compared to controls. The following databases were searched: PubMed, Web of Science and SportDiscus. The terms used in this search involved combat sports (boxing, karate, judo, mixed martial arts, taekwondo and wrestling, genes, genetics and candidate genes. Articles published until November 2013 were included if combat sports athletes were considered as a single group (i.e., not mixed with athletes of other sports. Seven studies were found, with two presenting no difference between combat sports athletes and controls, two presenting higher frequencies of candidate genes related to a more endurance-related profile compared to controls, and three where a more power-related gene overrepresentation was found in comparison to controls. Taken together, the initial studies about the genetic characteristics of combat sports athletes are controversial, which is probably due to the mixed (aerobic and anaerobic characteristic and to the multifactorial performance determinants of these sports.
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Sport Governance and Policy Development: An Ethical Approach to Managing Sport in the 21st Century
Sawyer, Thomas H.; Bodey, Kimberly J.; Judge, Lawrence W.
2008-01-01
"Sport Governance and Policy Development" is written with the sport management student in mind. Designed to address the curriculum standards set by the National Association for Sport and Physical Education and the North American Society for Sport Management, this book provides information to meet core and related competency areas required for the…
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Reinforcement learning in supply chains.
Valluri, Annapurna; North, Michael J; Macal, Charles M
2009-10-01
Effective management of supply chains creates value and can strategically position companies. In practice, human beings have been found to be both surprisingly successful and disappointingly inept at managing supply chains. The related fields of cognitive psychology and artificial intelligence have postulated a variety of potential mechanisms to explain this behavior. One of the leading candidates is reinforcement learning. This paper applies agent-based modeling to investigate the comparative behavioral consequences of three simple reinforcement learning algorithms in a multi-stage supply chain. For the first time, our findings show that the specific algorithm that is employed can have dramatic effects on the results obtained. Reinforcement learning is found to be valuable in multi-stage supply chains with several learning agents, as independent agents can learn to coordinate their behavior. However, learning in multi-stage supply chains using these postulated approaches from cognitive psychology and artificial intelligence take extremely long time periods to achieve stability which raises questions about their ability to explain behavior in real supply chains. The fact that it takes thousands of periods for agents to learn in this simple multi-agent setting provides new evidence that real world decision makers are unlikely to be using strict reinforcement learning in practice.
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Gomez, Andrew Thomas; Rao, Ashwin
2016-03-01
Adventure and extreme sports often involve unpredictable and inhospitable environments, high velocities, and stunts. These activities vary widely and include sports like BASE jumping, snowboarding, kayaking, and surfing. Increasing interest and participation in adventure and extreme sports warrants understanding by clinicians to facilitate prevention, identification, and treatment of injuries unique to each sport. This article covers alpine skiing and snowboarding, skateboarding, surfing, bungee jumping, BASE jumping, and whitewater sports with emphasis on epidemiology, demographics, general injury mechanisms, specific injuries, chronic injuries, fatality data, and prevention. Overall, most injuries are related to overuse, trauma, and environmental or microbial exposure. Copyright © 2016 Elsevier Inc. All rights reserved.
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The Athletae Dei: Missing the Meaning of Sport.
Hoffman, Shirl J.
By making virtue of ascesis or self-discipline in their sport, the athlete evangelists (the "athletae-Dei"), unwittingly rob sport of its fundamental theological significance. These proponents of an evangelical brand of protestant theology have shifted drastically from an anti-sport stance of a century ago to a position that not only…
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Sports Type Classification using Signature Heatmaps
DEFF Research Database (Denmark)
Gade, Rikke; Moeslund, Thomas B.
2013-01-01
Automatic classification of activities in a sports arena is important in order to analyse and optimise the use of the arenas. In this work we classify five sports types based only on occupancy heatmaps produced from position data. Due to privacy issues we use thermal imaging for detecting people...
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Problems of Sport Biomechanics and Robotics
Directory of Open Access Journals (Sweden)
Wlodzimierz S. Erdmann
2013-02-01
Full Text Available This paper presents many common areas of interest of different specialists. There are problems described from sport, biomechanics, sport biomechanics, sport engineering, robotics, biomechanics and robotics, sport biomechanics and robotics. There are many approaches to sport from different sciences and engineering. Robotics is a relatively new area and has had moderate attention from sport specialists. The aim of this paper is to present several areas necessary to develop sport robots based on biomechanics and also to present different types of sport robots: serving balls, helping to provide sports training, substituting humans during training, physically participating in competitions, physically participating in competitions against humans, serving as models of real sport performance, helping organizers of sport events and robot toys. Examples of the application of robots in sports communities are also given.
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Prevalence and patterns of combat sport related maxillofacial injuries.
Shirani, Gholamreza; Kalantar Motamedi, Mohammad Hosein; Ashuri, Alireza; Eshkevari, Pooyan Sadr
2010-10-01
This study was designed to assess the prevalence, distribution, and patterns of injury among athletes engaged in combat sports and compare the prevalence, pattern, and types of oral and maxillofacial trauma in these athletes. A total of 120 male athletes engaged in four combat sports (boxing, taekwondo, kickboxing, and Muay Thai) who had sustained bodily trauma were studied; 95 subjects with at least one traumatic injury to the face requiring treatment were referred to us by the physician team. The type of injury (facial laceration, facial fractures, jaw dislocation, etc.), site of facial injury (jaw, nose, malar bone, teeth, etc.), dental injuries (tooth fracture, displacement, luxation, and avulsion), causative sport (boxing, taekwondo, kickboxing, and Muay Thai) as well as demographic data were recorded. Injuries were examined clinically and radiographically, and treated accordingly by a specialist. Treatment data and demographics were recorded for each subject. Recorded data were assessed, and χ(2), ANOVA, and Kruskal-Wallis tests were used to statistically analyze and compare the data. Of 120 subjects, 95 male subjects (79.2%), aged 18-25 years (avg. 20 years), had at least one traumatic injury to the face requiring medical treatment. These injuries included facial laceration, bone fractures (nose, mandible, and zygoma), dental injuries (displacement, luxation, fracture, and avulsion), and mandibular dislocation which were recorded in 83 (69.2%), 55 (45.1%), 53 (44.2%), and 8 (6.7%) cases respectively. Statistically significant differences were encountered among various injuries and the sports; kickboxing caused the most maxillofacial injuries and was identified as more injurious. Tooth fractures (59.7%) were the most common dental injuries, and the nose (84.7%) was the most frequently fractured facial bone. Lacerations were more common in Thai-boxers (93.3%). Injuries were significantly greater in professional rather than amateur athletes. In this study
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Prevalence and patterns of combat sport related maxillofacial injuries
Directory of Open Access Journals (Sweden)
Shirani Gholamreza
2010-01-01
Full Text Available Aim: This study was designed to assess the prevalence, distribution, and patterns of injury among athletes engaged in combat sports and compare the prevalence, pattern, and types of oral and maxillofacial trauma in these athletes. Materials and Methods: A total of 120 male athletes engaged in four combat sports (boxing, taekwondo, kickboxing, and Muay Thai who had sustained bodily trauma were studied; 95 subjects with at least one traumatic injury to the face requiring treatment were referred to us by the physician team. The type of injury (facial laceration, facial fractures, jaw dislocation, etc., site of facial injury (jaw, nose, malar bone, teeth, etc., dental injuries (tooth fracture, displacement, luxation, and avulsion, causative sport (boxing, taekwondo, kickboxing, and Muay Thai as well as demographic data were recorded. Injuries were examined clinically and radiographically, and treated accordingly by a specialist. Treatment data and demographics were recorded for each subject. Recorded data were assessed, and c2 , ANOVA, and Kruskal-Wallis tests were used to statistically analyze and compare the data. Results: Of 120 subjects, 95 male subjects (79.2%, aged 18-25 years (avg. 20 years, had at least one traumatic injury to the face requiring medical treatment. These injuries included facial laceration, bone fractures (nose, mandible, and zygoma, dental injuries (displacement, luxation, fracture, and avulsion, and mandibular dislocation which were recorded in 83 (69.2%, 55 (45.1%, 53 (44.2%, and 8 (6.7% cases respectively. Statistically significant differences were encountered among various injuries and the sports; kickboxing caused the most maxillofacial injuries and was identified as more injurious. Tooth fractures (59.7% were the most common dental injuries, and the nose (84.7% was the most frequently fractured facial bone. Lacerations were more common in Thai-boxers (93.3%. Injuries were significantly greater in professional rather
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Yengo-Kahn, Aaron M; Gardner, Ryan M; Kuhn, Andrew W; Solomon, Gary S; Bonfield, Christopher M; Zuckerman, Scott L
2017-10-01
The risk of sport-related concussion (SRC) has emerged as a major public health concern. In rare instances, sport-related head injuries can be even more severe, such as subdural hemorrhage, epidural hemorrhage, or malignant cerebral edema. Unlike SRCs, sport-related structural brain injury (SRSBI) is rare, may require neurosurgical intervention, and can lead to permanent neurologic deficit or death. Data characterizing SRSBI are limited, and many have recognized the need to better understand these catastrophic brain injuries. The goal of the current series is to describe, in detail, the presentation, management, and outcomes of examples of these rare injuries. During the fall of 2015, three high school football players presented with acute subdural hemorrhages following in-game collisions and were treated at our institution within a span of 2 months. For the 2 athletes who required surgical intervention, a previous SRC was sustained within 4 weeks before the catastrophic event. One year after injury, 2 players have returned to school, though with persistent deficits. One patient remains nonverbal and wheelchair bound. None of the athletes has returned to sports. Acute subdural hemorrhage resultant from an in-game football collision is rare. The temporal proximity of the reported SRSBIs to recent SRCs emphasizes the importance of return-to-play protocols and raises questions regarding the possibility of second impact syndrome. Although epidemiologic conclusions cannot be drawn from this small sample, these cases provide a unique opportunity to demonstrate the presentation, management, and long-term outcomes of SRSBI in American high school football. Copyright © 2017 Elsevier Inc. All rights reserved.
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Feuerbacher, Erica N; Wynne, Clive D. L
2012-01-01
Despite the intimate relationship dogs share with humans in Western society, we know relatively little about the variables that produce and maintain dog social behavior towards humans. One possibility is that human social interaction is itself a reinforcer for dog behavior. As an initial assessment of the variables that might maintain dog social behavior, we compared the relative efficacy of brief human social interaction to a small piece of food as a reinforcer for an arbitrary response (nose touch). We investigated this in three populations of canids: shelter dogs, owned dogs, and hand-reared wolves. Across all three canid populations, brief social interaction was a relatively ineffective reinforcer compared to food for most canids, producing lower responding and longer latencies than food. PMID:22851794
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Assessment of cognitive recovery following sports related head trauma in boxers.
Ravdin, Lisa D; Barr, William B; Jordan, Barry; Lathan, William E; Relkin, Norman R
2003-01-01
To prospectively examine recovery of cognitive function within one month following subconcussive sports related head trauma. A prospective study of New York State licensed professional boxers who underwent testing of cognitive functioning before and after (within days, one week, and one month) a professional bout. Male professional athletes recruited from the New York State Athletic Commission and local boxing gyms. Twenty-six licensed professional boxers were enrolled in the protocol. Data is presented on the 18 participants who completed testing on at least three of the four time points. Serial neuropsychological assessment before and after the athletes engaged in competition. Neuropsychological measures of cognitive functioning, including new learning and memory, information processing speed, and mental flexibility. A series of repeated measures MANOVAS revealed significant within subject differences across testing on complex information processing and verbal fluency. Post hoc analyses indicated significant differences between time 1 (baseline) and time 4 (one month post), with scores one month following the bout indicating significantly improved performance. Memory scores did not change significantly across testing; however, prior boxing exposure measured by total number of professional bouts was associated with poorer memory performance. Cognitive testing one month following participation in a professional boxing bout yielded scores suggestive of recovery to a level above the baseline. We conclude that baseline assessment taken during periods of intense training are likely confounded by other pre-bout conditions (i.e., sparring, rapid weight loss, pre-bout anxiety) and do not represent true baseline abilities. Instability of performance associated with mild head injury may complicate the interpretation of post-injury assessments. Practice effects may also confound the interpretation of serial assessments, leading to underestimation of the effects of sports
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Habituation of reinforcer effectiveness
Directory of Open Access Journals (Sweden)
David R Lloyd
2014-01-01
Full Text Available In this paper we propose an integrative model of habituation of reinforcer effectiveness (HRE that links behavioral and neural based explanations of reinforcement. We argue that habituation of reinforcer effectiveness (HRE is a fundamental property of reinforcing stimuli. Most reinforcement models implicitly suggest that the effectiveness of a reinforcer is stable across repeated presentations. In contrast, an HRE approach predicts decreased effectiveness due to repeated presentation. We argue that repeated presentation of reinforcing stimuli decreases their effectiveness and that these decreases are described by the behavioral characteristics of habituation (McSweeney and Murphy, 2009;Rankin et al., 2009. We describe a neural model that postulates a positive association between dopamine neurotransmission and HRE. We present evidence that stimulant drugs, which artificially increase dopamine neurotransmission, disrupt (slow normally occurring HRE and also provide evidence that stimulant drugs have differential effects on operant responding maintained by reinforcers with rapid vs. slow HRE rates. We hypothesize that abnormal HRE due to genetic and/or environmental factors may underlie some behavioral disorders. For example, recent research indicates that slow-HRE is predictive of obesity. In contrast ADHD may reflect ‘accelerated-HRE’. Consideration of HRE is important for the development of effective reinforcement based treatments. Finally, we point out that most of the reinforcing stimuli that regulate daily behavior are non-consumable environmental/social reinforcers which have rapid-HRE. The almost exclusive use of consumable reinforcers with slow-HRE in pre-clinical studies with animals may have caused the importance of HRE to be overlooked. Further study of reinforcing stimuli with rapid-HRE is needed in order to understand how habituation and reinforcement interact and regulate behavior.
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DEFF Research Database (Denmark)
Niclasen, B.; Petzold, M.; Schnohr, Christina Warrer
2012-01-01
Aim: The aim of this study was to examine how vigorous physical activity (recreational physical activity) (VPA) and moderate to vigorous physical activity as a part of daily life (MVPA) is associated with structural characteristics (availability of sports facilities and sports clubs with child...... facilities and of sports clubs with child members as independent variables, and adjusted for age, gender, family affluence (FAS), and type of habitation (capital, town or village). Results: High VPA increased with access to indoor facilities, while high MVPA was less likely (odds ratio (OR) 0.54 (0......, gender and FAS but positively associated if also adjusted for indoor sports facilities. Conclusions: Access to indoor sports facilities itself had a positive association with high VPA, but was persistently negatively associated with high MVPA. Presence of sports clubs with child members was positively...
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Reinjury anxiety, coping, and return-to-sport outcomes: a multiple mediation analysis.
Wadey, Ross; Podlog, Leslie; Hall, Morgan; Hamson-Utley, Jordan; Hicks-Little, Charlie; Hammer, Chris
2014-08-01
This study aimed to examine whether the dimensions of reinjury anxiety (i.e., intensity, frequency, and direction) predicted perceived return-to-sport outcomes and whether coping mediated this relationship. Using a cross-sectional research design, 335 participants (M age = 23.5; SD = 6.6) who had sustained a sports-related injury preventing participation in training and competition for a minimum of 4 weeks (M time loss = 98 days; SD = 96.8) completed measures of reinjury anxiety (RIA-RE subscale of the Reinjury Anxiety Inventory (RIAI); Walker, Thatcher, & Lavallee, 2010), coping (MCOPE; Crocker & Graham, 1995), and perceived return-to-sport outcomes (RSSIQ; Podlog & Eklund, 2005). Pearson product-moment correlation and Preacher and Hayes's (2008) bootstrapping procedure were used to analyze the data. Consistent with our hypotheses, results indicated a positive relationship between reinjury anxiety (intensity and frequency) and heightened return concerns, whereas reinjury anxiety interpreted as facilitative toward postinjury performance was associated with a positive renewed perspective on sport participation. Significant indirect effects for coping were found for wishful thinking, venting of emotions, denial, and behavioral disengagement. Future avenues of research that aim to provide a greater knowledge and understanding of the relationship between reinjury anxiety and return-to-sport outcomes are discussed, including the need for alternative theoretical perspectives and diverse methodologies.
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Super, Sabina; Hermens, Niels; Verkooijen, Kirsten; Koelen, Maria
2014-07-09
Sport participation has been associated with improved life prospects such as academic performance and employability prospects. As such, promoting sport participation might be a way to increase life prospects, especially for socially vulnerable youth because they are less physically active than their peers. However, the evidence for the causal effect of sport participation on these outcomes is still limited and little is known about factors that play a role in this possible effect. The aim of this study is four-fold. First, the causal effect of sport participation on life prospects is studied and the underlying mechanisms of this relation are explored. Secondly, the life experiences of the youngsters in the sport context, that may contribute to skill development, are studied. Thirdly, social conditions for a positive effect are explored, as sport is likely to have a positive effect under specific conditions. Fourthly, this study aims to provide insights on the elements of successful partnerships between youth care organisations and local sport clubs. This protocol reports on a mixed method study. An intervention that aims to increase the sport participation of socially vulnerable youth, between 12-23 years old, is implemented in three regions of a Rotterdam youth care organisation. The youngsters in the two control regions receive care-as-usual. The main outcome variables, collected via questionnaires, are the life prospect, sense of coherence and self-regulation skills of the youngsters after 6 and 18 months of follow-up. The Motivational Climate Scale is administered to explore the social conditions for a positive effect and interviews are conducted with sport coaches to explore their role in skill development. Interviews with the youngsters are conducted to gain insight on the life experiences that may lead to skill development. The elements of successful partnerships are collected during interviews with youth care professionals, sport coaches and other
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2014-01-01
Background Sport participation has been associated with improved life prospects such as academic performance and employability prospects. As such, promoting sport participation might be a way to increase life prospects, especially for socially vulnerable youth because they are less physically active than their peers. However, the evidence for the causal effect of sport participation on these outcomes is still limited and little is known about factors that play a role in this possible effect. The aim of this study is four-fold. First, the causal effect of sport participation on life prospects is studied and the underlying mechanisms of this relation are explored. Secondly, the life experiences of the youngsters in the sport context, that may contribute to skill development, are studied. Thirdly, social conditions for a positive effect are explored, as sport is likely to have a positive effect under specific conditions. Fourthly, this study aims to provide insights on the elements of successful partnerships between youth care organisations and local sport clubs. Methods and design This protocol reports on a mixed method study. An intervention that aims to increase the sport participation of socially vulnerable youth, between 12–23 years old, is implemented in three regions of a Rotterdam youth care organisation. The youngsters in the two control regions receive care-as-usual. The main outcome variables, collected via questionnaires, are the life prospect, sense of coherence and self-regulation skills of the youngsters after 6 and 18 months of follow-up. The Motivational Climate Scale is administered to explore the social conditions for a positive effect and interviews are conducted with sport coaches to explore their role in skill development. Interviews with the youngsters are conducted to gain insight on the life experiences that may lead to skill development. The elements of successful partnerships are collected during interviews with youth care professionals
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Energy Technology Data Exchange (ETDEWEB)
Barile, Antonio [Department of Radiology, University of L' Aquila, S. Salvatore Hospital, Via Vetoio, Coppito, 67100 L' Aquila (Italy)]. E-mail: antonio.barile@cc.univaq.it; Limbucci, Nicola [Department of Radiology, University of L' Aquila, S. Salvatore Hospital, Via Vetoio, Coppito, 67100 L' Aquila (Italy); Splendiani, Alessandra [Department of Radiology, University of L' Aquila, S. Salvatore Hospital, Via Vetoio, Coppito, 67100 L' Aquila (Italy); Gallucci, Massimo [Department of Radiology, University of L' Aquila, S. Salvatore Hospital, Via Vetoio, Coppito, 67100 L' Aquila (Italy); Masciocchi, Carlo [Department of Radiology, University of L' Aquila, S. Salvatore Hospital, Via Vetoio, Coppito, 67100 L' Aquila (Italy)
2007-04-15
Spinal injuries are very common among professional or amateur athletes. Spinal sport lesions can be classified in overuse and acute injuries. Overuse injuries can be found after years of repetitive spinal load during sport activity; however specific overuse injuries can also be found in adolescents. Acute traumas are common in contact sports. Most of the acute injuries are minor and self-healing, but severe and catastrophic events are possible. The aim of this article is to review the wide spectrum of spinal injuries related to sport activity, with special regard to imaging finding.
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International Nuclear Information System (INIS)
Barile, Antonio; Limbucci, Nicola; Splendiani, Alessandra; Gallucci, Massimo; Masciocchi, Carlo
2007-01-01
Spinal injuries are very common among professional or amateur athletes. Spinal sport lesions can be classified in overuse and acute injuries. Overuse injuries can be found after years of repetitive spinal load during sport activity; however specific overuse injuries can also be found in adolescents. Acute traumas are common in contact sports. Most of the acute injuries are minor and self-healing, but severe and catastrophic events are possible. The aim of this article is to review the wide spectrum of spinal injuries related to sport activity, with special regard to imaging finding
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Westin, Sandra
1981-01-01
Describes an exhibition (originating at the Smithsonian Institution) which celebrates athletes and sports-related figures who became legends in their own time. Information is presented on art works, sports memorabilia, advertising posters, and photographs. (AM)
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Directory of Open Access Journals (Sweden)
Stevo Popović
2011-08-01
Full Text Available This research was aimed at gaining relevant knowledge about the attitudes toward sport advertising among the question how often consumers participate in sports activities The sample included 433 respondents, divided into six subsample groups: consumers who do not participate in sport activities at all, then consumers who participate in sport activities less than ones a month, next 1–4 a month, 5–10 a month, 11–20 a month, as well as consumers participate in sport activities more than 20 times a months. The sample of variables contained the system of three general attitudes which were modeled by seven-point Likert scale. The results of the measuring were analyzed by multivariate analysis (MANOVA and univariate analysis (ANOVA and Post Hoc test. Based on the results it was concluded that significant differences occur at multivariate level, as well as between all three variables at a significance level of p=.05. It is interesting to highlight that it was found that the significant differences showed up between the consumers who participate in sports activities less than four times a months with negative attitudes and consumers who participate in sports activities more than five times a months with positive attitudes toward sport advertising
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Holt, Nicholas L.; Neely, Kacey C.; Slater, Linda G.; Camiré, Martin; Côté, Jean; Fraser-Thomas, Jessica; MacDonald, Dany; Strachan, Leisha; Tamminen, Katherine A.
2017-01-01
ABSTRACT The overall purpose of this study was to create a model of positive youth development (PYD) through sport grounded in the extant qualitative literature. More specifically, the first objective was to review and evaluate qualitative studies of PYD in sport. The second objective was to analyze and synthesize findings from these studies. Following record identification and screening, 63 articles were retained for analysis. Meta-method analysis revealed strengths of studies were the use of multiple data collection and validity techniques, which produced high-quality data. Weaknesses were limited use of ‘named’ methodologies and inadequate reporting of sampling procedures. Philosophical perspectives were rarely reported, and theory was used sparingly. Results of an inductive meta-data analysis produced three categories: PYD climate (adult relationships, peer relationships, and parental involvement), life skills program focus (life skill building activities and transfer activities), and PYD outcomes (in personal, social, and physical domains). A model that distinguishes between implicit and explicit processes to PYD is presented. PMID:27695511
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SPORT MARKETING MIX STRATEGIES
Directory of Open Access Journals (Sweden)
Alexandru Lucian MIHAI
2013-06-01
Full Text Available This paper presents a brief overview of a significant element of the sport marketing management model called the marketing mix. The marketing mix is crucial because it defines the sport business, and much of the sport marketer’s time is spent on various functions within the marketing mix. The marketing mix is the strategic combination of the product, price, place and promotion elements. These elements are typically called the four Ps of marketing. Decisions and strategies for each are important for the marketer. Information for making educated decisions involving the four Ps comes from the marketing research involving primarily the four Cs - consumer, competitor, company and climate. A critical decision and one of the greatest challenges for the sport business is how to strategically combine the four Ps to best satisfy the consumer, meet company objectives, enhance market position, and enhance competitive advantages.
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Reinforced concrete tomography
International Nuclear Information System (INIS)
Mariscotti, M.A.J.; Morixe, M.; Tarela, P.A.; Thieberger, P.
1997-01-01
In this paper we describe the technique of reinforced concrete tomography, its historical background, recent technological developments and main applications. Gamma radiation sensitive plates are imprinted with radiation going through the concrete sample under study, and then processed to reveal the presence of reinforcement and defects in the material density. The three dimensional reconstruction, or tomography, of the reinforcement out of a single gammagraphy is an original development alternative to conventional methods. Re-bar diameters and positions may be determined with an accuracy of ± 1 mm 0.5-1 cm, respectively. The non-destructive character of this technique makes it particularly attractive in cases of inhabited buildings and diagnoses of balconies. (author) [es
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Sport injuries treated at a physiotherapy center specialized in sports
Directory of Open Access Journals (Sweden)
Guilherme S. Nunes
Full Text Available Abstract Introduction: The risk of injuries related to physical activity and sports may increase if there is predisposition, inappropriate training and/or coach guidance, and absence of sports medicine follow-up. Objective: To assess the frequency of injuries in athletes treated at a physiotherapy center specialized in sports. Methods: For the data collection was carried out the survey of injuries in records of athletes treated in eight years of activities. The data collected included: characteristics of patients, sport, injury kind, injury characteristics and affected body part. Results: From 1090 patient/athlete records, the average age was 25 years old, the athletes were spread across 44 different sports modalities, being the great majority men (75%. The most common type of injury was joint injury, followed by muscular and bone injuries. Chronic injury was the most frequent (47%, while the most common body part injured was the knee, followed by ankle and shoulder. Among all the sports, soccer, futsal, and track and field presented the highest number of injured athletes, respectively. Conclusion: Soccer was the most common sport among the injured athletes, injury kind most frequent was joint injuries and knee was the body part most injured. Chronic injuries were the most common.
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Eime, Rochelle M; Harvey, Jack; Charity, Melanie J; Casey, Meghan; Westerbeek, Hans; Payne, Warren R
2017-06-01
Ecological models have been applied to investigate multiple domains influencing physical activity behaviour, including individual, social, organisational, community, environmental and policy factors. With regard to the built environment, research to date has been limited to small geographical areas and/or small samples of participants. This study examined the geographical association between provision of sport facilities and participation in sport across an entire Australian state, using objective total enumerations of both, for a group of sports, with adjustment for the effect of socioeconomic status (SES). De-identified membership registration data were obtained from state sport governing bodies of four popular team sports. Associations between participation rate, facility provision rate and SES were investigated using correlation and regression methods. Participation rate was positively associated with provision of facilities, although this was complicated by SES and region effects. The non-metropolitan region generally had higher participation rates and better provision of facilities than the metropolitan region. Better provision of sports facilities is generally associated with increased sport participation, but SES and region are also contributing factors. Implications for public health: Community-level analysis of the population, sport participation and provision of facilities should be used to inform decisions of investments in sports facilities. © 2017 The Authors.
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Sports-related injuries among high school athletes--United States, 2005-06 school year.
2006-09-29
Participation in high school sports helps promote a physically active lifestyle. High school sports participation has grown from an estimated 4 million participants during the 1971-72 school year to an estimated 7.2 million in 2005-06. However, despite the documented health benefits of increased physical activity (e.g., weight management, improved self-esteem, and increased strength, endurance, and flexibility), those who participate in athletics are at risk for sports-related injuries. High school athletes account for an estimated 2 million injuries, 500,000 doctor visits, and 30,000 hospitalizations annually. To date, the study of these injuries has been limited by inabilities to calculate injury rates, compare results among groups, and generalize findings from small, nonrepresentative samples. During the 2005-06 school year, researchers at a children's hospital in Ohio used an Internet-based data-collection tool to pilot an injury surveillance system among athletes from a representative national sample of U.S. high schools. This report summarizes the findings of that study, which indicated that participation in high school sports resulted in an estimated 1.4 million injuries at a rate of 2.4 injuries per 1,000 athlete exposures (i.e., practices or competitions). Surveillance of exposure-based injury rates in a nationally representative sample of high school athletes and analysis of injury patterns can help guide activities aimed at reducing these injuries.
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Directory of Open Access Journals (Sweden)
Vladimir Milošević
2013-07-01
Full Text Available Personal interests carry a great potential and are usually a drive to act. Therefore they usually point towards the activity of an individual in his interest area. An insight into the position of the interest in sports and recreation among other interests can be obtained by inspecting the interests of 7th grade elementary school students from Sremska Mitrovica and Jagodina. The sample consisted of 736 7th grade elementary school students of both genders. A non-experimental study of the students’ interests was done using a questionnaire that consisted of 5 interest indicators: job preference, self-estimation of affinity, use of free time, direct self-estimation of interests and reaction to key words-stimuli. Each indicator had 30 items that asses 30 interests. A t test was used to inspect the level of interest in sports and recreation. Also, factor analysis was done for each indicator separately. The reason for this approach is that there is no real confirmation that these 5 indicators are well suited for assessing the interests of young persons in the time we live in. Students’ interest in sports and recreation is about 4 on the scale of 1 to 5, on each of the indicators. The data shows that the interest of 7th grade elementary school students in sports and recreation is closely linked to interest in military, these two interests belong to the same factor regardless of the way the interests are assessed, that is, they belong to the same factor on each of the 5 indicators. The interest in adventure belongs to the same factor as the interest in sports and recreation on 4 out of 5 indicators, and interest in humor, interest in travel and hedonistic interest on 3 out of 5 indicators. These results might indicate that the motives for engaging in sports and recreation are unstable, because this composition of relatedness of the interests can be interpreted as the factor of fun. If that is so, these findings alert to the importance of building a
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Multidisciplinary Management of Pediatric Sports-Related Concussion.
Ellis, Michael J; Ritchie, Lesley J; McDonald, Patrick J; Cordingley, Dean; Reimer, Karen; Nijjar, Satnam; Koltek, Mark; Hosain, Shahid; Johnston, Janine; Mansouri, Behzad; Sawyer, Scott; Silver, Norm; Girardin, Richard; Larkins, Shannon; Vis, Sara; Selci, Erin; Davidson, Michael; Gregoire, Scott; Sam, Angela; Black, Brian; Bunge, Martin; Essig, Marco; MacDonald, Peter; Leiter, Jeff; Russell, Kelly
2017-01-01
To summarize the clinical characteristics and outcomes of pediatric sports-related concussion (SRC) patients who were evaluated and managed at a multidisciplinary pediatric concussion program and examine the healthcare resources and personnel required to meet the needs of this patient population. We conducted a retrospective review of all pediatric SRC patients referred to the Pan Am Concussion Program from September 1st, 2013 to May 25th, 2015. Initial assessments and diagnoses were carried out by a single neurosurgeon. Return-to-Play decision-making was carried out by the multidisciplinary team. 604 patients, including 423 pediatric SRC patients were evaluated at the Pan Am Concussion Program during the study period. The mean age of study patients was 14.30 years (SD: 2.32, range 7-19 years); 252 (59.57%) were males. Hockey (182; 43.03%) and soccer (60; 14.18%) were the most commonly played sports at the time of injury. Overall, 294 (69.50%) of SRC patients met the clinical criteria for concussion recovery, while 75 (17.73%) were lost to follow-up, and 53 (12.53%) remained in active treatment at the end of the study period. The median duration of symptoms among the 261 acute SRC patients with complete follow-up was 23 days (IQR: 15, 36). Overall, 25.30% of pediatric SRC patients underwent at least one diagnostic imaging test and 32.62% received referral to another member of our multidisciplinary clinical team. Comprehensive care of pediatric SRC patients requires access to appropriate diagnostic resources and the multidisciplinary collaboration of experts with national and provincially-recognized training in TBI.
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Habituation of reinforcer effectiveness.
Lloyd, David R; Medina, Douglas J; Hawk, Larry W; Fosco, Whitney D; Richards, Jerry B
2014-01-09
In this paper we propose an integrative model of habituation of reinforcer effectiveness (HRE) that links behavioral- and neural-based explanations of reinforcement. We argue that HRE is a fundamental property of reinforcing stimuli. Most reinforcement models implicitly suggest that the effectiveness of a reinforcer is stable across repeated presentations. In contrast, an HRE approach predicts decreased effectiveness due to repeated presentation. We argue that repeated presentation of reinforcing stimuli decreases their effectiveness and that these decreases are described by the behavioral characteristics of habituation (McSweeney and Murphy, 2009; Rankin etal., 2009). We describe a neural model that postulates a positive association between dopamine neurotransmission and HRE. We present evidence that stimulant drugs, which artificially increase dopamine neurotransmission, disrupt (slow) normally occurring HRE and also provide evidence that stimulant drugs have differential effects on operant responding maintained by reinforcers with rapid vs. slow HRE rates. We hypothesize that abnormal HRE due to genetic and/or environmental factors may underlie some behavioral disorders. For example, recent research indicates that slow-HRE is predictive of obesity. In contrast ADHD may reflect "accelerated-HRE." Consideration of HRE is important for the development of effective reinforcement-based treatments. Finally, we point out that most of the reinforcing stimuli that regulate daily behavior are non-consumable environmental/social reinforcers which have rapid-HRE. The almost exclusive use of consumable reinforcers with slow-HRE in pre-clinical studies with animals may have caused the importance of HRE to be overlooked. Further study of reinforcing stimuli with rapid-HRE is needed in order to understand how habituation and reinforcement interact and regulate behavior.
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Gender issues in Danish sports organizations - experiences, attitudes and evaluations
DEFF Research Database (Denmark)
Pfister, Gertrud
2006-01-01
and discussion of the results of a quantitative survey of Danish sports leaders. From the perspective of the respondents, the lack of women in leadership positions is mainly due to the decisions of women. But the results of the study also indicate that the gender hierarchies are rooted in the culture...... of the organizations. Organizational cultures are enacted in everyday situations and relate among other things to aims, leader ideals and practices of an organization. The leader ideal in sports with a stronghold in sports associations-a person who is able and willing to invest much time for voluntary work, seems...... as an important issue in sport in general, only a small percentage of men and women are willing to invest time and energy in this issue. Because changes of the organizational culture are not seen as a necessity by the majority of the "insiders", analyses and perspectives on the gender hierarchy from outside...
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Kluger, Nicolas
2012-10-01
Recreational or regular physical and sport activities may be responsible for a wide range of cutaneous complications. Among them, "sports purpura" is a peculiar symptom that can occur during a large number of sports. "Effort purpura" defines any purpura occurring within the context of physical exercise irrespective of its cause. Therefore this clinical diagnosis includes various aetiologies. Diagnosis of traumatic purpura is often easy if the sport is mentioned in the anamnesis; cutaneous exercise - induced vasculitis must be also noted. Purpura can reveal systemic diseases or internal haemorrhage, such as spleen rupture, thrombopathies or systemic vasculitis, and other effort purpuras must be taken into account, including those related to the environment (cold, sun exposure...). Knowledge of a physical activity before the occurrence of purpura should be known by practitioner to avoid unnecessary and costly explorations in most of the cases. Copyright © 2012 Elsevier Masson SAS. All rights reserved.
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International Society of Sports Nutrition Position Stand: protein and exercise.
Jäger, Ralf; Kerksick, Chad M; Campbell, Bill I; Cribb, Paul J; Wells, Shawn D; Skwiat, Tim M; Purpura, Martin; Ziegenfuss, Tim N; Ferrando, Arny A; Arent, Shawn M; Smith-Ryan, Abbie E; Stout, Jeffrey R; Arciero, Paul J; Ormsbee, Michael J; Taylor, Lem W; Wilborn, Colin D; Kalman, Doug S; Kreider, Richard B; Willoughby, Darryn S; Hoffman, Jay R; Krzykowski, Jamie L; Antonio, Jose
2017-01-01
The International Society of Sports Nutrition (ISSN) provides an objective and critical review related to the intake of protein for healthy, exercising individuals. Based on the current available literature, the position of the Society is as follows:An acute exercise stimulus, particularly resistance exercise, and protein ingestion both stimulate muscle protein synthesis (MPS) and are synergistic when protein consumption occurs before or after resistance exercise.For building muscle mass and for maintaining muscle mass through a positive muscle protein balance, an overall daily protein intake in the range of 1.4-2.0 g protein/kg body weight/day (g/kg/d) is sufficient for most exercising individuals, a value that falls in line within the Acceptable Macronutrient Distribution Range published by the Institute of Medicine for protein.Higher protein intakes (2.3-3.1 g/kg/d) may be needed to maximize the retention of lean body mass in resistance-trained subjects during hypocaloric periods.There is novel evidence that suggests higher protein intakes (>3.0 g/kg/d) may have positive effects on body composition in resistance-trained individuals (i.e., promote loss of fat mass).Recommendations regarding the optimal protein intake per serving for athletes to maximize MPS are mixed and are dependent upon age and recent resistance exercise stimuli. General recommendations are 0.25 g of a high-quality protein per kg of body weight, or an absolute dose of 20-40 g.Acute protein doses should strive to contain 700-3000 mg of leucine and/or a higher relative leucine content, in addition to a balanced array of the essential amino acids (EAAs).These protein doses should ideally be evenly distributed, every 3-4 h, across the day.The optimal time period during which to ingest protein is likely a matter of individual tolerance, since benefits are derived from pre- or post-workout ingestion; however, the anabolic effect of exercise is long-lasting (at least 24 h), but likely
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Collective efficacy in sports and physical activities: perceived emotional synchrony and shared flow
Directory of Open Access Journals (Sweden)
Larraitz Nerea Zumeta
2016-01-01
Full Text Available This cross-sectional study analyzes the relationship between collective efficacy and two psychosocial processes involved in collective sport-physical activities. It argues that in-group identification and fusion with the group will affect collective efficacy (CE. A sample of 276 university students answered different scales regarding their participation in collective physical and sport activities. Multiple-mediation analyses showed that shared flow and perceived emotional synchrony mediate the relationship between in-group identification and CE, whereas the relationship between identity fusion and CE was only mediated by perceived emotional synchrony. Results suggest that both psychosocial processes explain the positive effects of in-group identification and identity fusion with the group in collective efficacy. Especially, the role of perceived emotional synchrony in explaining the positive effects of participation in collective sport-physical activities is underlined. In sum, this study remarks the utility of collective actions and social identities to explain the psychosocial processes related to collective efficacy in physical and sports activities. Finally, practical implications are discussed.
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Heidegger's Concept of Authenticity and Sport Experience
Higuchi, Satoshi
1991-01-01
Carolyne Thomas regarded the aesthetic experience in sport as authentic in the meaning from Martin Heidegger's Being and Time. To examine the adequacy of the interpretation, the comparison between Thomas' concept of authenticity and the Heidegger's was attempted in this paper. Thomas' concept of authenticity is opposite to accidentality. It is also positive realization of a self, positive movement toward a capable being, a unique self, a unique experience, and honesty in a sport situation...
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PREPARTICIPATION SCREENING – THE SPORTS PHYSICAL THERAPY PERSPECTIVE
Blackburn, Turner A.; Boucher, Brenda
2013-01-01
Background and Purpose: The sports physical therapist (SPT) is uniquely qualified to participate in the provision of preparticipation physical examinations (PPE). The PPE is recommended prior to athletic participation and required by many jurisdictions. There is little research to support the process and components; however, a number of professional organizations have recommendations that direct the PPE process. Description of Topic and Related Evidence: This clinical commentary highlights the role of the sports physical therapist and current evidence related to the preparticipation physical examination process. Data sources were limited to include professional positions and peer reviewed publications from 1988 through January 2013. Relation to Clinical Practice: Preparticipation physicals should be useful, comprehensive, and cost effective for the athlete and the health care team. Additional research is indicated in many of the areas of the PPE. The SPT is a valuable member of the health care team and can be a primary facilitator of the PPE in concert with the physician, athletic trainer, athletic organization administrators, and others. Well‐designed and inclusive PPEs can be provided to meet the major objectives of identification of athletes at risk. Controversy continues over the extent of the cardiac screening component as well as other sport or athlete specific components. Level of Evidence: 5 PMID:23593556
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Evaluation of MRI-US Fusion Technology in Sports-Related Musculoskeletal Injuries.
Wong-On, Manuel; Til-Pérez, Lluís; Balius, Ramón
2015-06-01
A combination of magnetic resonance imaging (MRI) with real-time high-resolution ultrasound (US) known as fusion imaging may improve visualization of musculoskeletal (MSK) sports medicine injuries. The aim of this study was to evaluate the applicability of MRI-US fusion technology in MSK sports medicine. This study was conducted by the medical services of the FC Barcelona. The participants included volunteers and referred athletes with symptomatic and asymptomatic MSK injuries. All cases underwent MRI which was loaded into the US system for manual registration on the live US image and fusion imaging examination. After every test, an evaluation form was completed in terms of advantages, disadvantages, and anatomic fusion landmarks. From November 2014 to March 2015, we evaluated 20 subjects who underwent fusion imaging, 5 non-injured volunteers and 15 injured athletes, 11 symptomatic and 4 asymptomatic, age range 16-50 years, mean 22. We describe some of the anatomic landmarks used to guide fusion in different regions. This technology allowed us to examine muscle and tendon injuries simultaneously in US and MRI, and the correlation of both techniques, especially low-grade muscular injuries. This has also helped compensate for the limited field of view with US. It improves spatial orientation of cartilage, labrum and meniscal injuries. However, a high-quality MRI image is essential in achieving an adequate fusion image, and 3D sequences need to be added in MRI protocols to improve navigation. The combination of real-time MRI and US image fusion and navigation is relatively easy to perform and is helping to improve understanding of MSK injuries. However, it requires specific skills in MSK imaging and still needs further research in sports-related injuries. Toshiba Medical Systems Corporation.
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Joint Extraction of Entities and Relations Using Reinforcement Learning and Deep Learning
Directory of Open Access Journals (Sweden)
Yuntian Feng
2017-01-01
Full Text Available We use both reinforcement learning and deep learning to simultaneously extract entities and relations from unstructured texts. For reinforcement learning, we model the task as a two-step decision process. Deep learning is used to automatically capture the most important information from unstructured texts, which represent the state in the decision process. By designing the reward function per step, our proposed method can pass the information of entity extraction to relation extraction and obtain feedback in order to extract entities and relations simultaneously. Firstly, we use bidirectional LSTM to model the context information, which realizes preliminary entity extraction. On the basis of the extraction results, attention based method can represent the sentences that include target entity pair to generate the initial state in the decision process. Then we use Tree-LSTM to represent relation mentions to generate the transition state in the decision process. Finally, we employ Q-Learning algorithm to get control policy π in the two-step decision process. Experiments on ACE2005 demonstrate that our method attains better performance than the state-of-the-art method and gets a 2.4% increase in recall-score.
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Joint Extraction of Entities and Relations Using Reinforcement Learning and Deep Learning.
Feng, Yuntian; Zhang, Hongjun; Hao, Wenning; Chen, Gang
2017-01-01
We use both reinforcement learning and deep learning to simultaneously extract entities and relations from unstructured texts. For reinforcement learning, we model the task as a two-step decision process. Deep learning is used to automatically capture the most important information from unstructured texts, which represent the state in the decision process. By designing the reward function per step, our proposed method can pass the information of entity extraction to relation extraction and obtain feedback in order to extract entities and relations simultaneously. Firstly, we use bidirectional LSTM to model the context information, which realizes preliminary entity extraction. On the basis of the extraction results, attention based method can represent the sentences that include target entity pair to generate the initial state in the decision process. Then we use Tree-LSTM to represent relation mentions to generate the transition state in the decision process. Finally, we employ Q -Learning algorithm to get control policy π in the two-step decision process. Experiments on ACE2005 demonstrate that our method attains better performance than the state-of-the-art method and gets a 2.4% increase in recall-score.
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Gucciardi, Daniel F; Jackson, Ben
2015-01-01
Fostering individuals' long-term participation in activities that promote positive development such as organised sport is an important agenda for research and practice. We integrated the theories of planned behaviour (TPB) and basic psychological needs (BPN) to identify factors associated with young adults' continuation in organised sport over a 12-month period. Prospective study, including an online psycho-social assessment at Time 1 and an assessment of continuation in sport approximately 12 months later. Participants (N=292) aged between 17 and 21 years (M=18.03; SD=1.29) completed an online survey assessing the theories of planned behaviour and basic psychological needs constructs. Bayesian structural equation modelling (BSEM) was employed to test the hypothesised theoretical sequence, using informative priors for structural relations based on empirical and theoretical expectations. The analyses revealed support for the robustness of the hypothesised theoretical model in terms of the pattern of relations as well as the direction and strength of associations among the constructs derived from quantitative summaries of existing research and theoretical expectations. The satisfaction of basic psychological needs was associated with more positive attitudes, higher levels of perceived behavioural control, and more favourable subjective norms; positive attitudes and perceived behavioural control were associated with higher behavioural intentions; and both intentions and perceived behavioural control predicted sport continuation. This study demonstrated the utility of Bayesian structural equation modelling for testing the robustness of an integrated theoretical model, which is informed by empirical evidence from meta-analyses and theoretical expectations, for understanding sport continuation. Crown Copyright © 2013. Published by Elsevier Ltd. All rights reserved.
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Ingvarsson, Einar T.; Hanley, Gregory P.; Welter, Katherine M.
2009-01-01
Functional analyses suggested that the disruptive behavior of three preschool children was maintained by escape from demands. While keeping the escape contingency intact, we conducted (a) a density analysis in which the children earned preferred items for task completion according to two schedules that varied in reinforcement density, and (b) a…
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VOLUNTEERS FOR A HIGH RISK SPORT.
Sport parachutists tend to be over-represented in the Western region of the United States. They are, by and large, relatively young males who look...upon the sport as a masculine expression. The sport is objectively dangerous, as measured by the accident rate, and is subjectively perceived as such... Sport parachutists tend to be single-minded in their attitude to the sport , sometimes giving it priority over their commitment to family roles
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Hulme, Adam; Thompson, Jason; Nielsen, Rasmus Oestergaard; Read, Gemma J M; Salmon, Paul M
2018-06-18
There have been recent calls for the application of the complex systems approach in sports injury research. However, beyond theoretical description and static models of complexity, little progress has been made towards formalising this approach in way that is practical to sports injury scientists and clinicians. Therefore, our objective was to use a computational modelling method and develop a dynamic simulation in sports injury research. Agent-based modelling (ABM) was used to model the occurrence of sports injury in a synthetic athlete population. The ABM was developed based on sports injury causal frameworks and was applied in the context of distance running-related injury (RRI). Using the acute:chronic workload ratio (ACWR), we simulated the dynamic relationship between changes in weekly running distance and RRI through the manipulation of various 'athlete management tools'. The findings confirmed that building weekly running distances over time, even within the reported ACWR 'sweet spot', will eventually result in RRI as athletes reach and surpass their individual physical workload limits. Introducing training-related error into the simulation and the modelling of a 'hard ceiling' dynamic resulted in a higher RRI incidence proportion across the population at higher absolute workloads. The presented simulation offers a practical starting point to further apply more sophisticated computational models that can account for the complex nature of sports injury aetiology. Alongside traditional forms of scientific inquiry, the use of ABM and other simulation-based techniques could be considered as a complementary and alternative methodological approach in sports injury research. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.
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Prevalence and patterns of combat sport related maxillofacial injuries
Shirani, Gholamreza; Kalantar Motamedi, Mohammad Hosein; Ashuri, Alireza; Eshkevari, Pooyan Sadr
2010-01-01
Aim: This study was designed to assess the prevalence, distribution, and patterns of injury among athletes engaged in combat sports and compare the prevalence, pattern, and types of oral and maxillofacial trauma in these athletes. Materials and Methods: A total of 120 male athletes engaged in four combat sports (boxing, taekwondo, kickboxing, and Muay Thai) who had sustained bodily trauma were studied; 95 subjects with at least one traumatic injury to the face requiring treatment were referre...
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Myer, Gregory D; Jayanthi, Neeru; Difiori, John P; Faigenbaum, Avery D; Kiefer, Adam W; Logerstedt, David; Micheli, Lyle J
2015-01-01
There is increased growth in sports participation across the globe. Sports specialization patterns, which include year-round training, participation on multiple teams of the same sport, and focused participation in a single sport at a young age, are at high levels. The need for this type of early specialized training in young athletes is currently under debate. Nonsystematic review. Clinical review. Level 4. Sports specialization is defined as year-round training (greater than 8 months per year), choosing a single main sport, and/or quitting all other sports to focus on 1 sport. Specialized training in young athletes has risks of injury and burnout, while the degree of specialization is positively correlated with increased serious overuse injury risk. Risk factors for injury in young athletes who specialize in a single sport include year-round single-sport training, participation in more competition, decreased age-appropriate play, and involvement in individual sports that require the early development of technical skills. Adults involved in instruction of youth sports may also put young athletes at risk for injury by encouraging increased intensity in organized practices and competition rather than self-directed unstructured free play. C. © 2015 The Author(s).
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Investigation on Mechanical Properties of Graphene Oxide reinforced GFRP
Arun, G. K.; Sreenivas, Nikhil; Brahma Reddy, Kesari; Sai Krishna Reddy, K.; Shashi Kumar, M. E.; Pramod, R.
2018-02-01
Graphene and E-glass fibres individually find a very wide field of applications because of their various mechanical and chemical properties. Recently graphene has attracted both academic and industrial interest because it can produce a dramatic improvement in properties at very low filler content. The primary interest of this venture is to investigate on Graphene reinforced polymer matrix nanocomposites and finding the mechanical properties. The composites were fabricated by Hand Lay Process and have been evaluated by the addition of Graphene with 1, 1.5, 2, 2.5 and 3 by weight% as reinforcement in composites. The theoretical and experimental results validate the increase in properties such as tensile strength, hardness and flexural strength with increase in weight proportions from 1% to 3% of graphene powder. It was observed that the composite material with 2.5% weight fraction of graphene yielded superior properties over other weight percentages. Graphene reinforced polymer matrix nanocomposites finds its major applications in the manufacture of aircraft bodies, ballistic missiles, sporting equipment, marine applications and extraterrestrial ventures.
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Three Strikes and You're Out: Reasons to Eliminate Sports from Schools
Vivian, Craig
2009-01-01
The overgrowth of sports in our society has resulted in a host of potential problems for the young athletes who associate with the sport culture found in schools. Although the positive elements of sports are routinely touted, the negative aspects are oftentimes overlooked or trivialized. Most of the positive personal and social aspects attributed…
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DEFF Research Database (Denmark)
Hebert, Jeffrey J.; Møller, Niels C.; Andersen, Lars Bo
2015-01-01
leisure-time sport participation with overall physical activity levels and health-related physical activity guideline concordance. Methods This prospective cohort study was nested in the Childhood Health, Activity, and Motor Performance School Study Denmark. Study participants were a representative sample...... of 1124 primary school students. Organized leisure-time sport participation was reported via text messaging and physical activity was objectively measured over seven days with accelerometry. Associations between sport participation and physical activity level were explored with multilevel mixed...
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Cold surface treatments on fiber-reinforced plastics by pulsed laser
Gebauer, Jana; Franke, Volker; Klotzbach, Udo; Beyer, Eckhard
2017-01-01
The importance of lightweight materials increases in all aspects of manufacturing, e.g. automotive, sports equipment and aerospace [1]. Making fiber reinforced plastics suitable for use in mass production new technologies have to be developed to overcome existing challenges e.g. shorter cycle times or more efficient resource usage. Innovative laser systems are used for a full range of treatments for all materials, like structuring, drilling, joining and cutting [2] - [4]. This paper presents ...