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Sample records for sport activity circuit

  1. SPORTS ACTIVITIES SPONSORSHIP

    Directory of Open Access Journals (Sweden)

    DURBĂCEA - BOLOVAN MARIAN

    2017-12-01

    Full Text Available Sports and economy have discovered each other, hoping to serve common interests. In view of transferring in a more efficient way the information about their products or services to consumers, the business operator finances sports activities for advertising purposes. A company involved in sports sponsorship can instantly transmit the message about its products to millions of potential buyers, thus increasing the market share and hence the profit that it generates. By sponsoring sport it is meant any agreement / convention, under which one party the sponsor makes available to the beneficiary the material resources, financial and / or other benefits in exchange for its association with a sport or sportsman and especially the promise to use this association with sport or sportsman for the purpose of advertising, especially TV advertising. The growing use of athletes as spokespersons for a product is largely due to the ability of athletes to attract public attention and the credibility they enjoy.

  2. MANAGEMENT AND SPORTING ACTIVITIES

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    MONICA DELIA BÎCĂ

    2015-10-01

    Full Text Available “Using applied science in sport management as creates opportunities for rationalization and systematization of sports activity, relying on the knowledge and application of the laws that control the dynamics and phenomena. Management is on the border between art and science. Arts management is manifested by "science" as opposed to use and harness the creative compromise that can produce increased efficiency and effectiveness.”

  3. [Sport and physical activity].

    Science.gov (United States)

    Bria, S; Zeppilli, P

    2010-01-01

    A regular sport activity involves physical and psychological benefits helping to improve the quality of life at any age. This aspect is even more important in the developing age, when the sport takes on a role of training and education. In this context, instances directed to allow adolescent and young adults with heart disease to practice sports seem justified, and they're becoming more pressing since when the diagnostic and therapeutic advances, especially in cardiac surgery and in interventional hemodynamics, allow an increasing number of patients, previously allocated to physical inactivity, to lead an active lifestyle. However, we have to keep in mind that congenital heart disease population is varied, not only by the nature of the malformation, but also because in the same cardiopathy you can find subjects in "natural history" or after surgery and, between them, subjects treated with several techniques and different outcomes. This justifies the need for a close collaboration between sports doctors, cardiologists and heart surgeons, particularly in the management of the most difficult and delicate problems.

  4. FREQUENCY OF SPORT ACTIVITY PARTICIPATION OF SLOVENES

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    Maja Pori

    2010-09-01

    Full Text Available The objective of the study was to investigate the frequency of participation in sport activity of Slovenes. The sample consisted of 1286 persons, 54% were women and 46% were men. To obtain the necessary data a questionnaire method was used. We focused on two groups of questions. The first group reffered to participation in sport activity in general (frequency of any sport activity and the second group reffered to participation in a particular sport. The results show that 33% of Slovenes were regularly active, 31% occasionally active and 36% non-active. They were the most active in the following sport activities: walking, swimming, cycling, alpine skiing and mountaineering.

  5. Active knee joint flexibility and sports activity

    DEFF Research Database (Denmark)

    Hahn, Thomas; Foldspang, Anders; Vestergaard, E

    1999-01-01

    was significantly higher in women than in men and significantly positively associated with weekly hours of swimming and weekly hours of competitive gymnastics. Active knee flexion was significantly positively associated with participation in basketball, and significantly negatively associated with age and weekly......The aim of the study was to estimate active knee flexion and active knee extension in athletes and to investigate the potential association of each to different types of sports activity. Active knee extension and active knee flexion was measured in 339 athletes. Active knee extension...... hours of soccer, European team handball and swimming. The results point to sport-specific adaptation of active knee flexion and active knee extension. Udgivelsesdato: 1999-Apr...

  6. Sports activities after lower limb osteotomy.

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    Gougoulias, Nikolaos; Khanna, Anil; Maffulli, Nicola

    2009-01-01

    Active sports participation can be important in some patients with degenerative joint disease in the lower limb. We investigated whether this is possible after an osteotomy for osteoarthritis of the hip, knee and ankle joints. We performed a literature search using Medline, Cochrane, CINAHL and Google Scholar with no restriction to time period or language using the keywords: 'osteotomy and sports'. Eleven studies (all level IV evidence) satisfied our inclusion and exclusion criteria. Nine reported on high tibial osteotomies, one on periacetabular osteotomies and one on distal tibial osteotomies. The Coleman Methodology Score to assess the quality of studies showed much heterogeneity in terms of study design, patient characteristics, management methods and outcome assessment. Participation in recreational sports is possible in most patients who were active in sports before lower limb osteotomy. In no study were patients able to participate in competitive sports. Intensive participation in sports after osteotomy may adversely affect outcome and lead to failures requiring re-operation. Patients may be able to remain active in selected sports activities after a lower limb osteotomy for osteoarthritis. More rapid progression of arthritis is however a possibility. Prospective comparative studies investigating activities and sports participation in age-matched patients undergoing osteotomy or joint replacement could lead to useful conclusions. Increased activity and active sports participation may lead to progression of arthritis and earlier failure requiring additional surgery.

  7. Epilepsy, physical activity and sports

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    Carrizosa-Moog, Jaime

    2017-01-01

    Full Text Available People with epilepsy are prone to be sedentary compared with the general population. The causes of inactivity are ignorance, prejudice, overprotection, fear and shame. There is no scientific evidence supporting a limitation of physical exercise in persons with epilepsy. The benefits of exercise in these patients are huge. Positive aspects are: physical conditioning, prevention of seizures, emotional wellbeing, social interaction, drug treatment adherence, osteoporosis prevention and better quality of life for patients and their families. Having in mind the individual characteristics, physical exercise should be prescribed and guided. Available evidence underlies the complementary therapeutic effects of physical activity with large positive results at a low cost. Sports or regular physical activity should be a standard indication for persons with epilepsy.

  8. Consumers of leisure sports activities. Case study

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    Oana RUSU

    2017-03-01

    Full Text Available Nowadays, contextual dynamics of society require new understandings of leisure available to the individual. The manner in which he intends to spend his free time may affect the quality of life, beneficial or not. We intend to identify the preferences of the population over 25 years in Iași city, for leisure practicing sport and physical activities in specialized institutions. The sample survey included 150 citizens of Iasi (75 male, 75 female, distributed by age ranges: 25-34; 35-44; 45-54; 55-64 years. They answered a questionnaire with 14 questions that focused customer profile (demographics: age, sex, the behavior of consumption (frequency of practicing sport and physical leisure activities, frequency of practicing sport and physical activities in sports clubs, preferences for various sport and physical activities. The results suggest that sport and physical activities play an important place in free time, preferences turning to programs and services offered by sports clubs and associations in the city. There are gender differences regarding: leisure sports (men devote more time to, but also include several sports activities in their free time than women; also, young people pay more attention to sports activities compared to subjects other intervals age; in sports (even if there are a number of common sports, the reasons underlying their practice (women prevail desire to lose weight and men wish to keep fit. The understanding that free time is becoming shorter and shorter and precious determines behavior directed towards ensuring the individual benefits: better health condition, relaxation and satisfaction.

  9. MARKETING ORGANIZATION ACTIVITY IN SPORTS ORGANIZATIONS

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    Slobodan Župljanin

    2012-09-01

    Full Text Available Sports organizations as "sui generis" organizations inevitably have to adopt the concept of marketing as a business philosophy, if you want to survive and develop its activities in the modern business environment. Supply and demand as the market, and psychological phenomena are inherent in sports organizations. Sport is a special area of human activity in which marketing has a specific place and role. Sports and sporting events are also a massive public and media events and high level of interest involving multi-million audience. Between direct and indirect participants of these events takes place appropriate communication sociological, psychological and marketing character. The aim of this paper is to present the possibility of more efficient operation of sports organizations using and adopting the marketing concept as a philosophy of action.

  10. Main components and content of sports volunteer activities

    OpenAIRE

    Петренко, Ірина

    2017-01-01

    Iryna PetrenkоPurpose: identification of the main structural components and content of sports volunteer activities. Material & Methods: used analysis of literature and documents, organizational analysis. Result: basic structural components of sports volunteer activity are defined. The content of sports volunteer activity is disclosed. Conclusion: sports volunteer activity includes the following structural components: subject, object, purpose, motivation, means, actions; subject is a sport...

  11. The Fourth Circuit Kicks a Hole through the Contact-Sport Exception to Title IX.

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    Puszczewicz, James

    2000-01-01

    Discusses a recent Fourth Circuit Court of Appeals decision that when individuals are allowed to try out for or join a team participating in a contact sport and operated for members of the other sex, then discrimination against because of their sex is prohibited by Title IX. (22 footnotes) (MLF)

  12. Active components for integrated plasmonic circuits

    DEFF Research Database (Denmark)

    Krasavin, A.V.; Bolger, P.M.; Zayats, A.V.

    2009-01-01

    We present a comprehensive study of highly efficient and compact passive and active components for integrated plasmonic circuit based on dielectric-loaded surface plasmon polariton waveguides.......We present a comprehensive study of highly efficient and compact passive and active components for integrated plasmonic circuit based on dielectric-loaded surface plasmon polariton waveguides....

  13. Active Trimming of Hybrid Integrated Circuits

    OpenAIRE

    Németh, P.; Krémer, P.

    1984-01-01

    One of the more important fields of the microelectronics industry is the manufacturing of hybrid integrated circuits.An important part of the manufacturing process is concerned with the trimming of the hybrid integratedl circuits. This article deals with the basic principles of active trimming and introduces a microprocessor controlled trimming machine. By comparing active trimming with passive techniques, it can be shown that the active system has some advantages. This article outlines these...

  14. [Sport activity after hip and knee arthroplasty].

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    Keren, Amit; Berkovich, Yaron; Berkovitch, Yaron; Soudry, Michael

    2013-11-01

    Joint arthroplasty is one of the commonest surgical procedures in orthopedic surgery. In recent years there was an increase in the number of procedures, patient satisfaction and implant survival. Originally, these operations were designed for old patients in order to relieve pain and to enable ambulation. Over the past few years, these operations have become common in younger patients which desire to return to activity, including sports activities. The importance of physical activity is a well known fact. In recent years it became clear that with the proper physical activity the outcomes of the operations are better. There are several types of arthroplasty. Many factors influence the outcome of the operation apart from the post-surgery physical activity. These factors include patient factors, surgical technique and type of arthroplasty. This review summarizes the recommendations for sports activities after hip and knee arthroplasties. These activities are evaluated according to surgeons' recommendations, stress applied on the implant and long term outcomes. The recommended sports activities after joint arthroplasties are walking, swimming and cycling. Soccer, basketball and jogging are not advised. Tennis, downhill skiing and horse riding are recommended with previous experience. There are many more sports activities that patients can participate in, and it is important that the patient discuss the different options prior to the operation. Since these operations are so common, many non-orthopedic physicians encounter these patients in their practice. They should be acquainted with the recommendations for sports activities and encourage them.

  15. TOURISM EXPENDITURE FOR SPORT ACTIVITIES: THE CASE OF MONTENEGRO

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    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.

  16. Changes in sport and physical activity behavior after participation in easily accessible sporting programs.

    NARCIS (Netherlands)

    Ooms, L.; Veenhof, C.

    2014-01-01

    Introduction: The Dutch government stimulates sport and physical activity opportunities in the neighborhood to make it easier for people to adopt a physically active lifestyle. Seven National Sports Federations (NSFs) were funded to develop easily accessible sporting programs, targeted at groups

  17. THE AUTOMATION SYSTEM OF ACCOUNTING SPORTING ACTIVITIES

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    A. A. Shpinkovski

    2016-12-01

    Full Text Available In recent years become a popular healthy lifestyle. Sport is an activity that serves the public interest by implementing educational, preparatory and communicative function, but not a constant specialty (profession person. The development of current sports, requires resources that will not only automate the work of the organizers of the competition with the information, but also improve its effectiveness. One of the progressive sports at the moment is powerlifting (power triathlon. The proposed information system is an automated workplace of the organizer. During the implementation of the information system support sports competitions were performed system design using UML diagrams. It is possible to understand the tasks that must be done in the implementation of the program. The program is organized so that you can quickly and simply add all data about upcoming competitions: the name, location, date, the composition of the referee. After receiving information about the athletes, coaches, sports clubs, to make an application for participation in the competition. Also, the organizer has the ability to view statistics about the coaches, referees, participants, based on the information entered into the database earlier. A detailed user guide program. A functional testing and usability. Recommendations for further development of the software product.

  18. [Historical compendium of physical activity and sport].

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    Rodríguez Rodríguez, Luis Pablo

    2004-01-01

    The Historical Compendium of Physical Activity and Sport analyses, from a scientific perspective, past events in the array of tasks or manoeuvres comprising body movement, in a setting of human liberty and creative capacity. Sport is examined as a result of the evolution of games and in a context of these games. This book contemplates sports, whose selection criteria have included specific features of their individual or team qualities, or combat or opposition characteristics, or those related to their artistic features or to instrumentation or adaptation, or other connotations. 1st authors are 36 professors, from the universities of Barcelona, (Central), Granada, Jaen, Las Palmas de Gran Canaria, León, Madrid (Complutense), Málaga, Murcia, Oviedo, País Vasco, Salamanca, Valencia and Zaragoza.

  19. Active fantasy sports: rationale and feasibility of leveraging online fantasy sports to promote physical activity.

    Science.gov (United States)

    Moller, Arlen C; Majewski, Sara; Standish, Melanie; Agarwal, Pooja; Podowski, Aleksandra; Carson, Rebecca; Eyesus, Biruk; Shah, Aakash; Schneider, Kristin L

    2014-11-25

    The popularity of active video games (AVGs) has skyrocketed over the last decade. However, research suggests that the most popular AVGs, which rely on synchronous integration between players' activity and game features, fail to promote physical activity outside of the game or for extended periods of engagement. This limitation has led researchers to consider AVGs that involve asynchronous integration of players' ongoing physical activity with game features. Rather than build an AVG de novo, we selected an established sedentary video game uniquely well suited for the incorporation of asynchronous activity: online fantasy sports. The primary aim of this study was to explore the feasibility of a new asynchronous AVG-active fantasy sports-designed to promote physical activity. We conducted two pilot studies of an active fantasy sports game designed to promote physical activity. Participants wore a low cost triaxial accelerometer and participated in an online fantasy baseball (Study 1, n=9, 13-weeks) or fantasy basketball (Study 2, n=10, 17-weeks) league. Privileges within the game were made contingent on meeting weekly physical activity goals (eg, averaging 10,000 steps/day). Across the two studies, the feasibility of integrating physical activity contingent features and privileges into online fantasy sports games was supported. Participants found the active fantasy sports game enjoyable, as or more enjoyable than traditional (sedentary) online fantasy sports (Study 1: t8=4.43, Pgame was cited as a key motivating factor for increasing physical activity. Preliminary evidence supports potential for the active fantasy sports system as a sustainable and scalable intervention for promoting adult physical activity.

  20. Does Participation in Youth Sport Influence Sport and Physical Activity in Young Adulthood?

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    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…

  1. Teaching Sociology of Sport: An Active Learning Approach.

    Science.gov (United States)

    Blinde, Elaine M.

    1995-01-01

    Asserts that sport is a pervasive aspect of society. Presents and describes four learning activities designed to help students understand the significance of sport as a social institution. Maintains that, while the activities focus on the institution of sport, they can be used in a variety of sociology courses. (CFR)

  2. Accessibility of Sporting Activities for Mainstreamed Students with ...

    African Journals Online (AJOL)

    This study investigated the accessibility of sporting activities for mainstreamed students with visual impairment in Bulawayo Metropolitan Province. The purpose of the study was to identify preparedness of institutions and sports clubs in catering for sporting activities for persons with visual impairment. The study also sought ...

  3. Involvement in sports clubs and informal sport activities of primary and secondary school children in Liechtenstein

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    Jürgen Kühnis

    2016-04-01

    Full Text Available Sport involvement among children and adolescents has been a central field of research in sport science since years. This paper documents the participation of 11- to 15-year-olds in sport clubs and informal sport activities in Liechtenstein and examines possible gender- and age-specific differences. The analysis is based on four cross-sectional studies from 2004 to 2015 and includes the data of 1’262 children in primary (5th grade and secondary (7th and 9th grades school. According to our findings sports and exercise are considered to be one of the main leisure-time activities for all school levels (irrespective of gender. The percentage of fully sport-abstinent adolescents by 11- and 13-year-olds is about 5 %; by 15-year-olds is around 10 %. The culmination of sports club membership (with current 84.7 % appears to be at the age of 11 (5th grade. After the switch to secondary school the sports club commitment tends to decrease, while the high attendance of the informal sport activities (>85 % shows relatively stable age development. In contrast to other child and youth studies, our data indicates a levelling tendency and dissolution of classic gender differences not only in sports club commitment but also in informal sports among girls and boys.

  4. Crime prevention through sports and physical activity

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    Dimovski Darko

    2015-01-01

    Full Text Available Starting from the definition of sport, the author has presented the possibilities its application in the prevention of crime and delinquency. In that context, the author analyzes the rate of juvenile delinquency in specific countries, such as Canada, and underlines the fact that the classical criminal measures do not give adequate results. The author points out that it is, therefore, necessary to apply some other preventive measures, which embody the application of sports and physical activity. The author provides examples of good practice in the states which has achieved the best results in the development of such programs. Finally, in view of the increasing number of reported criminal offences committed by both juveniles and adults, the author highlights the need for developing such programs in the Republic of Serbia.

  5. Sport and physical activity for mental health

    CERN Document Server

    Carless, David

    2010-01-01

    With approximately 1 in 6 adults likely to experience a significant mental health problem at any one time (Office for National Statistics), research into effective interventions has never been more important. During the past decade there has been an increasing interest in the role that sport and physical activity can play in the treatment of mental health problems, and in mental health promotion. The benefits resulting from physiological changes during exercise are well documented, including improvement in mood and control of anxiety and depression. Research also suggests that socio-cultural a

  6. THE ATTITUDES TOWARD SPORT ADVERTISING AMONG THE QUESTION HOW OFTEN CONSUMERS PARTICIPATE IN SPORTS ACTIVITIES

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    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

  7. ATTITUDES TOWARD PHYSICAL ACTIVITY AND SPORT

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    José Alfredo Balderrama-Ruedas

    2014-07-01

    Full Text Available One of the main problems of this country is currently sedentary carrying Mexicans, top level global envelope weight and obesity, as well as problems of prosocial behavior and crime, adding the poor academic performance in the education sector, this research seeks to know the attitudes of students toward physical activation and sport within their training and performance as future teachers.This research was conducted under the qualitative approach, using the ethnographic method, using observation technique, and the journal of field and survey instruments collection, to interpret the data obtained to the results applied to the seven phases of María Mercedes Gagneten (1999.Within the conclusions one can mention the change of attitude by the students towards this type of activities, from negative attitudes to positive, detected the soccer, volleyball and basketball as the most widely practised sports by students as well as swimming as one of the most reputable. We analysed what could be the possible causes by which students not carried out these activities, the lack of information, culture and aspects of the internal organisation of the Student Council as direct factors.

  8. Main components and content of sports volunteer activities

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    Iryna Petrenkо

    2017-12-01

    Full Text Available Purpose: identification of the main structural components and content of sports volunteer activities. Material & Methods: used analysis of literature and documents, organizational analysis. Result: basic structural components of sports volunteer activity are defined. The content of sports volunteer activity is disclosed. Conclusion: sports volunteer activity includes the following structural components: subject, object, purpose, motivation, means, actions; subject is a sports volunteer, the object is a sports competition, the goal is to provide gratuitous assistance for a quality competition, the means are the special knowledge, skills, communication abilities of sports volunteers, actions should be understood as types of volunteer activities and functions that volunteers perform during the preparation and conduct of competitions. Main types of sports volunteer activity are: 1 organizational; 2 judiciary; 3 coaching; 4 legal; 5 medical. Functions that volunteers perform in the competition system are general and special. Content of the functions of sports volunteering depends on the specifics of the sports, the rank of the competition, the specifics of the competition for people with special needs.

  9. [Factors conditioning taking up sport activity by disabled people].

    Science.gov (United States)

    Plinta, Ryszard; Sobiecka, Joanna

    2002-01-01

    The aim of the study was to answer the following questions: What factors determine that disabled people take up systematic sport activity or should make such a decision? What reasons are able to eliminate the handicapped from process of regular going in for sport? Three groups of men participated. The group of disabled sportsmen included 39 subjects, the group of non-active disabled people 36 subjects and the group of able-bodied students 45 subjects. All the involved people answered the questions of the questionnaire, which concerned factors associated with sport activity of the handicapped and their socio-demographic characteristics, among other things. The opportunity of improvement of the health status is the main advantage of the sport for disabled people (53%). The chance of self-testing and sport competition was pointed out by 47% of subjects. The most common reason for taking up sport activity was sport passion (over 50%). The others were: possibility of creating new contacts with people, improvement of the physical condition, chance of self-testing and passing free time (23%). The lack of free time was the factor eliminating from sport activity in the second group (28%). The other problem was the shortage of appropriate clubs, equipment, infrastructure etc. (almost 25%). Students concluded that sport for disabled people aims to improve the mental condition mainly (42%). Quite similar percentage of the group (38%) didn't see any reason that was able to exclude the handicapped from goingin for sport. (1) Not only does active going in for sport improve the physical condition of the handicapped but strengthen them psychically as well. (2) The lack of sport activity in disabled people is to a high degree a result of low number of sport clubs, organisations, buildings as well as presence of architectural barriers.

  10. Sudden Cardiac Death During Sports Activities in the General Population.

    Science.gov (United States)

    Narayanan, Kumar; Bougouin, Wulfran; Sharifzadehgan, Ardalan; Waldmann, Victor; Karam, Nicole; Marijon, Eloi; Jouven, Xavier

    2017-12-01

    Regular exercise reduces cardiovascular and overall mortality. Participation in sports is an important determinant of cardiovascular health and fitness. Regular sports activity is associated with a smaller risk of sudden cardiac death (SCD). However, there is a small risk of sports-related SCD. Sports-related SCD accounts for approximately 5% of total SCD. SCD among athletes comprises only a fraction of all sports-related SCD. Sport-related SCD has a male predominance and an average age of affliction of 45 to 50 years. Survival is better than for other SCD. This review summarizes links between sports and SCD and discusses current knowledge and controversies. Copyright © 2017 Elsevier Inc. All rights reserved.

  11. Are all sport activities equal? A systematic review of how youth psychosocial experiences vary across differing sport activities.

    Science.gov (United States)

    Evans, M Blair; Allan, Veronica; Erickson, Karl; Martin, Luc J; Budziszewski, Ross; Côté, Jean

    2017-02-01

    Models of sport development often support the assumption that young athletes' psychosocial experiences differ as a result of seemingly minor variations in how their sport activities are designed (eg, participating in team or individual sport; sampling many sports or specialising at an early age). This review was conducted to systematically search sport literature and explore how the design of sport activities relates to psychosocial outcomes. Systematic search, followed by data extraction and synthesis. The Preferred Reporting Items for Systematic reviews and Meta-Analyses guidelines were applied and a coding sheet was used to extract article information and code for risk of bias. Academic databases and manual search of peer-reviewed journals. Search criteria determined eligibility primarily based on the sample (eg, ages 7 through 17 years) and study design (eg, measured psychosocial constructs). 35 studies were located and were classified within three categories: (1) sport types, (2) sport settings, and (3) individual patterns of sport involvement. These studies represented a wide range of scores when assessed for risk of bias and involved an array of psychosocial constructs, with the most prevalent investigations predicting outcomes such as youth development, self-esteem and depression by comparing (1) team or individual sport participants and (2) youth with varying amounts of sport involvement. As variations in sport activities impact youth sport experiences, it is vital for researchers to carefully describe and study these factors, while practitioners may use the current findings when designing youth sport programmes. 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/.

  12. Acute type a aortic dissection associated with a sporting activity.

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    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.

  13. Sports activities enhance the prevalence of rhinitis symptoms in schoolchildren.

    Science.gov (United States)

    Kusunoki, Takashi; Takeuchi, Jiro; Morimoto, Takeshi; Sakuma, Mio; Mukaida, Kumiko; Yasumi, Takahiro; Nishikomori, Ryuta; Heike, Toshio

    2016-03-01

    To evaluate the association between sports activities and allergic symptoms, especially rhinitis, among schoolchildren. This longitudinal survey of schoolchildren collected data from questionnaires regarding allergic symptoms based on the International Study of Asthma and Allergies in Childhood (ISAAC) program and sports participation that were distributed to the parents of children at all 12 public primary schools in Ohmi-Hachiman City, Shiga Prefecture, Japan. Data were collected annually from 2011 until 2014, when the children reached 10 years of age. Blood samples were obtained in 2014, and the levels of immunoglobulin (Ig)E specific to four inhalant allergens were measured. Data from 558 children were analyzed. At 10 years of age, prevalence of asthma and eczema did not differ significantly, while rhinitis was significantly higher (p = 0.009) among children who participated in sports. Prevalence of rhinitis increased as the frequency or duration of sports participation increased (p sports (p = 0.03). Among those who participated in continuous sports activities, the prevalence of rhinitis was significantly higher with prolonged eczema (p = 0.006). Sports activities did not increase sensitization to inhalant allergens. Sports activities enhance the prevalence of rhinitis in schoolchildren. Prolonged eczema, together with sports participation, further promotes the symptoms. The mechanisms of these novel findings warrant further investigation. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  14. Effects of sports participation on psychiatric symptoms and brain activations during sports observation in schizophrenia.

    Science.gov (United States)

    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.

  15. 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.

  16. 78 FR 68814 - Subzone 114F, Authorization of Production Activity, Easton-Bell Sports, Inc., (Sports Equipment...

    Science.gov (United States)

    2013-11-15

    ... DEPARTMENT OF COMMERCE Foreign-Trade Zones Board [B-74-2013] Subzone 114F, Authorization of Production Activity, Easton-Bell Sports, Inc., (Sports Equipment), Rantoul, Illinois On June 27, 2013, Easton-Bell Sports, Inc. submitted a notification of proposed production activity to the Foreign-Trade Zones...

  17. An Activity for Demonstrating the Concept of a Neural Circuit

    Science.gov (United States)

    Kreiner, David S.

    2012-01-01

    College students in two sections of a general psychology course participated in a demonstration of a simple neural circuit. The activity was based on a neural circuit that Jeffress proposed for localizing sounds. Students in one section responded to a questionnaire prior to participating in the activity, while students in the other section…

  18. Physical activity and sport preferences of West Bohemian adolescents

    Directory of Open Access Journals (Sweden)

    Petr Valach

    2017-06-01

    Full Text Available Background: Regular physical activity is the crucial factor in treating lifestyle diseases. The age of adolescence is considered as the important period of person's life for creation and further maintaining healthy lifestyle habits. We assume that the level of physical activities of young people could be influenced by the possibilities to perform the preferred sporting activities. Objective: The aim of the presented study was to estimate the total amount of performed physical activity and the structure of sport preferences in West Bohemian adolescents. Further to find out the existence of relationships between preferred sport branches and composition of weekly physical activities of girls and boys. Methods: The research was conducted at five selected secondary schools of the Pilsen region, under the total participation of 382 boys and 529 girls. The level of physical activity (PA and sporting preferences was assessed by means of the IPAQ questionnaire and questionnaire of sports preferences, with the use of the internet system INDARES. For the statistical processing of the gained data, the Kruskal-Wallis ANOVA test, crosstabulation tables, and Spearman correlation analysis were used. Results: The results showed that the preference of fitness activities is associated with a higher level of PA in spare time of boys (p = .006, and with intensive PA of boys (p = .014 and girls (p = .044, compared to those, who do not prefer these activities. In addition, in case of boys, we have found statistically significant correlations (p = .022 between the preference of team sports and PA at school. 51.8% of boys and 37.7% of girls, who prefer fitness activities, comply with the recommendation of at least 3 × 20 minutes of intensive PA during one week (out of those, who do not prefer, only 30.5% of boys and 18.1% of girls. Individual sports (swimming, cycling, and downhill skiing are the main physical activities preferred by

  19. Classification of team sport activities using a single wearable tracking device.

    Science.gov (United States)

    Wundersitz, Daniel W T; Josman, Casey; Gupta, Ritu; Netto, Kevin J; Gastin, Paul B; Robertson, Sam

    2015-11-26

    Wearable tracking devices incorporating accelerometers and gyroscopes are increasingly being used for activity analysis in sports. However, minimal research exists relating to their ability to classify common activities. The purpose of this study was to determine whether data obtained from a single wearable tracking device can be used to classify team sport-related activities. Seventy-six non-elite sporting participants were tested during a simulated team sport circuit (involving stationary, walking, jogging, running, changing direction, counter-movement jumping, jumping for distance and tackling activities) in a laboratory setting. A MinimaxX S4 wearable tracking device was worn below the neck, in-line and dorsal to the first to fifth thoracic vertebrae of the spine, with tri-axial accelerometer and gyroscope data collected at 100Hz. Multiple time domain, frequency domain and custom features were extracted from each sensor using 0.5, 1.0, and 1.5s movement capture durations. Features were further screened using a combination of ANOVA and Lasso methods. Relevant features were used to classify the eight activities performed using the Random Forest (RF), Support Vector Machine (SVM) and Logistic Model Tree (LMT) algorithms. The LMT (79-92% classification accuracy) outperformed RF (32-43%) and SVM algorithms (27-40%), obtaining strongest performance using the full model (accelerometer and gyroscope inputs). Processing time can be reduced through feature selection methods (range 1.5-30.2%), however a trade-off exists between classification accuracy and processing time. Movement capture duration also had little impact on classification accuracy or processing time. In sporting scenarios where wearable tracking devices are employed, it is both possible and feasible to accurately classify team sport-related activities. Copyright © 2015 Elsevier Ltd. All rights reserved.

  20. Psychological impact of sports activity in spinal cord injury patients.

    Science.gov (United States)

    Gioia, M C; Cerasa, A; Di Lucente, L; Brunelli, S; Castellano, V; Traballesi, M

    2006-12-01

    To investigate whether sports activity is associated with better psychological profiles in patients with spinal cord injury (SCI) and to evaluate the effect of demographic factors on psychological benefits. The State-Trait Anxiety Inventory, Form X2 (STAI-X2), the Eysenck Personality Questionnaire for extraversion (EPQ-R (E)) and the questionnaire for depression (QD) were administered in a cross-sectional study of 137 males with spinal cord injury including 52 tetraplegics and 85 paraplegics. The subjects were divided into two groups according to sports activity participation (high frequency vs no sports participation). Moreover, multiple regression analysis was adopted to investigate the influence of demographic variables, such as age, educational level, occupational status and marital status, on psychological variables. Analysis of variance revealed significant differences among the groups for anxiety (STAI-X2), extraversion (EPQ-R (E)) and depression (QD). In particular, SCI patients who did not practice sports showed higher anxiety and depression scores and lower extraversion scores than sports participants. In addition, with respect to the paraplegics, the tetraplegic group showed the lowest depression scores. Following multiple regression analysis, only the sports activity factor remained as an independent factor of anxiety scores. These findings demonstrate that sports activity is associated with better psychological status in SCI patients, irrespective of tetraplegia and paraplegia, and that psychological benefits are not emphasized by demographic factors.

  1. Situation determinanty of display of aggression in sporting activity

    Directory of Open Access Journals (Sweden)

    Maystruk V.V.

    2010-02-01

    Full Text Available Situation pre-conditions of development of aggression are considered. Aggression within the limits of rules of competitions is the important element of successful activity of sportsman. Aspiring to victory requires a sporting aggressiveness. Sport is a comfortable model for the scientific experimental study of the phenomenon of aggression. Existing is studied типологии of aggressiveness in sporting activity. A reactive and instrumental aggressiveness is selected. Primary objective of first consists in causing of physical or psychological trauma. A friend is pursued by a purpose is a receipt of victory and not causing of harm to the competitor.

  2. 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...

  3. Sports activity and risk of type 2 diabetes in Chinese.

    Science.gov (United States)

    Chien, Kuo-Liong; Chen, Ming-Fong; Hsu, Hsiu-Ching; Su, Ta-Chen; Lee, Yuan-Teh

    2009-06-01

    An association between physical inactivity and obesity risk has been established. However, the relationship between sports activity and the risk of diabetes among Chinese populations is still unclear. We prospectively investigated the association between sports activity and incidence of type 2 diabetes in a Chinese population. Habitual physical activity in the presumed last year was obtained from a questionnaire developed by Baecke and colleagues. During a median 9.02-year follow-up period among the 1936 participants with complete questionnaire data, 312 participants developed diabetes. After adjusting for age, gender and body mass index, the relative risk (RR) of diabetes according to quartiles of sports activity were 0.86, 0.71 and 0.72 (95% Confidence Interval [CI], 0.52-0.99, P for trend, 0.048). Participants with the highest quartiles of sports activity had a significantly lower risk than the participants with the lowest quartiles among the obese group (multivariate RR, 0.61, 95% CI, 0.41-0.92, P for trend=0.018). Furthermore, the RRs of diabetes were 2.24 (95% CI, 1.58-3.19) for participants who were obese and sedentary, compared with those who were of a healthy weight and participated actively in sports. The findings suggest a significant inverse association between sports activity and incidence of type 2 diabetes in middle to older-aged Chinese individuals.

  4. Sports participation, physical activity, and health in the European regions.

    Science.gov (United States)

    Lera-López, Fernando; Marco, Rocio

    2018-08-01

    In a context of stagnation of the level of health-enhancing physical activity in Europe, this study examines the geographical stratification of sports participation and physical activity (PA) at the regional level in 28 European countries. While previous research has focused on the national approach, this study considers the regional level across 208 European regions. Individual survey data from the Eurobarometer 80.2 is combined with a regional-level approach to the 208 regions to quantify sports participation and PA at the regional level. The results show important differences and a geographical stratification of sports participation and PA among the European regions, albeit following different patterns. In particular, a north-south gap is identified in terms of PA rates and an east-west gap is detected in terms of sports participation levels. Applying the cluster technique, a taxonomy of four different European regions is developed considering both types of indicators. Finally, the existence of sports spatial spillovers among regions is verified, obtaining a positive autocorrelation among neighbouring regions for being involved in PA and sporting activities. The results may have significant implications in terms of policy measures to improve health through PA and sports participation at the regional level in Europe.

  5. Investigation of Mountaineering and Outdoor Sports Clubs with Activity Areas

    Directory of Open Access Journals (Sweden)

    Burak GÜRER

    2016-12-01

    Full Text Available Current study aims to identify activity areas of mountaineering and outdoor sports clubs in Turkey that organize activities regularly. Universe of the study was composed of mountaineering and outdoor sports clubs that were active between the dates of 11 March 2012 and 5 January 2013. This study and the sample included 49 active outdoor sports clubs that could be reached in the region. Data were collected via surveys. Obtained data were analyzed and interpreted with the help of statistical package program (SPSS 16.0. Frequencies and percentage distributions were provided. Criteria for the provision of outdoor sports activities in clubs include requests from members and geographical conditions of the area. It is observed that those clubs provide outdoor walks approximately for 21-40 members. There are clubs without trainers. Clubs provide mountaineering and rock climbing activities the most. Aegean and Marmara Regions are more active compared to other regions. In general, most of the clubs are active in areas such as mountaineering, rock climbing and outdoor walks. It is suggested that local administrations and federations support outdoor sports clubs

  6. 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.

  7. Sport facility proximity and physical activity: Results from the Study of Community Sports in China.

    Science.gov (United States)

    Guo, Xiujin; Dai, Jian; Xun, Pengcheng; Jamieson, Lynn M; He, Ka

    2015-01-01

    Increased sport facility proximity is associated with higher likelihood of meeting physical activity (PA) recommendations in western studies, but it is uncertain whether the findings can be generalized to the Chinese population. From September 2012 to December 2012, 3926 participants drawn from China using a multi-stage sampling strategy were invited to participate in the Study of Community Sports in China. Participants' demographics, commuting time to the nearest sport facility and PA levels were assessed. Among 3926 participants included (51.2% female) in the final analysis, 878 (22.4%) of them met the PA recommendation. Participants who spent ≥30 minutes in commuting time had 80% odds [odds ratio (OR): 0.80 (95% CI: 0.65-0.98)] of meeting the PA recommendation compared to those who spent less than 10 minutes. For every 10-minute increment in commuting time, the odds reduced by 6% [OR = 0.94 (0.88-0.99)]. The observed associations were not appreciably modified by age, gender or education level. In this cross-sectional community-based study, we found that residents in China were less likely to meet the PA recommendation if they needed more commuting time to the nearest sport facility. Increasing sport facility proximity may be effective in improving the PA levels in the Chinese population.

  8. Sport stacking activities in school children's motor skill development.

    Science.gov (United States)

    Li, Yuhua; Coleman, Diane; Ransdell, Mary; Coleman, Lyndsie; Irwin, Carol

    2011-10-01

    This study examined the impact of a 12-wk. sport stacking intervention on reaction time (RT), manual dexterity, and hand-eye coordination in elementary school-aged children. 80 Grade 2 students participated in a 15-min. sport stacking practice session every school day for 12 wk., and were tested on psychomotor performance improvement. Tests for choice RT, manual dexterity, and photoelectric rotary pursuit tracking were conducted pre- and post-intervention for both experimental group (n = 36) and the controls (n = 44) who did no sport stacking. Students who had the intervention showed a greater improvement in two-choice RT. No other group difference was found. Such sport stacking activities may facilitate children's central processing and perceptual-motor integration.

  9. Managing patients with neurologic disorders who participate in sports activities.

    Science.gov (United States)

    Crutchfield, Kevin E

    2014-12-01

    Patients with neurologic conditions have been discouraged from participating in organized sports because of theoretical detrimental effects of these activities to their underlying conditions. The purpose of this article is to review known risks associated with three specific clinical conditions most commonly encountered in a sports neurology clinic (epilepsy, migraines, and multiple sclerosis and to add to the neurologist's toolkit suggested interventions regarding management of athletes with these disorders. Increased participation in sports and athletics has positive benefits for patients with neurologic conditions and can be safely integrated into the lives of these patients with proper supervision from their treating neurologists. Patients with neurologic conditions can and should be encouraged to participate in organized sports as a method of maintaining their overall fitness, improving their overall level of function, and reaping the physical and psychological benefits that athletic competition has to offer.

  10. Designing Technology for Active Spectator Experiences at Sporting Events

    DEFF Research Database (Denmark)

    Veerasawmy, Rune; Ludvigsen, Martin

    2010-01-01

    This paper explores the active spectator experience at sporting events, by presenting and reflecting upon a design experiment carried out at a number of football1 events. The initial hypothesis of the design process, leading to the design experiment has been that the spectator experience is not m......This paper explores the active spectator experience at sporting events, by presenting and reflecting upon a design experiment carried out at a number of football1 events. The initial hypothesis of the design process, leading to the design experiment has been that the spectator experience...... is not merely an experience of receiving and consuming entertainment. It is also heavily reliant on the active participation of the spectator in creating the atmosphere of the entire event. The BannerBattle experiment provides interactive technology in sport arenas with a form of interaction based on existing...

  11. The Psychological and Social Benefits of Sport and Physical Activity.

    Science.gov (United States)

    Wankel, Leonard M.; Berger, Bonnie G.

    1990-01-01

    An overview is given of research evidence pertaining to the contribution of sport and physical activity to personal enjoyment, growth, social integration, and social change. It is important to identify the prerequisite activity, leadership, organizational, and environmental conditions for facilitating positive outcomes. (JD)

  12. Physical Activity & Sport for the Secondary School Student. Fifth Edition.

    Science.gov (United States)

    Dougherty, Neil J., Ed.

    This collection of papers offers a comprehensive text about contemporary physical activities and sports forms. It provides students with an overview of the various physical activities, skill technique required, safety, scoring, rules and etiquette, strategies, equipment, and related terminology. The 26 papers are: (1) "Physical Fitness"…

  13. Health literacy and participation in sports club activities among adolescents.

    Science.gov (United States)

    Paakkari, Leena; Kokko, Sami; Villberg, Jari; Paakkari, Olli; Tynjälä, Jorma

    2017-12-01

    The aim of this research was to compare the levels of perceived health literacy among adolescents who do or do not participate in sports club activities. Organized sport club activities reach a high proportion of adolescents, and have the potential to contribute to the development of their health literacy. The cross-sectional data on health literacy among school children in Finland (aged 13 and 15, n=3852) were measured, as a part of the Health Behaviour in School-Aged Children (HBSC) study, using the Health Literacy for School-aged Children (HLSAC) instrument. Sports club participation and its association with health literacy were examined in relation to age, gender, family affluence, school achievement, and physical activity. The statistical analyses included cross-tabulation and the multilevel mixed-effects logistic regression analyses. Perceived health literacy was higher among adolescents who participated in sports club activities. This conclusion was valid for boys and girls, for both age groups, among those who were physically active 6-7 days a week, had at least moderate school achievement, and those who belonged to the middle or high affluence families. From the health literacy perspective, participation in sports club activities was especially beneficial for those having low or moderate school achievement level. The sports club setting may work towards equalizing health literacy differences related to school achievement. However, the clubs should ensure that access is available to as many adolescents as possible; by this means they may spread beneficial influences, supporting the development of health literacy among broader population groups.

  14. Participation Motivation and Student's Physical Activity among Sport Students in Three Countries.

    Science.gov (United States)

    Kondric, Miran; Sindik, Joško; Furjan-Mandic, Gordana; Schiefler, Bernd

    2013-01-01

    The main aim of this study was to examine the differences in motivation to participate in sport activities among sports students from three different countries. On a sample of 390 sports students from Slovenia, Croatia and Germany we studied what motivates an interest in being sports active. The sample was stratified across the choice to attend table tennis lessons at all three institutions and all students have completed the Participation Motivation Questionnaire (PMQ). The results revealed that the latent structure of the types of sports students' motives consisted of six factors (sport action with friend, popularity, fitness & health, social status, sports events, relaxation through sports). We also found significant sex differences in motivation to participate in sport activities for all sports students from the three different countries. We did not find relevant age-based differences among the students, and this is the only initial hypothesis that we can reject. Key pointsThe potential implications of the result can be in better understanding the relationship between different motivational orientations - in particular, extrinsic motivation - and sport motivation among school-aged individuals.In the context of Self Determination Theory, students can be encouraged in developing more autonomous orientations for sport activity, rather than controlled and impersonal, especially in certain countries.Significant factors of differences have been found in motivation to participate in sport activities among sports students from three different countries and also some significant sex differences have been found in motivation to participate in sport activities for all sports students.

  15. Analysis of an application degree of marketing in organization and management activity of youth sports schools

    Directory of Open Access Journals (Sweden)

    N.V. Sereda

    2013-04-01

    Full Text Available Disclosed aspects of the marketing approach in the activities of youth sports schools. The degree of use of marketing in the organization and management of youth sports schools. Identified constraints and the possible consequences of the use of marketing in youth sports schools. The study involved 127 employees with 15 youth sports schools. The respondents were the director and deputy instructor methodists that senior coaches offices youth sports schools. It is certain that in their professional activities only 36.0% of workers in youth sports schools use marketing is the marketing research, 73.2% of respondents believe that the use of marketing to promote the image of youth sports schools. The absence of a marketing specialist in the management bodies of physical education and sport is one of the main problems for the efficient functioning of the market of sports schools sports and sports services.

  16. Measurements of the Effects of Smoke on Active Circuits

    International Nuclear Information System (INIS)

    Tanaka, T.J.

    1999-01-01

    Smoke has long been recognized as the most common source of fire damage to electrical equipment; however, most failures have been analyzed after the fire was out and the smoke vented. The effects caused while the smoke is still in the air have not been explored. Such effects have implications for new digital equipment being installed in nuclear reactors. The U.S. Nuclear Regulatory Commission is sponsoring work to determine the impact of smoke on digital instrumentation and control. As part of this program, Sandia National Laboratories has tested simple active circuits to determine how smoke affects them. These tests included the study of three possible failure modes on a functional board: (1) circuit bridging, (2) corrosion (metal loss), and (3) induction of stray capacitance. The performance of nine different circuits was measured continuously on bare and conformably coated boards during smoke exposures lasting 1 hour each and continued for 24 hours after the exposure started. The circuit that was most affected by smoke (100% change in measured values) was the one most sensitive to circuit bridging. Its high impedance (50 MOmega) was shorted during the exposure, but in some cases recovered after the smoke was vented. The other two failure modes, corrosion and induced stray capacitance, caused little change in the function of the circuits. The smoke permanently increased resistance of the circuit tested for corrosion, implying that the cent acts were corroded. However, the change was very small (< 2%). The stray-capacitance test circuit showed very little change after a smoke exposure in either the short or long term. The results of the tests suggest that conformal coatings and type of circuit are major considerations when designing digital circuitry to be used in critical control systems

  17. Measurements of the effects of smoke on active circuits

    International Nuclear Information System (INIS)

    Tanaka, T.J.

    1998-01-01

    Smoke has long been recognized as the most common source of fire damage to electrical equipment; however, most failures have been analyzed after the fire was out and the smoke vented. The effects caused while the smoke is still in the air have not been explored. Such effects have implications for new digital equipment being installed in nuclear reactors. The US Nuclear Regulatory Commission is sponsoring work to determine the impact of smoke on digital instrumentation and control. As part of this program, Sandia National Laboratories has tested simple active circuits to determine how smoke affects them. These tests included the study of three possible failure modes on a functional board: (1) circuit bridging, (2) corrosion (metal loss), and (3) induction of stray capacitance. The performance of nine different circuits was measured continuously on bare and conformally coated boards during smoke exposures lasting 1 hour each and continued for 24 hours after the exposure started. The circuit that was most affected by smoke (100% change in measured values) was the one most sensitive to circuit bridging. Its high impedance (50 Mohm) was shorted during the exposure, but in some cases recovered after the smoke was vented. The other two failure modes, corrosion and induced stray capacitance, caused little change in the function of the circuits. The smoke permanently increased resistance of the circuit tested for corrosion, implying that the contacts were corroded. However, the change was very small (< 2%). The stray capacitance test circuit showed very little change after a smoke exposure in either the short or long term. The results of the tests suggest that conformal coatings and type of circuit are major considerations when designing digital circuitry to be used in critical control systems

  18. NASA SPoRT GOES-R Proving Ground Activities

    Science.gov (United States)

    Stano, Geoffrey T.; Fuell, Kevin K.; Jedloec, Gary J.

    2010-01-01

    The NASA Short-term Prediction Research and Transition (SPoRT) program is a partner with the GOES-R Proving Ground (PG) helping prepare forecasters understand the unique products to come from the GOES-R instrument suite. SPoRT is working collaboratively with other members of the GOES-R PG team and Algorithm Working Group (AWG) scientists to develop and disseminate a suite of proxy products that address specific forecast problems for the WFOs, Regional and National Support Centers, and other NOAA users. These products draw on SPoRT s expertise with the transition and evaluation of products into operations from the MODIS instrument and the North Alabama Lightning Mapping Array (NALMA). The MODIS instrument serves as an excellent proxy for the Advanced Baseline Imager (ABI) that will be aboard GOES-R. SPoRT has transitioned and evaluated several multi-channel MODIS products. The true and false color products are being used in natural hazard detection by several SPoRT partners to provide better observation of land features, such as fires, smoke plumes, and snow cover. Additionally, many of SPoRT s partners are coastal offices and already benefit from the MODIS sea surface temperature composite. This, along with other surface feature observations will be developed into ABI proxy products for diagnostic use in the forecast process as well as assimilation into forecast models. In addition to the MODIS instrument, the NALMA has proven very valuable to WFOs with access to these total lightning data. These data provide situational awareness and enhanced warning decision making to improve lead times for severe thunderstorm and tornado warnings. One effort by SPoRT scientists includes a lightning threat product to create short-term model forecasts of lightning activity. Additionally, SPoRT is working with the AWG to create GLM proxy data from several of the ground based total lightning networks, such as the NALMA. The evaluation will focus on the vastly improved spatial

  19. Diet Activity Characteristic of Large-scale Sports Events Based on HACCP Management Model

    OpenAIRE

    Xiao-Feng Su; Li Guo; Li-Hua Gao; Chang-Zhuan Shao

    2015-01-01

    The study proposed major sports events dietary management based on "HACCP" management model. According to the characteristic of major sports events catering activities. Major sports events are not just showcase level of competitive sports activities which have become comprehensive special events including social, political, economic, cultural and other factors, complex. Sporting events conferred reach more diverse goals and objectives of economic, political, cultural, technological and other ...

  20. Benefits of sport activities for people with cerebral pa/sy in adolescence and maturity age

    OpenAIRE

    Jamrichová, Jana

    2012-01-01

    Possibilities and benefits of sport activities for people with cerebral palsy in Czech republic The aim of this work is to determine what are the possibilities and benefits of sports for people with cerebral palsy in the Czech Republic. To detect what kinds of different sports for people with disabilities are offered, as well as to find out various sports clubs, associations and organizations that allow these activities. Another aim of my work is to describe the history of sports for people w...

  1. Coaches' Perceptions of French Sports Clubs: Health-Promotion Activities, Aims and Coach Motivation

    Science.gov (United States)

    Van Hoye, Aurélie; Sarrazin, Philippe; Heuzé, Jean-Philippe; Kokko, Sami

    2015-01-01

    Background: Given the benefits of participating in sport, sports clubs have been recognised as health promoting organizations. To examine health-promotion activities in Finnish sports clubs, Kokko et al. developed a set of standards for health-promoting sports clubs (HPSC). Objective: The present study extends this line of research, by (1)…

  2. Sexual Activity before Sports Competition: A Systematic Review

    Science.gov (United States)

    Stefani, Laura; Galanti, Giorgio; Padulo, Johnny; Bragazzi, Nicola L.; Maffulli, Nicola

    2016-01-01

    Sexual activity before competition has been considered as a possible cause for reduced performance since ancient Greece and Rome. Recently, the hypothesis that optimal sport performance could be influenced by a variety of factors including sexual activity before competition has been investigated. However, few scientific data are available, with the exception of anecdotal reports of individual experiences. The present systematic review focused on the current scientific evidence on the effects of sexual activity on sport performance regardless of sport type. Data were obtained following the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines, using PubMed/MEDLINE, ISI/Web of Science, the Cochrane Collaboration Database, Cochrane Library, Evidence Database (PEDro), Evidence Based Medicine (EBM) Search review, National Guidelines, ProQuest, and Scopus, all searched from inception further, to broaden the search, no time filter nor language restriction have been applied. Also, the gray literature was mined using Google Scholar. Only relevant scientific articles reporting outcomes of athletic performance after sexual activity were considered. The impact of sexual activity before a sport competition is still unclear, but most studies generally seem to exclude a direct impact of sexual activity on athletic aerobic and strength performance. The most important aspect seems to be the interval from the time of the sports competition that affects negatively the performance if it is shorter than 2 h. There are possible negative effects from some possible concurrent wrong behaviors such as smoking or alcohol abuse. There are no investigations about the effect of masturbation in this context. There is a need to clarify the effects of sexual activity on competition performance. The present evidence suggests that sexual activity the day before competition does not exert any negative impact on performance, even though high-quality, randomized

  3. PARTICIPATION MOTIVATION AND STUDENT'S PHYSICAL ACTIVITY AMONG SPORT STUDENTS IN THREE COUNTRIES

    Directory of Open Access Journals (Sweden)

    Miran Kondric

    2013-03-01

    Full Text Available The main aim of this study was to examine the differences in motivation to participate in sport activities among sports students from three different countries. On a sample of 390 sports students from Slovenia, Croatia and Germany we studied what motivates an interest in being sports active. The sample was stratified across the choice to attend table tennis lessons at all three institutions and all students have completed the Participation Motivation Questionnaire (PMQ. The results revealed that the latent structure of the types of sports students' motives consisted of six factors (sport action with friend, popularity, fitness & health, social status, sports events, relaxation through sports. We also found significant sex differences in motivation to participate in sport activities for all sports students from the three different countries. We did not find relevant age-based differences among the students, and this is the only initial hypothesis that we can reject.

  4. Effect of sporting activity on absenteeism in a working population

    NARCIS (Netherlands)

    Heuvel, S.G. van den; Boshuizen, H.C.; Hildebrandt, V.H.; Blatter, B.M.; Ariëns, G.A.; Bongers, P.M.

    2005-01-01

    OBJECTIVES: To determine the effects of sporting activity on absenteeism in a working population. METHODS: Data were used from a prospective cohort study in a working population with a follow up period of 3 years and were collected with yearly questionnaires or collected from company records.

  5. Project Destiny: Initiating Physical Activity for Nonathletic Girls through Sport

    Science.gov (United States)

    Kyles, Carli; Lounsbery, Monica

    2004-01-01

    The purpose of this article is to emphasize the need to develop unique physical activity and sport programs that specifically target the participation of nonathletic and nonactive girls. In addition, the authors provide an overview of an example of one such program, Project Destiny. A description of Project Destiny is provided in terms of its…

  6. Regular sports activities decrease the risk of venous thrombosis

    NARCIS (Netherlands)

    van Stralen, K. J.; le Cessie, S.; Rosendaal, F. R.; Doggen, C. J. M.

    2007-01-01

    BACKGROUND: Stasis of the blood has been postulated as a major cause of venous thrombosis. However, little is known about the effect of stimulating the blood flow in order to prevent venous thrombosis through, for example, sports activities. OBJECTIVES: In a large population-based case-control study

  7. Using Sport Education in a University Physical Activity Course

    Science.gov (United States)

    Blocker, Danielle; Wahl-Alexander, Zachary

    2018-01-01

    At a majority of colleges and universities around the country, basic activity courses are taught predicated on teaching students basic skills and instilling healthy habits. The purpose of this article is to outline and describe a physical conditioning course that utilized the sport education (SE) model and emphasized outside engagement to instill…

  8. Sport and Other Motor Activities of Warsaw Students

    Science.gov (United States)

    Biernat, Elzbieta

    2011-01-01

    Study aim: To assess the engagement of students of Warsaw university schools in sports and in recreational motor activities. Material and methods: A cohort (n = 1100) of students attending B.S. or M.S. courses at 6 university schools in Warsaw were studied by applying questionnaire techniques. The questions pertained to participation in…

  9. Energy consumption in buildings for different sport activities

    Energy Technology Data Exchange (ETDEWEB)

    Norrfors, M; Werner, G; Oertenstrand, G

    1978-01-01

    Some buildings for different kinds of sport activities have a great energy demand. The actions which could be taken in order to decrease the energy demand and at the same time decrease the operating costs for these buildings are summarized. References are given to literature of current interest in this field.

  10. Activity-regulated genes as mediators of neural circuit plasticity.

    Science.gov (United States)

    Leslie, Jennifer H; Nedivi, Elly

    2011-08-01

    Modifications of neuronal circuits allow the brain to adapt and change with experience. This plasticity manifests during development and throughout life, and can be remarkably long lasting. Evidence has linked activity-regulated gene expression to the long-term structural and electrophysiological adaptations that take place during developmental critical periods, learning and memory, and alterations to sensory map representations in the adult. In all these cases, the cellular response to neuronal activity integrates multiple tightly coordinated mechanisms to precisely orchestrate long-lasting, functional and structural changes in brain circuits. Experience-dependent plasticity is triggered when neuronal excitation activates cellular signaling pathways from the synapse to the nucleus that initiate new programs of gene expression. The protein products of activity-regulated genes then work via a diverse array of cellular mechanisms to modify neuronal functional properties. Synaptic strengthening or weakening can reweight existing circuit connections, while structural changes including synapse addition and elimination create new connections. Posttranscriptional regulatory mechanisms, often also dependent on activity, further modulate activity-regulated gene transcript and protein function. Thus, activity-regulated genes implement varied forms of structural and functional plasticity to fine-tune brain circuit wiring. Copyright © 2011 Elsevier Ltd. All rights reserved.

  11. Sports Activity Following Cementless Metaphyseal Hip Joint Arthroplasty.

    Science.gov (United States)

    Czech, Szymon; Hermanson, Jacek; Rodak, Piotr; Stołtny, Tomasz; Rodak, Łukasz; Kasperczyk, Sławomir; Koczy, Bogdan; Mielnik, Michał

    2017-12-01

    An adequate level of physical activity has a substantial effect on both mental and physical human health. Physical activity is largely dependent on the function of the musculoskeletal and articular system. One of the most frequent diseases of this system is degenerative joint disease. Due to the changing and more demanding lifestyles and patients' willingness to be involved in sports activity, the expectations of hip joint arthroplasty are becoming increasingly high. Alleviating pain ceases to be the only reason for which patients choose surgical interventions, while the expectations often include involvement in various sports. Only few studies contain recommendations concerning the frequency, type and intensity of sports activity which are acceptable after hip joint arthroplasty. The aim of the study was to evaluate function and physical activity of people following cementless short-stem hip joint arthroplasty in the observation of at least five years. The study group comprised 106 patients who underwent total hip arthroplasty due to degenerative joint diseases, chosen according to inclusion criteria. Patients underwent routine physical examinations following the Harris Hip Score protocol, responded to the UCLA scale and questionnaires concerning pre-surgical and current physical activity. Our results demonstrated that hip joint arthroplasty in people suffering from degenerative joint diseases has a beneficial effect on their level of functioning and physical activity. Although physical activity and the level of functioning obviously reduced as a person aged, the level of physical activity continued to be very high in both groups, with function of the hip joint evaluated as very good.

  12. Reconsidering Feminisms and the Work of Norbert Elias for Understanding Gender, Sport and Sport-Related Activities

    Science.gov (United States)

    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…

  13. Neuronal Population Activity in Spinal Motor Circuits

    DEFF Research Database (Denmark)

    Berg, Rune W.

    2017-01-01

    The core elements of stereotypical movements such as locomotion, scratching and breathing are generated by networks in the lower brainstem and the spinal cord. Ensemble activities in spinal motor networks had until recently been merely a black box, but with the emergence of ultra-thin Silicon multi......-electrode technology it was possible to reveal the spiking activity of larger parts of the network. A series of experiments revealed unexpected features of spinal networks, such as multiple spiking regimes and lognormal firing rate distributions. The lognormality renders the widespread idea of a typical firing rate...

  14. The atmospheric electric global circuit. [thunderstorm activity

    Science.gov (United States)

    Kasemir, H. W.

    1979-01-01

    The hypothesis that world thunderstorm activity represents the generator for the atmospheric electric current flow in the earth atmosphere between ground and the ionosphere is based on a close correlation between the magnitude and the diurnal variation of the supply current (thunderstorm generator current) and the load current (fair weather air-earth current density integrated over the earth surface). The advantages of using lightning survey satellites to furnish a base for accepting or rejecting the thunderstorm generator hypothesis are discussed.

  15. Active Match Load Circuit Intended for Testing Piezoelectric Transformers

    DEFF Research Database (Denmark)

    Andersen, Thomas; Rødgaard, Martin Schøler; Andersen, Michael A. E.

    2012-01-01

    An adjustable high voltage active load circuit for voltage amplitudes above 100 volts, especially intended for resistive matching the output impedance of a piezoelectric transformer (PT) is proposed in this paper. PTs have been around for over 50 years, were C. A. Rosen is common known for his...

  16. Activity-dependent modulation of neural circuit synaptic connectivity

    Directory of Open Access Journals (Sweden)

    Charles R Tessier

    2009-07-01

    Full Text Available In many nervous systems, the establishment of neural circuits is known to proceed via a two-stage process; 1 early, activity-independent wiring to produce a rough map characterized by excessive synaptic connections, and 2 subsequent, use-dependent pruning to eliminate inappropriate connections and reinforce maintained synapses. In invertebrates, however, evidence of the activity-dependent phase of synaptic refinement has been elusive, and the dogma has long been that invertebrate circuits are “hard-wired” in a purely activity-independent manner. This conclusion has been challenged recently through the use of new transgenic tools employed in the powerful Drosophila system, which have allowed unprecedented temporal control and single neuron imaging resolution. These recent studies reveal that activity-dependent mechanisms are indeed required to refine circuit maps in Drosophila during precise, restricted windows of late-phase development. Such mechanisms of circuit refinement may be key to understanding a number of human neurological diseases, including developmental disorders such as Fragile X syndrome (FXS and autism, which are hypothesized to result from defects in synaptic connectivity and activity-dependent circuit function. This review focuses on our current understanding of activity-dependent synaptic connectivity in Drosophila, primarily through analyzing the role of the fragile X mental retardation protein (FMRP in the Drosophila FXS disease model. The particular emphasis of this review is on the expanding array of new genetically-encoded tools that are allowing cellular events and molecular players to be dissected with ever greater precision and detail.

  17. Attitudes of Consumers from Podgorica toward Advertising through Sport among the Question how Often they Participate in Sports Activities

    Directory of Open Access Journals (Sweden)

    Dijana Kovacevic

    2018-04-01

    Full Text Available This research was aimed at gaining relevant knowledge about the attitudes of Podgorica consumers toward advertising through sport among the question how often they participate in sports activities. The sample included 330 students from Faculty of Economics in Podgorica, 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 month. The sample of variables contained the system of three general attitudes which were modelled 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 statistical analyses it was found that significant differences occur at multivariate level, as well as between all three variables at a significance level of p=.000. Hence, it is interesting to highlight that it was found there are significant differences showed up between the consumers who participate in various sports activities. The significant differences were found in one of three variables, while the consumers who participate less than 4 times a moths had much more negative attitudes toward advertising though sport.

  18. Conditions for sports activities in selected organisations for disabled individuals in the town Teplice

    OpenAIRE

    Shaymardanova, Karina

    2010-01-01

    3 ABSTRACT Name: Conditions for sports activities in selected organisations for disabled individuals in the town of Teplice. Aim of the work: Monitoring sports activities as a socialisation factor for integration and socialisation of individuals with disabilities caused by poliomyelitis in the selected town of Teplice. Another objective was to describe conditions of sports activities and to determine opinions of handicapped individuals on attendance at sports groups in selected centres as wel...

  19. Sports activity after anatomic acromioclavicular joint stabilisation with flip-button technique.

    Science.gov (United States)

    Porschke, Felix; Schnetzke, Marc; Aytac, Sara; Studier-Fischer, Stefan; Gruetzner, Paul Alfred; Guehring, Thorsten

    2017-07-01

    Sports activity after surgical AC joint stabilisation has not been comprehensively evaluated to date. The aim of this study was to determine rate, level and time to return to sports after AC joint stabilisation and to identify the influence of overhead sports on post-operative sports activity. In this retrospective case series, a total of 68 patients with a high-grade AC joint dislocation (Rockwood type V) were stabilised using a single TightRope technique. Fifty-five patients (80.9 %) with median age of 42.0 (range, 18-65) years completed questionnaires regarding sports activity before and after surgery. Clinical outcome and complications were also evaluated. Forty-three patients participated in sports regularly before injury. Their sports activity was rated according to Allain, and non-overhead and overhead sports were differentiated. At median follow-up of 24 (18-45) months, 41 of 43 patients (95.3 %) had returned to sports. 63 % returned to the same sports activity as before injury. 16.3 % needed to adapt the type of sports to reduce demanding activities. 11.6 % reduced the frequency and 32.5 % the intensity of sports. The median time to return to sports was 9.5 (3-18) months. Overhead athletes (Allain Type III and IV) had to reduce their sports activity significantly more often (11.8 vs. 53.8 %; p = 0.011) and needed more time to return to sports (9.5 vs. 4.5 months; p = 0.009). After stabilisation of AC joint dislocation, the majority of patients returned to sports after a substantial period of time. Overhead athletes, in particular, required more time and had to considerably reduce their sports activity. The findings impact therapeutic decision-making after AC joint injury and help with the prognosis and assessment of rehabilitation progress. IV.

  20. Health promotion activities of sports clubs and coaches, and health and health behaviours in youth participating in sports clubs: the Health Promoting Sports Club study

    Science.gov (United States)

    Kokko, Sami; Selänne, Harri; Alanko, Lauri; Heinonen, Olli J; Korpelainen, Raija; Savonen, Kai; Vasankari, Tommi; Kannas, Lasse; Kujala, Urho M; Aira, Tuula; Villberg, Jari; Parkkari, Jari

    2015-01-01

    Introduction Sports clubs form a potential setting for health promotion, but the research is limited. The aim of the Health Promoting Sports Club (HPSC) study was to elucidate the current health promotion activities of youth sports clubs and coaches, and to investigate the health behaviours and health status of youth participating in sports clubs compared to non-participants. Methods and analysis The study design employs cross-sectional multilevel and multimethod research with aspirations to a prospective cohort study in the next phase. The setting-based variables at sports clubs and coaching levels, and health behaviour variables at the individual level, are investigated using surveys; and total levels of physical activity are assessed using objective accelerometer measurements. Health status variables will be measured by preparticipation screening. The health promotion activity of sports clubs (n=154) is evaluated by club officials (n=313) and coaches (n=281). Coaches and young athletes aged 14–16 (n=759) years evaluate the coaches’ health promotion activity. The survey of the adolescents’ health behaviours consist of two data sets—the first is on their health behaviours and the second is on musculoskeletal complaints and injuries. Data are collected via sports clubs (759 participants) and schools 1650 (665 participants and 983 non-participants). 591 (418 athletes and 173 non-athletes) youth, have already participated in preparticipation screening. Screening consists of detailed personal medical history, electrocardiography, flow-volume spirometry, basic laboratory analyses and health status screening, including posture, muscle balance, and static and dynamic postural control tests, conducted by sports and exercise medicine specialists. Ethics and dissemination The HPSC study is carried out conforming with the declaration of Helsinki. Ethical approval was received from the Ethics Committee of Health Care District of Central Finland. The HPSC study is

  1. Health promotion activities of sports clubs and coaches, and health and health behaviours in youth participating in sports clubs: the Health Promoting Sports Club study.

    Science.gov (United States)

    Kokko, Sami; Selänne, Harri; Alanko, Lauri; Heinonen, Olli J; Korpelainen, Raija; Savonen, Kai; Vasankari, Tommi; Kannas, Lasse; Kujala, Urho M; Aira, Tuula; Villberg, Jari; Parkkari, Jari

    2015-01-01

    Sports clubs form a potential setting for health promotion, but the research is limited. The aim of the Health Promoting Sports Club (HPSC) study was to elucidate the current health promotion activities of youth sports clubs and coaches, and to investigate the health behaviours and health status of youth participating in sports clubs compared to non-participants. The study design employs cross-sectional multilevel and multimethod research with aspirations to a prospective cohort study in the next phase. The setting-based variables at sports clubs and coaching levels, and health behaviour variables at the individual level, are investigated using surveys; and total levels of physical activity are assessed using objective accelerometer measurements. Health status variables will be measured by preparticipation screening. The health promotion activity of sports clubs (n=154) is evaluated by club officials (n=313) and coaches (n=281). Coaches and young athletes aged 14-16 (n=759) years evaluate the coaches' health promotion activity. The survey of the adolescents' health behaviours consist of two data sets-the first is on their health behaviours and the second is on musculoskeletal complaints and injuries. Data are collected via sports clubs (759 participants) and schools 1650 (665 participants and 983 non-participants). 591 (418 athletes and 173 non-athletes) youth, have already participated in preparticipation screening. Screening consists of detailed personal medical history, electrocardiography, flow-volume spirometry, basic laboratory analyses and health status screening, including posture, muscle balance, and static and dynamic postural control tests, conducted by sports and exercise medicine specialists. The HPSC study is carried out conforming with the declaration of Helsinki. Ethical approval was received from the Ethics Committee of Health Care District of Central Finland. The HPSC study is close-to-practice, which generates foundations for development work

  2. Active filter for the DESY III dipole circuit

    International Nuclear Information System (INIS)

    Bothe, W.

    1991-01-01

    The DESY 3 dipole circuit is now operated in a ramp mode cycle with 3.6 s repetition rate. Excitation is done by a 12-pulse thyristor converter, followed by a passive filter. The existing current control could be improved by addition of an active filter. The use of a more efficient passive filter reduces the size of the active filter and does not deteriorate the dynamic behavior. The design of the control loops and the results of the simulation are presented

  3. International medallists' and non-medallists' developmental sport activities - a matched-pairs analysis.

    Science.gov (United States)

    Güllich, Arne

    2017-12-01

    The study examined developmental participation patterns of international top athletes. Pairs of 83 international medallists (including 38 Olympic/World Champions) and 83 non-medallists were matched by sport, age and gender. A questionnaire recorded their volume of organised (coach-led) practice/training in their respective main sport and in other sports through childhood, adolescence and adulthood, and also involvement in non-organised (peer-led) sport activity. Analyses revealed that the medallists started practice/training in their main sport at an older age than non-medallists and accumulated slightly, but significantly less main-sport practice/training through childhood/adolescence. But they participated in more practice/training in other sports, particularly before entering their main sport. The medallists also maintained engagement in other sports over more years and specialised later than the non-medallists. Other sports engaged in were mostly unrelated to an athlete's main sport. The results were robust across different types of sports. The observations are reflected against tenets of the "deliberate practice" and "Developmental Model of Sport Participation" frameworks. Early diversified practice and learning experiences are discussed relative to the expansion of youngsters' potential for future long-term learning. In elite athletes, interaction of sport-specific practice/training with early other-sports participation mostly facilitates long-term attainment of international senior medals.

  4. The current implementation status of the integration of sports and physical activity into Dutch rehabilitation care

    NARCIS (Netherlands)

    Hoekstra, Femke; Hettinga, Florentina J; Alingh, Rolinde A; Duijf, Marjo; Dekker, Rienk; van der Woude, Lucas H V; van der Schans, Cees P

    PURPOSE: To describe the current status of the nationwide implementation process of a sports and physical activity stimulation programme to gain insight into how sports and physical activity were integrated into Dutch rehabilitation care. METHODS: The current implementation status of a sports and

  5. Creativity as a developmental resource in sport training activities

    DEFF Research Database (Denmark)

    Rasmussen, Ludvig Johan Torp; Østergaard, Lars Domino; Glaveanu, Vlad Petre

    2018-01-01

    The multidimensional concept of creativity has a much wider scope of application than disclosed by prevailing research on sporting creativity. In this area, creativity is mostly perceived, praised, and approached for its performative, in-game benefits. Pointing to the belief that creativity...... and nuance practical and scholastic dialogues, the purpose of this paper is to conceptualize creativity as a developmental resource in sport training activities. This is accomplished by building on and articulating Shilling's (2005) body-sociology, Glăveanu's (2012). socio-cultural notions about creativity...... requires well-developed technical skills, this phenomenon is often treated as a performative end. When targeting creative match performances, the developmental and experiential benefits of creative activities may be neglected, and creativity may be reserved for the best offensive players. To nourish...

  6. Profiling bacterial kinase activity using a genetic circuit

    DEFF Research Database (Denmark)

    van der Helm, Eric; Bech, Rasmus; Lehning, Christina Eva

    Phosphorylation is a post-translational modification that regulates the activity of several key proteins in bacteria and eukaryotes. Accordingly, a variety of tools has been developed to measure kinase activity. To couple phosphorylation to an in vivo fluorescent readout we used the Bacillus...... subtilis kinase PtkA, transmembrane activator TkmA and the repressor FatR to construct a genetic circuit in E. coli. By tuning the repressor and kinase expression level at the same time, we were able to show a 4.2-fold increase in signal upon kinase induction. We furthermore validated that the previously...... reported FatR Y45E mutation1 attenuates operator repression. This genetic circuit provides a starting point for computational protein design and a metagenomic library-screening tool....

  7. Using perturbations to identify the brain circuits underlying active vision.

    Science.gov (United States)

    Wurtz, Robert H

    2015-09-19

    The visual and oculomotor systems in the brain have been studied extensively in the primate. Together, they can be regarded as a single brain system that underlies active vision--the normal vision that begins with visual processing in the retina and extends through the brain to the generation of eye movement by the brainstem. The system is probably one of the most thoroughly studied brain systems in the primate, and it offers an ideal opportunity to evaluate the advantages and disadvantages of the series of perturbation techniques that have been used to study it. The perturbations have been critical in moving from correlations between neuronal activity and behaviour closer to a causal relation between neuronal activity and behaviour. The same perturbation techniques have also been used to tease out neuronal circuits that are related to active vision that in turn are driving behaviour. The evolution of perturbation techniques includes ablation of both cortical and subcortical targets, punctate chemical lesions, reversible inactivations, electrical stimulation, and finally the expanding optogenetic techniques. The evolution of perturbation techniques has supported progressively stronger conclusions about what neuronal circuits in the brain underlie active vision and how the circuits themselves might be organized.

  8. Sports Activity Following Cementless Metaphyseal Hip Joint Arthroplasty

    Directory of Open Access Journals (Sweden)

    Czech Szymon

    2017-12-01

    Full Text Available An adequate level of physical activity has a substantial effect on both mental and physical human health. Physical activity is largely dependent on the function of the musculoskeletal and articular system. One of the most frequent diseases of this system is degenerative joint disease. Due to the changing and more demanding lifestyles and patients’ willingness to be involved in sports activity, the expectations of hip joint arthroplasty are becoming increasingly high. Alleviating pain ceases to be the only reason for which patients choose surgical interventions, while the expectations often include involvement in various sports. Only few studies contain recommendations concerning the frequency, type and intensity of sports activity which are acceptable after hip joint arthroplasty. The aim of the study was to evaluate function and physical activity of people following cementless short-stem hip joint arthroplasty in the observation of at least five years. The study group comprised 106 patients who underwent total hip arthroplasty due to degenerative joint diseases, chosen according to inclusion criteria. Patients underwent routine physical examinations following the Harris Hip Score protocol, responded to the UCLA scale and questionnaires concerning pre-surgical and current physical activity. Our results demonstrated that hip joint arthroplasty in people suffering from degenerative joint diseases has a beneficial effect on their level of functioning and physical activity. Although physical activity and the level of functioning obviously reduced as a person aged, the level of physical activity continued to be very high in both groups, with function of the hip joint evaluated as very good.

  9. The association between high recreational physical activity and physical activity as a part of daily living in adolescents and availability of local indoor sports facilities and sports clubs

    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...

  10. Comparison of economic activity leading U.S. sports leagues

    Directory of Open Access Journals (Sweden)

    E.A. Strikalenko

    2013-03-01

    Full Text Available The main activities of the leading sports leagues were described. Sources of revenue and expenditure were identified. The economic performance of professional sports leagues of the United States of America was compared. In the course of the study of economic efficiency of the leading American sports leagues are defined payroll (expense commands on the salaries of players for each team, the total payroll in the League and the average payroll, respectively, for each of the American League. The largest estimates on wages, both in the League and in teams - in the National football League, the largest player's contract - in the Highest League baseball, the minimum wage in the National hockey League; the highest average wages, a greater percentage of athletes with a salary of more than 1 million. $ (82,85 % in the National basketball Association were showed. This difference in the maximum income of the League and of average wages is due to several factors: the number of players in the team, the number of games in a season, and expenses on carrying out of competition and training activities.

  11. Proposal of competitive sport activities to improve the participation of children with late mental development to the systematic sport training.

    Directory of Open Access Journals (Sweden)

    María de la Caridad Veloso Pérez

    2010-06-01

    Full Text Available The proposal to the problematic solution dealt with in the present investigation is constituted by competitive sport activities, which respond to its totality to the integral diagnosis and therefore, to the individual and group characteristics of the selected students as it is shown, being of this form in the heat of correspondence with their real necessities. This activities were developed during the partaking sport time and three stages framed during the course to the competitions. Its organization was based on the same principles on which the Program of the Special Olympic Games is fomented, extracting from the quarries of the base sport the sport talent, it is for that reason so important the work of preparation and participation in the bases, as from the whole scale practice it is that the quality is obtained or the sport talent within the ample range of sport disciplines. The work's objective is to apply competitive sport activities to improve the participation of late mental development children in the systematic training. These activities, proposed as solution, were very effective, since it was obtained a favorable atmosphere in all the school in students, teachers, specialists, family, community, making possible these children to improved their participation in the systematic training, their technical level improved a lot and, mainly, they demonstrated that the sport is one of the fundamental routes to the formation of values in this population group. The results thrown by the investigation are considered valuable since it is the base for the profit of good results in the competence.

  12. Physical Activity Patterns in Portuguese Adolescents: The Contribution of Extracurricular Sports

    Science.gov (United States)

    Silva, Pedro; Sousa, Michael; Aires, Luisa; Seabra, Andre; Ribeiro, Jose; Welk, Gregory; Mota, Jorge

    2010-01-01

    In Portugal, two sports systems exist, one through schools and the other in community clubs. The purpose was to determine the impact of extra-curricular sports (EC sports) on boys' and girls' moderate to vigorous physical activity (MVPA). 208 adolescents (79 boys and 129 girls), between 12 and 18 years old, wore an accelerometer over seven days.…

  13. Effects of sport activities on increasing preschool children's creativity

    Directory of Open Access Journals (Sweden)

    Mehdi Shahbazi

    2012-10-01

    Full Text Available Torrance tests of creative thinking have been widely used to measure the impact of different items such as creativity on different groups of children. In this study, we perform an empirical study to measure the effects of endurance, power-based and flexibility on a group of children's creativity, originality and flexibility. The study chooses a sample of 341 from 2978 preschool children and distributes a questionnaire among them where 153 were female and 188 of them were male. Cronbach alpha for creativity, originality and fluency were calculated as 0.814, 0.822 and 0.788, respectively. The results of our study indicate that there are some positive and meaningful relationship among three components of creativity, originality and fluency before and after accomplishing test. The impact of test was measured for three types of sport activities including endurance, power-based and flexibility tests. After applying 32 sessions of sporting games, flexibility games represent a mean value of 32.40, which is higher than the other two tests and it maintains meaningful value compared with two other sporting tests of endurance and power base tests.

  14. Procrastination phenomenon in individual and team sports athletes’ activity

    Directory of Open Access Journals (Sweden)

    Valentina V. Barabanshchikova

    2015-09-01

    Full Text Available The modern world imposes strict conditions on people in various types of activities. A huge amount of processed information, tight timelines and other factors may cause people’s inability to cope with their tasks. Thus, there is a popular habit to put off the work without thinking about the consequences. This trait called procrastination is inherent to a million people all over the world. The problem of procrastination is just beginning to develop in Russia. Nowadays lots of foreign research and foreign questionnaires are being translated and approbated. The aim of this research is to identify the level of athletes’ procrastination, and define the differences of procrastination patterns in individual and team sports athletes. Also we want to study the relationship between procrastination and athletes’ personal characteristics such as extroversion, neuroticism, control over the actions, motivation to success, anxiety, time perspective and decision-making style (coping, and also indicators of state anxiety using a sample of individual athletes (boxing, unarmed self-defence, judo, karate, kickboxing, wrestling, taekwondo and teams (hockey, football, volleyball. Correlation analysis shows structural differences of procrastination manifestations in different types of sport. Regression analysis shows that in athletes of individual sports (model: p = 0,002, adjusted R2 = 0,368 there is only one significant predictor of procrastination - the negative past (p = 0,007, β = 0,495. The negative past (p = 0,003, β = 0,463, the control over the planning of the action (p = 0,05, β = -0.220 and the monitoring of the implementation of the action (p = 0,003, β = -0,465 are the predictors of procrastination in team sports (model: p = 0,002, adjusred R2 = 0,368.

  15. Networking in Sport Management: Ideas and Activities to Enhance Student Engagement and Career Development

    Directory of Open Access Journals (Sweden)

    Alan S. Kornspan

    2013-01-01

    Full Text Available The primary purpose of this paper is to present information regarding the development of networking skills to enhance the career development of sport management students. Specifically, literature is reviewed which supports the importance of networking in the attainment of employment and career advancement in the sport industry. This is followed by an overview of emerging networking activities that allow opportunities for sport management students to expand their network. Sport industry career fairs and career conferences that students can attend are discussed. Additionally, sport industry professional associations that students can become involved with are presented. This is then followed with information related to the development of sport management clubs and various events that can be promoted to enhance the networking process. Specifically, activities provided by university faculty to enhance the educational experience of sport management students are detailed. Finally, a sample schedule of semester activities focused on student engagement and networking activities is provided.

  16. ATTITUDES OF SERBIAN CONSUMERS TOWARD ADVERTISING THROUGH SPORT WITH REGARD TO THE FREQUENCY OF THEIR PARTICIPATION IN SPORTS ACTIVITIES

    Directory of Open Access Journals (Sweden)

    Stevo Popović

    2015-05-01

    Full Text Available Advertising is an attractive promotional tool for marketers who can use it to strengthen communication with consumers and persuade them to purchasing certain product or service (Bjelica et al., 2014; Muratović et al., 2014. Hence, there is nececity to analyse their general attitudes among various questions, while this research was aimed at gaining relevant knowledge about the attitudes of Serbian consumers toward advertising through sport among the question how often they participate in sports activities. Methods: The sample included 127 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. Results: Based on the statistical analyses it was found that significant differences didn’t occur at multivariate level, as well as between all three variables at a significance level of p=.05. Hence, it is interesting to highlight that it was found there are no significant differences showed up between the consumers who participate in various sports activities. Discussion: These results are so important for the marketers, mostly due to the reason they can merge all the potential consumers who participate in various sports activities into one homogenious group. This wasn’t the case in previous investigations (Popović et al., 2011 and this observation presents relevant information.

  17. PHYSICAL AND SPORT ACTIVITIES OF INTELLECTUALLY DISABLED INDIVIDUALS

    Directory of Open Access Journals (Sweden)

    Zoran Stanišić

    2012-06-01

    Full Text Available The low level of physical fitness of intellectually disabled individuals is most often the result of a sedentary lifestyle and the lack of the possibility for these individuals to take part in various forms of physical activity, and as a consequence these individuals are often unable to take part in any form of planned physical activities, are unable to adequately perform everyday activities and have limited abilities for performing workrelated duties. Regular physical activity can have a preventive effect, can reduce health risks and prevent the onset of various illnesses, as well as to promote an active lifestyle and increase physical and work capacities among the members of this particular population. Sport can play an important role in the life of individuals with intellectual disability as it represents a good basis for the development of physical and cognitive abilities. Team sports, which include interaction among a large number of people, a decision-making processes in a variety of situations and the understanding of the game itself in its constituent parts can be used as an effective and practical treatment of individuals with intellectual disability.

  18. What do athletes drink during competitive sporting activities?

    Science.gov (United States)

    Garth, Alison K; Burke, Louise M

    2013-07-01

    Although expert groups have developed guidelines for fluid intake during sports, there is debate about their real-world application. We reviewed the literature on self-selected hydration strategies during sporting competitions to determine what is apparently practical and valued by athletes. We found few studies of drinking practices involving elite or highly competitive athletes, even in popular sports. The available literature revealed wide variability in fluid intake and sweat losses across and within different events with varied strategies to allow fluid intake. Typical drinking practices appear to limit body mass (BM) losses to ~2 % in non-elite competitors. There are events, however, in which mean losses are greater, particularly among elite competitors and in hot weather, and evidence that individual participants fail to meet current guidelines by gaining BM or losing >2 % BM over the competition activity. Substantial (>5 %) BM loss is noted in the few studies of elite competitors in endurance and ultra-endurance events; while this may be consistent with winning outcomes, such observations cannot judge whether performance was optimal for that individual. A complex array of factors influence opportunities to drink during continuous competitive activities, many of which are outside the athlete's control: these include event rules and tactics, regulated availability of fluid, need to maintain optimal technique or speed, and gastrointestinal comfort. Therefore, it is questionable, particularly for top competitors, whether drinking can be truly ad libitum (defined as "whenever and in whatever volumes chosen by the athlete"). While there are variable relationships between fluid intake, fluid balance across races, and finishing times, in many situations it appears that top athletes take calculated risks in emphasizing the costs of drinking against the benefits. However, some non-elite competitors may need to be mindful of the disadvantages of drinking beyond

  19. Aging, physical activity and sports injuries. An overview of common sports injuries in the elderly.

    Science.gov (United States)

    Kallinen, M; Markku, A

    1995-07-01

    Illness and aging both cause many structural and functional alterations in the human body, rendering elderly people liable to overloading of the musculoskeletal and cardiovascular systems. It should, however, be kept in mind that immobilisation and inactivity have even more deleterious effects on structures and functions in the elderly than in younger adults. Most physically active elderly people are selected individuals with respect to their superior health and physical capacity compared with inactive persons of the same age, thus making it possible to further improve their physical capacity. They will, however, be affected by some of the drawbacks of physical overloading, mostly due to the diminished ability of aging body systems to adapt to high levels of loading. The safety margin of an exercise dose tends to decline with aging. Exertional injuries are common among the elderly, and are connected mostly with degenerative aging processes. Acute injuries are common in those elderly people participating in sport activities which demand high coordination, reaction time, and balance capabilities, such as ball games, down-hill skiing, and gymnastics. Muscle has been reported to be the most commonly acutely injured tissue among active elderly athletes. The lower extremities are the most susceptible to injury. A large proportion of injuries (acute and exertional) are mild and can be treated by brief cessation of training and competition activities. Some of the injuries are, however, long term and cause disability not only during training and competition, but also in the normal activities of daily living. It is important that these injuries are treated as soon as possible and in the most effective way, similarly to injuries suffered by younger people. In treating elderly people, it is most important to avoid the detrimental effects of immobilisation; this requires active treatment and rehabilitation with compensatory exercise therapy. The best 'treatment' for sports

  20. Are coaches' health promotion activities beneficial for sport participants? A multilevel analysis.

    Science.gov (United States)

    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.

  1. Sport participation in colorectal cancer survivors: an unexplored approach to promoting physical activity.

    Science.gov (United States)

    McGowan, Erin L; Speed-Andrews, Amy E; Rhodes, Ryan E; Blanchard, Chris M; Culos-Reed, S Nicole; Friedenreich, Christine M; Courneya, Kerry S

    2013-01-01

    Physical activity improves health outcomes in colorectal cancer (CRC) survivors, but participation rates are low. One understudied strategy for increasing physical activity in CRC survivors may be sport participation. Here, we report the sport participation rate, sport preferences, and correlates of sport participation among CRC survivors. A provincial, population-based mailed survey of CRC survivors in Alberta, Canada was performed and included measures of sport participation, sport preferences, sport benefits and barriers, and medical and demographic variables. A total of 600 CRC survivors completed the survey (34 % response rate). Almost a quarter (23.0 %) of CRC survivors reported participating in a sport in the past month, with the most common sport being golf (58.7 %). In multivariate regression analysis, 33.0 % (p = 0.001) of the variance in sport participation was explained by being male (β = 0.12; p = 0.006), in better general health (β = 0.12; p = 0.006), and ≥ 5 years post-diagnosis (β = 0.09; p = 0.031). The most common barriers to sport participation were time, age/agility, and no interest/dislike of sports. The most common anticipated benefits of sport participation were improved physical fitness, meeting people, and improved health. Over half (57.2 %) of CRC survivors were possibly interested in learning about sport participation opportunities. Promotion of sport participation may be a potentially fruitful strategy for increasing physical activity in CRC survivors.

  2. The role of physical / sports activitys as an burnout prevention for special and rehabilitation educators

    OpenAIRE

    Heric, Katja

    2013-01-01

    The Diploma thesis contains an overview of literature concerning the topic of how the sport/physical activity effects the phenomenon of professional burnout with special educatiors. I would like to explore the causes for and the signs of professional burnout, does sport/physical activity have a pozitive influence on an individual and if it is possible to prevent professional burnout with the help of sport/physical activity. I have found out that numerous stress factors at work, wich every ed...

  3. Musculoskeletal pains in relation to different sport and exercise activities in youth.

    Science.gov (United States)

    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.

  4. Inequalities in Sport and Physical Activity Programs in Ontario Schools.

    Science.gov (United States)

    Macintosh, Donald

    1981-01-01

    Two recent studies of interschool sports and physical education in Ontario secondary schools examine the issues of differences in interschool sports participation as a reflection of socioeconomic background, gender of the participants, degree of participation, and school size.

  5. Participation in Armed Forces, National, and International Sports Activities

    Science.gov (United States)

    1987-03-09

    American Games , Olympic Games , and other authorized national and international sports competitions (to include qualifying and preparatory events) as long...concerning the participation of Armed Forces personnel in Armed Forces, national, and international sports competitions ; establishes a Senior Military Sports ...program is to ensure that the U.S. Armed Forces are appropriately represented in national and international sports competitions . 3. The purpose of this

  6. Increase of the effectiveness of school PE classes through sport preferences survey: Contextual prediction of demanded sport activities

    Directory of Open Access Journals (Sweden)

    Michal Kudláček

    2013-03-01

    Full Text Available BACKGROUND: An effort to promote participation in any type of PA is more effective when it is aimed at needs, interests and preferences of particular target group. Current evidence emphasizes the insufficiency of PA in all age groups. OBJECTIVE: The purpose of the study was to analyze and describe the structure of sport activity preferences of high school students and to contribute to prospective improvement of sports and physical activity programs. METHODS: Two standardized questionnaires were used – 1. sport preferences questionnaire, 2. international physical activity questionnaire (IPAQ. The research sample (N = 333 consisted of high school students from the Czech Republic. RESULTS: Our results confirm that the differences between girls and boys are not as great as they were few decades ago. There is a visible dynamic in the development of sport preferences structure. Despite this fact there is a spectrum of sports that are constantly preferred – soccer, volleyball, aerobics and swimming. Acquired results indicate that the range of PA amount in girls varies from 2,372 MET-min/week (15 year old girls to 4,467 MET-min/week (17 year old girls, while acquired results in boys varies from 2,535 MET-min/week (16 year old boys to 4,973 MET-min/week (17 year old boys. The results, if properly applied, could increase the total amount of PA in high school students and improve the effectiveness of school PE.

  7. Is active participation in specific sport activities linked with back pain?

    DEFF Research Database (Denmark)

    Mogensen, A.M.; Gausel, AM; Wedderkopp, Niels

    2007-01-01

    A cross-sectional survey of 439 children/adolescents aged 12-13, living in Odense, Denmark, in the year 2001. To investigate (1) if there is any difference in back pain reporting among those practising specific sports as compared with non-performers and (2) if there is an association between...... specific kinds of sports and self-reported back problems. Back pain is a common complaint in young people and physical inactivity is generally thought to contribute to this. However, some specific sport activities may be detrimental or beneficial to the spine. Information was collected through a semi......-structured interview, a physical examination, and a questionnaire. Associations for back pain, low back pain, mid back pain and neck pain in the preceding month were investigated in relation to specific sports. Associations were controlled for body mass index, puberty stage and sex. There was no association between...

  8. Gender Differences in Popularity and Engagement in Sport Activities among Students

    OpenAIRE

    Matej Majerič

    2016-01-01

    The main purpose of this research was to analyse the gender differences among students at the University of Ljubljana concerning the popularity of sports and participation in different types and modes of sport activities. The research was done in the 2013 academic year on a random sample of 3% of the students (N=1390). A questionnaire about students’ lifestyles was used (Majerič, 2013). In this study, two variables were analysed: the popularity of different sport activities, and different typ...

  9. The association between high recreational physical activity and physical activity as a part of daily living in adolescents and availability of local indoor sports facilities and sports clubs.

    Science.gov (United States)

    Niclasen, Birgit; Petzold, Max; Schnohr, Christina W

    2012-11-01

    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 members) in Greenlandic adolescents. Data from the 2006 Health Behaviour in School-aged Children survey including 2,430 children aged 11-17 years was used. Logistic regression models were developed with dichotomous measures on VPA and MVPA as outcomes, number of indoor sports 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). High VPA increased with access to indoor facilities, while high MVPA was less likely (odds ratio (OR) 0.54 (0.42-0.70)) if indoor sports facilities were present, both unadjusted and adjusted. Access to a local sports club increased OR for high VPA both unadjusted and adjusted to about 2.3 for five or more clubs, while access to sports clubs was not associated with unadjusted MVPA, negatively associated if adjusted for age, gender and FAS but positively associated if also adjusted for indoor sports facilities. 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 associated with high VPA while the association with high MVPA was more complex. The findings have implications for public health planning.

  10. Active quenching circuit for a InGaAs single-photon avalanche diode

    International Nuclear Information System (INIS)

    Zheng Lixia; Wu Jin; Xi Shuiqing; Shi Longxing; Liu Siyang; Sun Weifeng

    2014-01-01

    We present a novel gated operation active quenching circuit (AQC). In order to simulate the quenching circuit a complete SPICE model of a InGaAs SPAD is set up according to the I–V characteristic measurement results of the detector. The circuit integrated with aROIC (readout integrated circuit) is fabricated in an CSMC 0.5 μm CMOS process and then hybrid packed with the detector. Chip measurement results show that the functionality of the circuit is correct and the performance is suitable for practical system applications. (semiconductor integrated circuits)

  11. Sport Marketing

    OpenAIRE

    Ekmekci, Ridvan; Ekmekçi, Aytul Yeter

    2009-01-01

    Abstract  Marketing which is entered to almost our whole life, now more than goods and services, became an important  concept of ideas, persons, institutions, events, and facilities. As a main activities of business co. marketing has an important place in sports industry. Recently, the development of special sport marketing strategies and the presentation of sport goods and services to consumers are gaining importance. Efforts of increasing income of sport clubs, because of sport organization...

  12. Effects of sports participation on psychiatric symptoms and brain activations during sports observation in schizophrenia

    OpenAIRE

    Takahashi, H; Sassa, T; Shibuya, T; Kato, M; Koeda, M; Murai, T; Matsuura, M; Asai, K; Suhara, T; Okubo, Y

    2012-01-01

    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 s...

  13. Phenomenology of non-verbal communication as a representation of sports activities

    Directory of Open Access Journals (Sweden)

    Liubov Karpets

    2018-04-01

    Full Text Available The priority of language professional activity in sports is such non-verbal communication as body language. Purpose: to delete the main aspects of non-verbal communication as a representation of sports activities. Material & Methods: in the study participated members of sports teams, individual athletes, in particular, for such sports: basketball, handball, volleyball, football, hockey, bodybuilding. Results: in the process of research it was revealed that in sports activities such nonverbal communication as gestures, facial expressions, physique, etc., are lapped, and, as a consequence, the position "everything is language" (Lyotard is embodied. Conclusions: non-verbal communication is one of the most significant forms of communication in sports. Additional means of communication through the "language" of the body help the athletes to realize themselves and self-determination.

  14. Derivation of criteria for primary circuit activity in an HTGR

    International Nuclear Information System (INIS)

    Su, S.D.; Barsell, A.W.

    1980-11-01

    This paper derives specific criteria for the circulating and plateout activity in the primary circuit for a 2170-MW(t) high temperature gas-cooled reactor-gas turbine (HTGR-GT) plant. Results show that for a design basis, (1) the circulating activity should be limited to 14,000 Ci Kr-88 (a principal nuclide) to meet both offsite dose and containment access constraint during normal operation and depressurization accidents, and (2) the plateout inventories for those important nuclides affecting shutdown maintenance should not exceed 10,000 Ci Ag-110m, 45,000 Ci Cs-134 and 130,000 Ci Cs-137. This paper presents bases and methodology for deriving such criteria and compares them with light water reactors. 5 tables

  15. On the origin of reproducible sequential activity in neural circuits

    Science.gov (United States)

    Afraimovich, V. S.; Zhigulin, V. P.; Rabinovich, M. I.

    2004-12-01

    Robustness and reproducibility of sequential spatio-temporal responses is an essential feature of many neural circuits in sensory and motor systems of animals. The most common mathematical images of dynamical regimes in neural systems are fixed points, limit cycles, chaotic attractors, and continuous attractors (attractive manifolds of neutrally stable fixed points). These are not suitable for the description of reproducible transient sequential neural dynamics. In this paper we present the concept of a stable heteroclinic sequence (SHS), which is not an attractor. SHS opens the way for understanding and modeling of transient sequential activity in neural circuits. We show that this new mathematical object can be used to describe robust and reproducible sequential neural dynamics. Using the framework of a generalized high-dimensional Lotka-Volterra model, that describes the dynamics of firing rates in an inhibitory network, we present analytical results on the existence of the SHS in the phase space of the network. With the help of numerical simulations we confirm its robustness in presence of noise in spite of the transient nature of the corresponding trajectories. Finally, by referring to several recent neurobiological experiments, we discuss possible applications of this new concept to several problems in neuroscience.

  16. The current implementation status of the integration of sports and physical activity into Dutch rehabilitation care.

    Science.gov (United States)

    Hoekstra, Femke; Hettinga, Florentina J; Alingh, Rolinde A; Duijf, Marjo; Dekker, Rienk; van der Woude, Lucas H V; van der Schans, Cees P

    2017-01-01

    To describe the current status of the nationwide implementation process of a sports and physical activity stimulation programme to gain insight into how sports and physical activity were integrated into Dutch rehabilitation care. The current implementation status of a sports and physical activity stimulation programme in 12 rehabilitation centres and 5 hospitals with a rehabilitation department was described by scoring fidelity and satisfaction. Seventy-one rehabilitation professionals filled out a questionnaire on how sports and physical activity, including stimulation activities, were implemented into rehabilitation care. Total fidelity scores (in %) were calculated for each organization. Professionals' satisfaction was rated on a scale from 1 to 10. In most organizations sports and physical activity were to some extent integrated during and after rehabilitation (fidelity scores: median = 54%, IQR = 23%). Physical activity stimulation was not always embedded as standard component of a rehabilitation treatment. Professionals' satisfaction rated a median value of 8.0 (IQR = 0.0) indicating high satisfaction rates. The fidelity outcome showed that activities to stimulate sports and physical activity during and after rehabilitation were integrated into rehabilitation care, but not always delivered as standardized component. These findings have emphasized the importance to focus on integrating these activities into routines of organizations. Implications for Rehabilitation Components of an evidence-based programme to stimulate sports and physical activity during and after rehabilitation can be used to measure the current status of the integration of sports and physical activity in rehabilitation care in a structural and effective way. The method described in the current study can be used to compare the content of the rehabilitation care regarding the integration of sports and physical activity among organizations both on a national and international level

  17. Is Team Sport the Key to Getting Everybody Active, Every Day? A Systematic Review of Physical Activity Interventions Aimed at Increasing Girls' Participation in Team Sport.

    Science.gov (United States)

    Allison, Rosalie; Bird, Emma L; McClean, Stuart

    2017-01-01

    It is estimated that 21% of boys and 16% of girls in England meet recommended physical activity guidelines. Team sport has the potential to increase physical activity levels; however, studies show that gender-based factors can influence girls' participation in team sport. Furthermore, evidence for the effectiveness of interventions promoting team sport among girls is limited. This systematic review aimed to assess the impact of physical activity interventions on secondary school-aged girls' (aged 11-18 years) participation in team sport and to identify potential strategies for increasing participation. Electronic databases and grey literature were systematically searched for studies of interventions targeting team sport participation among girls in the UK. Results were exported to Refworks, duplicates removed and eligible studies identified. Extracted data included: participant details, such as sample size and age; components of the intervention; outcomes assessed; and each study was quality appraised. Due to heterogeneity across studies, results were presented narratively. Four studies sourced from the grey literature met the inclusion criteria. Findings suggest that physical activity interventions can encourage girls to try new sports, but evidence is limited in relation to sustained participation. Potential strategies for promoting participation included: consultation with girls, implementation of appropriate peer-leaders and friendship group strategies, early intervention and consideration of intervention setting. This review highlights the limited availability of evidence on the effectiveness of physical activity interventions for promoting team sport participation among girls in the UK. Findings indicate that future research is needed to improve the methodological quality of complex intervention evaluation. Physical activity interventions may have the potential to encourage girls to try team sport, but their impact on sustained participation, and subsequent

  18. The Role of Physical Activity/Sport in Tackling Youth Disaffection and Anti-Social Behaviour

    Science.gov (United States)

    Sandford, Rachel A.; Duncombe, Rebecca; Armour, Kathy M.

    2008-01-01

    The purpose of this paper is to examine the existing evidence about the impact of sport/physical activity programmes on positive youth development in the context of education. The issue of youth disaffection is topical and a number of authors and policy makers have acknowledged that physical activity/sport may be an effective way of helping to…

  19. Title IX, Girls' Sports Participation, and Adult Female Physical Activity and Weight

    Science.gov (United States)

    Kaestner, Robert; Xu, Xin

    2010-01-01

    Arguably, the most important school-based intervention to increase physical activity was Title IX of the Education Amendments of 1972, which led to a 600% increase in girls' sports participation between 1972 and 1978. We studied the effect of this increase in sports participation and athletic opportunities while young on the physical activity and…

  20. Leadership as factor of men's student basketball team sports and games activities efficiency

    Directory of Open Access Journals (Sweden)

    Andryushina L.L.

    2012-11-01

    Full Text Available The main goal of study is extension of information about combining psychological, athlete's physical and sports fitness qualification in playing sports in training process while studying in university. This study took place on 24 athletes, boys 18 - 21 years of different skills (the candidate for the master of sports - 9, first-class sportsman - 12, second-class sportsman - 3. It is proved that the effectiveness of sports and gaming activities in team sports will then be productive when there be a switch in the relationship between leading and famous players from the "subject - object" to "subject -subjective ". It was determined that the main precondition for the effectiveness of competitive activity is before head identification and formation of leadership behavior in teams players of team sports, where leadership is behavioral interaction process for individuals or teams to achieve established goals.

  1. Physical education, school physical activity, school sports and academic performance

    Directory of Open Access Journals (Sweden)

    Shephard Roy J

    2008-02-01

    Full Text Available Abstract Background The purpose of this paper is to review relationships of academic performance and some of its determinants to participation in school-based physical activities, including physical education (PE, free school physical activity (PA and school sports. Methods Linkages between academic achievement and involvement in PE, school PA and sport programmes have been examined, based on a systematic review of currently available literature, including a comprehensive search of MEDLINE (1966 to 2007, PSYCHINFO (1974 to 2007, SCHOLAR.GOOGLE.COM, and ERIC databases. Results Quasi-experimental data indicate that allocating up to an additional hour per day of curricular time to PA programmes does not affect the academic performance of primary school students negatively, even though the time allocated to other subjects usually shows a corresponding reduction. An additional curricular emphasis on PE may result in small absolute gains in grade point average (GPA, and such findings strongly suggest a relative increase in performance per unit of academic teaching time. Further, the overwhelmingly majority of such programmes have demonstrated an improvement in some measures of physical fitness (PF. Cross-sectional observations show a positive association between academic performance and PA, but PF does not seem to show such an association. PA has positive influences on concentration, memory and classroom behaviour. Data from quasi-experimental studies find support in mechanistic experiments on cognitive function, pointing to a positive relationship between PA and intellectual performance. Conclusion Given competent providers, PA can be added to the school curriculum by taking time from other subjects without risk of hindering student academic achievement. On the other hand, adding time to "academic" or "curricular" subjects by taking time from physical education programmes does not enhance grades in these subjects and may be detrimental to health.

  2. Sports activity after total joint arthroplasty: recommendations for the counseling physician.

    Science.gov (United States)

    Buza, John A; Fink, Leslie A; Levine, William N

    2013-02-01

    Sports activity after total joint arthroplasty (TJA) has become an increasingly important topic, as many younger patients seeking TJA have higher postoperative expectations with regard to return to athletic activity. Our current knowledge of this area is largely based on retrospective clinical studies and surveys of surgeon recommendations. The decision to participate in sports after TJA depends on the patient's general health, prior athletic experience, type of TJA, and desired sporting activity. Ultimately, patients should discuss these factors with their physician in order to make an educated decision regarding sports activity after TJA. This article summarizes the best available evidence to help guide physicians in their conversation with patients regarding safe and appropriate sports activity after TJA.

  3. Monolithic microwave integrated circuit devices for active array antennas

    Science.gov (United States)

    Mittra, R.

    1984-01-01

    Two different aspects of active antenna array design were investigated. The transition between monolithic microwave integrated circuits and rectangular waveguides was studied along with crosstalk in multiconductor transmission lines. The boundary value problem associated with a discontinuity in a microstrip line is formulated. This entailed, as a first step, the derivation of the propagating as well as evanescent modes of a microstrip line. The solution is derived to a simple discontinuity problem: change in width of the center strip. As for the multiconductor transmission line problem. A computer algorithm was developed for computing the crosstalk noise from the signal to the sense lines. The computation is based on the assumption that these lines are terminated in passive loads.

  4. Organizational structure and basic functions of international convention «SportAссord» activity

    Directory of Open Access Journals (Sweden)

    Nina Dolbysheva

    2015-06-01

    Full Text Available Purpose: to define and determine the basic functions of International convention “SportAссord” activity within the framework of international sport movement. Materials and Methods: 21 literary sources have been analyzed. Results: International convention “SportAссord” is a nongovernmental sport organization, which unites, supports, coordinates and protects international sport federations and organizations in the international sport movement. “SportAссord” does its activities in accordance with United Nations General Assembly Resolution 1296 (XLIV, provisions of the International Olympic Charter and Code of Ethics, grounding on World Anti-Doping Code. The president is the head of administrative office, with the departments and board of executive body under control. General Assembly is the supreme authority, which carries out the range of basic tasks and grants authority to the management of “SportAccord” and its members for them to fulfill general and special functions. Conclusions: the International convention “SportAccord” activity is aimed at carrying out tasks by fulfilling general and special functions on the basis of international and internal legal documents.

  5. The impact of patellar tendinopathy on sports and work performance in active athletes

    OpenAIRE

    De Vries, Astrid J; Koolhaas, Wendy; Zwerver, Johannes; Diercks, Ron L.; Nieuwenhuis, Kari; Van Der Worp, Henk; Brouwer, Sandra; Van Den Akker-Scheek, Inge

    2017-01-01

    Greater insight into sports and work performance of athletes with patellar tendinopathy (PT) will help establish the severity of this common overuse injury. Primary aim of this study is to investigate the impact of PT on sports and work performance. Seventy seven active athletes with PT (50 males; age 28.1 +/- 8.2years; Victorian Institute of Sports Assessment Patella 56.4 +/- 12.3) participated in this survey. Sports performance, work ability and work productivity were assessed using the Osl...

  6. Double standards for community sports: promoting active lifestyles but unhealthy diets.

    Science.gov (United States)

    Kelly, Bridget; Chapman, Kathy; King, Lesley; Hardy, Louise; Farrell, Louise

    2008-12-01

    Overweight and obesity in Australia is an emerging health concern. Obesity prevention initiatives must consider both physical activity and nutrition to be effective. Community sports venues have the capacity to promote healthy lifestyles through physical activity as well as healthy food choices. A telephone survey was conducted on parents of children aged 5-17 years in NSW to determine the nature of food and beverages purchased by children at community sporting venues and to determine parent's perception of the role that government should play in regulating the types of food and beverages sold at these outlets. The majority of canteens at children's sporting venues were considered to sell mostly unhealthy food and beverages (53%). Very few parents reported that canteens sold mostly healthy food and beverages. Parents reported that their child's most frequently purchased food and beverage items at outdoor sports fields were water, chocolate and confectionery, soft drink and sports drinks, and ice cream. At community swimming pools the most frequently purchased items were ice cream, followed by snack foods, including chips, cakes and biscuits. Most parents (63%) agreed that government should restrict the types of food and beverages that can be sold at children's sporting venues. Children are receiving inconsistent health messages at sporting venues, with healthy lifestyles being promoted through sports participation, but unhealthy dietary choices being provided at sports canteens.

  7. Sport and active recreation injuries in Australia: evidence from emergency department presentations

    Science.gov (United States)

    Finch, C.; Valuri, G.; Ozanne-Smith, J.

    1998-01-01

    OBJECTIVE: Despite the rise in specialist clinical services for the management of sports and active recreation injury, many patients attend hospital emergency departments for treatment. The purpose of this study was to describe sports injury cases presented to selected hospital emergency departments around Australia for the period 1989-1993. METHODS: Routinely collected emergency department injury presentation data from the Australian National Injury Surveillance Unit were examined. Data on 98,040 sports and active recreation emergency department presentations were analysed. Sports and active recreation activities were ranked according to frequency of presentation. Relative proportions of injury type and body region injured were determined. Data are presented separately for children (15 years of age). RESULTS: Among the 10 activities that most commonly led to a sports or active recreation injury presentation for all ages were cycling, Australian football, basketball, soccer, cricket, netball, and rugby. For children, injuries were also commonly associated with roller skating/blading, skateboarding, and trampolining. Hockey, martial arts, and dancing injuries were frequent in adults. Most sporting injuries occurred during organised competition or practice whereas the active recreation injuries occurred in a variety of settings. Fractures, strains, and sprains, particularly to the lower and upper extremities, were common types of injury. CONCLUSION: The rich, but nevertheless limited, information available about sports and active recreation injuries from data collected in emergency departments indicates that these activities are a common context for injury at the community level in Australia. 


 PMID:9773170

  8. Sport and active recreation injuries in Australia: evidence from emergency department presentations.

    Science.gov (United States)

    Finch, C; Valuri, G; Ozanne-Smith, J

    1998-09-01

    Despite the rise in specialist clinical services for the management of sports and active recreation injury, many patients attend hospital emergency departments for treatment. The purpose of this study was to describe sports injury cases presented to selected hospital emergency departments around Australia for the period 1989-1993. Routinely collected emergency department injury presentation data from the Australian National Injury Surveillance Unit were examined. Data on 98,040 sports and active recreation emergency department presentations were analysed. Sports and active recreation activities were ranked according to frequency of presentation. Relative proportions of injury type and body region injured were determined. Data are presented separately for children (15 years of age). Among the 10 activities that most commonly led to a sports or active recreation injury presentation for all ages were cycling, Australian football, basketball, soccer, cricket, netball, and rugby. For children, injuries were also commonly associated with roller skating/blading, skateboarding, and trampolining. Hockey, martial arts, and dancing injuries were frequent in adults. Most sporting injuries occurred during organised competition or practice whereas the active recreation injuries occurred in a variety of settings. Fractures, strains, and sprains, particularly to the lower and upper extremities, were common types of injury. The rich, but nevertheless limited, information available about sports and active recreation injuries from data collected in emergency departments indicates that these activities are a common context for injury at the community level in Australia.

  9. Advanced active quenching circuit for ultra-fast quantum cryptography.

    Science.gov (United States)

    Stipčević, Mario; Christensen, Bradley G; Kwiat, Paul G; Gauthier, Daniel J

    2017-09-04

    Commercial photon-counting modules based on actively quenched solid-state avalanche photodiode sensors are used in a wide variety of applications. Manufacturers characterize their detectors by specifying a small set of parameters, such as detection efficiency, dead time, dark counts rate, afterpulsing probability and single-photon arrival-time resolution (jitter). However, they usually do not specify the range of conditions over which these parameters are constant or present a sufficient description of the characterization process. In this work, we perform a few novel tests on two commercial detectors and identify an additional set of imperfections that must be specified to sufficiently characterize their behavior. These include rate-dependence of the dead time and jitter, detection delay shift, and "twilighting". We find that these additional non-ideal behaviors can lead to unexpected effects or strong deterioration of the performance of a system using these devices. We explain their origin by an in-depth analysis of the active quenching process. To mitigate the effects of these imperfections, a custom-built detection system is designed using a novel active quenching circuit. Its performance is compared against two commercial detectors in a fast quantum key distribution system with hyper-entangled photons and a random number generator.

  10. Decreasing Sports Activity with Increasing Age? Findings from a 20-Year Longitudinal and Cohort Sequence Analysis

    Science.gov (United States)

    Breuer, Christoph; Wicker, Pamela

    2009-01-01

    According to cross-sectional studies in sport science literature, decreasing sports activity with increasing age is generally assumed. In this paper, the validity of this assumption is checked by applying more effective methods of analysis, such as longitudinal and cohort sequence analyses. With the help of 20 years' worth of data records from the…

  11. The impact of patellar tendinopathy on sports and work performance in active athletes

    NARCIS (Netherlands)

    De Vries, Astrid J; Koolhaas, Wendy; Zwerver, Johannes; Diercks, Ron L.; Nieuwenhuis, Kari; Van Der Worp, Henk; Brouwer, Sandra; Van Den Akker-Scheek, Inge

    2017-01-01

    Greater insight into sports and work performance of athletes with patellar tendinopathy (PT) will help establish the severity of this common overuse injury. Primary aim of this study is to investigate the impact of PT on sports and work performance. Seventy seven active athletes with PT (50 males;

  12. Sports Management Faculty External Grant-Writing Activities in the United States

    Science.gov (United States)

    DeVinney, Timothy P.

    2012-01-01

    This study was conducted to fill a void in information, provide relevant, current data for faculty members related to external grant-writing activities related to the academic field of sport management and serve as a tool that may aid in the advancement of external grant-writing efforts within the field of sport management. All data is specific to…

  13. Empowering youth sport environments: Implications for daily moderate-to-vigorous physical activity and adiposity

    Directory of Open Access Journals (Sweden)

    Sally A.M. Fenton

    2017-12-01

    Conclusion: Fostering more empowering youth sport environments may hold implications for the prevention of excess adiposity, through encouraging higher habitual MVPA engagement. Findings may inform the optimal design of youth sport settings for MVPA promotion, and contribute towards associated healthy weight maintenance amongst youth active in this context. Longitudinal and intervention studies are required to confirm these results.

  14. Footballs versus Barbies: Childhood Play Activities as Predictors of Sport Participation by Women.

    Science.gov (United States)

    Guiliano, Traci A.; Popp, Kathryn E.; Knight, Jennifer L.

    2000-01-01

    Examined the extent to which women's childhood play activities predicted future sport participation. College athletes and nonathletes completed a survey on childhood play and adult sports experiences. Playing with masculine toys and games, playing in predominantly male or mixed groups, and being a tomboy characterized women who later became…

  15. Field dependence-independence as related to young women's participation in sports activity.

    Science.gov (United States)

    Lambrecht, Jeanne L; Cuevas, Jacqueline L

    2007-06-01

    To estimate association between field dependence-independence measured by scores on the Group Embedded Figures Test and young women's participation in sports activity. Participants were 37 undergraduate college women between the ages of 18 and 25 years (M=21). Participants were categorized into two groups, one high in participation in sports activity and one low. A one-tailed independent samples t test yielded no significant difference. Correlations of .36 and .18 were significant but account for little common variance. An ad hoc analysis performed without participants who reported softball activity but who were highly involved in sport activities was significant.

  16. Copper is an endogenous modulator of neural circuit spontaneous activity.

    Science.gov (United States)

    Dodani, Sheel C; Firl, Alana; Chan, Jefferson; Nam, Christine I; Aron, Allegra T; Onak, Carl S; Ramos-Torres, Karla M; Paek, Jaeho; Webster, Corey M; Feller, Marla B; Chang, Christopher J

    2014-11-18

    For reasons that remain insufficiently understood, the brain requires among the highest levels of metals in the body for normal function. The traditional paradigm for this organ and others is that fluxes of alkali and alkaline earth metals are required for signaling, but transition metals are maintained in static, tightly bound reservoirs for metabolism and protection against oxidative stress. Here we show that copper is an endogenous modulator of spontaneous activity, a property of functional neural circuitry. Using Copper Fluor-3 (CF3), a new fluorescent Cu(+) sensor for one- and two-photon imaging, we show that neurons and neural tissue maintain basal stores of loosely bound copper that can be attenuated by chelation, which define a labile copper pool. Targeted disruption of these labile copper stores by acute chelation or genetic knockdown of the CTR1 (copper transporter 1) copper channel alters the spatiotemporal properties of spontaneous activity in developing hippocampal and retinal circuits. The data identify an essential role for copper neuronal function and suggest broader contributions of this transition metal to cell signaling.

  17. Exercise Participation Motives and Engaging In Sports Activity among University of Ljubljana Students

    Science.gov (United States)

    Cerar, Katja; Kondrič, Miran; Ochiana, Nicolae; Sindik, Joško

    2017-01-01

    AIM: The main aim of this study was to examine differences in sport participation motives, the frequency of engaging in sports activities according to gender, region and field of study, but also the association between the incidence of engaging in sports activity and the motivation for sports activity of students at the University of Ljubljana. MATERIAL AND METHODS: Five thousand two hundred seventy-one students completed The Exercise Motivations Inventory (EMI-2), with additional questions about 12 socio-demographic parameters. RESULTS: The results reveal that most of the students are engaged in unorganized sports activities. Male students engage in sports activity more often than female students do. For male students, dominant participation motives are enjoyment, challenge, social recognition, affiliation, competition and strength but also endurance, for female students these are: stress and weight management, revitalisation, ill-health avoidance, positive health, appearance and nimbleness. Gender differences in participation motives are partly reflected also in differences according to the field of study. The correlations between the frequency of engaging in sports activity and the participation motives are mainly statistically significant. We did not find any significant differences in participation motives by region. CONCLUSION: In spite of these discouraging findings, increasing physical activity among students continues to be a national priority. PMID:29104693

  18. Return to recreational sports activity after anterior cruciate ligament reconstruction: a one- to six-year follow-up study.

    Science.gov (United States)

    Rodríguez-Roiz, Juan M; Caballero, Miguel; Ares, Oscar; Sastre, Sergi; Lozano, Luis; Popescu, Dragos

    2015-08-01

    The aim of this study was to evaluate mid-term return to recreational sport in general population and identify factors related with sports return. Retrospective evaluation of 99 recreational sports players (Tegner score of 6) with ACL arthroscopic reconstructions with hamstring autograft, between 2006-2011. 74 male and 25 female with middle age of 30 years (14-52). We made a questionnaire focused on sports level before injury and after surgery, and different scales: Lysholm, Tegner Activity Level, IKDC and a Likert scale for quantify their motivation for return to sports. With a medium follow-up of 36 months, 90 patients (91.9 %) had returned to recreational sport. 51 (51.52 %) had returned to sports at the same level, and these are those with lower BMI (average 23), higher IKDC and Lysholm scores (p sport is an important activity. Only 9 % of patients left sports. They were principally male athletes (88 %), with higher medium age (32), lesser time between injury and surgery (22 months), higher BMI (26), in comparison with athletes that return to sports. The results suggest good mid-term return to recreational sports in general population. The following factors had a statistically significant influence on the return to sports activity: type of sport, sex and functional state of the operated knee (IKDC-Lysholm). Psychological and social factors may have a fundamental influence on return to sports activity.

  19. Sports Activities High Performance Athletes Muslim Women in Indonesia and Malaysia

    Science.gov (United States)

    Fitri, M.; Sultoni, K.; Salamuddin, N.; Taib Harun, Mohd

    2017-03-01

    Participation in sports activities was also influenced by sociological factors. This indirectly allows individuals more adaptable in high performance sports compared with individuals who did not engage in sports activities. This study aims to identify high performance sports athletes Muslim women in Indonesia and Malaysia in the sport. The quantitative approach was carried out by the study population consisted of Muslim women athletes Malaysia and Indonesia, which joined The 3rd Islamic Solidarity Games. The study sample consisted of 58 Malaysia and 57 Indonesia. Descriptive analysis also shows that sports activities like Muslim women athletes in the ranking of badminton (Malaysia 46.5% and Indonesia 38.6%), swimming (Malaysia 33.3% and Indonesia 57.9%), sports (Malaysia 27.5% and Indonesia at 22.8%), and balls volleyball (Malaysia and Indonesia 17.2%, 29.8%). The results of this study can serve as a guide for the government to make sports facilities more attractive community of Muslim women.

  20. Sport activity and eating habits of people who were attending special obesity treatment programme.

    Science.gov (United States)

    Videmsek, Mateja; Stihec, Joze; Karpljuk, Damir; Starman, Anja

    2008-09-01

    The aims of the study were to analyse the sport activity and eating habits of obese people in their childhood and adulthood. The research was underpinned by a survey questionnaire containing 37 variables which was completed by 71 people attending the obesity programme. The frequencies and contingency tables were calculated, whereas statistical significance was established at a 5% significance level. The analysis of the results showed that more than one-half of the survey respondents joined the obesity programme primarily for reasons of health and well-being. Most obese people did not engage in any organised sport activity in their childhood, nor did most of their parents. The respondents practiced sport in their childhood to a greater extent if their parents were also physically active and if they guided and encouraged their children. No less than one-third of the respondents were overweight in their childhood, of whom two-thirds did not participate in any organised sport activity. The majority of the respondents (85.9%) are currently engaged in an organised sport activity in their adulthood, mainly due to their participation in the weight reduction programme; most of them practice sport twice a week. Their eating habits are encouraging; the share of skipped meals is considerably lower and practically negligible compared to that in childhood. It has to be emphasized that most of them are of opinion that obese people have difficulties finding expert information on obesity, nutrition and sport activities as well as weight management centers and institutions.

  1. The impact of urinary stress incontinence in young and middle-age women practising recreational sports activity: an epidemiological study.

    Science.gov (United States)

    Salvatore, S; Serati, M; Laterza, R; Uccella, S; Torella, M; Bolis, P-F

    2009-12-01

    To evaluate the prevalence of urinary stress incontinence (USI) in menstruating women practising recreational sports activity, to detect specific sports with a stronger association with urinary incontinence (UI) and to evaluate risk factors possibly related to this condition. Epidemiological study. Non-competitive sports organisations in the province of Varese, Italy. 679 women of fertile age, practising recreational sports activity. Anonymous questionnaire on UI. The questionnaire included questions about patients' general characteristics, occurrence of UI in relation to sport or daily general activities, time of onset of this condition, frequency of leakage episodes, correlation of incontinence with types of movements or sports, subjective impression of being limited on such occasions and/or necessity to modify the type of sport. UI was reported by 101 women (14.9%). Of these, 32 (31.7%) complained of UI only during sports activity, 48 (47.5%) only during daily life and 21 (20.8%) in both circumstances. Body mass index and parity were significantly associated with the risk of UI. Looking at the different sports activities, a higher rate of incontinence was found in women participating in basketball (16.6%), athletics (15%), and tennis or squash (11%). 10.4% of women abandoned their favourite sport, because of USI, and a further 20% limited the way they practised their favourite sport to reduce leakage episodes. Female UI affects a significant proportion of young women practising non-competitive sports activity; it can cause abandonment of the sport or limitation of its practice.

  2. Differences in Motivation for Participating Sport Activities According to Sport Branches

    Directory of Open Access Journals (Sweden)

    Sabri KAYA

    2015-03-01

    Full Text Available The purpose of this study was to examine the participation motives of youth from different sport branches and examine the differences with respect to different demographic variables. The study was conducted on 85 girls and 202 boys from different sport branches in Turkey. The average age of the participants were 14.29 years (SD=1.1. The “Participation Motivation Questionnaire (PMQ” (Gill, Gross and Huddleston (1983 was administered on the participants. The reliability and validity of the PMQ was tested by Oyar, Aşçı, Çelebi and Mülazımoğlu (2001. The scale consisted of 30 items and 8 subscales. All items were measured and sorted using a three-point Likert scale. Descriptive statistics and were performed on all variables including means and standard deviations. Independent Samples t-test was also used to determine differences between the scores acquired from the scale and some independent variables. Analysis indicated significant differences in achievement/status (t= 2.71; p < 0.05, team affiliation (t= 2.12; p < 0.05 and friendship (t= 3.81; p < 0.01 subscales between girls and boys. Boys had higher scores than the girls. There were significant differences in achievement/status (t= 2.52; p < 0.01, team affiliation (t= 2.33; p < 0.01, energy release/fitness (t= 2.33; p < 0.05 and competition (t= 2.50; p < 0.01 subscales with regard to sport experience. Less experienced participants had lower scores than the more experienced. As a result, it can be concluded that based on the mean ratings of each of the 30 participation motives, “improve my skills” and “to raise my sport branch” were the most important participation motives for the participants.

  3. Gender Differences in Popularity and Engagement in Sport Activities among Students

    Directory of Open Access Journals (Sweden)

    Matej Majerič

    2016-10-01

    Full Text Available The main purpose of this research was to analyse the gender differences among students at the University of Ljubljana concerning the popularity of sports and participation in different types and modes of sport activities. The research was done in the 2013 academic year on a random sample of 3% of the students (N=1390. A questionnaire about students’ lifestyles was used (Majerič, 2013. In this study, two variables were analysed: the popularity of different sport activities, and different types and modes of sport activities. The data of the variables were analysed with SPSS for Windows. The basic statistical parameters for both variables were calculated. To calculate the gender differences, a t-test for independent samples and a Mann-Whitney U test were run. An analysis of the popularity of different sport activities showed that gender differences were statistically significant in jogging (p=0.000, walking (p=0.000, football (p=0.000, basketball (p=0.000, fitness (p=0.001, aerobics (p=0.002, and dance activities (p=0.009. Analysis of the types and modes of sport activities among students showed that 63.90% of male students and 68.10% of female students were engaged in unorganized types of sport. Gender differences were found to be statistically significant in two types of sport activities: engaged organized in clubs–competitive out of faculty (p=0.000 and engaged in sport organized at the faculty–competitive (p=0.000. Our findings and conclusions provide useful guidance for the closer and wider professional public.

  4. EFFECTS OF SPORTS AND SCIENCE HIGH SCHOOL STUDENTS’ SPORTS ACTIVITY LEVELS ON BODY COMPOSITION AND BONE MINERAL DENSITY

    Directory of Open Access Journals (Sweden)

    Hasan Aykut AYSAN

    2015-08-01

    Full Text Available Purpose: In this study, effects of sports and science high school students’ sports activity levels on their body composition and bone development level were investigated. Material and Method: A total of 59 participants were voluntarily included in the study in which 29 people were the experimental group from Elazıg Kaya Karakaya Sports High School with a mean age of 17.10±1.25 (years and 30 people were the control group fr om Diyarbakır RekabetKurumu High School with a mean age of 17.70±1.67 (years . Sports activity of Sports High school students was found to include (in the first two years 384 hours, a total of 1088 hours in four years and sports activity of science high s chool students was found to include ( in the first 2 years 94, a total of 158 hours in four years. Those who had any disease that could have an effect on their bone mineral density and body compositions were not included in the study. Height and weight w ere measure with standardSecaStadiometre . Body Mass Index (BMI, Basal Metabolic Rate (BMR, Body Fat Percentage (BFP, Body Fat Mass (BFM, Fat - Free Body Mass (FBM, Total Body Water (TBW , which constitute body composition and are accepted as sub parame ters, were measured with Bioelectrical Impedance Analyser (BIA - Tanita BC 418 . Bone densitometry device (DEXA; Hologic Discovery 4500 QDR was used in the measurements of bone mineral density. SPSS 16.0 was used in the process of the raw data obtained and T - Test was applied for independent samples. Findings : HEIGHT, WEIGHT, BMI, BMR, %BFP, BFM, FBM, TBW measured mean values of the E xperimental group are 171.62±7.078 (cm, 58.88±8.679 (kg, 19.89±1.745 (kg/m², 3435.6 ± 2660.55 (kcal, 13.64±2.446 (%,8.100± 2.150 (kg, 50.81±7.165 (kg respectively. HEIGHT, WEIGHT, BMI, BMR, %BFP, BFM, FBM, TBW measured mean values of the Control group are 170.21±8.514 (cm, 59.77±9.749 (kg, 19.63±1.439 (kg/m², 2362.85 ± 2010.71 (kcal, 13.83±2.556 (%, 8.048±1.708 (kg, 5 0

  5. Sporting Activity Is Reduced 11 Years After First-Generation Autologous Chondrocyte Implantation in the Knee Joint

    DEFF Research Database (Denmark)

    Erdle, Benjamin; Herrmann, Simon; Porichis, Stella

    2017-01-01

    BACKGROUND: Little is known about long-term sporting activity after periosteal autologous chondrocyte implantation (ACI-P) and its correlation to clinical, morphological, and ultrastructural cartilage characteristics on magnetic resonance imaging (MRI). PURPOSE: To evaluate long-term sporting...

  6. Athlete and Coach Relationship as a Factor of the Success in Sports Activities

    Directory of Open Access Journals (Sweden)

    Svetlova A.A.,

    2014-11-01

    Full Text Available We present the results of a theoretical analysis of the psychological bases of success of athletes. We provide an overview of studies of the factors influencing the success of the activities in the sport. Sports activities are considered as a joint activity of athlete and coach, the success of which is affected by the personal qualities and characteristics of the relationship of its members. We summarize the main approaches to the study of personality and social psychological aspects of successful athletes and coaches. As the main factors in the success of sports activities, we considered individual psychological characteristics of athletes (motives, attitudes, modes of behavior and response, and socio-psychological characteristics of the interaction of coach and athlete (leadership style, the nature of interpersonal relationships and role expectations. We emphasize the importance of mutual role expectations of athlete and coach to achieve high results of sports activity.

  7. Sport and physical activity following unicompartmental knee arthroplasty: a systematic review.

    Science.gov (United States)

    Waldstein, Wenzel; Kolbitsch, Paul; Koller, Ulrich; Boettner, Friedrich; Windhager, Reinhard

    2017-03-01

    Unicompartmental knee arthroplasty (UKA) can be a surgical treatment option for patients with high expectations regarding the post-operative level of physical activity. A systematic review was undertaken to answer three research questions: (1) is there an improvement of physical activity based on validated activity scores following UKA? (2) What are the sport disciplines and the sport patterns of UKA patients? (3) What are the pre- and post-operative sport participation rates and the return to activity rates of UKA patients? Following the PRISMA guidelines, EMBASE, MEDLINE, ISI Web of Science and the Cochrane Central Register of Controlled Trials were searched for studies reporting the level of sport and/or physical activity before and after UKA, and/or included at least one activity score before and after UKA. Seventeen studies were identified reporting on 2972 UKAs, of which 89 % were medial UKAs and 92 % were mobile-bearing implants, respectively. Ten studies reported a statistically significant improvement of physical activity following UKA according to the UCLA activity score, the Tegner activity score or the High Activity Arthroplasty Score, respectively. Hiking, cycling and swimming are the most common activities following UKA. Sport participation before the onset of restricting symptoms ranged from 64 to 93 % and slightly decreased by 2-9 % following UKA. The return to activity rate ranged from 87 to 98 %. Patients following UKA are physically active according to validated activity scores. A significant increase in low-impact activities and a decrease in high-impact activities after UKA was observed. Patients with a UKA regularly participate in sports; however, sport participation slightly decreased compared to pre-arthritic levels. This systematic review helps physicians to manage the expectations of patients regarding the level of physical activity following UKA. III.

  8. Daily participation in sports and students' sexual activity.

    Science.gov (United States)

    Habel, Melissa A; Dittus, Patricia J; De Rosa, Christine J; Chung, Emily Q; Kerndt, Peter R

    2010-12-01

    Previous studies suggest that student athletes may be less likely than nonathletes to engage in sexual behavior. However, few have explored sexual risk behavior among athletes in early adolescence. In 2005, a sample of 10,487 students in 26 Los Angeles public middle and high schools completed a self-administered survey that asked about their demographic characteristics, sports participation, sexual behaviors and expectations, and parental relationships. Chi-square analyses compared reported levels of daily participation in sports, experience with intercourse, experience with oral sex and condom use at last intercourse by selected characteristics. Predictors of sexual experience and condom use were assessed in multivariate logistic regression analyses. One-third of students reported daily participation in sports. This group had higher odds of ever having had intercourse and ever having had oral sex than their peers who did not play a sport daily (odds ratios, 1.2 and 1.1, respectively). The increases in risk were greater for middle school sports participants than for their high school counterparts (1.5 and 1.6, respectively). Among sexually experienced students, daily sports participants also had elevated odds of reporting condom use at last intercourse (1.4). Students as young as middle school age who participate in sports daily may have an elevated risk for STDs and pregnancy. Health professionals should counsel middle school athletes about sexual risk reduction, given that young students may find it particularly difficult to obtain contraceptives, STD testing and prevention counseling. Copyright © 2010 by the Guttmacher Institute.

  9. Sport and measurement of competition

    NARCIS (Netherlands)

    Koning, R.H.

    Sport is becoming an activity of increasing importance: over time more people participate in sport (active sport consumption), more time is spent watching sport (passive sport consumption). An important part of sport consumption is passive sport consumption where production and consumption are

  10. Evaluation of the role of Care Sport Connectors in connecting primary care, sport, and physical activity, and residents' participation in the Netherlands

    NARCIS (Netherlands)

    Smit, E.; Leenaars, K.E.F.; Wagemakers, M.A.E.; Molleman, G.R.M.; Koelen, M.A.; Velden, Van Der J.

    2015-01-01

    Background: The number of people with one or more chronic diseases is increasing, but this trend could be reduced by promoting physical activity. Therefore, in 2012, the Dutch Ministry of Health, Welfare, and Sport introduced Care Sport Connectors (CSCs), to whom a broker role has been ascribed.

  11. Adverse Effects of Common Sports and Recreational Activities on Male Reproduction.

    Science.gov (United States)

    Panara, Kush; Masterson, John M; Savio, Luis F; Ramasamy, Ranjith

    2018-05-03

    Male factor infertility plays a significant role in infertility. Many factors have been associated with male infertility; however, the link between many sports and recreational factors and male reproduction remains poorly characterized. To evaluate the current literature regarding the impact of many common sports and recreational factors on male reproduction. A comprehensive PubMed and Embase search for relevant articles published between 1970 and 2017 was performed by combining the following search terms: male, sports (including individual sports), traumatic brain injury, sauna, hot tub, fertility, erectile dysfunction, varicocele, environment, cell phone, and laptop computer. Hypogonadism and erectile dysfunction can be associated with sports with high rates of head injuries, such as American football. Although early reports linked other sports, such as bicycling, to erectile dysfunction, subsequent studies isolated these associations to sports cycling rather than recreational cycling. Certain sports (football, basketball, handball, and volleyball) were linked to increasing prevalence and severity of varicocele, offering a potential link to male infertility. In addition, recreational activities such as sauna, hot tubs, Jacuzzis, heated car seats, and laptop use were associated with high testicular temperature, which can impair spermatogenesis. Radio frequency electromagnetic waves from cell phones and laptops have also been shown to have deleterious effects on sperm viability and motility. Many common sports and daily activities represent potential sources of male infertility. Clinicians should be aware of these associations in explaining idiopathic infertility in males. Male infertility is an often overlooked component of a couple's inability to conceive. We outline many common and often overlooked sports and recreational exposures that have been associated with male infertility. Copyright © 2018 European Association of Urology. Published by Elsevier B.V. All

  12. National approaches to promote sports and physical activity in adults with disabilities: examples from the Netherlands and Canada.

    Science.gov (United States)

    Hoekstra, Femke; Roberts, Lynn; van Lindert, Caroline; Martin Ginis, Kathleen A; van der Woude, Lucas H V; McColl, Mary Ann

    2018-01-15

    This study described how the Dutch and Canadian governments promote high performance sports, recreational sports, and physical activity (PA) among adults with disabilities on a national level. An internet-based study was conducted to identify and select relevant documents and websites containing information about the national approach to promote disability sports and physical activities in the Netherlands and Canada. Both governments promote high performance sports in similar ways, but use different strategies to promote recreational sports and physical activities. The Dutch approach is characterized by using time-limited programs focusing on enhancement of sports infrastructure and inter-sector collaboration in which municipalities have key roles. The Canadian government promotes recreational sports in disabled populations by supporting programs via bilateral agreements with provinces and territories. Furthermore, the level of integration of disability sports into mainstream sports differs between countries. The findings of this study may inspire policy makers from different countries to learn from one another's policies in order to optimize national approaches to promote disability sports and PA on all levels. Implications for rehabilitation It is recommended for policy makers of national governments to develop and implement policy programs that promote sports and physical activities among people with disabilities because of its potential impact on functioning, participation, quality of life, and health. Insight into national approaches to promote sport and physical activities is relevant for rehabilitation practice to understand ongoing opportunities for people with disabilities to stay physically active after rehabilitation through participation in home and/or community-based sport and physical activities. It seems worthwhile to integrate activities to promote sport and physical activities in rehabilitation in such a way that it fits with the current

  13. Top 10 Research Questions Related to Preventing Sudden Death in Sport and Physical Activity.

    Science.gov (United States)

    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.

  14. How Sport and Physical Activity Education Could Contribute to Human Survival

    Directory of Open Access Journals (Sweden)

    Earle F. Zeigler

    2014-10-01

    Full Text Available Sport and related physical activity education are not being employed in the best possible ways in the developed world because the decision-makers in society don’t truly understand the situation. Illogically, people of all ages in the developed world are not getting sufficient physical activity, whereas those in the undeveloped world are getting too much! In addition, the author questions the vast overemphasis on highly competitive sport at the various levels including the Olympic Games. Further, the situation for the majority of “special-needs” people is poor including those who are exploited by sport competition overemphasis. Six different types of selected competencies are recommended for all children and youth within the educational-system experience. Finally, the author asks five specific questions that should be considered as we seek to improve the overall situation. Keywords: sport and physical activity education, memes, the Olympic Games

  15. Participation by US adults in sports, exercise, and recreational physical activities.

    Science.gov (United States)

    Ham, Sandra A; Kruger, Judy; Tudor-Locke, Catrine

    2009-01-01

    Given the evidence that regular physical activity produces substantial health benefits, participation in sports, exercise, and recreation is widely encouraged. The objective of this study was to describe participation in sports, exercise, and recreational physical activities among US adults. Data from 2 national surveys of respondents age 18 years and older were analyzed. Respondents to the American Time Use Survey (ATUS) from 2003 through 2005 (N=45,246) reported all activities on 1 randomly selected survey day. Respondents to the National Health and Nutrition Examination Survey (NHANES) from 1999 through 2004 (N=17,061) reported leisure-time physical activities in the 30 days before the interview. One-quarter of adults participated in any sport, exercise, or recreational activity on a random day, and 60.9% of adults participated in any leisure-time activity in the previous 30 days. The most common types of activities were walking, gardening and yard work, and other forms of exercise. The sports and recreational activities had typical durations of 1/2 to 3 hours per session, and the exercise activities typically lasted 1 hour or less. The prevalence of sports, exercise, and recreational physical activities is generally low among US adults; exercise is the most commonly reported type of activity.

  16. Getting kids active by participating in sport and doing It more often: focusing on what matters

    Directory of Open Access Journals (Sweden)

    Mandic Sandra

    2012-07-01

    Full Text Available Abstract Background Reduced time dedicated to physical education and free play in recent decades emphasizes the need to promote opportunities for sport participation in adolescents in order to increase physical activity levels. The purpose of this study was to examine the association of sociodemographic and biological characteristics, behavioural patterns, and school-related and sport-specific variables with time spent participating in sport. Methods A total of 1837 secondary school students (age: 14.6 ± 1.2 years; 50.9 % boys from 19 of 23 schools in the Otago Region (New Zealand completed an online sport survey and Youth Physical Activity Questionnaire in 2009. Using multilevel modeling, we examined the association of individual-, school- and sport-related variables on sport participation and the amount of time spent in sports. Results Higher rates of sport participation were associated with lower neighbourhood deprivation scores (OR (95%CI: 0.75 (0.49-1.14, 0.57 (0.38-0.86, 0.48 (0.28-0.81, higher quintiles of physical activity (2.89 (2.10-3.96, 2.81 (1.68-4.70, 3.54 (2.24-5.57, 3.97 (1.99-7.95, highest quintiles of screen time (1.58 (0.94-2.65, 1.99 (1.42-2.80, 2.17 (1.43-3.30, 1.88 (1.37-2.57 and boys only school status (2.21 (1.57-3.10. Greater amount of time spent in sports was associated with male gender (0.56 (0.43-0.74, lower neighbourhood deprivation scores (0.72 (0.59-0.93, 0.78 (0.58-1.04, 0.62 (0.39-1.00, higher quintiles of physical activity (3.18 (2.29-4.41, 4.25 (2.91-6.20, 8.33 (5.58-12.44, 6.58 (4.07-10.64, highest quintile of screen time (1.83 (1.31-2.56, greater availability of sports outside school (1.68 (1.22-2.32, better sport management (2.57 (1.63-4.07 and provision of sport courts at school (0.57 (0.40-0.81. Conversely, obesity was associated with less time spent participating in sport (0.50 (0.31-0.80. Conclusion Results support the use of sport participation as an effective strategy to increase physical

  17. Getting kids active by participating in sport and doing It more often: focusing on what matters

    Science.gov (United States)

    2012-01-01

    Background Reduced time dedicated to physical education and free play in recent decades emphasizes the need to promote opportunities for sport participation in adolescents in order to increase physical activity levels. The purpose of this study was to examine the association of sociodemographic and biological characteristics, behavioural patterns, and school-related and sport-specific variables with time spent participating in sport. Methods A total of 1837 secondary school students (age: 14.6 ± 1.2 years; 50.9 % boys) from 19 of 23 schools in the Otago Region (New Zealand) completed an online sport survey and Youth Physical Activity Questionnaire in 2009. Using multilevel modeling, we examined the association of individual-, school- and sport-related variables on sport participation and the amount of time spent in sports. Results Higher rates of sport participation were associated with lower neighbourhood deprivation scores (OR (95%CI): 0.75 (0.49-1.14), 0.57 (0.38-0.86), 0.48 (0.28-0.81)), higher quintiles of physical activity (2.89 (2.10-3.96), 2.81 (1.68-4.70), 3.54 (2.24-5.57), 3.97 (1.99-7.95)), highest quintiles of screen time (1.58 (0.94-2.65), 1.99 (1.42-2.80), 2.17 (1.43-3.30), 1.88 (1.37-2.57)) and boys only school status (2.21 (1.57-3.10)). Greater amount of time spent in sports was associated with male gender (0.56 (0.43-0.74), lower neighbourhood deprivation scores (0.72 (0.59-0.93), 0.78 (0.58-1.04), 0.62 (0.39-1.00)), higher quintiles of physical activity (3.18 (2.29-4.41), 4.25 (2.91-6.20), 8.33 (5.58-12.44), 6.58 (4.07-10.64)), highest quintile of screen time (1.83 (1.31-2.56), greater availability of sports outside school (1.68 (1.22-2.32)), better sport management (2.57 (1.63-4.07)) and provision of sport courts at school (0.57 (0.40-0.81)). Conversely, obesity was associated with less time spent participating in sport (0.50 (0.31-0.80)). Conclusion Results support the use of sport participation as an effective strategy to increase

  18. Getting kids active by participating in sport and doing it more often: focusing on what matters.

    Science.gov (United States)

    Mandic, Sandra; Bengoechea, Enrique García; Stevens, Emily; de la Barra, Sophia Leon; Skidmore, Paula

    2012-07-12

    Reduced time dedicated to physical education and free play in recent decades emphasizes the need to promote opportunities for sport participation in adolescents in order to increase physical activity levels. The purpose of this study was to examine the association of sociodemographic and biological characteristics, behavioural patterns, and school-related and sport-specific variables with time spent participating in sport. A total of 1837 secondary school students (age: 14.6 ± 1.2 years; 50.9 % boys) from 19 of 23 schools in the Otago Region (New Zealand) completed an online sport survey and Youth Physical Activity Questionnaire in 2009. Using multilevel modeling, we examined the association of individual-, school- and sport-related variables on sport participation and the amount of time spent in sports. Higher rates of sport participation were associated with lower neighbourhood deprivation scores (OR (95%CI): 0.75 (0.49-1.14), 0.57 (0.38-0.86), 0.48 (0.28-0.81)), higher quintiles of physical activity (2.89 (2.10-3.96), 2.81 (1.68-4.70), 3.54 (2.24-5.57), 3.97 (1.99-7.95)), highest quintiles of screen time (1.58 (0.94-2.65), 1.99 (1.42-2.80), 2.17 (1.43-3.30), 1.88 (1.37-2.57)) and boys only school status (2.21 (1.57-3.10)). Greater amount of time spent in sports was associated with male gender (0.56 (0.43-0.74), lower neighbourhood deprivation scores (0.72 (0.59-0.93), 0.78 (0.58-1.04), 0.62 (0.39-1.00)), higher quintiles of physical activity (3.18 (2.29-4.41), 4.25 (2.91-6.20), 8.33 (5.58-12.44), 6.58 (4.07-10.64)), highest quintile of screen time (1.83 (1.31-2.56), greater availability of sports outside school (1.68 (1.22-2.32)), better sport management (2.57 (1.63-4.07)) and provision of sport courts at school (0.57 (0.40-0.81)). Conversely, obesity was associated with less time spent participating in sport (0.50 (0.31-0.80)). Results support the use of sport participation as an effective strategy to increase physical activity levels and identify target

  19. Considering sport participation as a source for physical activity among adolescents.

    Science.gov (United States)

    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.

  20. Sports and leisure time physical activity during pregnancy in nulliparous women

    DEFF Research Database (Denmark)

    Hegaard, Hanne Kristine; Damm, Peter; Hedegaard, Morten

    2011-01-01

    included in the study at gestational week 33 from May 2004 to July 2005. Information was provided by self-administered questionnaires. Leisure time physical activity was categorised into four categories: competitive sport, moderate-to-heavy, light or sedentary. In this population of nulliparous women, 4......% participated in competitive sport, 25% in moderate-to-heavy activities, 66% in light activities, and 5% in sedentary activities in the year prior to pregnancy. Physical activity before pregnancy was statistically significantly associated with age, pre-pregnancy BMI, chronic diseases, number of years at school......, and smoking habits. The proportion of women who took part in competitive sports, and moderate-to-heavy activities decreased over the three trimesters of pregnancy. The proportion of women with light physical activity was stable during pregnancy while the proportion of women with sedentary activity increased...

  1. Sports activities and endurance capacity of bone tumor patients after rotationplasty.

    Science.gov (United States)

    Hillmann, Axel; Weist, Roger; Fromme, Albert; Völker, Klaus; Rosenbaum, Dieter

    2007-07-01

    To investigate the preferred types of sports activities of patients with rotationplasty and to measure their physiologic performance characteristics through treadmill ergometry. Cross-sectional, descriptive analysis and repeated measures of different velocities. Biomechanics research laboratory. Patients (n=61) with rotationplasty after bone tumor surgery, 30 of whom participated in a functional trial (treadmill), and a control group (n=20). Not applicable. Patients' participation in sports compared with that of the healthy population, treadmill performance at 2 or 3 different speeds, heart rate, lactate accumulation, oxygen consumption, ventilatory equivalent, efficiency, respiratory minute volume, and respiratory quotient. High activity in sports participation (85%) in most common sports (8 competitive, 17 sports club members, the remaining subjects were recreational athletes). At the same treadmill speed, lactate accumulation and all cardiorespiratory functions were higher in rotationplasty patients than in the control group. Patients can re-engage in a high level of physical activity after rotationplasty for bone tumor treatment. This physical activity is necessary if patients want to maintain or improve a desired level of sports activity.

  2. Correlates of habitual physical activity and organized sports in German primary school children.

    Science.gov (United States)

    Kobel, S; Kettner, S; Kesztyüs, D; Erkelenz, N; Drenowatz, C; Steinacker, J M

    2015-03-01

    The increased prevalence of childhood obesity has also been attributed to low physical activity (PA) levels. Understanding factors affecting child PA levels is especially important considering the benefits PA offers to youth. This study therefore examined different correlates affecting habitual PA and sports participation in primary school children. Height and weight were measured during a school visit in 1714 children (7.1 ± .6 years). PA and behavioural correlates were assessed by parental questionnaire. The effect of various correlates on PA as well as participation in organized sports was assessed using logistic regression analysis. Significant correlates of PA and sports participation were engagement in sporting activities outside of clubs and children's weight status. Playing outdoors for more than 60 min/day was significant for PA, having well educated parents and being male. Participation in sports was influenced by children's media consumption, active travel to school and having active parents. No influence was found for migration, income, parental weight status and health consciousness. In this study, a multiplicity of independent correlates of PA and sports participation, which require a broad approach to promote an active lifestyle, have been considered. Understanding these factors might support the development of effective health-promoting interventions. Copyright © 2014 The Authors. Published by Elsevier Ltd.. All rights reserved.

  3. Sport activity and the risk of breast cancer: results from a case - control study

    Directory of Open Access Journals (Sweden)

    J Kruk

    2003-03-01

    Full Text Available A case – control study of 257 women with breast cancer and 565 control women was conducted to investigate the effect of life-time sport activity on breast cancer risk. Information was collected by questionnaire about sports played, frequency of participation and duration. The activity levels were determined using frequency variable weighted for metabolic equivalents of energy expenditure (MET. Multivariate logistic regression analyses were used to compute odds ratios (ORs and 95% confidence intervals (CIs. A full assessment of confounding and effect modification was undertaken. The odds ratios for increasing tertiles of sport activity were 1.00 (referent, 0.50 (CI: 0.33-0.76 and 0.44 (CI: 0.28-0.64, respectively (P-trend = 0.000. Comparing sport active women to inactive women the OR was 0.49 (CI: 0.35-0.69. Models stratified according to body mass index, age at menarche, age at first full term pregnancy, intake of vegetables and fruits, and experience of stress were examined. In models stratified the risks of breast cancer were also reduced with higher levels of activity in sport. The conclusion is that women who participated in sports have a reduced risk of breast cancer.

  4. Importance of Folk Sports Teams in shaping the sports activity of rural areas young inhabitants in the Opole region in the years 2001-2010

    Directory of Open Access Journals (Sweden)

    Agnieszka Krawczyk-Sołtys

    2012-04-01

    Full Text Available In the times of progressing commercialization, the existing sports organizations – Sports Folk Teams – seem to be areas of pure sport. Rural areas sports activists and sportsmen themselves present an altruistic and open attitude towards sport. The activity of the team members is voluntary and is often of a charitable character since the main objective of local clubs is both active and attractive utilization of the young rural community’s free time. The teams in focus play a vital role in bringing up both children and youth; sport is not only a test of physical strength or abilities, it teaches action and acting, compromising attitudes and patterns of behaviour, as well as loyalty towards partners. The aim of the article was depicting the sports teams as a form of promoting sport among the young people of the Opole voivodeship in the period discussed. Additionally, the tasks realized in 2010 by the Opole Province Association (Local Country Teams, performed owing to the cooperation and support of the provincial marshal’s office, are presented here.

  5. The relationship between sports facility accessibility and physical activity among Korean adults

    Directory of Open Access Journals (Sweden)

    Sang Ah Lee

    2016-08-01

    Full Text Available Abstract Background The benefits of physical activity on physical and mental health are well known. The accessibility of sports facilities is reported to have considerable association with the amount of physical activity a person participates in. Therefore, we investigated the association between subjectively assessed accessibility of sports facilities and physical activity among Korean adults. Methods We obtained data from the 2012 Community Health Survey. Physical activity was measured based on weekly metabolic equivalent task (MET hours according to the International Physical Activity Questionnaire (IPAQ. Sociodemographic, economic, and health variables were used as covariates in a logistic regression model. Results A total 201,723 participants were included in this study. Participants with easy access to sports facilities participated in physical activity more often than those without easy access (OR = 1.16, 95 % CI 1.13–1.20. More physical activity was generally observed if participants had a history of depression or if participants were among the white-collar or urban subgroups. Conclusion Our results showed that the accessibility of sports facilities is associated with physical activity. Therefore, it is crucial to consider the accessibility of sports facilities when promoting an environment conducive to physical activity or designing programs for enhancing physical activity.

  6. Sports Digitalization

    DEFF Research Database (Denmark)

    Xiao, Xiao; Hedman, Jonas; Tan, Felix Ter Chian

    2017-01-01

    evolution, as digital technologies are increasingly entrenched in a wide range of sporting activities and for applications beyond mere performance enhancement. Despite such trends, research on sports digitalization in the IS discipline is surprisingly still nascent. This paper aims at establishing...... a discourse on sports digitalization within the discipline. Toward this, we first provide an understanding of the institutional characteristics of the sports industry, establishing its theoretical importance and relevance in our discipline; second, we reveal the latest trends of digitalization in the sports...

  7. [The heart in extreme sports: hyperbaric activity and microgravity].

    Science.gov (United States)

    Berrettini, Umberto; Landolfi, Angelo; Patteri, Giovanna

    2008-10-01

    The study of the cardiovascular and respiratory modifications in extreme environments could be useful for the understanding of the adaptive mechanisms of the body in particular conditions. The knowledge of how different environmental conditions in terms of extreme pressure, temperature and gravity modify the neurovegetative and cardiovascular system could be useful in daily practice for hypobaric and hyperbaric sports.

  8. Passive and active elements using fractional Lβ C α circuit

    KAUST Repository

    Radwan, Ahmed G.; Salama, Khaled N.

    2011-01-01

    this illustration to verify the cases discussed in part one; develop the generalized parameters for the bandpass filter response of the L βCα circuit, such as the resonance frequency and quality factor versus α-β plane; discuss sensitivity analyses with respect

  9. Child Protection in Sport: Reflections on Thirty Years of Science and Activism

    Directory of Open Access Journals (Sweden)

    Celia H. Brackenridge

    2014-07-01

    Full Text Available This paper examines the responses of state and third sector agencies to the emergence of child abuse in sport since the mid-1980s. As with other social institutions such as the church, health and education, sport has both initiated its own child protection interventions and also responded to wider social and political influences. Sport has exemplified many of the changes identified in the brief for this special issue, such as the widening of definitional focus, increasing geographic scope and broadening of concerns to encompass health and welfare. The child protection agenda in sport was initially driven by sexual abuse scandals and has since embraced a range of additional harms to children, such as physical and psychological abuse, neglect and damaging hazing (initiation rituals. Whereas in the 1990s, only a few sport organisations acknowledged or addressed child abuse and protection (notably, UK, Canada and Australia, there has since been rapid growth in interest in the issue internationally, with many agencies now taking an active role in prevention work. These agencies adopt different foci related to their overall mission and may be characterised broadly as sport-specific (focussing on abuse prevention in sport, children’s rights organisations (focussing on child protection around sport events and humanitarian organisations (focussing on child development and protection through sport. This article examines how these differences in organisational focus lead to very different child protection approaches and “solutions”. It critiques the scientific approaches used thus far to inform activism and policy changes and ends by considering future challenges for athlete safeguarding and welfare.

  10. Adolescents' physical activity: competition between perceived neighborhood sport facilities and home media resources.

    Science.gov (United States)

    Wong, Bonny Yee-Man; Cerin, Ester; Ho, Sai-Yin; Mak, Kwok-Kei; Lo, Wing-Sze; Lam, Tai-Hing

    2010-04-01

    To examine the independent, competing, and interactive effects of perceived availability of specific types of media in the home and neighborhood sport facilities on adolescents' leisure-time physical activity (PA). Survey data from 34 369 students in 42 Hong Kong secondary schools were collected (2006-07). Respondents reported moderate-to-vigorous leisure-time PA, presence of sport facilities in the neighborhood and of media equipment in the home. Being sufficiently physically active was defined as engaging in at least 30 minutes of non-school leisure-time PA on a daily basis. Logistic regression and post-estimation linear combinations of regression coefficients were used to examine the independent and competing effects of sport facilities and media equipment on leisure-time PA. Perceived availability of sport facilities was positively (OR(boys) = 1.17; OR(girls) = 1.26), and that of computer/Internet negatively (OR(boys) = 0.48; OR(girls) = 0.41), associated with being sufficiently active. A significant positive association between video game console and being sufficiently active was found in girls (OR(girls) = 1.19) but not in boys. Compared with adolescents without sport facilities and media equipment, those who reported sport facilities only were more likely to be physically active (OR(boys) = 1.26; OR(girls) = 1.34), while those who additionally reported computer/Internet were less likely to be physically active (OR(boys) = 0.60; OR(girls) = 0.54). Perceived availability of sport facilities in the neighborhood may positively impact on adolescents' level of physical activity. However, having computer/Internet may cancel out the effects of active opportunities in the neighborhood. This suggests that physical activity programs for adolescents need to consider limiting the access to computer-mediated communication as an important intervention component.

  11. Features of influence of sports activities on the identity of students

    Directory of Open Access Journals (Sweden)

    Sutula Vasilij

    2017-02-01

    Full Text Available Purpose: the definition of features of influence of sports activities on the identity of sportsmen. Material & Methods: the special surveys of students and teachers of KhSAPC, and also students, who train in sports club "Politekhnik", and the students who are engaged in sports sections NLA were conducted for the solution of purposes. Results: the most important qualities of the personality which sports activities influence are: formation of "confidence", "emotional stability", and "orientation to achievement" at sportsmen. According to most of the interviewed sportsmen and experts, the authority of the coach is not significant factor which influences the identity of sportsmen. Conclusions: it is established as a result of the conducted researches that sports activities most of all influence the formation of confidence, emotional stability and orientation to achievement at sportsmen. Results of the research demonstrate also that the identity of the sportsman is most influenced by the competitive relationship which develops in the course of competitive activity. Results of the research also indicate disturbing tendency which is shown that most of sportsmen connect the end of their sports career with injuries.

  12. The Role of Youth Sports in Promoting Children's Physical Activity and Preventing Pediatric Obesity: A Systematic Review.

    Science.gov (United States)

    Lee, Jung Eun; Pope, Zachary; Gao, Zan

    2018-01-01

    Youth sport participation plays an important role in promoting physical activity among children and may be a possible venue for the prevention of pediatric obesity. To design effective physical activity interventions, it is imperative to understand how different aspects of sport participation influence physical activity (PA). The purpose of this article is to present a comprehensive review of the impact of youth sport participation on children's PA and obesity status. A total of 44 studies published up to January 2014 concerning youth sport participation, PA, and obesity status were identified. Inclusion criteria were studies comparing PA levels of sport participants to nonparticipants or those comparing PA levels in different sport types and settings. Studies with the outcome variables of obesity status (e.g., body mass index, fat percentage, waist circumference) were also included. Participation in youth sport was positively associated with children's PA levels, and youth participating in sports were more likely to persist in their PA. However, the relationship between youth sport participation and obesity status was inconclusive. Educators and sports professionals should find ways to involve children in various sports settings and policies and help obese children engage more in sports.

  13. The impact of patellar tendinopathy on sports and work performance in active athletes.

    Science.gov (United States)

    De Vries, Astrid J; Koolhaas, Wendy; Zwerver, Johannes; Diercks, Ron L; Nieuwenhuis, Kari; Van Der Worp, Henk; Brouwer, Sandra; Van Den Akker-Scheek, Inge

    2017-01-01

    Greater insight into sports and work performance of athletes with patellar tendinopathy (PT) will help establish the severity of this common overuse injury. Primary aim of this study is to investigate the impact of PT on sports and work performance. Seventy seven active athletes with PT (50 males; age 28.1 ± 8.2 years; Victorian Institute of Sports Assessment Patella 56.4 ± 12.3) participated in this survey. Sports performance, work ability and work productivity were assessed using the Oslo Sports Trauma Research Center overuse injury questionnaire, the single-item Work Ability Index and the Quantity and Quality questionnaire, respectively. Reduced sports performance was reported by 55% of the participants; 16% reported reduced work ability and 36% decreased work productivity, with 23% and 58%, respectively, for physically demanding work. This study shows that the impact of PT on sports and work performance is substantial and stresses the importance of developing preventive measures.

  14. Sport and active recreation injuries in Australia: evidence from emergency department presentations

    OpenAIRE

    Finch, C.; Valuri, G.; Ozanne-Smith, J.

    1998-01-01

    OBJECTIVE: Despite the rise in specialist clinical services for the management of sports and active recreation injury, many patients attend hospital emergency departments for treatment. The purpose of this study was to describe sports injury cases presented to selected hospital emergency departments around Australia for the period 1989-1993. METHODS: Routinely collected emergency department injury presentation data from the Australian National Injury Surveillance Unit were examined. Dat...

  15. Diversity of leisure-time sport activities in adolescence as a predictor of leisure-time physical activity in adulthood.

    Science.gov (United States)

    Mäkelä, S; Aaltonen, S; Korhonen, T; Rose, R J; Kaprio, J

    2017-12-01

    Because sustained physical activity is important for a healthy life, this paper examined whether a greater diversity of sport activities during adolescence predicts higher levels of leisure-time physical activity (LTPA) in adulthood. From sport activity participation reported by 17-year-old twins, we formed five groups: 1, 2, 3, 4, and 5+ different sport activities. At follow-up in their mid-thirties, twins were divided into four activity classes based on LTPA, including active commuting. Multinomial regression analyses, adjusted for several confounders, were conducted separately for male (N=1288) and female (N=1770) participants. Further, conditional logistic regression analysis included 23 twin pairs discordant for both diversity of sport activities in adolescence and LTPA in adulthood. The diversity of leisure-time sport activities in adolescence had a significant positive association with adulthood LTPA among females. Membership in the most active adult quartile, compared to the least active quartile, was predicted by participation in 2, 3, 4, and 5+ sport activities in adolescence with odds ratios: 1.52 (P=.11), 1.86 (P=.02), 1.29 (P=.39), and 3.12 (P=5.4e-05), respectively. Within-pair analyses, limited by the small sample of twins discordant for both adolescent activities and adult outcomes, did not replicate the association. A greater diversity of leisure-time sport activities in adolescence predicts higher levels of LTPA in adulthood in females, but the causal nature of this association remains unresolved. © 2017 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  16. A High Step-Down Interleaved Buck Converter with Active-Clamp Circuits for Wind Turbines

    Directory of Open Access Journals (Sweden)

    Chih-Lung Shen

    2012-12-01

    Full Text Available In this paper, a high step-down interleaved buck coupled-inductor converter (IBCC with active-clamp circuits for wind energy conversion has been studied. In high step-down voltage applications, an IBCC can extend duty ratio and reduce voltage stresses on active switches. In order to reduce switching losses of active switches to improve conversion efficiency, a IBCC with soft-switching techniques is usually required. Compared with passive-clamp circuits, the IBCC with active-clamp circuits have lower switching losses and minimum ringing voltage of the active switches. Thus, the proposed IBCC with active-clamp circuits for wind energy conversion can significantly increase conversion efficiency. Finally, a 240 W prototype of the proposed IBCC with active-clamp circuits was built and implemented. Experimental results have shown that efficiency can reach as high as 91%. The proposed IBCC with active-clamp circuits is presented in high step-down voltage applications to verify the performance and the feasibility for energy conversion of wind turbines.

  17. Parental safety concerns--a barrier to sport and physical activity in children?

    Science.gov (United States)

    Boufous, Soufiane; Finch, Caroline; Bauman, Adrian

    2004-10-01

    To examine the extent to which parents and carers perceive injury and safety risks as serious enough to prevent or discourage their children, aged 5-12 years, from participating in sports/physical activity and to identify factors that influence these perceptions. An analysis of the 2001 New South Wales Child Health Survey. More than one-quarter of parents/ carers of active children aged 5-12 years reported discouraging or preventing children from playing a particular sport (34.7% for boys and 16.6% for girls) because of injury and safety concerns. In boys, the most frequently discouraged sport was rugby league (23.2%), followed by rugby union (7.5%) and Australian rules football (2.8%). Among girls, the most frequently discouraged activities were rollerblading (2.7%), rugby league (2.3%) and soccer (2.1%). Multivariate analysis shows that factors independently associated with parents' decision to prevent/discourage their child from engaging in sport/physical activity include their child's age and gender, language spoken at home, presence of disability, and the respondent's relation to the child. Efforts need to be made to modify some sports/ activities, such as football codes, in order to minimise injury and to ensure that children continue enjoying their favourite activity well into adulthood. Guidelines designed to promote physical activity among children and young adolescents need to take into account parental concerns regarding the associated risk of injury.

  18. Passive and active elements using fractional Lβ C α circuit

    KAUST Repository

    Radwan, Ahmed G.

    2011-10-01

    This paper introduces a qualitative revision of the traditional LC tank circuit in the fractional domain. The paper can be divided into six major parts, aiming in turn to establish the various conditions under which L βCα impedance may act as a resistor, negative resistor, or a positive or negative pure imaginary inductor or capacitor, in accordance to new frequency definitions; illustrate the process by which the phase response chooses the shortest path from initial to final phase, and use this illustration to verify the cases discussed in part one; develop the generalized parameters for the bandpass filter response of the L βCα circuit, such as the resonance frequency and quality factor versus α-β plane; discuss sensitivity analyses with respect to the fractional orders, as well as the time domain analyses for the impulse and step responses with their analytical formulas; and lastly, to propose some possible applications for this generalized circuit. Mathematical and PSpice simulation results are included to validate the discussion. © 2011 IEEE.

  19. Conductance and activation energy for electron transport in series and parallel intramolecular circuits.

    Science.gov (United States)

    Hsu, Liang-Yan; Wu, Ning; Rabitz, Herschel

    2016-11-30

    We investigate electron transport through series and parallel intramolecular circuits in the framework of the multi-level Redfield theory. Based on the assumption of weak monomer-bath couplings, the simulations depict the length and temperature dependence in six types of intramolecular circuits. In the tunneling regime, we find that the intramolecular circuit rule is only valid in the weak monomer coupling limit. In the thermally activated hopping regime, for circuits based on two different molecular units M a and M b with distinct activation energies E act,a > E act,b , the activation energies of M a and M b in series are nearly the same as E act,a while those in parallel are nearly the same as E act,b . This study gives a comprehensive description of electron transport through intramolecular circuits from tunneling to thermally activated hopping. We hope that this work can motivate additional studies to design intramolecular circuits based on different types of building blocks, and to explore the corresponding circuit laws and the length and temperature dependence of conductance.

  20. NASA SPoRT JPSS PG Activities in Alaska

    Science.gov (United States)

    Berndt, Emily; Molthan, Andrew; Fuell, Kevin; McGrath, Kevin; Smith, Matt; LaFontaine, Frank; Leroy, Anita; White, Kris

    2018-01-01

    SPoRT (NASA's Short-term Prediction Research and Transition Center) has collaboratively worked with Alaska WFOs (Weather Forecast Offices) to introduce RGB (Red/Green/Blue false color image) imagery to prepare for NOAA-20 (National Oceanic and Atmospheric Administration, JPSS (Joint Polar Satellite System) series-20 satellite) VIIRS (Visible Infrared Imaging Radiometer Suite) and improve forecasting aviation-related hazards. Last R2O/O2R (Research-to-Operations/Operations-to-Research) steps include incorporating NOAA-20 VIIRS in RGB suite and fully transitioning client-side RGB processing to GINA (Geographic Information Network of Alaska) and Alaska Region. Alaska Region WFOs have been part of the successful R2O/O2R story to assess the use of NESDIS (National Environmental Satellite, Data, and Information Service) Snowfall Rate product in operations. SPoRT introduced passive microwave rain rate and IMERG (Integrated Multi-satellitE Retrievals for GPM (Global Precipitation Measurement)) (IMERG) to Alaska WFOs for use in radar-void areas and assessing flooding potential. SPoRT has been part of the multi-organization collaborative effort to introduce Gridded NUCAPS (NOAA Unique CrIS/ATMS (Crosstrack Infrared Sounder/Advanced Technology Microwave Sounder) Processing System) to the Anchorage CWSU (Center Weather Service Unit) to assess Cold Air Aloft events, [and as part of NOAA's PG (Product Generation) effort].

  1. Does participation in organized sports predict future physical activity for adolescents from diverse economic backgrounds?

    Science.gov (United States)

    Walters, Stephanie; Barr-Anderson, Daheia J; Wall, Melanie; Neumark-Sztainer, Dianne

    2009-03-01

    To examine cross-sectional and longitudinal associations between socioeconomic status (SES), gender, sports participation and moderate-to-vigorous physical activity (MVPA) in adolescents. Project EAT (Eating Among Teens), a population-based longitudinal study followed a socioeconomically and ethnically diverse sample of 1709 adolescents in 1998-1999 (Time 1) and 2003-2004 (Time 2). Mixed model regression analyses were used to examine longitudinal trends in MVPA as a function of SES and previous sports involvement. For both genders, participation in organized sports and weekly hours of MVPA were positively associated with SES. On average, MVPA decreased between high school and young adulthood for both genders. Adolescents who participated in sports during high school showed a steeper decline in weekly hours of MVPA than their non-sports-participating counterparts. SES had a significant moderating effect on the change in MVPA over time for boys who participated in organized sports, with low SES boys showing a steeper decline in MVPA between time periods than higher SES boys. Although on average, a statistically significant difference in MVPA between previous sports participants and nonparticipants remained at Time 2, for all SES groups and both genders, the gap between hours of MVPA was either overcome or significantly narrowed by young adulthood. Increased dependence on organized sports for MVPA may be insufficient to meet the needs of youth following high school, especially for low SES youth. Designing physical activity promotions that reach and address the unique needs of lower SES youth and families is a public health priority.

  2. High school youth and suicide risk: exploring protection afforded through physical activity and sport participation.

    Science.gov (United States)

    Taliaferro, Lindsay A; Rienzo, Barbara A; Miller, M David; Pigg, R Morgan; Dodd, Virginia J

    2008-10-01

    Suicide ranks as the third leading cause of death for adolescents. Recent data from the Centers for Disease Control and Prevention (CDC) indicate that the adolescent suicide rate increased 18% between 2003 and 2004. Sport may represent a promising protective factor against adolescent suicide. This study examined the relative risk of hopelessness and suicidality associated with physical activity and sport participation. Data from the CDC's 2005 Youth Risk Behavior Survey were analyzed. Logistic regression modeling was used to compare the odds of hopelessness and suicidality in students who engaged in various levels of physical activity to inactive students. Similar analyses were performed comparing risks of athletes to nonathletes, and the risks of highly involved athletes to nonathletes. Findings showed that frequent, vigorous activity reduced the risk of hopelessness and suicidality among male adolescents. However, low levels of activity actually increased the risk of feeling hopeless among young females. Yet, for both males and females, sport participation protected against hopelessness and suicidality. These findings indicate that involvement in sport confers unique psychosocial benefits that protect adolescents against suicidality. Findings suggest that mechanisms other than physical activity contribute to the protective association between sport and reduced suicidality. Social support and integration may account for some of the differences found in suicidality between athletes and nonathletes.

  3. Daily physical activity and sports participation among children from ethnic minorities in Denmark.

    Science.gov (United States)

    Nielsen, Glen; Hermansen, Bianca; Bugge, Anna; Dencker, Magnus; Andersen, Lars Bo

    2013-01-01

    The purpose of this study was to investigate whether Danish children from immigrant backgrounds are less physically active than children from the ethnic majority, and to investigate the possible reasons for any differences found. Accelerometer measures of physical activity as well as questionnaire data about organised sports, family demography, resources and values were collected from 594 children of whom 67 had other ethnic background than Danish. Data were collected when the children were 6-7 years old and again later when the children were 9-10 years old. It was found that children from immigrant backgrounds were not less physically active than other children when their amounts of daily physical activity were measured by direct objective measures, despite their participation rate in organised sports being much lower. Using multiple logistic regression modelling, this study showed that lack of parental experience with organised sports and lack of economic/material resources explained much of the difference in sports participation. Children of immigrant background had significant lower participation in club sports but this did not affect their overall physical activity level.

  4. Sports activity after surgical treatment of intra-articular tibial plateau fractures in skiers.

    Science.gov (United States)

    Loibl, Markus; Bäumlein, Martin; Massen, Felix; Gueorguiev, Boyko; Glaab, Richard; Perren, Thomas; Rillmann, Paavo; Ryf, Christian; Naal, Florian D

    2013-06-01

    Tibial plateau fractures occur frequently while participating in winter sports, but there is no information on whether skiers can resume sports and recreational activities after internal fixation of these fractures. Skiers can resume low-impact sports activity after internal fixation of tibial plateau fractures. Case series; Level of evidence, 4. A total of 103 patients were surveyed by postal questionnaires to determine their sports activities at a mean of 7.8 ± 1.8 years after internal fixation of intra-articular tibial plateau fractures. The survey also included the Lysholm score, the Tegner activity scale, and a visual analog scale (VAS) for pain. At the time of the survey, 88% of the patients were engaged in sports activities (rate of return to sports, 88%), and 53% continued to participate in downhill skiing. The median number of different activities declined from 5 (range, 1-17) preoperatively to 4 (range, 0-11) postoperatively (P Sports frequency and duration per week did not change: 3 (range, 1-7) preoperatively versus 3 (range, 0-7) postoperatively (P = .275) and 4 hours (range, 1-16 hours) preoperatively versus 3.5 hours (range, 0-15 hours) postoperatively (P = .217), respectively. Median values of all outcome scores declined: Lysholm score, 100 (range, 85-100) preoperatively versus 94.5 (range, 37-100) postoperatively (P sports at the time of follow-up compared with the ability before the accident was rated as "similar" by 57 patients (62.0%) and as "worse" by 35 patients (38.0%). The more severe fracture types, B3 and C3 according to the AO classification system, were associated with poorer outcomes related to return to sports and functional scores. A large percentage of skiers with surgically treated intra-articular tibial plateau fractures cannot continue to participate in downhill skiing; however, the majority could resume an active lifestyle for several years after the trauma. Fracture type seems to be an important factor influencing physical

  5. Sport, Physical Education and Coaching in Health (SPEACH) : SPEACH: supporting physical education teachers and sports coaches to promote an active and healthy lifestyle

    NARCIS (Netherlands)

    de Jong, Johan; Kubbinga, Chris; Selker, Jacqueline; Leistra, Simon; Pruim, Arjan

    2018-01-01

    People are designed to movePhysical activity, including regular exercise, leisure-time physical activity, active transport and regular sports activity, is the best way of staying physically and mentally fit and healthy, helps to tackle weight and obesity issues. In contrast, too much sitting and

  6. Hydraulically-activated operating system for an electric circuit breaker

    Science.gov (United States)

    Imam, Imdad; Barkan, Philip

    1979-01-01

    This operating system comprises a fluid motor having a piston, a breaker-opening space at one side of the piston, and a breaker-closing space at its opposite side. An accumulator freely communicates with the breaker-opening space for supplying pressurized fluid thereto during a circuit-breaker opening operation. A normally-closed valve located on the breaker-closing-side of the piston is openable to release liquid from the breaker-closing space so that pressurized liquid in the breaker-opening space can drive the piston in an opening direction. Means is provided for restoring the valve to its closed position following the circuit-breaker opening operation. An impeded passage affords communication between the accumulator and the breaker-closing space to allow pressurized liquid to flow from the accumulator to the breaker-closing space and develop a pressure therein substantially equal to accumulator pressure when the valve is restored to closed position following breaker-opening. This passage is so impeded that the flow therethrough from the accumulator into the breaker-closing space is sufficiently low during initial opening motion of the piston through a substantial portion of its opening stroke as to avoid interference with said initial opening motion of the piston.

  7. Sport activities differentiating match-play improvement in elite youth footballers - a 2-year longitudinal study.

    Science.gov (United States)

    Güllich, Arne; Kovar, Peter; Zart, Sebastian; Reimann, Ansgar

    2017-02-01

    This study examined contributions of different types of sport activities to the development of elite youth soccer performance. Match-play performance of 44 German male players was assessed by expert coaches twice, 24 months apart (age 11.1-13.1 years), based on videotaped 5v5 matches. Player pairs were matched by identical age and initial performance at t 1 . Each player was assigned to a group of either "Strong" or "Weak Responders" based on a higher or lower subsequent performance improvement at t 2 within each pair (mean Δperformance 29% vs. 7%). A questionnaire recorded current and earlier amounts of organised practice/training and non-organised sporting play, in soccer and other sports, respectively. Group comparison revealed that "Strong Responders" accumulated more non-organised soccer play and organised practice/training in other sports, but not more organised soccer practice/training. Subsequent multivariate analyses (multiple linear regression analyses (MLR)) highlighted that higher resultant match-play performance at t 2 was accounted for R 2 adj  = 0.65 by performance at t 1 , together with more non-organised soccer play and organised engagement in other sports, respectively, and greater current, but less earlier volume of organised soccer. The findings suggest that variable early sporting experience facilitates subsequent soccer performance development in German elite youth footballers.

  8. Knee functions and a return to sports activity in competitive athletes following anterior cruciate ligament reconstruction.

    Science.gov (United States)

    Nakayama, Y; Shirai, Y; Narita, T; Mori, A; Kobayashi, K

    2000-06-01

    We investigated knee functions and a return to sports in 50 competitive athlete patients treated with arthroscopic anterior cruciate ligament reconstruction using double-looped STG augmented by woven polyester at a 1-year follow-up. There were 25 males and 25 females with a mean age of 24.3 years (range: 19-39 years). The majority of preinjury sports were basketball, volleyball and soccer. Athletic rehabilitation including agility training and sports-specific training was started at 12 weeks. Fourty patients (80%) was rated as normal or nearly normal on the assessment of International Knee Documentation Commitee postoperatively. Fourty-eight patients (96%) obtained full range of motion, and the mean quadriceps muscle strength of the injured side was 91.3%of that of the uninjured side. As for a return to sports, 46 patients (92%) were able to do fully competitive sports at a mean of 8.1 postoperative months. These results suggest that arthroscopic reconstruction using augmented double-looped STG allows early athletic rehabilitation, and lead satisfactory outcome as well as a reliable and early return to preinjury level of sport activity for the majority of the competitive athlete patients.

  9. Achilles tendinopathy in elderly subjects with type II diabetes: the role of sport activities.

    Science.gov (United States)

    Abate, Michele; Salini, Vincenzo; Schiavone, Cosima

    2016-04-01

    Exercise is an important therapeutic tool in the management of diabetes in older people. Aim of this study was to assess the relationship among type II diabetes, sport, overweight, and symptomatic Achilles tendinopathy in elderly subjects. Thirty-eight patients suffering from Achilles tendinopathy and thirty-eight controls were enrolled. The prevalence of diabetes and sport practice as well as BMI and Glycated Hemoglobin (HbA1c) values were registered. An ultrasound evaluation of Achilles tendon was performed. Patients showed an increased prevalence of diabetes (42 vs. 13.1 %, p = 0.004), and practice of sport (60.5 vs. 28.9 %, p = 0.0001), and higher BMI values (26.8 ± 3 vs. 24.8 ± 2.3, p = 0.001). Sonographic abnormalities, being diagnostic criteria, were present in all the patients with Achilles tendinopathy, but signs of degeneration were also found in 36.8 % of asymptomatic controls. Symptomatic subjects with diabetes, compared to those without, showed a higher prevalence of severe degeneration (75 vs. 36.3 %, p = 0.01). HbA1c values were significantly lower in sport practitioners, both diabetics and non-diabetics. Moreover, patients practicing sport showed a trend towards lower BMI values, compared to the sedentary counterpart. Sport practice in elderly diabetics provides relevant metabolic advantages, reducing HbA1c and BMI. However, some sport activities (e.g., speed walking, jogging or tennis) can expose to the risk of Achilles tendinopathy. So, sport practice should be encouraged, but practitioners should follow individual training programs and be submitted to periodic sonographic controls.

  10. Sports Activity after Low-contact-stress Total Knee Arthroplasty – A long term follow-up study

    Science.gov (United States)

    Vielgut, Ines; Leitner, Lukas; Kastner, Norbert; Radl, Roman; Leithner, Andreas; Sadoghi, Patrick

    2016-01-01

    The purpose of this study was to provide comprehensive long-term data about sports activity levels in patients following total knee arthroplasty (TKA) and to determine the impact of pre-operative function, pain and specific performed sports on the results. 236 patients who have undergone TKA for severe osteoarthritis of the knee were asked to provide specific information regarding exercised types of sports before surgery and after at least 10 years following TKA. Pre- and postoperative function and pain were evaluated by the use of Tegner-, WOMAC- and VAS Score. After a mean of 14.9 years, a significant improvement regarding pain and function was observed. Pre-operative Tegner- and WOMAC scores revealed significant positive correlations with the post-operative Tegner-Score. Accordingly, a high percentage of patients (70.9%) stayed actively involved in sports. Nevertheless, the number of performing patients has decreased according to the sports impact. 71.3% continued practising low-impact-, 43.7% intermediate-impact sports whereas only 16.4% kept performing high impact sports. We conclude that TKA is highly effective in long-time pain reduction as well as improvement of function. Additionally, we found considerable sports activities preserved in the investigated series. However, sports activities in particular, seem to decrease according to the impact of sports. PMID:27090945

  11. Sports Activity after Low-contact-stress Total Knee Arthroplasty - A long term follow-up study.

    Science.gov (United States)

    Vielgut, Ines; Leitner, Lukas; Kastner, Norbert; Radl, Roman; Leithner, Andreas; Sadoghi, Patrick

    2016-04-19

    The purpose of this study was to provide comprehensive long-term data about sports activity levels in patients following total knee arthroplasty (TKA) and to determine the impact of pre-operative function, pain and specific performed sports on the results. 236 patients who have undergone TKA for severe osteoarthritis of the knee were asked to provide specific information regarding exercised types of sports before surgery and after at least 10 years following TKA. Pre- and postoperative function and pain were evaluated by the use of Tegner-, WOMAC- and VAS Score. After a mean of 14.9 years, a significant improvement regarding pain and function was observed. Pre-operative Tegner- and WOMAC scores revealed significant positive correlations with the post-operative Tegner-Score. Accordingly, a high percentage of patients (70.9%) stayed actively involved in sports. Nevertheless, the number of performing patients has decreased according to the sports impact. 71.3% continued practising low-impact-, 43.7% intermediate-impact sports whereas only 16.4% kept performing high impact sports. We conclude that TKA is highly effective in long-time pain reduction as well as improvement of function. Additionally, we found considerable sports activities preserved in the investigated series. However, sports activities in particular, seem to decrease according to the impact of sports.

  12. Persistent activity in a recurrent circuit underlies courtship memory in Drosophila

    Science.gov (United States)

    Zhao, Xiaoliang; Lenek, Daniela; Dag, Ugur; Dickson, Barry J

    2018-01-01

    Recurrent connections are thought to be a common feature of the neural circuits that encode memories, but how memories are laid down in such circuits is not fully understood. Here we present evidence that courtship memory in Drosophila relies on the recurrent circuit between mushroom body gamma (MBγ), M6 output, and aSP13 dopaminergic neurons. We demonstrate persistent neuronal activity of aSP13 neurons and show that it transiently potentiates synaptic transmission from MBγ>M6 neurons. M6 neurons in turn provide input to aSP13 neurons, prolonging potentiation of MBγ>M6 synapses over time periods that match short-term memory. These data support a model in which persistent aSP13 activity within a recurrent circuit lays the foundation for a short-term memory. PMID:29322941

  13. Persistent activity in a recurrent circuit underlies courtship memory in Drosophila.

    Science.gov (United States)

    Zhao, Xiaoliang; Lenek, Daniela; Dag, Ugur; Dickson, Barry J; Keleman, Krystyna

    2018-01-11

    Recurrent connections are thought to be a common feature of the neural circuits that encode memories, but how memories are laid down in such circuits is not fully understood. Here we present evidence that courtship memory in Drosophila relies on the recurrent circuit between mushroom body gamma (MBγ), M6 output, and aSP13 dopaminergic neurons. We demonstrate persistent neuronal activity of aSP13 neurons and show that it transiently potentiates synaptic transmission from MBγ>M6 neurons. M6 neurons in turn provide input to aSP13 neurons, prolonging potentiation of MB γ >M6 synapses over time periods that match short-term memory. These data support a model in which persistent aSP13 activity within a recurrent circuit lays the foundation for a short-term memory. © 2018, Zhao et al.

  14. Activity Recognition Using Inertial Sensing for Healthcare, Wellbeing and Sports Applications: A Survey

    NARCIS (Netherlands)

    Avci, A.; Bosch, S.; Marin Perianu, Mihai; Marin Perianu, Raluca; Havinga, Paul J.M.

    This paper surveys the current research directions of activity recognition using inertial sensors, with potential application in healthcare, wellbeing and sports. The analysis of related work is organized according to the five main steps involved in the activity recognition process: preprocessing,

  15. Physical capacity and physical strain in persons with tetraplegia; the role of sport activity

    NARCIS (Netherlands)

    Dallmeijer, A J; Hopman, M T; van As, H H; van der Woude, L H

    1996-01-01

    To determine the relationship between sport activity and physical capacity (PC) and physical strain (PS) during standardized activities of daily living (ADL), 25 subjects with tetraplegia were studied. To quantify PC, maximal power output, peak oxygen uptake and maximal isometric force were

  16. Physical Activity and Psychological Benefits. International Society of Sport Psychology Position Statement.

    Science.gov (United States)

    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…

  17. PHYSICAL ACTIVITY AGAINST DEVIANT BEHAVIOR: IS IT POSSIBLE TO PREVENT AND REDUCE DEVIANCES WITH SPORT?

    Directory of Open Access Journals (Sweden)

    Zlatka Al. Dimitrova

    2017-07-01

    Full Text Available This article discusses physical activity and sport as a good way to overcome deviant behavior in children. A number of characteristics of sporting activity are identified, which define it as useful not only for the physical but also for the psychological, emotional and overall development of the personality. Organized extracurricular sports activities are mentioned as a good means of organizing the leisure time of the students. Of course, sport is not a universal remedy for the problems of society and the deviant behavior of children. But it is one of the working options for prevention and overcoming deviant behavior, especially if it is a result mainly of the child's personal characteristics such as aggression, temperamental behavior or adrenal dependence. Affiliation to the team gives the child certainty that they area member of a community where they give and receive permanent support. The pursuit of personal achievement reflects the development of the child and directs his or her energy in a positive direction. Achieved success boosts self-confidence and self-esteem that are so necessary to young people especially in teen years. Driving into discipline in sport will lead to compliance with social norms and public laws.

  18. The Impact Of Sports Activities On Quality Of Life Of Persons With A Spinal Cord Injury

    Directory of Open Access Journals (Sweden)

    Kljajić Dragana

    2016-06-01

    Full Text Available Studying the quality of life of people with a spinal cord injury is of great importance as it allows the monitoring of both functioning and adaptation to disability. The aim of this study was to determine the difference between persons with a spinal cord injury involved in sports activities and those not involved in sports activities in relation to their quality of life and the presence of secondary health conditions (pressure ulcers, urinary infections, muscle spasms, osteoporosis, pain, kidney problems-infections, calculosis and poor circulation.

  19. Attitudes of Consumers from the Mostar Canton in Bosnia and Herzegovina toward Advertising through Sport among the Question how Often they Participate in Sports Activities

    Directory of Open Access Journals (Sweden)

    Marin Corluka

    2018-04-01

    Full Text Available Advertising is an attractive promotional tool for marketers who can use it to strengthen communication with consumers and persuade them to purchasing certain product or service. Hence, there is necessity to analyse their general attitudes among various questions, while this research was aimed at gaining relevant knowledge about the attitudes of Mostar consumers toward advertising through sport among the question how often they participate in sports activities. The sample included 228 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 month. The sample of variables contained the system of three general attitudes which were modelled by seven-point Likert scale. The results of the measuring were analysed by multivariate analysis (MANOVA and univariate analysis (ANOVA and Post Hoc test. Based on the statistical analyses it was found that significant differences occur at multivariate level, as well as between all three variables at a significance level of p=.000. Hence, it is interesting to highlight that it was found there are significant differences showed up between the consumers who participate in various sports activities. These results are so important for the marketers, mostly due to the reason they can’t merge all the potential consumers who participate in various sports activities into one homogeneous group. This isthe case in previous investigations and this observation presents relevant information.

  20. Using a socioecological approach to examine participation in sport and physical activity among rural adolescent girls.

    Science.gov (United States)

    Casey, Meghan M; Eime, Rochelle M; Payne, Warren R; Harvey, Jack T

    2009-07-01

    Adolescence is a critical time for developing lifelong healthy behaviors, including active lifestyles. Participation in sport and physical activity, however, declines during adolescence, and few studies have comprehensively identified why, particularly among rural girls. This article identifies a range of independent and interacting factors that influence sport and physical activity participation of rural adolescent girls. The socioecological model of health was used to guide four focus group discussions with Grade 7 girls (n = 34). The results showed that adolescent girls were positively influenced when sports or physical activities were fun, when they involved being with friends, and when they were supported by families and teachers through role modeling and positive feedback. A range of intrapersonal and organizational factors affected perceived self-competence, particularly the coeducational nature of school physical education classes and peer teasing, which supported social comparisons of skill level. In promoting sport and physical activity to rural adolescent girls, focus must be directed on developmentally appropriate activities that are fun, offering opportunities for single-sex classes, and generating cultural changes that encourage noncompetitive and self-referencing activities.

  1. A conceptual framework for a sports knee injury performance profile (SKIPP) and return to activity criteria (RTAC).

    Science.gov (United States)

    Logerstedt, David; Arundale, Amelia; Lynch, Andrew; Snyder-Mackler, Lynn

    2015-01-01

    Injuries to the knee, including intra-articular fractures, ligamentous ruptures, and meniscal and articular cartilage lesions, are commonplace within sports. Despite advancements in surgical techniques and enhanced rehabilitation, athletes returning to cutting, pivoting, and jumping sports after a knee injury are at greater risk of sustaining a second injury. The clinical utility of objective criteria presents a decision-making challenge to ensure athletes are fully rehabilitated and safe to return to sport. A system centered on specific indicators that can be used to develop a comprehensive profile to monitor rehabilitation progression and to establish return to activity criteria is recommended to clear athletes to begin a progressive and systematic approach to activities and sports. Integration of a sports knee injury performance profile with return to activity criteria can guide clinicians in facilitating an athlete's safe return to sport, prevention of subsequent injury, and life-long knee joint health.

  2. A conceptual framework for a sports knee injury performance profile (SKIPP and return to activity criteria (RTAC

    Directory of Open Access Journals (Sweden)

    David Logerstedt

    2015-10-01

    Full Text Available ABSTRACTInjuries to the knee, including intra-articular fractures, ligamentous ruptures, and meniscal and articular cartilage lesions, are commonplace within sports. Despite advancements in surgical techniques and enhanced rehabilitation, athletes returning to cutting, pivoting, and jumping sports after a knee injury are at greater risk of sustaining a second injury. The clinical utility of objective criteria presents a decision-making challenge to ensure athletes are fully rehabilitated and safe to return to sport. A system centered on specific indicators that can be used to develop a comprehensive profile to monitor rehabilitation progression and to establish return to activity criteria is recommended to clear athletes to begin a progressive and systematic approach to activities and sports. Integration of a sports knee injury performance profile with return to activity criteria can guide clinicians in facilitating an athlete's safe return to sport, prevention of subsequent injury, and life-long knee joint health.

  3. Sports Cardiology: Core Curriculum for Providing Cardiovascular Care to Competitive Athletes and Highly Active People.

    Science.gov (United States)

    Baggish, Aaron L; Battle, Robert W; Beckerman, James G; Bove, Alfred A; Lampert, Rachel J; Levine, Benjamin D; Link, Mark S; Martinez, Matthew W; Molossi, Silvana M; Salerno, Jack; Wasfy, Meagan M; Weiner, Rory B; Emery, Michael S

    2017-10-10

    The last few decades have seen substantial growth in the populations of competitive athletes and highly active people (CAHAP). Although vigorous physical exercise is an effective way to reduce the risk of cardiovascular (CV) disease, CAHAP remain susceptible to inherited and acquired CV disease, and may be most at risk for adverse CV outcomes during intense physical activity. Traditionally, multidisciplinary teams comprising athletic trainers, physical therapists, primary care sports medicine physicians, and orthopedic surgeons have provided clinical care for CAHAP. However, there is increasing recognition that a care team including qualified CV specialists optimizes care delivery for CAHAP. In recognition of the increasing demand for CV specialists competent in the care of CAHAP, the American College of Cardiology has recently established a Sports and Exercise Council. An important primary objective of this council is to define the essential skills necessary to practice effective sports cardiology. Copyright © 2017. Published by Elsevier Inc.

  4. Activity – based costing in sport organizations:Theoretical background & future prospects

    Directory of Open Access Journals (Sweden)

    PANAGIOTIS E. DIMITROPOULOS

    2007-01-01

    Full Text Available Costing systems in recent years have shown a significantdevelopment and activity-based costing (ABC specificallyhas been considered as a major contribution to cost management, particularly in service businesses. The sport sector is composed to a great extent of service functions, yet considerably less have been reported of the use of activity based costing to support cost management in sport organizations. Since the power of information becomes continuously crucial for the implementation of effective business administration, the traditional methods of cost measurementproved insufficient on this issue, leading to the invention ofABC. The aim of this paper is twofold. First of all we wantto present the main theoretical background of ABC and itssubstantiated benefits, and secondly to present some practical steps for the implementation of ABC in sport organizations.

  5. Sports and leisure time physical activity during pregnancy in nulliparous women.

    Science.gov (United States)

    Hegaard, Hanne Kristine; Damm, Peter; Hedegaard, Morten; Henriksen, Tine Brink; Ottesen, Bent; Dykes, Anna-Karin; Kjaergaard, Hanne

    2011-08-01

    To describe patterns of leisure time physical activity during pregnancy in relation to pre-pregnancy leisure time physical activity, socio-demographic characteristics, fertility history, and lifestyle factors. 4,718 nulliparous with singleton pregnancy and intended spontaneous vaginal delivery were included in the study at gestational week 33 from May 2004 to July 2005. Information was provided by self-administered questionnaires. Leisure time physical activity was categorised into four categories: competitive sport, moderate-to-heavy, light or sedentary. In this population of nulliparous women, 4% participated in competitive sport, 25% in moderate-to-heavy activities, 66% in light activities, and 5% in sedentary activities in the year prior to pregnancy. Physical activity before pregnancy was statistically significantly associated with age, pre-pregnancy BMI, chronic diseases, number of years at school, and smoking habits. The proportion of women who took part in competitive sports, and moderate-to-heavy activities decreased over the three trimesters of pregnancy. The proportion of women with light physical activity was stable during pregnancy while the proportion of women with sedentary activity increased from 6% to 29%. During the third trimester women performing competitive sports or moderate-to-heavy activities before pregnancy continued to have a higher level of physical activity than women with light activities or sedentary activities before pregnancy. In general the intensity and time spent on exercise decreased during pregnancy. Women with the highest level of exercise prior to pregnancy continued to be the most active during pregnancy. Among women with sedentary activities before pregnancy one-fourth changed to light activity during pregnancy.

  6. Injuries associated with combat sports, active component, U.S. Armed Forces, 2010-2013.

    Science.gov (United States)

    2014-05-01

    The practice of combat sports creates a potential for training- and sports-related injuries among military members. During the 4-year surveillance period, there were 12,108 cases of injuries associated with combat sports among active component service members; the overall incidence rate was 21.0 per 10,000 person-years (p-yrs). The rates were higher among service members who were male, Hispanic, in the youngest age groups, in the Army, junior enlisted, and in combat-specific occupations. The rate among recruit/ trainees (779.4 per 10,000 p-yrs) was more than 165 times the rate among all other active component service members (non-recruits) (4.7 per 10,000 p-yrs). Sprains, strains, and contusions accounted for more than one-half of the primary (first-listed) diagnoses associated with combat sports cases. More serious conditions such as concussions/head injuries and skull/face fractures/intracranial injuries were reported among 3.9% and 2.1% of all cases and were more common among boxing-related cases. Hand/wrist fractures were also common among boxing cases. Wrestling had comparatively greater proportions of dislocations and open wounds. Although the combat sport training provides many physical and mental benefits to the individual, safety practices should be enforced to reduce the most frequent and serious injuries.

  7. Physical activity and sport participation: A systematic review of the impact of fatherhood.

    Science.gov (United States)

    Pot, Niek; Keizer, Renske

    2016-12-01

    Moderate to Vigorous Physical Activity (MVPA), including sport participation, is an important component of a healthy lifestyle. Scholars have devoted considerable attention to understanding the impact of parenthood on MVPA, albeit only for women. As the impact of fatherhood on men's lives is drawing more and more scholarly and societal attention, the aim of the current article is to provide an systematic overview of studies examining the impact of fatherhood on MVPA. A systematic review was conducted in Google Scholar, Web of Science and Web of Knowledge, using (combinations of) the search terms: father(hood), parent(hood), exercise, physical activity, sport and leisure time. This resulted in 54 papers reporting differences in MVPA and/or sport between fathers and childless men or within men that became father, of which 13 were included. Our overview of findings suggested that fathers spent less time on MVPA compared with childless men, but that fathers did not differ from their childless counterparts on the subarea of sport participation. Differences in time spent on MVPA were strongest between childless men and fathers with young children (< 6 yrs). Our systematic review revealed that fathers spent less time on MVPA compared to childless men, especially when they had young children. Interestingly, linkages between parental status and the subarea of sport participation were not found, which suggests that fathers cut back on other areas of MVPA. Given the impact of MVPA on a healthy lifestyle, future research in this field is warranted.

  8. Special aspects of para-olympic athletes’ sport activity in the process of self-education

    Directory of Open Access Journals (Sweden)

    V.V. Shuba

    2017-04-01

    Full Text Available Purpose: to determine and substantiate influence of self-education components of para-Olympic athletes’ sport activity. Material: in the research 46 para-Olympic athletes form three teams of game kinds of sports participated: combined football, basketball and volleyball teams of Ukraine. The program of self-education process’s organization was designed for 9 months and consisted of three stages. Pedagogic program consisted of 9 classes. Optimal time of one training session was 45 minutes a day (in total - 9 days. Results: we determined the need in consideration of athletes’ individual-personality features in organization the self-education process. We also substantiated and experimentally tested correlations, which facilitate: adequate organization of athletes’ self-education process; mastering of sport knowledge and skills of behavior in different extreme situations; realization of own potentials in sport and social life. Conclusions: the structure of athletes’ self -education is presented by combination of interconnected components: motivation-personal (motives, demands, settings, moral-will qualities and individual personal features; cognitive (system of knowledge about oneself and sport functioning; activity (formation of skills in self cognition, self-organization and self-control.

  9. Informal education and youth leisure. The influence of friends in the abandonment of physical sport activity

    Directory of Open Access Journals (Sweden)

    M Angeles Valdemoros San Emeterio

    2012-07-01

    Full Text Available The goal of this research is to determine whether the importance granted by friends to physical-sport activities influences adolescents’ dropout of physical-sport.A methodological triangulation was conducted, using quantitative and qualitative techniques. In the quantitative technique. the final sample comprised 1978 subjects, 51.7% girls and 48.3% boys. Descriptive analysis, inferential analysis (Cramer’s V, and multinomial regression analysis were performed on the data collected with the questionnaire.In the qualitative technique, four focus groups (n = 41were employed: parents, Physical Education teachers, teachers from other areas, and adolsescents. Results show that girls’ dropout rate is three times higher than that of the boys, and they are four times more likely to abandon this lifestyle than boys.The peer group is one of the most powerful informal education agents to influence adolescents’ physical-sport practice, but its influence varies by sex. If friends grant much, some, or very much importance to physical-sport practice, girls are less likely to drop out of such practice, but when boys’ friends grant no importance to physical-sport activity, they are five times more likely to drop out.

  10. In Vitro Effects of Sports and Energy Drinks on Streptococcus mutans Biofilm Formation and Metabolic Activity.

    Science.gov (United States)

    Vinson, LaQuia A; Goodlett, Amy K; Huang, Ruijie; Eckert, George J; Gregory, Richard L

    2017-09-15

    Sports and energy drinks are being increasingly consumed and contain large amounts of sugars, which are known to increase Streptococcus mutans biofilm formation and metabolic activity. The purpose of this in vitro study was to investigate the effects of sports and energy drinks on S. mutans biofilm formation and metabolic activity. S. mutans UA159 was cultured with and without a dilution (1:3 ratio) of a variety of sports and energy drinks in bacterial media for 24 hours. The biofilm was washed, fixed, and stained. Biofilm growth was evaluated by reading absorbance of the crystal violet. Biofilm metabolic activity was measured by the biofilm-reducing XTT to a water-soluble orange compound. Gatorade Protein Recovery Shake and Starbucks Doubleshot Espresso Energy were found to significantly increase biofilm (30-fold and 22-fold, respectively) and metabolic activity (2-fold and 3-fold, respectively). However, most of the remaining drinks significantly inhibited biofilm growth and metabolic activity. Several sports and energy drinks, with sugars or sugar substitutes as their main ingredients inhibited S. mutans biofilm formation. Among the drinks evaluated, Gatorade Protein Recovery Chocolate Shake and Starbucks Doubleshot Energy appear to have cariogenic potential since they increased the biofilm formation and metabolic activity of S. mutans.

  11. [Sociodemographic and environmental factors associated with sports physical activity in the urban population of Peru].

    Science.gov (United States)

    Seclén-Palacín, Juan A; Jacoby, Enrique R

    2003-10-01

    To determine the frequency of sports physical activity in the urban population of Peru and to identify the sociodemographic, economic, and environmental factors associated with that activity. This study utilized information collected by the country's National Household Survey (Encuesta Nacional de Hogares) in the second quarter of 1997. That Survey is overseen by Peru's National Institute of Statistics and Informatics (Instituto Nacional de Estadística e Informática). The Survey was based on a probabilistic, multistage sample that was stratified for all the urban areas of the country, which was divided into eight geographic regions: metropolitan Lima, northern coast, central coast, southern coast, northern mountains, central mountains, southern mountains, and jungle. In total, 14 913 homes were visited and 45 319 people at least 15 years of age were interviewed. The frequency of engaging in sports physical activity was classified as daily, every other day, weekly, or occasional. "Regular sports activity" (RSA) was defined as engaging in sports either every day or every other day. The preferences for and obstacles to sports practice were also examined. A descriptive analysis of the levels of RSA was carried out for gender, using the chi-square test. The factors associated with RSA were analyzed through conditional multiple logistic regression and analysis of residuals, multicollinearity, and interactions. The level of significance was set at P jungle (15.3%), central mountains (12.8%), and central coast (12.1%). RSA was least common in two regions: southern mountains (9.7%) and metropolitan Lima (10.6%). The income bracket was not associated with RSA. However, other variables associated indirectly with the socioeconomic level - such as having more formal education, being employed, and having access to the Internet or cable television - and consumption of sports information were significantly and directly associated with RSA. The most frequent barriers to

  12. Problems Encountered by Religious Vocational Secondary School and Other Secondary School Students in Physical Education and Sports Activities

    Science.gov (United States)

    Bar, Mustafa; Yaman, Menzure Sibel; Hergüner, Gülten

    2016-01-01

    The study aimed to determine problems encountered by Religious Vocational Secondary School and other Secondary School students in physical education and sports activities and to compare these problems according to school type and gender. A questionnaire named "Problems encountered in attending to physical education and sports activities"…

  13. Examination of Socialization Level of University Students Engaged in Sports Activities According to Their Locus of Control

    Science.gov (United States)

    Inan, Mehmet; Karagözoglu, Cengiz; Dervent, Fatih; Arslantas, Bülent

    2015-01-01

    In this study, the university students who participate in sports have been examined in terms of their socialization relative to the participation in sport activities and the locus of control. Students are thought to be engaged in many activities in addition to their lessons during their student tenure at higher education institutions. Their…

  14. Time and money expenditure in sports participation: The role of income in consuming the most practiced sports activities in Flanders.

    NARCIS (Netherlands)

    Thibaut, E.; Eakins, J.; Vos, S.B.; Scheerder, J.

    2017-01-01

    Given the recent economic crisis and the risen poverty rates, sports managers need to get insight in the effect of income and other socio-economic determinants on the household time and money that is spent on sports participation. By means of a Tobit regression, this study analyses the magnitude of

  15. Activity Demands During Multi-Directional Team Sports: A Systematic Review.

    Science.gov (United States)

    Taylor, Jeffrey B; Wright, Alexis A; Dischiavi, Steven L; Townsend, M Allison; Marmon, Adam R

    2017-12-01

    Late-stage rehabilitation programs often incorporate 'sport-specific' demands, but may not optimally simulate the in-game volume or intensity of such activities as sprinting, cutting, jumping, and lateral movement. The aim of this review was to characterize, quantify, and compare straight-line running and multi-directional demands during sport competition. A systematic review of PubMed, CINAHL, SPORTDiscus, and Cochrane Central Register of Controlled Trials databases was conducted. Studies that reported time-motion analysis data on straight-line running, accelerations/decelerations, activity changes, jumping, cutting, or lateral movement over the course of an entire competition in a multi-directional sport (soccer, basketball, lacrosse, handball, field hockey, futsal, volleyball) were included. Data was organized based on sport, age level, and sex and descriptive statistics of the frequency, intensity, time, and volume of the characteristics of running and multi-directional demands were extracted from each study. Eighty-one studies were included in the review (n = 47 soccer, n = 11 basketball, n = 9 handball, n = 7 field hockey, n = 3 futsal, n = 4 volleyball). Variability of sport demand data was found across sports, sexes, and age levels. Specifically, soccer and field hockey demanded the most volume of running, while basketball required the highest ratio of high-intensity running to sprinting. Athletes change activity between 500 and 3000 times over the course of a competition, or once every 2-4 s. Studies of soccer reported the most frequent cutting (up to 800 per game), while studies of basketball reported the highest frequency of lateral movement (up to 450 per game). Basketball (42-56 per game), handball (up to 90 per game), and volleyball (up to 35 per game) were found to require the most jumping. These data may provide an incomplete view of an athlete's straight-line running load, considering that only competition and not practice data was

  16. 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.

  17. Physical activity habits in a European sports event: A case study

    Directory of Open Access Journals (Sweden)

    Leonor Gallardo

    2014-12-01

    Full Text Available The aim of this study is to learn more about the physical activity habits of participants in a popular sporting event such as European Sports Day, which is held simultaneously in five European countries (Spain, Italy, Cyprus, Ireland, and Hungary, and to measure the influence of socio-demographic variables on these habits. This is a cross-sectional study conducted with a sample of 856 participants, stratified by gender, age, and nationality. We statistically analyzed five variables related to physical activity habits: frequency of physical activity practice, places of practice, motives of practice, perceived fitness level, and popular event attendance. Of the participants, 76.8% said they perform physical activity weekly. Fitness/health improvement (34.63% and entertainment/leisure (26.52% are the main reasons for the practice of physical activity. Age and nationality are differentiating factors on physical activity habits.

  18. Collective Efficacy in Sports and Physical Activities: Perceived Emotional Synchrony and Shared Flow

    Science.gov (United States)

    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

  19. 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.

  20. The Relation of Empathy and Self-Esteem With Active Sporting.

    Science.gov (United States)

    Kalliopuska, Mirja

    This study surveyed the connection of empathy and self-esteem with active sporting. The subjects were 1,381 members of Finnish baseball teams between the ages of 8 to 16. The instruments used in testing the subjects were: (1) the modified Mehrabian & Epstein Empathy test (1972); (2) the Battle Self-Esteem Scale, Form B (1981); (3) the…

  1. The sequential patterning of tactics: Activism in the global sports apparel industry, 1988–2002

    NARCIS (Netherlands)

    den Hond, F.; de Bakker, F.G.A.; de Haan, P.

    2010-01-01

    Purpose – Activist groups apply a range of tactics in order to improve labour conditions in the global sports and apparel industry. The accumulation of these tactics leads to the build-up of pressure on firms within this industry (brands, retailers) to change their policies and activities on labour

  2. Population physical activity behaviour change: A review for the European College of Sport Science

    NARCIS (Netherlands)

    Biddle, S.J.H.; Brehm, W.; Verheijden, M.; Hopman-Rock, M.

    2012-01-01

    The academic study of sport and exercise science has expanded greatly into the arena of public health over the past 20 years or more and Europe has played a significant role in this. It is opportune to review evidence concerning ways to change population levels of physical activity for health. This

  3. Population physical activity behaviour change : A review for the European College of Sport Science

    NARCIS (Netherlands)

    Biddle, S.J.H.; Brehm, W.; Verheijden, M.; Hopman-Rock, M.

    2012-01-01

    The academic study of sport and exercise science has expanded greatly into the arena of public health over the past 20 years or more and Europe has played a significant role in this. It is opportune to review evidence concerning ways to change population levels of physical activity for health. This

  4. The Reasons for the Reluctance of Princess Alia University College Students' from Practicing Sports Activities

    Science.gov (United States)

    Odat, Jebril

    2015-01-01

    This study aimed at investigating the reasons lying behind the reluctance of participation in sport activities among Alia Princess College female students, using descriptive approach. The population of the study consisted of (2000) female students, whereas the sample was of (200) students. They were randomly selected and a questionnaire of 31…

  5. Emplotment, Embodiment, Engagement: Narrative Technology in Support of Physical Education, Sport and Physical Activity

    Science.gov (United States)

    Hall, Tony

    2012-01-01

    This paper is based on a keynote lecture delivered at the International Association of Physical Education in Higher Education 2011 Conference, University of Limerick, on the sub theme: "Technologies in Support of Physical Education, Sport, and Physical Activity." The paper outlines and illustrates a framework: narrative technology, which can be…

  6. Experiences of activity measurements of primary circuit materials in a WWR-SM research reactor

    International Nuclear Information System (INIS)

    Elek, A.; Toth, M.; Bakos, L.; Vizdos, G.

    1980-01-01

    The activity of water and gas samples taken from the primary circuit have been measured nondestructively for more than two years to monitor the technological parameters of the reactor. In the primary water samples 17 fission products and seven activated traces, as well as six radioactive conponents in the gas samples were determined routinely by Ge/Li gamma-spectrometry. (author)

  7. Associations of Physical Activity, Sports Participation and Active Commuting on Mathematic Performance and Inhibitory Control in Adolescents

    DEFF Research Database (Denmark)

    Domazet, Sidsel L; Tarp, Jakob; Huang, Tao

    2016-01-01

    OBJECTIVES: To examine objectively measured physical activity level, organized sports participation and active commuting to school in relation to mathematic performance and inhibitory control in adolescents. METHODS: The design was cross-sectional. A convenient sample of 869 sixth and seventh gra...

  8. ACHIEVEMENT GOALS AND INTENSIVITY OF PHYSICAL ACTIVITY DURING FREE PLAY IN CHILDREN: THE MODERATING ROLE OF PERCEIVED SPORT CONFIDENCE

    Directory of Open Access Journals (Sweden)

    R. Lochbaum Marc

    2015-11-01

    Full Text Available Purpose: to examine the moderating role of sport confidence and resultant the achievement goal profile with physical activity intensity during free play. Material: participants were 28 children participating in an after-school program. The 28 children completed measures of task and ego goal orientations and sport confidence two weeks prior to having their heart rate monitored during a free play session. Results: indicated that children with high sport confidence were characterized ( p 1.10 by higher task and ego orientations and average heart rate over the course of the free play session when compared to the low sport confidence children. The moderate sport confidence children were not significantly different than the other groups expect for ego orientation though effect sizes indicated this group tended towards being more similar to the high sport confidence group. The results were confounded as all children in the low sport confidence condition were girls. Conclusions: Sport confidence moderates physical activity intensity during free play in children and is characterized by a higher ego orientation and generally higher task orientation. But given all of the low confident children were females, intervention work is needed at early ages with girls to build sport confidence and motivations for both goal orientations to hopefully increase physical activity intensity during free play.

  9. The Electron Runaround: Understanding Electric Circuit Basics Through a Classroom Activity

    Science.gov (United States)

    Singh, Vandana

    2010-05-01

    Several misconceptions abound among college students taking their first general physics course, and to some extent pre-engineering physics students, regarding the physics and applications of electric circuits. Analogies used in textbooks, such as those that liken an electric circuit to a piped closed loop of water driven by a water pump, do not completely resolve these misconceptions. Mazur and Knight,2 in particular, separately note that such misconceptions include the notion that electric current on either side of a light bulb in a circuit can be different. Other difficulties and confusions involve understanding why the current in a parallel circuit exceeds the current in a series circuit with the same components, and include the role of the battery (where students may assume wrongly that a dry cell battery is a fixed-current rather than a fixed-voltage device). A simple classroom activity that students can play as a game can resolve these misconceptions, providing an intellectual as well as a hands-on understanding. This paper describes the "Electron Runaround," first developed by the author to teach extremely bright 8-year-old home-schooled children the basics of electric circuits and subsequently altered (according to the required level of instruction) and used for various college physics courses.

  10. Basis of integrated approach to sports and recreational activities of students of special medical groups

    Directory of Open Access Journals (Sweden)

    L.V. Zaharova

    2014-02-01

    Full Text Available Purpose : to prove the superiority of techniques integrated approach to sports and recreational activities of students of special medical groups in the educational institution. Material / methods : the annual pedagogical experiment conducted on three groups that have been formed based on the results of preliminary studies based on diagnosis. Learning process based on the principle of improving training. Results : the advantages of an integrated approach to sports and recreational activities of students with disorders of the musculoskeletal system. Recommended approaches to increase physical and functional training. Also - the formation of a stable demand of motor activity, leading healthy lifestyles, in the acquisition of social status in the educational activity. Conclusions : the integrated approach will meet the educational needs of students to form a cultural competence of the individual in the preservation and conservation of health, ability to adapt and successfully implement their professional activities.

  11. Physical education in schools, sport activity and total physical activity in adolescents

    Directory of Open Access Journals (Sweden)

    Priscila Missaki Nakamura

    2013-07-01

    Full Text Available Less than half of adolescents reach the recommended300 minutes per week of physical activity (PA. Physical educationclasses and sports participation provideopportunities for adolescents to accumulate moretime for PA practice; however, littleis known about the influence of these variables onthe level of total physical activity ofadolescents. The aim of this study was toinvestigate the association between the practiceof physical education (PE in schools and sportsactivities (SA with the practice oftotal PA of adolescents. The study wascross-sectional and involved 467 adolescents ofhigh school (15.8 ± 0.9 years-old from the city ofRio Claro, in the State of São Paulo. Participants completed the Physical ActivityQuestionnaire to Older Children (PAQ-Cand questions related to the practice of PE and SAin schools. We performed a logisticregression with p<0.05 using SPSS. Girls hadlower prevalence of PA than boys, 9.4% and26.8%, respectively. Boys who did not participateof PE classes (OR=0.25, CI95%=0.09-0.66 and SA in schools (OR=0.34, CI95%=0.12-0.95were less likely to be active in PAthan boys who practiced these activities. Theparticipation in PE classes or engagementin some SA were positively associated with thepractice of total PA in boys.

  12. Physical education in schools, sport activity and total physical activity in adolescents

    Directory of Open Access Journals (Sweden)

    Priscila Missaki Nakamura

    2013-06-01

    Full Text Available DOI: http://dx.doi.org/10.5007/1980-0037.2013v15n5p517 Less than half of adolescents reach the recommended300 minutes per week of physical activity (PA. Physical educationclasses and sports participation provideopportunities for adolescents to accumulate moretime for PA practice; however, littleis known about the influence of these variables onthe level of total physical activity ofadolescents. The aim of this study was toinvestigate the association between the practiceof physical education (PE in schools and sportsactivities (SA with the practice oftotal PA of adolescents. The study wascross-sectional and involved 467 adolescents ofhigh school (15.8 ± 0.9 years-old from the city ofRio Claro, in the State of São Paulo. Participants completed the Physical ActivityQuestionnaire to Older Children (PAQ-Cand questions related to the practice of PE and SAin schools. We performed a logisticregression with p<0.05 using SPSS. Girls hadlower prevalence of PA than boys, 9.4% and26.8%, respectively. Boys who did not participateof PE classes (OR=0.25, CI95%=0.09-0.66 and SA in schools (OR=0.34, CI95%=0.12-0.95were less likely to be active in PAthan boys who practiced these activities. Theparticipation in PE classes or engagementin some SA were positively associated with thepractice of total PA in boys.

  13. Cardiac autonomic profile in different sports disciplines during all-day activity.

    Science.gov (United States)

    Sztajzel, J; Jung, M; Sievert, K; Bayes De Luna, A

    2008-12-01

    Physical training and sport activity have a beneficial effect on cardiac autonomic activity. However, the exact impact of different types of sports disciplines on cardiac autonomic function is still unclear. The aim of this study was to evaluate the cardiac autonomic profile in different sports discplines and to determine their impact on cardiac autonomic function by using heart rate variability (HRV), a noninvasive electrocardiographic (ECG) analysis of the sympatho-vagal balance. Temporal and spectral HRV parameters determined from 24-hour continuous ECG monitoring were studied in 40 subjects, including 12 endurance athletes, 14 hockey players and 14 untrained male volunteers (control group). Each participant had to wear a Holter recorder during 24 hours and to continue his everyday activities. All HRV parameters were compared between the 3 study groups. All heart rate values were lower and all parasympathetic-related time domain indices, including root mean square of successive differences (RMSSD) and pNN50 (NN50 count divided by the total number of all NN intervals), were higher in both athletes groups as compared with controls (PHRV, were significantly higher only in endurance athletes (PHRV (higher SDNN), indicating thereby that this type sports discipline may have a more substantially favorable effect on the cardiac autonomic profile.

  14. SPORTS MARKETING AS A BUSINESS FUNCTION IN MODERN SPORTS

    OpenAIRE

    Danilo Aćimović; Omer Špirtović

    2013-01-01

    Discussion about sport marketing implies its theoretical definition and generalization, and then its actual definition in sport environment. Sport marketing, belongs to the newer type of the marketing. It appeared in time of increasing activity and significance of sport in the world. Huge human potential, with which sport as an activity disposes, implied the need to organize more properly and use it purposefully. “Sport marketing belongs to business function of sport organization and represen...

  15. The Use of Active Video Games in Physical Education and Sport

    Directory of Open Access Journals (Sweden)

    Natalia Chukhlantseva

    2017-02-01

    Full Text Available ICT cause and accelerate the processes of getting and developing knowledge, facilitate the process of modernization of education. Active video games, which involve physical movement of the player’s body, are used to increase the efficiency of perception of the educational material connected with motor activity and to raise the level of motor activity of young people Active video games which require the display of strength, coordination and flexibility are included into the curriculum of physical education, combining physical education with a game. These games use the player’s body movements as a controller, thus providing an alternative to static games and helping to preserve health. The study is the analysis of publications on the use of ICT, namely active video games (exergames in the field of physical culture and sports. The study has found that the use of active video games in educational and training process promotes physical qualities, improves cognitive functions, improves socialization and motivation to exercise. It has been proved that the use of exergames motivation increases motor activity of students and adults. Specially selected exergames help to familiarize students with various types of sports activities, such as those that are difficult to practice in the gym. Rational use of active video games in the classroom optimizes the educational process. Modern mobile exergames on one platform include several sports and can be used outside sports facilities, encouraging more people to exercise. Exergames personalize elements of the game, the level of difficulty, type of physical activity, have a system of evaluation of changes in the user’s preparedness, increase motivation to exercise.

  16. Experiences in sport, physical activity, and physical education among Christian, Buddhist, and Hindu Asian adolescent girls.

    Science.gov (United States)

    Araki, Kaori; Kodani, Iku; Gupta, Nidhi; Gill, Diane L

    2013-01-01

    Multicultural scholarship in sport and exercise psychology should help us understand and apply cultural competencies for all to be physically active. In the present study, two Asian countries, Japan and Singapore, were chosen. The participation rate for physical activities among adolescent girls tends to be lower than that of boys in both countries. Thus, the purpose of the project was to gain knowledge and understanding about sociocultural factors that may explain adolescent girls' perceptions and behaviors toward sport, physical activity, and physical education (PE). A qualitative approach using semi-structured interviews with focus groups was used to understand meanings of physical activity among Buddhist Japanese, and Hindu Indians and Christian Chinese from Singapore. Each focus group consisted of four or five girls and female researchers. Based on the analysis, we created four themes which were "cultural identities," "Asian girls and sport/physical activities," "PE experiences," "motivation for future involvement." The Buddhist Japanese, Hindu Indian, and Christian Chinese participants each reported unique physical activity experiences, and all the participants were aware of how Asian culture may affect being physically active. Experiences of PE classes were similar but perceptions of their PE attire were different for Christian Chinese and Hindu Indian adolescent girls. Based on the results, the importance of nurturing cultural competencies and ways to encourage girls to be physically active throughout life were discussed.

  17. Sensitive detection of proteasomal activation using the Deg-On mammalian synthetic gene circuit.

    Science.gov (United States)

    Zhao, Wenting; Bonem, Matthew; McWhite, Claire; Silberg, Jonathan J; Segatori, Laura

    2014-04-08

    The ubiquitin proteasome system (UPS) has emerged as a drug target for diverse diseases characterized by altered proteostasis, but pharmacological agents that enhance UPS activity have been challenging to establish. Here we report the Deg-On system, a genetic inverter that translates proteasomal degradation of the transcriptional regulator TetR into a fluorescent signal, thereby linking UPS activity to an easily detectable output, which can be tuned using tetracycline. We demonstrate that this circuit responds to modulation of UPS activity in cell culture arising from the inhibitor MG-132 and activator PA28γ. Guided by predictive modelling, we enhanced the circuit's signal sensitivity and dynamic range by introducing a feedback loop that enables self-amplification of TetR. By linking UPS activity to a simple and tunable fluorescence output, these genetic inverters will enable a variety of applications, including screening for UPS activating molecules and selecting for mammalian cells with different levels of proteasome activity.

  18. Daily physical activity and sports participation among children from ethnic minorities in Denmark

    DEFF Research Database (Denmark)

    Nielsen, Glen; Hermansen, Bianca; Bugge, Anna

    2013-01-01

    immigrant backgrounds were not less physically active than other children when their amounts of daily physical activity were measured by direct objective measures, despite their participation rate in organised sports being much lower. Using multiple logistic regression modelling, this study showed that lack......Abstract The purpose of this study was to investigate whether Danish children from immigrant backgrounds are less physically active than children from the ethnic majority, and to investigate the possible reasons for any differences found. Accelerometer measures of physical activity as well...... as questionnaire data about organised sports, family demography, resources and values were collected from 594 children of whom 67 had other ethnic background than Danish. Data were collected when the children were 6-7 years old and again later when the children were 9-10 years old. It was found that children from...

  19. SPoRT's Participation in the GOES-R Proving Ground Activity

    Science.gov (United States)

    Jedlovec, Gary; Fuell, Kevin; Smith, Matthew; Stano, Geoffrey; Molthan, Andrew

    2011-01-01

    The next generation geostationary satellite, GOES-R, will carry two new instruments with unique atmospheric and surface observing capabilities, the Advanced Baseline Imager (ABI) and the Geostationary Lightning Mapper (GLM), to study short-term weather processes. The ABI will bring enhanced multispectral observing capabilities with frequent refresh rates for regional and full disk coverage to geostationary orbit to address many existing and new forecast challenges. The GLM will, for the first time, provide the continuous monitoring of total lightning flashes over a hemispherical region from space. NOAA established the GOES-R Proving Ground activity several years ago to demonstrate the new capabilities of these instruments and to prepare forecasters for their day one use. Proving Ground partners work closely with algorithm developers and the end user community to develop and transition proxy data sets representing GOES-R observing capabilities. This close collaboration helps to maximize refine algorithms leading to the delivery of a product that effectively address a forecast challenge. The NASA Short-term Prediction Research and Transition (SPoRT) program has been a participant in the NOAA GOES-R Proving Ground activity by developing and disseminating selected GOES-R proxy products to collaborating WFOs and National Centers. Established in 2002 to demonstrate the weather and forecasting application of real-time EOS measurements, the SPoRT program has grown to be an end-to-end research to operations activity focused on the use of advanced NASA modeling and data assimilation approaches, nowcasting techniques, and unique high-resolution multispectral data from EOS satellites to improve short-term weather forecasts on a regional and local scale. Participation in the Proving Ground activities extends SPoRT s activities and taps its experience and expertise in diagnostic weather analysis, short-term weather forecasting, and the transition of research and experimental

  20. Effect of a Sport Education Program on Motivation for Physical Education and Leisure-Time Physical Activity

    Science.gov (United States)

    Wallhead, Tristan L.; Garn, Alex C.; Vidoni, Carla

    2014-01-01

    Purpose: The purpose of this study was to examine the effect of a high school sport education curriculum program on students' motivation for physical education and leisure-time physical activity. Method: Participants were 568 high school students enrolled in the required physical education programs at 2 schools, 1 taught using sport education and…

  1. Behavioral Patterns of Women Who Employ Their Leisure Time in Sports Activities: An Application of the Football Branch

    Science.gov (United States)

    Eroglu, Yeser; Özsoy, Selami

    2017-01-01

    This study is conducted to reveal the role of gender in attending leisure time activities and to determine gender perceptions about sports branches. For this purpose, an application was performed with the participation of 7 female students from Abant Izzet Baysal University School of Physical Education and Sport. For 8 weeks, volunteer…

  2. Psychosocial Perspectives on Girls and Women in Sport and Physical Activity: A Tribute to Dorothy V. Harris.

    Science.gov (United States)

    Feltz, Deborah L.

    1992-01-01

    Introduces theme issue of this journal on the psychosocial influences on girls and women in sport and physical activity, focusing on the work of Dorothy V. Harris who battled for equal sporting opportunities and benefits for females. The papers are written from a feminist perspective. (SM)

  3. Daily physical activity in Finnish adolescents with long term illnesses or disabilities: psychosocial associations with participation in sports club

    Directory of Open Access Journals (Sweden)

    Kwok Ng

    2016-09-01

    Adolescents with LTID need encouragement to be active daily. One possible way to achieve this is through sports club participation. Implementing adaptive motivating techniques in sports clubs is especially important for girls in clubs. More research is needed on the associations of daily MVPA with different educational aspirations  for adolescents with LTID.

  4. Sports Physicals

    Science.gov (United States)

    ... Staying Safe Videos for Educators Search English Español Sports Physicals KidsHealth / For Teens / Sports Physicals What's in ... beginning of your sports season. What Is a Sports Physical? In the sports medicine field, the sports ...

  5. Inquiring Sport and Physical Activity students’ perceptions using metaphors as research tools

    OpenAIRE

    Martínez Ruiz, María Ángeles; Ávalos Ramos, María Alejandra; Merma Molina, Gladys

    2017-01-01

    The aim of this study is to analyse the metaphorical expressions designed by Science of Sport and Physical Activity university students, as a tool of inquiring two research questions: their perceptions of their physical education teachers, and the meaning physical activity has in students’ personal life. 51 students from the University of Alicante have participated in the study. Qualitative data analysis software AQUAD 6 was used for data processing. The results obtained from the analysis of ...

  6. Experiences in Sport, Physical Activity, and Physical Education Among Christian, Buddhist, and Hindu Asian Adolescent Girls

    OpenAIRE

    Araki, Kaori; Kodani, Iku; Gupta, Nidhi; Gill, Diane L.

    2013-01-01

    Multicultural scholarship in sport and exercise psychology should help us understand and apply cultural competencies for all to be physically active. In the present study, two Asian countries, Japan and Singapore, were chosen. The participation rate for physical activities among adolescent girls tends to be lower than that of boys in both countries. Thus, the purpose of the project was to gain knowledge and understanding about sociocultural factors that may explain adolescent girls' perceptio...

  7. Reasons for participation and satisfaction in physical activity, physical exercises, and sports

    OpenAIRE

    Elmer Garita Azofeifa

    2006-01-01

    Motivation in physical activity constitutes a multidimensional psychological characteristic that is influenced by the person’s internal aspects (preferences, desires, fears, etc.) and his/her experiences in the external environment (social acceptance, friends, skills, etc.).  In a period in which physical activity is globally increasing among people of all ages, it is important for physical educators, sports trainers, or physical instructors to know the main reasons for their trainees to exer...

  8. Evaluation of specific activity in the primary circuit of SMART-P

    International Nuclear Information System (INIS)

    Kim, Ah Young; Choi, Byung Seon; Kim, Seong Hoon; Yoon, Ju Hyeon; Zee, Sung Qunn

    2005-01-01

    SMART-P is a soluble boron free reactor, and the ammonia is used as a pH reagent. The titanium alloy, which has a high corrosion resistance, is chosen as a steam generator tube material. Despite these design features to achieve the corrosion reduction, it is expected that SMART-P exhibits a relatively high specific activity in the coolant due to the lack of purification during the power operation. The main reason for the high specific activity is the activation and transportation of the corrosion products that released from the primary circuit surfaces. The objective of this work is to analyze the corrosion product activity in the primary circuit of SMART-P using a multi-region model, KORA. This model, which is incorporated with the mass and activity transport between the dissolved corrosion products in the coolant and the surface, describes the specific activity of corrosion products in coolant and on the surfaces according to the operation modes

  9. Impact of Organized Sports on Activity, Participation, and Quality of Life in People With Neurologic Disabilities.

    Science.gov (United States)

    Sahlin, K Barbara; Lexell, Jan

    2015-10-01

    Physical activity and exercise is the mainstay of chronic disease prevention and health maintenance for all people with and without a disability, and clear evidence exists of the benefits among various populations with neurologic disabilities. However, the potential benefits of organized sports for people with neurologic disabilities are not as well explored. In this narrative review, current evidence regarding the impact of organized sports on activity, participation, and quality of life in people with neurologic disabilities of all ages is summarized, and facilitators of and barriers to participation in sports for this population are discussed. The articles reviewed were divided into 2 sets: (1) children and adolescents and (2) adults. The subjects of almost all of the studies were persons with a spinal cord injury. Children and adolescents with a disability who engaged in sports reported self-concept scores close to those of able-bodied athletes, as well as higher levels of physical activity. Adults with a spinal cord injury who engaged in organized sports reported decreased depression and anxiety, increased life satisfaction, and increased opportunity for gainful employment compared with nonathletic persons with disabilities. General facilitators, regardless of age, were fitness, fun, health, competence, and social aspects, whereas overall barriers were lack of or inappropriate medical advice and facilities, decreased self-esteem, poor finances, dependency on others, and views held by others. The importance of this topic for further research is highlighted, and suggestions for future studies are proposed. Copyright © 2015 American Academy of Physical Medicine and Rehabilitation. Published by Elsevier Inc. All rights reserved.

  10. 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.

  11. The motivational function of an objective in physical activity and sport

    Directory of Open Access Journals (Sweden)

    Mariusz Lipowski

    2017-12-01

    Full Text Available Background As a conscious activity of an individual, physical activity (PA constitutes an element of the free-time dimension. The type of goal allows us to distinguish between sport and PA: sport performance vs. psychophysical health. Drawing on the theory of the motivational function of an objective, this study examined the motivational function of an objective in physical activity and sport. Participants and procedures The sample consisted of 2141 individuals: 1163 women aged 16-64 years (M = 23.90, SD = 8.30 and 978 men aged 16-66 years (M = 24.50, SD = 9.40 who completed the Inventory of Physical Activity Objectives (IPAO, which includes the following scales: 1 motivational value, 2 time management, 3 persistence in action, and 4 motivational conflict. There are also questions that allow one to control for variables such as the variety of forms, duration, and frequency of PA, and socio-demographic variables. Results Males presented different motives of physical activity than females. Motives related to shapely body and health were more important for females. The most important motives for males were physical fitness and shapely body. The gender of participants moderates the motivational value of the specific objectives of physical activity and persistence in action. Conclusions With knowledge about the purposefulness of actions, it is possible to support and shape additional motivation experienced by an individual, by setting new, realistic objectives.

  12. Integrated Printed Circuit Board (PCB) Active Cooling With Piezoelectric Actuator

    Science.gov (United States)

    2012-09-01

    prepreg epoxy. Individual FR-4 lamina were mechanically machined to pattern each layer. The layers were aligned, stacked, and laminated to form the...The cooler substrate is a laminated multilayer FR-4 substrate. Individual layers are patterned to support the active element, form a resonant... laminated with 70/30 copper-nickel alloy or 80/20 nickel-chrome alloy and patterned by means of photolithographic techniques and wet etching in a ferric

  13. [Leisure-time sport activities and cardiac outpatient therapy in coronary patients].

    Science.gov (United States)

    Heitkamp, Hans-Christian; Schimpf, Thomas M; Hipp, Arno; Niess, Andreas

    2005-03-01

    Exercise intensity in coronary patients is controlled by heart rate measurements. Very few investigations have compared the maximum heart rate in cardiac outpatient groups, in leisure-time sport activities, and especially in swimming. Within different exercise conditions 21 coronary patients, nine in well-compensated cardiac condition joining a training group and twelve joining the exercise group with lower intensity, without signs of heart failure, engaged in an incremental bicycle ergometry. A six-lead ECG was derived at the same time with a 24-h ECG. The performance tolerance was measured by the pulse limit derived in 20 patients; one patient failed to show signs of subjective or objective ischemia. During a 24-h ECG monitoring, the patients took part in a 1-h standardized cardiac outpatient program, a standardized swimming program 4 x 25 m, and a typical self-selected leisure-time activity. The patients showed a peak work capacity of 2.2 W/kg and a symptom-free work capacity of 1.3 W/kg. The derived upper heart rate limit was passed during swimming by 19, during leisure-time activity by 16, and during cardiac outpatient program by two patients. The maximum of the mean overriding the limit occurred in leisure-time activity. Signs of ischemia occurred during ergometry in 15, during swimming training in ten patients, during leisure-time activity in eight, and during cardiac outpatient therapy in one. Arrhythmia leisure-time sport activity in 15, during cardiac outpatient therapy in 17, and during swimming in eight patients. Arrhythmia Lown IVa occurred in one patient each during ergometry, leisure sports, and during the night. Coronary patients are in danger to exercise beyond the pulse limit during swimming and other leisure-time sports and not during cardiac outpatient therapy. The upper heart rate limit should be observed during swimming and other endurance leisure-time activities, and is of little importance during cardiac outpatient therapy.

  14. Practical aspects of 13C surface receive coils with active decoupling and tuning circuit

    DEFF Research Database (Denmark)

    Nilsson, Daniel; Mohr, Johan Jacob; Zhurbenko, Vitaliy

    2012-01-01

    is based on application-specified coil profile and includes impedance matching and balancing circuits. Active decoupling is implemented in order to minimize the influence of the receiving coil on the homogeneity of the transmit-coil field. Measurement results for a coil prototype are presented, including...

  15. Participating in Sport and Music Activities in Adolescence: The Role of Activity Participation and Motivational Beliefs during Elementary School

    Science.gov (United States)

    Simpkins, Sandra D.; Vest, Andrea E.; Becnel, Jennifer N.

    2010-01-01

    This investigation examined the precursors of adolescents' participation in sport and music activities in the United States by testing a developmental model across 7 years. Data were drawn from youth questionnaires in the Childhood and Beyond Study (92% European American; N = 594). Findings suggest that patterns of participation across a 3-year…

  16. ESC Study Group of Sports Cardiology: recommendations for participation in leisure-time physical activity and competitive sports for patients with ischaemic heart disease.

    NARCIS (Netherlands)

    Borjesson, M.; Assanelli, D.; Carre, F.; Dugmore, D.; Panhuyzen-Goedkoop, N.M.; Seiler, C.; Senden, J.; Solberg, E.E.

    2006-01-01

    BACKGROUND: Evidence for the proper management of ischemic heart disease (IHD) in the general population is well established, but recommendations for physical activity and competitive sports in these patients are scarce. The aim of the present paper was to provide such recommendations to complement

  17. Associations of Physical Activity, Sports Participation and Active Commuting on Mathematic Performance and Inhibitory Control in Adolescents.

    Science.gov (United States)

    Domazet, Sidsel L; Tarp, Jakob; Huang, Tao; Gejl, Anne Kær; Andersen, Lars Bo; Froberg, Karsten; Bugge, Anna

    2016-01-01

    To examine objectively measured physical activity level, organized sports participation and active commuting to school in relation to mathematic performance and inhibitory control in adolescents. The design was cross-sectional. A convenient sample of 869 sixth and seventh grade students (12-14 years) was invited to participate in the study. A total of 568 students fulfilled the inclusion criteria and comprised the final sample for this study. Mathematic performance was assessed by a customized test and inhibitory control was assessed by a modified Eriksen flanker task. Physical activity was assessed with GT3X and GT3X+ accelerometers presented in sex-specific quartiles of mean counts per minute and mean minutes per day in moderate-to-vigorous physical activity. Active commuting and sports participation was self-reported. Mixed model regression was applied. Total physical activity level was stratified by bicycling status in order to bypass measurement error subject to the accelerometer. Non-cyclists in the 2nd quartile of counts per minute displayed a higher mathematic score, so did cyclists in the 2nd and 3rd quartile of moderate-to-vigorous physical activity relative to the least active quartile. Non-cyclists in the 3rd quartile of counts per minute had an improved reaction time and cyclists in the 2nd quartile of counts per minute and moderate-to-vigorous physical activity displayed an improved accuracy, whereas non-cyclists in the 2nd quartile of counts per minute showed an inferior accuracy relative to the least active quartile. Bicycling to school and organized sports participation were positively associated with mathematic performance. Sports participation and bicycling were positively associated with mathematic performance. Results regarding objectively measured physical activity were mixed. Although, no linear nor dose-response relationship was observed there was no indication of a higher activity level impairing the scholastic or cognitive performance.

  18. Associations of Physical Activity, Sports Participation and Active Commuting on Mathematic Performance and Inhibitory Control in Adolescents.

    Directory of Open Access Journals (Sweden)

    Sidsel L Domazet

    Full Text Available To examine objectively measured physical activity level, organized sports participation and active commuting to school in relation to mathematic performance and inhibitory control in adolescents.The design was cross-sectional. A convenient sample of 869 sixth and seventh grade students (12-14 years was invited to participate in the study. A total of 568 students fulfilled the inclusion criteria and comprised the final sample for this study. Mathematic performance was assessed by a customized test and inhibitory control was assessed by a modified Eriksen flanker task. Physical activity was assessed with GT3X and GT3X+ accelerometers presented in sex-specific quartiles of mean counts per minute and mean minutes per day in moderate-to-vigorous physical activity. Active commuting and sports participation was self-reported. Mixed model regression was applied. Total physical activity level was stratified by bicycling status in order to bypass measurement error subject to the accelerometer.Non-cyclists in the 2nd quartile of counts per minute displayed a higher mathematic score, so did cyclists in the 2nd and 3rd quartile of moderate-to-vigorous physical activity relative to the least active quartile. Non-cyclists in the 3rd quartile of counts per minute had an improved reaction time and cyclists in the 2nd quartile of counts per minute and moderate-to-vigorous physical activity displayed an improved accuracy, whereas non-cyclists in the 2nd quartile of counts per minute showed an inferior accuracy relative to the least active quartile. Bicycling to school and organized sports participation were positively associated with mathematic performance.Sports participation and bicycling were positively associated with mathematic performance. Results regarding objectively measured physical activity were mixed. Although, no linear nor dose-response relationship was observed there was no indication of a higher activity level impairing the scholastic or cognitive

  19. Associations of Physical Activity, Sports Participation and Active Commuting on Mathematic Performance and Inhibitory Control in Adolescents

    Science.gov (United States)

    Huang, Tao; Gejl, Anne Kær; Froberg, Karsten

    2016-01-01

    Objectives To examine objectively measured physical activity level, organized sports participation and active commuting to school in relation to mathematic performance and inhibitory control in adolescents. Methods The design was cross-sectional. A convenient sample of 869 sixth and seventh grade students (12–14 years) was invited to participate in the study. A total of 568 students fulfilled the inclusion criteria and comprised the final sample for this study. Mathematic performance was assessed by a customized test and inhibitory control was assessed by a modified Eriksen flanker task. Physical activity was assessed with GT3X and GT3X+ accelerometers presented in sex-specific quartiles of mean counts per minute and mean minutes per day in moderate-to-vigorous physical activity. Active commuting and sports participation was self-reported. Mixed model regression was applied. Total physical activity level was stratified by bicycling status in order to bypass measurement error subject to the accelerometer. Results Non-cyclists in the 2nd quartile of counts per minute displayed a higher mathematic score, so did cyclists in the 2nd and 3rd quartile of moderate-to-vigorous physical activity relative to the least active quartile. Non-cyclists in the 3rd quartile of counts per minute had an improved reaction time and cyclists in the 2nd quartile of counts per minute and moderate-to-vigorous physical activity displayed an improved accuracy, whereas non-cyclists in the 2nd quartile of counts per minute showed an inferior accuracy relative to the least active quartile. Bicycling to school and organized sports participation were positively associated with mathematic performance. Conclusions Sports participation and bicycling were positively associated with mathematic performance. Results regarding objectively measured physical activity were mixed. Although, no linear nor dose-response relationship was observed there was no indication of a higher activity level impairing the

  20. SPoRT - An End-to-End R2O Activity

    Science.gov (United States)

    Jedlovec, Gary J.

    2009-01-01

    Established in 2002 to demonstrate the weather and forecasting application of real-time EOS measurements, the Short-term Prediction Research and Transition (SPoRT) program has grown to be an end-to-end research to operations activity focused on the use of advanced NASA modeling and data assimilation approaches, nowcasting techniques, and unique high-resolution multispectral observational data applications from EOS satellites to improve short-term weather forecasts on a regional and local scale. SPoRT currently partners with several universities and other government agencies for access to real-time data and products, and works collaboratively with them and operational end users at 13 WFOs to develop and test the new products and capabilities in a "test-bed" mode. The test-bed simulates key aspects of the operational environment without putting constraints on the forecaster workload. Products and capabilities which show utility in the test-bed environment are then transitioned experimentally into the operational environment for further evaluation and assessment. SPoRT focuses on a suite of data and products from MODIS, AMSR-E, and AIRS on the NASA Terra and Aqua satellites, and total lightning measurements from ground-based networks. Some of the observations are assimilated into or used with various versions of the WRF model to provide supplemental forecast guidance to operational end users. SPoRT is enhancing partnerships with NOAA / NESDIS for new product development and data access to exploit the remote sensing capabilities of instruments on the NPOESS satellites to address short term weather forecasting problems. The VIIRS and CrIS instruments on the NPP and follow-on NPOESS satellites provide similar observing capabilities to the MODIS and AIRS instruments on Terra and Aqua. SPoRT will be transitioning existing and new capabilities into the AWIIPS II environment to continue the continuity of its activities.

  1. Objectively measured physical activity in Danish after-school cares: Does sport certification matter?

    Science.gov (United States)

    Domazet, S L; Møller, N C; Støckel, J T; Ried-Larsen, M

    2015-12-01

    Inactivity and more sedentary time predominate the daily activity level of many of today's children. In Denmark, certified sport after-school cares have been established in order to increase children's daily physical activity (PA) level. This cross-sectional study aimed to investigate the activity level among participants in certified sport after-school cares vs regular after-school cares. The study was carried out in 2011 in 10 after-school cares (5 sport/5 regular) throughout Denmark, whereof 475 children aged 5-11 years participated. PA level was assessed using Actigraph GT3X and GT3X+ activity monitors worn by the children for at least 8 consecutive days. Anthropometry and cardiorespiratory fitness were measured as well. A multivariate regression analysis was carried out to check for the differences in the PA level across the two care systems. However, there did not appear to be any differences in overall PA or in time-specific day parts (e.g., during after-school care). The activity levels were quite similar across after-school cares and were mutually high during time spent in the care facility. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  2. Mouthguards in sport activities : history, physical properties and injury prevention effectiveness.

    Science.gov (United States)

    Knapik, Joseph J; Marshall, Stephen W; Lee, Robyn B; Darakjy, Salima S; Jones, Sarah B; Mitchener, Timothy A; delaCruz, Georgia G; Jones, Bruce H

    2007-01-01

    Three systematic reviews were conducted on: (i) the history of mouthguard use in sports; (ii) mouthguard material and construction; and (iii) the effectiveness of mouthguards in preventing orofacial injuries and concussions. Retrieval databases and bibliographies were explored to find studies using specific key words for each topic. The first recorded use of mouthguards was by boxers, and in the 1920s professional boxing became the first sport to require mouthguards. Advocacy by the American Dental Association led to the mandating of mouthguards for US high school football in the 1962 season. Currently, the US National Collegiate Athletic Association requires mouthguards for four sports (ice hockey, lacrosse, field hockey and football). However, the American Dental Association recommends the use of mouthguards in 29 sports/exercise activities. Mouthguard properties measured in various studies included shock-absorbing capability, hardness, stiffness (indicative of protective capability), tensile strength, tear strength (indicative of durability) and water absorption. Materials used for mouthguards included: (i) polyvinylacetate-polyethylene or ethylene vinyl acetate (EVA) copolymer; (ii) polyvinylchloride; (iii) latex rubber; (iv) acrylic resin; and (v) polyurethane. Latex rubber was a popular material used in early mouthguards but it has lower shock absorbency, lower hardness and less tear and tensile strength than EVA or polyurethane. Among the more modern materials, none seems to stand out as superior to another since the characteristics of all the modern materials can be manipulated to provide a range of favourable characteristics. Impact studies have shown that compared with no mouthguard, mouthguards composed of many types of materials reduce the number of fractured teeth and head acceleration. In mouthguard design, consideration must be given to the nature of the collision (hard or soft objects) and characteristics of the mouth (e.g. brittle incisors, more

  3. INFLUENCE OF DIFFERENT LEVELS OF SPORTS ACTIVITIES ON THE QUALITY OF LIFE AFTER THE RECONSTRUCTION OF ANTERIOR CRUCIATE LIGAMENT.

    Science.gov (United States)

    Ninković, Srđan; Avramov, Snežana; Harhaji, Vladimir; Obradović, Mirko; Vranješ, Miodrag; Milankov, Miroslav

    2015-01-01

    The goal of this study was to examine the nature and presence of influence of different levels of sports activity on the life quality of the patients a year after the reconstruction of anterior cruciate ligament. The study included 185 patients operated at the Department of Orthopedic Surgery and Traumatology of the Clinical Centre of Vojvodina, who were followed for twelve months. Data were collected using the modified Knee Injury and Osteoarthritis Outcome Score questionnaire which included the Lysholm scale. This study included 146 male and 39 female subjects. The reconstruction of anterior cruciate ligament was equally successful in both gender groups. In relation to different types of sports activity, there were no differences in the overall life quality measured by the questionnaire and its subscales, regardless of the level (professional or recreational). However, regarding the level of sports activities, there were differences among the subjects engaged in sports activities at the national level as compared with those going in for sports activities at the recreational level, and particularly in comparison with physically inactive population. A significant correlation was not found by examining the aforementioned relationship between sports activities. This study has shown that the overall life quality a year after the reconstruction of the anterior cruciate ligament does not differ in relation to either the gender of the subjects or the type of sports activity, while the level of sports activity does have some influence on the quality of life. Professional athletes have proved to train significantly more intensively after this reconstruction than those going in for sports recreationally.

  4. Original article Inventory of Physical Activity Objectives – a new method of measuring motives for physical activity and sport

    Directory of Open Access Journals (Sweden)

    Mariusz Lipowski

    2015-02-01

    Full Text Available Background As a conscious activity of an individual, physical activity (PA constitutes an element of the free-time dimension. The type of goal allows us to distinguish between sport and PA: sport performance vs. psychophysical health – hence the idea to develop a tool for measurement of the motivational function of an objective in physical activity and sport. Participants and procedure The normalisation sample consisted of 2141 individuals: 1163 women aged 16-64 (M = 23.90, SD = 8.30 and 978 men aged 16-66 (M = 24.50, SD = 9.40. In the process of validation, a factor analysis, and subsequently validity and reliability analysis of the tool, and normalisation of scales were performed. Results Based on the factor analysis and the degree to which each of the given items conformed to the theory of the motivational function of an objective, the following scales were distinguished: 1 motivational value (the extent to which the objective influences the actions undertaken by an individual, 2 time management (the level of focus on planning, arranging and organizing time for PA, 3 persistence in action (efficiency and persistence of action, and the ability to deal with adversities, and 4 motivational conflict (the level of conflict: PA objectives vs. other objectives. The Cronbach’s α reliability coefficient for this version reached .78. The Inventory of Physical Activity Objectives (IPAO also included questions that allow one to control for variables such as the variety of forms, duration, and frequency of PA, and socio-demographic variables. Conclusions The IPAO, as a new method for measuring motives for physical activity and sport, is characterized by good psychometric properties. The IPAO can serve both scientific research and as a useful tool for personal trainers, helping diagnose the motives for engaging in PA and sports. With knowledge about the purposefulness of actions, it is possible to support and shape additional motivation experienced by

  5. Media use, sports activities, and motor fitness in childhood and adolescence.

    Science.gov (United States)

    Kaiser-Jovy, Sebastian; Scheu, Anja; Greier, Klaus

    2017-07-01

    Physical activity is one of the key determinants of physical, mental, and social health of children and adolescents. Therefore, the early development of health-relevant behavior patterns is of high relevance. To examine the impact of selected socioeconomic factors as well as media consumption, on sports activities and the motor skills of 10- to 14-year-old secondary school students. Body height and body weight were measured. The motor skills were determined with the Deutschen Motorik Test (DMT 6‑18; German Motor Test). Information about media use, media equipment, recreational sports activities, migration status, and the parents' profession was collected by means of a standardized questionnaire. A total of 391 adolescents have been tested (male 235; female 156). Body mass index (BMI) types are evenly distributed on gender. On a weekday, the pupils spend 10.3 h using media (SD ± 9.1 h). On weekends, media use increases up to 12 h per day on average (SD ± 9.7 h). The number of available media is independent from the age of the respondents and the social status of their families. According to bivariate correlations, heavy media use, a high BMI as well as migration status correlate negatively with both sports activities and motor skills. BMI seems to have the strongest influence on athletic performance (b = 0.41). Media use is an important determinant of juvenile sports activity and motor performance, being part of a complex juvenile leisure behavior.

  6. Perceived sports competence mediates the relationship between childhood motor skill proficiency and adolescent physical activity and fitness: a longitudinal assessment

    OpenAIRE

    van Beurden Eric; Morgan Philip J; Barnett Lisa M; Beard John R

    2008-01-01

    Abstract Background The purpose of this paper was to investigate whether perceived sports competence mediates the relationship between childhood motor skill proficiency and subsequent adolescent physical activity and fitness. Methods In 2000, children's motor skill proficiency was assessed as part of a school-based physical activity intervention. In 2006/07, participants were followed up as part of the Physical Activity and Skills Study and completed assessments for perceived sports competenc...

  7. Oncogenes Activate an Autonomous Transcriptional Regulatory Circuit That Drives Glioblastoma

    Directory of Open Access Journals (Sweden)

    Dinesh K. Singh

    2017-01-01

    Full Text Available Efforts to identify and target glioblastoma (GBM drivers have primarily focused on receptor tyrosine kinases (RTKs. Clinical benefits, however, have been elusive. Here, we identify an SRY-related box 2 (SOX2 transcriptional regulatory network that is independent of upstream RTKs and capable of driving glioma-initiating cells. We identified oligodendrocyte lineage transcription factor 2 (OLIG2 and zinc-finger E-box binding homeobox 1 (ZEB1, which are frequently co-expressed irrespective of driver mutations, as potential SOX2 targets. In murine glioma models, we show that different combinations of tumor suppressor and oncogene mutations can activate Sox2, Olig2, and Zeb1 expression. We demonstrate that ectopic co-expression of the three transcription factors can transform tumor-suppressor-deficient astrocytes into glioma-initiating cells in the absence of an upstream RTK oncogene. Finally, we demonstrate that the transcriptional inhibitor mithramycin downregulates SOX2 and its target genes, resulting in markedly reduced proliferation of GBM cells in vivo.

  8. Promoting physical activity among children and youth in disadvantaged South Australian CALD communities through alternative community sport opportunities.

    Science.gov (United States)

    Rosso, Edoardo; McGrath, Richard

    2016-02-29

    Issue addressed: Recently arrived migrants and refugees from a culturally and linguistically diverse background (CALD) may be particularly vulnerable to social exclusion. Participation in sport is endorsed as a vehicle to ease the resettlement process; however, in Australia, this is often thought as a simple matter of integration into existing sport structures (e.g. clubs). This approach fails to place actual community needs at the centre of sport engagement efforts. Methods: A consultation framework was established with South Australian CALD community leaders and organisations to scope needs for community-based alternatives to participation in traditional sport (e.g. clubs), co-design a suitable community sport program and pilot it in five communities. Interviews and questionnaire surveys were conducted with participants, community representatives, stakeholders and volunteers. Results: Regular, free soccer activities engaged 263 young people from a great variety of nationalities, including over 50% refugees, in secondary state school and community-based sites. Conclusion: Alternative community sport programs can provide a basic but valuable forum to promote physical activity and associated well being in CALD and refugee communities. So what?: Alternative approaches can extend the health benefits of sport participation to disadvantaged children and youth who are excluded from traditional sport participation opportunities.

  9. Bidirectional global spontaneous network activity precedes the canonical unidirectional circuit organization in the developing hippocampus.

    Science.gov (United States)

    Shi, Yulin; Ikrar, Taruna; Olivas, Nicholas D; Xu, Xiangmin

    2014-06-15

    Spontaneous network activity is believed to sculpt developing neural circuits. Spontaneous giant depolarizing potentials (GDPs) were first identified with single-cell recordings from rat CA3 pyramidal neurons, but here we identify and characterize a large-scale spontaneous network activity we term global network activation (GNA) in the developing mouse hippocampal slices, which is measured macroscopically by fast voltage-sensitive dye imaging. The initiation and propagation of GNA in the mouse is largely GABA-independent and dominated by glutamatergic transmission via AMPA receptors. Despite the fact that signal propagation in the adult hippocampus is strongly unidirectional through the canonical trisynaptic circuit (dentate gyrus [DG] to CA3 to CA1), spontaneous GNA in the developing hippocampus originates in distal CA3 and propagates both forward to CA1 and backward to DG. Photostimulation-evoked GNA also shows prominent backward propagation in the developing hippocampus from CA3 to DG. Mouse GNA is strongly correlated to electrophysiological recordings of highly localized single-cell and local field potential events. Photostimulation mapping of neural circuitry demonstrates that the enhancement of local circuit connections to excitatory pyramidal neurons occurs over the same time course as GNA and reveals the underlying pathways accounting for GNA backward propagation from CA3 to DG. The disappearance of GNA coincides with a transition to the adult-like unidirectional circuit organization at about 2 weeks of age. Taken together, our findings strongly suggest a critical link between GNA activity and maturation of functional circuit connections in the developing hippocampus. Copyright © 2013 Wiley Periodicals, Inc.

  10. Factors associated with body image dissatisfaction in Portuguese adolescents: obesity, sports activity and TV watching

    Directory of Open Access Journals (Sweden)

    Eduarda Maria Rocha Teles de Castro Coelho

    2016-10-01

    Full Text Available This cross-sectional study intended to determine the prevalence of body image dissatisfaction and associated factors in Portuguese adolescents (N=529, 10-18 years, 53.7% male and 46.3% female. The prevalence of body dissatisfaction (estimated through Collins's silhouettes was 58%. Multivariate logistic regression analyses showed that the variables associated were: obesity, watch TV over 2 hours/day and practice sport activities 4 or more days/week. In male, obesity and watch TV over 2 hours/day were related to body dissatisfaction and among female only obesity had statistical significance. It is necessary to considered different public health interventions for men and women in order to reduce this high body image dissatisfaction.   Keywords: Body image, adolescence, gender, obesity, sports activity

  11. Sports and leisure-time physical activity in pregnancy and birth weight

    DEFF Research Database (Denmark)

    Hegaard, Hanne Kristine; Petersson, K; Hedegaard, M

    2010-01-01

    We examined the association between sports and other leisure-time physical activities during pregnancy and birth weight of babies born after 37 completed weeks of gestation. All Danish-speaking pregnant women attending routine antenatal care at the Department of Obstetrics, Aarhus University......, light, and moderate to heavy) and birth weight were examined by linear and logistic regression and adjusted for potential confounding factors such as smoking, parity, schooling, pre-pregnancy body mass index and gestational age. The results showed that pregnant women who practiced sports or were...... moderate to heavy leisure-time physical active during the early second or the early third trimester gave birth to infants with a similar birth weight as inactive women. The proportion of newborns with a low (/=4500 g) was also unchanged. In conclusion, in this large population-based study, we found...

  12. Recommendations for participation in leisure-time physical activity and competitive sports in patients with arrhythmias and potentially arrhythmogenic conditions Part I: Supraventricular arrhythmias and pacemakers.

    NARCIS (Netherlands)

    Heidbuchel, H.; Panhuyzen-Goedkoop, N.M.; Corrado, D.; Hoffmann, E.; Biffi, A.; Delise, P.; Blomstrom-Lundqvist, C.; Vanhees, L.; Ivarhoff, P.; Dorwarth, U.; Pelliccia, A.

    2006-01-01

    This document by the Study Group on Sports Cardiology of the European Society of Cardiology extends on previous recommendations for sports participation for competitive athletes by also incorporating guidelines for those who want to perform recreational physical activity. For different

  13. Familiar Sports and Activities Adapted for Multiply Impaired Persons.

    Science.gov (United States)

    Schilling, Mary Lou, Ed.

    1984-01-01

    Means of adapting some familiar and popular physical activities for multiply impaired persons are described. Games reviewed are dice baseball, one base baseball, in-house bowling, wheelchair bowling, ramp bowling, swing-ball bowling, table tennis, shuffleboard, beanbag bingo and tic-tac-toe, balloon basketball, circle football, and wheelchair…

  14. The effect of frequency and mode of sports activity on the psychological status in tetraplegics and paraplegics.

    Science.gov (United States)

    Muraki, S; Tsunawake, N; Hiramatsu, S; Yamasaki, M

    2000-05-01

    To examine whether the psychological benefits of sports activity differ between tetraplegics and paraplegics with spinal cord injury, and investigate the effect of frequency and modes of sports activity on the psychological benefits. The Self-rating Depression Scale (SDS), State-Trait Anxiety Inventory (STAI) and Profiles of Mood States (POMS) were administered to 169 male individuals with spinal cord injury (mean age=42.7 years) including 53 tetraplegics and 116 paraplegics. The subjects were divided into four groups according to their frequencies of sports activity; High-active (more than three times a week; n=32), Middle-active (once or twice a week, n=41), Low-active (once to three times a month, n=32), and Inactive (no sports participation, n=64). Analysis of variance revealed significant differences in depression for SDS, trait anxiety for STAI and depression and vigor for POMS among the groups. High-active group showed the lowest scores of depression and trait anxiety and the highest score of vigor among the four groups. In contrast, no significant difference was found for any psychological measurements between tetraplegics and paraplegics. In addition, there was no significant difference for any psychological measurements among modes (wheelchair basketball, wheelchair racing, wheelchair tennis and minor modes). These findings demonstrated that sports activity can improve the psychological status, irrespective of tetraplegics and paraplegics, and that the psychological benefits are emphasized by sports activity at high frequency.

  15. [Sports purpura].

    Science.gov (United States)

    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.

  16. Do patients with ewing's sarcoma continue with sports activities after limb salvage surgery of the lower extremity?

    Science.gov (United States)

    Hobusch, Gerhard Martin; Lang, Nikolaus; Schuh, Reinhard; Windhager, Reinhard; Hofstaetter, Jochen Gerhard

    2015-03-01

    Limb salvage surgery has evolved to become the standard method of treating sarcomas of the extremities with acceptable oncologic results. However, little information exists relative to the activity level or ability to participate in sports after tumor reconstructions. The aims of the study were to answer the following questions: (1) Which sports activity levels and what types of sports can be expected in the long term after tumor reconstruction? (2) Which frequency durations are patients with Ewing's sarcoma able to perform in long-term followup after local control? (3) Do surgical complications affect sports activity level? Thirty patients (13 females, 17 males; mean age, 18 ± 8 years; range, 2-36 years at diagnosis; mean followup 16 ± 6 years [minimum, 5 years]) were included. Tumors were located in the pelvis, femur, tibia, and fibula. Surgical procedures included surgical resections alone (n = 8), surgical resection with biological reconstruction (n = 9), or endoprosthetic reconstruction (n = 13). We assessed UCLA sports activity levels, kinds of sports as well as the frequency per week and the duration of each training unit at long term (minimum followup, 5 years). In long-term followup 83% patients (25 of 30) were performing athletic activity regularly. The hours/week of sports depended on type of surgery and were highest after resections in the pelvis and femur (5.8) and were lowest after megaprosthetic reconstruction of the pelvis (1.0). Patients undergoing biologic reconstructions were able to perform high-impact sports. UCLA sports activity levels were high after joint-preserving vascularized fibula for tibia reconstruction (7.4) and after megaprosthetic reconstruction of the lower extremity (6.3-6.4) and were low after tumors located in the fibula (4.2). Complications during followup did not significantly influence sports activity in long-term survivors. Long-term survivors can achieve high levels of sports activity in many instances. Tumor sites are

  17. Recommendations for participation in competitive sport and leisure-time physical activity in individuals with cardiomyopathies, myocarditis and pericarditis.

    Science.gov (United States)

    Pelliccia, Antonio; Corrado, Domenico; Bjørnstad, Hans Halvor; Panhuyzen-Goedkoop, Nicole; Urhausen, Axel; Carre, Francois; Anastasakis, Aris; Vanhees, Luc; Arbustini, Eloisa; Priori, Silvia

    2006-12-01

    Several relatively uncommon, but important cardiovascular diseases are associated with increased risk for acute cardiac events during exercise (including sudden death), such as hypertrophic cardiomyopathy (HCM), dilated cardiomyopathy (DCM), arrhythmogenic right ventricular cardiomyopathy (ARVC) and myo-pericarditis. Practising cardiologists are frequently asked to advise on exercise programmes and sport participation in young individuals with these cardiovascular diseases. Indeed, many asymptomatic (or mildly symptomatic) patients with cardiomyopathies aspire to a physically active lifestyle to take advantage of the many documented benefits of exercise. While recommendations dictating the participation in competitive sport for athletes with cardiomyopathies and myo-pericarditis have recently been published as a consensus document of the European Society of Cardiology, no European guidelines have addressed the possible participation of patients with cardiomyopathies in recreational and amateur sport activities. The present document is intended to offer a comprehensive overview to practising cardiologists and sport physicians of the recommendations governing safe participation in different types of competitive sport, as well as the participation in a variety of recreational physical activities and amateur sports in individuals with cardiomyopathies and myo-pericarditis. These recommendations, based largely on the experience and insights of the expert panel appointed by the European Society of Cardiology, include the most up-to-date information concerning regular exercise and sports activity in patients with cardiomyopathies and myo-pericarditis.

  18. PREMISSES AND OPINIONS OF STUDENTS ABOUT BASKETBALL AND OTHER AKTIVITIES IN THEIR SPORT ACTIVITIES (

    Directory of Open Access Journals (Sweden)

    Budimir Bijelić

    2009-11-01

    Full Text Available Actual conditions and styles of young people’s lives suggest to a teacher an oc- currence of different diseases of basic organic systems and functions in organism. So far experience and practice proved that with appropriate matters and resources of exercise can and must be prevented and/or mitigate all the problems from ‘’this chain’’ of actual states or diseases (obesity, diabetis, cardio diseases, respirator problems, etc. The goal of this process is the analyses of the premisses and opinions in a speci- ment of 380 students of University of Montenegro, in a relation to their most interesting profiles and matters of exercise, such as basketball, etc. In the process were used de- scriptive and analytic methods with inquiry as the instrument of the research. With the analyses of given results it is ratified that student population has signifi- cant needs for regular sport activities, and also positive premisses and knoledge that this kind of activity is the most important to them for taking care and improvement of their health, life condition, mood, social activities, etc. As the most interesting matters which students take affect in or they would take part in are sport games among which basket- ball is ranked as number one sport, then running, fitness, etc

  19. Socializing Agents for Sport and Physical Activities in Teenage Students: Comparative Studies in Samples From Costa Rica, Mexico, and Spain.

    Science.gov (United States)

    Ruiz-Juan, Francisco; Baena-Extremera, Antonio; Granero-Gallegos, Antonio

    2017-01-01

    The aim of this study is to analyze a set of socializing agents for sport and physical activities and to establish their relationship with leisure time sport and physical activities behaviors and practice patterns in samples of teenage students with different sociocultural backgrounds. The sample included 2168 students in their first year of secondary education, 423 of them being from Costa Rica, 408 from Mexico, and 1337 from Spain (1052 male students, 1037 female students, and 79 students who did not specify gender) aged 11-16 years old ( M = 12.49; SD = .81). A validated questionnaire with questions about leisure time sport and physical activities and socializing agents was used. Descriptive, inferential, and multinomial logistic regression analyses were carried out with SPSS 17.0 to compare all three countries. Costa Rica had the most active students, best friends' inactivity, and unsupportive parents being the agents predicting inactivity and a low level of sport and physical activities. Mexico has a high dropout rate and inactive students exceed active ones; no agent predicts inactivity or sport and physical activities pattern. Spain has the highest level of sport and physical activities practice, and parents, siblings, and friends are predicting agents of inactivity together with unsupportive parents and friends.

  20. When Is a Sprint a Sprint? A Review of the Analysis of Team-Sport Athlete Activity Profile

    Directory of Open Access Journals (Sweden)

    Alice J. Sweeting

    2017-06-01

    Full Text Available The external load of a team-sport athlete can be measured by tracking technologies, including global positioning systems (GPS, local positioning systems (LPS, and vision-based systems. These technologies allow for the calculation of displacement, velocity and acceleration during a match or training session. The accurate quantification of these variables is critical so that meaningful changes in team-sport athlete external load can be detected. High-velocity running, including sprinting, may be important for specific team-sport match activities, including evading an opponent or creating a shot on goal. Maximal accelerations are energetically demanding and frequently occur from a low velocity during team-sport matches. Despite extensive research, conjecture exists regarding the thresholds by which to classify the high velocity and acceleration activity of a team-sport athlete. There is currently no consensus on the definition of a sprint or acceleration effort, even within a single sport. The aim of this narrative review was to examine the varying velocity and acceleration thresholds reported in athlete activity profiling. The purposes of this review were therefore to (1 identify the various thresholds used to classify high-velocity or -intensity running plus accelerations; (2 examine the impact of individualized thresholds on reported team-sport activity profile; (3 evaluate the use of thresholds for court-based team-sports and; (4 discuss potential areas for future research. The presentation of velocity thresholds as a single value, with equivocal qualitative descriptors, is confusing when data lies between two thresholds. In Australian football, sprint efforts have been defined as activity >4.00 or >4.17 m·s−1. Acceleration thresholds differ across the literature, with >1.11, 2.78, 3.00, and 4.00 m·s−2 utilized across a number of sports. It is difficult to compare literature on field-based sports due to inconsistencies in velocity and

  1. Interrelation of Sport Participation, Physical Activity, Social Capital and Mental Health in Disadvantaged Communities: A SEM-Analysis.

    Science.gov (United States)

    Marlier, Mathieu; Van Dyck, Delfien; Cardon, Greet; De Bourdeaudhuij, Ilse; Babiak, Kathy; Willem, Annick

    2015-01-01

    The Health through Sport conceptual model links sport participation with physical, social and psychological outcomes and stresses the need for more understanding between these outcomes. The present study aims to uncover how sport participation, physical activity, social capital and mental health are interrelated by examining these outcomes in one model. A cross-sectional survey was conducted in nine disadvantaged communities in Antwerp (Belgium). Two hundred adults (aged 18-56) per community were randomly selected and visited at home to fill out a questionnaire on socio-demographics, sport participation, physical activity, social capital and mental health. A sample of 414 adults participated in the study. Structural Equation Modeling analysis showed that sport participation (β = .095) and not total physical activity (β = .027) was associated with better mental health. No association was found between sport participation and community social capital (β = .009) or individual social capital (β = .045). Furthermore, only community social capital was linked with physical activity (β = .114), individual social capital was not (β = -.013). In contrast, only individual social capital was directly associated with mental health (β = .152), community social capital was not (β = .070). This study emphasizes the importance of sport participation and individual social capital to improve mental health in disadvantaged communities. It further gives a unique insight into the functionalities of how sport participation, physical activity, social capital and mental health are interrelated. Implications for policy are that cross-sector initiatives between the sport, social and health sector need to be supported as their outcomes are directly linked to one another.

  2. Interrelation of Sport Participation, Physical Activity, Social Capital and Mental Health in Disadvantaged Communities: A SEM-Analysis

    Science.gov (United States)

    Marlier, Mathieu; Van Dyck, Delfien; Cardon, Greet; De Bourdeaudhuij, Ilse; Babiak, Kathy; Willem, Annick

    2015-01-01

    Background The Health through Sport conceptual model links sport participation with physical, social and psychological outcomes and stresses the need for more understanding between these outcomes. The present study aims to uncover how sport participation, physical activity, social capital and mental health are interrelated by examining these outcomes in one model. Methods A cross-sectional survey was conducted in nine disadvantaged communities in Antwerp (Belgium). Two hundred adults (aged 18–56) per community were randomly selected and visited at home to fill out a questionnaire on socio-demographics, sport participation, physical activity, social capital and mental health. A sample of 414 adults participated in the study. Results Structural Equation Modeling analysis showed that sport participation (β = .095) and not total physical activity (β = .027) was associated with better mental health. No association was found between sport participation and community social capital (β = .009) or individual social capital (β = .045). Furthermore, only community social capital was linked with physical activity (β = .114), individual social capital was not (β = -.013). In contrast, only individual social capital was directly associated with mental health (β = .152), community social capital was not (β = .070). Conclusion This study emphasizes the importance of sport participation and individual social capital to improve mental health in disadvantaged communities. It further gives a unique insight into the functionalities of how sport participation, physical activity, social capital and mental health are interrelated. Implications for policy are that cross-sector initiatives between the sport, social and health sector need to be supported as their outcomes are directly linked to one another. PMID:26451731

  3. Active component modeling for analog integrated circuit design. Model parametrization and implementation in the SPICE-PAC circuit simulator

    International Nuclear Information System (INIS)

    Marchal, Xavier

    1992-01-01

    In order to use CAD efficiently in the analysis and design of electronic Integrated circuits, adequate modeling of active non-linear devices such as MOSFET transistors must be available to the designer. Many mathematical forms can be given to those models, such as explicit relations, or implicit equations to be solved. A major requirement in developing MOS transistor models for IC simulation is the availability of electrical characteristic curves over a wide range of channel width and length, including the sub-micrometer range. To account in a convenient way for bulk charge influence on I_D_S = f(V_D_S, V_G_S, v_B_S) device characteristics, all 3 standard SPICE MOS models use an empirical fitting parameter called the 'charge sharing factor'. Unfortunately, this formulation produces models which only describe correctly either some of the short channel phenomena, or some particular operating conditions (low injection, avalanche effect, etc.). We present here a cellular model (CDM = Charge Distributed Model) implemented in the open modular SPICE-PAC Simulator; this model is derived from the 4-terminal WANG charge controlled MOSFET model, using the charge sheet approximation. The CDM model describes device characteristics in ail operating regions without introducing drain current discontinuities and without requiring a 'charge sharing factor'. A usual problem to be faced by designers when they simulate MOS ICs is to find a reliable source of model parameters. Though most models have a physical basis, some of their parameters cannot be easily estimated from physical considerations. It can also happen that physically determined parameters values do not produce a good fit to measured device characteristics. Thus it is generally necessary to extract model parameters from measured transistor data, to ensure that model equations approximate measured curves accurately enough. Model parameters extraction can be done in 2 different ways, exposed in this thesis. The first

  4. Fluorescence-based monitoring of in vivo neural activity using a circuit-tracing pseudorabies virus.

    Directory of Open Access Journals (Sweden)

    Andrea E Granstedt

    Full Text Available The study of coordinated activity in neuronal circuits has been challenging without a method to simultaneously report activity and connectivity. Here we present the first use of pseudorabies virus (PRV, which spreads through synaptically connected neurons, to express a fluorescent calcium indicator protein and monitor neuronal activity in a living animal. Fluorescence signals were proportional to action potential number and could reliably detect single action potentials in vitro. With two-photon imaging in vivo, we observed both spontaneous and stimulated activity in neurons of infected murine peripheral autonomic submandibular ganglia (SMG. We optically recorded the SMG response in the salivary circuit to direct electrical stimulation of the presynaptic axons and to physiologically relevant sensory stimulation of the oral cavity. During a time window of 48 hours after inoculation, few spontaneous transients occurred. By 72 hours, we identified more frequent and prolonged spontaneous calcium transients, suggestive of neuronal or tissue responses to infection that influence calcium signaling. Our work establishes in vivo investigation of physiological neuronal circuit activity and subsequent effects of infection with single cell resolution.

  5. Return to Sports and Physical Activities After Primary Partial Arthrodesis for Lisfranc Injuries in Young Patients.

    Science.gov (United States)

    MacMahon, Aoife; Kim, Paul; Levine, David S; Burket, Jayme; Roberts, Matthew M; Drakos, Mark C; Deland, Jonathan T; Elliott, Andrew J; Ellis, Scott J

    2016-04-01

    Research regarding outcomes in sports and physical activities after primary partial arthrodesis for Lisfranc injuries has been sparse. The purposes of this study were to assess various sports and physical activities in young patients following primary partial arthrodesis for Lisfranc injuries and to compare these with clinical outcomes. Patients who underwent primary partial arthrodesis for a Lisfranc injury were identified by a retrospective registry review. Thirty-eight of 46 eligible patients (83%) responded for follow-up at a mean of 5.2 (range, 1.0 to 9.3) years with a mean age at surgery of 31.8 (range, 16.8 to 50.3) years. Physical activity participation was assessed with a new sports-specific, patient-administered questionnaire. Clinical outcomes were assessed with the Foot and Ankle Outcome Score (FAOS). Patients participated in 29 different and 155 total physical activities preoperatively, and 27 different and 145 total physical activities postoperatively. Preoperatively, 47.1% were high impact, and postoperatively, 44.8% were high impact. The most common activities were walking, bicycling, running, and weightlifting. Compared to preoperatively, difficulty was the same in 66% and increased in 34% of physical activities. Participation levels were improved in 11%, the same in 64%, and impaired in 25% of physical activities. Patients spent on average 4.2 (range, 0.0 to 19.8) hours per week exercising postoperatively. In regard to return to physical activity, 97% of respondents were satisfied with their operative outcome. Mean postoperative FAOS subscores were significantly worse for patients who had increased physical activity difficulty. Most patients were able to return to their previous physical activities following primary partial arthrodesis for a Lisfranc injury, many of which were high-impact. However, the decreased participation or increase in difficulty of some activities suggests that some patients experienced postoperative limitations in exercise

  6. A voltage control method for an active capacitive DC-link module with series-connected circuit

    DEFF Research Database (Denmark)

    Wang, Haoran; Wang, Huai; Blaabjerg, Frede

    2017-01-01

    Many efforts have been made to improve the performance of power electronic systems with active capacitive DC-link module in terms of power density as well as reliability. One of the attractive solution is an active capacitive DC-link with the series-connected circuit because of handling small......-rated power. However, in the existing control method of this circuit, the DC-link current of the backward-stage or forward-stage need to be sensed for extracting the ripple components, which limits the flexibility of the active DC-link module. Thus, in this paper, a voltage control method of an active...... capacitive DC-link module is proposed. Current sensor at the DC-link will be cancel from the circuit. The controller of the series-connected circuit requires internal voltage signals of the DC-link module only, making it possible to be fully independent without any additional connection to the main circuit...

  7. Dealing with negative stereotypes in sports: The role of cognitive anxiety when multiple identities are activated in sensorimotor tasks

    OpenAIRE

    Martiny, Sarah E.; Gleibs, Ilka H.; Parks-Stamm, Elizabeth J.; Martiny-Huenger, Torsten; Froehlich, Laura; Harter, Anna-Lena; Roth, Jenny

    2015-01-01

    Accepted manuscript version. Published version at http://dx.doi.org/10.1123/jsep.2014-0284. Based on research on stereotype threat and multiple identities, this work explores the beneficial effects of activating a positive social identity when a negative identity is salient on women’s performance in sports. Further, in line with research on the effects of anxiety in sports, we investigate whether the activation of a positive social identity buffers performance from cognitive anxiety associ...

  8. Criteria of psychological efficiency of realization system of psychology-pedagogical support of sports activity of sportsmen-disables

    Directory of Open Access Journals (Sweden)

    Boyko G.

    2010-02-01

    Full Text Available Efficiency of the system of psychological pedagogical accompaniment of sporting activity is certain. In research the sportsmen of high qualification took part in sport of invalids. Prevailing high level of readiness of swimmers is rotined to self-realization in competition activity. On results procedure of self-appraisal 68,75 % sportsmen were attained optimum level of readiness, 14,58 % - base (sufficient, 14,58 % - middle (insufficient, 02,08 % - low (critical.

  9. A good walk spoiled: on the disappearance of golf as an active sport in America.

    Science.gov (United States)

    Puterbaugh, James S

    2011-07-01

    During the past 60 years, there has been a major transition in the way golf is played in America. Its potential as exercise largely has been negated by the increase in motorized golf cart usage to approximately two of every three rounds played in this country. Accidents in golf carts have increased rapidly, which, by making the sport more dangerous, will likely bring future regulations. Consequently, playing golf has gradually become more of a public health threat than a benefit. The motorized cart also has resulted in an almost doubling of the size of golf courses, which now occupy a large amount of the built environment designated for activity. These changes are a major loss to society, portend future problems, and call for the sport to reevaluate its current model.

  10. The Effect of Sports and Physical Activity on Elderly Reaction Time and Response Time

    Directory of Open Access Journals (Sweden)

    Abdolrahman Khezri

    2014-07-01

    Full Text Available Objectives: Physical activities ameliorate elderly motor and cognitive performance. The aim of this research is to study the effect of sport and physical activity on elderly reaction time and response time. Methods & Materials: The research method is causal-comparative and its statistical population consists of 60 active and non-active old males over 60 years residing at Mahabad city. Reaction time was measured by reaction timer apparatus, made in Takei Company (YB1000 model. Response time was measured via Nelson’s Choice- Response Movement Test. At first, reaction time and then response time was measured. For data analysis, descriptive statistic, K-S Test and One Sample T Test were used Results K-S Test show that research data was parametric. According to the results of this research, physical activity affected reaction time and response time. Results: of T test show that reaction time (P=0.000 and response time (P=0.000 of active group was statistically shorter than non- active group. Conclusion: The result of current study demonstrate that sport and physical activity, decrease reaction and response time via psychomotor and physiological positive changes.

  11. Effects of a School-Based Sports Program on Physical Fitness, Physical Activity, and Cardiometabolic Health in Youth With Physical Disabilities: Data From the Sport-2-Stay-Fit Study.

    Science.gov (United States)

    Zwinkels, Maremka; Verschuren, Olaf; Balemans, Astrid; Lankhorst, Kristel; Te Velde, Saskia; van Gaalen, Leendert; de Groot, Janke; Visser-Meily, Anne; Takken, Tim

    2018-01-01

    To investigate the effects of a school-based once-a-week sports program on physical fitness, physical activity, and cardiometabolic health in children and adolescents with a physical disability. This controlled clinical trial included 71 children and adolescents from four schools for special education [mean age 13.7 (2.9) years, range 8-19, 55% boys]. Participants had various chronic health conditions including cerebral palsy (37%), other neuromuscular (44%), metabolic (8%), musculoskeletal (7%), and cardiovascular (4%) disorders. Before recruitment and based on the presence of school-based sports, schools were assigned as sport or control group. School-based sports were initiated and provided by motivated experienced physical educators. The sport group ( n  = 31) participated in a once-a-week school-based sports program for 6 months, which included team sports. The control group ( n  = 40) followed the regular curriculum. Anaerobic performance was assessed by the Muscle Power Sprint Test. Secondary outcome measures included aerobic performance, VO 2 peak, strength, physical activity, blood pressure, arterial stiffness, body composition, and the metabolic profile. A significant improvement of 16% in favor of the sport group was found for anaerobic performance ( p  = 0.003). In addition, the sport group lost 2.8% more fat mass compared to the control group ( p  = 0.007). No changes were found for aerobic performance, VO 2 peak, physical activity, blood pressure, arterial stiffness, and the metabolic profile. Anaerobic performance and fat mass improved following a school-based sports program. These effects are promising for long-term fitness and health promotion, because sports sessions at school eliminate certain barriers for sports participation and adding a once-a-week sports session showed already positive effects for 6 months. This trial was registered with the Dutch Trial Registry (NTR4698).

  12. Effects of a School-Based Sports Program on Physical Fitness, Physical Activity, and Cardiometabolic Health in Youth With Physical Disabilities: Data From the Sport-2-Stay-Fit Study

    Directory of Open Access Journals (Sweden)

    Maremka Zwinkels

    2018-03-01

    Full Text Available ObjectiveTo investigate the effects of a school-based once-a-week sports program on physical fitness, physical activity, and cardiometabolic health in children and adolescents with a physical disability.MethodsThis controlled clinical trial included 71 children and adolescents from four schools for special education [mean age 13.7 (2.9 years, range 8–19, 55% boys]. Participants had various chronic health conditions including cerebral palsy (37%, other neuromuscular (44%, metabolic (8%, musculoskeletal (7%, and cardiovascular (4% disorders. Before recruitment and based on the presence of school-based sports, schools were assigned as sport or control group. School-based sports were initiated and provided by motivated experienced physical educators. The sport group (n = 31 participated in a once-a-week school-based sports program for 6 months, which included team sports. The control group (n = 40 followed the regular curriculum. Anaerobic performance was assessed by the Muscle Power Sprint Test. Secondary outcome measures included aerobic performance, VO2 peak, strength, physical activity, blood pressure, arterial stiffness, body composition, and the metabolic profile.ResultsA significant improvement of 16% in favor of the sport group was found for anaerobic performance (p = 0.003. In addition, the sport group lost 2.8% more fat mass compared to the control group (p = 0.007. No changes were found for aerobic performance, VO2 peak, physical activity, blood pressure, arterial stiffness, and the metabolic profile.ConclusionAnaerobic performance and fat mass improved following a school-based sports program. These effects are promising for long-term fitness and health promotion, because sports sessions at school eliminate certain barriers for sports participation and adding a once-a-week sports session showed already positive effects for 6 months.Clinical Trial RegistrationThis trial was registered with the Dutch Trial Registry (NTR

  13. Sports nutrition

    Directory of Open Access Journals (Sweden)

    Tomanić Milena

    2016-01-01

    Full Text Available Due to higher energy consumption, physically active people have higher nutritional requirements. In addition to other important factors for sports, such as good health and physical predisposition, adequate nutrition is a fundamental component. Sports nutrition must be well planned and individually adapted based on physical characteristics, tendencies towards gaining or losing weight, frequency, duration and intensity of training sessions. Studies have shown that a well-balanced ratio of macro and micronutrients, with the support of supplements and adequate hydration, can significantly improve athletic performance and plays a key role in achieving better results. An optimally designed nutritional program, with realistic and achievable goals, which complements a well-planned training program, is the basis for success in sports. Only when nutritional requirements are met, deficits can be prevented and performance in sport pushed to the limit.

  14. Understanding Activation Patterns in Shared Circuits: Toward a Value Driven Model

    Directory of Open Access Journals (Sweden)

    Lisa Aziz-Zadeh

    2018-05-01

    Full Text Available Over the past decade many studies indicate that we utilize our own motor system to understand the actions of other people. This mirror neuron system (MNS has been proposed to be involved in social cognition and motor learning. However, conflicting findings regarding the underlying mechanisms that drive these shared circuits make it difficult to decipher a common model of their function. Here we propose adapting a “value-driven” model to explain discrepancies in the human mirror system literature and to incorporate this model with existing models. We will use this model to explain discrepant activation patterns in multiple shared circuits in the human data, such that a unified model may explain reported activation patterns from previous studies as a function of value.

  15. Sports activity and the use of cigarettes and snus among young males in Finland in 1999-2010.

    Science.gov (United States)

    Mattila, Ville M; Raisamo, Susanna; Pihlajamäki, Harri; Mäntysaari, Matti; Rimpelä, Arja

    2012-03-22

    Studies of the relationship between sports activity and smoking among adolescents and young adults report contradictory results. We examined the association between sports activity (intensity and type of sport) and the current use of snus (Swedish snuff), cigarette smoking, and the combined use of cigarettes and snus (dual use) among young males in Finland. Data were collected from 16,746 male conscripts who completed a survey during the first days of their conscription during the years 1999-2010 (median age 19 years, response rate 95%). Main outcome measures were self-reported daily/occasional use of snus, cigarette smoking, and dual use. The association between sports activity, type of sport, and several sociodemographic background variables was assessed using logistic regression analysis. Over the study period (1999-2010), the prevalence of cigarette smoking decreased from 42% to 34%, while snus use increased from 5% to 12%, and dual use increased from 7% to 13% (p sports activity (defined as high-intensity sports activity) was positively associated with use of snus (odds ratio [OR] 10.2; 95% confidence interval [CI]: 7.8-13.5) and negatively with cigarette smoking (OR 0.2; 95% CI: 0.1-0.3). When stratified by type of sport in multivariate models, ice hockey was most strongly associated with snus use (OR 1.6; 95% CI: 1.4-1.9) and dual use (OR 2.0; 95% CI 1.8-2.3) compared with those not playing ice-hockey, followed by other team sports for snus use (OR 1.5; 95% CI: 1.3-1.8) and dual use (OR 1.8; 95% CI: 1.6-2.0) compared with those not participating in other team-sports. Our results show a clear association between snus use and intensity and type of training. Team sports were associated with increased use of snus and dual use compared with no participation in team sports. These findings should be acknowledged when planning and implementing preventive strategies.

  16. Epidemiology of non-submersion injuries in aquatic sporting and recreational activities.

    Science.gov (United States)

    Chalmers, David; Morrison, Luke

    2003-01-01

    Although the issues of drowning and near-drowning in aquatic sporting and recreational activities receive considerable attention in the epidemiological literature, there is not a recognised literature on non-submersion injuries occurring in these activities. This review draws together the epidemiological literature on non-submersion injuries and describes the incidence, nature and causes of these injuries, common risk factors, and strategies for prevention. Activities covered by the review include swimming, diving, boating, surf sports, fishing, water polo and water sliding. For most activities there is a dearth of good quality descriptive studies, with most involving cases-series designs and few providing estimates of incidence. Inconsistencies in inclusion criteria and the reporting of incidence rates makes comparisons within and between activities difficult. Incidence rates were identified for most activities and in general the incidence of injury was low, especially for more serious injury. However, some activities were associated with severely disabling injury, such as spinal cord injury (diving) and amputation (from propeller strikes in water skiing and swimming). Only three studies reporting the significance of postulated risk factors were identified. Lack of knowledge about the water being entered and alcohol consumption are significant risk factors in recreational diving; increased blood alcohol concentrations were reported to increase the risk of death in boating; and obesity and tandem riding were reported to increase the risk of injury on public water slides. Few evaluations of preventive measures were identified. Two studies reported reductions in the incidence of water slide injuries following the introduction of design changes and supervision, but neither had a non-intervention comparison group. Improvements in swimming and diving skills were reported in three studies, but these were not designed to measure changes in the risk of injury.This review

  17. Sport-based physical activity intervention on body weight in children and adolescents: a meta-analysis.

    Science.gov (United States)

    Kim, Kyungun; Ok, Gina; Jeon, Soeun; Kang, Minsoo; Lee, Sukho

    2017-02-01

    Controversial results reported in past research pertaining to the effectiveness of sport-based physical activity interventions on weight loss. The purpose of this study was to assess the impact of sport-based physical activity intervention on body weight in children and adolescents using a meta-analysis. Academic Search Complete, Education Source, ERIC, Medline, ProQuest, PsycINFO and SportDiscus databases were searched from January 2000 to April 2015. Eighteen studies met following inclusion criteria: sport-based intervention studies; subjects aged 6-18 years; reported body weight; published in peer-reviewed journals written in English. The mean intervention duration was 17.72 weeks. The overall effect size (ES) was 0.52 (Cohen's d (ES) = 0.52, 95% CI = 0.08, 0.95, P = 0.021), using a random effects model. Moderator analyses results showed that the Q statistic for the sport type (individual sport or team sport, Qbetween (Q b ) = 14.52, df = 1, P = 0.001) and diet control (Qbetween (Q b ) = 8.85, df = 1, P = 0.001), explained the heterogeneity of ESs. Our study showed that there was a moderate overall effect of sport-based physical activity intervention on body weight reduction. The team sport type (ES = 1.05, 95% CI = 0.44, 1.66) and diet control group (ES = 0.84, 95% CI = 0.26, 1.41) appeared to be more effective in reducing body weight.

  18. Extracurricular Sport Activities and their Importance in Children Socialization and Integration Process

    Directory of Open Access Journals (Sweden)

    Pomohaci Marcel

    2017-06-01

    Full Text Available The importance of sports activities nowadays is showing their effects on the future development of children, extracurricular activities come in the help of the physical education teacher with benefits on children's development. Our study focuses on revealing the importance of extracurricular sports activities in the process of children's socialization and integration. The research sample was formed from two different groups, the experimental group was formed by 25 students (age 10 ± 2.1 years, 13 boys, and 12 girls, that practiced 2 hours a week physical education and other 2 hours a week extracurricular activities like basketball and volleyball; and the sample group formed by 24 students (age 10 ± 1.8 years, 12 boys and 12 girls, that practiced 2 hours a week classic physical education. The results showed us that extracurricular activities have a good impact on children's socialization and integration, the experimental group improved their coefficient of group cohesion from 0.04 at the initial testing to 0.06 at the final test, and the index of cohesion from 0.02 at the initial test to 0.05 at the final testing. Significant differences were found within the experimental group both in the initial and in the final tests (p < 0.05, also significant differences were discovered between the experimental and the sample group in the final measurement (p < 0.05. Conclusions of this research presented that the experimental group had good improvements of cohesion and social integration of children, showing that extracurricular sport activities have a positive impact on improving socialization, developing cohesion and integrate the marginalized children in the social group.

  19. Metabolic activation of amygdala, lateral septum and accumbens circuits during food anticipatory behavior.

    Science.gov (United States)

    Olivo, Diana; Caba, Mario; Gonzalez-Lima, Francisco; Rodríguez-Landa, Juan F; Corona-Morales, Aleph A

    2017-01-01

    When food is restricted to a brief fixed period every day, animals show an increase in temperature, corticosterone concentration and locomotor activity for 2-3h before feeding time, termed food anticipatory activity. Mechanisms and neuroanatomical circuits responsible for food anticipatory activity remain unclear, and may involve both oscillators and networks related to temporal conditioning. Rabbit pups are nursed once-a-day so they represent a natural model of circadian food anticipatory activity. Food anticipatory behavior in pups may be associated with neural circuits that temporally anticipate feeding, while the nursing event may produce consummatory effects. Therefore, we used New Zealand white rabbit pups entrained to circadian feeding to investigate the hypothesis that structures related to reward expectation and conditioned emotional responses would show a metabolic rhythm anticipatory of the nursing event, different from that shown by structures related to reward delivery. Quantitative cytochrome oxidase histochemistry was used to measure regional brain metabolic activity at eight different times during the day. We found that neural metabolism peaked before nursing, during food anticipatory behavior, in nuclei of the extended amygdala (basolateral, medial and central nuclei, bed nucleus of the stria terminalis), lateral septum and accumbens core. After pups were fed, however, maximal metabolic activity was expressed in the accumbens shell, caudate, putamen and cortical amygdala. Neural and behavioral activation persisted when animals were fasted by two cycles, at the time of expected nursing. These findings suggest that metabolic activation of amygdala-septal-accumbens circuits involved in temporal conditioning may contribute to food anticipatory activity. Copyright © 2016 Elsevier B.V. All rights reserved.

  20. Organized Sport Participation Is Associated with Higher Levels of Overall Health-Related Physical Activity in Children (CHAMPS Study-DK)

    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...

  1. Activity transport models for PWR primary circuits; PWR-ydinvoimalaitoksen primaeaeripiirin aktiivisuuskulkeutumismallit

    Energy Technology Data Exchange (ETDEWEB)

    Tanner, V; Rosenberg, R [VTT Chemical Technology, Otaniemi (Finland)

    1995-03-01

    The corrosion products activated in the primary circuit form a major source of occupational radiation dose in the PWR reactors. Transport of corrosion activity is a complex process including chemistry, reactor physics, thermodynamics and hydrodynamics. All the mechanisms involved are not known and there is no comprehensive theory for the process, so experimental test loops and plant data are very important in research efforts. Several activity transport modelling attempts have been made to improve the water chemistry control and to minimise corrosion in PWR`s. In this research report some of these models are reviewed with special emphasis on models designed for Soviet VVER type reactors. (51 refs., 16 figs., 4 tabs.).

  2. The role of sports clubs in helping older people to stay active and prevent frailty: a longitudinal mediation analysis.

    Science.gov (United States)

    Watts, Paul; Webb, Elizabeth; Netuveli, Gopalakrishnan

    2017-07-14

    Frailty is a common syndrome in older adults characterised by increased vulnerability to adverse health outcomes as a result of decline in functional and physiological measures. Frailty predicts a range of poor health and social outcomes and is associated with increased risk of hospital admission. The health benefits of sport and physical activity and the health risks of inactivity are well known. However, less is known about the role of sports clubs and physical activity in preventing and managing frailty in older adults. The objective of this study is to examine the role of membership of sports clubs in promoting physical activity and reducing levels of frailty in older adults. We used data from waves 1 to 7 of the English Longitudinal Study of Ageing (ELSA). Survey items on physical activity were combined to produce a measure of moderate or vigorous physical activity for each wave. Frailty was measured using an index of accumulated deficits. A total of sixty deficits, including symptoms, disabilities and diseases were recorded through self-report and tests. Direct and indirect relationships between sports club membership, levels of physical activity and frailty were examined using a cross-lagged panel model. We found evidence for an indirect relationship between sports club membership and frailty, mediated by physical activity. This finding was observed when examining time-specific indirect pathways and the total of all indirect pathways across seven waves of survey data (Est = -0.097 [95% CI = -0.124,-0.070], p = sports clubs may be useful in preventing and managing frailty in older adults, both directly and indirectly through increased physical activity levels. Sports clubs accessible to older people may improve health in this demographic by increasing activity levels and reducing frailty and associated comorbidities. There is a need for investment in these organisations to provide opportunities for older people to achieve the levels of physical activity

  3. Adolescents' physical activity in physical education, school recess, and extra-curricular sport by motivational profiles.

    Science.gov (United States)

    Mayorga-Vega, Daniel; Viciana, Jesús

    2014-06-01

    The main purpose of this study was to evaluate the differences in adolescents´ objective physical activity levels and perceived effort in physical education, school recess, and extra-curricular organized sport by motivational profiles in physical education. A sample of 102 students 11-16 yr. old completed a self-report questionnaire assessing self-determined motivation toward physical education. Subsequently, students' objective physical activity levels (steps/min., METs, and moderate-to-vigorous physical activity) and perceived effort were evaluated for each situation. Cluster analysis identified a two-cluster structure: "Moderate motivation toward physical education profile" and "High motivation toward physical education profile." Adolescents in the second cluster had higher physical activity and perceived effort values than adolescents in the first cluster, except for METs and moderate-to-vigorous physical activity in extra-curricular sport. These results support the importance of physical education teachers who should promote self-determined motivation toward physical education so that students can reach the recommended physical activity levels.

  4. Sports in pediatric oncology: the role(s) of physical activity for children with cancer.

    Science.gov (United States)

    Götte, Miriam; Taraks, Silke; Boos, Joachim

    2014-03-01

    Malignant disease and anticancer therapy dramatically affect daily life activities and participation in grassroots and high-performance sports. Specifically in childhood and adolescence such activities are relevant factors of individual development and social life. This review focuses on the inherent reduction of normal physical activity in pediatric oncology because this cutback additionally contributes to the level of burden of malignancies. Maintaining normality requires detailed analyses of disease-related and therapy-related restrictions and their justification. Relevant efforts should be stepped up to maintain physical activity levels during pediatric cancer therapy. Another aspect addresses direct therapeutic implications. Feasibility studies, nonrandomized as well as randomized investigations addressed therapeutic effects in acute hospital care, in bone marrow transplant settings, and in outpatient therapy. The overall summary shows positive effects on clinical and psychosocial outcome. Even if the basis of the data for children is still limited, there will be no doubt about a general impact of physical activity on acute side effects as well as late effects. In the areas of tension between context-related restrictions, the right to maintain normality wherever possible and the positive therapeutic and psychosocial perspectives of sports, strong efforts are needed to support physical activity wherever indicated, clarify contraindications, and overcome structural limitations.

  5. Developing Students’ Technological Thinking by Means of Sports and Physical Education Activity

    Directory of Open Access Journals (Sweden)

    S. A. Novoselov

    2012-01-01

    Full Text Available The new context competence system of vocational training requires the system-creating interdisciplinary link. However, the lack of such interrelation between the humanities, social, economic disciplines and professional subjects badly affects the training results. The quality of training process can be improved by introducing the interdisciplinary principle. In this regard, the authors carried out the research aimed at solving the above problem by developing the method of interdisciplinary correlation and analyzing its system-creating basis.The paper substantiates the possibility of developing students’ technological thinking by means of sports and physical education activity corresponding to a particular professional one according to the universal morphology classification. It is demonstrated that technological thinking can be developed in the context of sports games under several organizational and methodical conditions. One of the proposed conditions concerns the project of a sport game improvement. The given method can find its application in designing the training process related to physical education of students of different profiles.  

  6. SKIING ON GLACIERS – A MODERN TREND OF ACTIVE HOLIDAYS AND EXTREME SPORTS CHALLENGES

    Directory of Open Access Journals (Sweden)

    Vukan Vujović

    2012-09-01

    Full Text Available Skiing on the glaciers has emerged as one more of the prominent and interesting representatives of unusual and relatively young extreme discipline. His appearance has reflected at the same time on the direction of the tourist group, which are rightfully called the adrenaline lovers or adventurers (in the broadest sense. All this has contributed to expanding the current tourism and sports exploited space, stirring the limits of human movement high, ie. deep in the untouched area of permafrost. In the paper are noted the facts of the genesis of the glacier, the conditions that prevailing at this height (ie. improvised tracks, and of numerous effects that the presence of visitors leave on this particularly sensitive and specific eco-system. In the framework of the paper was conducted a research about the possible interest and awareness of domestic tourists (in the area of Novi Sad for this kind of active rest. The idea was to present data which suggest to a certain conclusions on these issues, with the aim of determining the relationship of citizens of Serbia to the current trends in the field of sports and recreational tourism (having in mind the objective possibility of taking an participate in the category of special travel arrangements, material restrictions and difficulties in implementation of the same by the tour. A general task of the paper was to draw the attention of respondents to the chosen topic indirectly, and that among the educated and professionally qualified persons from the world of sports and tourism, additionally promote the new direction of global interest in the domain of extreme and adventure sports. Viewed from another aspect, it is about desire to foster thinking on the possibilities and purposes of further commercialization of worldwide trend in our area (at a higher level than the existing one.

  7. Sport for Older Persons.

    Science.gov (United States)

    Council of Europe, Strasbourg (France).

    The following papers were prepared for a seminar on sport for older people: (1) "Gerontological Aspects of Physical Exercise" (Eino Heikkinen); (2) "Sporting Activities in the Individual Life from the View of Older Persons" (Henning Allmer); (3) "Reasons Why Decision-Makers Should Urge Old People to Practise Physical and Sporting Activities"…

  8. Differences in behavior, psychological factors, and environmental factors associated with participation in school sports and other activities in adolescence.

    Science.gov (United States)

    Harrison, Patricia A; Narayan, Gopalakrishnan

    2003-03-01

    This study examined whether participation in school team sports, exclusively or in combination with other extracurricular activities, is associated with higher levels of psychosocial functioning and healthy behavior than participation in other extracurricular activities alone or nonparticipation. The study sample includes 50,168 ninth grade public school students who completed an anonymous, voluntary statewide survey in 2001. Students were classified into four groups based on their participation in sports and other activities (such as clubs, volunteer work, band, choir, or music lessons): neither, both, other activities only, and sports only. Odds ratios for the group involved in both types of activities were significantly higher than those for all the other groups for all healthy behaviors and measures of connectedness, and significantly lower for all but one of the unhealthy behaviors. Students involved in sports, alone or in combination with other activities, had significantly higher odds than the other two groups for exercise, milk consumption, and healthy self-image, and significantly lower odds for emotional distress, suicidal behavior, family substance abuse, and physical and sexual abuse victimization. Students involved in other activities, alone or in combination with sports, had significantly higher odds than the other two groups for doing homework and significantly lower odds for alcohol consumption, marijuana use, and vandalism. The finding that abuse victims appeared to avoid sports but not other group activities raises concern and merits further research. Considering the potential benefits of participation in sports and other activities, more research is needed to identify and overcome barriers or deterrents, particularly for youth from low-income families.

  9. Toolbox for the design of LiNbO3-based passive and active integrated quantum circuits

    Science.gov (United States)

    Sharapova, P. R.; Luo, K. H.; Herrmann, H.; Reichelt, M.; Meier, T.; Silberhorn, C.

    2017-12-01

    We present and discuss perspectives of current developments on advanced quantum optical circuits monolithically integrated in the lithium niobate platform. A set of basic components comprising photon pair sources based on parametric down conversion (PDC), passive routing elements and active electro-optically controllable switches and polarisation converters are building blocks of a toolbox which is the basis for a broad range of diverse quantum circuits. We review the state-of-the-art of these components and provide models that properly describe their performance in quantum circuits. As an example for applications of these models we discuss design issues for a circuit providing on-chip two-photon interference. The circuit comprises a PDC section for photon pair generation followed by an actively controllable modified mach-Zehnder structure for observing Hong-Ou-Mandel interference. The performance of such a chip is simulated theoretically by taking even imperfections of the properties of the individual components into account.

  10. NASA SPoRT Modeling and Data Assimilation Research and Transition Activities Using WRF, LIS and GSI

    Science.gov (United States)

    Case, Jonathan L.; Blankenship, Clay B.; Zavodsky, Bradley T.; Srikishen, Jayanthi; Berndt, Emily B.

    2014-01-01

    weather research and forecasting ===== The NASA Short-term Prediction Research and Transition (SPoRT) program has numerous modeling and data assimilation (DA) activities in which the WRF model is a key component. SPoRT generates realtime, research satellite products from the MODIS and VIIRS instruments, making the data available to NOAA/NWS partners running the WRF/EMS, including: (1) 2-km northwestern-hemispheric SST composite, (2) daily, MODIS green vegetation fraction (GVF) over CONUS, and (3) NASA Land Information System (LIS) runs of the Noah LSM over the southeastern CONUS. Each of these datasets have been utilized by specific SPoRT partners in local EMS model runs, with select offices evaluating the impacts using a set of automated scripts developed by SPoRT that manage data acquisition and run the NCAR Model Evaluation Tools verification package. SPoRT is engaged in DA research with the Gridpoint Statistical Interpolation (GSI) and Ensemble Kalman Filter in LIS for soil moisture DA. Ongoing DA projects using GSI include comparing the impacts of assimilating Atmospheric Infrared Sounder (AIRS) radiances versus retrieved profiles, and an analysis of extra-tropical cyclones with intense non-convective winds. As part of its Early Adopter activities for the NASA Soil Moisture Active Passive (SMAP) mission, SPoRT is conducting bias correction and soil moisture DA within LIS to improve simulations using the NASA Unified-WRF (NU-WRF) for both the European Space Agency's Soil Moisture Ocean Salinity and upcoming SMAP mission data. SPoRT has also incorporated real-time global GVF data into LIS and WRF from the VIIRS product being developed by NOAA/NESDIS. This poster will highlight the research and transition activities SPoRT conducts using WRF, NU-WRF, EMS, LIS, and GSI.

  11. Can the London 2012 Olympics 'inspire a generation' to do more physical or sporting activities? An overview of systematic reviews.

    Science.gov (United States)

    Mahtani, Kamal Ram; Protheroe, Joanne; Slight, Sarah Patricia; Demarzo, Marcelo Marcos Piva; Blakeman, Thomas; Barton, Christopher A; Brijnath, Bianca; Roberts, Nia

    2013-01-07

    To examine if there is an increased participation in physical or sporting activities following an Olympic or Paralympic games. Overview of systematic reviews. We searched the Medline, Embase, Cochrane, DARE, SportDISCUS and Web of Knowledge databases. In addition, we searched for 'grey literature' in Google, Google scholar and on the International Olympic Committee websites. We restricted our search to those reviews published in English. We used the AMSTAR tool to assess the methodological quality of those systematic reviews included. The primary outcome was evidence for an increased participation in physical or sporting activities. Secondary outcomes included public perceptions of sport during and after an Olympic games, barriers to increased sports participation and any other non-sporting health benefits. Our systematic search revealed 844 citations, of which only two matched our inclusion criteria. The quality of these two reviews was assessed by three independent reviewers as 'good' using the AMSTAR tool for quality appraisal. Both reviews reported little evidence of an increased uptake of sporting activity following an Olympic Games event. Other effects on health, for example, changes in hospital admissions, suicide rates and drug use, were cited although there was insufficient evidence to see an overall effect. There is a paucity of evidence to support the notion that hosting an Olympic games leads to an increased participation in physical or sporting activities for host countries. We also found little evidence to suggest other health benefits. We conclude that the true success of these and future games should be evaluated by high-quality, evidence-based studies that have been commissioned before, during and following the completion of the event. Only then can the true success and legacy of the games be established.

  12. A Voltage Doubler Circuit to Extend the Soft-switching Range of Dual Active Bridge Converters

    DEFF Research Database (Denmark)

    Qin, Zian; Shen, Yanfeng; Wang, Huai

    2017-01-01

    A voltage doubler circuit is realized to extend the soft-switching range of Dual Active Bridge (DAB) converters. No extra hardware is added to the DAB to form this circuit, since it is composed of the dc blocking capacitor and the low side full bridge converter, which already exist in DAB....... With the voltage doubler, the DAB converter can achieve soft switching and high efficiency when the low side dc voltage is close to 2 pu (1 pu is the high side dc voltage divided by the transformer turn ratio), which can be realized only when the low side dc voltage is close to 1 pu by using the conventional phase...... shift modulation in DAB. Thus the soft switching range is extended. The soft switching boundary conditions are derived. A map to show the soft switching or hard switching in the full load and voltage range is obtained. The feasibility and effectiveness of the proposed method is finally verified...

  13. Childhood Sports Participation and Adolescent Sport Profile.

    Science.gov (United States)

    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.

  14. Multichannel brain recordings in behaving Drosophila reveal oscillatory activity and local coherence in response to sensory stimulation and circuit activation

    Science.gov (United States)

    Paulk, Angelique C.; Zhou, Yanqiong; Stratton, Peter; Liu, Li

    2013-01-01

    Neural networks in vertebrates exhibit endogenous oscillations that have been associated with functions ranging from sensory processing to locomotion. It remains unclear whether oscillations may play a similar role in the insect brain. We describe a novel “whole brain” readout for Drosophila melanogaster using a simple multichannel recording preparation to study electrical activity across the brain of flies exposed to different sensory stimuli. We recorded local field potential (LFP) activity from >2,000 registered recording sites across the fly brain in >200 wild-type and transgenic animals to uncover specific LFP frequency bands that correlate with: 1) brain region; 2) sensory modality (olfactory, visual, or mechanosensory); and 3) activity in specific neural circuits. We found endogenous and stimulus-specific oscillations throughout the fly brain. Central (higher-order) brain regions exhibited sensory modality-specific increases in power within narrow frequency bands. Conversely, in sensory brain regions such as the optic or antennal lobes, LFP coherence, rather than power, best defined sensory responses across modalities. By transiently activating specific circuits via expression of TrpA1, we found that several circuits in the fly brain modulate LFP power and coherence across brain regions and frequency domains. However, activation of a neuromodulatory octopaminergic circuit specifically increased neuronal coherence in the optic lobes during visual stimulation while decreasing coherence in central brain regions. Our multichannel recording and brain registration approach provides an effective way to track activity simultaneously across the fly brain in vivo, allowing investigation of functional roles for oscillations in processing sensory stimuli and modulating behavior. PMID:23864378

  15. Multichannel brain recordings in behaving Drosophila reveal oscillatory activity and local coherence in response to sensory stimulation and circuit activation.

    Science.gov (United States)

    Paulk, Angelique C; Zhou, Yanqiong; Stratton, Peter; Liu, Li; van Swinderen, Bruno

    2013-10-01

    Neural networks in vertebrates exhibit endogenous oscillations that have been associated with functions ranging from sensory processing to locomotion. It remains unclear whether oscillations may play a similar role in the insect brain. We describe a novel "whole brain" readout for Drosophila melanogaster using a simple multichannel recording preparation to study electrical activity across the brain of flies exposed to different sensory stimuli. We recorded local field potential (LFP) activity from >2,000 registered recording sites across the fly brain in >200 wild-type and transgenic animals to uncover specific LFP frequency bands that correlate with: 1) brain region; 2) sensory modality (olfactory, visual, or mechanosensory); and 3) activity in specific neural circuits. We found endogenous and stimulus-specific oscillations throughout the fly brain. Central (higher-order) brain regions exhibited sensory modality-specific increases in power within narrow frequency bands. Conversely, in sensory brain regions such as the optic or antennal lobes, LFP coherence, rather than power, best defined sensory responses across modalities. By transiently activating specific circuits via expression of TrpA1, we found that several circuits in the fly brain modulate LFP power and coherence across brain regions and frequency domains. However, activation of a neuromodulatory octopaminergic circuit specifically increased neuronal coherence in the optic lobes during visual stimulation while decreasing coherence in central brain regions. Our multichannel recording and brain registration approach provides an effective way to track activity simultaneously across the fly brain in vivo, allowing investigation of functional roles for oscillations in processing sensory stimuli and modulating behavior.

  16. MANAGEMENT PARTICULARITIES IN SPORTS

    Directory of Open Access Journals (Sweden)

    FLORIN NEFERU

    2017-02-01

    Full Text Available Management applied in sport contributes to achieving full functionality of sports structures, the large masses of people, a plurality of means and skills, objectives and intentions. Through the efforts of management in sport individuals or groups of people are coordinated towards achieving a common goal, complicated and difficult process due to concerns divergent which always, through his, they are converted into cutting issues ensuring mobility objectives. Sports management helps to master and control both situations and complex systems ensuring permanent and continuous management of a multitude of sporting activities generating efficiency. Particularities of management in sport resides in that it applies to all forms of sports, all sports disciplines, which provides an organized leading to superior results in sporting competitions.

  17. [Medicine in sports or sport medicine?] ].

    Science.gov (United States)

    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.

  18. Sporting Activity Is Reduced 11 Years After First-Generation Autologous Chondrocyte Implantation in the Knee Joint.

    Science.gov (United States)

    Erdle, Benjamin; Herrmann, Simon; Porichis, Stella; Uhl, Markus; Ghanem, Nadir; Schmal, Hagen; Suedkamp, Norbert; Niemeyer, Philipp; Salzmann, Gian M

    2017-10-01

    Little is known about long-term sporting activity after periosteal autologous chondrocyte implantation (ACI-P) and its correlation to clinical, morphological, and ultrastructural cartilage characteristics on magnetic resonance imaging (MRI). To evaluate long-term sporting activity after ACI-P and to correlate with clinical and MRI findings. Case series; Level of evidence, 4. Patients who underwent ACI-P for isolated cartilage defects of the knee joint between 1997 and 2001 were analyzed for sporting ability for 3 different time points: lifetime until the onset of pain, the year before ACI-P, and 11 years (range, 9.0-13.4 years) postoperatively. Sporting activity was assessed and patients' level of activity scaled using standardized questionnaires. MRI scans of the affected knee joint at follow-up were analyzed using the MOCART (magnetic resonance observation of cartilage repair tissue) score and T2 mapping. Seventy of 86 patients (81% follow-up rate) consisting of 25 female and 45 male patients, with a mean age of 33.3 ± 10.2 years at the time of surgery, mean defect size of 6.5 ± 4.0 cm 2 , and 1.17 treated defects per patient, agreed to participate in the study at a mean 10.9 ± 1.1 years after ACI-P. Fifty-nine patients (69% of total; 84% of follow-up) agreed to MRI, allowing the complete evaluation of 71 transplant sites. Before the onset of symptoms (lifetime), 95.7% of patients played a mean 6.0 sporting activities at a competitive level. In the year before ACI-P, 81.4% of patients played a mean 3.4 sporting activities in 2.4 sessions during 5.4 hours per week at a recreational level. At follow-up, 82.9% of the patients played a mean 3.0 sporting activities in 1.8 sessions during 3.0 hours per week at a recreational level. In contrast to objective factors, 65.6% of the patients felt that their subjective sporting ability had improved or strongly improved after ACI-P, whereas 12.9% felt that their situation had declined or strongly declined, and 21.4% stated

  19. Does playing a sports active video game improve young children's ball skill competence?

    Science.gov (United States)

    Johnson, Tara M; Ridgers, Nicola D; Hulteen, Ryan M; Mellecker, Robin R; Barnett, Lisa M

    2016-05-01

    Actual and perceived object control (commonly ball) skill proficiency is associated with higher physical activity in children and adolescents. Active video games (AVGs) encourage whole body movement to control/play the electronic gaming system and therefore provide an opportunity for screen time to become more active. The purpose of this study was to determine whether playing sports AVGs has a positive influence on young children's actual and perceived object control skills. Two group pre/post experimental design study. Thirty-six children aged 6-10 years old from one school were randomly allocated to a control or intervention condition. The Test of Gross Motor Development-3 assessed object control skill. The Pictorial Scale of Perceived Competence for Young Children assessed perceived object control skill. The intervention consisted of 6×50min lunchtime AVG sessions on the Xbox Kinect. Two to three sport games were chosen for participants to play each session. General linear models with either perceived object control or actual object control skill as the outcome variables were conducted. Each base model adjusted for intervention status and pre-score of the respective outcome variable. Additional models adjusted for potential confounding variables (sex of child and game at home). No significant differences between the control and intervention groups were observed for both outcomes. This study found that playing the Xbox Kinect does not significantly influence children's perceived or actual object control skills, suggesting that the utility of the Xbox Kinect for developing perceived and actual object control skill competence is questionable. Copyright © 2015 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.

  20. SPORT-RECREATIVE ACTIVITIES 5-6 YEARS OLD CHILDREN IN KINDERGARDEN ’’CVRČAK’’ IN NIŠ

    Directory of Open Access Journals (Sweden)

    Mirjana Petrović

    2011-09-01

    Full Text Available It is well known that body activities are needed in child such as food and drink. Nowadays way of life causes reduced movement in whole population, such as in preeschool children. Reducing movement in preeschool children can result many postural disturbances and body deformities. In that case it was made systematic medical chackup in children 5-6 years old from ’’Cvrčak’’- Niš kindergarden on food deformities during last seven years (2004-2010. Received results showed desastrous level on food arch, reduced function of food muscules. The idea was that reason for that was childs` reduced body activities, from 2008. year it was made and start to realize the project „komunication and culture in sport“, in regard to grow up sport culture level in children, parents and teachers. As all of us is born having some predispozitions, it was given chance to sport clubs to present to children, teachers and parents all of sport-recreative bases. In cooperation with physical education expert service Office and coatches from sport clubs in Niš, it was made the sport-recreative Project. In one cyclus during one year children are included in next sports: rhythmic gymnastics, judo, tennis, basketball, vollyball, foodball, athledics, skating, skiing. The project gave wonderfull results: a great number of children joined sport clubs, more sport-recreative activities in children, growing right mind about body exercises needs, such as better statistic results after childrens` systematic medical chackup in 2009. and 2010. year. Mentioned Project is lasted till now.

  1. The influence of sport club participation on physical activity, fitness and body fat during childhood and adolescence: The LOOK Longitudinal Study.

    Science.gov (United States)

    Telford, Rohan M; Telford, Richard D; Cochrane, Thomas; Cunningham, Ross B; Olive, Lisa S; Davey, Rachel

    2016-05-01

    To investigate the longitudinal effect of sport participation in physical activity, fitness and body fat changes during childhood and adolescence. Longitudinal study (134 boys, 155 girls) of Australian youth aged 8-16 years. Physical activity was assessed by pedometers and accelerometers, fitness by the 20m shuttle-run, body fat by DEXA and club sport participation by questionnaire. Linear mixed models were used to determine the effects of sport participation and gender differences. Sports club participants were more physically active at all age groups than non-participants; boys took an extra 1800 steps (psports participants (boys 27% and girls 20% higher, both psport participant girls had 2.9% less body fat (psports participants but their greater PA diminished during adolescence, this being more evident among girls. Only 20% of sports club participants met the recommended daily average of 60min MVPA. Sport participants were more active, fitter and had less body fat (girls only) than non-sports participants. However, the associated benefits of sport with PA diminished during adolescence and the majority of sports participants did not meet recommended levels of PA. Strategies aiming to maximise the benefits of sports participation may be enhanced by providing special attention to the early adolescent period particularly among girls. Copyright © 2015 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.

  2. Reasons for participation and satisfaction in physical activity, physical exercises, and sports

    Directory of Open Access Journals (Sweden)

    Elmer Garita Azofeifa

    2006-07-01

    Full Text Available Motivation in physical activity constitutes a multidimensional psychological characteristic that is influenced by the person’s internal aspects (preferences, desires, fears, etc. and his/her experiences in the external environment (social acceptance, friends, skills, etc..  In a period in which physical activity is globally increasing among people of all ages, it is important for physical educators, sports trainers, or physical instructors to know the main reasons for their trainees to exercise with the purpose of preparing ideal workout plans that would help them continue exercising.  These plans should encourage subjects to enjoy and be satisfied with their participation, therefore, extending their active life cycle and avoiding quitting, which are closely related to a sedentary lifestyle and the risk of having chronic and degenerative diseases.  Consequently, children prefer to exercise to have fun and make friends, adolescents to compete and make friends, college students for adventure and fun, adults to have regular physical activity, and senior citizens to obtain health benefits.  Women are motivated by their appearance and social reasons, while men do it for competition and status.  Subjects who practice sports are motivated by competition, while those who exercise do it for body image.  The more physical activity is practiced the more value is given to competition.  Finally, having fun, competing, learning skills, and being in good physical condition are the most relevant reasons for American, European, and Asian subjects to participate in physical activity.  This research was conducted with the purpose of letting professionals of human movement sciences know the variables that determine the reasons for subjects of distinctive ages, gender, culture, and level of activity to participate in the different types of physical activities.

  3. Leisure-time Physical Activity and Sedentary Behaviour in Older People: The Influence of Sport Involvement on Behaviour Patterns in Later Life.

    Science.gov (United States)

    Gayman, Amy M; Fraser-Thomas, Jessica; Spinney, Jamie E L; Stone, Rachael C; Baker, Joseph

    2017-01-01

    Given the dramatic demographic change underway in most industrialized nations, the health of older adults is a major concern, particularly given the prevalence of sedentary behaviours and physical inactivity among ageing populations. Researchers have suggested sport participation in later life promotes other health-related behaviours, however, these relationships are poorly understood. It is possible for individuals to be classified as sufficiently active and still spend most of their day involved in sedentary pursuits. Moreover, there is little information on older sport participants' use of time compared to leisurely active or inactive peers and whether type of physical activity involvement is associated with differences in older adults' behaviour patterns. With this in mind, data from 1,723 respondents (65 years and older) who completed the sport module of the 2010 Canadian General Social Survey-Time Use were used to investigate the influence of physical activity involvement (competitive sport vs. non-competitive sport vs. physically active leisure vs. inactivity) on time spent in leisure-time physical activity and sedentary behaviours. Results indicated that competitive sport participants spent less time engaging in sedentary behaviours compared to the physically active leisure or inactive respondents; however, sport participants (both competitive and non-competitive) also spent less time engaging in leisure-time physical activities than the physically active leisure group. Implications of these findings to assumptions related to the activity levels of older sport participants, suggestions for future research, and considerations for sport-related interventions aimed at enhancing health in older adulthood are discussed.

  4. A multi coding technique to reduce transition activity in VLSI circuits

    International Nuclear Information System (INIS)

    Vithyalakshmi, N.; Rajaram, M.

    2014-01-01

    Advances in VLSI technology have enabled the implementation of complex digital circuits in a single chip, reducing system size and power consumption. In deep submicron low power CMOS VLSI design, the main cause of energy dissipation is charging and discharging of internal node capacitances due to transition activity. Transition activity is one of the major factors that also affect the dynamic power dissipation. This paper proposes power reduction analyzed through algorithm and logic circuit levels. In algorithm level the key aspect of reducing power dissipation is by minimizing transition activity and is achieved by introducing a data coding technique. So a novel multi coding technique is introduced to improve the efficiency of transition activity up to 52.3% on the bus lines, which will automatically reduce the dynamic power dissipation. In addition, 1 bit full adders are introduced in the Hamming distance estimator block, which reduces the device count. This coding method is implemented using Verilog HDL. The overall performance is analyzed by using Modelsim and Xilinx Tools. In total 38.2% power saving capability is achieved compared to other existing methods. (semiconductor technology)

  5. Sports Supplements

    Science.gov (United States)

    ... Staying Safe Videos for Educators Search English Español Sports Supplements KidsHealth / For Teens / Sports Supplements What's in ... really work? And are they safe? What Are Sports Supplements? Sports supplements (also called ergogenic aids ) are ...

  6. An Active Learning Approach to Understanding Gender, Sexuality, and Sport Journalism

    Science.gov (United States)

    Chawansky, Megan

    2010-01-01

    Most of the students who are taking the author's sport sociology courses can easily identify the problematic ways in which women's athletic events and bodies are covered within the sports sections of newspapers, magazines, Web sites, and television shows. These students are less able to understand how the heterosexual male sporting experience…

  7. Attitudes of Students Studying in Coaching And Sport Management Department Towards Playing Games Involving Physical Activity

    Directory of Open Access Journals (Sweden)

    Hüseyin ÖZTÜRK

    2016-12-01

    Full Text Available This study has been prepared to determine attitudes of students studying in Coaching and Sport Management departments towards playing game including physcical activity. The sample of study consists of 388 students having sudied in Gaziantep University Coaching and Sport Management Department in 2014-2015 academic year.So as to determine the attitudes of students, the’’Playfulnessscale" was used. Statistical analysis of the data obtained in this study was made by using the SPSS 22.0 software packages. While evaluating the data for statistical analyzes, for frequency, percentage, mean, standard deviation, and comparison of two independent groups the t-test was used and for comparison of more than two independent groups ANOVA and LSD multiple comparison tests were used. According to results of study, It seems that statistically there is no significant difference between student’s genders,ages and their attitudes towards palying game including physical activity and according to their departments there is no significant difference among their attitudes but there is a significant difference between the fundimension and social cohesion dimension.

  8. Revitalisation Recess as Conflict Resolution and Participation in Physical and Sports Activities

    Directory of Open Access Journals (Sweden)

    Gema Castillo-Rodríguez

    2018-03-01

    Full Text Available This research paper aims to see to what extent a project of revitalization of playgrounds contributes to improving coexistence, conflict resolution, and the participation of boys and girls in sport and physical activities. The paper also aims to know the level of motivation and interest the project could have for the students. For this, after initial assessment, a project of revitalization of recreations was designed, and after a few days of training, it was implemented for a month in a primary school in Spain, with 179 students (98 boys and 81 girls from 1 to 6 grades; it was carried out in the school playground during a 30-minute recess period. The project consisted of two phases of training; the first one explained different games through training days; the second phase featured free recreation and independent work. The project opted for a mixed methodology of collecting information; this methodology included an information questionnaire and participant observation. The study concludes by highlighting the students’ high interest and motivation, the increasing participation, both boys and girls in physical and sports activities, and the reduction of conflicts between students of the center.

  9. Sale leisure activities of children and youth in out of school educational establishments of physical culture and sports destinations

    Directory of Open Access Journals (Sweden)

    N.V. Tikhonova

    2014-10-01

    Full Text Available Purpose : To determine the role of extracurricular educational establishments of physical culture sports direction in providing leisure activities for children and youth. Material : The results of the analysis of the scientific and methodological literature, statistical reports of the Ministry of Youth and Sports of Ukraine, authorities of Physical Culture and Sport, authorities the Department of Education and Science. Results : Based on the analysis of statistical reports determined satisfactory condition and leisure activities in non-school educational establishments physical culture sports direction. This is confirmed by an increase in the number of pupils and students dealing all kinds of physical culture health improvement work. Also, the decline in the number of pupils and students classified for health reasons for the special medical group. Conclusions : Our data showed that extracurricular educational institutions physical culture sports direction have a place in leisure activities. They play an important role in motor activity, substantial leisure and healthy lifestyles for children and young people of our country.

  10. fMRI and brain activation after sport concussion: a tale of two cases

    Directory of Open Access Journals (Sweden)

    Michael G Hutchison

    2014-04-01

    Full Text Available Sport-related concussions are now recognized as a major public health concern: The number of participants in sport and recreation is growing, possibly playing their games faster, and there is heightened public awareness of injuries to some high-profile athletes. However, many clinicians still rely on subjective symptom reports for the clinical determination of recovery. Relying on subjective symptom reports can be dangerous, as it has been shown that some concussed athletes may downplay their symptoms. The use of neuropsychological (NP testing tools has enabled clinicians to measure the effects and extent of impairment following concussion more precisely, providing more objective metrics for determining recovery after concussion. Nevertheless, there is a remaining concern that brain abnormalities may exist beyond the point at which individuals achieve recovery in self-reported symptoms and cognition measured by NP testing. Our understanding of brain recovery after concussion is important not only from a neuroscience perspective, but also from the perspective of clinical decision making for safe return-to-play (RTP. A number of advanced neuroimaging tools, including blood oxygen level dependent (BOLD functional magnetic resonance imaging (fMRI, have independently yielded early information on these abnormal brain functions. In the two cases presented in this article, we report contrasting brain activation patterns and recovery profiles using fMRI. Importantly, fMRI was conducted using adapted versions of the most sensitive computerized NP tests administered in current clinical practice to determine impairments and recovery after sport-related concussion. One of the cases is consistent with the concept of lagging brain recovery.

  11. Sport Progressions.

    Science.gov (United States)

    Clumpner, Roy A.

    This book, which is primarily for secondary physical education teachers, presents a sequential approach to teaching skills that are essential to eight sports. The activities and lead-up games included in the book put beginning students directly into game-like situations where they can practice skills. Each chapter begins with a background of the…

  12. Walking, biking or sport: how Spanish women attending breast cancer screening meet physical activity recommendations?

    Science.gov (United States)

    Peiró-Pérez, Rosana; Salas, Dolores; Vallés, Guillermo; Abad-Fernandez, Ma Soledad; Vidal, Carmen; Sanchez-Contador Escudero, Carmen; Ascunce-Elizaga, Nieves; Zubizarreta, Raquel; Pedraz, Carmen; Pérez-Gómez, Beatriz; Navarrete-Muñoz, Eva María; Vioque, Jesús; Pollán, Marina

    2015-10-01

    The aim is to analyse physical activity (PA), the fulfillment recommendation of at least 150 min of moderate PA, through walking/biking (W&B), sport, both types of PA and the factors associated with inactivity by Spanish women who attended breast cancer screening programmes. The DDM-Spain is a multicentre cross-sectional study involving 3584 women, aged 45-68, attending screening in seven Spanish cities. Data were collected using a questionnaire, including age, socio-demographic and lifestyle characteristics, family burden and PA. PA was converted into metabolic equivalent of task (METs), categorized as low ≤ 600 METs min per week (m/w), moderate 600-3000 METs m/w and high ≥ 3000 METs m/w. A multivariate logistic regression was performed to identify variables associated with inactivity for each type of PA. No women achieved a high level of PA through sport. 79.2% achieved a high or moderate level of PA by W&B. Lack of sport was associated with being overweight (odds ratio OR = 1.31; 95% confidence interval CI: 1.06 to 1.62), body mass index (BMI) ≥ 30 (OR = 1.85; 95% CI: 1.44 to 2.38), smoking (OR = 1.56; 95% CI: 1.22 to 2.00) and living with a disabled person (OR = 1.64; 95% CI: 1.0 to 2.81), whereas enough sport practice was associated with higher educational or socio-economic level (SEL). Regarding W&B, inactivity was associated with BMI ≥ 30 (OR = 1.91; 95% CI: 1.49 to 2.45) and living with someone >74 (OR = 1.96; 95% CI: 1.48 to 2.58). Inactivity for both types of exercise was associated with a BMI ≥ 30 (OR = 2.13; 95% CI: 1.63 to 2.8), smoking (OR = 1.41; 95% CI: 1.09 to 1.81) and living with someone >74 (OR = 1.69; 95% CI: 1.24 to 2.28). Family burden and BMI ≥ 30 are inversely associated with both types of PA. W&B is the most common type of PA regardless of educational and SEL. © The Author 2015. Published by Oxford University Press on behalf of the European Public Health Association. All rights reserved.

  13. At-Risk Boys' Social Self-Efficacy and Physical Activity Self-Efficacy in a Summer Sports Camp

    Science.gov (United States)

    Su, Xiaoxia; Xiang, Ping; McBride, Ron E.; Liu, Jiling; Thornton, Michael A.

    2016-01-01

    This study examined at-risk boys' social self-efficacy and physical activity self-efficacy within Bandura's self-efficacy framework. A total of 97 boys, aged between 10 and 13 years, attending a summer sports camp completed questionnaires assessing their social self-efficacy, physical activity self- efficacy, prosocial behaviors, and effort.…

  14. Physical and Sport Education as a Tool for Development of a Positive Attitude toward Health and Physical Activity in Adulthood

    Science.gov (United States)

    Bendíková, Elena; Dobay, Beáta

    2017-01-01

    The study explains the importance and the role of physical and sport education in development of a positive attitude toward physical activity and health in adulthood. The empirical study was aimed at finding the factor that contributed to the transfer of respondents' physical activity into their adulthood with regard to their health status. The…

  15. Negative Experiences in Physical Education and Sport: How Much Do They Affect Physical Activity Participation Later in Life?

    Science.gov (United States)

    Cardinal, Bradley J.; Yan, Zi; Cardinal, Marita K.

    2013-01-01

    People's feelings toward physical activity are often influenced by memories of their childhood experiences in physical education and sport. Unfortunately, many adults remember negative experiences, which may affect their desire to maintain a physically active lifestyle. A survey that asked 293 students about recollections from their childhood…

  16. Return to Sports and Physical Activity After Total and Unicondylar Knee Arthroplasty: A Systematic Review and Meta-Analysis.

    Science.gov (United States)

    Witjes, Suzanne; Gouttebarge, Vincent; Kuijer, P Paul F M; van Geenen, Rutger C I; Poolman, Rudolf W; Kerkhoffs, Gino M M J

    2016-02-01

    People today are living longer and want to remain active. While obesity is becoming an epidemic, the number of patients suffering from osteoarthritis (OA) is expected to grow exponentially in the coming decades. Patients with OA of the knee are progressively being restricted in their activities. Since a knee arthroplasty (KA) is a well accepted, cost-effective intervention to relieve pain, restore function and improve health-related quality of life, indications are expanding to younger and more active patients. However, evidence concerning return to sports (RTS) and physical activity (PA) after KA is sparse. Our aim was to systematically summarise the available literature concerning the extent to which patients can RTS and be physically active after total (TKA) and unicondylar knee arthroplasty (UKA), as well as the time it takes. PRISMA guidelines were followed and our study protocol was published online at PROSPERO under registration number CRD42014009370. Based on the keywords (and synonyms of) 'arthroplasty', 'sports' and 'recovery of function', the databases MEDLINE, Embase and SPORTDiscus up to January 5, 2015 were searched. Articles concerning TKA or UKA patients who recovered their sporting capacity, or intended to, were included and were rated by outcomes of our interest. Methodological quality was assessed using Quality in Prognosis Studies (QUIPS) and data extraction was performed using a standardised extraction form, both conducted by two independent investigators. Out of 1115 hits, 18 original studies were included. According to QUIPS, three studies had a low risk of bias. Overall RTS varied from 36 to 89% after TKA and from 75 to >100% after UKA. The meta-analysis revealed that participation in sports seems more likely after UKA than after TKA, with mean numbers of sports per patient postoperatively of 1.1-4.6 after UKA and 0.2-1.0 after TKA. PA level was higher after UKA than after TKA, but a trend towards lower-impact sports was shown after both TKA

  17. Reported Sports Participation, Race, Sex, Ethnicity, and Obesity in US Adolescents From NHANES Physical Activity (PAQ_D).

    Science.gov (United States)

    Turner, Robert W; Perrin, Eliana M; Coyne-Beasley, Tamera; Peterson, Camilla J; Skinner, Asheley C

    2015-01-01

    Objective. To understand the relationships between participation in different types of leisure time sport activity and adolescent obesity, and how those relationships might differ based on race, gender, and household income. Methods. Data consisted of 6667 students that took part in the 1999 to 2006 National Health and Nutrition Examination Survey. The authors used adjusted Wald tests to examine differences in the prevalence of obesity (body mass index >95th percentile for age and sex) by sport for boys and girls separately. Results. Among adolescent youth age 12 to 19 years, 16.6% of male leisure time sport participants and 15.3% of female sport participants were obese, compared with 23.6% for male nonathlete participant-in-other-activities and 17.0% obesity rate for female nonathlete/participant-in-other-activities. For both males and females, reported participation in leisure time sports decreased between middle school and high school, and this reduction was associated with higher body mass index.

  18. Marketing management of sport and tourism - Introduction

    OpenAIRE

    Bieger, Thomas; Beritelli, Pietro

    2003-01-01

    Marketing Management of sport and tourism does not just mean marketing of touristic sport products. Marketing management of sport and tourism can be divided into marketing of sport activities, events or infrastructure for people outside the location and marketing of tourism through sport activities, events and sport infrastructure. A system approach is introduced to serve as a model for explaining interrelations between the different elements in the sport and tourism context. As such destinat...

  19. Endocrine active contaminants in aquatic systems and intersex in common sport fishes

    Science.gov (United States)

    Lee Pow, Crystal S. D.; Law, J. Mac; Kwak, Thomas J.; Cope, W. Gregory; Rice, James A.; Kullman, Seth W.; Aday, D. Derek

    2017-01-01

    Male fish are susceptible to developing intersex, a condition characterized by the presence of testicular oocytes. In the present study, the relationship between intersex and exposure to estrogenic endocrine active contaminants (EACs) was assessed for 2 genera of sport fish, Micropterus and Lepomis, at 20 riverine sites. Seasonal trends and relationships between EACs and intersex (prevalence and severity) were examined at varying putative sources of EACs throughout North Carolina, identified as point sources, nonpoint sources, and reference sites. Intersex was identified in both genera, which was documented for the first time in wild-caught Lepomis. Intersex was more prevalent (59.8%) and more severe (1.6 mean rank) in Micropterus, which was highly correlation to EACs in sediment. In contrast, intersex was less common (9.9%) and less severe (0.2 mean rank) in Lepomis and was highly correlated to EACs in the water column. The authors found that concentrations of polycyclic aromatic hydrocarbons, polychlorinated biphenyls, industrial EACs, and estrogens were highest at point source sites; however, no source type variation was identified in the prevalence or severity of intersex, nor were there seasonal trends in intersex or EAC concentrations. The authors’ results associate genus-specific prevalence of intersex with specific EAC classes in common sport fishes having biological, ecological, and conservation implications.

  20. Examining 12-14 Age Secondary School Students’ Tendency to Violence doing Active Sport or not

    Directory of Open Access Journals (Sweden)

    Pelin Aydın

    2015-04-01

    Full Text Available The aim of this study was to investigate secondary school students’ tendency to violence, doing active sport or not. The sampling group of the study was consisted of 101 girls and 99 boys in the total 200 secondary school students in Kütahya city center of whose ages differs between of 12-14. In the study tendency to violence scale, developed by Göka and colleagues, was used as data gathering tool. In the evaluation of the data SPSS package program for Windows was used and after reliability of the scale was assessed One Sample Kolmogorov-Smirnov test was applied for if the obtained data was showing normal distribution and also as hypotheses tests Independent Samples t Test was applied for pairwise comparisons and One Way ANOVA test was applied for triple or more comparisons. As a result of the study there were no significant differences between students’ tendency to violence according to their ages and sport participation situations, on the other hand there were significant differences according to their class and perceived success in class. This study showed that class and perceived success in class are predictors of tendency to violence.

  1. THE EFFECT OF A LEISURE TIME SPORT ACTIVITY IN DEVELOPING MOTOR SKILLS OF YOUNG PEOPLE

    Directory of Open Access Journals (Sweden)

    Rodica PRODAN

    2016-05-01

    Full Text Available The research aimed to see how the family members’ involvement in the practice of leisure movement games (tennis raises the children’s movement wish and psychomotor skills: coordination, balance, rhythm, precision of movement. In conducting this research were used the survey method, the observation method, the measurement-evaluation method and the statistical-mathematical method. Data was collected during 10 months from 76 children, aged from 10 to 13 years (±3 months and enrolled in a leisure movement game program. Descriptive statistics indicate a significant effect of the variables: medicine ball throwing, speed running, endurance running and throwing target with the tennis ball. One can see a positive effect due to the Evaluation – Intervention interaction: medicine ball throwing η²=0.12, speed running η² = 0.13, endurance running η²=0.16, throwing target with the tennis ball η²=0.21. Educational leisure time sport movement games raise the level of driving skill development and psychomotor qualities, based on a greater involvement in the correct performance of sport activities.

  2. Body weight satisfaction and disordered eating among youth who are active in sport in Singapore

    Directory of Open Access Journals (Sweden)

    Michael Chia

    2015-04-01

    Full Text Available Purpose : The research examined the relationship between body weight satisfaction and disordered eating among youth who are active in sport in Singapore. Method : 137 youths (82 boys and 55 girls; age 12-13 enrolled in school sport completed two self-report questionnaires- SCOFF for disordered eating and body weight satisfaction- on two separate occasions that were six months apart (T1 vs. T2. Results : Body mass index for age classifications revealed that 5.1% were severely underweight; 1.5% underweight; 88.3% acceptable weight; 4.4% overweight and 0.7% were severely overweight. Conclusions : (i the prevalence of disordered eating was 46% at baseline measurement and this remained stable at 45.3% six months later; (ii there was no sex difference for disordered eating on the two measurement occasions (T1 vs. T2, p>0.05; (iii the prevalence of youths unsure of their bodyweight satisfaction was 26.6-21.2% which compared to 88.3% adjudged to be of healthy weight; across T1 and T2, more male subjects wanted to gain bodyweight while more female subjects wanted to lose bodyweight; and (iv subjects who were dissatisfied with their bodyweight had significantly greater odds of being at risk for developing DE. Holistic education programmes based upon body image and nutrition, are recommended.

  3. Double blind comparative study of piroxicam and indomethacin in acute locomotor affections linked with sports activity.

    Science.gov (United States)

    Commandre, F

    1983-01-01

    181 patients suffering from acute locomotor affections linked with sports activities were included in a multi-center study. The indications most frequently seen were sprains and tendinitis. 92 patients received piroxicam in a daily dosage of 4 capsules (40 mg) during the first two days, then 20 mg during the following days. 89 patients received a daily dose of indomethacin in a daily dose of 6 capsules (150 mg) for the first two days, and then 100 mg daily thereafter. Treatment lasted from 5 to seven days. Efficacy was judged to be very good or good in 89% of the patients treated with piroxicam against 76% of those treated with indomethacin, a statistically significant difference. Tolerance was also judged better with piroxicam. 4 patients suffered side effects with piroxicam, of which one stopped treatment after the second administration due to allergic reaction. 18 patients treated with indomethacin suffered from side effects, of which 5 stopped the treatment. In total, the use of piroxicam seems particularly interesting in sports medicine in comparison with indomethacin.

  4. American College of Sports Medicine position stand. Exercise and physical activity for older adults.

    Science.gov (United States)

    Chodzko-Zajko, Wojtek J; Proctor, David N; Fiatarone Singh, Maria A; Minson, Christopher T; Nigg, Claudio R; Salem, George J; Skinner, James S

    2009-07-01

    The purpose of this Position Stand is to provide an overview of issues critical to understanding the importance of exercise and physical activity in older adult populations. The Position Stand is divided into three sections: Section 1 briefly reviews the structural and functional changes that characterize normal human aging, Section 2 considers the extent to which exercise and physical activity can influence the aging process, and Section 3 summarizes the benefits of both long-term exercise and physical activity and shorter-duration exercise programs on health and functional capacity. Although no amount of physical activity can stop the biological aging process, there is evidence that regular exercise can minimize the physiological effects of an otherwise sedentary lifestyle and increase active life expectancy by limiting the development and progression of chronic disease and disabling conditions. There is also emerging evidence for significant psychological and cognitive benefits accruing from regular exercise participation by older adults. Ideally, exercise prescription for older adults should include aerobic exercise, muscle strengthening exercises, and flexibility exercises. The evidence reviewed in this Position Stand is generally consistent with prior American College of Sports Medicine statements on the types and amounts of physical activity recommended for older adults as well as the recently published 2008 Physical Activity Guidelines for Americans. All older adults should engage in regular physical activity and avoid an inactive lifestyle.

  5. Associations between sports participation, levels of moderate to vigorous physical activity and cardiorespiratory fitness in childrenand adolescents

    DEFF Research Database (Denmark)

    Silva, Gustavo; Andersen, Lars Bo; Aires, Luisa

    2013-01-01

    Abstract The purpose of this study was to analyse the associations between sports participation, levels of moderate to vigorous physical activity (MVPA) and cardiorespiratory fitness (CRF). The study comprised 310 participants (183 girls and 127 boys) aged 11-18 years. Sports participation...... was assessed by questionnaire and habitual physical activity (PA) was measured objectively with accelerometers. The 20-m shuttle-run test was used to estimate CRF. Logistic regression analyses were carried out with CRF as the outcome. The odds ratio (OR) for being fit was greater for those who comply with60min...

  6. SPORTS WATCHING CULTURE AMONG MALAYSIANS

    OpenAIRE

    Gunathevan Elumalai; Mohd Salleh Aman; Cassendra Gilbert; Muhammad Mat Yusof; Ahmad Tajuddin Othman; Lim Khong Chiu; Mohd Sofian Omar Fauzee; Hamdan Mohd Ali

    2015-01-01

    Background: Ardent sports watching will lead an individual to engage in sports and recreational activities continuously, while it also creates a sports culture among Malaysians. Sports watching culture is actually an intellectual activity. It is capable of evaluating behaviour, moral values and the level of appreciation of every spectator. Methods: This survey was conducted to identify the sports viewing culture among Malaysians. A cluster sampling method was used to select 6000 respondent...

  7. Expert athletes activate somatosensory and motor planning regions of the brain when passively listening to familiar sports sounds.

    Science.gov (United States)

    Woods, Elizabeth A; Hernandez, Arturo E; Wagner, Victoria E; Beilock, Sian L

    2014-06-01

    The present functional magnetic resonance imaging study examined the neural response to familiar and unfamiliar, sport and non-sport environmental sounds in expert and novice athletes. Results revealed differential neural responses dependent on sports expertise. Experts had greater neural activation than novices in focal sensorimotor areas such as the supplementary motor area, and pre- and postcentral gyri. Novices showed greater activation than experts in widespread areas involved in perception (i.e. supramarginal, middle occipital, and calcarine gyri; precuneus; inferior and superior parietal lobules), and motor planning and processing (i.e. inferior frontal, middle frontal, and middle temporal gyri). These between-group neural differences also appeared as an expertise effect within specific conditions. Experts showed greater activation than novices during the sport familiar condition in regions responsible for auditory and motor planning, including the inferior frontal gyrus and the parietal operculum. Novices only showed greater activation than experts in the supramarginal gyrus and pons during the non-sport unfamiliar condition, and in the middle frontal gyrus during the sport unfamiliar condition. These results are consistent with the view that expert athletes are attuned to only the most familiar, highly relevant sounds and tune out unfamiliar, irrelevant sounds. Furthermore, these findings that athletes show activation in areas known to be involved in action planning when passively listening to sounds suggests that auditory perception of action can lead to the re-instantiation of neural areas involved in producing these actions, especially if someone has expertise performing the actions. Copyright © 2014. Published by Elsevier Inc.

  8. Perceived sports competence mediates the relationship between childhood motor skill proficiency and adolescent physical activity and fitness: a longitudinal assessment.

    Science.gov (United States)

    Barnett, Lisa M; Morgan, Philip J; van Beurden, Eric; Beard, John R

    2008-08-08

    The purpose of this paper was to investigate whether perceived sports competence mediates the relationship between childhood motor skill proficiency and subsequent adolescent physical activity and fitness. In 2000, children's motor skill proficiency was assessed as part of a school-based physical activity intervention. In 2006/07, participants were followed up as part of the Physical Activity and Skills Study and completed assessments for perceived sports competence (Physical Self-Perception Profile), physical activity (Adolescent Physical Activity Recall Questionnaire) and cardiorespiratory fitness (Multistage Fitness Test). Structural equation modelling techniques were used to determine whether perceived sports competence mediated between childhood object control skill proficiency (composite score of kick, catch and overhand throw), and subsequent adolescent self-reported time in moderate-to-vigorous physical activity and cardiorespiratory fitness. Of 928 original intervention participants, 481 were located in 28 schools and 276 (57%) were assessed with at least one follow-up measure. Slightly more than half were female (52.4%) with a mean age of 16.4 years (range 14.2 to 18.3 yrs). Relevant assessments were completed by 250 (90.6%) students for the Physical Activity Model and 227 (82.3%) for the Fitness Model. Both hypothesised mediation models had a good fit to the observed data, with the Physical Activity Model accounting for 18% (R2 = 0.18) of physical activity variance and the Fitness Model accounting for 30% (R2 = 0.30) of fitness variance. Sex did not act as a moderator in either model. Developing a high perceived sports competence through object control skill development in childhood is important for both boys and girls in determining adolescent physical activity participation and fitness. Our findings highlight the need for interventions to target and improve the perceived sports competence of youth.

  9. Perceived sports competence mediates the relationship between childhood motor skill proficiency and adolescent physical activity and fitness: a longitudinal assessment

    Directory of Open Access Journals (Sweden)

    van Beurden Eric

    2008-08-01

    Full Text Available Abstract Background The purpose of this paper was to investigate whether perceived sports competence mediates the relationship between childhood motor skill proficiency and subsequent adolescent physical activity and fitness. Methods In 2000, children's motor skill proficiency was assessed as part of a school-based physical activity intervention. In 2006/07, participants were followed up as part of the Physical Activity and Skills Study and completed assessments for perceived sports competence (Physical Self-Perception Profile, physical activity (Adolescent Physical Activity Recall Questionnaire and cardiorespiratory fitness (Multistage Fitness Test. Structural equation modelling techniques were used to determine whether perceived sports competence mediated between childhood object control skill proficiency (composite score of kick, catch and overhand throw, and subsequent adolescent self-reported time in moderate-to-vigorous physical activity and cardiorespiratory fitness. Results Of 928 original intervention participants, 481 were located in 28 schools and 276 (57% were assessed with at least one follow-up measure. Slightly more than half were female (52.4% with a mean age of 16.4 years (range 14.2 to 18.3 yrs. Relevant assessments were completed by 250 (90.6% students for the Physical Activity Model and 227 (82.3% for the Fitness Model. Both hypothesised mediation models had a good fit to the observed data, with the Physical Activity Model accounting for 18% (R2 = 0.18 of physical activity variance and the Fitness Model accounting for 30% (R2 = 0.30 of fitness variance. Sex did not act as a moderator in either model. Conclusion Developing a high perceived sports competence through object control skill development in childhood is important for both boys and girls in determining adolescent physical activity participation and fitness. Our findings highlight the need for interventions to target and improve the perceived sports competence of youth.

  10. Perceived sports competence mediates the relationship between childhood motor skill proficiency and adolescent physical activity and fitness: a longitudinal assessment

    Science.gov (United States)

    Barnett, Lisa M; Morgan, Philip J; van Beurden, Eric; Beard, John R

    2008-01-01

    Background The purpose of this paper was to investigate whether perceived sports competence mediates the relationship between childhood motor skill proficiency and subsequent adolescent physical activity and fitness. Methods In 2000, children's motor skill proficiency was assessed as part of a school-based physical activity intervention. In 2006/07, participants were followed up as part of the Physical Activity and Skills Study and completed assessments for perceived sports competence (Physical Self-Perception Profile), physical activity (Adolescent Physical Activity Recall Questionnaire) and cardiorespiratory fitness (Multistage Fitness Test). Structural equation modelling techniques were used to determine whether perceived sports competence mediated between childhood object control skill proficiency (composite score of kick, catch and overhand throw), and subsequent adolescent self-reported time in moderate-to-vigorous physical activity and cardiorespiratory fitness. Results Of 928 original intervention participants, 481 were located in 28 schools and 276 (57%) were assessed with at least one follow-up measure. Slightly more than half were female (52.4%) with a mean age of 16.4 years (range 14.2 to 18.3 yrs). Relevant assessments were completed by 250 (90.6%) students for the Physical Activity Model and 227 (82.3%) for the Fitness Model. Both hypothesised mediation models had a good fit to the observed data, with the Physical Activity Model accounting for 18% (R2 = 0.18) of physical activity variance and the Fitness Model accounting for 30% (R2 = 0.30) of fitness variance. Sex did not act as a moderator in either model. Conclusion Developing a high perceived sports competence through object control skill development in childhood is important for both boys and girls in determining adolescent physical activity participation and fitness. Our findings highlight the need for interventions to target and improve the perceived sports competence of youth. PMID:18687148

  11. Butyrate reduces appetite and activates brown adipose tissue via the gut-brain neural circuit.

    Science.gov (United States)

    Li, Zhuang; Yi, Chun-Xia; Katiraei, Saeed; Kooijman, Sander; Zhou, Enchen; Chung, Chih Kit; Gao, Yuanqing; van den Heuvel, José K; Meijer, Onno C; Berbée, Jimmy F P; Heijink, Marieke; Giera, Martin; Willems van Dijk, Ko; Groen, Albert K; Rensen, Patrick C N; Wang, Yanan

    2017-11-03

    Butyrate exerts metabolic benefits in mice and humans, the underlying mechanisms being still unclear. We aimed to investigate the effect of butyrate on appetite and energy expenditure, and to what extent these two components contribute to the beneficial metabolic effects of butyrate. Acute effects of butyrate on appetite and its method of action were investigated in mice following an intragastric gavage or intravenous injection of butyrate. To study the contribution of satiety to the metabolic benefits of butyrate, mice were fed a high-fat diet with butyrate, and an additional pair-fed group was included. Mechanistic involvement of the gut-brain neural circuit was investigated in vagotomised mice. Acute oral, but not intravenous, butyrate administration decreased food intake, suppressed the activity of orexigenic neurons that express neuropeptide Y in the hypothalamus, and decreased neuronal activity within the nucleus tractus solitarius and dorsal vagal complex in the brainstem. Chronic butyrate supplementation prevented diet-induced obesity, hyperinsulinaemia, hypertriglyceridaemia and hepatic steatosis, largely attributed to a reduction in food intake. Butyrate also modestly promoted fat oxidation and activated brown adipose tissue (BAT), evident from increased utilisation of plasma triglyceride-derived fatty acids. This effect was not due to the reduced food intake, but explained by an increased sympathetic outflow to BAT. Subdiaphragmatic vagotomy abolished the effects of butyrate on food intake as well as the stimulation of metabolic activity in BAT. Butyrate acts on the gut-brain neural circuit to improve energy metabolism via reducing energy intake and enhancing fat oxidation by activating BAT. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

  12. Sports and leisure-time physical activity in pregnancy and birth weight: a population-based study

    DEFF Research Database (Denmark)

    Hegaard, H K; Petersson, K; Hedegaard, M

    2010-01-01

    We examined the association between sports and other leisure-time physical activities during pregnancy and birth weight of babies born after 37 completed weeks of gestation. All Danish-speaking pregnant women attending routine antenatal care at the Department of Obstetrics, Aarhus University......, light, and moderate to heavy) and birth weight were examined by linear and logistic regression and adjusted for potential confounding factors such as smoking, parity, schooling, pre-pregnancy body mass index and gestational age. The results showed that pregnant women who practiced sports or were...... Hospital, Denmark, from August 1989 to September 1991 were invited to participate in the study. A total of 4458 healthy women who delivered after 37 completed gestational weeks participated in this study. The associations between sports (0, 1-2, 3+ h/week) or leisure-time physical activity (sedentary...

  13. Identifying profiles of actual and perceived motor competence among adolescents: associations with motivation, physical activity, and sports participation.

    Science.gov (United States)

    De Meester, An; Maes, Jolien; Stodden, David; Cardon, Greet; Goodway, Jacqueline; Lenoir, Matthieu; Haerens, Leen

    2016-11-01

    The present study identified adolescents' motor competence (MC)-based profiles (e.g., high actual and low perceived MC), and accordingly investigated differences in motivation for physical education (PE), physical activity (PA) levels, and sports participation between profiles by using regression analyses. Actual MC was measured with the Körperkoordinationstest für Kinder. Adolescents (n = 215; 66.0% boys; mean age = 13.64 ± .58 years) completed validated questionnaires to assess perceived MC, motivation for PE, PA-levels, and sports participation. Actual and perceived MC were only moderately correlated and cluster analyses identified four groups. Two groups of overestimators (low - overestimation, average - overestimation) were identified (51%), who particularly displayed better motivation for PE when compared to their peers who accurately estimated themselves (low - accurate, average - accurate). Moreover, adolescents with low actual MC, but high perceived MC were significantly more active than adolescents with low actual MC who accurately estimated themselves. Results pointed in the same direction for organised sports participation. Underestimators were not found in the current sample, which is positive as underestimation might negatively influence adolescents' motivation to achieve and persist in PA and sports. In conclusion, results emphasise that developing perceived MC, especially among adolescents with low levels of actual MC, seems crucial to stimulate motivation for PE, and engagement in PA and sports.

  14. [Urban culture and physical and sports activities. The "sportification" of parkour and street golf as cultural mediation].

    Science.gov (United States)

    Lebreton, Florian; Routier, Guillaume; Héas, Stephane; Bodin, Dominique

    2010-08-01

    The article explores the process of "sportification"--i.e., processing physical activity in a sport regulated by a set of rules and standards, legitimized by supervisory institutions--from two originals practices, parkour and urban golf. To study these practices, we crossed the contributions of urban sociology and of the contemporary sociology of sport while respecting the methodological principles of qualitative sociology. A first point concerns the process of"sport" itself, its definition, its various stages, and the role played by communication of stakeholders on public space. The cultural mediation shows us how to institutionalize the movement that represents the "sports" resulted in the same time reconfiguration of physical practices themselves. Recent events illustrate the ongoing reconfiguration, we will detail them. Finally, we show the effects produced by the process on the definition of urban culture and sports: setting sight of activities, enhanced cooperation with the media-cultural, polarization between different types of practical in the case of parkour, around a confrontation between two of the founders.

  15. The influence of gender and academic training int he entrepreneurial intention of physical activity and sport sciences students

    Directory of Open Access Journals (Sweden)

    María Huertas González Serrano

    2016-06-01

    Full Text Available Purpose: The objective of this article is to know if there are differences in the variables that explain the entrepreneurial intention of the Physical Activity and Sport Science students addressing academic training and gender of them. Design/methodology/approach: To know entrepreneurial intentions and the different variables related to entrepreneurship, a questionnaire previously validated was used. The questionnaire was provided to 578 students pre-graduated (1st-4th course and post-graduate of Physical Activity and Sport Science degree of Valencia. Findings: Statistically significant differences (p ≤ 0.05 in the variables that predict entrepreneurial intention of Physical Activity and Sport Science students by gender and training were found. In both genders, the attitude towards entrepreneurship and the perceived behavior control were the predictors of entrepreneurial intentions and in men also the subjective norms. Research limitations/implications: The students sample belongs only to the Physical Activity and Sport Science degree of Valencia, so the results cannot be extrapolated to the entire population. Practical implications: It should be developing the attitude toward the behavior of entrepreneurship and perceived behavioral control to promote entrepreneurship. In this way, the graduates will be more prepare for insertion into the working world. Social implications: To increase the number of entrepreneurs (male and female in the sports sector throughout the education, reducing the gender gap in entrepreneurship and improve the quality of entrepreneurship, as this is a key issue because of the positive impact that this phenomenon generates on the economy Originality/value: It is interesting to know the predictor variables of entrepreneurial intentions, and to know if there are differences based on education and gender due to the massive entry of women into the sport workplaces and low intention to undertake of the. So it is quite

  16. A Preliminary Investigation of Accelerometer-Derived Sleep and Physical Activity Following Sport-Related Concussion.

    Science.gov (United States)

    Sufrinko, Alicia M; Howie, Erin K; Elbin, R J; Collins, Michael W; Kontos, Anthony P

    2018-03-29

    Describe changes in postconcussion activity levels and sleep throughout recovery in a sample of pediatric sport-related concussion (SRC) patients, and examine the predictive value of accelerometer-derived activity and sleep on subsequent clinical outcomes at a follow-up clinic visit. Outpatient concussion clinic. Twenty athletes aged 12 to 19 years with diagnosed SRC. Prospective study including visit 1 (sleep across recovery. Symptom, neurocognitive, and vestibular/oculomotor scores; sleep and activity data (Actigraph GT3x+) RESULTS:: The maximum intensity of physical activity increased (P = .009) and time in bed decreased throughout recovery (P = .026). Several physical activity metrics from 0 to 6 days postinjury were predictive of worse vestibular/oculomotor scores at visit 2 (P sleep 0 to 6 days postinjury were associated with worse reaction time at visit 2 (P sleep change from the acute to subacute postinjury time period in adolescent SRC patients. In our small sample, excess physical activity and poor sleep the first week postinjury may be associated with worse outcomes at follow-up in the subacute stage of recovery. This study further supported the feasibility of research utilizing wearable technology in concussion patients, and future research in a large, diverse sample of concussion patients examined at concise time intervals postinjury is needed.

  17. DQ reference frame modeling and control of single-phase active power decoupling circuits

    DEFF Research Database (Denmark)

    Tang, Yi; Qin, Zian; Blaabjerg, Frede

    2015-01-01

    . This paper presents the dq synchronous reference frame modeling of single-phase power decoupling circuits and a complete model describing the dynamics of dc-link ripple voltage is presented. The proposed model is universal and valid for both inductive and capacitive decoupling circuits, and the input...... of decoupling circuits can be either dependent or independent of its front-end converters. Based on this model, a dq synchronous reference frame controller is designed which allows the decoupling circuit to operate in two different modes because of the circuit symmetry. Simulation and experimental results...... are presented to verify the effectiveness of the proposed modeling and control method....

  18. Adventure and Extreme Sports.

    Science.gov (United States)

    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.

  19. Circuit Training.

    Science.gov (United States)

    Nelson, Jane B.

    1998-01-01

    Describes a research-based activity for high school physics students in which they build an LC circuit and find its resonant frequency of oscillation using an oscilloscope. Includes a diagram of the apparatus and an explanation of the procedures. (DDR)

  20. Financial barriers and pricing strategies related to participation in sports activities: the perceptions of people of low income.

    Science.gov (United States)

    Steenhuis, Ingrid H M; Nooy, Steffie B C; Moes, Machiel J G; Schuit, Albertine J

    2009-11-01

    Physical activity levels in most affluent countries are low and many people do not meet the current recommendations. Particularly for people with a low income, economic strategies seem promising to stimulate taking part in sports activities. This study investigated the importance of economic restraints for taking part in sports activities as well as perceptions of low-income people toward different pricing interventions. A qualitative study was conducted, using semistructured, individual interviews with 27 low-income men and women. The framework approach was used to analyze the transcripts of the interviews. The respondents considered finances to be an important barrier for participating in sports activities, together with some individual barriers. Promising pricing strategies are a discount on the subscription to the fitness or sports club, a 1 month free trial, and free entrance to the swimming pool once a week. Pricing strategies may be a promising intervention to increase physical activity levels of low-income people. However, this study indicates that this should be coupled with an intervention directed at individual barriers. Some pricing strategies will be used and appreciated more by low-income people than other pricing strategies. In addition, pricing strategies should be tailored to individual needs and preferences.

  1. Does regional disadvantage affect health-related sport and physical activity level? A multi-level analysis of individual behaviour.

    Science.gov (United States)

    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.

  2. RECOMMENDATIONS FOR CARDIOVASCULAR SCREENING OF ADULTS PARTICIPATING IN LEISURE-TIME SPORT ACTIVITIES

    Directory of Open Access Journals (Sweden)

    Katja Ažman Juvan

    2015-01-01

    Full Text Available Participation in regular moderate aerobic physical activity and increased physical fitness is associated with a decrease in cardiovascular mortality, which is after the age of 35 most often due to coronary events. On the other hand, moderate and vigorous physical exertion is associated with an increased risk for cardiac events, including sudden cardiac death in individuals harbouring cardiovascular disease. The risk-benefit ratio may differ in relation to the individual's age, fitness level and the presence and type of cardiovascular disease.The latest position stand of the European association of Cardiovascular Prevention and Rehabilitation on cardiovascular evaluation in middle aged/senior individuals, who are contemplating exercise or who are already engaged in nonprofessional competitive or recreational leisure sporting activity, is presented in the article. The aim of recommendations is to evaluate and encourage as many individuals as possible to participate in regular physical activity while minimizing the risk of cardiovascular adverse events. Recommendations are based on the individual's risk profile and the intended level of physical activity. Because of the large size of the population, an initial self assessment through health questionaire is proposed, relating to symptoms, risk factors for coronary artery disease and habitual exercise level. For those with positive self-assessed risk profile and those willing to perform high-intensity activities, a further risk stratification/evaluation should be performed by a qualified physician. In individuals with an increased risk for coronary events, maximal exerise is advocated and then further (cardiological evaluation when needed.

  3. Exposure to Forced Swim Stress Alters Local Circuit Activity and Plasticity in the Dentate Gyrus of the Hippocampus

    Directory of Open Access Journals (Sweden)

    Mouna Maroun

    2008-02-01

    Full Text Available Studies have shown that, depending on its severity and context, stress can affect neural plasticity. Most related studies focused on synaptic plasticity and long-term potentiation (LTP of principle cells. However, evidence suggests that following high-frequency stimulation, which induces LTP in principal cells, modifications also take place at the level of complex interactions with interneurons within the dentate gyrus, that is, at the local circuit level. So far, the possible effects of stress on local circuit activity and plasticity were not studied. Therefore, we set out to examine the possible alterations in local circuit activity and plasticity following exposure to stress. Local circuit activity and plasticity were measured by using frequency dependant inhibition (FDI and commissural modulation protocols following exposure to a 15 minute-forced swim trial. Exposure to stress did not alter FDI. The application of theta-burst stimulation (TBS reduced FDI in both control and stressed rats, but this type of plasticity was greater in stressed rats. Commissural-induced inhibition was significantly higher in stressed rats both before and after applying theta-burst stimulation. These findings indicate that the exposure to acute stress affects aspects of local circuit activity and plasticity in the dentate gyrus. It is possible that these alterations underlie some of the behavioral consequences of the stress experience.

  4. Exposure to Forced Swim Stress Alters Local Circuit Activity and Plasticity in the Dentate Gyrus of the Hippocampus

    Science.gov (United States)

    Yarom, Orli; Maroun, Mouna; Richter-Levin, Gal

    2008-01-01

    Studies have shown that, depending on its severity and context, stress can affect neural plasticity. Most related studies focused on synaptic plasticity and long-term potentiation (LTP) of principle cells. However, evidence suggests that following high-frequency stimulation, which induces LTP in principal cells, modifications also take place at the level of complex interactions with interneurons within the dentate gyrus, that is, at the local circuit level. So far, the possible effects of stress on local circuit activity and plasticity were not studied. Therefore, we set out to examine the possible alterations in local circuit activity and plasticity following exposure to stress. Local circuit activity and plasticity were measured by using frequency dependant inhibition (FDI) and commissural modulation protocols following exposure to a 15 minute-forced swim trial. Exposure to stress did not alter FDI. The application of theta-burst stimulation (TBS) reduced FDI in both control and stressed rats, but this type of plasticity was greater in stressed rats. Commissural-induced inhibition was significantly higher in stressed rats both before and after applying theta-burst stimulation. These findings indicate that the exposure to acute stress affects aspects of local circuit activity and plasticity in the dentate gyrus. It is possible that these alterations underlie some of the behavioral consequences of the stress experience. PMID:18301720

  5. Sports participation in adolescents and young adults with myelomeningocele and its role in total physical activity behaviour and fitness

    NARCIS (Netherlands)

    L.M. Buffart (Laurien); H.P. Ploeg (Hidde); A.E. Bauman (Adrian); F.W. van Asbeck (Floris); M.E. Roebroeck (Marij); H.J.G. van den Berg-Emons (Rita); H.J. Stam (Henk)

    2008-01-01

    textabstractObjective: To assess sports participation in young adults with myelomeningocele and its association with personal, disease-related and psychosocial factors, physical activity and fitness. Design: Cross-sectional study. Subjects: Fifty-one persons (26 males) with myelomeningocele, mean

  6. Decrease in heart rate after longitudinal participation in the Groningen Active Living Model (GALM) recreational sports programme

    NARCIS (Netherlands)

    de Jong, Johan; Lemmink, Koen; Scherder, Erik; Stewart, Roy; King, Abby; Stevens, Martin

    2009-01-01

    The aim of this study was to investigate changes in heart rate during submaximal exercise as an index of cardiovascular function in older adults participating in the Groningen Active Living Model recreational sports programme who were sedentary or underactive at baseline. A repeated measurement

  7. Longitudinal changes in heart rate after participating in the Groningen Active Living Model (GALM) recreational sports programme

    NARCIS (Netherlands)

    de Jong, Johan; Lemmink, Koen; Scherder, Erik; Stewart, Roy; King, Abby C.

    2009-01-01

    The aim of this study was to investigate changes in heart rate during submaximal exercise as an index of cardiovascular function in older adults participating in the Groningen Active Living Model recreational sports programme who were sedentary or underactive at baseline. A repeated measurement

  8. A systematic review of the relationship between physical activities in sports or daily life and postural sway in upright stance

    NARCIS (Netherlands)

    Kiers, H.; van Dieen, J.H.; Dekkers, H.; Wittink, H.; Vanhees, L.

    2013-01-01

    Background: In many sports, maintaining balance is necessary to compete at a high level. Also, in many health problems, balance is impaired. Postural sway (PS) is often used as an indicator of upright balance control, and physical activity (PA) might enhance balance control. However, the

  9. Sports and leisure-time physical activity in pregnancy and birth weight: a population-based study.

    Science.gov (United States)

    Hegaard, H K; Petersson, K; Hedegaard, M; Ottesen, B; Dykes, A K; Henriksen, T B; Damm, P

    2010-02-01

    We examined the association between sports and other leisure-time physical activities during pregnancy and birth weight of babies born after 37 completed weeks of gestation. All Danish-speaking pregnant women attending routine antenatal care at the Department of Obstetrics, Aarhus University Hospital, Denmark, from August 1989 to September 1991 were invited to participate in the study. A total of 4458 healthy women who delivered after 37 completed gestational weeks participated in this study. The associations between sports (0, 1-2, 3+ h/week) or leisure-time physical activity (sedentary, light, and moderate to heavy) and birth weight were examined by linear and logistic regression and adjusted for potential confounding factors such as smoking, parity, schooling, pre-pregnancy body mass index and gestational age. The results showed that pregnant women who practiced sports or were moderate to heavy leisure-time physical active during the early second or the early third trimester gave birth to infants with a similar birth weight as inactive women. The proportion of newborns with a low (/=4500 g) was also unchanged. In conclusion, in this large population-based study, we found no association between sports and leisure-time physical activity and low-birth weight, high-birth weight, or average-birth weight.

  10. The Place of Sport and Physical Activity in Young People's Lives and Its Implications for Health: Some Sociological Comments

    Science.gov (United States)

    Smith, Andrew; Green, Ken

    2005-01-01

    This exploratory paper seeks, first, to offer some critical sociological comments on the common-sense, or rather ideological, claims surrounding two supposedly emerging "crises": namely, the alleged poor health and declining sport and physical activity participation levels of young people. In this regard, it is suggested that while young people…

  11. Promoting physical activity among adolescent girls: the Girls in Sport group randomized trial.

    Science.gov (United States)

    Okely, Anthony D; Lubans, David R; Morgan, Philip J; Cotton, Wayne; Peralta, Louisa; Miller, Judith; Batterham, Marijka; Janssen, Xanne

    2017-06-21

    Slowing the decline in participation in physical activity among adolescent girls is a public health priority. This study reports the outcomes from a multi-component school-based intervention (Girls in Sport), focused on promoting physical activity among adolescent girls. Group randomized controlled trial in 24 secondary schools (12 intervention and 12 control). Assessments were conducted at baseline (2009) and at 18 months post-baseline (2010). The setting was secondary schools in urban, regional and rural areas of New South Wales, Australia. All girls in Grade 8 in 2009 who attended these schools were invited to participate in the study (N = 1769). Using a Health Promoting Schools and Action Learning Frameworks, each school formed a committee and developed an action plan for promoting physical activity among Grade 8 girls. The action plan incorporated strategies in three main areas - i) the formal curriculum, ii) school environment, and iii) home/school/community links - based on the results of formative data from target girls and staff and on individual needs of the school. A member of the research team supported each school throughout the intervention. The main outcome measure was accelerometer-derived total physical activity (TPA) spent in physical activity. Data were analyzed from December 2011 to March 2012. 1518 girls (mean age 13.6y ±0.02) were assessed at baseline. There was a significant decline in TPA from baseline to 18-month follow-up with no differences between girls in the intervention and control schools. Only one-third of schools (4/12) implemented the intervention as per their action plan. Per-protocol analyses on these schools revealed a smaller decline in percentage of time spent in MVPA among girls in the intervention group (adjusted difference 0.5%, 95% CI = -0.01, 0.99, P = 0.05). The Girls in Sport intervention was not effective in reducing the decline in physical activity among adolescent girls. Lack of implementation by most

  12. Leisure Sport Participation in Cyprus

    OpenAIRE

    Nicos Kartakoullis; Evan Webb; George Karlis; Stavros Pouloukas; Christina Loizou

    2015-01-01

    This study contributes to the limited existing research on the participation patterns of Cypriots in leisure and sports. Leisure and sport are viewed collectively while adapting the notion put forth by The Council of Europe (2007) defining leisure sports as sports activities aimed at the preservation and improvement of physical condition, health and fun. The purpose of this paper is to examine the leisure sport participation patterns of Cypriots, specifically: (1) participation patterns in le...

  13. Magneto Rheological Semi-Active Damper with External By-pass Circuit in Modular Structure

    Directory of Open Access Journals (Sweden)

    Alexandru Boltoşi

    2010-10-01

    Full Text Available In order to perform experimentally studies, in the paper it is presented a simple method which was elaborated to realize reliable, at low cost and reproducible semi-active dampers with magnetorheological fluids, having external magnetic circuit. The main components are common constitutive elements of industrial hydraulic and pneumatic drivers, having the supplementary advantages being manufactured in a large scale of overall dimensions and demanding minimal modifications. As accumulator, a similar type of hydraulic or pneumatic cylinder was used. The work of the whole damper can be optimized by modifying the nitrogen pressure and interior volume of accumulator. Another important advantage of this conception is the possibility to realize a modular structure composed by the damper, accumulator and magnetic field generator, interconnected by flexible elements.

  14. Microwave amplifier and active circuit design using the real frequency technique

    CERN Document Server

    Jarry, Pierre

    2016-01-01

    This book focuses on the authors' Real Frequency Technique (RFT) and its application to a wide variety of multi-stage microwave amplifiers and active filters, and passive equalizers for radar pulse shaping and antenna return loss applications. The first two chapters review the fundamentals of microwave amplifier design and provide a description of the RFT. Each subsequent chapter introduces a new type of amplifier or circuit design, reviews its design problems, and explains how the RFT can be adapted to solve these problems. The authors take a practical approach by summarizing the design steps and giving numerous examples of amplifier realizations and measured responses. Provides a complete description of the RFT as it is first used to design multistage lumped amplifiers using a progressive optimization of the equalizers, leading to a small umber of parameters to optimize simultaneously Presents modifications to the RFT to design trans-impedance microwave amplifiers that are used for photodiodes acti...

  15. LEASURE TIME ACTIVITY AMONG STUDENTS FROM UNIVERSITY OF PRISHTINA, FAKULTY OF PHYSICAL EDUCATION AND SPORT

    Directory of Open Access Journals (Sweden)

    Besnik Morina

    2015-05-01

    Full Text Available This paper presents the results of the research on the physical activity of students in the Faculty of Physical Education and Sport, University of Prishtina “Hasan Prishtina” Kosovo. The purpose of this cognitive study was to diagnose certain aspects of the lifestyle of students, with a particular focus on physical activity and, the difference in sex. The practical aim, however, was an indication of such actions, arising from past experience that would aim at improving lifestyle, and could lead to the elimination or prevention of certain causes of not making movement activity by the students in our country. The research was conducted by the use of diagnostic survey in the group of 120 people aged 18-37, among whom there were 56 girls and 64 boys. The research material was collected in 2014. The research that was carried out shows that the level of wealth (not so much of the family, but of the whole country may have an impact on the choice of activities taken by the students. Undoubtedly socio-cultural factors and the tradition of social life, which impose certain ways of spending leisure time (particularly in the case of the students as we can see in the results obtained, where we also found that there is no statistically significant differences between girls and boys. The above observations, taking into account local conditions, should be the starting point for all those who plan introducing changes in physical education systems in my country in the future.

  16. The Health and Sport Engagement (HASE) Intervention and Evaluation Project: protocol for the design, outcome, process and economic evaluation of a complex community sport intervention to increase levels of physical activity.

    Science.gov (United States)

    Mansfield, Louise; Anokye, Nana; Fox-Rushby, Julia; Kay, Tess

    2015-10-26

    Sport is being promoted to raise population levels of physical activity for health. National sport participation policy focuses on complex community provision tailored to diverse local users. Few quality research studies exist that examine the role of community sport interventions in raising physical activity levels and no research to date has examined the costs and cost-effectiveness of such provision. This study is a protocol for the design, outcome, process and economic evaluation of a complex community sport intervention to increase levels of physical activity, the Health and Sport Engagement (HASE) project part of the national Get Healthy Get Active programme led by Sport England. The HASE study is a collaborative partnership between local community sport deliverers and sport and public health researchers. It involves designing, delivering and evaluating community sport interventions. The aim is to engage previously inactive people in sustained sporting activity for 1×30 min a week and to examine associated health and well-being outcomes. The study uses mixed methods. Outcomes (physical activity, health, well-being costs to individuals) will be measured by a series of self-report questionnaires and attendance data and evaluated using interrupted time series analysis controlling for a range of sociodemographic factors. Resource use will be identified and measured using diaries, interviews and records and presented alongside effectiveness data as incremental cost-effectiveness ratios and cost-effectiveness acceptability curves. A longitudinal process evaluation (focus groups, structured observations, in-depth interview methods) will examine the efficacy of the project for achieving its aim using the principles of thematic analysis. The results of this study will be disseminated through peer-reviewed publications, academic conference presentations, Sport England and national public health organisation policy conferences, and practice-based case studies

  17. Technology and Sport

    DEFF Research Database (Denmark)

    Møller, Rasmus Bysted; Møller, Verner

    2015-01-01

    The relationship between sport and technology is close and can be both fruitful and destructive. Technology has a constitutive function in sport as it makes the activity possible and it can enhance performance as well as the sporting experience. The use of football boots is clearly more comfortable...... and effective than playing in bare feet in a game of football. However, sport challenges its athletes by demanding the employment of less efficient means rather than more efficient means in pursuit of sport specific goals. Therefore technology can potentially subtract from the sporting experience and even...... threaten the internal logic of sport. If as an example very efficient hail cartridges were allowed for use in double trap shooting it would reduce the skills required to excel at that discipline reducing its value for participants and spectators alike. The use of forbidden performance enhancing substances...

  18. [Heart and sport].

    Science.gov (United States)

    Gabus, Vincent; Monney, Pierre

    2017-05-24

    Physical activity is beneficial for health and the cardiovascular risk profile. However, it can be dangerous in people with cardiac disease that might be asymptomatic. Individuals of all ages and all levels engage in sporting activities. The medical approach is different whether one evaluates a young competitive athlete, a sedentary adult who wants to start a recreational sport or a patient with heart disease who wishes to engage in sport. This article summarizes the various recommendations on the subject.

  19. Analyses of heart rate variability in young soccer players: the effects of sport activity.

    Science.gov (United States)

    Bricout, Véronique-Aurélie; Dechenaud, Simon; Favre-Juvin, Anne

    2010-04-19

    The use of heart rate variability (HRV) in the management of sport training is a practice which tends to spread, especially in order to prevent the occurrence of states of fatigue. To estimate the HRV parameters obtained using a heart rate recording, according to different loads of sporting activities, and to make the possible link with the appearance of fatigue. Eight young football players, aged 14.6 years+/-2 months, playing at league level in Rhône-Alpes, training for 10 to 20 h per week, were followed over a period of 5 months, allowing to obtain 54 recordings of HRV in three different conditions: (i) after rest (ii) after a day with training and (iii) after a day with a competitive match. Under the effect of a competitive match, the HRV temporal indicators (heart rate, RR interval, and pNN50) were significantly altered compared to the rest day. The analysis of the sympathovagal balance rose significantly as a result of the competitive constraint (0.72+/-0.17 vs. 0.90+/-0.20; pHRV is an objective and non-invasive monitoring of management of the training of young sportsmen. HRV analysis allowed to highlight any neurovegetative adjustments according to the physical loads. Thus, under the effect of an increase of physical and psychological constraints that a football match represents, the LF/HF ratio rises significantly; reflecting increased sympathetic stimulation, which beyond certain limits could be relevant to prevent the emergence of a state of fatigue. 2009 Elsevier B.V. All rights reserved.

  20. Comparing fMRI activation during smooth pursuit eye movements among contact sport athletes, non-contact sport athletes, and non-athletes

    Directory of Open Access Journals (Sweden)

    Derek Kellar

    Full Text Available Objectives: Though sub-concussive impacts are common during contact sports, there is little consensus whether repeat blows affect brain function. Using a “lifetime exposure” rather than acute exposure approach, we examined oculomotor performance and brain activation among collegiate football players and two control groups. Our analysis examined whether there are group differences in eye movement behavioral performance and in brain activation during smooth pursuit. Methods: Data from 21 off-season Division I football “starters” were compared with a 19 collegiate cross-country runners, and b 11 non-athlete college students who were SES matched to the football player group (total N = 51. Visual smooth pursuit was performed while undergoing fMRI imaging via a 3 Tesla scanner. Smooth pursuit eye movements to three stimulus difficulty levels were measured with regard to RMS error, gain, and lag. Results: No meaningful differences were found for any of the standard analyses used to assess smooth pursuit eye movements. For fMRI, greater activation was seen in the oculomotor region of the cerebellar vermis and areas of the FEF for football players as compared to either control group, who did not differ on any measure. Conclusion: Greater cerebellar activity among football players while performing an oculomotor task could indicate that they are working harder to compensate for some subtle, long-term subconcussive deficits. Alternatively, top athletes in a sport requiring high visual motor skill could have more of their cerebellum and FEF devoted to oculomotor task performance regardless of subconcussive history. Overall, these results provide little firm support for an effect of accumulated subconcussion exposure on brain function. Keywords: Smooth pursuit, fMRI, Collegiate athletics

  1. INVESTIGATION OF LEISURE ACTIVITY ASSESSMENT MODES OF THE UNIVERSITY STUDENTS STUDYING AT SCHOOL OF PHYSICAL EDUCATION AND SPORT

    Directory of Open Access Journals (Sweden)

    Hayri AKYÜZ

    2015-07-01

    Full Text Available This study was conducted to determine leisure activi ty assessment modes of the university students studying at Bartın University School of Physical Education a nd Sport . The universe of the study was composed of 405 university students attending to School of Physical Education a nd Sport , and 291 of them were chosen randomly as the sample group who participated to the survey voluntarily. Questionnaire form was used as data collection tool. Collected data were analyzed with SPSS 15.0 statistical software package , frequency (f and percentage (% distributions were interpreted presented in tables. According to analysis results, 43% of students who participated in the study have 3 - 4 hours leisure time and 33 % of students 5 - 6 hours leisure time. In addition, it was observed that families provide d adequate support for students about leisure. Moreover, a large majority of students found that leisure activities are educational and useful. 53.3% of students defined as leisure time left over from the work they have to do. Furthermore a ccording to the majority students , sports provides a regular life to people. The activities in students leisure time respectively shaped 1. listening to music, 2. sports bringing active participation, 3 . going to cinema and theater, 4. watchi ng TV, 5. monitoring sports competitions . As a result, it has been identified that social activities of the department they study are inadequate and they did not adequately use school facilities , even though a majority of students have sufficient time to join in an activity.

  2. Upper limb muscle activation during sports video gaming of persons with spinal cord injury.

    Science.gov (United States)

    Jaramillo, Jeffrey P; Johanson, M Elise; Kiratli, B Jenny

    2018-04-04

    Video gaming as a therapeutic tool has largely been studied within the stroke population with some benefits reported in upper limb motor performance, balance, coordination, and cardiovascular status. To date, muscle activation of upper limb muscles in persons with spinal cord injuries (SCI) has not been studied during video game play. In this paper, we provide descriptive and comparative data for muscle activation and strength during gaming for players with tetraplegia and paraplegia, as well as, compare these results with data from traditional arm exercises (ie, biceps curl and shoulder press) with light weights which are commonly prescribed for a home program. Fourteen individuals with chronic SCI (9 tetraplegia, 5 paraplegia). We measured upper limb muscle activation with surface electromyography (EMG) during Wii Sports video game play. Muscle activation was recorded from the playing arm during 4 selected games and normalized to a maximum voluntary contraction (MVC). Heart rate and upper limb motion were recorded simultaneously with EMG. Wilcoxon signed rank tests were used to analyze differences in muscle activation between participants with paraplegia versus tetraplegia and compare gaming with traditional arm exercises with light weights. A Friedman 2-way analysis of variance identified key muscle groups active during game play. Overall muscle activation across the games was not different between those with paraplegia and tetraplegia. Heart rate during video game play for tennis and boxing were on average 10 to 20 beats/minute above resting heart rate. The magnitude of EMG was relatively greater for traditional arm exercises with light weights compared with game play. The selected Wii games were able to elicit upper extremity muscle activation and elevated heart rates for individuals with SCI that may be used to target therapeutic outcomes.

  3. The circuit designer's companion

    CERN Document Server

    Williams, Tim

    1991-01-01

    The Circuit Designer's Companion covers the theoretical aspects and practices in analogue and digital circuit design. Electronic circuit design involves designing a circuit that will fulfill its specified function and designing the same circuit so that every production model of it will fulfill its specified function, and no other undesired and unspecified function.This book is composed of nine chapters and starts with a review of the concept of grounding, wiring, and printed circuits. The subsequent chapters deal with the passive and active components of circuitry design. These topics are foll

  4. Sibling Influence on Physical Activity and Sport Participation: Considerations for Coaches

    Science.gov (United States)

    Allbaugh, Chelsea N.; Bolter, Nicole D.; Shimon, Jane M.

    2016-01-01

    Sibling relationships are some of the most influential throughout one's life. While family influences have often been examined in sports settings, less has been studied regarding the specific roles siblings may play. Research suggests that the way athletes view sport participation can be shaped by their experiences and relationships with siblings.…

  5. Sensitivity analysis of an LCL-filter-based three-phase active rectifier via a virtual circuit approach

    DEFF Research Database (Denmark)

    Blaabjerg, Frede; Chiarantoni, Ernesto; Aquila, Antonio Dell’

    2004-01-01

    Three-phase active rectifiers based on the voltage source converter topology can successfully replace traditional thyristor based rectifiers or diode bridge plus chopper in interfacing dc-systems to the grid. However, if the application in which they are employed has a high safety issue......, to the grid side stiffness and to the parameters of the controller has never been detailed considered. In this paper the experimental results of an LCL-filter-based three-phase active rectifier are analysed with the circuit theory approach. A ?virtual circuit? is synthesized in role of the digital controller...

  6. Sports physical

    Science.gov (United States)

    ... page: //medlineplus.gov/ency/patientinstructions/000673.htm Sports physical To use the sharing features on this page, ... routine checkups. Why do you Need a Sports Physical? The sports physical is done to: Find out ...

  7. Sports eyewear protective standards.

    Science.gov (United States)

    Dain, Stephen J

    2016-01-01

    Eye injuries sustained during sport comprise up to 20 per cent of all injuries to the eye serious enough for medical attention to be sought. The prevalence of eye injuries in sport is not easily assessed due to lack of authoritative participation rates, so most studies report total numbers in a time period. The evidence on the proportion of all ocular injuries that are from sport is reviewed. The relative frequencies in different sports are compared in a qualitative manner and the sports with greater numbers of ocular injuries are detailed. In common with occupational injuries to the eye, most sports eye injuries are considered preventable. The hierarchy of action for occupational risk is detailed and adapted to use in a sports scenario. All the available international, regional and national standards on sports eye protection are detailed and their provisions compared. The major function of the standards is to provide adequate protection against the hazard of the sport concerned. These are detailed and compared as a function of energy transfer. Eye protection must not introduce additional or secondary hazards (for instance, fracturing into sharp fragments on impact) and not introduce features that would deter the wearing of eye protection (for instance, restricting field of view to impede playing the sport). The provisions of the standards intended to limit secondary hazards are detailed and compared. The need for future work in standards writing and the activities of the International Standardization Organization in sports eye protection are detailed. © 2016 Optometry Australia.

  8. Influence of the emotional state on behavior in extreme conditions of competitive sports activities

    Directory of Open Access Journals (Sweden)

    V.A. Malakhov

    2014-04-01

    Full Text Available Purpose : establish a communication pattern of emotional intensity and level of extreme environment in which activity is performed. Materials : in the study involved 600 men aged 18-22 years. Results : the effect of the emotional state on the efficiency of the motor activity that flowed under extreme conditions. Set individual characteristics flow sports activities in extreme conditions. First used in the special semantic space for the orderly presentation of research results parachute jumps. The monogram built in semantic fields allows to establish the frequency response range of individual heartbeats and the optimal frequency for maximum performance. On the basis of established regularities of the "reflex of readiness" assessment methodology given emotional stress, which reflects the readiness of an individual to perform a parachute jump. An objective indicator of preparedness measures is a violation of the symmetry of the flow and haptic reflex and serial dynamometry. Conclusions : in using semantic spaces reflects the flowing of reflex of biological caution and accompaniment reflex. In the basis of constructing estimates of emotional stress are the regularities of mean arterial pressure as nonspecific reactions. Measure of extent of confused is estimated by variability of accompaniment reflex. Breach of symmetry in mean arterial pressure and the amplitude - frequency response accompaniment reflex, determine the validity of staying in extreme conditions. Introduction of the measure in using semantic spaces allows by selective data to establish the overall structure of the studied process.

  9. Influence of the emotional state on behavior in extreme conditions of competitive sports activities

    Directory of Open Access Journals (Sweden)

    Malakhov V.A.

    2014-03-01

    Full Text Available Purpose : establish a communication pattern of emotional intensity and level of extreme environment in which activity is performed. Materials : in the study involved 600 men aged 18-22 years. Results : the effect of the emotional state on the efficiency of the motor activity that flowed under extreme conditions. Set individual characteristics flow sports activities in extreme conditions. First used in the special semantic space for the orderly presentation of research results parachute jumps. The monogram built in semantic fields allows to establish the frequency response range of individual heartbeats and the optimal frequency for maximum performance. On the basis of established regularities of the "reflex of readiness" assessment methodology given emotional stress, which reflects the readiness of an individual to perform a parachute jump. An objective indicator of preparedness measures is a violation of the symmetry of the flow and haptic reflex and serial dynamometry. Conclusions : in using semantic spaces reflects the flowing of reflex of biological caution and accompaniment reflex. In the basis of constructing estimates of emotional stress are the regularities of mean arterial pressure as nonspecific reactions. Measure of extent of confused is estimated by variability of accompaniment reflex. Breach of symmetry in mean arterial pressure and the amplitude - frequency response accompaniment reflex, determine the validity of staying in extreme conditions. Introduction of the measure in using semantic spaces allows by selective data to establish the overall structure of the studied process.

  10. Organization of Functional Long-Range Circuits Controlling the Activity of Serotonergic Neurons in the Dorsal Raphe Nucleus

    Directory of Open Access Journals (Sweden)

    Li Zhou

    2017-03-01

    Full Text Available Serotonergic neurons play key roles in various biological processes. However, circuit mechanisms underlying tight control of serotonergic neurons remain largely unknown. Here, we systematically investigated the organization of long-range synaptic inputs to serotonergic neurons and GABAergic neurons in the dorsal raphe nucleus (DRN of mice with a combination of viral tracing, slice electrophysiological, and optogenetic techniques. We found that DRN serotonergic neurons and GABAergic neurons receive largely comparable synaptic inputs from six major upstream brain areas. Upon further analysis of the fine functional circuit structures, we found both bilateral and ipsilateral patterns of topographic connectivity in the DRN for the axons from different inputs. Moreover, the upstream brain areas were found to bidirectionally control the activity of DRN serotonergic neurons by recruiting feedforward inhibition or via a push-pull mechanism. Our study provides a framework for further deciphering the functional roles of long-range circuits controlling the activity of serotonergic neurons in the DRN.

  11. Anabolic steroids alter the physiological activity of aggression circuits in the lateral anterior hypothalamus.

    Science.gov (United States)

    Morrison, T R; Sikes, R W; Melloni, R H

    2016-02-19

    Syrian hamsters exposed to anabolic/androgenic steroids (AAS) during adolescence consistently show increased aggressive behavior across studies. Although the behavioral and anatomical profiles of AAS-induced alterations have been well characterized, there is a lack of data describing physiological changes that accompany these alterations. For instance, behavioral pharmacology and neuroanatomical studies show that AAS-induced changes in the vasopressin (AVP) neural system within the latero-anterior hypothalamus (LAH) interact with the serotonin (5HT) and dopamine (DA) systems to modulate aggression. To characterize the electrophysiological profile of the AAS aggression circuit, we recorded LAH neurons in adolescent male hamsters in vivo and microiontophoretically applied agonists and antagonists of aggressive behavior. The interspike interval (ISI) of neurons from AAS-treated animals correlated positively with aggressive behaviors, and adolescent AAS exposure altered parameters of activity in regular firing neurons while also changing the proportion of neuron types (i.e., bursting, regular, irregular). AAS-treated animals had more responsive neurons that were excited by AVP application, while cells from control animals showed the opposite effect and were predominantly inhibited by AVP. Both DA D2 antagonists and 5HT increased the firing frequency of AVP-responsive cells from AAS animals and dual application of AVP and D2 antagonists doubled the excitatory effect of AVP or D2 antagonist administration alone. These data suggest that multiple DA circuits in the LAH modulate AAS-induced aggressive responding. More broadly, these data show that multiple neurochemical interactions at the neurophysiological level are altered by adolescent AAS exposure. Copyright © 2015 IBRO. Published by Elsevier Ltd. All rights reserved.

  12. Successful reconstruction of a physiological circuit with known connectivity from spiking activity alone.

    Directory of Open Access Journals (Sweden)

    Felipe Gerhard

    Full Text Available Identifying the structure and dynamics of synaptic interactions between neurons is the first step to understanding neural network dynamics. The presence of synaptic connections is traditionally inferred through the use of targeted stimulation and paired recordings or by post-hoc histology. More recently, causal network inference algorithms have been proposed to deduce connectivity directly from electrophysiological signals, such as extracellularly recorded spiking activity. Usually, these algorithms have not been validated on a neurophysiological data set for which the actual circuitry is known. Recent work has shown that traditional network inference algorithms based on linear models typically fail to identify the correct coupling of a small central pattern generating circuit in the stomatogastric ganglion of the crab Cancer borealis. In this work, we show that point process models of observed spike trains can guide inference of relative connectivity estimates that match the known physiological connectivity of the central pattern generator up to a choice of threshold. We elucidate the necessary steps to derive faithful connectivity estimates from a model that incorporates the spike train nature of the data. We then apply the model to measure changes in the effective connectivity pattern in response to two pharmacological interventions, which affect both intrinsic neural dynamics and synaptic transmission. Our results provide the first successful application of a network inference algorithm to a circuit for which the actual physiological synapses between neurons are known. The point process methodology presented here generalizes well to larger networks and can describe the statistics of neural populations. In general we show that advanced statistical models allow for the characterization of effective network structure, deciphering underlying network dynamics and estimating information-processing capabilities.

  13. Dealing with negative stereotypes in sports: the role of cognitive anxiety when multiple identities are activated in sensorimotor tasks.

    Science.gov (United States)

    Martiny, Sarah E; Gleibs, Ilka H; Parks-Stamm, Elizabeth J; Martiny-Huenger, Torsten; Froehlich, Laura; Harter, Anna Lena; Roth, Jenny

    2015-08-01

    Based on research on stereotype threat and multiple identities, this work explores the beneficial effects of activating a positive social identity when a negative identity is salient on women's performance in sports. Further, in line with research on the effects of anxiety in sports, we investigate whether the activation of a positive social identity buffers performance from cognitive anxiety associated with a negative stereotype. Two experiments tested these predictions in field settings. Experiment 1 (N = 83) shows that the simultaneous activation of a positive (i.e., member of a soccer team) and a negative social identity (i.e., woman) led to better performance than the activation of only a negative social identity for female soccer players. Experiment 2 (N = 46) demonstrates that identity condition moderated the effect of cognitive anxiety on performance for female basketball players. Results are discussed concerning multiple identities' potential for dealing with stressful situations.

  14. Low-Noise Active Decoupling Circuit and its Application to 13C Cryogenic RF Coils at 3T

    DEFF Research Database (Denmark)

    Sanchez, Juan Diego; Søvsø Szocska Hansen, Esben; Laustsen, Christoffer

    2017-01-01

    We analyze the loss contributions in a small, 50-mm-diameter receive-only coil for carbon-13 (13C) magnetic resonance imaging at 3 T for 3 different circuits, which, including active decoupling, are compared in terms of their Q-factors and signal-to-noise ratio (SNR). The results show that a circ......We analyze the loss contributions in a small, 50-mm-diameter receive-only coil for carbon-13 (13C) magnetic resonance imaging at 3 T for 3 different circuits, which, including active decoupling, are compared in terms of their Q-factors and signal-to-noise ratio (SNR). The results show...... that a circuit using unsegmented tuning and split matching capacitors can provide 20% SNR enhancement at room temperature compared with that using more traditional designs. The performance of the proposed circuit was also measured when cryogenically cooled to 105 K, and an additional 1.6-fold SNR enhancement...... was achieved on a phantom. The enhanced circuit performance is based on the low capacitance needed to match to 50 when coil losses are low, which significantly reduces the proportion of the current flowing through the matching network and therefore minimizes this loss contribution. This effect makes...

  15. A systematic review of the relationship between physical activities in sports or daily life and postural sway in upright stance.

    Science.gov (United States)

    Kiers, Henri; van Dieën, Jaap; Dekkers, Henk; Wittink, Harriët; Vanhees, Luc

    2013-11-01

    In many sports, maintaining balance is necessary to compete at a high level. Also, in many health problems, balance is impaired. Postural sway (PS) is often used as an indicator of upright balance control, and physical activity (PA) might enhance balance control. However, the relationship between PS and PA has never been systematically reviewed. Our objective was to summarize the evidence regarding the relationship between PS in upright bipedal and unipedal standing and PA. We conducted a literature search in MEDLINE, EmBase, CINAHL, the Cochrane Database, and PEDro, up to March 2012, with no limit on the starting date. Characteristics and methodological aspects of each article were extracted by two reviewers. We used centre of pressure (CoP) velocity, and variables related to the CoP area, to compare studies. A total of 39 articles were reviewed from an initial yield of 2,058. Of these 39 studies, 37 used a comparative design, one was a cohort study, and one was a randomized controlled trial. The main conclusion was that in general, sport practitioners sway less than controls, and high-level athletes sway less than low-level athletes. Additionally, we identified specific effects dependent on the use of vision, sport-specific postures, and frequency and duration of the (sports) activity. PS in unperturbed bipedal stance appears to have limited sensitivity to detect subtle differences between groups of healthy people.

  16. Sport promotion in USA and Europe

    Directory of Open Access Journals (Sweden)

    Ognjenov Gajina

    2002-01-01

    Full Text Available Promotion as most viewable marketing activity is in sports for years. Many companies invest lots of funds for promotion of sport. Investing funds in sports they can promote their companies. This is called sponsorship.

  17. A clinical observational study on patient-reported outcomes, hip functional performance and return to sports activities in hip arthroscopy patients

    NARCIS (Netherlands)

    Tijssen, M.P.W.; Cingel, R.E. van; Visser, E de; Nijhuis-Van der Sanden, M.W.G.

    2016-01-01

    OBJECTIVES: To describe data of short- and midterm results of hip arthroscopy patients based on patient-reported hip function, hip functional performance and return to sports activities. DESIGN: Observational cohort study. SETTING: Sports medical center. PARTICIPANTS: 37 recreational athletes (21

  18. GOES-R Proving Ground Activities at the NASA Short-Term Prediction Research and Transition (SPoRT) Center

    Science.gov (United States)

    Molthan, Andrew

    2011-01-01

    SPoRT is actively involved in GOES-R Proving Ground activities in a number of ways: (1) Applying the paradigm of product development, user training, and interaction to foster interaction with end users at NOAA forecast offices national centers. (2) Providing unique capabilities in collaboration with other GOES-R Proving Ground partners (a) Hybrid GOES-MODIS imagery (b) Pseudo-GLM via regional lightning mapping arrays (c) Developing new RGB imagery from EUMETSAT guidelines

  19. Physical activity patterns across time-segmented youth sport flag football practice.

    Science.gov (United States)

    Schlechter, Chelsey R; Guagliano, Justin M; Rosenkranz, Richard R; Milliken, George A; Dzewaltowski, David A

    2018-02-08

    Youth sport (YS) reaches a large number of children world-wide and contributes substantially to children's daily physical activity (PA), yet less than half of YS time has been shown to be spent in moderate-to-vigorous physical activity (MVPA). Physical activity during practice is likely to vary depending on practice structure that changes across YS time, therefore the purpose of this study was 1) to describe the type and frequency of segments of time, defined by contextual characteristics of practice structure, during YS practices and 2) determine the influence of these segments on PA. Research assistants video-recorded the full duration of 28 practices from 14 boys' flag football teams (2 practices/team) while children concurrently (N = 111, aged 5-11 years, mean 7.9 ± 1.2 years) wore ActiGraph GT1M accelerometers to measure PA. Observers divided videos of each practice into continuous context time segments (N = 204; mean-segments-per-practice = 7.3, SD = 2.5) using start/stop points defined by change in context characteristics, and assigned a value for task (e.g., management, gameplay, etc.), member arrangement (e.g., small group, whole group, etc.), and setting demand (i.e., fosters participation, fosters exclusion). Segments were then paired with accelerometer data. Data were analyzed using a multilevel model with segment as unit of analysis. Whole practices averaged 34 ± 2.4% of time spent in MVPA. Free-play (51.5 ± 5.5%), gameplay (53.6 ± 3.7%), and warm-up (53.9 ± 3.6%) segments had greater percentage of time (%time) in MVPA compared to fitness (36.8 ± 4.4%) segments (p ≤ .01). Greater %time was spent in MVPA during free-play segments compared to scrimmage (30.2 ± 4.6%), strategy (30.6 ± 3.2%), and sport-skill (31.6 ± 3.1%) segments (p ≤ .01), and in segments that fostered participation (36.1 ± 2.7%) than segments that fostered exclusion (29.1 ± 3.0%; p ≤ .01

  20. Spinal injury in sport

    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.

  1. Spinal injury in sport

    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

  2. Impact of Active Leisure (Noncompetitive) Contact Sports Activities on the Space Available for the Cord of the Subaxial Cervical Spine of Asymptomatic Adults.

    Science.gov (United States)

    Ndubuisi, Chika A; Ohaegbulam, Samuel C; Mezue, Wilfred C

    2017-12-01

    Leisure sports activities are assumed to be safe. It is however possible that participation in contact sports as leisure activity may also affect the space available for the cervical cord (SAC). The objective of this study is to compare the SAC of asymptomatic young adults involved in active leisure contact sports with matched controls that do not participate in contact sports. This magnetic resonance imaging-based prospective, cross-sectional study involved 204 randomly selected asymptomatic adults, 21-50 years of age. The study included 2 groups: group A (participants in active leisure contact sports) and group B (participants who did not participate in any form of contact sport). The SAC was calculated by subtracting disk-level midsagittal spinal canal dimension from the corresponding level spinal cord dimension. The SAC at C3-4 was 4.5 ± 1.1 mm (group A) and 4.9 ± 1.4 mm (group B) (P = 0.025), at C4-5 was 4.3 ± 1.1 mm (group A) and 4.5 ± 1.2 mm (group B), at C5-6 was 4.6 ± 1.1 mm (group A) and 4.5 ± 1.4 mm (group B), at C6-7 was 5.2 ± 1.3 mm (group A) and 4.9 ± 1.2 mm (group B), at C7-T1 was 5.6 ± 1.3 mm (group A) and 5.6 ± 1.5 mm (group B) (P = 0.004). In men, the SAC at C3-4 was 4.39 ± 0.28 mm (group A) and 4.90 ± 0.30 mm (group B) (P = 0.036) and at C4-5 was 4.16 ± 0.27 mm (group A) and 4.56 ± 0.35 mm (group B). Three-way multivariate analysis of variance revealed significant effect of contact sports (P = 0.005), sex (P = 0.001), and age (P = 0.0001) on the SAC. Combined effect of contact sports participation and age also have significant effects on the SAC (P = 0.035). Participation in leisure contact sports has a small but overall negative effect on the SAC, especially at the upper subaxial cervical spine levels. This effect is most marked after the age of 40 years. Overall, there was no sex difference observed. Copyright © 2017 Elsevier Inc. All rights reserved.

  3. SPORT MARKETING

    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.

  4. The Electron Runaround: Understanding Electric Circuit Basics through a Classroom Activity

    Science.gov (United States)

    Singh, Vandana

    2010-01-01

    Several misconceptions abound among college students taking their first general physics course, and to some extent pre-engineering physics students, regarding the physics and applications of electric circuits. Analogies used in textbooks, such as those that liken an electric circuit to a piped closed loop of water driven by a water pump, do not…

  5. Leisure-time Physical Activity and Sedentary Behaviour in Older People: The Influence of Sport Involvement on Behaviour Patterns in Later Life

    Directory of Open Access Journals (Sweden)

    Amy M. Gayman

    2017-05-01

    Full Text Available Given the dramatic demographic change underway in most industrialized nations, the health of older adults is a major concern, particularly given the prevalence of sedentary behaviours and physical inactivity among ageing populations. Researchers have suggested sport participation in later life promotes other health-related behaviours, however, these relationships are poorly understood. It is possible for individuals to be classified as sufficiently active and still spend most of their day involved in sedentary pursuits. Moreover, there is little information on older sport participants’ use of time compared to leisurely active or inactive peers and whether type of physical activity involvement is associated with differences in older adults’ behaviour patterns. With this in mind, data from 1,723 respondents (65 years and older who completed the sport module of the 2010 Canadian General Social Survey–Time Use were used to investigate the influence of physical activity involvement (competitive sport vs. non-competitive sport vs. physically active leisure vs. inactivity on time spent in leisure-time physical activity and sedentary behaviours. Results indicated that competitive sport participants spent less time engaging in sedentary behaviours compared to the physically active leisure or inactive respondents; however, sport participants (both competitive and non-competitive also spent less time engaging in leisure-time physical activities than the physically active leisure group. Implications of these findings to assumptions related to the activity levels of older sport participants, suggestions for future research, and considerations for sport-related interventions aimed at enhancing health in older adulthood are discussed.

  6. Comparing return to sport activities after short metaphyseal femoral arthroplasty with resurfacing and big femoral head arthroplasties.

    Science.gov (United States)

    Karampinas, Panagiotis K; Papadelis, Eustratios G; Vlamis, John A; Basiliadis, Hlias; Pneumaticos, Spiros G

    2017-07-01

    Young patients feel that maintaining sport activities after total hip arthroplasty constitutes an important part of their quality of life. The majority of hip surgeons allow patients to return to low-impact activities, but significant caution is advised to taking part in high-impact activities. The purpose of this study is to compare and evaluate the post-operative return to daily living habits and sport activities following short-metaphyseal hip and high functional total hip arthroplasties (resurfacing and big femoral head arthroplasties). In a study design, 48 patients (55 hips) were enrolled in three different comparative groups, one with the short-metaphyseal arthroplasties, a second with high functional resurfacing arthroplasties and a third of big femoral head arthroplasties. Each patient experienced a clinical examination and evaluated with Harris Hip Score, WOMAC, Sf-36, UCLA activity score, satisfaction VAS, anteroposterior and lateral X-rays of the hip and were followed in an outpatient setting for 2 years. Statistical analysis revealed no notable differences between the three groups regarding their demographic data however significant differences have been found between preoperative and postoperative clinical scores of each group. Also, we fail to reveal any significant differences when comparing data of all three groups at the final 2 years postoperative control regarding their clinical scores. The overall outcome of all three groups was similar, all the patients were satisfied and returned to previous level of sport activities. Short metaphyseal hip arthroplasties in young patients intending to return to previous and even high impact sport activities, similar to high functional resurfacing, big femoral head arthroplasties. Short stems with hard on hard bearing surfaces might become an alternative to standard stems and hip resurfacing.

  7. Determinants of sports, cycling, walking and overall leisure-time physical activity among postmenopausal women in Germany.

    Science.gov (United States)

    Steindorf, Karen; Chang-Claude, Jenny; Flesch-Janys, Dieter; Schmidt, Martina E

    2010-11-01

    Convincing evidence exists for a beneficial effect of physical activity (PA) on health and well-being for elderly women. Nevertheless, many women in Germany are insufficiently physically active. Activity promotion programmes should target women in particular need. Thus, we examined subject-related determinants of PA for postmenopausal women in Germany. Associations of sociodemographic, anthropometric, lifestyle and health-related factors with activity since the age of 50 years were assessed with multiple linear and logistic regression models, regarding overall leisure-time PA (LPA) in metabolic equivalent hours per week, engagement in sports (ever v. never), cycling (yes v. no) and walking (≥3·5 v. sports, cycling and walking in postmenopausal years with several characteristics, among others: obese v. normal BMI (adjusted OR: ORsports = 0·73; ORcycling = 0·60; ORwalking = 0·63), tall v. short (ORsports = 1·49), worker v. medium employee (ORsports = 0·47), working full time v. unemployed/retired (ORsports = 0·80; ORwalking = 0·56), current v. non-smoker (ORsports = 0·62; ORcycling = 0·62; ORwalking = 0·82), non-German nationality (ORsports = 0·58; ORcycling = 0·41). Parity seemed more relevant than marital status for sports or cycling activity. Further, CVD, hypertension and diabetes were significantly associated with lower activity (ORsports = 0·77, 0·79 and 0·80; ORcycling = 0·80, 0·75 and 0·85, respectively). Our results suggest potential target groups for promoting sports, cycling or walking activity. Postmenopausal women with chronic diseases may need to be stronger encouraged by their physicians to engage in adequate PA for the management of their diseases.

  8. THE SPORT MARKETING MANAGEMENT MODEL

    Directory of Open Access Journals (Sweden)

    Alexandru Lucian MIHAI

    2015-06-01

    Full Text Available Sport marketing involves marketing fundamentals applied in one industry, the sport business industry. The development of sport marketing fundamentals is therefore based on basic marketing principles. The practice and activities of sport marketing are also based on basic marketing activities, but are modified and adapted to the sport business industry. Therefore, sport marketing is based on its primary and parent discipline - marketing. Sport marketing is one of the most important functions of a sport business. This is because the sport marketing activities will define the business. The growth of the sport industry is phenomenal and shows no signs of slowing. Also, sport marketing is a process. A process is a continuous cycle. Therefore, marketing is a function that never ends. The sport marketing management model is an illustration of the elements and process of sport marketing. It should serve as a guide for managing the company’s marketing functions. The model illustrates the elements of marketing, the succession of elements and functions, the process of managing, and the interdependence of the elements This paper presents an overview of the model, sport marketing management, each element and the process.

  9. On-chip active gate bias circuit for MMIC amplifier applications with 100% threshold voltage variation compensation

    NARCIS (Netherlands)

    Hek, A.P. de; Busking, E.B.

    2006-01-01

    In this paper the design and performance of an on-chip active gate bias circuit for application in MMIC amplifiers, which gives 100% compensation for threshold variation and at the same time is insensitive to supply voltage variations, is discussed. Design equations have been given. In addition, the

  10. Optimized circuit design for flexible 8-bit RFID transponders with active layer of ink-jet printed small molecule semiconductors

    NARCIS (Netherlands)

    Kjellander, B.K.C.; Smaal, W.T.T.; Myny, K.; Genoe, J.; Dehaene, W.; Heremans, P.; Gelinck, G.H.

    2013-01-01

    We ink-jet print a blend of 6,13-bis(triisopropyl-silylethynyl)pentacene and polystyrene as the active layer for flexible circuits. The discrete ink-jet printed transistors exhibit a saturation mobility of 0.5 cm2 V -1 s-1. The relative spread in transistor characteristics can be very large. This

  11. Altered regional and circuit resting-state activity associated with unilateral hearing loss.

    Directory of Open Access Journals (Sweden)

    Xingchao Wang

    Full Text Available The deprivation of sensory input after hearing damage results in functional reorganization of the brain including cross-modal plasticity in the sensory cortex and changes in cognitive processing. However, it remains unclear whether partial deprivation from unilateral auditory loss (UHL would similarly affect the neural circuitry of cognitive processes in addition to the functional organization of sensory cortex. Here, we used resting-state functional magnetic resonance imaging to investigate intrinsic activity in 34 participants with UHL from acoustic neuroma in comparison with 22 matched normal controls. In sensory regions, we found decreased regional homogeneity (ReHo in the bilateral calcarine cortices in UHL. However, there was an increase of ReHo in the right anterior insular cortex (rAI, the key node of cognitive control network (CCN and multimodal sensory integration, as well as in the left parahippocampal cortex (lPHC, a key node in the default mode network (DMN. Moreover, seed-based resting-state functional connectivity analysis showed an enhanced relationship between rAI and several key regions of the DMN. Meanwhile, lPHC showed more negative relationship with components in the CCN and greater positive relationship in the DMN. Such reorganizations of functional connectivity within the DMN and between the DMN and CCN were confirmed by a graph theory analysis. These results suggest that unilateral sensory input damage not only alters the activity of the sensory areas but also reshapes the regional and circuit functional organization of the cognitive control network.

  12. Sport and Physics

    Directory of Open Access Journals (Sweden)

    Leopold Mathelitsch

    2017-04-01

    Full Text Available The combination of sport and physics offers several attractive ingredients for teaching physics, at primary, secondary, as well as university level. These cover topics like interdisciplinary teaching, sports activities as physics experiments, video analysis or modeling. A variety of examples are presented that should act as stimulus, accompanied by a list of references that should support the implementation of sport topics into physics teaching.

  13. An Examination of Reciprocal Influences in Sport Socialization

    OpenAIRE

    海老原, 修; 横山, 文人; 宮下, 充正

    1989-01-01

    This study was designed to clarify reciprocal influences in sport socialization. Parent-effects were assessed by their sport involvement before their child participated in organized sport, whereas child-effects were measured by a parent's attitudinal and behavioral changes of sport involvement caused by a child's participation. Eight indicators of sport involvement were selected as follows: 3 types of interest in sport involvement such as activities, sport consumption, and sport activity in o...

  14. [Present-day sports activities among the blind and persons with poor vision in different countries of the world].

    Science.gov (United States)

    Talmachev, R A

    2003-01-01

    The approach of a country to persons with limited physical abilities is an important component of country's social-and-cultural policy. Blindness is a most severe variety of health disorders leading to social defect and social insufficiency. The role of adaptive physical culture is important within the system of the social-and-medical rehabilitation of the blind because the sedentary life mode has a negative effect on organisms of the disabled due to vision. Sports is not only a method for correcting the general somatic condition, but it is also an important social-and-physiological factor that enables the blind to comprehend their abilities as an example for others. As for our country, the information about the modern sports activities among the disabled due to vision is absolutely insufficient for the public at large. An analysis of results of examination (conducted by using the computer data base of the International Blind Sportsmen Association--IBSA) of 2386 blind and impaired vision sportsmen is presented in the paper. Data about sport disciplines and types of ophthalmic pathologies encountered among the high-class blind and impaired vision athletes from different world countries are described. The above data can be helpful in elaborating the rehabilitation programs for persons with severe disorders of the organ of vision to be used in rehabilitation centers, sport federations and clubs of the disabled as well as in other institutions dealing with rehabilitation of the disabled due to vision in our country.

  15. Akademickie Związki Sportowe jako droga do rozwoju aktywności sportowej wśród studentów śląskich uczelni = University Sports Association as the way to sport activity development among Silesian students

    Directory of Open Access Journals (Sweden)

    Anna Mędrak

    2015-11-01

    Abstract Introduction. There are two fundaments of healthy lifestyle philosophy: regular physical activity and proper diet. The development of physical activity among students is determined by many complex factors. We can distinguish certain aspects such as university profile, access to the sport facilities and the opportunity to participate in sport activities which are organized by sport clubs or University Sports Association. The aim of the study. The aim of the study was to analyze the factors that affect self-assessment of students physical activity. The following questions have been asked: 1.Is the choice of the university related to the access to sport activities which are organized by University Sport Association? 2.Does the participating in activities, which are organized by University Sport Association, help in physical development? 3.Is there any relation between the location, time, type, the way of sport activities which are offered by University Sport Association and participating in them? Material and methods. 395 students took part in research: 257 women (18-27 years old (x=20,7 ; SD=1,4 and 108 men (18-26 years old (x=21; SD=1,45. All the students are from five Silesian universities. Method used for the research was the anonymous questionnaire consisting of 37 questions which concerned: the way of the physical activity taken by students, the issue of University Sport Association and the influence of the university profile on physical activity development. The Likert scale was used in 21 questions. Statistical description included descriptive statistics. Degree of difference was defined by ANOVA analysis. Results. Descriptive analysis showed significant dependence between the type of the university and the location of sport facilities (p=0,04. The type of the university has no influence on the factors like: time (p=0,07 and type of sport activities offered by University Sport Association (p=0,39. There is also an important connection between the type

  16. Curtailing effect of awakening on visual responses of cortical neurons by cholinergic activation of inhibitory circuits.

    Science.gov (United States)

    Kimura, Rui; Safari, Mir-Shahram; Mirnajafi-Zadeh, Javad; Kimura, Rie; Ebina, Teppei; Yanagawa, Yuchio; Sohya, Kazuhiro; Tsumoto, Tadaharu

    2014-07-23

    Visual responsiveness of cortical neurons changes depending on the brain state. Neural circuit mechanism underlying this change is unclear. By applying the method of in vivo two-photon functional calcium imaging to transgenic rats in which GABAergic neurons express fluorescent protein, we analyzed changes in visual response properties of cortical neurons when animals became awakened from anesthesia. In the awake state, the magnitude and reliability of visual responses of GABAergic neurons increased whereas the decay of responses of excitatory neurons became faster. To test whether the basal forebrain (BF) cholinergic projection is involved in these changes, we analyzed effects of electrical and optogenetic activation of BF on visual responses of mouse cortical neurons with in vivo imaging and whole-cell recordings. Electrical BF stimulation in anesthetized animals induced the same direction of changes in visual responses of both groups of neurons as awakening. Optogenetic activation increased the frequency of visually evoked action potentials in GABAergic neurons but induced the delayed hyperpolarization that ceased the late generation of action potentials in excitatory neurons. Pharmacological analysis in slice preparations revealed that photoactivation-induced depolarization of layer 1 GABAergic neurons was blocked by a nicotinic receptor antagonist, whereas non-fast-spiking layer 2/3 GABAergic neurons was blocked only by the application of both nicotinic and muscarinic receptor antagonists. These results suggest that the effect of awakening is mediated mainly through nicotinic activation of layer 1 GABAergic neurons and mixed nicotinic/muscarinic activation of layer 2/3 non-fast-spiking GABAergic neurons, which together curtails the visual responses of excitatory neurons. Copyright © 2014 the authors 0270-6474/14/3410122-12$15.00/0.

  17. Reliability and validity of Yo-Yo tests in 9- to 16-year-old football players and matched non-sports active schoolboys

    DEFF Research Database (Denmark)

    Póvoas, Susana C A; Castagna, Carlo; Soares, José M C

    2016-01-01

    The purpose of this study was to examine the test-retest reliability and construct validity of three age-adapted Yo-Yo intermittent tests in football players aged 9-16 years (n = 70) and in age-matched non-sports active boys (n = 72). Within 7 days, each participant performed two repetitions...... performances and HRpeak are reliable for 9- to 16-year-old footballers and non-sports active boys. Additionally, performances of the three Yo-Yo tests were seemingly better for football-trained than for non-sports active boys, providing evidence of construct validity....

  18. The effects of adolescence sports and exercise on adulthood leisure-time physical activity in educational groups

    Directory of Open Access Journals (Sweden)

    Rahkonen Ossi

    2010-04-01

    Full Text Available Abstract Background Physical inactivity has become a major public health problem and clear educational differences in physical activity have been reported across Europe and USA. The origins of adulthood physical activity are suggested to be in childhood and adolescence physical activity. Hardly any studies have, however, examined if the educational differences in physical activity might also be due to educational differences in early experiences in physical activity. Thus, our aim was to examine how competitive sports in youth, and exercise in late adolescence, and opinions on physical education (PE in childhood determined adulthood leisure-time physical activity (LTPA in different educational groups. Methods We used cross-sectional population-based National FINRISK 2002 data for 1918 men and 2490 women aged 25 to 64 years. Competitive sports in youth, exercise in late adolescence, and opinions on PE in childhood were assessed retrospectively via self-reports. Adulthood LTPA was collected with 12-month recall. In 2008, we calculated structural equation models including latent variables among the low- ( Results Men more often than women reported that their experience of PE was interesting and pleasant as well as having learned useful skills during PE classes. Men, compared to women, had also been more active in the three selected competitive sports in youth and exercised in late adolescence. Participation in competitive sports in youth among the low-educated and exercise in late adolescence among the high-educated had a direct effect on adulthood LTPA. Among the low-educated, opinions on PE in childhood had an indirect effect on adulthood LTPA through participation in competitive sports in youth whereas among the high-educated, the indirect effect went through exercise in late adolescence. The effects were mainly similar between genders. Conclusions Our study answers to a strong need to assess the determinants of leisure-time physical activity to

  19. Physical activity levels during youth sport practice: does coach training or experience have an influence?

    Science.gov (United States)

    Schlechter, Chelsey R; Rosenkranz, Richard R; Milliken, George A; Dzewaltowski, David A

    2017-01-01

    This study examined moderate-to-vigorous physical activity (MVPA) levels in youth during flag football practice and compared youth MVPA in practices led by trained or untrained, and by experienced or inexperienced, coaches. Boys (n = 111, mean age = 7.9 ± 1.2 years) from 14 recreation-level flag football teams wore an accelerometer during two practices. Each team's volunteer head coach reported prior training and coaching experience. Mixed-model team-adjusted means showed the proportion of practice time spent in sedentary (13 ± 1%), MVPA (34 ± 2%) and vigorous (12 ± 1%) activity. Practice contributed ~20 min of MVPA towards public health guidelines. There was no significant difference in percentage time spent in MVPA between teams with trained (mean = 33.3%, 95% CI = 29.4%, 37.2%) and untrained coaches (mean = 35.9%, 95% CI = 25.5%, 42.4%) or between experienced (mean = 34.1%, 95% CI = 30.2%, 38.0%) and inexperienced coaches (mean = 33.8, 95% CI = 27.9%, 39.7%). Although sport provides a setting for youth to accrue MVPA, two-thirds of practice was spent sedentarily or in light activity. Participation in a coach training programme was not associated with higher MVPA. Further research is needed to inform volunteer coach training programmes that provide coaches with skills necessary to increase the percentage of practice time spent in MVPA.

  20. Sedentary lifestyle in active children admitted to a summer sport school.

    Science.gov (United States)

    Fainardi, Valentina; Scarabello, Chiara; Brunella, Iovane; Errico, Maria Katrin; Mele, Alessandra; Gelmetti, Chiara; Sponzilli, Ivonne; Chiari, Giovanni; Volta, Elio; Vitale, Marco; Vanelli, Maurizio

    2009-08-01

    Aim of this study was to investigate the sedentary patterns of school-aged active children admitted to a summer sport school. One hundred-twelve children aged 9-11 years were interviewed through a questionnaire about sedentary behaviours and nutrition habits. Seventy-one per cent of children reported they watch TV seven days a week, girls less than boys (84 +/- 45 minutes vs. 110 +/- 75 minutes) (t = 2.056; p = 0.042). The habit of TV viewing during meals was widespread (38% breakfast, 31% lunch, 62% dinner, 18% every meal). The prevalence of overweight or obesity (58.5%) was significantly higher among boys watching TV at dinner compared to the boys viewing TV only in the afternoon (35%) (chi2 = 4.976; p = 0.026). Fifty-seven per cent of children (65% boys) were accustomed to nibble snacks during TV viewing, and this habit was widespread in overweight or obese boys (chi2 = 4.546; p = 0.033). The dietary patterns of children watching TV include more snack foods and fewer fruits than the dietary patterns of the same children exercising (chi2 = 4.199 p = 0.040). Also in active children the habit to watch television is widespread and, in spite of the tendency to physical activity, 46% of them were overweight or obese; in fact the time spent looking at a TV may be associated to overweight/obesity and this relationship could be explained by the amount of high-density foods consumption during inactivity. Playing video games, read a book and listening to music are sedentary lifestyle patterns but these seem not to represent a risk factor for an increased BMI.

  1. State of development of sport and technical and applied sports in the sports organizations of Ukraine

    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.

  2. Direct and indirect associations between the family physical activity environment and sports participation among 10-12 year-old European children: testing the EnRG framework in the ENERGY project

    NARCIS (Netherlands)

    Timperio, A.F.; van Stralen, M.M.; Brug, J.; Bere, E.; Chinapaw, M.J.; de Bourdeaudhuij, I.; Maes, L.; Manios, Y.; Moreno, L.A.; Salmon, J.; te Velde, S.J.

    2013-01-01

    Background: Sport participation makes an important contribution to children's overall physical activity. Understanding influences on sports participation is important and the family environment is considered key, however few studies have explored the mechanisms by which the family environment

  3. Inward-rectifying potassium (Kir) channels regulate pacemaker activity in spinal nociceptive circuits during early life

    Science.gov (United States)

    Li, Jie; Blankenship, Meredith L.; Baccei, Mark L.

    2013-01-01

    Pacemaker neurons in neonatal spinal nociceptive circuits generate intrinsic burst-firing and are distinguished by a lower “leak” membrane conductance compared to adjacent, non-bursting neurons. However, little is known about which subtypes of leak channels regulate the level of pacemaker activity within the developing rat superficial dorsal horn (SDH). Here we demonstrate that a hallmark feature of lamina I pacemaker neurons is a reduced conductance through inward-rectifying potassium (Kir) channels at physiological membrane potentials. Differences in the strength of inward rectification between pacemakers and non-pacemakers indicate the presence of functionally distinct Kir currents in these two populations at room temperature. However, Kir currents in both groups showed high sensitivity to block by extracellular Ba2+ (IC50 ~ 10 µM), which suggests the presence of ‘classical’ Kir (Kir2.x) channels in the neonatal SDH. The reduced Kir conductance within pacemakers is unlikely to be explained by an absence of particular Kir2.x isoforms, as immunohistochemical analysis revealed the expression of Kir2.1, Kir2.2 and Kir2.3 within spontaneously bursting neurons. Importantly, Ba2+ application unmasked rhythmic burst-firing in ~42% of non-bursting lamina I neurons, suggesting that pacemaker activity is a latent property of a sizeable population of SDH cells during early life. In addition, the prevalence of spontaneous burst-firing within lamina I was enhanced in the presence of high internal concentrations of free Mg2+, consistent with its documented ability to block Kir channels from the intracellular side. Collectively, the results indicate that Kir channels are key modulators of pacemaker activity in newborn central pain networks. PMID:23426663

  4. Development of a measurement approach to assess time children participate in organized sport, active travel, outdoor active play, and curriculum-based physical activity.

    Science.gov (United States)

    Borghese, Michael M; Janssen, Ian

    2018-03-22

    Children participate in four main types of physical activity: organized sport, active travel, outdoor active play, and curriculum-based physical activity. The objective of this study was to develop a valid approach that can be used to concurrently measure time spent in each of these types of physical activity. Two samples (sample 1: n = 50; sample 2: n = 83) of children aged 10-13 wore an accelerometer and a GPS watch continuously over 7 days. They also completed a log where they recorded the start and end times of organized sport sessions. Sample 1 also completed an outdoor time log where they recorded the times they went outdoors and a description of the outdoor activity. Sample 2 also completed a curriculum log where they recorded times they participated in physical activity (e.g., physical education) during class time. We describe the development of a measurement approach that can be used to concurrently assess the time children spend participating in specific types of physical activity. The approach uses a combination of data from accelerometers, GPS, and activity logs and relies on merging and then processing these data using several manual (e.g., data checks and cleaning) and automated (e.g., algorithms) procedures. In the new measurement approach time spent in organized sport is estimated using the activity log. Time spent in active travel is estimated using an existing algorithm that uses GPS data. Time spent in outdoor active play is estimated using an algorithm (with a sensitivity and specificity of 85%) that was developed using data collected in sample 1 and which uses all of the data sources. Time spent in curriculum-based physical activity is estimated using an algorithm (with a sensitivity of 78% and specificity of 92%) that was developed using data collected in sample 2 and which uses accelerometer data collected during class time. There was evidence of excellent intra- and inter-rater reliability of the estimates for all of these types of

  5. Sport-related concussions

    Directory of Open Access Journals (Sweden)

    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.

  6. Oscillator circuits

    CERN Document Server

    Graf, Rudolf F

    1996-01-01

    This series of circuits provides designers with a quick source for oscillator circuits. Why waste time paging through huge encyclopedias when you can choose the topic you need and select any of the specialized circuits sorted by application?This book in the series has 250-300 practical, ready-to-use circuit designs, with schematics and brief explanations of circuit operation. The original source for each circuit is listed in an appendix, making it easy to obtain additional information.Ready-to-use circuits.Grouped by application for easy look-up.Circuit source listing

  7. Measuring circuits

    CERN Document Server

    Graf, Rudolf F

    1996-01-01

    This series of circuits provides designers with a quick source for measuring circuits. Why waste time paging through huge encyclopedias when you can choose the topic you need and select any of the specialized circuits sorted by application?This book in the series has 250-300 practical, ready-to-use circuit designs, with schematics and brief explanations of circuit operation. The original source for each circuit is listed in an appendix, making it easy to obtain additional information.Ready-to-use circuits.Grouped by application for easy look-up.Circuit source listings

  8. Sport and male sexuality.

    Science.gov (United States)

    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.

  9. Methods for the prediction and achievement of a low circuit activity

    International Nuclear Information System (INIS)

    Faircloth, R.; Knowles, A.N.

    1975-10-01

    While there are about 60,000 fuel pins in the core of an LWR power station, in a comparable HTR there would be over 10 10 coated particles. This five orders of magnitude disparity in the number of basic fission product retaining units has led to important differences in the approach to the prediction and achievement of a low circuit activity. With the HTR, the very large number of units requires statistical treatment of the failure mechanisms involved in the escape of key fission products from the particles and in the assessment of the distribution in the core of burnup, dose and temperature. The methods created to deal with these factors have proved to be very powerful, leading to a situation in which the distribution of fission products within the core and the probability of experiencing a given release are better known for the HTR than for the metal clad fuel of other thermal systems. This advantage has been exploited and reinforced in the UK studies, first by the development of the technology of particle design (a combination of irradiation testing and theoretical analysis) and second by refining the study of fission product movement. This is a continuing process, but already it has usefully illuminated several aspects of design and operation, ranging from the specification and quality control of the fuel itself to the philosophy of outer containments. This paper is intended to summarise this progress, the account being mainly concerned with normal operation. (author)

  10. Plasticity during Sleep Is Linked to Specific Regulation of Cortical Circuit Activity

    Directory of Open Access Journals (Sweden)

    Niels Niethard

    2017-09-01

    Full Text Available Sleep is thought to be involved in the regulation of synaptic plasticity in two ways: by enhancing local plastic processes underlying the consolidation of specific memories and by supporting global synaptic homeostasis. Here, we briefly summarize recent structural and functional studies examining sleep-associated changes in synaptic morphology and neural excitability. These studies point to a global down-scaling of synaptic strength across sleep while a subset of synapses increases in strength. Similarly, neuronal excitability on average decreases across sleep, whereas subsets of neurons increase firing rates across sleep. Whether synapse formation and excitability is down or upregulated across sleep appears to partly depend on the cell’s activity level during wakefulness. Processes of memory-specific upregulation of synapse formation and excitability are observed during slow wave sleep (SWS, whereas global downregulation resulting in elimination of synapses and decreased neural firing is linked to rapid eye movement sleep (REM sleep. Studies of the excitation/inhibition balance in cortical circuits suggest that both processes are connected to a specific inhibitory regulation of cortical principal neurons, characterized by an enhanced perisomatic inhibition via parvalbumin positive (PV+ cells, together with a release from dendritic inhibition by somatostatin positive (SOM+ cells. Such shift towards increased perisomatic inhibition of principal cells appears to be a general motif which underlies the plastic synaptic changes observed during sleep, regardless of whether towards up or downregulation.

  11. Dextromethorphan mediated bitter taste receptor activation in the pulmonary circuit causes vasoconstriction.

    Science.gov (United States)

    Upadhyaya, Jasbir D; Singh, Nisha; Sikarwar, Anurag S; Chakraborty, Raja; Pydi, Sai P; Bhullar, Rajinder P; Dakshinamurti, Shyamala; Chelikani, Prashen

    2014-01-01

    Activation of bitter taste receptors (T2Rs) in human airway smooth muscle cells leads to muscle relaxation and bronchodilation. This finding led to our hypothesis that T2Rs are expressed in human pulmonary artery smooth muscle cells and might be involved in regulating the vascular tone. RT-PCR was performed to reveal the expression of T2Rs in human pulmonary artery smooth muscle cells. Of the 25 T2Rs, 21 were expressed in these cells. Functional characterization was done by calcium imaging after stimulating the cells with different bitter agonists. Increased calcium responses were observed with most of the agonists, the largest increase seen for dextromethorphan. Previously in site-directed mutational studies, we have characterized the response of T2R1 to dextromethorphan, therefore, T2R1 was selected for further analysis in this study. Knockdown with T2R1 specific shRNA decreased mRNA levels, protein levels and dextromethorphan-induced calcium responses in pulmonary artery smooth muscle cells by up to 50%. To analyze if T2Rs are involved in regulating the pulmonary vascular tone, ex vivo studies using pulmonary arterial and airway rings were pursued. Myographic studies using porcine pulmonary arterial and airway rings showed that stimulation with dextromethorphan led to contraction of the pulmonary arterial and relaxation of the airway rings. This study shows that dextromethorphan, acting through T2R1, causes vasoconstrictor responses in the pulmonary circuit and relaxation in the airways.

  12. Dextromethorphan mediated bitter taste receptor activation in the pulmonary circuit causes vasoconstriction.

    Directory of Open Access Journals (Sweden)

    Jasbir D Upadhyaya

    Full Text Available Activation of bitter taste receptors (T2Rs in human airway smooth muscle cells leads to muscle relaxation and bronchodilation. This finding led to our hypothesis that T2Rs are expressed in human pulmonary artery smooth muscle cells and might be involved in regulating the vascular tone. RT-PCR was performed to reveal the expression of T2Rs in human pulmonary artery smooth muscle cells. Of the 25 T2Rs, 21 were expressed in these cells. Functional characterization was done by calcium imaging after stimulating the cells with different bitter agonists. Increased calcium responses were observed with most of the agonists, the largest increase seen for dextromethorphan. Previously in site-directed mutational studies, we have characterized the response of T2R1 to dextromethorphan, therefore, T2R1 was selected for further analysis in this study. Knockdown with T2R1 specific shRNA decreased mRNA levels, protein levels and dextromethorphan-induced calcium responses in pulmonary artery smooth muscle cells by up to 50%. To analyze if T2Rs are involved in regulating the pulmonary vascular tone, ex vivo studies using pulmonary arterial and airway rings were pursued. Myographic studies using porcine pulmonary arterial and airway rings showed that stimulation with dextromethorphan led to contraction of the pulmonary arterial and relaxation of the airway rings. This study shows that dextromethorphan, acting through T2R1, causes vasoconstrictor responses in the pulmonary circuit and relaxation in the airways.

  13. Physical Activity-Related Injury Profile in Children and Adolescents According to Their Age, Maturation, and Level of Sports Participation.

    Science.gov (United States)

    Costa E Silva, Lara; Fragoso, Maria Isabel; Teles, Júlia

    Physical activity (PA) is beneficial, enhancing healthy development. However, one-third of school-age children practicing sports regularly suffer from an injury. These injuries are associated with sex, chronological age, and PA level. To identify the importance of age, PA level, and maturity as predictors of injury in Portuguese youth. Descriptive epidemiological study. Level 3. Information about injury and PA level was assessed via 2 questionnaires (LESADO RAPIL II) from 647 subjects aged 10 to 17 years. Maturity offset according to Mirwald (time before or after peak height velocity) and Tanner-Whitehouse III bone age estimates were used to evaluate maturation. Binary logistic regression and gamma regression were used to determine significant predictors of injury and injury rate. Injury occurrence was higher for both sexes in recreational, school, and federated athletes (athletes engaged in sports that are regulated by their respective federations, with formal competition). These injuries also increased with age in boys and in the higher maturity offset group in girls. Injury rate was higher for both sexes in the no sports participation group. Early-maturing girls, with higher bone age and lower maturity offset, showed higher injury rate. Injuries in Portuguese youth were related to PA level, age, and biological maturation. Recreational, school, and federated athletes had more injury ocurrences while subjects with no sports participation had higher injury risk. Older subjects had more injuries. Early-maturing girls that had just passed peak height velocity may be particularly vulnerable to risk of sports injury because of the growing process. Increased knowledge about injury with specific PA exposure data is important to an overall risk management strategy. This study has deepened the association between injury and biological maturation variables.

  14. Sport-based physical activity recommendations and modifications in C-reactive protein and arterial thickness.

    Science.gov (United States)

    Cayres, Suziane Ungari; de Lira, Fabio Santos; Kemper, Han C G; Codogno, Jamile Sanches; Barbosa, Maurício Fregonesi; Fernandes, Romulo Araújo

    2018-04-01

    We analyzed the effects of 1 year of engagement in ≥ 300 min/week of organized sports on inflammatory levels and vascular structure in adolescents. The sample was composed of 89 adolescents (11.6 ± 0.7 years old [43 boys and 46 girls]), stratified according to engagement in ≥ 300 min/week of sport practice during at least 12 months of follow-up (n = 15, sport practice; n = 74, non-sport practice). Arterial thickness (carotid and femoral) was assessed by ultrasound scan, while high sensitive C-reactive protein levels were used to assess inflammatory status. Trunk fatness (densitometry scanner), biological maturation (age at peak height velocity), blood pressure, and skipping breakfast were treated as covariates. Independently of body fatness and biological maturation, the group engaged in sports presented a higher reduction in C-reactive protein (mean difference -1.559 mg/L [95%CI -2.539 to -0.579]) than the non-sport group (mean difference -0.414 mg/L [95%CI -0.846 to 0.017]) (p = 0.040). There was a significant relationship between changes in C-reactive protein and changes in femoral intima-media thickness in the non-sport group (r = 0.311 [95%CI 0.026 to 0.549]). Inflammation decreased in adolescents engaged in organized sports, independently of trunk fatness and biological maturation. Moreover, inflammation was related to arterial thickening only in adolescents not engaged in sports. What is Known: • Intima media thickness is a relevant marker of cardiovascular disease in pediatric groups, being affected by obesity and inflammation. • The importance of monitoring inflammatory markers from childhood is enhanced by the fact that alterations in these inflammatory markers in early life predict inflammation and alterations in carotid IMT in adulthood. What is New: • Anti-inflammatory properties related to physical exercise performed at moderate intensity, on inflammation and alterations in IMT are not clear in pediatric

  15. Radionuclide activity in the secondary cooling circuit of the NPP with WWER-440

    International Nuclear Information System (INIS)

    Voronin, L.M.; Volkov, A.P.; Kozlov, V.F.; Luzanova, L.M.; Pashevich, V.I.

    1979-01-01

    On the basis of the Kol'skaya NPP operating experience the radioactivity of water and steam fed to turbines and boilers has been determined. The radioactivity of water in the primary circuit is demonstrated to be mainly due to 24 Na, 42 K, 18 F, sup(131-135)I, and in the secondary circuit - due to 131 I and 133 I. The data obtained testify to the permanent leakage of water from the primary circuit to the secondary one averaging 19+-12 g/hr at the pressure gradient between the circuits approximately 7.0 MPa. With the probability of 1.2x10 -1 -1.6x10 -2 (eff. reactor day) -1 or 1.2x10 -8 -1.6x10 -9 (kWxhr) -1 the leakage may for some time increase to 1 l/hr

  16. Does playing a sports active video game improve object control skills of children with autism spectrum disorder?

    OpenAIRE

    Edwards, Jacqueline; Jeffrey, Sarah; May, Tamara; Rinehart, Nicole J.; Barnett, Lisa M.

    2017-01-01

    Background: Active video games (AVGs) encourage whole body movements to interact or control the gaming system, allowing the opportunity for skill development. Children with autism spectrum disorder (ASD) show decreased fundamental movement skills in comparison with their typically developing (TD) peers and might benefit from this approach. This pilot study investigates whether playing sports AVGs can increase the actual and perceived object control (OC) skills of 11 children with ASD aged 6–1...

  17. Physical Education and Sport: Does Participation Relate to Physical Activity Patterns, Observed Fitness, and Personal Attitudes and Beliefs?

    Science.gov (United States)

    Loprinzi, Paul D; Cardinal, Bradley J; Cardinal, Marita K; Corbin, Charles B

    2018-03-01

    The purpose of this study was to examine the associations between physical education (PE) and sports involvement with physical activity (PA), physical fitness, and beliefs about PA among a national sample of adolescents. Data from the National Health and Nutrition Examination Survey National Youth Fitness Survey were used. A total of 459 adolescents aged 12 to 15 years. Adolescents self-reported engagement in the above parameters; muscular fitness objectively determined. Multivariable linear regression. Adolescents who had PE during school days had a higher enjoyment of participating in PE (β = 0.32; P = .01), engaged in more days of being physically active for ≥60 min/d (β = 1.02; P sports reported that more PA was needed for good health (β = 0.23; P = .04), had a higher enjoyment of participating in PE (β = 0.31; P = .003), engaged in more days of being physically active for ≥60 min/d (β = 0.70; P = .01), performed more pull-ups (β = 2.33; P = .008), had a stronger grip strength (β = 2.5; P = .01), and performed the plank fitness test longer (β = 11.6; P = .04). Adolescents who had PE during school, who had more frequent and long-lasting PE, and who played school sports generally had more accurate perceptions of the amount of PA needed for good health, had greater enjoyment of PE, were more physically active, and performed better on several muscular fitness-related tests. This underscores the importance of PE integration in the schools and encouragement of school sports participation.

  18. The Relationship between Fundamental Motor Skill Proficiency and Participation in Organized Sports and Active Recreation in Middle Childhood

    Directory of Open Access Journals (Sweden)

    Stephanie C. Field

    2017-06-01

    Full Text Available Motor skill proficiency in middle childhood is associated with higher physical activity levels at that age and is predictive of adolescent physical activity levels. Much of the previous research in this area has used accelerometry in determining these relationships, and as a result, little is known about what physical activities the children are engaging in. Therefore the aim of this study was to examine rates of participation in physical activities, the relationships between motor proficiency and how often children participate, and if there were gender-based differences in participation, motor skills, or the relationship between these variables. Participants were 400 boys and girls (Mean age = 9 years 6 months in grade 4. Motor skills were assessed using the Test of Gross Motor Development-2 (TGMD-2 and physical activity participation was measured using the Children’s Assessment of Participation and Enjoyment (CAPE. Descriptive statistics, chi-squared analyses, and multivariate analysis of variance (MANOVA were used to examine activity patterns and whether these patterns differed by gender. Correlation coefficients were used to estimate the relationships between fundamental motor skill proficiency and participation. The boys and girls participated in many of the same activities, but girls were more likely to participate in most of the informal physical activities. More boys than girls participated in team sports, boys participated more frequently in team sports, and the boys’ object control and locomotor skill proficiency were significantly associated with participation in team sports. There were some significant associations between motor skills and participation in specific activities; however it is not clear if participation is developing skillfulness or those who are more skilled are engaging and persisting with particular activities.

  19. Increasing girls’ physical activity during an organised youth sport basketball program: a randomised controlled trial protocol

    Science.gov (United States)

    2014-01-01

    Background Participation in organised youth sports (OYS) has been recommended as an opportunity to increase young peoples’ moderate-to-vigorous physical activity (MVPA) levels. Participants, however, spend a considerable proportion of time during OYS inactive. The purpose of this study, therefore, was to investigate whether coaches who attended coach education sessions (where education on increasing MVPA and decreasing inactivity during training was delivered) can increase players’ MVPA during training sessions over a 5-day basketball program compared to coaches who did not receive coach education sessions. Methods/design A convenience sample of 80 female players and 8 coaches were recruited into the UWS School Holiday Basketball Program in Greater Western Sydney, Australia. A two-arm, parallel-group randomised controlled trial was employed to investigate whether coaches who attended 2 coach education sessions (compared with a no-treatment control) can increase their players’ MVPA during training sessions over a 5-day basketball program. Objectively measured physical activity, directly observed lesson context and leader behaviour, player motivation, players’ perceived autonomy support, and coaching information (regarding training session planning, estimations on player physical activity and lesson context during training, perceived ability to modify training sessions, perceived importance of physical activity during training, intention to increase physical activity/reduce inactivity, and likelihood of increasing physical activity/reducing inactivity) were assessed at baseline (day 1) and at follow-up (day 5). Linear mixed models will be used to analyse between arm differences in changes from baseline to follow-up on all outcomes. Discussion The current trial protocol describes, to our knowledge, the first trial conducted in an OYS context to investigate the efficacy of an intervention, relative to a control, in increasing MVPA. This study’s findings will

  20. Project Circuits in a Basic Electric Circuits Course

    Science.gov (United States)

    Becker, James P.; Plumb, Carolyn; Revia, Richard A.

    2014-01-01

    The use of project circuits (a photoplethysmograph circuit and a simple audio amplifier), introduced in a sophomore-level electric circuits course utilizing active learning and inquiry-based methods, is described. The development of the project circuits was initiated to promote enhanced engagement and deeper understanding of course content among…

  1. THE SPORTS GOODS MARKET IN THE EU

    OpenAIRE

    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...

  2. Comparison between the International Physical Activity Questionnaire and the American College of Sports Medicine/American Heart Association criteria to classify the physical activity profile in adults.

    Science.gov (United States)

    de Moraes, Suzana Alves; Suzuki, Cláudio Shigueki; de Freitas, Isabel Cristina Martins

    2013-01-01

    the study aims to evaluate the reproducibility between the International Physical Activity Questionnaire and the American College of Sports Medicine/American Heart Association criteria to classify the physical activity profile in an adult population living in Ribeirão Preto, SP, Brazil. population-based cross-sectional study, including 930 adults of both genders. The reliability was evaluated by Kappa statistics, estimated according to socio-demographic strata. the kappa estimates showed good agreement between the two criteria in all strata. However, higher prevalence of "actives" was found by using the American College of Sports Medicine/American Heart Association. although the estimates have indicated good agreement, the findings suggest caution in choosing the criteria to classify physical activity profile mainly when "walking" is the main modality of physical activity.

  3. American College of Sports Medicine Position Stand. Exercise and physical activity for older adults.

    Science.gov (United States)

    1998-06-01

    ACSM Position Stand on Exercise and Physical Activity for Older Adults. Med. Sci. Sports. Exerc., Vol. 30, No. 6, pp. 992-1008, 1998. By the year 2030, the number of individuals 65 yr and over will reach 70 million in the United States alone; persons 85 yr and older will be the fastest growing segment of the population. As more individuals live longer, it is imperative to determine the extent and mechanisms by which exercise and physical activity can improve health, functional capacity, quality of life, and independence in this population. Aging is a complex process involving many variables (e.g., genetics, lifestyle factors, chronic diseases) that interact with one another, greatly influencing the manner in which we age. Participation in regular physical activity (both aerobic and strength exercises) elicits a number of favorable responses that contribute to healthy aging. Much has been learned recently regarding the adaptability of various biological systems, as well as the ways that regular exercise can influence them. Participation in a regular exercise program is an effective intervention/ modality to reduce/prevent a number of functional declines associated with aging. Further, the trainability of older individuals (including octo- and nonagenarians) is evidenced by their ability to adapt and respond to both endurance and strength training. Endurance training can help maintain and improve various aspects of cardiovascular function (as measured by maximal VO2, cardiac output, and arteriovenous O2 difference), as well as enhance submaximal performance. Importantly, reductions in risk factors associated with disease states (heart disease, diabetes, etc.) improve health status and contribute to an increase in life expectancy. Strength training helps offset the loss in muscle mass and strength typically associated with normal aging. Additional benefits from regular exercise include improved bone health and, thus, reduction in risk for osteoporosis; improved

  4. NaV1.6a is required for normal activation of motor circuits normally excited by tactile stimulation

    Science.gov (United States)

    Low, Sean E.; Zhou, Weibin; Choong, Xinling; Saint-Amant, Louis; Sprague, Shawn M.; Hirata, Hiromi; Cui, Wilson W.; Hume, Richard I.; Kuwada, John Y.

    2010-01-01

    A screen for zebrafish motor mutants identified two non-complementing alleles of a recessive mutation that were named non-active (navmi89 and navmi130). nav embryos displayed diminished spontaneous and touch-evoked escape behaviors during the first three days of development. Genetic mapping identified the gene encoding NaV1.6a (scn8aa) as a potential candidate for nav. Subsequent cloning of scn8aa from the two alleles of nav uncovered two missense mutations in NaV1.6a that eliminated channel activity when assayed heterologously. Furthermore the injection of RNA encoding wild type scn8aa rescued the nav mutant phenotype indicating that scn8aa was the causative gene of nav. In vivo electrophysiological analysis of the touch-evoked escape circuit indicated that voltage-dependent inward current was decreased in mechanosensory neurons in mutants, but they were able to fire action potentials. Furthermore tactile stimulation of mutants activated some neurons downstream of mechanosensory neurons but failed to activate the swim locomotor circuit in accord with the behavioral response of initial escape contractions but no swimming. Thus mutant mechanosensory neurons appeared to respond to tactile stimulation but failed to initiate swimming. Interestingly fictive swimming could be initiated pharmacologically suggesting that a swim circuit was present in mutants. These results suggested that NaV1.6a was required for touch-induced activation of the swim locomotor network. PMID:20225246

  5. PHYSICAL AND SPORT ACTIVATION: IT’S INFLUENCE ON THE ACADEMIC PERFORMANCE

    Directory of Open Access Journals (Sweden)

    José Alfredo Balderrama-Ruedas

    2015-07-01

    Full Text Available This descriptive research is under the quantitative approach, the method analysis statistic is used, to show up the results obtained by the students from the Escuela Normal Rural Ricardo Flores Magón (ENRRFM, whose performed work out and sports among the four years in the bachelor´s degree in education, so on the entry test to the teaching service and analyze the relationship between work out and the sports with academic performance. The results found were the following: from the 96 students analyzed, an average of 21.87% performed work out and sport; this group got a higher average in the final results in comparison to the ones who did not and they got a qualified higher average in the entry test to the professional teaching service, however the difference did not show to mean significant according to the statistic used to analyze the data.

  6. Sports Specialization, Part II

    Science.gov (United States)

    Myer, Gregory D.; Jayanthi, Neeru; DiFiori, John P.; Faigenbaum, Avery D.; Kiefer, Adam W.; Logerstedt, David; Micheli, Lyle J.

    2016-01-01

    Context: Many coaches, parents, and children believe that the best way to develop elite athletes is for them to participate in only 1 sport from an early age and to play it year-round. However, emerging evidence to the contrary indicates that efforts to specialize in 1 sport may reduce opportunities for all children to participate in a diverse year-round sports season and can lead to lost development of lifetime sports skills. Early sports specialization may also reduce motor skill development and ongoing participation in games and sports as a lifestyle choice. The purpose of this review is to employ the current literature to provide evidence-based alternative strategies that may help to optimize opportunities for all aspiring young athletes to maximize their health, fitness, and sports performance. Evidence Acquisition: Nonsystematic review with critical appraisal of existing literature. Study Design: Clinical review. Level of Evidence: Level 4. Conclusion: Based on the current evidence, parents and educators should help provide opportunities for free unstructured play to improve motor skill development and youth should be encouraged to participate in a variety of sports during their growing years to influence the development of diverse motor skills. For those children who do choose to specialize in a single sport, periods of intense training and specialized sport activities should be closely monitored for indicators of burnout, overuse injury, or potential decrements in performance due to overtraining. Last, the evidence indicates that all youth should be involved in periodized strength and conditioning (eg, integrative neuromuscular training) to help them prepare for the demands of competitive sport participation, and youth who specialize in a single sport should plan periods of isolated and focused integrative neuromuscular training to enhance diverse motor skill development and reduce injury risk factors. Strength of Recommendation Taxonomy (SORT): B. PMID

  7. YOUTH SPORT AND PARENTS

    Directory of Open Access Journals (Sweden)

    Milan Nešić

    2010-03-01

    Full Text Available One of the characteristics of contemporary sport is certainly a wide array of sports and sport discliplines young people can choose among. This is particularly obvious through establishment of numerous schools of sport as places where people can acquire fundamental sport knoweldge and skills. The point of selection for such an engagement is the school, or, in other words, primary school children. The development of young athletes starts at a very early stage. They are faced with high demands and exposed to training sessions of different scope and intensity. In order to direct complex processes in sport efficiently and well, various factors need to be considered that affect it to a lesser or higher degree. One of those factors is indisputably the family, i.e. the influence parents have on meeting the children’s need for physical (sport activity. In the process of children’s socialization that factor is given the greatest prominence. Therefore, parents are a crucial factor in young people’s sport engagement and, thus, cannot be taken as a constituent part of a sports organization’s surroundings, but as a partner in their development.

  8. Low back pain status of female university students in relation to different sport activities.

    Science.gov (United States)

    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.

  9. Effects of physical and sporting activities on balance control in elderly people

    Science.gov (United States)

    Perrin, P. P.; Gauchard, G. C.; Perrot, C.; Jeandel, C.

    1999-01-01

    OBJECTIVE: Balance disorders increase with aging and raise the risk of accidental falls in the elderly. It has been suggested that the practice of physical and sporting activities (PSA) efficiently counteracts these age related disorders, reducing the risk of falling significantly. METHODS: This study, principally based on a period during which the subjects were engaged in PSA, included 65 healthy subjects, aged over 60, who were living at home. Three series of posturographic tests (static, dynamic with a single and fast upward tilt, and dynamic with slow sinusoidal oscillations) analysing the centre of foot pressure displacements or electromyographic responses were conducted to determine the effects of PSA practice on balance control. RESULTS: The major variables of postural control were best in subjects who had always practised PSA (AA group). Those who did not take part in PSA at all (II group) had the worst postural performances, whatever the test. Subjects having lately begun PSA practice (IA group) had good postural performances, close to those of the AA group, whereas the subjects who had stopped the practice of PSA at an early age (AI group) did not perform as well. Overall, the postural control in the group studied decreased in the order AA > IA > AI > II. CONCLUSIONS: The period during which PSA are practised seems to be of major importance, having a positive bearing on postural control. It seems that recent periods of practice have greater beneficial effects on the subject's postural stability than PSA practice only at an early age. These data are compatible with the fact that PSA are extremely useful for elderly people even if it has not been a lifelong habit. 


 PMID:10205695

  10. Computational Design for Sport Building

    NARCIS (Netherlands)

    Turrin, M.; Yang, D.; D'Aquilio, A.; Šileryte, R.; Sun, Y

    2016-01-01

    The design of sport buildings has great impact on top-sport as well as on recreational sport-activities. It implies challenging tasks in meeting the performance-requirements. This includes the control of factors like daylight/lighting, air flow, thermal conditions, just to name a few. Such factors

  11. An exploratory study of how sports and recreation industry personnel perceive the barriers and facilitators of physical activity in children with disability.

    Science.gov (United States)

    Shields, Nora; Synnot, Anneliese J

    2014-01-01

    To explore the perceived barriers and facilitators to participation in physical activity among children with disability in physical activity and community sports from the perspective of sports and recreation industry personnel. A convenient sample of 24 participants was recruited from delegates attending a symposium on physical activity for organisations in the sport and recreation sector in Victoria, Australia. The participants completed a brief questionnaire. Data were analysed by content analysis using an inductive approach. The participants reported 25 facilitators and 20 barriers to participation for children with disability. The top five reported facilitators were: welcoming providers, support and encouragement from parents or others, inclusive providers, adaptable approaches and accessibility of facilities. The top five reported barriers were: inaccessible facilities, non-inclusive providers, transport, lack of relevant opportunities and cost. Sports industry personnel share a similar perspective to families of potential barriers and facilitators to engagement by children with disability in physical activity and community sports. Policy change was not considered as a facilitator of physical activity, even though four of the top five facilitators identified could be implemented through local policy change. Implications for Rehabilitation There are multiple factors that interact with each other which influence the participation by children with disability in physical activity and community sports. The sports and recreation industry should consider policy change as a relevant way to facilitate participation by children with disability in physical activity. More professional development and disability engagement opportunities for sports and recreation industry personnel may help address some of the barriers to participation for children with disability experience.

  12. Nutritional State-Dependent Ghrelin Activation of Vasopressin Neurons via Retrograde Trans-Neuronal–Glial Stimulation of Excitatory GABA Circuits

    Science.gov (United States)

    Haam, Juhee; Halmos, Katalin C.; Di, Shi

    2014-01-01

    Behavioral and physiological coupling between energy balance and fluid homeostasis is critical for survival. The orexigenic hormone ghrelin has been shown to stimulate the secretion of the osmoregulatory hormone vasopressin (VP), linking nutritional status to the control of blood osmolality, although the mechanism of this systemic crosstalk is unknown. Here, we show using electrophysiological recordings and calcium imaging in rat brain slices that ghrelin stimulates VP neurons in the hypothalamic paraventricular nucleus (PVN) in a nutritional state-dependent manner by activating an excitatory GABAergic synaptic input via a retrograde neuronal–glial circuit. In slices from fasted rats, ghrelin activation of a postsynaptic ghrelin receptor, the growth hormone secretagogue receptor type 1a (GHS-R1a), in VP neurons caused the dendritic release of VP, which stimulated astrocytes to release the gliotransmitter adenosine triphosphate (ATP). ATP activation of P2X receptors excited presynaptic GABA neurons to increase GABA release, which was excitatory to the VP neurons. This trans-neuronal–glial retrograde circuit activated by ghrelin provides an alternative means of stimulation of VP release and represents a novel mechanism of neuronal control by local neuronal–glial circuits. It also provides a potential cellular mechanism for the physiological integration of energy and fluid homeostasis. PMID:24790191

  13. Assessment of physical activity, energy expenditure and energy intakes of young men practicing aerobic sports.

    Science.gov (United States)

    Wierniuk, Alicja; Włodarek, Dariusz

    2014-01-01

    Adequate nutrition and energy intake play key rule during the training period and recovery time. The assessment of athlete's energetic needs should be calculated individually, based on personal energy expenditure and Sense Wear PRO3 Armband (SWA) mobile monitor is a useful tool to achieve this goal. However, there is still few studies conducted with use of this monitor. To assess individual energy needs of athletes by use of SWA and to determine whether their energy intake fulfils the body's energy expenditure. Subjects were 15 male students attending Military University of Technology in Warsaw, aged 19-24 years, practicing aerobic. The average body mass was 80.7 ± 7.7 kg and average height was 186.9 ± 5.2 cm, (BMI 23.09 ± 1.85 kg/m2). Assessment of physical activity and energy expenditure (TEE) was established using SWA, which was placed on the back side of dominant hand and worn continuously for 48 hours (during the training and non-training day). The presented results are the average values of these 2 days. Assessment of athletes' physical activity level was established by use of metabolic equivalent of task (MET) and number of steps (NS). Estimation of energy intake was based on three-day dietary recalls (two weekdays and one day of the weekend), evaluated using the Polish Software 'Energia' package. The average TEE of examined athletes was 3877 ± 508 kcal/day and almost half of this energy was spend on physical activity (1898 ± 634 kcal/day). The number of steps was on average 19498 ± 5407 and average MET was 2.05 ± 2.09. The average daily energy intake was 2727 ± 576 kcal. Athletes consumed inadequate amount of energy in comparison to their energy expenditure. Examined group did not have an adequate knowledge about their energy requirement, which shows the need of nutritional consulting and education among these athletes. athletes, aerobic sports, energy expenditure, energy intake.

  14. Sports Safety

    Science.gov (United States)

    Playing sports can be fun, but it can also be dangerous if you are not careful. You can help ... you are healthy before you start playing your sport Wearing the right shoes, gear, and equipment Drinking ...

  15. Sports Injuries

    Science.gov (United States)

    ... sometimes you can injure yourself when you play sports or exercise. Accidents, poor training practices, or improper ... can also lead to injuries. The most common sports injuries are Sprains and strains Knee injuries Swollen ...

  16. Low latency asynchronous interface circuits

    Science.gov (United States)

    Sadowski, Greg

    2017-06-20

    In one form, a logic circuit includes an asynchronous logic circuit, a synchronous logic circuit, and an interface circuit coupled between the asynchronous logic circuit and the synchronous logic circuit. The asynchronous logic circuit has a plurality of asynchronous outputs for providing a corresponding plurality of asynchronous signals. The synchronous logic circuit has a plurality of synchronous inputs corresponding to the plurality of asynchronous outputs, a stretch input for receiving a stretch signal, and a clock output for providing a clock signal. The synchronous logic circuit provides the clock signal as a periodic signal but prolongs a predetermined state of the clock signal while the stretch signal is active. The asynchronous interface detects whether metastability could occur when latching any of the plurality of the asynchronous outputs of the asynchronous logic circuit using said clock signal, and activates the stretch signal while the metastability could occur.

  17. Gender bias in beliefs on physical activity: Buffering effects of sport participation among girls

    Science.gov (United States)

    The purpose of this study was to determine effects of child gender on parental and child beliefs and evaluate competitive sport participation as a modifier of child beliefs. Two age-groups of children and parents completed measures on child athletic appearance, competence, importance of physical act...

  18. Removing the Blinders: Toward an Integrative Model of Organizational Change in Sport and Physical Activity.

    Science.gov (United States)

    Cunningham, George B.

    2002-01-01

    Discusses the nature of the change process in physical education and sports, presenting a model to incorporate in studies of radical organizational change. The integration of four theories (institutionalism, population ecology, strategic choice, and resource dependence) provides the basis for the model. The paper offers a hypothetical example and…

  19. When Physical Activity Participation Promotes Inactivity: Negative Experiences of Spanish Adolescents in Physical Education and Sport

    Science.gov (United States)

    Beltran-Carrillo, Vicente J.; Devis-Devis, Jose; Peiro-Velert, Carmen; Brown, David H. K.

    2012-01-01

    This article analyses negative experiences in physical education and sport reported during qualitative interviews of a group of inactive adolescent Spanish boys and girls. The purpose of this analysis is twofold. First and most important, it seeks to give voice to these young people reporting negative experiences and connect them to contexts of…

  20. Rating of Perceived Exertion for Quantification of Training and Combat Loads During Combat Sport-Specific Activities: A Short Review.

    Science.gov (United States)

    Slimani, Maamer; Davis, Philip; Franchini, Emerson; Moalla, Wassim

    2017-10-01

    The aim of this short review was to summarize data pertaining to the rating of perceived exertion (RPE) methods (RPE value and session-RPE) during combat sport-specific activities (i.e., competition and training) based on many factors, including contest type (i.e., official vs. simulated vs. training), combat rounds, age of participants and muscle groups, and their correlation with physiological variables (i.e., blood lactate concentration [La] and heart rate [HR]). The current review shows higher RPE in a match of mixed martial arts (MMAs) than Brazilian jiu-jitsu and kickboxing matches and during the competitive period compared with the precompetitive period. This could be explained by the longer duration of bouts, the higher percentage contribution of aerobic metabolism in MMA than other combat sports and contest type differences (simulated vs. official matches). Thus, this review found significant correlations between RPE or session-RPE, [La] and HR. Particularly, there was a stronger correlation between RPE and [La] during official striking (r = 0.81) than grappling combat sports matches (r = 0.53). In addition, a variation of correlation (moderate to large) between session-RPE and HR-based methods has been reported (i.e., Edwards' training load [r ranged between 0.58 and 0.95] and Banister training impulse [r ranged between 0.52 and 0.86]). Specifically, stronger correlation was apparent in combat sport competition that required a much higher percentage contribution of aerobic metabolism (e.g., karate) and in adult athletes than anaerobic-based combat sports (e.g., taekwondo) and young athletes, respectively. Indeed, the current review highlights that the correlations between session-RPE and HR-based methods were higher during official competition than training sessions. Session-RPE was affected by participants' competitive level, the intensity of session (high vs. low), the training modalities (tactical-technical vs. technical-development vs. simulated

  1. Motivations and barriers to prosthesis users participation in physical activity, exercise and sport: a review of the literature.

    Science.gov (United States)

    Deans, Sarah; Burns, David; McGarry, Anthony; Murray, Kevin; Mutrie, Nanette

    2012-09-01

    The UK will host the Paralympics in 2012 and the Commonwealth Games in 2014 showcasing the talents of elite athletes and aiming to inspire the population to become involved. However, low levels of physical activity are prevalent: only 40% of men and 28% of women meet the minimum UK physical activity recommendations. The population of people with limb absence is no exception. To determine if people with amputation are participating in physical activity and sport; whether post-amputation activity levels match pre-amputation levels; and if there are motivations and barriers to participation. Literature review. Five reviewers systematically searched all peer reviewed and gray literature in seven bibliographic databases and the Cochrane Library. Following rigorous elimination, 12 articles were finally included in the review and critically appraised. Four themes were identified: components; rehabilitation outcomes; body image; and motivations and barriers to participation. People with limb absence are not participating in physical activity conducive to health benefits, and only a minority participate in exercise and sports. Participation following amputation does not mirror that of pre-amputation levels, and more barriers than motivations exist to adopting or maintaining a physically active lifestyle.

  2. [Sport for pacemaker patients].

    Science.gov (United States)

    Israel, C W

    2012-06-01

    Sport activity is an important issue in many patients with a pacemaker either because they performed sport activities before pacemaker implantation to reduce the cardiovascular risk or to improve the course of an underlying cardiovascular disease (e.g. coronary artery disease, heart failure) by sports. Compared to patients with an implantable cardioverter defibrillator (ICD) the risks from underlying cardiovascular disease (e.g. ischemia, heart failure), arrhythmia, lead dysfunction or inappropriate therapy are less important or absent. Sport is contraindicated in dyspnea at rest, acute heart failure, new complex arrhythmia, acute myocarditis and acute myocardial infarction, valvular disease with indications for intervention and surgery and comorbidities which prevent physical activity. Patients with underlying cardiovascular disease (including hypertension) should preferably perform types and levels of physical activity that are aerobic (with dynamic exercise) such as running, swimming, cycling instead of sport with high anaerobic demands and high muscular workload. In heart failure, studies demonstrated advantages of isometric sport that increases the amount of muscle, thereby preventing cardiac cachexia. Sport with a risk of blows to the chest or physical contact (e.g. boxing, rugby, martial arts) should be avoided. Implantation, programming and follow-up should respect specific precautions to allow optimal physical activity with a pacemaker including implantation of bipolar leads on the side contralateral to the dominant hand, individual programming of the upper sensor and tracking rate and regular exercise testing.

  3. Subarachnoid Haemorrhage and Sports.

    Science.gov (United States)

    Sousa Nanji, Liliana; Melo, Teresa P; Canhão, Patrícia; Fonseca, Ana Catarina; Ferro, José Manuel

    2015-01-01

    Some cases of subarachnoid haemorrhage (SAH) have been associated with vigorous physical activity, including sports. Our research aimed to describe the association between SAH and sports and to identify the types of sports that were more frequently found as precipitating factors in a tertiary single-centre SAH register. We retrieved information from a prospectively collected SAH registry and reviewed discharge notes of acute SAH patients admitted to the Stroke Unit of Hospital de Santa Maria, Lisbon, between 1995 and 2014. Out of 738 patients included in the analysis, 424 (57.5%) cases of SAH were preceded by physical activity. Nine cases (1.2%) were associated with sports, namely running (2 cases), aerobics (2 cases), cycling, body balance, dance, surf and windsurf. Patients with SAH while practicing sports were younger than controls (average age 43.1 vs. 57.0 years; p = 0.007). In 1 patient, there was a report of trauma to the neck. Patients in the sports group only had Hunt and Hess scale grades 1 (11.1%) or 2 (88.9%) at admission, while patients in the control group had a wider distribution in severity. Our findings indicate that SAH precipitated by sports is not very frequent and is uncommonly related to trauma. Patients who suffered SAH associated with sports were younger and apparently had a milder clinical presentation.

  4. SPORT SUPPLEMENTATION

    OpenAIRE

    Alexandаr Marinkov

    2016-01-01

    Sport supplementation is essential for athletes performance and achievements. The well balanced and structured supplementation is a challenge for sport medicine because must be done a balance between potential benefits and potential risks (anti-doping rule violations and others). In this review are structured the most used categories sport supplementations. Nutritional supplements used in sport could be divided in some main categories like: amino acids, vitamins, proteins and antioxidants. Fo...

  5. SPORT MARKETING

    OpenAIRE

    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...

  6. Development of quench detection/protection system based on active power method for superconducting magnet by using capacitor circuit

    International Nuclear Information System (INIS)

    Nanato, N.; Otsuka, T.; Hesaka, S.; Murase, S.

    2013-01-01

    Highlights: ► The authors have presented an active power method for quench detection. ► A method for improving its characteristics using a capacitor circuit was proposed. ► Quench detection/protection test for a Bi2223 superconducting coil was carried out. ► The proposed method was more useful than the conventional one. -- Abstract: When a quench occurs in a superconducting magnet, excessive joule heating in normal region may damage the magnet. It is necessary to detect the quench as soon as possible and discharge magnetic energy stored in the magnet. The authors have presented a quench detection/protection system based on an active power method which detects the quench regardless of a self-inductive and mutual-inductive voltages and electromagnetic noise. In the conventional active power method, the inductive voltages are removed by cancel coils. In this paper, the authors propose a method to cancel an inductive voltage using a capacitor circuit. The quench detection/protection system becomes more precise and smaller than the conventional system through the capacitor circuit

  7. Effects of a School-Based Sports Program on Physical Fitness, Physical Activity, and Cardiometabolic Health in Youth With Physical Disabilities : Data From the Sport-2-Stay-Fit Study

    NARCIS (Netherlands)

    Zwinkels, Maremka; Verschuren, Olaf; Balemans, Astrid; Lankhorst, Kristel; Te Velde, Saskia; van Gaalen, Leendert; de Groot, Janke; Meilij, JMA; Takken, Tim

    2018-01-01

    Objective: To investigate the effects of a school-based once-a-week sports program on physical fitness, physical activity, and cardiometabolic health in children and adolescents with a physical disability. Methods: This controlled clinical trial included 71 children and adolescents from four schools

  8. [Doping in disabled sports. Doping control activities at the Paralympic Games 1984-2008 and in Germany 1992-2008].

    Science.gov (United States)

    Thevis, Mario; Hemmersbach, Peter; Geyer, Hans; Schänzer, Wilhelm

    2009-12-15

    Activities concerning the fight against doping with regard to the Paralympic Games have been initiated in 1984, when first doping controls were conducted. The foundation of the International Paralympic Committee exactly 20 years ago (1989) considerably supported systematic sports drug-testing programs specifically designed to meet the particular challenges related to disabled sports, which yielded a variety of adverse analytical findings (e.g., with anabolic steroids, diuretics, corticosteroids, and stimulants) especially at Paralympic Summer Games. In Germany, doping controls for handicapped athletes were established in 1992 and have been conducted since by the National Paralympic Committee Germany and the National Anti-Doping Agency. Also here, various analogies in terms of antidoping rule violations were found in comparison to doping controls of nondisabled athletes. In the present article, available numbers of samples analyzed at Paralympic Summer and Winter Games as well as within the doping control program for disabled sports in Germany are summarized, and particularities concerning sample collection and the doping method termed boosting are presented.

  9. oh sport

    Directory of Open Access Journals (Sweden)

    Elena Grigoryeva

    2017-03-01

    Sports play a very important and diverse role in the present-day global culture. On the occasion of the 105th anniversary of Coubertin’s Ode we would like to wish sports to return to the main words of the Ode and to correspond with them: “Oh sport, you are the peace”.

  10. Evaluation of the role of Care Sport Connectors in connecting primary care, sport, and physical activity, and residents' participation in the Netherlands: study protocol for a longitudinal multiple case study design.

    Science.gov (United States)

    Smit, E; Leenaars, K E F; Wagemakers, M A E; Molleman, G R M; Koelen, M A; van der Velden, J

    2015-11-23

    The number of people with one or more chronic diseases is increasing, but this trend could be reduced by promoting physical activity. Therefore, in 2012, the Dutch Ministry of Health, Welfare, and Sport introduced Care Sport Connectors (CSCs), to whom a broker role has been ascribed. The defined outcome of CSCs role is an increased number of residents participating in local sports facilities and being physically active in their own neighbourhood. To realize this, primary care and sports professionals need to collaborate, and local sports facilities and neighbourhoods need to offer accessible physical activities for people in the locality, including people with one or more chronic diseases or at increased risk of chronic disease(s). Adequate scientific research is needed to assess CSCs' impact on: 1) connecting primary care, sport, and physical activity and 2) increasing the number of residents who engage in physical activity to promote their health. To study the role and the impact of CSCs, a longitudinal multiple case study will be conducted, in nine municipalities spread over the Netherlands, from 2014 until 2017. A mixed methodology will be used to perform action research and process evaluation. Study I focuses on the expected alliances of CSCs and the preconditions that facilitate or hinder CSCs in the formation of these alliances. The study population will consist of intermediary target groups. A literature review, interviews, focus groups, and document analysis will be undertaken. Study II will concentrate on lifestyle program participants to identify health and physical activity behavior changes. For this purpose, interviews, literature studies, a Delphi study, fitness tests, and questionnaires will be used. Linking and integrating results gained by multiple methods, at different levels, will provide a validated assessment of CSCs' impact on connecting the primary care and sports sectors. This will reveal changes in residents' physical activity behavior, and

  11. Activity build-up in the primary circuit of pressurized water reactors

    International Nuclear Information System (INIS)

    Sachse, G.; Mittag, I.

    1986-01-01

    Based upon international literature, the following topics are reviewed: research and development efforts; release, transport, and deposition of radioactive corrosion products under primary circuit conditions; experimental results in test and technical systems; possibilities of controlling radiation fields in nuclear power plants by water-chemical measures, decontamination, and high-temperature filtration. (author)

  12. [Analysis of fourteen French national programmes on physical activity and sports as determinants of health from 2001 to 2006].

    Science.gov (United States)

    Bréchat, Pierre-Henri; Vogel, Thomas; Berthel, Marc; Kaltenbach, Georges; Le Divenah, Aude; Segouin, Christophe; Rymer, Roland; Lonsdorfer, Jean

    2009-01-01

    Physical activity and sports are considered as one of the determinants of health. The aim of this study is to review the rationale for the formulation of this public health issue and its integration in national action plans. The study shows that fourteen national programmes were drafted and implemented between 2001 and 2006 by seven institutions. The research methodology was based on crossing data obtained from semi-directed interviews and documents regarding the design, implementation and follow-up of these programmes. For the conditions of the success, the fourteen actions scored an average of 175.0 +/- 66.9 out of 300%. Public health actors and professionals must be given more opportunities to involve themselves and engage in developing stronger relationships and linkages, in particular with the institutional and community settings. In general, the most invested parts of a programme are the structural and operational aspects of activities. Six significant points surfaced from the study: consideration of drug use as an addictive behaviour; recognition of the psychological stress of professional athletes; acknowledgment of youth as being at high risk for doping behaviour; integration of the concept that physical activity and sports must take the benefit/risk perspective into account; and the necessity to promote health. Through the exchange of numerous local and regional experiences, an optimisation of their synergistic connections was made possible on a continuum extending from "health promotion through physical activity and sports" to "prevention of drug-use and doping behaviours". Professionals have been able to develop actions in the above-mentioned domains across this continuum that have, to date, remained isolated. Proposals are made to strengthen these dynamics. Other health determinants and public health priorities could be investigated with the same methodology.

  13. Can the London 2012 Olympics ‘inspire a generation’ to do more physical or sporting activities? An overview of systematic reviews

    Science.gov (United States)

    Mahtani, Kamal Ram; Protheroe, Joanne; Slight, Sarah Patricia; Demarzo, Marcelo Marcos Piva; Blakeman, Thomas; Barton, Christopher A; Brijnath, Bianca; Roberts, Nia

    2013-01-01

    Objective To examine if there is an increased participation in physical or sporting activities following an Olympic or Paralympic games. Design Overview of systematic reviews. Methods We searched the Medline, Embase, Cochrane, DARE, SportDISCUS and Web of Knowledge databases. In addition, we searched for ‘grey literature’ in Google, Google scholar and on the International Olympic Committee websites. We restricted our search to those reviews published in English. We used the AMSTAR tool to assess the methodological quality of those systematic reviews included. Primary and secondary outcome measures The primary outcome was evidence for an increased participation in physical or sporting activities. Secondary outcomes included public perceptions of sport during and after an Olympic games, barriers to increased sports participation and any other non-sporting health benefits. Results Our systematic search revealed 844 citations, of which only two matched our inclusion criteria. The quality of these two reviews was assessed by three independent reviewers as ‘good’ using the AMSTAR tool for quality appraisal. Both reviews reported little evidence of an increased uptake of sporting activity following an Olympic Games event. Other effects on health, for example, changes in hospital admissions, suicide rates and drug use, were cited although there was insufficient evidence to see an overall effect. Conclusion There is a paucity of evidence to support the notion that hosting an Olympic games leads to an increased participation in physical or sporting activities for host countries. We also found little evidence to suggest other health benefits. We conclude that the true success of these and future games should be evaluated by high-quality, evidence-based studies that have been commissioned before, during and following the completion of the event. Only then can the true success and legacy of the games be established. PMID:23299112

  14. THE HEURISTIC FUNCTION OF SPORT

    Directory of Open Access Journals (Sweden)

    Adam Petrović

    2012-09-01

    Full Text Available Being a significant area of human activity, sport has multiple functions. One of the more important functions of sport, especially top sport, is the inventive heuristic function. Creative work, being a process of creating new values, represents a significant possibility for advancement of sport. This paper aims at pointing at the various dimensions of human creative work, at the creative work which can be seen in sport (in a narrow sense and at the scientific and practical areas which borderline sport. The method of theoretical analysis of different approaches to the phenomenon of creative work , both in general and in sport, was applied in this paper. This area can be systematized according to various criterion : the level of creative work, different fields where it appears, the subjects of creative work - creators etc. Case analysis shows that the field of creative work in sport is widening and deepening constantly. There are different levels of creativity not only in the system of training and competition, but in a wider social context of sport as well. As a process of human spirit and mind the creative work belongs not just to athletes and coaches, but also to all the people and social groups who's creative power manifests itself in sport. The classification of creative work in sport according to various criterion allows for heuristic function of sport to be explained comprehensively and to create an image how do the sparks of human spirit improve the micro cosmos of sport. A thorough classification of creative work in sport allows for a detailed analysis of all the elements of creative work and each of it’s area in sport. In this way the progress in sport , as a consequence of innovations in both competitions and athletes’ training and of everything that goes with those activities, can be guided into the needed direction more easily as well as studied and applied.

  15. Policy, sport and integration

    DEFF Research Database (Denmark)

    Agergaard, Sine; Sørensen, Jan Kahr

    2010-01-01

    Increased public funding, more governmental involvement and an emphasis on the instrumental values of physical activities have in general become characteristic of Western nations’ policies towards sport. Denmark is, however, a little different in that there is still little political intervention...... in sport, although sports clubs do get economic support and are seen as having the potential to solve crucial social issues. The purpose of this article is to analyse and discuss the ways in which the political assumption that sport can enhance social integration is reflected in the practical governance...... of integration issues in particular in sports clubs. The article is based on a local field study in which we interviewed 10 talented football players with ethnic minority backgrounds and eight coaches and club leaders from six different football clubs. Distinguishing between integration and assimilation...

  16. Organization of Functional Long-Range Circuits Controlling the Activity of Serotonergic Neurons in the Dorsal Raphe Nucleus.

    Science.gov (United States)

    Zhou, Li; Liu, Ming-Zhe; Li, Qing; Deng, Juan; Mu, Di; Sun, Yan-Gang

    2017-03-21

    Serotonergic neurons play key roles in various biological processes. However, circuit mechanisms underlying tight control of serotonergic neurons remain largely unknown. Here, we systematically investigated the organization of long-range synaptic inputs to serotonergic neurons and GABAergic neurons in the dorsal raphe nucleus (DRN) of mice with a combination of viral tracing, slice electrophysiological, and optogenetic techniques. We found that DRN serotonergic neurons and GABAergic neurons receive largely comparable synaptic inputs from six major upstream brain areas. Upon further analysis of the fine functional circuit structures, we found both bilateral and ipsilateral patterns of topographic connectivity in the DRN for the axons from different inputs. Moreover, the upstream brain areas were found to bidirectionally control the activity of DRN serotonergic neurons by recruiting feedforward inhibition or via a push-pull mechanism. Our study provides a framework for further deciphering the functional roles of long-range circuits controlling the activity of serotonergic neurons in the DRN. Copyright © 2017 The Author(s). Published by Elsevier Inc. All rights reserved.

  17. The association between active participation in a sports club, physical activity and social network on the development of lung cancer in smokers: a case-control study

    Directory of Open Access Journals (Sweden)

    Schmidt Anna

    2012-01-01

    Full Text Available Abstract Background This study analyses the effect of active participation in a sports club, physical activity and social networks on the development of lung cancer in patients who smoke. Our hypothesis is that study participants who lack social networks and do not actively participate in a sports club are at a greater risk for lung cancer than those who do. Methods Data for the study were taken from the Cologne Smoking Study (CoSmoS, a retrospective case-control study examining potential psychosocial risk factors for the development of lung cancer. Our sample consisted of n = 158 participants who had suffered lung cancer (diagnosis in the patient document and n = 144 control group participants. Both groups had a history of smoking. Data on social networks were collected by asking participants whether they participated in a sports club and about the number of friends and relatives in their social environment. In addition, sociodemographic data (gender, age, education, marital status, residence and religion, physical activity and data on pack years (the cumulative number of cigarettes smoked by an individual, calculated by multiplying the number of cigarettes smoked per day by the number of years the person has smoked divided by 20 were collected to control for potential confounders. Logistic regression was used for the statistical analysis. Results The results reveal that participants who are physically active are at a lower risk of lung cancer than those who are not (adjusted OR = 0.53*; CI = 0.29-0.97. Older age and lower education seem also to be risk factors for the development of lung cancer. The extent of smoking, furthermore, measured by pack years is statistically significant. Active participation in a sports club, number of friends and relatives had no statistically significant influence on the development of the cancer. Conclusions The results of the study suggest that there is a lower risk for physically active participants to develop

  18. Social neighborhood environment and sports participation among Dutch adults: does sports location matter?

    Science.gov (United States)

    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.

  19. Adolescent consumption of sports and energy drinks: linkages to higher physical activity, unhealthy beverage patterns, cigarette smoking, and screen media use.

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    Larson, Nicole; Dewolfe, Jessica; Story, Mary; Neumark-Sztainer, Dianne

    2014-01-01

    To examine patterns of adolescent sports and energy drink (SED) consumption and identify behavioral correlates. Data were drawn from Eating and Activity in Teens, a population-based study. Adolescents from 20 middle and high schools in Minneapolis/St Paul, MN completed classroom-administered surveys. A total of 2,793 adolescents (53.2% girls) in grades 6-12. Beverage patterns; breakfast frequency; moderate to vigorous physical activity (MVPA); media use; sleep; and cigarette smoking. Linear and logistic regression models were used to estimate associations between health behaviors and SED consumption, adjusting for demographics. Over a third of adolescents consumed sports drinks and 14.7% consumed energy drinks at least once a week. Among boys and girls, both sports and energy drink consumption were related to higher video game use; sugar-sweetened beverage and fruit juice intake; and smoking (P Sports drink consumption was also significantly related to higher MVPA and organized sport participation for both genders (P sports drink consumption was associated with higher MVPA, adolescents should be reminded of recommendations to consume these beverages only after vigorous, prolonged activity. There is also a need for future interventions designed to reduce SED consumption, to address the clustering of unhealthy behaviors. Copyright © 2014 Society for Nutrition Education and Behavior. Published by Elsevier Inc. All rights reserved.

  20. Somatotypes in Sport

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    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.

  1. The Tehran Older Adults’ Leisure Time and Physical Activity With Emphesize of Sport Equipments Provided by Municipality in 2010

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    Mahboubeh Chamanpira

    2014-10-01

    Full Text Available Objectives: The purpose of this research is to evaluate the quality of the older adults’ leisure time in Tehran focused on their physical activity and their satisfaction with outdoor sport facilities provided in the parks by municipality. Methods & Materials: The type of research is descriptive in which Tehran is divided into 5 (geographical districts. Through cluster sampling method, 366 individuals has been randomly selected out of 701300 people as Tehran elderly population. The information gathering tool is a questionnaire made by the researcher. Its validity and reliability was measured by experts and Cronbach’s alpha 0.80. Pearson’s r correlations were conducted in order to determine whether significant correlations exist between variables. All statistical analysis were done using SPSS 13 software and alpha level was set at <0.05 Results: findings show that about 74% of the elderly do exercise, most of which is walking. It has been revealed through this research that 59.7% are moderate with the quality of their leisure time. In addition, 48.2% does not use the sports equipments in the parks and 41.7% think that body-building equipment in the parks highly or absolutely highly appropriate for the elderly. There is a meaningful correlation between age and duration of leisure time (P<0.01.Whereas, the correlation between age and satisfaction with facilities is not meaningful (P≤0.05. Furthermore, there are also meaningful correlation between gender and the degree of satisfaction. Conclusion: According to findings of this research, the majority of elder were satisfied with their liesure time at moderately level. Doing physical activity have a significant role in their satisfaction of leisure time. Existing of appropriate sports equipments in parks encourage them to practice physical activities. As a result, the extension and development of these facilities are recommended.

  2. Activation in mesolimbic and visuospatial neural circuits elicited by smoking cues: evidence from functional magnetic resonance imaging.

    Science.gov (United States)

    Due, Deborah L; Huettel, Scott A; Hall, Warren G; Rubin, David C

    2002-06-01

    The authors sought to increase understanding of the brain mechanisms involved in cigarette addiction by identifying neural substrates modulated by visual smoking cues in nicotine-deprived smokers. Event-related functional magnetic resonance imaging (fMRI) was used to detect brain activation after exposure to smoking-related images in a group of nicotine-deprived smokers and a nonsmoking comparison group. Subjects viewed a pseudo-random sequence of smoking images, neutral nonsmoking images, and rare targets (photographs of animals). Subjects pressed a button whenever a rare target appeared. In smokers, the fMRI signal was greater after exposure to smoking-related images than after exposure to neutral images in mesolimbic dopamine reward circuits known to be activated by addictive drugs (right posterior amygdala, posterior hippocampus, ventral tegmental area, and medial thalamus) as well as in areas related to visuospatial attention (bilateral prefrontal and parietal cortex and right fusiform gyrus). In nonsmokers, no significant differences in fMRI signal following exposure to smoking-related and neutral images were detected. In most regions studied, both subject groups showed greater activation following presentation of rare target images than after exposure to neutral images. In nicotine-deprived smokers, both reward and attention circuits were activated by exposure to smoking-related images. Smoking cues are processed like rare targets in that they activate attentional regions. These cues are also processed like addictive drugs in that they activate mesolimbic reward regions.

  3. MANAGEMENT OF SPORT COMPLEXES

    Directory of Open Access Journals (Sweden)

    Marian STAN

    2015-07-01

    Full Text Available The actuality of the investigated theme. Nowadays, human evolution, including his intellectual development, proves the fact that especially the creation manpower and the employment was the solution of all life’s ambitions in society. So, the fact is that in reality, man is the most important capital of the society. Also, in an individual’s life, the practice of sport plays a significant role and that’s why the initiation, the launch and the management of sports complexes activity reveal the existence of specific management features that we will identify and explain in the current study. The aim of the research refers to the elaboration of a theoretical base of the management of the sport complexes, to the pointing of the factors that influence the efficient existence and function of a sport complex in our country and to the determination of the responsibilities that have a manager who directs successfully the activity of the sport complexes. The investigation is based on theoretical methods, such as: scientific documentation, analysis, synthesis, comparison and on empirical research methods, like: study of researched literature and observation. The results of the research indicate the fact that the profitability of a sport complex must assure a particular structure to avoid the bankruptcy risk and also, that the administration of the sport complexes activity must keep in view the reliable functions of the contemporaneous management.

  4. Maximal aerobic power in cycle ergometry in middle-aged men and women, active in sports, in relation to age and physical activity.

    Science.gov (United States)

    Bovens, A M; van Baak, M A; Vrencken, J G; Wijnen, J A; Saris, W H; Verstappen, F T

    1993-02-01

    Reliable standards of maximal power output in middle-aged and physically active men and women are desirable in sports-medical practice. For this purpose maximal cycle ergometer tests were evaluated in 2038 men and 898 women over 40 years of age (46.8 +/- 6.1 years (mean +/- SD) and 47.5 +/- 6.6 years), who volunteered in a sports-medical check-up and all of whom were active in sports for at least three months in the year preceding the screening (4.3 +/- 3.1 hours/week respectively 3.6 +/- 2.5 hours/week). The range of maximal values for power output (Wmax), heart rate (HRmax), systolic blood pressure (SBPmax) and peak plasma lactate concentrations (PPLa) during progressive cycle ergometer testing are presented for males and females who were divided into groups with a 5-years age difference. Wmax varied with sex (male = 1, female = 0), age (year) and height (cm); Wmax = 65.3 x (sex) + 2.0 x (height) -1.9 x (age) - 67.9 (See = 38.2; r = 0.76). The weighing of different factors that influence performance was also studied by multiple regression analysis to provide improved precision in standards used to interpret exercise tests. In both men and women about half of the variation of Wmax could be explained by the independent variables age, body mass, body fat, smoking habits, vital capacity, heart rate, and physical activity parameters. I