WorldWideScience

Sample records for professional soccer coaches

  1. LEADERSHIP POWER PERCEPTION OF AMATEUR AND PROFESSIONAL SOCCER COACHES ACCORDING TO THEIR MARITAL STATUS

    Directory of Open Access Journals (Sweden)

    E. Konter

    2011-11-01

    Full Text Available The purpose of this study was to analyse the leadership power perception of amateur and professional soccer coaches according to their marital status. Data were collected from 165 male soccer coaches (n=71 technical director-manager and A license, n=46 B license, n=48 amateur license. An adapted Turkish version of Power in Soccer Questionnaire-Self (PSQ-S for coaches and an information form were used for the data collection [21]. Cronbach reliability alphas of PSQ-S range between 0.65 and 0.84. Coaches’ data were analysed by Kruskal-Wallis and Mann-Whitney tests. Kruskal-Wallis analysis of PSQ-S revealed significant differences between leadership power perception of amateur and professional soccer coaches according to their marital status related to Referent Power (RP [χ[sup]2[/sup] (3 = 9.61, p0.05. The results indicated that married coaches have higher perception of RP than single coaches, irrespective of being an amateur or a professional. Comparison of professional and amateur coaches suggests that while single professional coaches have higher perception of EP than married professional coaches, the results are the reverse for amateur coaches; in other words, amateur married coaches have higher perception of EP than amateur single coaches. There is a lack of research to draw more certain conclusions. Future researchers should also take into consideration personality, psychological skills, sport experience, age, taking responsibility, attributions, expectations, emotions, perception of achievement, etc.

  2. Usefulness of dismissing and changing the coach in professional soccer.

    Directory of Open Access Journals (Sweden)

    Andreas Heuer

    Full Text Available Whether a coach dismissal during the mid-season has an impact on the subsequent team performance has long been a subject of controversial scientific discussion. Here we find a clear-cut answer to this question by using a recently developed statistical framework for the team fitness and by analyzing the first two moments of the effect of a coach dismissal. We can show with an unprecedented small statistical error for the German soccer league that dismissing the coach within the season has basically no effect on the subsequent performance of a team. Changing the coach between two seasons has no effect either. Furthermore, an upper bound for the actual influence of the coach on the team fitness can be estimated. Beyond the immediate relevance of this result, this study may lead the way to analogous studies for exploring the effect of managerial changes, e.g., in economic terms.

  3. Leadership power perception of amateur and professional soccer coaches and players according to their belief in good luck or not.

    Science.gov (United States)

    Konter, Erkut

    2010-09-01

    The purpose of this study was to analyze the leadership power perception of amateur and professional soccer coaches and players according to their belief in good luck or not. Data collected from 165 male soccer coaches and 870 male soccer players including professionals and amateurs. The coaches had a mean age of 40.24 years (SD = 8.40) and had been coaching for an average of 8.56 years (SD = 6.75). The players had a mean age of 18.40 years (SD = 4.00) and had been playing soccer for an average of 6.00 years (SD = 4.15) with license. Adapted Turkish version of Power in Soccer Questionnaire-Other (PSQ-O for soccer players), Power in Soccer Questionnaire-Self (PSQ-S for coaches) and an information form were used for the data collection. Cronbach Reliability Alphas of PSQ-O and PSQ-S range between 0.60 and 0.84. Players' and coaches' data were analyzed by Kruskal-Wallis and Mann Whitney Tests. Analysis of PSQ-O revealed significant differences related to Coersive Power-CP [chi2 (3) = 8.46, p 0.05). Results of PSQ-O and PSQ-S indicated complex relationships related to belief in good luck or not. Overall, there are differences between coaches' and players'perception of CP, LP and EP related to belief in good luck or not. The only similarity appears to be in perception of RP. However, there is lack of research to make more certain conclusions. Future researchers should also take into consideration gender, sport experience, age, taking responsibility, self-confidence, attributions, expectations, superstitions, emotions, perception of achievement etc.

  4. Coaching Peripheral Vision Training for Soccer Athletes

    Science.gov (United States)

    Marques, Nelson Kautzner, Jr.

    2010-01-01

    Brazilian Soccer began developing its current emphasis on peripheral vision in the late 1950s, by initiative of coach of the Canto do Rio Football Club, in Niteroi, Rio de Janeiro, a pioneer in the development of peripheral vision training in soccer players. Peripheral vision training gained world relevance when a young talent from Canto do Rio,…

  5. Soccer Endurance Development in Professionals

    NARCIS (Netherlands)

    Roescher, C. R.; Elferink-Gemser, M. T.; Huijgen, B. C. H.; Visscher, C.

    The development of intermittent endurance capacity, its underlying mechanisms and role in reaching professional level in soccer was investigated. The sample included 130 talented youth soccer players aged 14-18, who became professional (n = 53) or non-professional (n = 77) players in adulthood. In

  6. Leadership power perceptions of soccer coaches and soccer players according to their education.

    Science.gov (United States)

    Konter, Erkut

    2012-10-01

    The purpose of this study was to analyze the leadership power perceptions of soccer coaches and soccer players according to their educational levels. Data were collected from 165 male soccer coaches and 870 male soccer players. Adapted versions of the "Power in Soccer Questionnaire-Other", the "Power in Soccer Questionnaire-Self" and an "information form" were used for data collection, and collected data were analyzed by the Kruskal-Wallis and the Mann-Whitney Tests. Analysis of the Power in Soccer Questionnaire-Other revealed significant differences between soccer players' level of education and their perception of Coercive Power (pleadership powers between coaches and players might create communication and performance problems in soccer.

  7. Does playing experience improve coaching? An exploratory study of perceptual-cognitive skill in soccer coaches

    Directory of Open Access Journals (Sweden)

    Anna eGrundel

    2013-03-01

    Full Text Available In many sports, it is common for top coaching positions to be held by former players; however, despite the natural progression in many sports for skilled players to become high-level coaches, we have little understanding of how playing may develop useful skills for coaching. In this study we considered perceptual-cognitive skill across groups of high and low skilled soccer players and soccer coaches. A range of perceptual-cognitive variables was measured in an attempt to capture the diverse skills related to expertise in sport and coaching. Generally, results highlighted similarities between coaches and players on some tasks and differences on others.

  8. Developing soccer coaches in South Africa through mentoring ...

    African Journals Online (AJOL)

    This investigation was undertaken to establish soccer coaches' views and experiences with regard to mentoring as a way of developing their skills and knowledge. The authors conducted a qualitative phenomenological study with seven purposively selected participants (coded as M1 – M7) who were involved in soccer ...

  9. Coaching Discourse: Supporting Teachers' Professional Learning

    Science.gov (United States)

    Heineke, Sally F.

    2013-01-01

    Although coaching is used in many schools to facilitate teachers' professional learning, few studies look closely at coaching discourse. Exploring how coaching facilitates teachers' professional development, this study used tape-recorded coaching sessions and individual post-interviews to examine the one-on-one coaching interactions of 4…

  10. An Eye for Talent:Talent Identification and Practical Sense of Top-level Soccer Coaches

    OpenAIRE

    Christensen, Mette Krogh

    2009-01-01

    The purpose of this study is to explore how top-level soccer coaches identify talent. I draw on Bourdieu's work to challenge a commonly held assumption that talent identification is a rational or objective process. Analysis of in-depth interviews with eight coaches of national youth soccer teams indicated these coaches identified talent in three ways. Firstly, coaches use their practical sense and their visual experience to recognize patterns of movement among the players. Secondly, the coach...

  11. GPS and Injury Prevention in Professional Soccer.

    Science.gov (United States)

    Ehrmann, Fabian E; Duncan, Craig S; Sindhusake, Doungkamol; Franzsen, William N; Greene, David A

    2016-02-01

    This study investigated the relationship between GPS variables measured in training and gameplay and injury occurrences in professional soccer. Nineteen professional soccer players competing in the Australian Hyundai A-League were monitored for 1 entire season using 5 Hz Global Positioning System (GPS) units (SPI-Pro GPSports) in training sessions and preseason games. The measurements obtained were total distance, high-intensity running distance, very-high-intensity running distance, new body load, and meters per minute. Noncontact soft tissue injuries were documented throughout the season. Players' seasons were averaged over 1- and 4-week blocks according to when injuries occurred. These blocks were compared with each other and with players' seasonal averages. Players performed significantly higher meters per minute in the weeks preceding an injury compared with their seasonal averages (+9.6 and +7.4% for 1- and 4-week blocks, respectively) (p Football Association regulations, the results of this study isolated 2 variables predicting soft tissue injuries for coaches and sports scientists to consider when planning and monitoring training.

  12. Exploring Biographical Learning in Elite Soccer Coaching

    Science.gov (United States)

    Christensen, Mette Krogh

    2014-01-01

    Qualified and skilled sport coaches are vital to the development of sport in general and of elite sport in particular. Research suggests that the development of coaching expertise in elite sport is a complex matter involving mediated, unmediated and internal learning situations. However, it is less clear to what extent and in which ways these…

  13. Assessment and Accountability in Youth Soccer: How Parents Grade Coaching, Refereeing, and the Soccer Infrastructure

    Science.gov (United States)

    Duffus, Lee

    2012-01-01

    The term accountability is used extensively in performance management. In youth soccer, accountability is often discussed in the context of issues such as quality of coaching, officiating, responsiveness to stakeholders, scheduling of games, building parental involvement and support, and philosophical orientation to the sport. As part of the…

  14. Injury prevention exercise programmes in professional youth soccer: understanding the perceptions of programme deliverers

    Science.gov (United States)

    O'Brien, James; Finch, Caroline F

    2016-01-01

    Background There are well-known challenges to implementing injury prevention strategies in amateur soccer, but information from other soccer settings is scarce. This cross-sectional survey analysed the injury prevention perceptions of soccer coaches, fitness coaches and physiotherapists from 4 male teams in a professional youth soccer academy. Methods The respondents (n=18) completed a web-based survey relating to lower limb (LL) soccer injuries, the value and practicality of injury prevention exercise programmes (IPEPs) in general and, more specifically, the IPEP endorsed by FIFA, the FIFA 11+. Results There were very high levels of agreement regarding players’ susceptibility to LL injury and the seriousness of these injuries. Respondents agreed unanimously that players should perform evidence-based injury prevention exercises. Despite 61% of respondents having previously heard of the FIFA 11+, just 6% reported current use of the full programme, with a further 22% reporting modified use. 22% believed the FIFA 11+ contained adequate variation and progression for their team and 78% felt it needed improvement. Respondents identified multiple barriers and facilitators to maintaining IPEPs, relating either to the programme content (eg, exercise variation), or the delivery and support of the programme (eg, coach acceptance). Conclusions The coaches, fitness coaches and physiotherapists of professional youth teams support the use of IPEPs, but enhancing their impact requires tailoring of programme content, along with adequate delivery and support at multiple levels. The findings suggest that the FIFA 11+ needs modification for use in professional youth soccer teams. PMID:27900158

  15. Winning in NCAA Women?s Soccer: Does the Gender of the Coach Matter?

    Science.gov (United States)

    Brush, Brian C.; Naples, Gregory J.

    2011-01-01

    While women's intercollegiate soccer has grown rapidly over the past three decades, men still hold nearly two-thirds of all head coaching positions in NCAA Division I women's soccer programs. This paper explores whether the gender of the head coach affects success in winning games. After considering various reasons why gender might matter, we…

  16. Danish health professionals' experiences of being coached

    DEFF Research Database (Denmark)

    Ammentorp, Jette; Jensen, Hanne I; Uhrenfeldt, Lisbeth

    2013-01-01

    In recent years, coaching, as a supplement to professional development, has received increased attention, especially in nursing. Still, only little is known about how health professionals experience participating in coaching sessions. The purpose of this pilot study was to describe and analyze...

  17. "Studentship" and "Impression Management" in an Advanced Soccer Coach Education Award

    Science.gov (United States)

    Chesterfield, Gavin; Potrac, Paul; Jones, Robyn

    2010-01-01

    The purpose of this study was to investigate how coaches perceived and responded to the content knowledge and assessment processes that they were exposed to during an advanced level soccer coaching award programme. In-depth interviews were conducted with six coaches who had successfully completed the Union of European Football Associations (UEFA)…

  18. The Sports Background, Personality, Att Itudes, and Social Competencies of Coaches and Assistant Coaches in the Just Soccer Program for Pupils with Intellectual Disabilities

    OpenAIRE

    Schliermann Rainer; Stolz Isabel; Anneken Volker

    2014-01-01

    Purpose. The purpose of this study was to empirically analyze the sports background, personality dimensions, attitudes, and social competencies of adult head coaches and young assistant coaches involved in the German Einfach Fußball (Just Soccer) program, which promotes the participation of pupils with intellectual disabilities in soccer/sports and society. Methods. The study recruited 28 head coaches and 29 assistant coaches who completed a questionnaire battery of standardized instruments (...

  19. The Prevalence of Injuries in Professional Turkish Soccer Players

    Science.gov (United States)

    Yamaner, Faruk; Gumusdag, Hayrettin; Kartal, Alparslan; Gumus, M.; Gullu, A.; Imamoglu, O.

    2011-01-01

    Study aim: To assess the prevalence and anatomical sites of injuries in professional soccer players in one game season. Material and methods: A cohort of 510 professional male soccer players consisting of 48 goalkeepers, 194 defence players, 189 mid-field players and 79 forward players of the 1st and 2nd Turkish Professional Soccer Leagues in…

  20. Injury Prevention Exercise Programs for Professional Soccer: Understanding the Perceptions of the End-Users.

    Science.gov (United States)

    OʼBrien, James; Finch, Caroline F

    2017-01-01

    To evaluate the perceptions of professional soccer players and staff members toward injury prevention exercise programs (IPEPs). Self-report survey. Four professional soccer teams in 4 different countries. 126 players, coaches, physiotherapists, and fitness coaches were invited to participate, with 72 respondents. Web-based survey detailing perceptions of lower limb (LL) injury susceptibility and seriousness, the value of IPEPs in general, and more specifically the International Federation of Association Football (FIFA) 11+. The vast majority of the respondents believed that professional soccer players are at high risk of LL injuries (93%) and that players should perform evidence-based injury prevention exercises (98%). They also agreed that LL injuries can shorten a player's career (85%), cause physical problems later in life (82%), and negatively impact on team performance (77%). However, perceptions varied across teams regarding which types of injury prevention exercises are effective, who holds responsibility for injury prevention, and when IPEPs should be performed. Specific knowledge of the FIFA 11+ was very low and 47% of respondents believed the program would need modification for use in their team. Players and staff members in professional soccer teams strongly support the use of evidence-based IPEPs. However, perceptions vary considerably between teams regarding which exercises can prevent injuries, who holds the responsibility for injury prevention, and when preventive exercises should be performed. Enhancing the ultimate impact of IPEPs in professional soccer requires a detailed understanding of each team's specific implementation context.

  1. The delivery of injury prevention exercise programmes in professional youth soccer: Comparison to the FIFA 11.

    Science.gov (United States)

    O'Brien, James; Young, Warren; Finch, Caroline F

    2017-01-01

    Injury prevention exercise programmes for amateur soccer have gained considerable attention, but little is known about their relevance and adaptability to professional soccer settings. The first aim of this study was to evaluate the delivery and content of injury prevention exercise programmes used by professional youth soccer teams, compared to the industry standard injury prevention exercise programme for soccer, the Fédération Internationale de Football Association's FIFA 11+. The second aim was to document specific challenges to implementing injury prevention exercise programmes in this context. Prospective observational study. The participants were soccer coaches, fitness coaches and physiotherapists (n=18) from four teams in a professional youth soccer academy. Each team's chosen injury prevention exercise programmes were observed weekly across an entire soccer season (160 sessions). The delivery and content of the programmes were documented on a standardised worksheet and compared to the FIFA 11+. Specific implementation challenges were recorded. Fitness coaches were the primary deliverers of injury prevention exercise programmes, with support from physiotherapists. Multiple delivery formats and locations were employed, along with the extensive use of equipment. Across all injury prevention exercise programme sessions, a median of one FIFA 11+ exercise was performed in its original form and a further four in a modified form. Implementation challenges included poor staff communication, competing training priorities and heavy game schedules. Although the basic components of the FIFA 11+ hold relevance for professional youth male teams, the delivery and content of injury prevention exercise programmes require considerable tailoring for this context. Recognising this will inform the development of improved, context-specific injury prevention exercise programmes, along with corresponding strategies to enhance their implementation. Copyright © 2016 Sports

  2. How coaches use their knowledge to develop small-sided soccer ...

    African Journals Online (AJOL)

    The method employed by coaches when designing small-sided soccer games has had limited attention from the scientific community. Therefore, the aim of this study was to undertake a case study where one expert coach was interviewed and tasked with designing and justifying four different small-sided games (SSG) for ...

  3. Short-Term Effects of Midseason Coach Turnover on Team Performance in Soccer

    Science.gov (United States)

    Balduck, Anne-Line; Buelens, Marc; Philippaerts, Renaat

    2010-01-01

    The present study addressed the issue of short-term performance effects of midseason coach turnover in soccer. The goal of this study was to examine this effect on subsequent short-term team performance. The purposes of this study were to (a) examine whether midseason coach turnover improved results in the short term, and (b) examine how team…

  4. Automatic Statistics Extraction for Amateur Soccer Videos

    NARCIS (Netherlands)

    van Gemert, J.C.; Schavemaker, J.G.M.; Bonenkamp, K.; Spink, A.J.; Loijens, L.W.S.; Woloszynowska-Fraser, M.; Noldus, L.P.J.J.

    2014-01-01

    Amateur soccer statistics have interesting applications such as providing insights to improve team performance, individual coaching, monitoring team progress and personal or team entertainment. Professional soccer statistics are extracted with labor intensive expensive manual effort which is not

  5. Parental and coach support or pressure on psychosocial outcomes of pediatric athletes in soccer.

    Science.gov (United States)

    Ommundsen, Yngvar; Roberts, Glyn C; Lemyre, Pierre-Nicolas; Miller, Blake W

    2006-11-01

    The purpose of this article was to examine supportive and/or pressuring influences of parents and coaches on young athletes' maladaptive perfectionist tendencies, relationships to friends, and competency perceptions in soccer. Previous research has revealed that parents and coaches may give rise to both enjoyable and stressful sport experiences for the pediatric athlete and that parents and coaches are thus able to influence whether young people decide to quit sport or continue participating. Less is known about the relation of supportive versus pressuring parental and coach behaviors on the quality of athletes' achievement striving, relationships to friends in sport, and their competence perceptions. Such knowledge may help create a better psychological sport experience for pediatric athletes. A questionnaire-based cross-sectional field study was carried out among 677 young Norwegian soccer players (aged 10 to 14 years; 504 boys, 173 girls; mean age: boys = 11.9 years, SD = 2.9; girls = 11.2 years, SD = 2.1) taking part in the Norway Cup international youth soccer tournament in 2001. Multivariate analysis of variance (MANOVA) with follow-up canonical correlation was used to examine multivariate relationships between supportive and pressuring behavior and athletes' psychosocial experiences. Joint pressuring behaviors from parents and coaches related positively to maladaptive achievement striving, as indicated by overconcern for mistakes, doubt about one's soccer actions, and lowered perceptions of soccer competence. Mirroring these findings, predominantly supportive coach-created psychological climates were related to a linear pattern of psychological outcomes comprising high-quality friendships, positive competency perceptions, and the absence of specific worries related to achievement striving. Supportive, mastery-oriented coach influence seems beneficial for constructive psychosocial outcomes in pediatric athletes, and athletes experiencing a joint social

  6. A Comparison of Players' and Coaches' Perceptions of the Coach-Created Motivational Climate within Youth Soccer Teams.

    Science.gov (United States)

    Møllerløkken, Nina Elise; Lorås, Håvard; Pedersen, Arve Vorland

    2017-01-01

    The coach-created motivational climate within youth sports teams has been shown to be of great importance for the quality of youths' sports experiences as well as their motivation for continuing or discontinuing sport participation. While the player's perspective on motivational climates has been studied extensively, the coach's perspective has received considerably less attention. Thus, little is known about the concordance of perceptions of the motivational climate between coaches and their players, or the lack thereof. The purpose of the present study was to directly compare players' and coaches' perceptions of the motivational climate within their respective teams. To this end, 256 male and female soccer players (15-17 years of age) from 17 different teams and their coaches (n = 29) responded to the Perceived Motivational Climate in Sports Questionnaire-2 (PMCSQ-2). The study design included responses from both coaches and players to the same questionnaire, and both groups were aware of the other part's participation. Statistical analyses revealed significant differences between players' and coaches' perceptions of the motivational climate. Specifically, players of both sexes perceived the motivational climate to be significantly more performance-oriented and significantly less mastery-oriented compared with the coaches. These findings may advance our understanding of the coach-athlete relationship, and may be of importance for understanding players' motivation for persistence or discontinuation of the sport.

  7. Coaching as Professional Learning: Guidance for Implementing Effective Coaching Systems

    Science.gov (United States)

    Vermont Agency of Education, 2016

    2016-01-01

    To build collective capacity within organizations, schools and districts across the world have implemented coaching as an effective method for systemic reform. Vermont in particular has a wide variety of coaches, including instructional coaches and systems coaches, as well as a variety of interpretations of the coaching practice. Many schools…

  8. The Sports Background, Personality, Att Itudes, and Social Competencies of Coaches and Assistant Coaches in the Just Soccer Program for Pupils with Intellectual Disabilities

    Directory of Open Access Journals (Sweden)

    Schliermann Rainer

    2014-09-01

    Full Text Available Purpose. The purpose of this study was to empirically analyze the sports background, personality dimensions, attitudes, and social competencies of adult head coaches and young assistant coaches involved in the German Einfach Fußball (Just Soccer program, which promotes the participation of pupils with intellectual disabilities in soccer/sports and society. Methods. The study recruited 28 head coaches and 29 assistant coaches who completed a questionnaire battery of standardized instruments (NEO Five-Factor Inventory, Interpersonal Reactivity Index, Social Self-Efficacy as well as self-developed instruments. Analysis of the data involved descriptive and inferential statistical procedures. A descriptive comparison of the assistant coaches with a normative sample of males aged 16-20 years was performed. Results. The head coaches were found with little soccer/sports experience with persons with disabilities prior to participation in the Just Soccer program. However, the majority were familiar with these persons through personal/vocational contacts. Overall, the head coaches were differentiated by formal coaching levels and playing backgrounds, with very few holding any additional formal qualifications in special education. The assistant coaches presented below average scores in the analyzed five personality dimensions when compared with the normative sample. Their attitudes and social competencies did not change during their 8-month involvement in Just Soccer. Conclusions. The findings highlight the important role of the coaching staff in the success of the Just Soccer program. Coaches involved in such activities should be familiarized with needs of people with disabilities, be stress-resistant, and possess a balanced set of personality traits. In addition, the results suggest that such individuals should be coaches/players from conventional soccer clubs instead of special school physical education teachers.

  9. Psychological Characteristics in Talented Soccer Players - Recommendations on How to Improve Coaches' Assessment.

    Science.gov (United States)

    Musculus, Lisa; Lobinger, Babett H

    2018-01-01

    Psychological characteristics, including personality traits and psychological skills, have been shown to be relevant predictors of soccer performance. In research, general and sport specific standardized self-report questionnaires have been applied in psychological diagnostics of sports talent. However, with regard to the assessment of psychological characteristics of talented soccer players, a gap between research and practice is apparent. While soccer clubs often ask their coaches to assess their players on self-designed, unevaluated scouting sheets, research widely neglects expert coaches' and clubs' perspectives on relevant performance characteristics. As we believe that expert coaches' assessments could be a valid predictor of a player's current performance and future success, we provide recommendations on how to improve coaches' assessment of psychological characteristics. As the quality of the assessment of psychological characteristics is crucial, we provide recommendations on how to ensure the central diagnostic standards: objectivity, reliability, and validity in talent assessment. Further, we argue that assessing psychological characteristics should combine self ratings of players and external ratings of coaches in talent development. Sport psychologists should assist clubs and coaches in improving the diagnostics of psychological characteristics as well as in embedding psychological diagnostics and interventions in the talent development process.

  10. Soccer and homosexuality: The conflicts that lie within the affective game of the coach-adolescent athlete relationship

    Directory of Open Access Journals (Sweden)

    Altair Moioli

    2014-12-01

    Full Text Available Discussions regarding homosexuality within a sports context are mediated by emotional nuances, especially in the world of soccer, where practitioners are required to have attributes such as strength, masculinity and aggressiveness. As a consequence, this work aimed to analyze the symbolic representation of homosexual relationships between adolescent soccer players and their coaches; and, furthermore, to understand the intention behind homoerotic relationships that are established between members of the management team and its players. In this study, researchers used the life history methodology, with participation from three adolescent athletes, ages 14, 15 and 16, and three former athletes, ages 26, 28 and 45, who we called speakers. Based on the collection and analysis of research participants' testimonies, homosexual relations were found to have occurred between athletes and coaches, or between athletes and other members of the management team, as a part of a "social contract" that is exclusively linked to their professional objectives. These relationships appear to be purely objective; authentic affective links are absent, due apparently to the transient nature of the athletes in these groups. Too, this context is usually marked by the athlete's physical and emotional vulnerability, and the agreements he makes within this context are accompanied with moral dilemmas, because such adolescents idealize the coach as a paternal archetype.

  11. Negotiating Gender in Professional Soccer: An Analysis of Female Footballers in the United States

    Directory of Open Access Journals (Sweden)

    Elsa Kristiansen

    2014-04-01

    Full Text Available Youth soccer is thriving in the United States but the coun- try's professional soccer leagues over the past couple decades have had mixed results in terms of commercial viability with some leagues surviving (e.g., MLS and others ceasing (e.g., WUSA. While scholars and practitioners may offer explanations regarding the reasons for the specific challenges facing women's professional soccer leagues, the pre- sent study looked at this subject by examining one group of stakeholders - female elite athletes - and the players’ perceptions of gender in the USA professional soccer program. The findings of this qualitative analysis were concentrated in- to three interconnected themes. The first theme involved the participants' perceptions of role models and their socialization as soccer players. Media images and the invisibility of the female athlete formed the second theme. The third theme was the sexualization of elite female bodies and transgressions of compulsory heterosexuality boundaries. The analysis of the interviews revealed an interesting paradox of elite female athletes using gender to understand sports. The inter- viewed athletes used stereotypical notions of masculinity to increase their legitimacy as elite athletes, while at the same time devaluing the abilities of female coaches by using stereotypical notions of femininity. In addition to discussing the empirical results and interconnected themes, the implications of the findings are also detailed.

  12. Individual, team, and coach predictors of players' likelihood to aggress in youth soccer.

    Science.gov (United States)

    Chow, Graig M; Murray, Kristen E; Feltz, Deborah L

    2009-08-01

    The purpose of this study was to examine personal and socioenvironmental factors of players' likelihood to aggress. Participants were youth soccer players (N = 258) and their coaches (N = 23) from high school and club teams. Players completed the Judgments About Moral Behavior in Youth Sports Questionnaire (JAMBYSQ; Stephens, Bredemeier, & Shields, 1997), which assessed athletes' stage of moral development, team norm for aggression, and self-described likelihood to aggress against an opponent. Coaches were administered the Coaching Efficacy Scale (CES; Feltz, Chase, Moritz, & Sullivan, 1999). Using multilevel modeling, results demonstrated that the team norm for aggression at the athlete and team level were significant predictors of athletes' self likelihood to aggress scores. Further, coaches' game strategy efficacy emerged as a positive predictor of their players' self-described likelihood to aggress. The findings contribute to previous research examining the socioenvironmental predictors of athletic aggression in youth sport by demonstrating the importance of coaching efficacy beliefs.

  13. Precursor activities to expertise perceived by pre-service soccer coaches

    Directory of Open Access Journals (Sweden)

    Mikel Cepeda Lemus

    2013-07-01

    Full Text Available The main objective of this study was to analyze the perception of soccer pre-service coaches about training activities that promote skills acquisition of soccer players. 76 pre-service coaches participated (M age = 24.6 years old. This perception was assessed through a valid questionnaire used in previous studies whose results show that for these pre-service coaches, the best activity to improve performance are competition matches. This result highlight highlights the need to develop training activities simulating competition requirements. Also it was found that exist a great relationship between effort and concentration required in training activities to contribute to the athletes performance. Concentration and effort should be features that need to be present continuously in training activities to develop expertise.

  14. Toward effective forecast of professionally important sensorimotor cognitive abilities of young soccer players.

    Science.gov (United States)

    Ljach, V; Witkowski, Z; Gutnik, B; Samovarov, A; Nash, D

    2012-04-01

    Development of skill in young soccer players relies on progressive improvement in different professionally important sensorimotor cognitive abilities. Development of seven leading abilities was based on the results of 23 tests provided for experimental and control groups. 600 elite young soccer players of both sexes, ages 11 to 19 years, were assessed over a period of 4 years. Experimental groups were given different exercises to aid development of selected abilities. At the end of the monitoring period, the experimental groups demonstrated a significant improvement in contrast to the control groups, and the greatest improvements in different test performances were observed in the 11- to 13-year-olds. The test-retest ata show the testing process to be reliable. The study provides standard pedagogical models and data for trainers, coaches, and researchers working with young soccer players. Future research on talent identification and selection should adopt amultidimensional approach.

  15. The influence of coach reputation on the behavioral responses of male soccer players.

    Science.gov (United States)

    Manley, A J; Greenlees, I A; Smith, M J; Batten, J; Birch, P D J

    2014-04-01

    The present study examined the impact of reputation information on athletes' behavioral responses to coaches within a naturalistic, field-based setting. Using a between-group design, male soccer players (n = 35) were assigned to one of three experimental conditions (i.e., experienced reputation, inexperienced reputation, no reputation) prior to taking part in a coaching session delivered by an unknown coach. Participants' behaviors indicative of attention to coach instruction, effort and persistence, and willingness to participate in demonstrations were video recorded throughout the coaching session. Multivariate analyses of variance revealed that participants in the experienced reputation condition exhibited significantly greater attention to coach instruction, and greater effort and persistence during free practice than participants in the inexperienced reputation condition. Results related to participants' willingness to participate in demonstrations failed to yield any significant differences. The results provide further evidence to support the contention that athletes use reputation information as a basis for their initial expectancies of coaches, and such expectancies have the potential to influence athletes' behavior during coach-athlete interactions. The findings also indicate that expectancies based on positive information may be more powerful than negatively framed expectancies, and can be harnessed by coaches as a means of developing effective relationships with their athletes. © 2013 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  16. Instructional Coaching as High-Quality Professional Development

    Science.gov (United States)

    Desimone, Laura M.; Pak, Katie

    2017-01-01

    In response to policy initiatives calling for the implementation of evidence-based classroom practice, instructional coaches are frequently utilized as providers of professional development (PD). Despite the demand for instructional coaches, there is little empirical evidence that coaching improves teacher practice. We address this limitation by…

  17. Sources of stress in South African soccer coaches | Surujlal | African ...

    African Journals Online (AJOL)

    It has been noted that coaches face a number of challenges, frustrations, conflicts and tensions, most of which translate into perceived stress. With the re-entry of South Africa into the international sporting arena, little is known about South African coaches and what specific stresses they experience. Thus, the present study ...

  18. Voice, stress, work and quality of life of soccer coaches and physical trainers.

    Science.gov (United States)

    Penteado, Regina Zanella; Silva, Noelle Bernardi da; Montebello, Maria Imaculada de Lima

    2015-01-01

    To assess aspects related to work, stress and quality of life related to voice in soccer coaches (C) and physical trainers (T), comparing the categories. Qualitative and quantitative studies with 13 C and 13 T of teams competing in Phase One of the highest level (Série A ) of the 2012 Campeonato Paulista (São Paulo State Soccer Championship). The questions were open ended and related to complaints, difficulties, and/or problems regarding voice use during work and to the relations between voice, work, stress, and quality of life. Stress at work was analyzed by the Job Stress Scale (JSS) questionnaire. The perception of the impact of the voice on quality of life was evaluated by the Voice-Related Quality of Life (V-RQOL) protocol. The answers to the questions were transcribed and submitted to content analysis, and regarding the questionnaire, descriptive data and analytical statistics were used. Content analysis showed lack of preparation for voice care; voice complaints; and intense vocal use demand under stressful work, in addition to the absence of healthy habits and social/family support. The JSS dimensions showed that the Active Work situation and the high V-RQOL scores are compatible with vocal health without complaints. There were no statistical differences between the categories. Both categories reported complaints/problems linked to professional voice use and stressful workload. However, the perception of vocal impact on the quality of life was positive, and the analysis of stress at work resulted in "good" and favorable conditions. The relationship between voice, work, stress, and quality of life in both the categories require further investigations.

  19. Retirement planning among South African professional soccer players

    African Journals Online (AJOL)

    While retirement traditionally occurs for most non-athletes after a long working career that allows them to plan and anticipate the likely demands and ... It is therefore important for soccer clubs and agents to assist professional soccer players in career counselling to be both mentally and financially prepared for retirement.

  20. Some factors in sanctions for unsportsmanlike behavior of players and coaches in youth soccer.

    Science.gov (United States)

    Olmedilla, Aurelio; Lozano, Francisco J; Ato, Manuel; Garcés de los Fayos, Enrique; Ortega, Enrique

    2009-06-01

    Reasons and motives for sanctions imposed on players and coaches in youth soccer were examined to evaluate frequency and type of infraction by competition category (Under 12, 13-14, 15-16, and 17-18 years). Analysis of the first 30% of competitions yielded 1,202 sanctions of 340 teams with 6,120 players and 340 coaches. For older groups, the number of sanctions for aggressive conduct by the players was significantly higher; frequency of sanctions imposed on the coaches for disrespect also was significantly higher, and those for aggression were higher although not significantly so; the number of sanctions for disrespect by players was not different. Transgressions of the game rules recorded by officials are a valid representation of a pedagogical factor important for coaches and players. Implementing informative programs for knowledge and conduct of rules is suggested.

  1. The management of professional sport coaches in South Africa ...

    African Journals Online (AJOL)

    This paper presents the results of a study on human resources managers and professional sport coaches at sport organizations in South Africa. It focuses specifically on the management of professional coaches. The methodology involved an extensive literature survey, structured in-depth interviews and the administration ...

  2. Extended stereopsis evaluation of professional and amateur soccer players and subjects without soccer background

    Science.gov (United States)

    Paulus, Jan; Tong, Jie; Hornegger, Joachim; Schmidt, Michael; Eskofier, Björn; Michelson, Georg

    2014-01-01

    Stereopsis is one of several visual depth cues. It has been evaluated for athletes of different types of sports in the past. However, most studies do not cover the full range of stereopsis performance. Therefore, we propose computer-supported stereopsis tests that provide an extended assessment and analysis of stereopsis performance including stereo acuity and response times. By providing stationary and moving stimuli they cover static and dynamic stereopsis, respectively. The proposed stereopsis tests were used to compare professional and amateur soccer players with subjects without soccer background. The soccer players could not perform significantly (p ≤ 0.05) superior than the subjects without soccer background. However, the soccer players showed significantly (p ≤ 0.01) superior choice reaction times for monocular stimuli. The results are in congruence with previous findings in literature. PMID:25368596

  3. Extended Stereopsis Evaluation of Professional and Amateur Soccer Players and Subjects without Soccer Background

    Directory of Open Access Journals (Sweden)

    Jan ePaulus

    2014-10-01

    Full Text Available Stereopsis is one of several visual depth cues. It has been evaluated for athletes of different types of sports in the past. However, most studies do not cover the full range of stereopsis performance. Therefore, we propose computer-supported stereopsis tests that provide an extended assessment and analysis of stereopsis performance including stereo acuity and response times. By providing stationary and moving stimuli they cover static and dynamic stereopsis. The proposed stereopsis tests were used to compare professional and amateur soccer players with subjects without soccer background. The soccer players could not perform significantly (p <= 0.05 superior than the subjects without soccer background. However, the soccer players showed significantly (p <= 0.01 superior choice reaction times for monocular stimuli. The results are in congruence with previous findings in literature.

  4. Motives influencing soccer coaching: An empirical study of ...

    African Journals Online (AJOL)

    Heightened competition both on a global and national level has raised the bar regarding the expectations that sport organisations have of their coaches. Using the Self-Determination Theory (SDT), which emphasizes the distinction between intrinsically- and extrinsically- driven behaviours, the current study investigated the ...

  5. Professional Development: Identifying Effective Instructional Coaching Activities

    Science.gov (United States)

    Mannino, Gina

    2014-01-01

    The purpose of this study was to identify the instructional coaching activities most used by instructional coaches in southeast Texas school districts and to test if there was a relationship between the use of instructional coaching and perceived improvement in the instructional practices of teachers and student achievement. The participants for…

  6. Effects of an Interpersonal Style Intervention for Coaches on Young Soccer Players’ Motivational Processes

    Directory of Open Access Journals (Sweden)

    Pulido Juan J.

    2017-10-01

    Full Text Available The main goal of the study was to assess the effects of an intervention programme developed with soccer coaches, based on promoting strategies to optimise the satisfaction of the basic psychological needs of athletes. Eight soccer coaches, aged between 19 and 50 years (M = 32.5; SD = 14.34, participated in the study. They were selected intentionally (without academic or federative training and divided equally into a control and an experimental group by random peer selection. Also, 109 soccer players, aged between 11 and 15 years (M = 13.78; SD = 1.38, divided into a control group (CG; n = 56 and an experimental group (EG; n = 53, participated in the experiment. The training programme (12 hours was aimed to develop methodological and motivational strategies to promote autonomy, competence and relatedness need satisfaction among the players. The results showed that the participants in the EG decreased competence and relatedness control, while significantly increased (post-intervention competence and relatedness needs satisfaction. Moreover, values for the EG did not decrease for autonomy, competence frustration and amotivation, while they increased for the sport commitment. Also, intrinsic motivation decreased in both groups (greater decrease in the CG. In conclusion, we can affirm the effectiveness of the training programme to create an environment of “bright side” motivation, and reduce thwarting styles, needs frustration and low self-determination levels.

  7. Heart Rate Variability Discriminates Competitive Levels in Professional Soccer Players.

    Science.gov (United States)

    Proietti, Riccardo; di Fronso, Selenia; Pereira, Lucas A; Bortoli, Laura; Robazza, Claudio; Nakamura, Fabio Y; Bertollo, Maurizio

    2017-06-01

    Heart rate variability (HRV) has been increasingly used to monitor team sports athletes. Besides the traditional time domain indices (i.e., the SD of successive RR intervals [SDNN] and the root mean square difference of successive normal RR intervals [RMSSD]), recently the use of the stress score (SS), which is an inverse function of the SD2 index derived from the Poincaré plot, and the sympathetic/parasympathetic ratio (S/PS) to monitor soccer players has been proposed. However, the reliability of these new indices and the ability of HRV to differentiate between soccer competitive levels are unknown. The aim of this study was to analyze the reliability of the different HRV-derived indices in professional soccer players during the competitive period and to compare HRV of professional soccer players from 3 teams of distinct competitive levels (i.e., Italian Second Division [2D], European League [EL], and Champions League [CL]). Fifty-four male professional soccer players from 3 different teams of 2 European countries (Italy and Germany) participated in the study. The intraclass correlation coefficient values of the HRV indices varied from 0.78 (very large) to 0.90 (near perfect). The coefficient of variation (CV) values for RMSSD and SDNN were all soccer players and is able to differentiate between international- and national-level players.

  8. In-season training periodization of professional soccer players

    Directory of Open Access Journals (Sweden)

    A Los Arcos

    2017-04-01

    Full Text Available The aim of this study was to quantify the seasonal perceived respiratory and muscular training loads (i.e., sRPEres-TL and sRPEmus-TL completed by elite-oriented young professional soccer players. Twentyfour players (20.3 ± 2.0 years belonging to the same reserve team of a Spanish La Liga club participated in this study. Only the players that were available to train for a whole week with the team and also to play the weekly game were considered: Starters, players that participated in the match for at least 45 min and Non- Starters, players that did not participate or played less than 45 minutes in the match. The competitive period was analysed after the division into 5x6-8 week blocks and 35x1 week microcycles. Data were also analysed with respect to number of days before the immediate match. Weekly TL variation across the in-season blocks was trivial-small for both groups except between Block 2 and Block 3 (ES= moderate. Substantial TL differences (ES= small–very likely were found between training days, the TL pattern being a progressive increase up to MD-3 followed by a decrease until MD-1. Except for the match, sRPEres-/sRPEmus-TL was very similar between Starters and Non-Starters. In summary, perceived TL across the season displayed limited variation. Coaches periodized training contents to attain the highest weekly TL 72 hours before the match to progressively unload the players between MD-3 and the match day. The data revealed that the TL arising from the weekly game was solely responsible for the observed higher weekly TL of Starters in comparison with Non-Starters.

  9. THE MANAGEMENT AND THE PROFESSIONAL STRUCTURE OF THE YOUTH SOCCER ASSOCIATION: a view in the countryside of Rio Grande do Sul

    Directory of Open Access Journals (Sweden)

    Fábio Augusto Sfoggia Verardi

    2014-07-01

    Full Text Available Abstract: This qualitative study, of descriptive and exploratory manner, aims to determine the formation of youth soccer association structure in the professional soccer clubs in the Rio Pardo and Taquari valleys, in order to modernize the sport nowadays. The subjects of this study are five male administrators of different soccer clubs. The results show that in four of these clubs, the work with youth soccer association is recent, covering only the categories for children, junior and youth with various forms of admissions; but all coaches believe in the commitment of such work. It is observed that its main objective is to train athletes in this association to supply the professional team, without, however, a usual line of tactical system to be observed at different levels. The sponsorship is the main income source for the maintenance of these activities, not being exploited for the dissemination and marketing initiatives. All clubs have trained athletes from the youth soccer association playing in their professional teams, but only one club indicated some indices of those players who were sold or borrowed to other clubs. Thus, it shows that the youth soccer association has received some attention from the sports administrators, but there is still the lack of a better professional management on it, developing its various aspects. So, it could provide more satisfactory results, as a profitable alternative to prepare players for professional teams. Keywords: soccer; structure; clubs, training of athletes.

  10. Human resources management of professional sports coaches in ...

    African Journals Online (AJOL)

    The success that sport organizations can achieve is largely depends on the ability and competence of their human resources. Amongst the paid professional employees in sport is the professional coach who has received relatively little academic enquiry since commercial and professional sport emerged in the 21st century.

  11. Personal, Professional Coaching: Transforming Professional Development for Teacher and Administrative Leaders

    Science.gov (United States)

    Patti, Janet; Holzer, Allison A.; Stern, Robin; Brackett, Marc A.

    2012-01-01

    This article makes the case for a different approach to the professional development of teachers and school leaders called personal, professional coaching (PPC). Personal, professional coaching is grounded in reflective practices that cultivate self-awareness, emotion management, social awareness, and relationship management. Findings from two…

  12. Lower-extremity strength ratios of professional soccer players according to field position.

    Science.gov (United States)

    Ruas, Cassio V; Minozzo, Felipe; Pinto, Matheus D; Brown, Lee E; Pinto, Ronei S

    2015-05-01

    Previous investigators have proposed that knee strength, hamstrings to quadriceps, and side-to-side asymmetries may vary according to soccer field positions. However, different results have been found in these variables, and a generalization of this topic could lead to data misinterpretation by coaches and soccer clubs. Thus, the aim of this study was to measure knee strength and asymmetry in soccer players across different field positions. One hundred and two male professional soccer players performed maximal concentric and eccentric isokinetic knee actions on the preferred and nonpreferred legs at a velocity of 60° · s. Players were divided into their field positions for analysis: goalkeepers, side backs, central backs, central defender midfielders, central attacking midfielders, and forwards. Results demonstrated that only goalkeepers (GK) differed from most other field positions on players' characteristics, and concentric peak torque across muscles. Although all players presented functional ratios of the preferred (0.79 ± 0.14) and nonpreferred (0.75 ± 0.13) legs below accepted normative values, there were no differences between positions for conventional or functional strength ratios or side-to-side asymmetry. The same comparisons were made only between field players, without inclusion of the GK, and no differences were found between positions. Therefore, the hamstrings to quadriceps and side-to-side asymmetries found here may reflect knee strength functional balance required for soccer skills performance and game demands across field positions. These results also suggest that isokinetic strength profiles should be considered differently in GK compared with other field positions due to their specific physiological and training characteristics.

  13. Medium-term Mortality of Dutch Professional Soccer Players

    NARCIS (Netherlands)

    Koning, Ruud H.; Amelink, Remko

    Professional athletes such as soccer players are expected to be in better health than the average member of their age cohort, if only because of the very demands imposed on them by their profession. Moreover, during their active career, their health is monitored on a regular basis. However, whenever

  14. Coping under pressure: Strategies for maintaining confidence amongst South African soccer coaches

    Directory of Open Access Journals (Sweden)

    Sheila Nguyen

    2011-02-01

    Full Text Available Sport coaching can be a fulfilling and rewarding occupation, but can also be stressful because of the demands and expectations of various external factors. The complex and extraordinary demands placed on coaches, force them to perform multiple roles (e.g. educator, motivator, counsellor, adviser, trainer, manager and administrator. Soccer coaches face a number of challenges, frustrations, conflicts and tensions, the enormity of which is often underestimated. This notion is supported by the description of coaching as a perilous occupation in which coaches experience pressures like stress, conflict and tension, media pressure and intrusions into family life. This study explored the perceptions of South African soccer coaches in terms of the mechanisms they use to cope with potential stressors experienced in their jobs and employed a non-experimental design, using a quantitative approach, to assess stress and coping strategies of South African coaches. One hundred and twelve soccer coaches, coaching at the provincial level and higher, completed a questionnaire on stress and stress coping mechanisms used in their coaching jobs. Descriptive data analysis was completed using the Statistical Package for Social Sciences (SPSS – version 16. The sources of stress experienced and coping methods used by the coaches were evaluated. Results revealed that the top three sources of stress were a lack of resources, fixture backlog and games where the outcome is critical, whilst the lowest three sources of stress were political interference, physical assaults from players and substituting a player. Moreover, various coping strategies used by the coaches showed that an average of 5.68%, 5.14% and 89.78% of the sample used maladaptive coping, emotion management coping and problem management coping strategies respectively. Academic and practical implications of the study results are discussed.

    Opsomming

    Sport afrigting kan

  15. Injuries of the obturator muscles in professional soccer players.

    Science.gov (United States)

    Wong-On, Manuel; Turmo-Garuz, Antonio; Arriaza, Rafael; Gonzalez de Suso, Jose Manuel; Til-Perez, Luis; Yanguas-Leite, Xavier; Diaz-Cueli, David; Gasol-Santa, Xavier

    2017-02-10

    Obturator externus and internus muscular tears are uncommon injuries. Only a few case reports exist, mainly in high-level athletes. Our aim is to describe a series of obturator externus and internus muscular tears in professional soccer players. Injury data from four teams from the First Division of the Spanish Soccer League were collected over a total of four seasons. Any soccer player who sustained an injury to either the obturator externus or internus identified on magnetic resonance (MRI) was included. All injured players were treated non-operatively with a goal of returning to play as fast as possible. Sixteen players sustained injuries to the obturator externus and internus during matches or training sessions. The main complaint was anterior hip pain with a physical examination showing pain during internal rotation or external rotation of the flexed hip. The MRI documented 12 muscular tears of the obturator externus, and 4 muscular tears of the obturator internus. All injuries were treated conservatively based on physical therapy, analgesic medications, and underwent a symptoms-based rehabilitation protocol. Mean return to play was 11.5  ±  8.8 days. Although uncommon, tears of the obturator externus and internus occur in professional soccer players. The MRI scan was essential to the location, classification, and evaluation of the injury size. The clinical relevance of our investigation is based on the relatively benign prognosis of these injuries. IV.

  16. PROFESSIONAL DEVELOPMENT OF COACHES AND TEACHERS: TRENDS AND CHALLENGES

    Directory of Open Access Journals (Sweden)

    Mustafa Levent Ince

    2013-07-01

    Full Text Available Coaches and teachers are two key figures in the management and facilitation of the transformational process (i.e. training-education in sport. Therefore, providing high quality professional development opportunities for them can directly impact on the transformational process in sport. Professional development content for coaches and teachers is influenced by current and future needs of the athletes. Traditionally, aim of athletic success has the strongest effect on sport practices. Focus of this aim is mainly on talented children and youth. Therefore, it requires a very selective process and it is not inclusive. Recently, increased awareness of health promotion and the strong link between health and regular sport participation have also deeply impacted on sport practices. This point of view emphasizes on “sports for all” and “lifelong sport participation”, and it is inclusive. Aim of athletic success and aim of health promotion require different coaching and teaching approaches. However, developing a sense of autonomy in athletes is important in both settings. Above mentioned issues influence the “training design” and “instructional design” approaches for coaches and teachers in different contexts. Current presentation will include a discussion on both trends and challenges in the professional development of coaches and teachers in making them better facilitators of teaching and learning.

  17. Extensive monitoring through multiple blood samples in professional soccer players

    DEFF Research Database (Denmark)

    Heisterberg, Mette F; Fahrenkrug, Jan; Krustrup, Peter

    2013-01-01

    ABSTRACT: The aim of this study was to make a comprehensive gathering of consecutive detailed blood samples from professional soccer players, and to analyze different blood parameters in relation to seasonal changes in training and match exposure.Blood samples were collected five times during a six...... months period and analyzed for 37 variables in 27 professional soccer players from the best Danish league. Additionally, players were tested for body composition, VO2max and physical performance by the Yo-Yo intermittent endurance sub-max test (IE2).Multiple variations in blood parameters occurred during...... the observation period, including a decrease in hemoglobin and an increase in hematocrit as the competitive season progressed. Iron and transferrin was stabile, whereas ferritin showed a decrease at the end of the season. IgA and IgM increased in the period with basal physical training and at the end...

  18. Coaches' perceptions of the management of professional sport ...

    African Journals Online (AJOL)

    Sport has become a part of life in South Africa. It has grown into an attractive mega-industry that employs many people. Among them is the professional sport coach who is an important member of the human resources in a sport organisation. This individual performs multiple roles that ensure that the sport organisation is ...

  19. Why some make it and others do not: Identifying psychological factors that predict career success in professional adult soccer

    NARCIS (Netherlands)

    Van Yperen, Nico W.

    This prospective study was designed to identify psychological factors that predict career success in professional adult soccer. Post hoc, two groups were distinguished: (1) Male soccer players who Successfully progressed into professional adult soccer (n = 18) and (2) Male soccer players who did not

  20. Effects of age on the soccer-specific cognitive-motor performance of elite young soccer players: Comparison between objective measurements and coaches' evaluation.

    Science.gov (United States)

    Hicheur, Halim; Chauvin, Alan; Chassot, Steve; Chenevière, Xavier; Taube, Wolfgang

    2017-01-01

    The cognitive-motor performance (CMP), defined here as the capacity to rapidly use sensory information and transfer it into efficient motor output, represents a major contributor to performance in almost all sports, including soccer. Here, we used a high-technology system (COGNIFOOT) which combines a visual environment simulator fully synchronized with a motion capture system. This system allowed us to measure objective real-time CMP parameters (passing accuracy/speed and response times) in a large turf-artificial grass playfield. Forty-six (46) young elite soccer players (including 2 female players) aged between 11 and 16 years who belonged to the same youth soccer academy were tested. Each player had to pass the ball as fast and as accurately as possible towards visual targets projected onto a large screen located 5.32 meters in front of him (a short pass situation). We observed a linear age-related increase in the CMP: the passing accuracy, speed and reactiveness of players improved by 4 centimeters, 2.3 km/h and 30 milliseconds per year of age, respectively. These data were converted into 5 point-scales and compared to the judgement of expert coaches, who also used a 5 point-scale to evaluate the same CMP parameters but based on their experience with the players during games and training. The objectively-measured age-related CMP changes were also observed in expert coaches' judgments although these were more variable across coaches and age categories. This demonstrates that high-technology systems like COGNIFOOT can be used in complement to traditional approaches of talent identification and to objectively monitor the progress of soccer players throughout a cognitive-motor training cycle.

  1. Effects of age on the soccer-specific cognitive-motor performance of elite young soccer players: Comparison between objective measurements and coaches' evaluation.

    Directory of Open Access Journals (Sweden)

    Halim Hicheur

    Full Text Available The cognitive-motor performance (CMP, defined here as the capacity to rapidly use sensory information and transfer it into efficient motor output, represents a major contributor to performance in almost all sports, including soccer. Here, we used a high-technology system (COGNIFOOT which combines a visual environment simulator fully synchronized with a motion capture system. This system allowed us to measure objective real-time CMP parameters (passing accuracy/speed and response times in a large turf-artificial grass playfield. Forty-six (46 young elite soccer players (including 2 female players aged between 11 and 16 years who belonged to the same youth soccer academy were tested. Each player had to pass the ball as fast and as accurately as possible towards visual targets projected onto a large screen located 5.32 meters in front of him (a short pass situation. We observed a linear age-related increase in the CMP: the passing accuracy, speed and reactiveness of players improved by 4 centimeters, 2.3 km/h and 30 milliseconds per year of age, respectively. These data were converted into 5 point-scales and compared to the judgement of expert coaches, who also used a 5 point-scale to evaluate the same CMP parameters but based on their experience with the players during games and training. The objectively-measured age-related CMP changes were also observed in expert coaches' judgments although these were more variable across coaches and age categories. This demonstrates that high-technology systems like COGNIFOOT can be used in complement to traditional approaches of talent identification and to objectively monitor the progress of soccer players throughout a cognitive-motor training cycle.

  2. O que pensam os treinadores portugueses da 1ª liga sobre a importância da intervenção psicológica no futebol profissional? What portuguese premier league coaches think about the importance of psychological intervention in professional soccer?

    Directory of Open Access Journals (Sweden)

    André Neves Barreiros

    2011-03-01

    Full Text Available O rendimento desportivo resulta da interligação de aspectos físicos, técnicos, tácticos e psicológicos. Contudo, relativamente ao treino de Futebol constata-se que a componente psicológica é muito negligenciada. Neste estudo, procura-se conhecer as percepções de treinadores de alto rendimento acerca de diferentes aspectos relacionados com a dimensão psicológica, nomeadamente as concepções sobre o treino psicológico e a sua relação com o treino e o rendimento desportivo; o nível de preparação dos treinadores para treinar as competências psicológicas; e a relevância de colaborar com um especialista em psicologia do desporto. Com recurso a uma entrevista semi-estruturada, foram entrevistados quinze treinadores da Primeira Liga de Futebol Portuguesa. Uma análise indutiva das entrevistas revelou que os treinadores atribuem grande importância à componente psicológica e à colaboração com um especialista em psicologia do desporto, até porque não se sentem preparados para desenvolver um treino sistemático neste domínio.Sport performance results from the interaction of physical, technical, tactical and psychological aspects. However, in Soccer training less attention is devoted to the psychological domain. The purpose of this study was to investigate elite Soccer coaches' perceptions concerning different aspects of the psychological dimension, namely the conceptions about mental training and his relationship with training, in general, and performance; the coaches' level of preparation to apply a specific psychological training; and the collaboration with a sport psychology expert. Using in-depth interviews, fifteen coaches of the Portuguese first league were interviewed. The interviews showed that the coaches attribute great significance to the psychological domain and to a possible collaboration with a sport psychology expert, as coaches seem to be unprepared to apply specific mental strategies or are unfamiliar with

  3. Professional Nurse Coaching: Advances in National and Global Healthcare transformation

    Science.gov (United States)

    Hess, Darlene

    2013-01-01

    Nurse coaches are responding to the mandate of Florence Nightingale (1820-1910)—the foundational philosopher of modern nursing—to advocate, identify, and focus on factors that promote health, healthy people, and healthy communities that are recognized today as environmental and social determinants of health.1,2 The Institute of Medicine report3 and other health initiatives suggest the need for increased education and leadership from nurses to address the healthcare needs of our nation and world. Nurse coaches are strategically pos-i tioned and equipped to implement health-promoting and evidence-based strategies with clients and support behavioral and lifestyle changes to enhance growth, overall health, and well-being. With possibilities not yet imagined, employment opportunities for nurses who incorporate coaching into professional practice are developing across the entire spectrum of health, well-ness, and healing. PMID:24416681

  4. Vitamin D and exercise performance in professional soccer players.

    Directory of Open Access Journals (Sweden)

    Nikolaos E Koundourakis

    Full Text Available The current study had two aims. The primary purpose was to examine the association between serum vitamin D levels and the ergometric evaluation of muscle strength, aerobic capacity, and speed in professional soccer players. The secondary aim was to evaluate the effects of the soccer off-season period on serum vitamin D levels.Sixty-seven Caucasian male soccer players (age 25.6 ± 6.2 and height 1.81 ± 0.08 m, members of two Greek Superleague Soccer teams and one Football-league championship team participated in this study. Exercise performance testing for the determination of squat jump (SJ, countermovement jump (CMJ, 10 (10 m and 20 meters (20 m sprint performance, maximal oxygen consumption (VO2max, anthropometry, and blood sampling were performed before (pre and after (post the six-week off-season period.Analysis of our results showed the following: (a a significant correlations between serum vitamin D levels and performance parameters in both pre (SJ; P < 0.001, CMJ; P < 0.001, VO2max; P < 0.001, 10 m; P < 0.001, and 20 m; P < 0.001 and post (SJ; P < 0.001, CMJ; P<0.001, VO2max; P = 0.006, 10 m; P < 0.001, and 20 m; P < 0.001 experimental sessions. (b Vitamin D concentration increased significantly (P < 0.001 following the six-week off-season period compared to baseline, while at the same time all measured performance parameters decreased (SJ; P < 0.001, CMJ; P < 0.001, 10 m; P < 0.001, 20 m; P < 0.001, VO2max; P<0.001.Our findings suggest that vitamin D levels are associated with the ergometric evaluation of muscle strength, as expressed by SJ and CMJ, sprinting capacity, and VO2max in professional soccer players, irrespective the levels of performance. Furthermore, our data reaffirm the importance of UVB on serum vitamin D levels. Moreover, reductions in exercise training stress may also have beneficial effects on vitamin D levels, suggesting a possible association of its levels and the training-induced stress. Our results indicate a

  5. Pre-season dietary intake of professional soccer players.

    Science.gov (United States)

    Raizel, Raquel; Godois, Allan da Mata; Coqueiro, Audrey Yule; Voltarelli, Fabrício Azevedo; Fett, Carlos Alexandre; Tirapegui, Julio; Ravagnani, Fabricio Cesar de Paula; Coelho-Ravagnani, Christianne de Faria

    2017-01-01

    Despite the well-documented importance of nutrition in optimizing performance and health, the dietary intake of soccer players has attracted little attention. We aimed to assess the pre-season dietary intake of professional soccer players and its adequacy in macro and micronutrients. The pre-season dietary intake of 19 male athletes was assessed using a semi-structured 3-day food record. To determine dietary adequacy and excess, energy and macronutrient intake were compared with the Brazilian dietary reference values for athletes, and micronutrients were compared with the Estimated Average Requirement - EAR (minimum recommendation) and Tolerable Upper Intake Level - UL (maximum recommendation). Mean daily energy intake (40.74±12.81 kcal/kg) was adequate. However, there was a low carbohydrate intake (5.44±1.86 g/kg/day) and a high amount of protein and fat (1.91±0.75 and 1.27±0.50 g/kg/day, respectively). Sodium intake (3141.77±939.76 mg/day) was higher than UL (2300 mg/day), while the majority of players showed daily intake of vitamin A (74%), vitamin D (100%), folate (58%), calcium and magnesium (68%) below the EAR (625, 10 and 320 µg/day, 800 and 330 mg/day, respectively). The dietary intake of professional soccer players was adequate in energy, but inadequate in macro and micronutrients, which suggests the need to improve nutritional practices to sustain the physical demands of soccer during pre-season.

  6. Mental skills training in soccer

    DEFF Research Database (Denmark)

    Diment, Gregory Michael

    2014-01-01

    of the program, (b) education and designing soccer drills, and (c) delivery of the drills on the soccer pitch. The program was well received by clubs, coaches, and players. With regards to project aims, the intervention was generally considered a success. Coaches reported that the drill-based nature...... of the program was practical and relevant to young players’ development of psychological skills and many players and coaches have continued working with this approach. However, success varied across the nine clubs and was influenced by factors such as the clubs’ willingness and capacity to adopt new concepts...... by creating a series of drillbased sessions to train psychological skills, and educate coaches about how to implement and integrate PST as a natural part of daily training. The program was delivered to the youth academies in nine Danish professional soccer clubs and consisted of three phases: (a) planning...

  7. Promoting Success: A Professional Development Coaching Program for Interns in Medicine.

    Science.gov (United States)

    Palamara, Kerri; Kauffman, Carol; Stone, Valerie E; Bazari, Hasan; Donelan, Karen

    2015-12-01

    Residency is an intense period. Challenges, including burnout, arise as new physicians develop their professional identities. Residency programs provide remediation, but emotional support for interns is often limited. Professional development coaching of interns, regardless of their performance, has not been reported. Design, implement, and evaluate a program to support intern professional development through positive psychology coaching. We implemented a professional development coaching program in a large residency program. The program included curriculum development, coach-intern interactions, and evaluative metrics. A total of 72 internal medicine interns and 26 internal medicine faculty participated in the first year. Interns and coaches were expected to meet quarterly; expected time commitments per year were 9 hours (per individual coached) for coaches, 5 1/2 hours for each individual coachee, and 70 hours for the director of the coaching program. Coaches and interns were asked to complete 2 surveys in the first year and to participate in qualitative interviews. Eighty-two percent of interns met with their coaches 3 or more times. Coaches and their interns assessed the program in multiple dimensions (participation, program and professional activities, burnout, coping, and coach-intern communication). Most of the interns (94%) rated the coaching program as good or excellent, and 96% would recommend this program to other residency programs. The experience of burnout was lower in this cohort compared with a prior cohort. There is early evidence that a coaching program of interactions with faculty trained in positive psychology may advance intern development and partially address burnout.

  8. Differences in injury risk and characteristics between Dutch amateur and professional soccer players

    NARCIS (Netherlands)

    Anne-Marie van Beijsterveldt, A. M C; Stubbe, J. H.; Schmikli, S. L.; Van De Port, I. G L; Backx, F. J G|info:eu-repo/dai/nl/069615039

    2015-01-01

    Objectives To compare the incidence and characteristics of injuries between Dutch amateur and professional male soccer players during one entire competition season. Design A prospective two-cohort design. Methods During the 2009–2010 season, 456 Dutch male amateur soccer players and 217 professional

  9. Extensive monitoring through multiple blood samples in professional soccer players.

    Science.gov (United States)

    Heisterberg, Mette F; Fahrenkrug, Jan; Krustrup, Peter; Storskov, Anders; Kjær, Michael; Andersen, Jesper L

    2013-05-01

    The aim of this study was to make a comprehensive gathering of consecutive detailed blood samples from professional soccer players and to analyze different blood parameters in relation to seasonal changes in training and match exposure. Blood samples were collected 5 times during a 6-month period and analyzed for 37 variables in 27 professional soccer players from the best Danish league. Additionally, the players were tested for body composition, V[Combining Dot Above]O2max and physical performance by the Yo-Yo intermittent endurance submax test (IE2). Multiple variations in blood parameters occurred during the observation period, including a decrease in hemoglobin and an increase in hematocrit as the competitive season progressed. Iron and transferrin were stable, whereas ferritin showed a decrease at the end of the season. The immunoglobulin A (IgA) and IgM increased in the period with basal physical training and at the end of the season. Leucocytes decreased with increased physical training. Lymphocytes decreased at the end of the season. The V[Combining Dot Above]O2max decreased toward the end of the season, whereas no significant changes were observed in the IE2 test. The regular blood samples from elite soccer players reveal significant changes that may be related to changes in training pattern, match exposure, or length of the match season. Especially the end of the preparation season and at the end of the competitive season seem to be time points were the blood-derived values indicate that the players are under excessive physical strain and might be more subjected to a possible overreaching-overtraining conditions. We suggest that regular analyses of blood samples could be an important initiative to optimize training adaptation, training load, and game participation, but sampling has to be regular, and a database has to be built for each individual player.

  10. Energy and macronutrient intakes of professional football (soccer) players.

    Science.gov (United States)

    Maughan, R J

    1997-01-01

    OBJECTIVE: To examine the dietary habits of professional soccer players at two Scottish Premier League clubs during the competitive season. METHODS: A study of the dietary intake of 51 professional soccer players with two different clubs was carried out by the seven day weighed intake method. RESULTS: Physical characteristics of the two groups of players were similar, with only small differences in age and body mass but no difference in height and body fat. Mean (SD) daily energy intake for club A was 11.0 (2.6) MJ, and for club B 12.8 (2.2) MJ. The higher energy intake at club B was largely accounted for by a higher (P carbohydrate, or alcohol consumed. When expressed as a fraction of total energy intake, mean protein intake was higher (P players was not high compared with athletes in endurance sports. Fractional contribution of the macronutrients to total energy intake was broadly similar to that of the general population. PMID:9132211

  11. Portuguese Coaches' Perceptions of and Preferences for Knowledge Sources Related to their Professional Background.

    Science.gov (United States)

    Mesquita, Isabel; Isidro, Sofia; Rosado, António

    2010-01-01

    The purpose of this study was to analyse Portuguese coaches' perceptions of, and preferences for, knowledge sources as related to professional background; namely academic education level, coach education level and coaching experience. The study's participants comprised 336 Portuguese coaches from twenty-two sports. A questionnaire was used to identify coaches' demographic characteristics and representations about their preferred sources of coaching knowledge. MANOVA using Tukey's HSD test was used to compare groups. The results highlighted that coaches perceived that coaching knowledge is built from a broad range of sources from personal coaching and playing experiences to more explicit formal, informal and non-formal learning situations. Results indicated that the coaches ascribed more importance to experiential sources such as working with experts, learning by doing, interacting with peer coaches and attending informal seminars and clinics, than to the formal learning situations provided by the national coaching certification programs. Differences, however, were found in that coaches who had a greater background within higher education (physical) and sport valued informal and non-formal learning sources more than did coaches who were defined as not coming from an academic background. The findings point to the importance of developing new learning, experientially-based, opportunities within the Portuguese context, where curricula content continues to be delivered via didactic means. Key pointsCoaches recognized that learning is obtained from a broad range of sources of coaching knowledge and each source has a particular role in the development of a coach.Experiential guided sources reached more importance to coaches as working with experts, learning by doing, attending seminars/clinics outside of the formal system and interaction with peers were the most acknowledged.The only source that is related to formal learning, national certification programs, was

  12. Integrating Professional Development Content and Formative Assessment with the Coaching Process: The Texas School Ready Model

    Science.gov (United States)

    Crawford, April; Zucker, Tricia; Van Horne, Bethanie; Landry, Susan

    2017-01-01

    Instructional coaching is becoming common in early childhood programs to provide individualized, job-embedded professional development. Yet relatively few studies have tried to "unpack" the coaching process and delineate the specific features of coaching that contribute to teacher change. In this article, we describe an evidence-based…

  13. Effects of a periodized small-sided game training intervention on physical performance in elite professional soccer.

    Science.gov (United States)

    Owen, Adam L; Wong, Del P; Paul, Darren; Dellal, Alexandre

    2012-10-01

    The present study examined the effects of periodized small-sided game (SSG) training intervention during a 4-week in-season break on the physical performance changes (i.e., speed, aerobic performance, and repeated sprint ability) within elite European soccer players. Fifteen, elite, male, professional players (age: 24.5 ± 3.45 years; height: 181.1 ± 5.78 cm; body mass: 78.7 ± 7.67 kg; VO2max: 54.88 ± 5.25 ml·kg(-1)·min(-1)) from a Scottish Premier League team participated in 7 separate SSG sessions (3 vs. 3 plus goalkeepers) of which games lasted for a 3-minute duration for the selected number of games (ranged from 5 to 11) increasing over the intervention period. To examine the effects of the SSG intervention on physical performance changes, pre- and posttesting sessions took place over a 2-day period (day 1: anthropometry and repeated sprint ability [RSA] assessments; day 2: running economy [RE] and blood lactate assessments). Results show that the 4-week SSG training intervention induced significant improvement in RSA as indicated by faster 10-m sprint time (p soccer players' physical fitness characteristics. Being able to develop physical characteristics in conjunction to technical and tactical elements of the game, within a relatively short period, makes SSGs an appealing proposition for fitness coaches, players, and technical coaches alike.

  14. The Practices and Developmental Pathways of Professional and Olympic Serial Winning Coaches

    OpenAIRE

    Lara-Bercial, S; Mallett, CJ

    2016-01-01

    In 2011, the Innovation Group of Leading Agencies of the International Council for Coaching Excellence initiated a project aimed at supporting the identification and development of the next generation of high performance coaches. The project, entitled Serial Winning Coaches, studied the personalities, practices and developmental pathways of professional and Olympic coaches who had repeatedly achieved success at the highest level of sport. This paper is the third publication originating from t...

  15. Functional Assessment and Injury Risk in a Professional Soccer Team

    Directory of Open Access Journals (Sweden)

    Pedro Gómez-Piqueras

    2017-01-01

    Full Text Available At the last World Conference on Sport and Physical Therapy celebrated in Bern (Switzerland, 2015, it was confirmed that the functional skills of an athlete are a very important variable to be considered in the recovery of an injury. On the other hand, its use as a predictive risk tool still lacks solid evidence. The purpose of this study was to determine whether a battery of functional tests (FPT could be used as a preliminary measure for the season in order to identify the injury risk in a professional soccer team in the Spanish Second Division B League. Fifty-two soccer players (ages of 25.3 ± 4.6 years, 10.33% ± 0.9% fat were functionally assessed during two seasons (2012–2013 and 2013–2014 and analyzed from an injury perspective. A total of 125 injuries were recorded. The sample was grouped based on the number of injuries and the required absence days. Except for the bipodal vertical jump (CMJ, none of the functional tests revealed differences among the groups. The correlation study between the functional condition and the suffered injuries did not show any significant results.

  16. Differences in injury risk and characteristics between Dutch amateur and professional soccer players

    NARCIS (Netherlands)

    Beijsterveldt, A.M.C. van; Stubbe, J.H.; Schmikli, S.L.; Port, I.G.L. van de; Backx, F.J.G.

    2015-01-01

    Objectives: To compare the incidence and characteristics of injuries between Dutch amateur and professional male soccer players during one entire competition season. Design: A prospective two-cohort design. Methods: During the 2009-2010 season, 456 Dutch male amateur soccer players and 217

  17. PORTUGUESE COACHES' PERCEPTIONS OF AND PREFERENCES FOR KNOWLEDGE SOURCES RELATED TO THEIR PROFESSIONAL BACKGROUND

    Directory of Open Access Journals (Sweden)

    Isabel Mesquita

    2010-09-01

    Full Text Available The purpose of this study was to analyse Portuguese coaches' perceptions of, and preferences for, knowledge sources as related to professional background; namely academic education level, coach education level and coaching experience. The study's participants comprised 336 Portuguese coaches from twenty-two sports. A questionnaire was used to identify coaches' demographic characteristics and representations about their preferred sources of coaching knowledge. MANOVA using Tukey's HSD test was used to compare groups. The results highlighted that coaches perceived that coaching knowledge is built from a broad range of sources from personal coaching and playing experiences to more explicit formal, informal and non-formal learning situations. Results indicated that the coaches ascribed more importance to experiential sources such as working with experts, learning by doing, interacting with peer coaches and attending informal seminars and clinics, than to the formal learning situations provided by the national coaching certification programs. Differences, however, were found in that coaches who had a greater background within higher education (physical and sport valued informal and non-formal learning sources more than did coaches who were defined as not coming from an academic background. The findings point to the importance of developing new learning, experientially-based, opportunities within the Portuguese context, where curricula content continues to be delivered via didactic means

  18. Supporting the Professional Development Needs of High School Athletic Coaches: an Action Research Project to Create a Coaching Resource Guide

    OpenAIRE

    Pelikhova, Julia

    2014-01-01

    Nearly eight million high school students participate in sports in the United States annually. High school athletic coaches have a unique position to impact students athletically and personally. While coaches play a critical role in the lives of student-athletes, there is no mandated professional development or certification required by most states and school districts (Collins, Barber, Moore, & Laws, 2011; Winchester, Culver, & Camiré, 2012a, 2012b). The problem is that there is a major di...

  19. [Imaging study of ankle injury in professional soccer player of males].

    Science.gov (United States)

    Li, Shaolin; Zhao, Wenji; Hao, Shuai; Hu, Shaoyong; Zhang, Rui; Zhang, Xintao

    2015-05-05

    51.0%), 25 ankles were calcanofibular ligaments injury (incidence was 49.0%), 29 ankles was the synovitis and local effusion at posterior ankle (incidence was 56.9%), the partial ligaments injured of deltoid ligaments were usually found and entirely torn were very rare (only three ankles). The former groups and shallow ligaments of deltoid ligaments were prone to injury. The common tendon disease of injury was tenosynovitis, 18 flexor hallucis longus tenosynovitis, 13 posterior tibialis tenosynovitis,7 flexor digitorium tenosynovitis, 5 peroneus longus tenosynovitis, 2 peroneus brevis tenosynovitis and 6 Achilles tendinopathy. Tendinosis and tendon degeneration was relatively rare. The professional soccer players have been easily lead to the anatomic abnormal and pathological changes in the bones, ligaments and tendons due to long-term training and competition. The majority changes were chronic injury. Imaging examination can be found the abnormal changes of ankle and could help athletes, coachs, doctors to understand and assess the ankle structure and functional status.

  20. A Mixed-Methods Study Examining the Role of the Instructional Coach within a Professional Learning Community

    Science.gov (United States)

    Jorgensen, Christie L.

    2016-01-01

    Although instructional coaching and professional learning communities provide ongoing, job-embedded support and professional learning, little is known about what role the instructional coach serves within the setting of the professional learning community or what coaching skills teachers find most helpful within this setting. Research examining…

  1. Analysis of Injury Incidences in Male Professional Adult and Elite Youth Soccer Players: A Systematic Review

    Science.gov (United States)

    Pfirrmann, Daniel; Herbst, Mark; Ingelfinger, Patrick; Simon, Perikles; Tug, Suzan

    2016-01-01

    Context:  The incidence of injury for elite youth and professional adult soccer players is an important concern, but the risk factors for these groups are different. Objective:  To summarize and compare the injury incidences and injury characteristics of male professional adult and elite youth soccer players. Data Sources:  We searched MEDLINE and Web of Science using the search terms elite, international, European, soccer, football, injury, injuries, epidemiology, incidence, prevalence, not female, not American football, and not rugby. We also used the search terms professional for studies on professional adult soccer players and high-level, soccer academy, youth, adolescent, and young for studies on elite youth soccer players. Study Selection:  Eligible studies were published in English, had a prospective cohort design, and had a minimum study period of 6 months. To ensure that injury data were assessed in relationship to the athlete's individual exposure, we included only studies that reported on injuries and documented exposure volume. Data Extraction:  Two independent reviewers applied the selection criteria and assessed the quality of the studies. Data Synthesis:  A total of 676 studies were retrieved from the literature search. Eighteen articles met the inclusion criteria: 6 for elite youth and 12 for professional adult soccer players. Conclusions:  Injury rates were higher for matches than for training for both youth and adult players. Youth players had a higher incidence of training injuries than professionals. Efforts must be made to reduce the overall injury rate in matches. Therefore, preventive interventions, such as adequately enforcing rules and focusing on fair play, must be analyzed and developed to reduce match-related injury incidences. Reducing training injuries should be a particular focus for youth soccer players. PMID:27244125

  2. Integration of professional judgement and decision-making in high-level adventure sports coaching practice.

    Science.gov (United States)

    Collins, Loel; Collins, Dave

    2015-01-01

    This study examined the integration of professional judgement and decision-making processes in adventure sports coaching. The study utilised a thematic analysis approach to investigate the decision-making practices of a sample of high-level adventure sports coaches over a series of sessions. Results revealed that, in order to make judgements and decisions in practice, expert coaches employ a range of practical and pedagogic management strategies to create and opportunistically use time for decision-making. These approaches include span of control and time management strategies to facilitate the decision-making process regarding risk management, venue selection, aims, objectives, session content, and differentiation of the coaching process. The implication for coaches, coach education, and accreditation is the recognition and training of the approaches that "create time" for the judgements in practice, namely "creating space to think". The paper concludes by offering a template for a more expertise-focused progression in adventure sports coaching.

  3. Match-play activity profile in professional soccer players during official games and the relationship between external and internal load.

    Science.gov (United States)

    Suarez-Arrones, L; Torreño, N; Requena, B; Sáez De Villarreal, E; Casamichana, D; Barbero-Alvarez, J C; Munguía-Izquierdo, D

    2015-12-01

    The aim was to quantify for the first time the physical and physiological profile of professional soccer players in official games using GPS and heart rate (HR) response. Thirty professional soccer players were investigated during a half in competitive club level matches (N.=348) using GPS devices. The relative total distance was 118.9±10.7 m∙min(-1) and player's Work-To-Rest Ratio was 2.1:1. Defenders covered the lowest total distance, while Second-Strikers (2(nd)S) and Wide-Midfielders (W-MD) traveled the greatest total distance. Defenders presented the lowest Work-To-Rest Ratio values. Playing position also impacted on all sprinting performance results, except in average sprint distance and time of sprint. The number of sprints and repeated-sprint sequences recorded by the W-MD and Strikers (S) were significantly greater than any other group. The average HR recorded was 87.1%HRmax and the relationship between the external and internal load value (Effindex) was 1.4 with significant differences in both between playing positions. W-MD recorded a significantly smaller average HR than any other group and Centre-Backs showed a significantly smaller Effindex value than any other group. Conversely, W-MD showed a significantly greater Effindex value than any other group, except the 2(nd)S. This study has verified a number of statistically significant differences between the different playing positions. Coaches should be focused on the specific physical and physiological requirements of the playing positions to optimize the training prescription in soccer. The relationships between external and internal load measures among position-specific indicates that players with less overall running performance during match-play were the worst in Effindex.

  4. Injury rates in professional soccer players during Ramadan.

    Science.gov (United States)

    Chamari, Karim; Haddad, Monoem; Wong, Del P; Dellal, Alexandre; Chaouachi, Anis

    2012-01-01

    Many of the socio-cultural lifestyle and dietary changes that take place during Ramadan may affect the risk of injury in athletes, but little evidence is available. The aim of the present study was to examine the effects over two consecutive years of the holy month of Ramadan on injury rates in 42 professional players of a Tunisian top-level professional soccer team. Players were retrospectively organized into fasting and non-fasting groups and monitored for 3 months: 4 weeks before Ramadan, during the month of Ramadan (4 weeks), and 4 weeks after Ramadan each year. During Ramadan, training started at 22.00 h. The circumstances (training/match) and mechanism of injury (traumatic/overuse) were recorded. No significant differences between the three periods were observed for weekly mean training load, training strain, training duration, and Hooper's Index (quality of sleep, and quantities of stress, delayed-onset muscle soreness, and fatigue). Compared with non-fasting players, fasters had a lower (P difference in injury rates was observed between fasting and non-fasting players. Nevertheless, the rates of non-contact (6.8 vs. 0.6 and 1.1) and training overuse (5.6 vs. 0.6 and 0.5) injuries were significantly higher in fasting players during the month of Ramadan than before or after Ramadan. In conclusion, Ramadan, along with the corresponding changes in nutritional habits, sleeping schedule, and socio-cultural and religious events, significantly increased overuse and non-contact injuries in fasting players despite the fact that the training load, strain, and duration were maintained.

  5. Ethical Professional Identity and the Development of Moral Exemplar Collegiate Coaches

    Science.gov (United States)

    Hamilton, Maya G. B.; LaVoi, Nicole M.

    2017-01-01

    Coaches have the potential to influence athletes' moral development, especially at the collegiate level--a powerful period of growth in young adults' lives. As central agents in athlete moral education, coaches' moral development and understanding of professionalism is currently unknown. The purpose of this study was to increase understanding of…

  6. Arrangement of Players Position in Soccer Using the Technique of Naive Bayes

    Directory of Open Access Journals (Sweden)

    Gusti Made Trisetya Putra

    2015-12-01

    Full Text Available In the modern soccer era, soccer is already considered as an entertainment, even modern soccer already become as an industry or a business that considered can bring a great profit to the club owner. One of the most important factor in building a team is young age soccer player development. Right young age soccer player development method, can be very helpful in establish a good team. A professional team must have acoach, for the first team or junior team. The duties of a coach is determine a right position for soccer player in the game, this duties sometimes make a coach is hard to making a right decision. This research will discussabout how to design a decision support system for determine soccer player using naive bayes technique. Data mining used naive bayes technique for find a prediction for soccer player based on the player skill test result. From this research result, it can be seen that by using decision support system using data mining with naive bayes technique can be help coach performance in determine position for soccer player especially for young age soccer player development so that can help coach in the making right decision effectively and efficiently.

  7. Coaching

    DEFF Research Database (Denmark)

    Pedersen, Elsebet Frydendal

    kravet om ansvar for egen læring nye krav til lærerne på uddannelsesstederne, til pædagogikken og til læringsprocessen. Rapporten er en sammenskrivning af baggrundsviden om coaching og teorier, der relaterer sig til dette, især læringsprocesser. Derudover indgår nogle konkrete anvisninger til...... gennemførselen af selve coaching forløbet....

  8. The Brazilian Football Association (CBF) model for epidemiological studies on professional soccer player injuries

    Science.gov (United States)

    Arliani, Gustavo Gonçalves; Belangero, Paulo Santoro; Runco, Jose Luiz; Cohen, Moisés

    2011-01-01

    OBJECTIVE: This study aims to establish a national methodological model for epidemiological studies on professional soccer player injuries and to describe the numerous relevant studies previously published on this topic. INTRODUCTION: The risk of injury in professional soccer is high. However, previous studies of injury risk in Brazil and other countries have been characterized by large variations in study design and data collection methods as well as definitions of injury, standardized diagnostic criteria, and recovery times. METHODS: A system developed by the Union of European Football for epidemiological studies on professional soccer players is being used as a starting point to create a methodological model for the Brazilian Football Association. To describe the existing studies on professional soccer player injuries, we developed a search strategy to identify relevant epidemiological studies. We included the Latin American and Caribbean Center on Health Sciences and Medline databases in our study. RESULTS: We considered 60 studies from Medline and 16 studies from the Latin American and Caribbean Center on Health Sciences in the final analysis. Twelve studies were selected for final inclusion in this review: seven from the Latin American and Caribbean Center on Health Sciences and five from Medline. We identified a lack of uniformity in the study design, data collection methods, injury definitions, standardized diagnostic criteria, and the definition of recovery time. Based on the information contained within these articles, we developed a model for epidemiological studies for the Brazilian Football Association. CONCLUSIONS: There is no uniform model for epidemiological studies of professional soccer injuries. Here, we propose a novel model to be applied for epidemiological studies of professional soccer player injuries in Brazil and throughout the world. PMID:22012041

  9. The Brazilian Football Association (CBF model for epidemiological studies on professional soccer player injuries

    Directory of Open Access Journals (Sweden)

    Gustavo Goncalves Arliani

    2011-01-01

    Full Text Available OBJECTIVE: This study aims to establish a national methodological model for epidemiological studies on professional soccer player injuries and to describe the numerous relevant studies previously published on this topic. INTRODUCTION: The risk of injury in professional soccer is high. However, previous studies of injury risk in Brazil and other countries have been characterized by large variations in study design and data collection methods as well as definitions of injury, standardized diagnostic criteria, and recovery times. METHODS: A system developed by the Union of European Football for epidemiological studies on professional soccer players is being used as a starting point to create a methodological model for the Brazilian Football Association. To describe the existing studies on professional soccer player injuries, we developed a search strategy to identify relevant epidemiological studies. We included the Latin American and Caribbean Center on Health Sciences and Medline databases in our study. RESULTS: We considered 60 studies from Medline and 16 studies from the Latin American and Caribbean Center on Health Sciences in the final analysis. Twelve studies were selected for final inclusion in this review: seven from the Latin American and Caribbean Center on Health Sciences and five from Medline. We identified a lack of uniformity in the study design, data collection methods, injury definitions, standardized diagnostic criteria, and the definition of recovery time. Based on the information contained within these articles, we developed a model for epidemiological studies for the Brazilian Football Association. CONCLUSIONS: There is no uniform model for epidemiological studies of professional soccer injuries. Here, we propose a novel model to be applied for epidemiological studies of professional soccer player injuries in Brazil and throughout the world.

  10. Relationship between the 20-m multistage shuttle run test and 2 soccer-specific field tests for the assessment of aerobic fitness in adult semi-professional soccer players.

    Science.gov (United States)

    Nassis, George P; Geladas, Nickos D; Soldatos, Yiannis; Sotiropoulos, Aristomenis; Bekris, Vaggelis; Souglis, Athanasios

    2010-10-01

    The aim of this study was to examine the relationship of 2 different field tests for the assessment of aerobic fitness in soccer players with the multistage 20-m test used for the evaluation of maximum oxygen uptake. Nineteen semi-professional male soccer players (age: 22.8 ± 2.5 mean ± SD) performed, under similar conditions, 3 field tests in a counterbalanced order 7 days apart. These tests were the multistage 20-m shuttle run test (MSRT), the Bangsbo test, and the Hoff test. Heart rate was recorded in all tests with telemetry, and the Borg scale was introduced at the end of exercise. Finally, 3-minute post-test lactate concentration was determined. Performance was 11.2 ± 0.9 levels in the MSRT, 1,658.9 ± 119.9 m in the Bangsbo test, and 1,798.2 ± 125.9 m in the Hoff test. There was a significant correlation between the Hoff test and performance in the MSRT (r = 0.49, p 0.05). The maximum heart rate achieved in the Bangsbo test was significantly lower compared with that in the MSRT and Hoff test (Bangsbo: 186.6 ± 9.6, Hoff: 192 ± 7.6, MSRT: 190.4 ± 9.3 beats/min, p < 0.05). No difference was found in post-test lactate concentration among the 3 tests. In conclusion, the Hoff test can be used for the assessment of endurance in adult semi-professional soccer players. Coaches and teams could benefit from using the Hoff test that resembles soccer actions for the assessment of players' aerobic fitness.

  11. Relationship between Repeated Sprint Ability and Aerobic Capacity in Professional Soccer Players

    OpenAIRE

    Jones, Rhys M.; Cook, Christian C.; Kilduff, Liam P.; Zoran Milanović; Nic James; Goran Sporiš; Bruno Fiorentini; Fredi Fiorentini; Anthony Turner; Goran Vučković

    2013-01-01

    Aim. The aim of the present study was to investigate the relationship between maximal aerobic capacity (VO2?max) and repeated sprint ability (RSA) in a group of professional soccer players. Methods. Forty-one professional soccer players (age 23 ? 4?yrs, height 180.0 ? 5.3?cm, weight 79.6 ? 5.3?kg) were required to perform tests to assess RSA and VO2?max on two separate days with at least 48?hr rest between testing sessions. Each player performed a treadmill test to determine their VO2?max and...

  12. Effects of Blended Learning Environment on Professional Competence and Motivation Levels of Coach Candidates

    Directory of Open Access Journals (Sweden)

    Turker Turan Yildiz

    2016-01-01

    Full Text Available Impeding factors which restrain educational activities such as physical impracticability exist in coach training courses, which are mainly caused by organizations, ineffective and insufficient duration of courses to resolve these problems, it is possible to use blended learning methods in coach training courses. Thus, we developed a traditional face-to-face environment for a special education course and an online environment for a fundamental education course using blending approach. The study aimed to investigate the effects of blended learning model proposed for coaching education courses on the motivation levels and professional competence of coach candidates. Participants were the trainees who wanted to participate in the first stage of the coach training course at volleyball branch. The coach candidates in the blended learning environment showed significantly higher motivation levels compared to the others in the control group. In addition, a significant difference between the control and the experiment groups of coach candidates in regard to their professional competence was detected. This study is compelling in terms of strengthening the significance of the blended learning environment, even in coach training.

  13. Evaluating injury risk in first and second league professional Portuguese soccer: muscular strength and asymmetry

    Directory of Open Access Journals (Sweden)

    Carvalho Alberto

    2016-06-01

    Full Text Available Strength imbalances between the hamstrings and quadriceps are an essential predictor for hamstring strain in soccer. The study aimed to investigate and compare the muscle strength imbalances of professional soccer players of different performance levels. One hundred and fifty nine senior male professional soccer players from first (n = 75 and second league (n = 84 Portuguese clubs participated in this study. Muscle strength was evaluated with a REV9000 isokinetic dynamometer. Maximal peak torque data were used to calculate quadriceps and hamstrings strength during concentric and eccentric actions, bilateral asymmetry, conventional strength ratios and dynamic control ratios. Second league athletes produced slightly lower conventional strength ratios in the right and left legs (ES = 0.22, p = 0.17 and ES = 0.36, p = 0.023, respectively compared to the first league athletes. No significant differences were found in dynamic control ratios or in bilateral asymmetry among first and second league athletes. These findings do not show a clear link between the competitive level and injury risk in soccer players. However, some of the differences found, particularly in conventional strength ratios, highlight the importance of performing off-season and pre-season strength assessments to prescribe and adjust individual strength training programs among professional soccer players.

  14. Altered Neurochemistry in Former Professional Soccer Players without a History of Concussion.

    Science.gov (United States)

    Koerte, Inga K; Lin, Alexander P; Muehlmann, Marc; Merugumala, Sai; Liao, Huijun; Starr, Tyler; Kaufmann, David; Mayinger, Michael; Steffinger, Denise; Fisch, Barbara; Karch, Susanne; Heinen, Florian; Ertl-Wagner, Birgit; Reiser, Maximilian; Stern, Robert A; Zafonte, Ross; Shenton, Martha E

    2015-09-01

    Soccer is played by more than 250 million people worldwide. Repeatedly heading the ball may place soccer players at high risk for repetitive subconcussive head impacts (RSHI). This study evaluates the long-term effects of RSHI on neurochemistry in athletes without a history of clinically diagnosed concussion, but with a high exposure to RSHI. Eleven former professional soccer players (mean age 52.0±6.8 years) and a comparison cohort of 14 age- and gender-matched, former non-contact sport athletes (mean age 46.9±7.9 years) underwent 3T magnetic resonance spectroscopy (MRS) and neurocognitive evaluation. In the soccer players a significant increase was observed in both choline (Cho), a membrane marker, and myo-inositol (ml), a marker of glial activation, compared with control athletes. Additionally, ml and glutathione (GSH) were significantly correlated with lifetime estimate of RSHI within the soccer group. There was no significant difference in neurocognitive tests between groups. Results of this study suggest an association between RSHI in soccer players and MRS markers of neuroinflammation, suggesting that even subconcussive head impacts affect the neurochemistry of the brain and may precede neurocognitive changes. Future studies will need to determine the role of neuroinflammation in RSHI and the effect on neurocognitive function.

  15. Relationship between Repeated Sprint Ability and Aerobic Capacity in Professional Soccer Players

    Directory of Open Access Journals (Sweden)

    Rhys M. Jones

    2013-01-01

    Full Text Available Aim. The aim of the present study was to investigate the relationship between maximal aerobic capacity ( and repeated sprint ability (RSA in a group of professional soccer players. Methods. Forty-one professional soccer players (age  yrs, height  cm, weight  kg were required to perform tests to assess RSA and on two separate days with at least 48 hr rest between testing sessions. Each player performed a treadmill test to determine their and a test for RSA involving the players completing  m sprints (turn after 20 m with 20 s active recovery between each sprint. Results. There was a significant negative correlation between body mass normalised and mean sprint time ( (; and total sprint time ( (, . Conclusion. Results of the current study indicate that is one important factor aiding soccer players in the recovery from repeated sprint type activities.

  16. Injuries in Professional Male Soccer Players in the Netherlands: A Prospective Cohort Study

    Science.gov (United States)

    Stubbe, Janine H.; van Beijsterveldt, Anne-Marie M. C.; van der Knaap, Sissi; Stege, Jasper; Verhagen, Evert A.; van Mechelen, Willem; Backx, Frank J. G.

    2015-01-01

    Context: Injuries are a major adverse event in a soccer player's career. Reducing injury incidence requires a thorough knowledge of the epidemiology of soccer injuries. Objective: To investigate the incidence and characteristics of injuries in the Dutch premier soccer league. Design: Cohort study. Setting: The Dutch premier soccer league. Patients or Other Participants: During the 2009–2010 soccer season, a total of 217 professional soccer players from 8 teams were prospectively followed. Main Outcome Measure(s): The medical staff recorded time-loss injuries, including information on injuries (ie, type, body part, duration) and exposure data for training sessions and matches. Results: A total of 286 injuries were recorded, affecting 62.7% of the players. The overall injury incidence was 6.2 injuries per 1000 player-hours, 2.8 in training sessions and 32.8 in matches. Most of the recorded injuries were acute (68.5%). Eight percent of the injuries were classified as recurrent. Injuries were most likely to be located in the lower extremities (82.9%). Injury time loss ranged from 1 to 752 days, with a median of 8 days. Knee injuries had the greatest consequences in terms of days of absence from soccer play (on average, 45 days). The most common diagnosis was muscle/tendon injury of the lower extremities (32.9%). Conclusions: Injury risk in the Dutch premier soccer league is high, especially during matches. Preventive measures should focus on the most common diagnoses, namely, muscle/tendon injuries of the lower extremities. PMID:25531144

  17. Group cohesion and coach leadership based on the competitive level of teams in the context of Paraná’s indoor soccer

    Directory of Open Access Journals (Sweden)

    José Roberto Andrade do Nascimento Junior

    2013-01-01

    Full Text Available DOI: http://dx.doi.org/10.5007/1980-0037.2013v15n1p89 The objective of the present study was to analyze the level of group cohesion and coach leadership style of five-a-side soccer teams from the state of Paraná. Participants consisted of 122 athletes of four teams competing at the National League and four teams competing at the Paraná State Championship in 2011, as well as eight coaches. The following instruments were used: the Group Environment Questionnaire, the Leadership Scale for Sports, and a semi-structured interview. Data analysis was performed using the Kolmogorov-Smirnov test, Cronbach’s alpha, Mann-Whitney “U” test (p < 0.05, and categorical analysis. The results demonstrated that the State Championship teams showed higher levels of group cohesion when compared to the National League teams; the coaches of the State Championship teams provided more instructions, reinforcement, and social support to athletes, in addition to showing a more democratic style when compared to the National League coaches – these characteristics were also found in the qualitative analysis. We concluded that the performance level (state/national of the five-a-side soccer teams had an influence on the cohesion level and coaches’ leadership style.

  18. Return to play after lateral meniscectomy compared with medial meniscectomy in elite professional soccer players.

    Science.gov (United States)

    Nawabi, Danyal H; Cro, Suzie; Hamid, Imran P; Williams, Andy

    2014-09-01

    Meniscectomy is frequently performed in elite soccer athletes to allow return to a high level of performance as early as possible. Although lateral meniscectomy is known to have more serious long-term sequelae than medial meniscectomy, little is known about the effect of lateral meniscectomy on the time to return to play during the early recovery phase in professional soccer players. Lateral meniscectomy results in longer times to return to preinjury level of competition and a higher incidence of adverse outcomes compared with medial meniscectomy in elite professional soccer players. Cohort study; Level of evidence, 3. A single-surgeon database containing the injury history and operative details of elite soccer athletes from 2005 to 2009 was used to identify players who had undergone an isolated partial lateral or medial meniscectomy. The time to return to preinjury level of competition, the incidence of adverse events during early recovery, and the need for further arthroscopy were recorded. Time to return to play was analyzed by using the Kaplan-Meier method. A multivariate analysis was used to control for age, location of meniscectomy, percentage of meniscus excised, and type of tear. Ninety soccer players were identified, of which 42 had a lateral meniscectomy and 48 had a medial meniscectomy. The median time to return to play, to the nearest week, was longer in the lateral group than the medial group (7 vs 5; P soccer athletes. Lateral meniscectomy has a higher incidence of adverse events in the early recovery period, including pain/swelling and the need for further arthroscopy. It is also associated with a significantly lower rate of return to play. These findings form the basis of an important discussion that must be had with player and club before a lateral meniscectomy is performed in elite soccer athletes. © 2014 The Author(s).

  19. Analysis of the Motor Activities of Professional Polish Soccer Players

    Directory of Open Access Journals (Sweden)

    Andrzejewski Marcin

    2016-12-01

    Full Text Available Introduction. The aims of the present study were to determine the activity profiles of a large sample of Polish Premier League soccer players during elite-standard soccer matches depending on their position on the pitch and the intensity range of physical activity. Material and methods. The study sample comprised 1,178 players in 5 outfield positions: external defenders (ED, n = 289, central defenders (CD, n = 307, central midfield players (CM, n = 327, external midfield players (EM, n = 152, and forwards (F, n = 103. Altogether, 81 Polish League games held during four domestic seasons (2010-2011, 2011-2012, 2012-2013, and 2013-2014 were used in the analysis. A semi-automatic computerised player tracking system (Amisco Pro®, version 1.0.2, Nice, France was applied to create the match activity profiles of the teams. Results. The results of statistical analysis revealed that the average total distance covered by all the players (n = 1,178 was 11,313 ± 852 m. With respect to the players’ position on the pitch, the central midfielders travelled the longest average distance (11,894 ± 765 m during the game. The longest distance was covered in the V1 intensity range (62%, followed by V2 (15%, V3 (10%, V4 (8%, V5 (3%, and V6 (2%. Conclusions. The objective of this study was to verify the differences among playing positions and to quantify the demands placed on elite Polish soccer players in each individual position during match play. While analysing elite-level match play in terms of the overall distance covered in different categories of intensity, we found a number of statistically significant differences between different playing positions. The data presented in this study can be regarded as norms for elite soccer players, serve for present and future comparison, and represent the scientific basis for developing position-specific conditioning/training protocols in soccer.

  20. Relationships Between Training Load Indicators and Training Outcomes in Professional Soccer

    NARCIS (Netherlands)

    Jaspers, Arne; Brink, Michel S.; Probst, Steven G M; Frencken, Wouter G. P.; Helsen, Werner F.

    Background In professional senior soccer, training load monitoring is used to ensure an optimal workload to maximize physical fitness and prevent injury or illness. However, to date, different training load indicators are used without a clear link to training outcomes. Objective The aim of this

  1. Examination of the external and internal load indicators' association with overuse injuries in professional soccer players

    NARCIS (Netherlands)

    Jaspers, Arne; Kuyvenhoven, Jurian P; Staes, Filip; Frencken, Wouter G P; Helsen, Werner F; Brink, Michel S

    2017-01-01

    OBJECTIVES: Research in professional soccer focusing on the relevance of external and internal load indicators for injury prevention is scarce. This study examined the relationship between load indicators and overuse injuries. DESIGN: Prospective cohort study. METHODS: Data were collected from 35

  2. Symptoms of Common Mental Disorders and Adverse Health Behaviours in Male Professional Soccer Players

    NARCIS (Netherlands)

    Gouttebarge, Vincent; Aoki, Haruhito; Kerkhoffs, Gino

    2015-01-01

    To present time, scientific knowledge about symptoms of common mental disorders and adverse health behaviours among professional soccer players is lacking. Consequently, the aim of the study was to determine the prevalence of symptoms of common mental disorders (distress, anxiety/depression, sleep

  3. Symptoms of Common Mental Disorders in Professional Football (Soccer) Across Five European Countries

    NARCIS (Netherlands)

    Gouttebarge, Vincent; Backx, Frank J. G.; Aoki, Haruhito; Kerkhoffs, Gino M. M. J.

    2015-01-01

    Evidence on the prevalence of symptoms related to distress, anxiety/depression or substance abuse/dependence, - typically referred to as symptoms of common mental disorders (CMD) - is lacking in European professional football (soccer). The aims of the present study were to investigate the prevalence

  4. Enchancing coaches' professional development through a goal setting program : an action research cross-case study

    OpenAIRE

    Erkina, Elena; Kiens, Kristel

    2013-01-01

    Erkina Elena, Kiens Kristel, 2013. Enhancing Coaches’ Professional Development Through a Goal Setting Program: An Action Research Cross-Case Study. Master’s Thesis in Sport and Exercise Psychology. Department of Sport Sciences, University of Jyväskylä. 115 p. Lack of knowledge and practical training are some of the main barriers for coaches not to use mental training in their everyday practice. Educational programs for coaches should include relevant topics and hands-on experiences to in...

  5. Elite Youth Soccer Players' Physiological Responses, Time-Motion Characteristics, and Game Performance in 4 vs. 4 Small-Sided Games: The Influence of Coach Feedback.

    Science.gov (United States)

    Brandes, Mirko; Elvers, Sebastian

    2017-10-01

    The purpose of this study was to determine the impact of mild vs. strongly pushed coach feedback on the physiological response, ratio of perceived exertion (RPE), and time-motion characteristics in soccer training with small-sided games (SSGs). Sixteen elite youth soccer players (aged 17.2 ± 0.7 years, V[Combining Dot Above]O2max 62.1 ± 3.8 ml·kg·min) played two 4 vs. 4 small-sided games each. In random order, the coach provided a mild, unobtrusive, or a strongly pushed feedback throughout the game. Physiological measurements included heart rate expressed in mean values and intensity zones, blood lactate concentration, and RPE. The distance traveled, number of sprints, and work:rest ratio were captured by global positioning systems at 5 Hz. Game performance, such as volume of play and efficacy index, was estimated using the Team Sports Assessment Procedure. No differences were found for the physiological response and time-motion characteristics, but effect sizes demonstrated an increase in RPE (+0.4, p = 0.27) and a decrease in game performance (e.g., volume of play, -2.5, p = 0.08) under pushed feedback. Although a pushed feedback raises RPE, it negatively affected the players' game performance, without necessarily provoking higher physiological responses. These results should help coaches to understand that modifying the type of feedback provided during SSG does not impact the physiological response if SSG are already played with high intensity but that the feedback affects RPE and game performance. To keep a better game performance, soccer coaches are encouraged to provide smooth feedback during SSG.

  6. Partial isolated rupture of the popliteus tendon in a professional soccer player: a case report

    Directory of Open Access Journals (Sweden)

    Mariani Pier

    2009-07-01

    Full Text Available Abstract The complete isolated rupture of the popliteus tendon has been described as a rare injury and this report describes the case of a 31-year-old soccer player who sustained a partial rupture of the popliteus tendon during a game. The injury was suspected clinically and at MRI but confirmed only by the arthroscopic examination. The treatment consisted in open debridment with no tendon repair or augmentation. Seven weeks post-operation the patient was symptom-free and returned to competitive professional soccer at the same preinjury level. The clinical and arthroscopic findings of the case reported suggest a possible overuse disease with degenerative expression.

  7. Oral Health Status and Impact on Performance of Professional Soccer Players

    Directory of Open Access Journals (Sweden)

    Ariya Chantaramanee

    2016-04-01

    Full Text Available Objectives: To evaluate oral health, the determinants of oral health and the effect of oral health on well-being, training and performance of professional soccer players in Thailand. Methods: Twenty-nine professional soccer players in Phitsanulok FC, Thailand. Oral examination about DMFT, Quigley & Hein plaque index (PI, Löe & Silness gingival index, World Health Organization malocclusion index, pocket depth, TMJ examination and history of dental trauma were recorded. Impact of oral health on athletic performance and training was assessed using OIDP Results: The results demonstrated high levels of poor oral health including dental caries (84%, mean DMFT= 10.08 (D=8.0, M=0.84 and F=1.24, dental attrition (60% and periodontal pocket (36%. Thirty percent of all players presented bruxism and 10 % with severe malocclusion. More than 40% of athletes were ‘bothered’ by their oral health with 28% reporting an impact on quality of life and 18% on training and performance. Conclusion: The oral health of professional soccer players Thai was poor with a resulting substantial negative impact on well-being, training and performance. As oral health is an important element of overall health and well-being, health promotion and disease prevention interventions are urgently required to optimise soccer player performance.DOI: 10.14693/jdi.v23i1.633

  8. Alpha-amylase serum levels in professional soccer players are not related with physical fitness.

    Science.gov (United States)

    Sanchis-Gomar, Fabian; Alis, Rafael; Rampinini, Ermanno; Bosio, Andrea; Romagnoli, Marco; Lombardi, Giovanni; Lippi, Giuseppe

    2017-03-01

    Recent evidence has showed that serum or salivary values of α-amylase predict endurance running performance. In this study we investigate whether serum α-amylase concentration may be associated with training status during a competitive season and after a detraining period in professional soccer players. The study population consisted in 15 male professional soccer players from an Italian major league team (age [mean±SD] 27±5 years, weight 76.9±4.1 kg, height 1.82±0.05 m). Serum α-amylase levels were measured 3 times during the last part of a competitive season (January, March and May) and just before preseason training (July). Metabolic and cardiovascular fitness of soccer players was improved during the last part of the season. The levels of α-amylase did not change significantly throughout the study period (χ2=7.331, P=0.062), nor they were found to be associated with variation of physical fitness and training status. The α-amylase fluctuations throughout a competitive season and after vacation time were meaningless in professional soccer players. No significant associations with physical fitness variations could be observed. These results suggest that α-amylase concentration may be a useful parameter for identifying individual inclination to endurance exercise, but not for predicting actual training status.

  9. The second-to-fourth digit ratio correlates with aggressive behavior in professional soccer players.

    Science.gov (United States)

    Perciavalle, Valentina; Di Corrado, Donatella; Petralia, Maria Cristina; Gurrisi, Lino; Massimino, Simona; Coco, Marinella

    2013-06-01

    The aim of this study was to test the hypothesis that high levels of testosterone during prenatal life, testified by a low second-to-fourth digit ratio (2D:4D), as well as in adulthood affect the aggressive behavior of professional soccer players. Using 18 male professional players from a first level Italian Soccer Team we calculated: i) the 2D:4D ratio of the right hand, ii) the number of yellow and red cards per game, iii) the mean salivary testosterone concentration (Sal/T) and iv) the handling of aggressive impulses as assessed by the Picture Frustration test (PFT). Soccer players with a lower 2D:4D ratio had a higher number of fouls per game. A significant negative correlation was observed between Sal/T and 2D:4D ratio, as well as between 2D:4D ratio and the aggressiveness of players. By contrast, a significant positive correlation of Sal/T and fouls/game score and PFT was detected. No significant correlation was detected between 2D:4D or Sal/T and the playing position of players. Results of this study revealed that in professional soccer players, aggressive behavior, with the consequent increased risk of fouls during the game, is more likely to occur in individuals with high testosterone levels, not only in adulthood, but also during their intrauterine life.

  10. COMPARISON OF TWO METHODS TO MEASURE BODY COMPOSITION IN COSTA RICAN PROFESSIONAL SOCCER PLAYERS

    Directory of Open Access Journals (Sweden)

    Braulio Sánchez-Ureña

    2016-01-01

    Full Text Available Anthropometric and physiological characteristics of professional soccer players per playing position have been studied extensively in order to determine their relevance in competitions. However, comparing methods to assess body composition is uncommon for Costa Rican soccer players. Purpose: compare body composition using Dual Energy X-Ray Absorptiometry (DEXA and the skinfold method in Costa Rican professional soccer players. Methods: 106 Costa Rican professional soccer players, 24.53 ± 4.77 years of age, participated in the study. Results: On average body fat was 13.34 ± 4.1 %, fat free mass 62.1±5.5 kg and bone mineral content 3.6 ± 0.4 g/cm2 using DEXA, while body fat recorded using the skindfold method was 12.58 ± 3.0 %. When comparing body fat using both methods significant differences were recorded (p=0.005. In addition, there were differences on fat free mass by extremity in the upper right component (p=0.001 and lower (p=0.037 extremities. Fat free mass per playing position showed differences in the arms (p<0.05. There was a strong positive correlation (r=0.75, p < 0.001 between body fat obtained using DEXA and the skinfold methods. Conclusion: When comparing fat percentages using both methods significant differences were recorded. Body fat measured with both methods was very similar; consequently, both techniques may be used in this population.

  11. Coaching

    DEFF Research Database (Denmark)

    Amhøj, Christa Breum

    2008-01-01

    Coaching vinder mere og mere indpas i den danske folkeskole og udpeges som løsning på forskellige problemer. Eksempelvis som løsning på hvordan skolelederen kan sætte sig fri fra irrationelle og automatpilotiske reaktionsmønstre og lede sine medarbejdere til at lede sig selv; som løsning på hvordan...... for statiske og kontrollerende læringsstrukturer. Artiklen påstår, at det fælles for disse ledelsesmæssige problemer er, at coaching udpeges som en styringsteknologi, der kan bruges til at styre det mulighedsrum, der skabes, når den traditionelle skole bliver erstattet af mere komplekse tilblivelses- og...... disciplineringsformer og nye krav fra omverden. Der er en mængde forskellige styringsteknologier, der konkurrerer om at skabe og styre de indbyggere, der søger at befolke den tomme plads, der opstår, når den traditionelle skole trækkes tilbage. Artiklen påstår, at coaching er en styringsteknologi, der muliggør ledelse...

  12. Torque-angle-velocity Relationships and Muscle Performance of Professional and Youth Soccer Players.

    Science.gov (United States)

    Mazuquin, B F; Dela Bela, L F; Pelegrinelli, A R M; Dias, J M; Carregaro, R L; Moura, F A; Selfe, J; Richards, J; Brown, L E; Cardoso, J R

    2016-11-01

    Soccer matches consist of a variety of different activities, including repeated sprints. Time to attain velocity (TTAV), load range (LR) and the torque-angle-velocity relationship (TAV 3D ) represent an important measurement of muscle performance, however there are few related studies. The aim of this study was to compare these outcomes between soccer players of different age category. 17 professional (PRO) and 17 under-17 (U17) soccer players were assessed for concentric knee flexion/extension at 60, 120 and 300°/s. For the extensor muscles, differences were found in favor of the U17 group for TTAV and LR outcomes at 120°/s, however, the PRO group maintained higher torques in both movement directions in comparison to the U17 in TAV 3D evaluation. These results suggest that muscle performance of the PRO group is more efficient than the U17 group. © Georg Thieme Verlag KG Stuttgart · New York.

  13. Differences in injury risk and characteristics between Dutch amateur and professional soccer players.

    Science.gov (United States)

    van Beijsterveldt, A M C Anne-Marie; Stubbe, J H; Schmikli, S L; van de Port, I G L; Backx, F J G

    2015-03-01

    To compare the incidence and characteristics of injuries between Dutch amateur and professional male soccer players during one entire competition season. A prospective two-cohort design. During the 2009-2010 season, 456 Dutch male amateur soccer players and 217 professional players were prospectively followed. Information on injuries and individual exposure to all soccer activities were recorded in both cohorts. Injuries were recorded using the time-loss definition. In total, 424 injuries were recorded among 274 of the amateur players (60.1% injured players) and 286 injuries were sustained by 136 (62.7% injured players) of the professional players (p=0.52). Compared to the professionals, the injury incidence during training sessions was higher among amateurs (p=0.01), but the injury incidence among professionals was higher during matches (pamateurs (all pamateurs reported more recurrent injuries (pamateur and professional players in the Netherlands might be explained by the difference in the level at which they play, since factors like the availability of medical support and/or the team size may influence the injury risk and characteristics. Copyright © 2014 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.

  14. The Anthropometric Characteristics of Futsal Players Compared with Professional Soccer Players

    Directory of Open Access Journals (Sweden)

    Burdukiewicz Anna

    2014-08-01

    Full Text Available Purpose. The aim of the study was to compare the morphological characteristics of experienced futsal players with professional soccer players. Methods. The research sample included 22 university futsal players and 22 professional soccer players. Parameters including body height and mass, skinfold thicknesses of the trunk and extremities, lower limb length, trunk width, humerus and femur bone breadths, and the circumferences of the chest, hips, thighs, and calves were used to calculate various somatic indices. Somatotyping was performed using the Heath–carter method. Differences in the characteristics between the futsal and soccer players were analyzed using Student’s t test. Intragroup analysis was also performed on futsal players depending on player position and compared with the arithmetic means and standard deviations of all variables of the entire sample. Results. compared with their soccer-playing peers, the futsal players were shorter, weighed less, had shorter lower limbs, narrower hips, and smaller hip circumference and bone breadth values. In contrast, higher levels of body fat and endomorphy were noted in this group. The proportion of mesomorphs and ectomorphs were similar in both groups. Futsal goalkeepers were differentiated by greater subcutaneous adiposity and body mass. Defenders had the slimmest body shape, with relatively narrower shoulders and hips, smaller bone breadths, and lower levels of adiposity. The body build of wingers was slightly larger. Pivoters were characterized by greater body height and larger values for the characteristics measuring the lateral trunk dimensions. Conclusions. The observed morphological differences between futsal and soccer players were mainly in body height and height-associated characteristics. This indicates that no specialized approach in futsal recruitment is currently used. This points to the need to develop a specialized approach in the player recruitment stage, as the tactical and

  15. Professional judgement and decision-making in adventure sports coaching: the role of interaction.

    Science.gov (United States)

    Collins, Loel; Collins, Dave

    2016-01-01

    This qualitative study presents the view that coaching practice places demands on the coach's adaptability and flexibility. These requirements for being adaptive and flexible are met through a careful process of professional judgement and decision-making based on context-appropriate bodies of knowledge. Adventure sports coaches were selected for study on the basis that adventure sports create a hyper-dynamic environment in which these features can be examined. Thematic analysis revealed that coaches were generally well informed and practised with respect to the technical aspects of their sporting disciplines. Less positively, however, they often relied on ad hoc contextualisation of generalised theories of coaching practice to respond to the hyper-dynamic environments encountered in adventure sports. We propose that coaching practice reflects the demands of the environment, individual learning needs of the students and the task at hand. Together, these factors outwardly resemble a constraints-led approach but, we suggest, actually reflect manipulation of these parameters from a cognitive rather than an ecological perspective. This process is facilitated by a refined judgement and decision-making process, sophisticated epistemology and an explicit interaction of coaching components.

  16. Intrinsic risk factors of noncontact ankle sprains in soccer: a prospective study on 100 professional players.

    Science.gov (United States)

    Fousekis, Konstantinos; Tsepis, Elias; Vagenas, George

    2012-08-01

    Ankle sprain is an extremely common injury in soccer players. Despite extensive research, the intrinsic cause of this injury under noncontact conditions remains unclear. To identify intrinsic risk factors for noncontact ankle sprains in professional soccer players. Cohort study; Level of evidence, 2 One hundred professional soccer players were assessed in the preseason for potential risk factors of noncontact ankle sprains. The assessment included (A) ankle joint asymmetries (right-left) in isokinetic muscle strength, flexibility, proprioception, and stability; (B) somatometric asymmetries; (C) previous injuries; and (D) lateral dominance traits. Noncontact ankle sprains were prospectively recorded and diagnosed for a full competition period (10 months). Seventeen of the players sustained at least 1 noncontact ankle sprain. Logistic regression revealed that players with (A) eccentric isokinetic ankle flexion strength asymmetries (odds ratio [OR] = 8.88; 95% confidence interval [CI], 1.95-40.36, P = .005), (B) increased body mass index (OR = 8.16; 95% CI, 1.42-46.63, P = .018), and (C) increased body weight (OR = 5.72; 95% CI, 1.37-23.95, P = .017 ) each had a significantly higher risk of a noncontact ankle sprain. A trend for younger players (OR = 0.28; 95% CI, 0.061-1.24, P = .092) and for players with ankle laxity asymmetries (OR = 3.38; 95% CI, 0.82-14.00, P = .093) to be at greater risk for ankle sprain was also apparent to the limit of statistical significance (.05 sprains in professional soccer players. Age and asymmetries in ankle laxity are potential factors worth revisiting, as there was an indication for younger players and players with ankle instability to be at higher risk for ankle injury. Proper preseason evaluation may improve prevention strategies for this type of injury in soccer.

  17. Analysis of positional training loads (ratings of perceived exertion) during various-sided games in European professional soccer players

    OpenAIRE

    Owen, Adam L.; Dunlop, Gordon; Rouissi, Mehdi; Haddad, Monoem; Mendes, Bruno; Chamar, Karim

    2016-01-01

    The primary aim of the study was to perform a comparative analysis of the positional training loads during various game formats among European professional soccer players. Twenty-two male professional soccer players participated in the investigation and were divided into their tactical positional roles for analysis. Ratings of perceived exertion were collected daily and corresponded to specific formatted game types (small-sided games; large-sided games; large-sided games within a ...

  18. Allergies and Exercise-Induced Bronchoconstriction in a Youth Academy and Reserve Professional Soccer Team.

    Science.gov (United States)

    Bougault, Valérie; Drouard, François; Legall, Franck; Dupont, Grégory; Wallaert, Benoit

    2017-09-01

    A high prevalence of respiratory allergies and exercise-induced bronchoconstriction (EIB) has been reported among endurance athletes. This study was designed to analyze the frequency of sensitization to respiratory allergens and EIB in young soccer players. Prospective cohort design. Youth academy and reserve professional soccer team during the seasons 2012 to 2013 and 2013 to 2014. Eighty-five soccer players (mean age: 20 ± 4 years) participated. Players underwent skin prick tests (SPTs) during the seasons 2012 to 2013 and 2013 to 2014. Spirometry and a eucapnic voluntary hyperpnea test were performed on soccer players during the first season 2012 to 2013 (n = 51) to detect EIB. Two self-administered questionnaires on respiratory history and allergic symptoms (European Community Respiratory Health Survey and Allergy Questionnaire for Athletes) were also distributed during both seasons (n = 59). The number of positive SPTs, exercise-induced respiratory symptoms, presence of asthma, airway obstruction, and EIB. Forty-nine percent of players were sensitized to at least one respiratory allergen, 33% reported an allergic disease, 1 player presented airway obstruction at rest, and 16% presented EIB. Factors predictive of EIB were self-reported exercise-induced symptoms and sensitization to at least 5 allergens. Questioning players about exercise-induced respiratory symptoms and allergies as well as spirometry at the time of the inclusion medical checkup would improve management of respiratory health of soccer players and would constitute inexpensive preliminary screening to select players requiring indirect bronchial provocation test or SPTs. This study showed that despite low frequencies, EIB and allergies are underdiagnosed and undertreated in young soccer players.

  19. Socially Vulnerable Youth and Volunteering in Sports: Analyzing a Brussels Training Program for Young Soccer Coaches

    Directory of Open Access Journals (Sweden)

    Evi Buelens

    2015-06-01

    Full Text Available A considerable number of young Europeans live or risk ending up in socially vulnerable situations. Different social channels (e.g., education, on the job training, leisure exist through which youths can enhance their chances to improve their social position. There is a growing belief that sports in particular can help personal and social development of socially vulnerable youths. Nevertheless, there is little understanding of the mechanisms through which sports can foster development. In addition to participating in sports, volunteering in sports is also regarded as providing developmental opportunities for socially vulnerable youths. Today, however, there is an underrepresentation of socially vulnerable youths in volunteering and volunteer training programs. A case study in Brussels was set up within a volunteer soccer training program focused on socially vulnerable youths. A qualitative research design was used to analyze developmental experiences of participants (n = 11 and program organizers (n = 3. The study also aimed to gain more insight into the mechanisms underlying the program. Participating youths indicated development in both technical and key competences. It is concluded that a systematic approach of the volunteer training program can play an important role in the development of competences of socially vulnerable youths both as a volunteer and an individual.

  20. Managerial Coaching

    Science.gov (United States)

    Bommelje, Rick

    2015-01-01

    This chapter explores how coaching equips managers and supervisors to be successful in the 21st-century workplace. Coaching has benefited these professionals by providing them with viable tools to enhance the leadership and managerial tools they already possess.

  1. Concussion knowledge and management practices among coaches and medical staff in Irish professional rugby teams.

    Science.gov (United States)

    Fraas, M R; Coughlan, G F; Hart, E C; McCarthy, C

    2015-06-01

    Self-reported concussion rates among U-20 and elite rugby union players in Ireland are 45-48%. Half of these injuries go unreported. Accurate knowledge of concussion signs and symptoms and appropriate management practices among coaches and medical staff is important to improve the welfare of players. Examine concussion knowledge among coaches, and management techniques among medical staff of professional Irish rugby teams. Surveys were administered to 11 coaches and 12 medical staff at the end of the 2010-2011 season. Coaches demonstrated an accurate knowledge of concussion with a good understanding of concussion-related symptoms. Medical staff reported using a variety of methods for assessing concussion and making return-to-play decisions. Reliance on subjective clinical methods was evident, with less reliance on objective postural stability performance. Overall, the coaches in this investigation have accurate knowledge of concussion and medical staff use effective techniques for managing this injury. On-going education is needed to assist coaches in identifying concussion signs and symptoms. It is recommended that medical staff increase their reliance on objective methods for assessment and return-to-play decision making.

  2. Return to sport after surgical treatment for pubalgia among professional soccer players.

    Science.gov (United States)

    de Queiroz, Roberto Dantas; de Carvalho, Rogério Teixeira; de Queiroz Szeles, Paulo Roberto; Janovsky, César; Cohen, Moisés

    2014-01-01

    to evaluate the return to sport after surgical treatment for pubalgia among 30 professional soccer players and describe the surgical technique used. this case series was evaluated by means of a questionnaire and physical examination on 30 male professional soccer players of mean age 24.4 years (range: 18-30). The mean duration of the symptoms was 18.6 months (range: 13-28). The diagnosis was made through clinical investigation, special maneuvers and complementary examinations, by the same examiner. All the patients underwent surgical treatment after conservative treatment failed; all procedures were performed by the same surgeon using the same technique. Nonparametric comparisons were made to investigate the time taken to recover after the surgery, for the patients to return to their sport. five patients evolved with hematoma, with the need to remove the stitches three weeks after the operation because of a small dehiscence at the site of the operative wound. The wound healed completely in all these cases by five weeks after the surgery. Four patients presented dysuria in the first week, but improved in the second postoperative week. The mean time taken to return to training was around eight weeks (range: seven-nine). All the players returned to competitive soccer practice within 16 weeks. When asked about their degree of satisfaction after the operation (satisfied or dissatisfied), taking into consideration their return to the sport, there was 100% satisfaction, and they returned to professional practice at the same competitive level as before the injury. This degree of satisfaction continued to the last assessment, which was made after 36 months of postoperative follow-up. the surgical technique presented in this case series, with trapezoidal resection of the pubic symphysis in association with bilateral partial tenotomy of the long adductor, was a fast and effective procedure with a low rate of postoperative complications. It was shown to be an excellent

  3. Early osteoarthritis and reduced quality of life after retirement in former professional soccer players

    Directory of Open Access Journals (Sweden)

    Gustavo Gonçalves Arliani

    2014-09-01

    Full Text Available OBJECTIVES: This study aims to compare the prevalence of osteoarthritis in two groups: one comprising former professional soccer players and the other comprising non-professional-athlete participants. METHODS: Twenty-seven male former professional soccer players and 30 male volunteers from different non-sports professional areas participated in the study. All participants underwent bilateral knee radiography and magnetic resonance imaging. In addition, the quality of life, knee pain and joint function were evaluated and compared using questionnaires given to all participants in both groups. Specific knee evaluations, with regard to osteoarthritis and quality of life, were performed in both groups using the Knee Injury and Osteoarthritis Outcome Score subjective questionnaires and the Short-form 36. The chi-squared test, Fisher's exact test, the Mann-Whitney U test and Student's t-test were used for group comparisons. RESULTS: The between-groups comparison revealed significant differences in the following: pain, symptoms and quality of life related to the knee in the Knee Injury and Osteoarthritis Outcome Score subscales; the physical aspects subscale of the SF-36; total whole-organ magnetic resonance imaging scores with regard to the dominant and non-dominant knees. Former soccer players had worse scores than the controls in all comparisons. CONCLUSIONS: Both the clinical and magnetic resonance evaluations and the group comparisons performed in this study revealed that former soccer players have a worse quality of life than that of a control group with regard to physical aspects related to the knee; these aspects include greater pain, increased symptoms and substantial changes in radiographic and magnetic resonance images of the knee.

  4. Exploring English Teachers' Perceptions about Peer-Coaching as a Professional Development Activity of Knowledge Construction

    Science.gov (United States)

    Castañeda-Londoño, Adriana

    2017-01-01

    Teachers' knowledge and how they construct it is an area that deserves attention when it comes to producing fruitful professional development practices. This small-scale action research aims at identifying the perceptions of three teachers in a private language center about peer-coaching and their actual construction of knowledge in a…

  5. HOW PEER COACHING AFFECTS PROFESSIONAL COMPETENCE OF STUDENT TEACHERS IN TEYL PRACTICUUM

    Directory of Open Access Journals (Sweden)

    Dwi Winarsih

    2017-04-01

    Full Text Available The present study aims to advance English Department students‘ professional competence about Teaching English to Young Learners. The research questions addressed are (1 does peer coaching improve students teachers‘ professional competence and (2 how does peer coaching affect their professional competence. This qualitative research is carried out by studying pre-service teachers' pedagogicalreasoning in a peer coaching program.Each week during a three-month practicum, twenty student teachersreceive training in clarity skills. Dataare collected in the form of videos, weeklyjournals, questionnaires, observation, focus-group interviews. Follow-up interviews are analyzed qualitatively. Peer provides opportunities to discuss, analyze, and reflect on problems ofprofessional practice. It improve professional practice of student teachers andclarity competenciesare perceived as valuable for TEYL.They also enhance mastery and presentations of language elements and learning activities and classroom management.Italso shows more pedagogical reasoning that as a vehiclefor competencies acquisition and teacher reflection.The cooperating teacher is akey success of studentteachers' interaction with pupils, classroom management, and adaptation ofcontent to relevant aspects of pupils' learning needs. Lecturer‘s feedback assists studentteachers in setting goals for improvement. Thepeer coach functions of collegiality, technicalfeedback, adaptation to students, analysis of application, and support.

  6. Negative Associations between Perceived Training Load, Volume and Changes in Physical Fitness in Professional Soccer Players.

    Science.gov (United States)

    Arcos, Asier Los; Martínez-Santos, Raul; Yanci, Javier; Mendiguchia, Jurdan; Méndez-Villanueva, Alberto

    2015-06-01

    The purpose of this study was to examine the usefulness of the rating of perceived exertion training load for monitoring changes in several aerobic fitness and neuromuscular performance variables during 9 weeks of soccer training in young professional players. Nineteen male soccer players (20.2 ± 1.9 years) belonging to the same reserve team of a Spanish La Liga Club participated in this study. Countermovement jump (CMJ), CMJ arm swing, single leg CMJ, a sprint running test (i.e., 5 m and 15 m times) and an aerobic fitness running test were performed at the start of the pre-season (Test 1) and 9 weeks later (Test 2). During 9 weeks, after each training session and match, players reported their rating of perceived exertion (RPE) separately for respiratory (RPEres) and leg musculature (RPEmus) effort. The training load (TL) was calculated by multiplying the RPE value by the duration in minutes of each training session or match. Accumulated RPEmus, and associated TL, as well as accumulated training volume were negatively correlated with the changes in most physical fitness attributes after 9 weeks of training (r = -0.51 to -0.64). Present results suggest that a high perception of leg muscular effort associated with training sessions and matches, as well as an excessive accumulation of training volume (time), can impair the improvement in several physical fitness variables believed to be relevant for on-field soccer performance. Therefore, the independent assessment of leg muscular effort to quantify TL can be an interesting additional monitoring measure in soccer training. Key pointsThe purpose of this study was to examine the usefulness of the perceived exertion-derived TL for monitoring changes in several aerobic fitness and neuromuscular parameters during 9 weeks of soccer training in young professional players.A high perception of leg muscular effort associated with training and matches, as well as an excessive accumulation of training volume (time), can impair

  7. Professional Soccer Player Neuromuscular Responses and Perceptions to Acute Whole Body Vibration Differ from Amateur Counterparts.

    Science.gov (United States)

    Cloak, Ross; Lane, Andrew; Wyon, Matthew

    2016-03-01

    Acute whole body vibration (WBV) is an increasingly popular training technique amongst athletes immediately prior to performance and during scheduled breaks in play. Despite its growing popularity, evidence to demonstrate its effectiveness on acute neuromuscular responses is unclear, and suggestions that athlete ability impacts effectiveness warrant further investigation. The purpose of this study was to compare the neuromuscular effects of acute WBV and perceptions of whether WBV is an effective intervention between amateur and professional soccer players. Participants were 44 male soccer players (22 professional and 22 amateur; age: 23.1 ± 3.7 years, body mass: 75.6 ± 8.8 kg and height: 1.77 ± 0.05 m). Participants in each group were randomly assigned to either an intervention of 3 x 60 s of WBV at 40 Hz (8mm peak-to-peak displacement) or control group. Peak knee isometric force, muscle activation and post activation potentiation (PAP) of the knee extensors along with self-report questionnaire of the perceived benefits of using the intervention were collected. A three-way ANOVA with repeated measures revealed professional players demonstrated a significant 10.6% increase (p amateur players. A significant difference (p amateur players were reported across measurements. Results also indicated professional players reported significantly stronger positive beliefs in the effectiveness of the WBV intervention (p amateur players. Acute WBV elicited a positive neuromuscular response amongst professional players identified by PAP and improvements in knee isometric peak force as well as perceived benefits of the intervention, benefits not found among amateur players. Key pointsAcute WBV improves knee extensor peak isometric force output and PAP amongst professional and not amateur soccer playersProfessional players perceived acute WBV as more beneficial to performance than amateur playersIsometric strength,vibration intensity and duration appear to influence results

  8. A randomized controlled pilot study testing three types of health coaches for obesity treatment: Professional, Peer, and Mentor

    Science.gov (United States)

    Leahey, Tricia M.; Wing, Rena R.

    2012-01-01

    Despite their popularity, empirical support for health coaches is limited. This study examined the feasibility and preliminary efficacy of 3 types of coaching models for obesity treatment. Participants (N=44) were randomized to 6 months of reduced intensity group behavioral weight loss (rBWL) plus 1 of 3 types of health coaches: a) Professional (rBWL interventionist); b) Peer (group members randomly paired and coached one another); or c) Mentor (successful weight loser). Groups met weekly for the first 6-weeks, biweekly for the next 6-weeks, and monthly thereafter, for a total of 12 meetings. During weeks that group did not meet, participants emailed their weight loss information to their coach and received feedback. Coaches were trained on appropriate coaching strategies and feedback delivery. Retention was 95%. Participants emailed their progress to their coach 10.8±1.9 out of the 12 weeks that there were no group meetings. Coaches responded with feedback 94% of the time. Percent weight losses at 6-months were 9.6±8.1, 9.1±5.0, and 5.7±5.6 for the Professional, Peer, and Mentor conditions, respectively. More participants in the Professional and Peer conditions lost 10% of their initial body weight (Professional: 56%; Peer: 50%; Mentor: 17%), with a statistically significant difference between the Professional and Mentor conditions (p=0.03). These preliminary data suggest that combining a reduced intensity BWL program with health coaching may hold significant promise as a cost-effective obesity treatment paradigm. Larger trials are needed to conclusively determine whether adding coaches improves weight loss outcomes in reduced intensity treatments and to examine which type of coach is most effective. PMID:23784896

  9. Perceptions of success among South African soccer players: an ...

    African Journals Online (AJOL)

    This paper evaluates and describes themes surrounding the subjective perceptions of success in players and coaches at a professional South African soccer club. Literature around this topic is limited, particularly concerning the qualitative understandings of South African sportsmen and women, providing ample motivation ...

  10. Adapting to Finland through professional football : perceptions of players and coaches

    OpenAIRE

    Swarts, Christoffer M. J.

    2014-01-01

    The present study explores how football migrants (foreign professional football / soccer players) perceive the adaptation process in Finland. Globalization and legislation have made it easier for football players to work abroad. The amount of football migrants in Finland is increasing each year. The internationalization of Finnish football requires study. Successful adaptation has a positive outcome on a migrant, which will increase the chances of personal, and thus in the case of football, t...

  11. Awareness Based Coaching - a tool for leadership development: A qualitative study of how awareness based coaching can lead to personal and professional development amongst leaders

    OpenAIRE

    Hovin, Gitte Flakk

    2012-01-01

    Our world is growing increasingly complex, creating new challenges for leadership. Hence there is a need for leadership development to meet the larger society needs. Coaching is a well-known tool used to support leaders in their developmental process. The purpose of this thesis is to research the longer term impact of awareness based coaching on leaders’ personal and professional development. In order to explore and understand more about the impact of this new awareness based technology, I ha...

  12. The effect of coach and player injury knowledge, attitudes and beliefs on adherence to the FIFA 11+ programme in female youth soccer.

    Science.gov (United States)

    McKay, Carly D; Steffen, Kathrin; Romiti, Maria; Finch, Caroline F; Emery, Carolyn A

    2014-09-01

    Injury knowledge and beliefs influence uptake of prevention programmes, but the relationship between knowledge, beliefs and adherence remains unclear. To describe injury knowledge and beliefs among youth female soccer coaches and players, and to identify the relationship between these factors, different delivery strategies of the FIFA 11+ programme and adherence. A subcohort analysis from a cluster-randomised controlled trial of 31 female soccer teams (coaches n=29, players (ages 13-18) n=258). Preseason and postseason questionnaires were used to assess knowledge and beliefs. Teams recorded FIFA 11+ adherence during the season. At baseline, 62.8% (95% CI 48.4% to 77.3%) of coaches and 75.8% (95% CI 71.5% to 80.1%) of players considered 'inadequate warm-up' a risk factor for injury. There was no effect of delivery method (OR=1.1; 95% CI 0.8 to 1.5) or adherence (OR=1.0; 95% CI 0.9 to 1.1) on this belief. At baseline, 13.8% (95% CI 1.3% to 26.4%) of coaches believed a warm-up could prevent muscle injuries, but none believed it could prevent knee and ankle injuries. For players, 9.7% (95% CI 6.1% to 13.3%), 4.7% (95% CI 2.1% to 7.3%) and 4.7% (95% CI 2.1% to 7.3%) believed a warm-up would prevent muscle, knee and ankle injuries, respectively. Years of playing experience were negatively associated with high adherence for coaches (OR=0.93; 0.88 to 0.99) and players (OR=0.92; 0.85 to 0.98). There were gaps in injury knowledge and beliefs, which differed for coaches and players. Beliefs did not significantly affect adherence to the FIFA 11+, suggesting additional motivational factors should be considered. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

  13. Mixed Training Methods: Effects of Combining Resisted Sprints or Plyometrics with Optimum Power Loads on Sprint and Agility Performance in Professional Soccer Players

    Directory of Open Access Journals (Sweden)

    Irineu Loturco

    2017-12-01

    Full Text Available The aim of this study was to compare the effects of two different mixed training programs (optimum power load [OPL] + resisted sprints [RS] and OPL + vertical/horizontal plyometrics [PL] on neuromuscular performance of elite soccer players during a short-term training preseason. Eighteen male professional soccer players took part in this study. The athletes were pair-matched in two training groups: OPL + RS and OPL + PL. Unloaded and resisted sprinting speeds at 5-, 10-, 20-, and 30-m, change of direction (COD speed, and performance in the squat jump (SJ, countermovement jump (CMJ, and horizontal jump (HJ were assessed pre- and post- a 5-week training period. Magnitude based inference with the effect sizes were used for data analysis. A possible increase in the SJ and CMJ heights and a likely increase in the HJ distance were observed in the OPL + PL group. Meaningful improvements were observed in the COD speed test for both training groups comparing pre- and post-measures. In both unloaded and resisted sprints, meaningful decreases were observed in the sprinting times for all distances tested. This study shows that a mixed training approach which comprises exercises and workloads able to produce positive adaptations in different phases of sprinting can be a very effective strategy in professional soccer players. Moreover, the possibility of combining optimum power loads with resisted sprints and plyometrics emerges as a novel and suitable option for coaches and sport scientists, due to the applicability and efficiency of this strength-power training approach.

  14. Coaching Coaches

    DEFF Research Database (Denmark)

    Hedin, G.; Bendix, Lars Gotfred; Magnusson, B.

    2003-01-01

    We have developed a tandem of undergraduate courses for teaching XP and coaching of XP teams. This paper focuses on the coaching course and the coaching practices we have developed. The tandem of courses enables us to give a challenging and interesting course for the coaches, and, at the same tim......, allows us to afford on-site coaches for the younger students, providing them with a high quality environment for learning XP. We also describe our experiences from the first instance of the courses and how we have tackled the boot-strapping problem....

  15. The health profile of professional soccer players: future opportunities for injury prevention.

    Science.gov (United States)

    Volpi, Piero; Taioli, Emanuela

    2012-12-01

    Injuries are a major adverse event during a soccer player's career; they require medical and surgical treatment and rehabilitation and thus may interrupt the player's activity, often with severe physical and psychological sequel. Specialists have tried to identify the risk factors for injuries, in an attempt to discover predictors that could be prevented and or eliminated before the injury occurs, but the results are scarce. This article reviews the epidemiology of the frequency and occurrence of injuries in Italian soccer players, reports a list of preventable risk factors that are associated with injuries, and identifies preventable risk factors. We have identified personal factors (age, previous traumatic events, physical and biological characteristics of the player, life style habits such as smoking, alcohol, and diet, changes in physical-athletic aspects of the players, such as increased muscle strength, and use of medications) as possible risk factors for injuries. However, environmental factors such as changes in training techniques, field composition, and shoes structure may also have a major influence. This summary indicates that appropriate preventive measures can be undertaken to prevent injuries in professional soccer players. Professionals who are in close contacts with the players should be informed of the predictors of injuries and should be trained to intervene and plan appropriate preventive measures.

  16. Identification and Classification of Stakeholders in a Brazilian Professional Soccer Club

    Directory of Open Access Journals (Sweden)

    João Paulo Lara de Siqueira

    2015-11-01

    Full Text Available Whereas an initial step in the management of stakeholders is the identification and classification of these actors, this study sought to answer the research question: how managers of Brazilian professional soccer clubs identify and classify their stakeholders? The theoretical framework used was the Stakeholder Theory, developed by Freeman (1984 and other researchers. The method used was proposed by Almeida et al. (2000, which assesses the saliency through the concepts power, legitimacy and urgency, that were proposed in the study of Mitchell et al. (1997. There were two propositions concerning the context of Brazilian soccer clubs: first, that the urgency perceived by managers in the demands of a stakeholder is high when his legitimacy is high and other one is that the most salient stakeholders for the managers are those with high degrees of legitimacy. Stakeholders were surveyed as perceived by the managers of Sociedade Esportiva Palmeiras. Three types of stakeholders were classified as demanding (sponsors, partners and the partner for the construction of the new stadium and three as dependents (members, athletes of professional soccer team and the media. Other stakeholders identified were classified as irrelevant, including the fans and and the organized groups of fans. It can be said that in the specific case of these managers of this particular football club, the trend was the acceptance of both propositions. 

  17. Relationship between repeated sprint ability and aerobic capacity in professional soccer players.

    Science.gov (United States)

    Jones, Rhys M; Cook, Christian C; Kilduff, Liam P; Milanović, Zoran; James, Nic; Sporiš, Goran; Fiorentini, Bruno; Fiorentini, Fredi; Turner, Anthony; Vučković, Goran

    2013-01-01

    The aim of the present study was to investigate the relationship between maximal aerobic capacity (VO(2max)) and repeated sprint ability (RSA) in a group of professional soccer players. Forty-one professional soccer players (age 23 ± 4 yrs, height 180.0 ± 5.3 cm, weight 79.6 ± 5.3 kg) were required to perform tests to assess RSA and VO(2max) on two separate days with at least 48 hr rest between testing sessions. Each player performed a treadmill test to determine their VO(2max) and a test for RSA involving the players completing 6 × 40 m sprints (turn after 20 m) with 20 s active recovery between each sprint. There was a significant negative correlation between body mass normalised VO(2max) and mean sprint time (RSAmean) (r = -0.655; P soccer players in the recovery from repeated sprint type activities.

  18. Symptoms of Common Mental Disorders and Adverse Health Behaviours in Male Professional Soccer Players

    Directory of Open Access Journals (Sweden)

    Gouttebarge Vincent

    2015-12-01

    Full Text Available To present time, scientific knowledge about symptoms of common mental disorders and adverse health behaviours among professional soccer players is lacking. Consequently, the aim of the study was to determine the prevalence of symptoms of common mental disorders (distress, anxiety/depression, sleep disturbance and adverse health behaviours (adverse alcohol behaviour, smoking, adverse nutrition behaviour among professional soccer players, and to explore their associations with potential stressors (severe injury, surgery, life events and career dissatisfaction. Cross-sectional analyses were conducted on baseline questionnaires from an ongoing prospective cohort study among male professional players. Using validated questionnaires to assess symptoms of common mental disorders and adverse health behaviours as well as stressors, an electronic questionnaire was set up and distributed by players’ unions in 11 countries from three continents. Prevalence of symptoms of common mental disorders and adverse health behaviours among professional soccer players ranged from 4% for smoking and 9% for adverse alcohol behaviour to 38% for anxiety/depression and 58% for adverse nutrition behaviour. Significant associations were found for a higher number of severe injuries with distress, anxiety/depression, sleeping disturbance and adverse alcohol behaviour, an increased number of life events with distress, sleeping disturbance, adverse alcohol behaviour and smoking, as well as an elevated level of career dissatisfaction with distress, anxiety/depression and adverse nutrition behaviour. Statistically significant correlations (p<0.01 were found for severe injuries and career dissatisfaction with most symptoms of common mental disorders. High prevalence of symptoms of common mental disorders and adverse health behaviours was found among professional players, confirming a previous pilot-study in a similar study population.

  19. PPARα gene variants as predicted performance-enhancing polymorphisms in professional Italian soccer players

    Directory of Open Access Journals (Sweden)

    Proia P

    2014-12-01

    Full Text Available Patrizia Proia,1 Antonino Bianco,1 Gabriella Schiera,2 Patrizia Saladino,2 Valentina Contrò,1 Giovanni Caramazza,3 Marcello Traina,1 Keith A Grimaldi,4 Antonio Palma,1 Antonio Paoli5 1Sport and Exercise Sciences Research Unit, 2Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, University of Palermo, Palermo, Italy; 3Regional Sports School of CONI Sicilia, Sicily, Italy; 4Biomedical Engineering Laboratory, Institute of Communication and Computer Systems, National Technical University of Athens, Athens, Greece; 5Department of Biomedical Sciences, University of Padova, Padua, Italy Background: The PPARα gene encodes the peroxisome proliferator-activator receptor alpha, a central regulator of expression of other genes involved in fatty acid metabolism. The purpose of this study was to determine the prevalence of G allele of the PPARα intron 7 G/C polymorphism (rs4253778 in professional Italian soccer players. Methods: Sixty professional soccer players and 30 sedentary volunteers were enrolled in the study. Samples of venous blood were obtained at rest, in the morning, by conventional clinical procedures; blood serum was collected and total cholesterol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, and triglycerides were measured. An aliquot of anticoagulant-treated blood was used to prepare genomic DNA from whole blood. The G/C polymorphic site in PPARα intron 7 was scanned by using the PCR-RFLP (polymerase chain reaction restriction fragment length polymorphism protocol with TaqI enzyme. Results: We found variations in genotype distribution of PPARα polymorphism between professional soccer players and sedentary volunteers. Particularly, G alleles and the GG genotype were significantly more frequent in soccer players compared with healthy controls (64% versus 48%. No significant correlations were found between lipid profile and genotype background. Conclusion: Previous results

  20. Dietary analysis of young professional soccer players for 1 week during the competitive season.

    Science.gov (United States)

    Russell, Mark; Pennock, Anthony

    2011-07-01

    Limited data exist concerning the dietary practices of young professional soccer players that compete within the United Kingdom. Therefore, the purpose of this study was to investigate the nutritional and activity habits of professional male soccer players (n = 10; age: 17 ± 1 years, height: 1.72 ± 0.01 m, mass: 67.5 ± 1.8 kg, estimated maximal aerobic capacity: 57.8 ± 0.9 ml·kg·min) who played for the youth team of a UK-based Championship club. All players recorded their 7-day dietary intake and activity habits during a competitive week that included a match day, 4- training days, and 2 rest days in the first half of the 2009/2010 playing season. The intake of carbohydrates (5.9 ± 0.4 g·kg·d), proteins (1.7 ± 0.1 g·kg·d), and fats (1.5 ± 0.1 g·kg·d) represented 56 ± 1, 16 ± 1, and 31 ± 1% of the mean daily energy intake respectively. The intake of fiber was found to be significantly lower than Recommended Nutrient Intake (RNI) values (67% of RNI, p soccer players were inadequate to sustain optimized performance throughout training and match play. Youth soccer players should therefore seek to ensure that their diets contain adequate energy through increased total caloric intake, while also optimizing the proportion of energy derived from carbohydrates and ensuring that enough fiber-rich foods are consumed.

  1. Preseason preparation training and endothelial function in elite professional soccer players

    Directory of Open Access Journals (Sweden)

    Androulakis NE

    2015-11-01

    Full Text Available Nikolaos E Androulakis,1 Nikolaos E Koundourakis,2 Eleni Nioti,1 Paraskevi Spatharaki,1 Despina Hatzisymeon,1 Ioannis Miminas,1 Michael G Alexandrakis1,3 1Hematology Laboratory, Iraklion University Hospital, Iraklion, Greece; 2Department of Clinical Chemistry-Biochemistry, 3Department of Hematology, School of Medicine, University of Crete, Iraklion, Greece Aim: To examine whether a high volume of soccer-specific training can lead to endothelial activation and/or dysfunction in professional soccer players due to exercise-induced oxidative stress. Methods: Twenty-three (15 nonsmokers and eight smokers healthy, elite male professional soccer players (mean age: 25.2±4.3 years, BMI: 23.1±1.3 kg/m2, fat: 7.8%±2.6% were selected for this study. All participants had a full clinical and laboratory evaluation. von Willebrand factor antigen (vWf Ag plasma levels were measured on two different occasions: 1 day before the beginning of the preseason preparation period and after 7 weeks of strenuous exercise. Results: Mean vWf Ag plasma levels were significantly decreased from 95.1%±26% to 88.3%±27.2% at the end of the experimental period (P=0.018, suggesting a potential beneficial effect on the endothelium of these athletes. Further analysis showed that age greater than 29 years with an age range from 29 to 34 years can not impair this effect (P>0.05. Conclusion: Strenuous exercise did not lead to endothelium activation or dysfunction in well-trained elite soccer players. On the contrary, it seemed to produce a beneficial effect on the endothelium of these players. Keywords: endothelium, strenuous exercise, smoking

  2. Ethnic Differences in Bony Hip Morphology in a Cohort of 445 Professional Male Soccer Players.

    Science.gov (United States)

    Mosler, Andrea B; Crossley, Kay M; Waarsing, Jan H; Jomaah, Nabil; Weir, Adam; Hölmich, Per; Agricola, Rintje

    2016-11-01

    Participation in high-impact athletic activities has recently been associated with a higher prevalence of cam deformity. Bony hip morphology has also emerged as an important factor in the development of hip osteoarthritis. However, it is unknown whether bony morphology differs between ethnicities in athletes participating in high-impact sports. To investigate whether the prevalence of specific bony hip morphological abnormalities differed between professional male soccer players of diverse ethnic backgrounds. Cross-sectional study; Level of evidence, 3. Professional male soccer players from an entire league attending preparticipation screening were invited to participate in this study. Ethnicity was registered, and standardized radiographs of anteroposterior pelvic and Dunn views were obtained. Cam and pincer deformity, and acetabular dysplasia were quantified using the alpha angle, triangular index, and lateral center-edge angle (LCEA). Regression analyses with generalized estimating equations were used to determine prevalence differences in bony hip morphology. A total of 445 male soccer players (890 hips; mean age ± SD, 25 ± 4.9 years) participated in the study, representing the following ethnic groups: Arabic (59%), black (24%), Persian (7%), white (6%), East Asian (2%), and other (2%). The prevalence of cam deformity (alpha angle >60°) ranged from 57.5% to 71.7% across 4 of the groups, but East Asians had a significantly lower prevalence (18.8%; P ≤ .032). A large cam deformity (alpha angle >78°) was more prevalent in white (33.3%) compared with black soccer players (17.8%; P = .041) and was absent in East Asian players. Pincer deformity (LCEA >40°) was uncommon (3%) in all ethnicities. The prevalence of acetabular dysplasia (LCEA <20°) ranged from 8.0% to 16.7%, apart from the white group, in which prevalence was only 1.9% (P = .03). The prevalence of a cam deformity and acetabular dysplasia differed between ethnicities in this cohort of professional

  3. Fractures in German elite male soccer.

    Science.gov (United States)

    Schiffner, Erik; Latz, David; Grassmann, Jan P; Schek, Alberto; Scholz, Armin; Windolf, Joachim; Jungbluth, Pascal; Schneppendahl, Johannes

    2017-10-27

    Aim of this retrospective cohort study was to identify fracture epidemiology and off times after different types of fractures in German male elite soccer players from the first division Bundesliga based on information from the public media. Exposure and fracture data over 7.5 consecutive seasons (2009/10 -1.Half 2016/17) were collected from two media based register (transfermarkt.de® and kicker.de®). 357 fractures from 290 different players were recorded with an incidences of 0.19/1000 h of exposure (95% 0.14 - 0.24). Most fractures in German elite soccer players involved the lower extremities (35.3%), the head/face (30.3%) and the upper extremities (24.9%). The median off time after a fracture in German elite male professional soccer in 7.5 Season was 51.1 days (range 0-144). The number of fractures per 100 players per season decreased between 2009 and 2016. There was no significant difference in overall fracture incidence when comparing players at different position (p=0.11). Goalkeepers have a significantly (pelite soccer. The incidence of fractures in elite German soccer players decreased between 2009 and 2016. The most fractures occur in the lower extremities and there is no difference in overall fracture risk for players at different playing positions. The information from our study might be of a great importance to medical practitioners, soccer coaches and soccer manager.

  4. Return to Training and Playing After Acute Lisfranc Injuries in Elite Professional Soccer and Rugby Players.

    Science.gov (United States)

    Deol, Rupinderbir Singh; Roche, Andrew; Calder, James D F

    2016-01-01

    Lisfranc joint injuries are increasingly recognized in elite soccer and rugby players. Currently, no evidence-based guidelines exist on time frames for return to training and competition after surgical treatment. To assess the time to return to training and playing after Lisfranc joint injuries. Case series; Level of evidence, 4. A consecutive series of 17 professional soccer and rugby players in the English Premier/Championship leagues was assessed using prospectively collected data. All were isolated injuries sustained during training or competitive matches. Each player had clinical and radiological evidence of an unstable Lisfranc injury and required surgical treatment. A standardized postoperative regimen was used. The minimum follow-up time was 2 years. Clinical and radiological follow-up was obtained in all 17 players. Seven players had primarily ligamentous injuries, and 10 had bony injuries. The time from injury to fixation ranged from 8 to 31 days, and hardware was removed at 16 weeks postoperatively. One athlete retired after a ligamentous injury; the remaining 16 players returned to training and full competition. Excluding the retired player, the mean time to return to training was 20.1 weeks (range, 18-24 weeks) and to full competition was 25.3 weeks (range, 21-31 weeks). There was a significant difference between the mean time to return to competition for rugby (27.8 weeks) and soccer players (24.1 weeks; P = .02) and for ligamentous (22.5 weeks) compared with bony injuries (26.9 weeks; P = .003). Three patients suffered deep peroneal nerve sensation loss, from which 1 patient did not fully recover. Return to competitive elite-level soccer and rugby is possible after surgically treated Lisfranc injuries. Return to training can take up to 24 weeks and return to playing up to 31 weeks, with bony injuries taking longer. © 2015 The Author(s).

  5. Negative Associations between Perceived Training Load, Volume and Changes in Physical Fitness in Professional Soccer Players

    Directory of Open Access Journals (Sweden)

    Asier Los Arcos, Raul Martínez-Santos, Javier Yanci, Jurdan Mendiguchia, Alberto Méndez-Villanueva

    2015-06-01

    Full Text Available The purpose of this study was to examine the usefulness of the rating of perceived exertion training load for monitoring changes in several aerobic fitness and neuromuscular performance variables during 9 weeks of soccer training in young professional players. Nineteen male soccer players (20.2 ± 1.9 years belonging to the same reserve team of a Spanish La Liga Club participated in this study. Countermovement jump (CMJ, CMJ arm swing, single leg CMJ, a sprint running test (i.e., 5 m and 15 m times and an aerobic fitness running test were performed at the start of the pre-season (Test 1 and 9 weeks later (Test 2. During 9 weeks, after each training session and match, players reported their rating of perceived exertion (RPE separately for respiratory (RPEres and leg musculature (RPEmus effort. The training load (TL was calculated by multiplying the RPE value by the duration in minutes of each training session or match. Accumulated RPEmus, and associated TL, as well as accumulated training volume were negatively correlated with the changes in most physical fitness attributes after 9 weeks of training (r = -0.51 to -0.64. Present results suggest that a high perception of leg muscular effort associated with training sessions and matches, as well as an excessive accumulation of training volume (time, can impair the improvement in several physical fitness variables believed to be relevant for on-field soccer performance. Therefore, the independent assessment of leg muscular effort to quantify TL can be an interesting additional monitoring measure in soccer training.

  6. Examination of the external and internal load indicators' association with overuse injuries in professional soccer players.

    Science.gov (United States)

    Jaspers, Arne; Kuyvenhoven, Jurian P; Staes, Filip; Frencken, Wouter G P; Helsen, Werner F; Brink, Michel S

    2017-10-13

    Research in professional soccer focusing on the relevance of external and internal load indicators for injury prevention is scarce. This study examined the relationship between load indicators and overuse injuries. Prospective cohort study. Data were collected from 35 professional male soccer players over two seasons. Following load indicators were examined: total distance covered (TD), distance covered at high speed (THSR; >20kmh -1 ), number of accelerations (ACC eff ; >1ms -2 ), number of decelerations (DEC eff ; loads and acute:chronic workload ratios (ACWR) were calculated and split into low, medium and high groups. Only overuse injuries were included in the analysis to focus on their specific relationship with the load indicators. Generalized estimating equations were applied to analyse the relationship between load indicators and overuse injuries in the subsequent week. In total, 64 overuse injuries were registered. For cumulative loads, results indicated an increased injury risk for higher 2- to 4-weekly loads as indicated by TD, DEC eff , and RPE multiplied by duration. For ACWR, a high ratio for THSR (>1.18) resulted in a higher injury risk. In contrast, a lower injury risk was found when comparing medium ratios for ACC eff (0.87-1.12), DEC eff (0.86-1.12), and RPE x duration (0.85-1.12) to low ratios. Findings demonstrate that mainly external load indicators are associated with increased or decreased injury risk. The monitoring of various load indicators is recommended for injury prevention in professional soccer. Copyright © 2017 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.

  7. LOWER LIMB STRENGTH IN PROFESSIONAL SOCCER PLAYERS: PROFILE, ASYMMETRY, AND TRAINING AGE

    Directory of Open Access Journals (Sweden)

    Konstantinos Fousekis

    2010-09-01

    Full Text Available Kicking and cutting skills in soccer are clearly unilateral, require asymmetrical motor patterns and lead to the development of asymmetrical adaptations in the musculoskeletal function of the lower limbs. Assuming that these adaptations constitute a chronicity-dependent process, this study examined the effects of professional training age (PTA on the composite strength profile of the knee and ankle joint in soccer players. One hundred soccer players (n=100 with short (5-7 years, intermediate (8-10 years and long (>11 years PTA were tested bilaterally for isokinetic concentric and eccentric strength of the knee and ankle muscles. Knee flexion-extension was tested concentrically at 60°, 180° and 300 °/sec and eccentrically at 60° and 180 °/sec. Ankle dorsal and plantar flexions were tested at 60 °/sec for both the concentric and eccentric mode of action. Bilaterally averaged muscle strength [(R+L/2] increased significantly from short training age to intermediate and stabilized afterwards. These strength adaptations were mainly observed at the concentric function of knee extensors at 60°/sec (p = 0. 023, knee flexors at 60°/sec (p = 0.042 and 180°/sec (p = 0.036, and ankle plantar flexors at 60o/sec (p = 0.044. A linear trend of increase in isokinetic strength with PTA level was observed for the eccentric strength of knee flexors at 60°/sec (p = 0.02 and 180°/sec (p = 0.03. Directional (R/L asymmetries decreased with PTA, with this being mainly expressed in the concentric function of knee flexors at 180°/sec (p = 0.04 and at 300 °/sec (p = 0.03. These findings confirm the hypothesis of asymmetry in the strength adaptations that take place at the knee and ankle joint of soccer players mainly along with short and intermediate PTA. Players with a longer PTA seem to adopt a more balanced use of their lower extremities to cope with previously developed musculoskeletal asymmetries and possibly reduce injury risk. This has certain

  8. Return to sport after surgical treatment for pubalgia among professional soccer players,

    Directory of Open Access Journals (Sweden)

    Roberto Dantas de Queiroz

    2014-06-01

    Full Text Available OBJECTIVE: to evaluate the return to sport after surgical treatment for pubalgia among 30 professional soccer players and describe the surgical technique used.METHOD: this case series was evaluated by means of a questionnaire and physical examination on 30 male professional soccer players of mean age 24.4 years (range: 18-30. The mean duration of the symptoms was 18.6 months (range: 13-28. The diagnosis was made through clinical investigation, special maneuvers and complementary examinations, by the same examiner. All the patients underwent surgical treatment after conservative treatment failed; all procedures were performed by the same surgeon using the same technique. Nonparametric comparisons were made to investigate the time taken to recover after the surgery, for the patients to return to their sport.RESULTS: five patients evolved with hematoma, with the need to remove the stitches three weeks after the operation because of a small dehiscence at the site of the operative wound. The wound healed completely in all these cases by five weeks after the surgery. Four patients presented dysuria in the first week, but improved in the second postoperative week. The mean time taken to return to training was around eight weeks (range: seven-nine. All the players returned to competitive soccer practice within 16 weeks. When asked about their degree of satisfaction after the operation (satisfied or dissatisfied, taking into consideration their return to the sport, there was 100% satisfaction, and they returned to professional practice at the same competitive level as before the injury. This degree of satisfaction continued to the last assessment, which was made after 36 months of postoperative follow-up.CONCLUSION: the surgical technique presented in this case series, with trapezoidal resection of the pubic symphysis in association with bilateral partial tenotomy of the long adductor, was a fast and effective procedure with a low rate of postoperative

  9. Return to sport after surgical treatment for pubalgia among professional soccer players☆☆☆

    Science.gov (United States)

    de Queiroz, Roberto Dantas; de Carvalho, Rogério Teixeira; de Queiroz Szeles, Paulo Roberto; Janovsky, César; Cohen, Moisés

    2014-01-01

    Objective to evaluate the return to sport after surgical treatment for pubalgia among 30 professional soccer players and describe the surgical technique used. Method this case series was evaluated by means of a questionnaire and physical examination on 30 male professional soccer players of mean age 24.4 years (range: 18–30). The mean duration of the symptoms was 18.6 months (range: 13–28). The diagnosis was made through clinical investigation, special maneuvers and complementary examinations, by the same examiner. All the patients underwent surgical treatment after conservative treatment failed; all procedures were performed by the same surgeon using the same technique. Nonparametric comparisons were made to investigate the time taken to recover after the surgery, for the patients to return to their sport. Results five patients evolved with hematoma, with the need to remove the stitches three weeks after the operation because of a small dehiscence at the site of the operative wound. The wound healed completely in all these cases by five weeks after the surgery. Four patients presented dysuria in the first week, but improved in the second postoperative week. The mean time taken to return to training was around eight weeks (range: seven–nine). All the players returned to competitive soccer practice within 16 weeks. When asked about their degree of satisfaction after the operation (satisfied or dissatisfied), taking into consideration their return to the sport, there was 100% satisfaction, and they returned to professional practice at the same competitive level as before the injury. This degree of satisfaction continued to the last assessment, which was made after 36 months of postoperative follow-up. Conclusion the surgical technique presented in this case series, with trapezoidal resection of the pubic symphysis in association with bilateral partial tenotomy of the long adductor, was a fast and effective procedure with a low rate of postoperative

  10. Relationship between static and dynamic balance abilities in Italian professional and youth league soccer players.

    Science.gov (United States)

    Pau, Massimiliano; Arippa, Federico; Leban, Bruno; Corona, Federica; Ibba, Gianfranco; Todde, Francesco; Scorcu, Marco

    2015-08-01

    To assess the existence of correlations between static and dynamic balance abilities in young and professional elite soccer players. Cross-sectional. Fifty-one elite players who regularly compete at national level divided into two groups: Professional (age 18-34, n = 20) and Under 15-17 (age 14-16, n = 31). Dynamic balance was assessed for the case of a single-leg landing task by means of vertical time to stabilization (TTS) and postural sway calculated on the basis of center-of-pressure (COP) trajectories (sway area, COP displacements in antero-posterior and medio-lateral direction, COP path length). The same parameters were also measured for a 20 s one-legged stance to assess static balance abilities. No significant correlations were found between static and dynamic balance parameters except for TTS and COP displacements in the antero-posterior direction (r = 0.29, p = 0.003). Professional players are characterized by lower TTS in comparison with youth leagues players (0.767 vs. 1.188 s for the dominant limb, p balance in soccer players should be performed with both dynamic and static tests, considering that the postural control performances in the two cases are not related. Copyright © 2014 Elsevier Ltd. All rights reserved.

  11. Professional Soccer Player Neuromuscular Responses and Perceptions to Acute Whole Body Vibration Differ from Amateur Counterparts

    Directory of Open Access Journals (Sweden)

    Ross Cloak, Andrew Lane, Matthew Wyon

    2016-03-01

    Full Text Available Acute whole body vibration (WBV is an increasingly popular training technique amongst athletes immediately prior to performance and during scheduled breaks in play. Despite its growing popularity, evidence to demonstrate its effectiveness on acute neuromuscular responses is unclear, and suggestions that athlete ability impacts effectiveness warrant further investigation. The purpose of this study was to compare the neuromuscular effects of acute WBV and perceptions of whether WBV is an effective intervention between amateur and professional soccer players. Participants were 44 male soccer players (22 professional and 22 amateur; age: 23.1 ± 3.7 years, body mass: 75.6 ± 8.8 kg and height: 1.77 ± 0.05 m. Participants in each group were randomly assigned to either an intervention of 3 x 60 s of WBV at 40 Hz (8mm peak-to-peak displacement or control group. Peak knee isometric force, muscle activation and post activation potentiation (PAP of the knee extensors along with self-report questionnaire of the perceived benefits of using the intervention were collected. A three-way ANOVA with repeated measures revealed professional players demonstrated a significant 10.6% increase (p < 0.01, Partial Eta2 = 0.22 in peak knee isometric force following acute WBV with no significant differences among amateur players. A significant difference (p < 0.01, Partial Eta2 = 0.16 in PAP amongst professional players following acute WBVT was also reported. No significant differences amongst amateur players were reported across measurements. Results also indicated professional players reported significantly stronger positive beliefs in the effectiveness of the WBV intervention (p < 0.01, Partial Eta2 = 0.27 compared to amateur players. Acute WBV elicited a positive neuromuscular response amongst professional players identified by PAP and improvements in knee isometric peak force as well as perceived benefits of the intervention, benefits not found among amateur players.

  12. Injury characteristics in the German professional male soccer leagues after a shortened winter break.

    Science.gov (United States)

    aus der Fünten, Karen; Faude, Oliver; Lensch, Jochen; Meyer, Tim

    2014-01-01

    The winter break in the top 2 German professional soccer leagues was shortened from 6.5 to 3.5 weeks in the 2009-2010 season. To investigate whether this change affected injury characteristics by comparing the second half of the 2008-2009 (long winter break) with the equivalent period in the 2009-2010 season (short winter break). Prospective cohort study. German male professional soccer leagues. Seven professional German male soccer teams (184 players in the 2008-2009 season, 188 players in the 2009-2010 season). Injury incidences and injury characteristics (cause of injury, location, severity, type, diagnosis), including their monthly distribution, were recorded. A total of 300 time-loss injuries (2008-2009 n = 151, 2009-2010 n = 149) occurred. The overall injury incidence per 1000 soccer hours was 5.90 (95% confidence interval = 5.03, 6.82) in 2008-2009 and 6.55 (5.58, 7.69) in 2009-2010. Match injuries per 1000 hours were 31.5 (25.0, 38.0) in the first season and 26.5 (20.2, 32.7) in the second season; the corresponding training values were 2.67 (2.08-3.44) and 3.98 (3.19-4.95), respectively. The training injury incidence (incidence rate ratio = 1.49 [95% confidence interval = 1.07, 2.08], P = .02) and the risk of sustaining a knee injury (incidence rate ratio = 1.66 [1.00, 2.76], P = .049) were higher in 2009-2010 after the short winter break; the incidence of moderate and severe injuries (time loss >7 days) trended higher (incidence rate ratio = 1.34 [0.96, 1.86], P = .09). Shortening the winter break from 6.5 to 3.5 weeks did not change the overall injury incidence; however, a higher number of training, knee, and possibly more severe injuries (time loss >7 days) occurred.

  13. EFFECTS OF ARTIFICIAL TURF AND NATURAL GRASS ON PHYSICAL AND TECHNICAL PERFORMANCE OF PROFESSIONAL SOCCER PLAYERS

    Directory of Open Access Journals (Sweden)

    Juan Carlos Ávalos Guillén

    2017-05-01

    Full Text Available The purpose of this study was to compare the effect of artificial turf (AT and natural grass (NG on the physical and technical performance of professional soccer players. A total of 17 healthy male soccer players (24.0 ± 4.1 years, height 174 ± 6.1 cm; body weight 73.4 ± 6.3 kg; body fat % 14.2 ± 2.3; VO2max 55.5 ± 5.3 ml/kg/min from a Costa Rican Professional Soccer League club were subjected to different tests in both types of surfaces (technical test, agility test, repeated sprint ability test, and a small-sided game [8 minutes, 32 x 32 meters, 5 vs. 5]. Players were monitored using a GPS in two sessions, separated by 48 hours, during the club’s pre-season. There were no significant differences between the two types of surfaces for the technical, agility, and repeated sprint ability tests. The physiological and kinematic variables analyzed during the small-sided game presented significant differences in average heart rate (NG = 168.5 ± 8.8, AT = 154.8 ± 11.8, p <.001, maximum heart rate (NG = 183.2 ± 8.3, AT = 175.9 ± 10.4, p =.02, body load (NG = 34.3 ± 11.2, AT = 30.5 ± 11.4, p =.03, and total impacts (NG = 230.1 ± 89.5, AT = 194. 8 ± 86.4, p=.03. It is concluded that playing on the natural grass surface caused more impact on physiological and perceived body load in players. In the case of technical variables, it is concluded that there were no statistically significant differences between the two types of surfaces (p <0.05.

  14. Straight-line and change of direction intermittent running in professional soccer players.

    Science.gov (United States)

    Fessi, Mohamed S; Farhat, Fayçal; Dellal, Alexandre; Malone, James J; Moalla, Wassim

    2017-04-19

    The present study aimed to investigate the difference between straight-line (STL) and change of direction (COD) intermittent running exercises in soccer players. Seventeen male professional soccer players performed the agility T-test and 6 intermittent running exercises: 10s at 130% of maximal aerobic speed (MAS) alternated with 10s of rest (10-10), 15s at 120% of MAS alternated with 15s of rest (15-15) and 30s at 110% of MAS alternated with 30s of rest (30-30) both in STL and with COD. All exercises were monitored using a global positioning system. Heart rate was measured during exercises and the rate of perceived exertion (RPE) was collected post-exercise. Delta (Δ) between covered distance in STL and COD exercises at a similar load was calculated and relationships between T-test and Δ distance were analysed. COD intermittent exercises showed a significantly decreased distance covered and an increased number of accelerations, heart rate peak and RPE value compared to STL intermittent exercises at a similar load. High relationships were observed between T-test performance and Δ distance in 10-10 (r = 0.72, P distance in 30-30 (r = -0.37, P = 0.2). Intermittent COD exercises were associated with higher acceleration, heart rate peak and RPE compared to STL during 10-10 and 15-15 exercises. The ability to rapidly change direction is a crucial quality to perform intense sport-specific running in professional soccer players.

  15. A comunicação dos treinadores de futebol de equipes infanto-juvenis amadores e profissionais durante a competição The coach's communication with scholastic and adult teams during soccer matches

    Directory of Open Access Journals (Sweden)

    Fernando Jorge Lourenço dos Santos

    2012-06-01

    Full Text Available No futebol, a comunicação durante a competição é a forma que o treinador utiliza para transmitir informação com o objetivo de otimizar o rendimento dos jogadores. Pretendemos caracterizar e comparar os comportamentos de instrução dos treinadores de times de jogadores infanto-juvenis e adultos. Foram filmados dez treinadores (cinco de equipes infanto-juvenis e cinco de equipes de adultos em dezenove jogos. O sistema de observação para recolha de dados relativos ao comportamento de instrução foi o SAIC. Os resultados obtidos demonstram a existência de diferenças entre os treinadores de equipes infanto-juvenis e de adultos no que diz respeito à instrução, à atenção e ao comportamento motor reativo.During soccer competitions, coaches communicate with the players to address information that should optimize performance of the players. Our purpose is to characterize and compare the coach behaviors during instruction to adults and scholastic teams. Ten coaches (five from scholastic soccer teams and five from adult teams were videotaped during nineteen games. The observation system used for data collection of instruction behaviors was the SAIC. The results indicate the existence of differences between coaches from scholastic soccer teams and five from adult teams with regard to instruction, attention and reactive motor behavior.

  16. Seasonal DXA-measured body composition changes in professional male soccer players.

    Science.gov (United States)

    Milanese, Chiara; Cavedon, Valentina; Corradini, Giuliano; De Vita, Francesco; Zancanaro, Carlo

    2015-01-01

    This work investigated changes in body composition of professional soccer players attending an Italian Serie A club across the competitive season; it is original insofar as body composition was assessed at multiple time points across the season using the accurate three-compartment model provided by Dual-Energy X-Ray Absorptiometry (DXA). Thirty-one players (4 goalkeepers, 13 defenders, 8 midfielders, 6 forwards) underwent DXA and anthropometry at pre-, mid- and end-season. One operator measured whole body and regional body composition (fat mass, FM; fat-free soft tissue mass, FFSTM; mineral mass). Two players were excluded from analysis due to serious injury. Data were analysed with repeated measures ANOVA; factors were season time point and playing position. Results showed that whole-body FM and %FM significantly (P professional soccer players undergo changes in their FM, FFSTM, and mineral mass across the season with some regional variations, irrespective of the playing position. Changes are mostly positive at mid-season, possibly due to difference in training between the first and second phase of the season.

  17. The Relationship between Coach Leadership, the Coach-Athlete Relationship, Team Success, and the Positive Developmental Experiences of Adolescent Soccer Players

    Science.gov (United States)

    Vella, Stewart A.; Oades, Lindsay G.; Crowe, Trevor P.

    2013-01-01

    Background: The goals of participation youth sports are primarily concerned with the facilitation of positive youth development as opposed to outright success. Consequently, there are strong theoretical and empirical links between sports coaching and athlete development. Transformational leadership behaviours, in particular, have been…

  18. Somatic, Endurance Performance and Heart Rate Variability Profiles of Professional Soccer Players Grouped According to Age

    Directory of Open Access Journals (Sweden)

    Botek Michal

    2016-12-01

    Full Text Available This cross-sectional study compared somatic, endurance performance determinants and heart rate variability (HRV profiles of professional soccer players divided into different age groups: GI (17–19.9 years; n = 23, GII (20–24.9 years; n = 45, GIII (25–29.9 years; n = 30, and GIV (30–39 years; n = 26. Players underwent somatic and HRV assessment and maximal exercise testing. HRV was analyzed by spectral analysis of HRV, and high (HF and low (LF frequency power was transformed by a natural logarithm (Ln. Players in GIV (83 ± 7 kg were heavier (p 25 years showed negligible differences in Pmax unlike the age group differences demonstrated in VO2max. A shift towards relative sympathetic dominance, particularly due to reduced vagal activity, was apparent after approximately 8 years of competing at the professional level.

  19. HANDBOOK OF SOCCER MATCH ANALYSIS: A SYSTEMATIC APPROACH TO IMPROVING PERFORMANCE

    Directory of Open Access Journals (Sweden)

    Christopher Carling

    2006-03-01

    Full Text Available DESCRIPTION This book addresses and appropriately explains the soccer match analysis, looks at the very latest in match analysis research, and at the innovative technologies used by professional clubs. This handbook is also bridging the gap between research, theory and practice. The methods in it can be used by coaches, sport scientists and fitness coaches to improve: styles of play, technical ability and physical fitness; objective feedback to players; the development of specific training routines; use of available notation software, video analysis and manual systems; and understanding of current academic research in soccer notational analysis. PURPOSE The aim is to provide a prepared manual on soccer match analysis in general for coaches and sport scientists. Thus, the professionals in this field would gather objective data on the players and the team, which in turn could be used by coaches and players to learn more about performance as a whole and gain a competitive advantage as a result. The book efficiently meets these objectives. AUDIENCE The book is targeted the athlete, the coach, the sports scientist professional or any sport conscious person who wishes to analyze relevant soccer performance. The editors and the contributors are authorities in their respective fields and this handbook depend on their extensive experience and knowledge accumulated over the years. FEATURES The book demonstrates how a notation system can be established to produce data to analyze and improve performance in soccer. It is composed of 9 chapters which present the information in an order that is considered logical and progressive as in most texts. Chapter headings are: 1. Introduction to Soccer Match Analysis, 2. Developing a Manual Notation System, 3. Video and Computerized Match Analysis Technology, 4. General Advice on Analyzing Match Performance, 5. Analysis and Presentation of the Results, 6. Motion Analysis and Consequences for Training, 7. What Match

  20. Talent identification and selection process of outfield players and goalkeepers in a professional soccer club.

    Science.gov (United States)

    Gil, Susana María; Zabala-Lili, Jon; Bidaurrazaga-Letona, Iraia; Aduna, Badiola; Lekue, Jose Antonio; Santos-Concejero, Jordan; Granados, Cristina

    2014-12-01

    Abstract The aim of this study was to analyse the talent identification process of a professional soccer club. A preselection of players (n = 64) aged 9-10 years and a final selection (n = 21) were performed by the technical staff through the observation during training sessions and matches. Also, 34 age-matched players of an open soccer camp (CampP) acted as controls. All participants underwent anthropometric, maturity and performance measurements. Preselected outfield players (OFs) were older and leaner than CampP (P < 0.05). Besides, they performed better in velocity, agility, endurance and jump tests (P < 0.05). A discriminant analysis showed that velocity and agility were the most important parameters. Finally, selected OFs were older and displayed better agility and endurance compared to the nonselected OFs (P < 0.05). Goalkeepers (GKs) were taller and heavier and had more body fat than OFs; also, they performed worse in the physical tests (P < 0.05). Finally, selected GKs were older and taller, had a higher predicted height and advanced maturity and performed better in the handgrip (dynamometry) and jump tests (P < 0.05). Thus, the technical staff selected OFs with a particular anthropometry and best performance, particularly agility and endurance, while GKs had a different profile. Moreover, chronological age had an important role in the whole selection process.

  1. Coaches' and Players' Perceptions of Training Dose : Not a Perfect Match

    NARCIS (Netherlands)

    Brink, Michel S.; Frencken, Wouter G. P.; Jordet, Geir; Lemmink, Koen A. P. M.

    The aim of the current study was to investigate and compare coaches' and players' perceptions of training dose for a full competitive season. Methods: Session rating of perceived exertion (RPE), duration, and training load (session RPE x duration) of 33 professional soccer players (height 178.2 +/-

  2. Injuries in Professional Male Soccer Players in the Netherlands: A Prospective Cohort Study

    NARCIS (Netherlands)

    Stubbe, J.H.; Beijsterveldt, A.M. van; Knaap, S. van der; Stege, J.; Verhagen, E.; Mechelen, W. van; Backx, F.J.G.

    2015-01-01

    Context : Injuries are a major adverse event in a soccer player's career. Reducing injury incidence requires a thorough knowledge of the epidemiology of soccer injuries. Objective : To investigate the incidence and characteristics of injuries in the Dutch premier soccer league. Design : Cohort

  3. Symptoms of Common Mental Disorders in Professional Football (Soccer Across Five European Countries

    Directory of Open Access Journals (Sweden)

    Vincent Gouttebarge, Frank J.G. Backx, Haruhito Aoki, Gino M.M.J. Kerkhoffs

    2015-12-01

    Full Text Available Evidence on the prevalence of symptoms related to distress, anxiety/depression or substance abuse/dependence, – typically referred to as symptoms of common mental disorders (CMD – is lacking in European professional football (soccer. The aims of the present study were to investigate the prevalence of symptoms related to CMD (distress, anxiety/depression, sleeping disturbance, adverse alcohol behaviour, and adverse nutrition behaviour in professional footballers from five European countries, and to explore associations of the outcome measures under study with life events and career dissatisfaction. A cross-sectional design was used. Questionnaires were distributed among professional footballers by the national players’ unions in Finland, France, Norway, Spain and Sweden. The highest prevalence of symptoms related to common mental disorders were 18% for distress (Sweden, 43% for anxiety/depression (Norway, 33% for sleeping disturbance (Spain, 17% for adverse alcohol behaviour (Finland, and 74% for adverse nutrition behaviour (Norway. In Finland, France and Sweden, both life events and career dissatisfaction were associated with distress, anxiety/depression, adverse alcohol behaviour, and adverse nutrition behaviour. Results suggest the need for self-awareness in professional football about common mental disorders and a multidisciplinary approach by the medical team.

  4. Two Cases of Rhabdomyolysis After Training With Electromyostimulation by 2 Young Male Professional Soccer Players.

    Science.gov (United States)

    Kästner, Andreas; Braun, Markus; Meyer, Tim

    2015-11-01

    We report 2 cases of enormously elevated creatine kinase (CK) activity after training with electromyostimulation (EMS) by 2 young male professional soccer players. In one of them, a single training session with EMS caused exercise-induced rhabdomyolysis with a maximal CK activity of 240 000 U/L. These cases illustrate that unaccustomed EMS exercise may be harmful and can cause rhabdomyolysis even in highly trained athletes and even after 1 single session. Thus, EMS has to be conducted carefully especially by individuals who are known to frequently show notable increases in CK activity even after modest training stimuli. We suggest that EMS should not be applied as sole training stimulus and should not be conducted by strength training beginners. Furthermore, we recommend controlling plasma CK activity and urine color for beginners with EMS when they report strong muscle ache. Athletes with signs of rhabdomyolysis after EMS should be brought to hospital for monitoring of renal function and possible further treatment.

  5. Analysis of anger expression style--continuous anger and personality types of professional soccer players.

    Science.gov (United States)

    Yildiz, Mustafa; Sahan, Hasan; Tekin, Murat; Ulukan, Mehmet; Mehtap, Bekir

    2011-12-01

    The purpose of this study was to analyse the anger expression styles, the continuous anger and personality types of players who play football in the professional league. The research group consisted of 133 soccer players who are playing in sports teams in the Turkish Super League: Ankara Sport Club, Gençlerbirliği Sports Club and Hacettepe Sports Club in the first league, Turk Telekom sports in the second league, and Keçiören Gücü Sports and Ankarademir Sports playing in the third league in the 2008-2009 football season. The Eysenck personality inventory was modified to Turkish by Bayar in 1983, having been developed by Eysenck and Eysenck in 1975 and the continuous anger-anger style scale (SOTO) was modified to Turkish by Ozer in 1994. The state trait anger scale (STAS) was originally developed by Spielberger in 1983. All these were used on soccer players participating in the study to determine the continuous anger and anger styles in this study. In the interpretation of data, a meaningfulness of p < 0.05, was applied by using regression analysis, the Kruskal Wallis Test, the one-way variance analysis (ANOVA) test and the Tukey test to find the differences among the groups. The SPSS (Statistical Package for Social Sciences) programme was used to find the accounted values and to evaluate the data. According to the results of this study, regarding the education level variable, while there was a meaningful difference between the continuous anger sub-dimension and anger control sub-dimension than continuous anger-anger expression styles, no significant difference was found among personality type sub-dimensions (psychoticism, extrovert, neurotic, false). In addition, a significant relationship was found between psychoticism, extrovert, neurotic, and lie sub-dimensions and the personality type sub-dimensions of professional players' constant anger-anger expression styles.

  6. Group cohesion and coach leadership based on the competitive level of teams in the context of Paraná’s indoor soccer. http://dx.doi.org/10.5007/1980-0037.2013v15n1p89

    Directory of Open Access Journals (Sweden)

    José Roberto Andrade do Nascimento Junior

    2013-01-01

    Full Text Available The objective of the present study was to analyze the level of group cohesion and coach leadership style of five-a-side soccer teams from the state of Paraná. Participants consisted of 122 athletes of four teams competing at the National League and four teams competing at the Paraná State Championship in 2011, as well as eight coaches. The following instruments were used: the Group Environment Questionnaire, the Leadership Scale for Sports, and a semi-structured interview. Data analysis was performed using the Kolmogorov-Smirnov test, Cronbach’s alpha, Mann-Whitney “U” test (p < 0.05, and categorical analysis. The results demonstrated that the State Championship teams showed higher levels of group cohesion when compared to the National League teams; the coaches of the State Championship teams provided more instructions, reinforcement, and social support to athletes, in addition to showing a more democratic style when compared to the National League coaches – these characteristics were also found in the qualitative analysis. We concluded that the performance level (state/national of the five-a-side soccer teams had an influence on the cohesion level and coaches’ leadership style.

  7. Technical and physical determinants of soccer match-play performance in elite youth soccer players.

    Science.gov (United States)

    Rowat, Owain; Fenner, Jonathan; Unnithan, Viswanath

    2017-04-01

    The aim of this study was to evaluate whether physical performance characteristics could be a better predictor than technical skills in determining the technical level of county soccer players in a match situation. With institutional ethics approval, 25 male youth soccer players aged 16-18.5 years from a professional soccer academy in South East Asia were selected and height and body mass were recorded. Players were tested for sexual maturity (pubertal development scale [PDS] self-assessment), aerobic capacity (yo-yo intermittent recovery test level 1 [YYIR1]), repeated sprint ability (7 x 35 m sprints) acceleration (15 m sprint) and four soccer skills tests (dribble with pass, dribbling speed, passing and shooting accuracy). Players' technical ability during match play was assessed in small-sided games of soccer (5 v 5) using a novel game technical scoring chart (scoring chart completed by coaches to assess technical performance in a match situation) developed from criteria (e.g., first touch, dribbling and two footedness) used by youth soccer coaches for talent identification. A Spearman's rank correlation showed the YYIR1 test and 15 m sprint test were limited in predicting technical match performance (r=0.03, P=0.88, r=-0.23, P=0.32 respectively). A Pearson product moment correlation showed that the repeated sprint test was also limited in predicting technical match performance (r=-0.34, P=0.14). A dribbling skill with a pass was found to be the best determinant of a player's technical ability in a match (r=-0.57, P=0.00). Talent identification and selection programs in Asian youth soccer should include a dribbling skill performed with a pass.

  8. 'Just wait then and see what he does': a speech act analysis of healthcare professionals' interaction coaching with parents of children with autism spectrum disorders.

    Science.gov (United States)

    McKnight, Lindsay M; O'Malley-Keighran, Mary-Pat; Carroll, Clare

    2016-11-01

    There is evidence indicating that parent training programmes including interaction coaching of parents of children with autism spectrum disorders (ASD) can increase parental responsiveness, promote language development and social interaction skills in children with ASD. However, there is a lack of research exploring precisely how healthcare professionals use language in interaction coaching. To identify the speech acts of healthcare professionals during individual video-recorded interaction coaching sessions of a Hanen-influenced parent training programme with parents of children with ASD. This retrospective study used speech act analysis. Healthcare professional participants included two speech-language therapists and one occupational therapist. Sixteen videos were transcribed and a speech act analysis was conducted to identify the form and functions of the language used by the healthcare professionals. Descriptive statistics provided frequencies and percentages for the different speech acts used across the 16 videos. Six types of speech acts used by the healthcare professionals during coaching sessions were identified. These speech acts were, in order of frequency: Instructing, Modelling, Suggesting, Commanding, Commending and Affirming. The healthcare professionals were found to tailor their interaction coaching to the learning needs of the parents. A pattern was observed in which more direct speech acts were used in instances where indirect speech acts did not achieve the intended response. The study provides an insight into the nature of interaction coaching provided by healthcare professionals during a parent training programme. It identifies the types of language used during interaction coaching. It also highlights additional important aspects of interaction coaching such as the ability of healthcare professionals to adjust the directness of the coaching in order to achieve the intended parental response to the child's interaction. The findings may be used

  9. Symptoms of Common Mental Disorders in Professional Football (Soccer) Across Five European Countries.

    Science.gov (United States)

    Gouttebarge, Vincent; Backx, Frank J G; Aoki, Haruhito; Kerkhoffs, Gino M M J

    2015-12-01

    Evidence on the prevalence of symptoms related to distress, anxiety/depression or substance abuse/dependence, - typically referred to as symptoms of common mental disorders (CMD) - is lacking in European professional football (soccer). The aims of the present study were to investigate the prevalence of symptoms related to CMD (distress, anxiety/depression, sleeping disturbance, adverse alcohol behaviour, and adverse nutrition behaviour) in professional footballers from five European countries, and to explore associations of the outcome measures under study with life events and career dissatisfaction. A cross-sectional design was used. Questionnaires were distributed among professional footballers by the national players' unions in Finland, France, Norway, Spain and Sweden. The highest prevalence of symptoms related to common mental disorders were 18% for distress (Sweden), 43% for anxiety/depression (Norway), 33% for sleeping disturbance (Spain), 17% for adverse alcohol behaviour (Finland), and 74% for adverse nutrition behaviour (Norway). In Finland, France and Sweden, both life events and career dissatisfaction were associated with distress, anxiety/depression, adverse alcohol behaviour, and adverse nutrition behaviour. Results suggest the need for self-awareness in professional football about common mental disorders and a multidisciplinary approach by the medical team. Key pointsThe highest prevalence of symptoms related to common mental disorders were 18% for distress (Sweden), 43% for anxiety/depression (Norway), 33% for sleeping disturbance (Spain), 17% for adverse alcohol behaviour (Finland), and 74% for adverse nutrition behaviour (Norway).In Finland, France and Sweden, both life events and career dissatisfaction were associated with distress, anxiety/depression, adverse alcohol behaviour, and adverse nutrition behaviour.Our results suggest the need for self-awareness in professional football about common mental disorders and a multidisciplinary approach by

  10. Preseason Maximal Aerobic Power in Professional Soccer Players Among Different Divisions.

    Science.gov (United States)

    Marcos, Michaelides A; Koulla, Parpa M; Anthos, Zacharia I

    2018-02-01

    Marcos, MA, Koulla, PM, and Anthos, ZI. Preseason maximal aerobic power in professional soccer players among different divisions. J Strength Cond Res 32(2): 356-363, 2018-The purpose of this study was to examine and compare the anthropometric, maximal oxygen uptake (V[Combining Dot Above]O2max), and positional differences of first division (D1) professional football players from players of second (D2) and third (D3) divisions in Cyprus football leagues. Four hundred twenty-one professional male football players participated in this study. All subjects underwent anthropometric and body composition evaluation. In addition, they performed an incremental cardiopulmonary exercise testing (CPET) on a treadmill for V[Combining Dot Above]O2max evaluation. The results were analyzed using 1-way analysis of variance, between subjects design revealing significant effects among the divisions. Tukey's honest significant difference (HSD) tests demonstrated that players from D1 scored significantly higher on V[Combining Dot Above]O2max and lasted significantly longer on the treadmill than participants of D2 and D3 (p ≤ 0.05). Similar findings were demonstrated when D2 was contrasted against D3 players. Goalkeepers, defenders, and forwards demonstrated significantly higher anthropometric measurements, whereas wingers and midfielders demonstrated significantly higher V[Combining Dot Above]O2max (p ≤ 0.05) than goalkeepers and defenders. The findings of this study clearly demonstrated that cardiovascular fitness, as determined by CPET, is an important fitness parameter that differentiates professional football players who play at a more advanced level. This could be attributed to the different seasonal schedules that allow for longer transition time for lower division players and thus favoring greater detraining effects. Emphasis should be given by fitness professionals on transition period training to minimize the detraining effects especially in lower divisions.

  11. Tensiomyography of selected lower-limb muscles in professional soccer players.

    Science.gov (United States)

    Rey, Ezequiel; Lago-Peñas, Carlos; Lago-Ballesteros, Joaquín

    2012-12-01

    Tensiomyography is a non-invasive method of neuromuscular assessment used to measure muscle action characteristics, muscle tone, and muscle fiber type, and provides information on acute and chronic responses of muscle to different training loads. The aims of the present study were: to analyse differences in muscle response and mechanical characteristics of two major muscles of the lower extremity in a large group of Spanish soccer players according to playing position, and to provide group norms against which clinical findings may be compared. Data were collected from 78 professional soccer players (age 26.6 ± 4.4 years; height: 179.2 ± 5.3 cm; body mass: 75.8 ± 5.3 kg). Tensiomyography was recorded from the rectus femoris (RF) and biceps femoris (BF) muscles after 2 days without take part in any strenuous exercise or training. Five tensiomyographic parameters were analyzed: maximal displacement (D(m)), contraction time (T(c)), sustain time (T(s)), delay time (T(d)), and half-relaxation time (T(r)). A good to excellent intra-session reliability was found for all contractile parameters (ICC ranged from 0.78 to 0.95). No significant differences between players of any position were observed in absolute values of BF. However, significant differences were observed for T(c), T(r) and T(s) between the different playing positions on RF (P muscles with ability to rapidly generate force during contractions. The neuromuscular profile provided could help in identifying the normative data that are important for the different positions in order to optimize the training and recovery process of each individual player. Copyright © 2012 Elsevier Ltd. All rights reserved.

  12. REPEATED SPRINT ABILITY IN PROFESSIONAL SOCCER vs. PROFESSIONAL FUTSAL PLAYERS [Capacidad de realizar esprints repetidos en jugadores profesionales de fútbol vs. Fútbol sala

    Directory of Open Access Journals (Sweden)

    V. Cuadrado-Peñafiel

    2014-10-01

    Full Text Available Purpose: To investigate the changes through repeated explosive effort sequences (20+20-m sprint with change of direction, jumping, metabolic response (lactate, as well as the relationship between these variables and fitness qualities (strength and endurance in professional futsal and soccer players. Methods: Male players (n =30, Twelve futsal and twenty soccer players completed three testing sessions. In the first session was measured VO2max on a motorized treadmill. In the second session was measured counter movement jump (CMJ and full squat RM in Smith Machine. Finally, in the third session six repeated-explosive effort sequences (RES was performed. Results: Similar values of lower limbs strength, CMJ height, LAC after RSA test and VO2max (95,12 vs. 94,73; 34,5 vs. 35,9; 13,65 vs. 14,33; 62,78 vs. 62,95 soccer vs. futsal respectively and significant differences when are analysed the loss of performance in velocity (total and between three first and three last and vertical jump height (2,67 vs. 4,4**; 1,28 vs. 2,1*; 2,88 vs. 6,1**; 9,71 vs. 14,3* soccer vs. futsal respectively. Conclusions: Professional futsal and soccer obtain significant differences in speed and vertical jump height (CMJ loss despite having similar values in squat, oxygen consumption, lactate after RSA test and CMJ height. Issue that could be attributed to the characteristics of the sport. This suggests that the volume should be increased oriented ability to perform repeated sprint actions over other type of training aimed at improving aerobic capacity especially at professional level.

  13. Coaching for ADHD

    Science.gov (United States)

    Murphy, Kevin; Ratey, Nancy; Maynard, Sandy; Sussman, Susan; Wright, Sarah D.

    2010-01-01

    Despite limited scientific study on ADHD coaching as an intervention for adults with ADHD, the field of ADHD coaching has grown significantly and gained popularity in recent years. ADHD coaching is becoming a bona fide profession where one must advance through a rigorous training process, in order to be certified as a professional ADHD coach.…

  14. Considering Student Coaching

    Science.gov (United States)

    Keen, James P.

    2014-01-01

    What does student coaching involve and what considerations make sense in deciding to engage an outside contractor to provide personal coaching? The author explores coaching in light of his own professional experience and uses this reflection as a platform from which to consider the pros and cons of student coaching when deciding whether to choose…

  15. Does Coaching Student Teachers Affect the Professional Development and Teaching of Cooperating Teachers? A Cross-Cultural Perspective.

    Science.gov (United States)

    Ariav, Tamar; Clinard, Linda McCorkel

    This study examined the perceptions of cooperating teachers who are coaching student teachers within Professional Development School (PDS) models in two cultures. Part of an action research project conducted by the University of California-Irvine (UCI) and Beit Berl College (Israel), the study examined: (1) what contributions the cooperating…

  16. The Foci of In-Action Professional Judgement and Decision-Making in High-Level Adventure Sports Coaching Practice

    Science.gov (United States)

    Collins, Loel; Collins, Dave

    2017-01-01

    This article continues a theme of previous investigations by the authors and examines the focus of in-action reflection as a component of professional judgement and decision-making (PJDM) processes in high-level adventure sports coaching. We utilised a thematic analysis approach to investigate the decision-making practices of a sample of…

  17. Peer Coaching as an Institutionalised Tool for Professional Development: The Perceptions of Tutors in a Nigerian College

    Science.gov (United States)

    Aderibigbe, Semiyu Adejare; Ajasa, Folorunso Adekemi

    2013-01-01

    Purpose: The purpose of this paper is to explore the perceptions of college tutors on peer coaching as a tool for professional development to determine its formal institutionalisation. Design/methodology/approach: A survey questionnaire was used for data collection, while analysis of data was done using descriptive statistics. Findings: The…

  18. An Examination of Coach and Player Relationships According to the Adapted LMX 7 Scale: A Validity and Reliability Study

    Science.gov (United States)

    Caliskan, Gokhan

    2015-01-01

    The current study aims to test the reliability and validity of the Leader-Member Exchange (LMX 7) scale with regard to coach--player relationships in sports settings. A total of 330 professional soccer players from the Turkish Super League as well as from the First and Second Leagues participated in this study. Factor analyses were performed to…

  19. Análise do perfil de liderança dos treinadores das categorias de base do futebol brasileiro Analysis of the leadership profile of soccer coaches of Brazilian youth teams

    Directory of Open Access Journals (Sweden)

    Israel Teoldo da Costa

    2009-09-01

    Full Text Available Este estudo tem o objetivo de analisar o perfil de liderança dos treinadores das categorias de base do futebol brasileiro. Para a coleta de dados, utilizou-se um questionário de identificação da amostra e a Escala de Liderança Revisada para o Esporte (ELRE, versão auto-percepção. Participaram deste estudo 109 treinadores com média de idade de 38,64 anos (± 10,33 e uma média de tempo de envolvimento na função de treinador igual a 7,05 anos (± 6,01. Os treinadores entrevistados advinham de quatro categorias: sub-20 (33 treinadores, sub-17 (28 treinadores, sub-15 (25 treinadores e sub-13 (23 treinadores. A análise estatística foi realizada no SPSS versão 11.0. Os resultados mostraram que os treinadores se auto-percebem como sendo mais autocráticos e voltados para os aspectos de treino-instrução de suas equipes. Constatou-se que não houve diferença entre as percepções dos treinadores que trabalham nas quatro categorias de base coletadas. Em relação à forma de trabalho desses treinadores em suas equipes conclui-se que eles são autocráticos e mostram uma preocupação com a conduta educativa e de instrução, denotando preocupação com a melhoria do desempenho técnico, tático e motivacional das equipes. Conclui-se também, que os profissionais entrevistados mostram perfis de liderança semelhantes independentemente da categoria na qual eles estão trabalhando no momento.This study aimed to identify the factors derived from the real leadership style of soccer coaches. This study used a questionnaire to characterize the sample and the Revised Leadership Scale for Sport, real profile version, as instruments for data collection. One hundred and nine soccer coaches of youth teams participated of this research. They presented an average age of 38.64 years (± 10.33 and a direct involvement with coaching of 7.05 years (± 6.01. The interviewees were coaches of four age groups: under 20's (33 coaches, under 17's (28 coaches

  20. SEASON-TO-SEASON VARIATIONS OF PHYSIOLOGICAL FITNESS WITHIN A SQUAD OF PROFESSIONAL MALE SOCCER PLAYERS

    Directory of Open Access Journals (Sweden)

    Niall A. Clark

    2008-03-01

    Full Text Available The purpose of this study was to examine season-to-season variations in physiological fitness parameters among a 1st team squad of professional adult male soccer players for the confirmatory purposes of identifying normative responses (immediately prior to pre-season training (PPS, mid-season (MID, and end-of-season (EOS. Test-retest data were collected from a student population on the primary dependent variables of anaerobic threshold (AT and maximal aerobic power (VO2 max to define meaningful measurement change in excess of test-retest technical error between test-to-test performances. Participants from a pool of 42 professional soccer players were tested over a set sequence of tests during the 3-year period: 1 basic anthropometry, 2 countermovement jump (CMJ tests 3 a combined AT and VO2 max test. Over the 3-year period there were no test-to-test changes in mean VO2 max performance exceeding pre-defined limits of test agreement (mean of eight measures: 61.6 ± 0.6 ml·kg-1·min-1. In contrast, VO2 at AT was significantly higher at the MID test occasion in seasons 2 (+4.8%; p = 0.04, p < 0.05 and 3 (+6.8%; p = 0.03, p < 0.05. The CMJ tests showed a test-to-test improvement of 6.3% (best of 3 jumps (p = 0.03, p < 0.05 and 10.3% (20-s sustained jumping test (p = 0.007, p < 0.01 between PPS2 and MID2 and thereafter remained stable. Anthropometrics were unaffected. In summary, despite some personnel changes in the elite cohort between test-to-test occasions, VO2 max values did not vary significantly over the study which supports previous short-term observations suggesting a general 'elite' threshold of 60 ml·kg-1 min. Interestingly, AT significantly varied where VO2 max was stable and these variations also coincided with on- and off-seasons suggesting that AT is a better indication of acute training state than VO2 max.

  1. Head Injuries in Soccer.

    Science.gov (United States)

    Myrick, Karen M

    2016-07-01

    Soccer is currently the most popular and fastest growing sport worldwide, with approximately 265 million registered soccer players existing around the world. The popularity of the sport, coupled with the high incidence of 18.8-21.5 head injuries per 1,000 player hours reported, make it essential that clinicians, coaches, and the athletes, have a solid understanding of head injuries. The successful rehabilitation of athletes with head injuries relies upon early and accurate identification strategies and implementation of appropriate return to play measures across all areas in the continuum of care. Soccer is a frequently played sport, and head injuries are common. Therefore, it is imperative that clinicians, coaches, and the athletes themselves have a solid understanding of head injury prevention, diagnosis, and treatment options. The purpose of this article was to provide rehabilitation nurses with current information regarding frequently occurring head injuries in the widespread sport of soccer. © 2015 Association of Rehabilitation Nurses.

  2. Mechanisms and situations of anterior cruciate ligament injuries in professional male soccer players: a YouTube-based video analysis.

    Science.gov (United States)

    Grassi, Alberto; Smiley, Stephen Paul; Roberti di Sarsina, Tommaso; Signorelli, Cecilia; Marcheggiani Muccioli, Giulio Maria; Bondi, Alice; Romagnoli, Matteo; Agostini, Alessandra; Zaffagnini, Stefano

    2017-01-25

    Soccer is considered the most popular sport in the world concerning both audience and athlete participation, and the incidence of ACL injury in this sport is high. The understanding of injury situations and mechanisms could be useful as substratum for preventive actions. To conduct a video analysis evaluating the situations and mechanisms of ACL injury in a homogeneous population of professional male soccer players, through a search entirely performed on the YouTube.com Web site focusing on the most recent years. A video analysis was conducted obtaining videos of ACL injury in professional male soccer players from the Web site YouTube. Details regarding injured players, events and situations were obtained. The mechanism of injury was defined on the basis of the action, duel type, contact or non-contact injury, and on the hip, knee and foot position. Thirty-four videos were analyzed, mostly from the 2014-2015 season. Injuries occurred mostly in the first 9 min of the match (26%), in the penalty area (32%) or near the side-lines (44%), and in non-rainy conditions (97%). Non-contact injuries occurred in 44% of cases, while indirect injuries occurred in 65%, mostly during pressing, dribbling or tackling. The most recurrent mechanism was with an abducted and flexed hip, with knee at first degrees of flexion and under valgus stress. Through a YouTube-based video analysis, it was possible to delineate recurrent temporal, spatial and mechanical characteristics of ACL injury in male professional soccer players. Level IV, case series.

  3. Daily Distribution of Macronutrient Intakes of Professional Soccer Players From the English Premier League.

    Science.gov (United States)

    Anderson, Liam; Naughton, Robert J; Close, Graeme L; Di Michele, Rocco; Morgans, Ryland; Drust, Barry; Morton, James P

    2017-06-28

    The daily distribution of macronutrient intake can modulate aspects of training adaptations, performance and recovery. We therefore assessed the daily distribution of macronutrient intake (as assessed using food diaries supported by the remote food photographic method and 24 h recalls) of professional soccer players (n=6) of the English Premier League during a 7-day period consisting of two match days and five training days. On match days, average carbohydrate (CHO) content of the pre-match (0.05) though such intakes were lower than contemporary guidelines considered optimal for pre-match CHO intake and post-match recovery. On training days, we observed a skewed and hierarchical approach (Plunch (0.6 g.kg(-1))>breakfast (0.3 g.kg(-1))>evening snacks (0.1 g.kg(-1)). We conclude players may benefit from consuming greater amounts of CHO in both the pre-match and post-match meals so as to increase CHO availability and maximize rates of muscle glycogen re-synthesis, respectively. Furthermore, attention should also be given to ensuring even daily distribution of protein intake so as to potentially promote components of training adaptation.

  4. GAME LOCATION AND TEAM QUALITY EFFECTS ON PERFORMANCE PROFILES IN PROFESSIONAL SOCCER

    Directory of Open Access Journals (Sweden)

    Carlos Lago-Peñas

    2011-09-01

    Full Text Available Home advantage in team sports has an important role in determining the outcome of a game. The aim of the present study was to identify the soccer game- related statistics that best discriminate home and visiting teams according to the team quality. The sample included all 380 games of the Spanish professional men's league. The independent variables were game location (home or away and the team quality. Teams were classified into four groups according to their final ranking at the end of the league. The game-related statistics registered were divided into three groups: (i variables related to goals scored; (ii variables related to offense and (iii variables related to defense. A univariate (t-test and Mann-Whitney U and multivariate (discriminant analysis analysis of data was done. Results showed that home teams have significantly higher means for goal scored, total shots, shots on goal, attacking moves, box moves, crosses, offsides committed, assists, passes made, successful passes, dribbles made, successful dribbles, ball possession, and gains of possession, while visiting teams presented higher means for losses of possession and yellow cards. In addition, the findings of the current study confirm that game location and team quality are important in determining technical and tactical performances in matches. Teams described as superior and those described as inferior did not experience the same home advantage. Future research should consider the influence of other confounding variables such as weather conditions, game status and team form

  5. Relationships between repeated sprint ability, mechanical parameters, and blood metabolites in professional soccer players.

    Science.gov (United States)

    Morcillo, Jose A; Jiménez-Reyes, Pedro; Cuadrado-Peñafiel, Victor; Lozano, Emilio; Ortega-Becerra, Manuel; Párraga, Juan

    2015-06-01

    This study analyzed the acute metabolic and mechanical responses to a specific repeated sprint ability (RSA) test. Eighteen male professional soccer players from a team of the First Division of Spanish National League participated. A 12 × 30-m RSA test with 30-second recovery together with countermovement jump test (CMJ) pre a post RSA test was performed. Mechanical responses (i.e., height performance in CMJ and speed loss) and metabolic responses (i.e., blood lactate and ammonia concentrations) were measured before and after exercise. A related sample t-test was used to analyze CMJ height pre-post changes as well as to compare pre- and post-exercise lactate and ammonia levels. Countermovement jump height loss pre-post session (8%) was significant, and fatigue, measured as CMJ height loss, was strongly correlated to lactate (r = 0.97; p < 0.001) and ammonia (r = 0.92; p < 0.001) for all players. The relationships between the variables studied were determined by calculating the Pearson correlation coefficients. The metabolic stress developed during the effort can be estimated by controlling CMJ because of the high correlation between CMJ and blood lactate and ammonia concentrations. The high correlations found between mechanical (speed and CMJ height losses) and metabolic (lactate and ammonia) measures of fatigue highlight the utility and validity of using CMJ to monitor training load and quantify objectively neuromuscular fatigue during RSA.

  6. The spanish professional soccer foundations. (Las fundaciones clubes de futbol profesionales en España.

    Directory of Open Access Journals (Sweden)

    Qing Chen

    2013-01-01

    Full Text Available AbstractSports foundations aiming at promoting sports activities partly outline the nonprofit area with specific concern. This study attempts to know the functions, general interests of professional soccer foundations in Spain, to describe their main characteristics and to ascertain if there are significant differences among them, according to their descriptive features. A document survey and analysis was carried out, with an assistance of own establishment of documental database. The findings not only indicate a significant difference between the classification of Spanish soccer foundations and their antiquities, but also manifest the tendency of the existence of physical person in members of founders with regard to its antiquity. The results of the present work implied that there were great dissimilarities of the elaboration of regulations depending on different regions in Spain.ResumenDentro del sector asociativo, las fundaciones deportivas tienen el propósito específico de desarrollar actividades de promoción deportiva. Este estudio intentó conocer las funciones, e intereses generales, de las fundaciones del fútbol profesional en España, describiendo sus principales características y comprobando si existían diferencias significativas entre ellos. Se utilizó el análisis documental y se realizó una base de datos documental. Los resultados indicaron que existía una diferencia significativa entre los diferentes tipos de clasificación de una fundación del fútbol profesional en España en función de la antigüedad de dicha fundación. También se manifestó una tendencia de la existencia de personas físicas o no, dentro del tipo de fundadores, en función de la antigüedad de la organización. La presente investigación pone de manifiesto la gran variedad en las legislaciones dependiendo de la comunidad autónoma de origen.http://dx.doi.org/10.5232/ricyde2013.03106

  7. E-Coaching, E-Mentoring for Lifelong Professional Development of Teachers within the System of Post-Graduate Pedagogical Education

    Science.gov (United States)

    Kovalchuck, Vasyl; Vorotnykova, Iryna

    2017-01-01

    The research considers the readiness of teachers and postgraduate pedagogical educational establishments to use e-coaching and e-mentoring which can provide continuous professional development of teachers. The use of theoretical methods of systematization and comparison of scientific statements, experience in implementing e-coaching, e-mentoring…

  8. Examining Factors Influencing the Participation and Self-Management of U.S. Collegiate Women's Rowing Coaches in Professional Development Experiences

    Science.gov (United States)

    Lopez, Sara Lynn

    2012-01-01

    This study examines the factors that influence the participation and self-management of U.S. intercollegiate athletic coaches in professional development experiences. The qualitative study is guided by theoretical considerations about self-directed adult learning as well as emerging concepts regarding the preparation of coaches for an increasingly…

  9. The education coaching concept

    Directory of Open Access Journals (Sweden)

    Borova T.A.

    2011-12-01

    Full Text Available The article deals with education coaching concept in the context of higher education. The main coaching and concept definitions are analyzed. The education coaching definition is given. The main ideas, principles and methodology approaches to the education coaching concept are identified and characterized. It is grounded the methodological approaches that are the basis of the educational coaching concept. The main points of education coaching are summarizes. The aim of education coaching is defined as professional self-development university teachers' staff and their self-realization.

  10. Athletes' Evaluations of Their Head Coach's Coaching Competency

    Science.gov (United States)

    Myers, Nicholas D.; Feltz, Deborah L.; Maier, Kimberly S.; Wolfe, Edward W.; Reckase, Mark D.

    2006-01-01

    This study provided initial validity evidence for multidimensional measures of coaching competency derived from the Coaching Competency Scale (CCS). Data were collected from intercollegiate men's (n = 8) and women's (n = 13) soccer and women's ice hockey teams (n = 11). The total number of athletes was 585. Within teams, a multidimensional…

  11. E-Coaching, E-Mentoring for Lifelong Professional Development of Teachers within the System of Post-Graduate Pedagogical Education

    Directory of Open Access Journals (Sweden)

    Vasyl KOVALCHUCK

    2017-07-01

    Full Text Available The research considers the readiness of teachers and postgraduate pedagogical educational establishments to use e-coaching and e-mentoring which can provide continuous professional development of teachers. The use of theoretical methods of systematization and comparison of scientific statements, experience in implementing e-coaching, e-mentoring has identified the possibility of using e-coaching and e-mentoring in postgraduate pedagogical education in continuous professional development of teachers. Monitoring and questioning have proved the idea that teachers require the new content of postgraduate education for their own professional development. They are interested in mastering new technologies, delivering master-classes and demonstration lessons. The results of the discussion in focus groups including representatives of the administration of educational establishments, teachers and lecturers of postgraduate pedagogical educational establishments are shown in the SWOT-analysis. The experts confirmed the need and possibility of the e-coaching and e-mentoring implementation in postgraduate pedagogical education. The major risks of e-coaching and e-mentoring implementation in postgraduate pedagogical education are e-coaches’ and e-mentors’ training and ICT competence. The Internet services, e-coaching and e-mentoring applications and programs are able to provide continuous professional development of teachers. The educational and professional e-coaching and e-mentoring programs require further studying in postgraduate pedagogical education.

  12. E-Coaching, E-Mentoring for Lifelong Professional Development of Teachers within the System of Post-Graduate Pedagogical Education

    National Research Council Canada - National Science Library

    Vasyl KOVALCHUCK; Iryna VOROTNYKOVA

    2017-01-01

    The research considers the readiness of teachers and postgraduate pedagogical educational establishments to use e-coaching and e-mentoring which can provide continuous professional development of teachers...

  13. Intensity of training sessions among professional indoor soccer players: a case study

    Directory of Open Access Journals (Sweden)

    Francimara Budal Arins

    2007-09-01

    Full Text Available > This study aimed to characterize physiological responses of indoor soccer (futsal professional players to training sessions, according to playing position. The sample was composed by five players ( X =23.9±3.0 yrs of an adult professional futsal team from Florianópolis, SC, Brazil. The athletes performed a maximal exercise test for measuring oxygen consumption, heart rate (HR and respiratory quotient (RQ, variables used to create regression equations for energy expenditure (EE, kcal prediction and to estimate relative work intensity (% max HR. During the sessions, HR was measured with a S610i Polar® monitor. The results showed that the goalkeeper played at 60% to 70% max HR. The mid-fi elders and the attacker worked at more intense levels (81% to 100%, while the defender varied the intensity at intermediate exercise range (71% to 90%. Total EE was similar among mid-fi elders and attacker ( X =339.5 kcal, while the defender presented lower values ( X =255.0 kcal. The goalkeeper had the lowest EE ( X =106.9 kcal. The results agreed with those reported in soccer studies and facilitate planning and control of an individualized training program according to playing position. ABSTRACT Este estudo objetivou caracterizar as respostas fi siológicas de atletas profissionais de futsal durante o treinamento coletivo, de acordo com a posição tática desempenhada. A amostra foi composta pelos cinco jogadores titulares ( X =23,9±3,0 anos de uma equipe de futsal masculino profi ssional adulto da cidade de Florianópolis, SC. Os atletas foram avaliados por um teste ergoespirométrico máximo, que forneceu o consumo de oxigênio, a freqüência cardíaca (FC e o quociente respiratório (RQ, valores utilizados para gerar equações de regressão para estimativa do gasto calórico (GCal e da intensidade do trabalho (expressa em % FC máxima predita pela idade (% FC máx. Durante os coletivos, a FC foi mensurada com um monitor Polar modelo S610i®. Os

  14. Seasonal Training Load and Wellness Monitoring in a Professional Soccer Goalkeeper.

    Science.gov (United States)

    Malone, James J; Jaspers, Arne; Helsen, Werner F; Merks, Brenda; Frencken, Wouter Gp; Brink, Michel S

    2017-11-28

    The purpose of this investigation was to: (a) quantify the training load practices of a professional soccer GK, and (b) investigate the relationship between the training load observed and the subsequent self-reported wellness response. One male goalkeeper playing for a team in the top league of the Netherlands participated in this case study. Training load data were collected across a full season using a global positioning system (GPS) device and session rating of perceived exertion (session-RPE). Data was assessed in relation to the number of days to a match (MD- and MD+). In addition, self-reported wellness was assessed using a questionnaire. Duration, total distance, average speed, PlayerLoad TM and load (derived from session-RPE) were highest on MD. The lowest values for duration, total distance and PlayerLoad TM were observed on MD-1 and MD+1. Total wellness scores were highest on MD and MD-3 and were lowest on MD+1 and MD-4. Small to moderate correlations between training load measures (duration, total distance covered, high deceleration efforts and load) and the self-reported wellness scores were found. This exploratory case-study provides novel data about the physical load undertaken by a goalkeeper during one competitive season. The data suggest there are small to moderate relationships between training load indicators and self-reported wellness. This weak relation indicates that the association is not meaningful. This may be due to the lack of position-specific training load parameters we can currently measure in the applied context.

  15. Relationship Between Internal Load Indicators and Changes on Intermittent Performance After the Preseason in Professional Soccer Players.

    Science.gov (United States)

    Campos-Vazquez, Miguel A; Toscano-Bendala, Francisco J; Mora-Ferrera, José C; Suarez-Arrones, Luis J

    2017-06-01

    The aim of this study was to examine the effects of accumulated internal training load (ITL) during the preseason (4 weeks) on changes in the intermittent performance, in a professional soccer team. Twelve professionals soccer players (Mean ± SD age: 27.7 ± 4.3 years; height: 177.1 ± 6.2 cm; body mass: 73.1 ± 5.2 kg; % body fat [Faulkner]: 10.2 ± 1.2) belonging to a Spanish second division team (2013-2014) participated in this study. The 30-15 intermittent fitness test was performed before and after the preseason, and the speed for the last period completed by each player was recorded (VIFT). During the preseason, the team alternated practice of training sessions (TRNs) with friendly matches (FMs). Session rating of perceived exertion (sRPE), heart rate (HR), and HR reserve were analyzed every TRN and FM to calculate ITL (ITL: sRPE-TL, Edward's-TL and Edward's-TLres). The players' VIFT substantially increased after the preseason period (20.1 ± 0.8 vs. 21.1 ± 0.8 km·h; effect size [ES] = 1.15 ± 0.25; almost certainly). The average value of sRPE throughout FMs was substantially greater than the value of the TRNs (7.4 ± 0.9 vs. 5.25 ± 0.2; ES = 2.31 ± 2.45; almost certainly). sRPE-TL, practice volume, and sum of RPE during the preseason were positively and largely correlated (r = 0.70-0.75) with changes on intermittent performance. No relationships were found between HR-derived measures of exercise load and changes on intermittent fitness. The present results suggest that practice volume and subjective measures of TL, related better than HR-based TL methods to changes on intermittent performance after the preseason, in professional soccer players.

  16. LACTATE AND VENTILATORY THRESHOLDS REFLECT THE TRAINING STATUS OF PROFESSIONAL SOCCER PLAYERS WHERE MAXIMUM AEROBIC POWER IS UNCHANGED

    Directory of Open Access Journals (Sweden)

    N Clark

    2003-03-01

    Full Text Available The aim of this study was to investigate maximum aerobic power (VO2 max and anaerobic threshold (AT as determinants of training status among professional soccer players. Twelve professional 1st team British male soccer players (age: 26.2 ± 3.3 years, height: 1.77 ± 0.05 m, body mass: 79.3 ± 9.4 kg agreed to participate in the study and provided informed consent. All subjects completed a combined test of anaerobic threshold (AT and maximum aerobic power on two occasions: Test 1 following 5 weeks of low level activity at the end of the off-season and Test 2 immediately following conclusion of the competitive season. AT was assessed as both lactate threshold (LT and ventilatory threshold (VT. There was no change in VO2 max between Test 1 and Test 2 (63.3 ± 5.8 ml·kg-1·min-1 vs. 62.1 ± 4.9 ml·kg-1·min-1 respectively, however, the duration of exercise tolerance (ET at VO2 max was significantly extended from Test 1 to Test 2 (204 ± 54 vs. 228 ± 68 s respectively (P<0.01. LT oxygen consumption was significantly improved in Test 2 versus Test 1 (P<0.01 VT was also improved (P<0.05. There was no significant difference in VO2 (ml·kg-1·min-1 corresponding to LT and VT. The results of this study show that VO2 max is a less sensitive indicator to changes in training status in professional soccer players than either LT or VT.

  17. Dietary Intake, Body Composition, and Nutrition Knowledge of Australian Football and Soccer Players: Implications for Sports Nutrition Professionals in Practice.

    Science.gov (United States)

    Devlin, Brooke L; Leveritt, Michael D; Kingsley, Michael; Belski, Regina

    2017-04-01

    Sports nutrition professionals aim to influence nutrition knowledge, dietary intake and body composition to improve athletic performance. Understanding the interrelationships between these factors and how they vary across sports has the potential to facilitate better-informed and targeted sports nutrition practice. This observational study assessed body composition (DXA), dietary intake (multiple-pass 24-hr recall) and nutrition knowledge (two previously validated tools) of elite and subelite male players involved in two team-based sports; Australian football (AF) and soccer. Differences in, and relationships between, nutrition knowledge, dietary intake and body composition between elite AF, subelite AF and elite soccer players were assessed. A total of 66 (23 ± 4 years, 82.0 ± 9.2 kg, 184.7 ± 7.7 cm) players participated. Areas of weaknesses in nutrition knowledge are evident (57% mean score obtained) yet nutrition knowledge was not different between elite and subelite AF and soccer players (58%, 57% and 56%, respectively, p > .05). Dietary intake was not consistent with recommendations in some areas; carbohydrate intake was lower (4.6 ± 1.5 g/kg/day, 4.5 ± 1.2 g/kg/day and 2.9 ± 1.1 g/kg/day for elite and subelite AF and elite soccer players, respectively) and protein intake was higher (3.4 ± 1.1 g/kg/day, 2.1 ± 0.7 g/kg/day and 1.9 ± 0.5 g/kg/day for elite and subelite AF and elite soccer players, respectively) than recommendations. Nutrition knowledge was positively correlated with fat-free soft tissue mass (n = 66; r2 = .051, p = .039). This insight into known modifiable factors may assist sports nutrition professionals to be more specific and targeted in their approach to supporting players to achieve enhanced performance.

  18. Comparison of Home Advantage in College and Professional Team Sports in the United States.

    Science.gov (United States)

    Pollard, Richard; Gómez, Miguel A

    2015-09-01

    Home advantage in seven American college team sports (baseball, basketball, football, hockey, lacrosse, soccer and women's basketball) was compared with professional leagues in the United States for the same sports and for the same time period. A total of 81,063 college games and 22,477 professional games were analyzed for the four seasons 2006-07 to 2009-10. There was a significant home advantage, as measured by home winning percentage, in all sports, both college and professional. The overall home advantage in college sports was significantly greater than in professional sports (ppsychological factors. However, the influence of travel fatigue was inconclusive. Only for soccer was the home advantage greater for professionals. This was the only sport where crowd size appeared to be having an effect. In addition the rules of college soccer allow more substitution and hence greater coach intervention than in professional soccer, a factor that could also be reducing home advantage.

  19. Shared Vulnerability in Professional Learning: Growing Instructional Coaches in a Culture of PDS Partnership

    Science.gov (United States)

    Corkery, Jill; Hall, Kris; Jeffries, Jess; Laskowski, Kristen; Romig, Gail; Tranell, Jennifer; Peters, Brian; Whitney, Anne Elrod

    2015-01-01

    In a school district context where a well-developed district-wide PDS partnership had been in operation for more than 15 years, a team of instructional coaches was formed of district teachers who left their classrooms for two to four years under the leadership of a curriculum coordinator. In this article, members of the coaching team offer…

  20. A psychometric evaluation of the Group Environment Questionnaire in a sample of professional basketball and soccer players.

    Science.gov (United States)

    Steca, P; Pala, A Norcini; Greco, A; Monzani, D; D'Addario, M

    2013-02-01

    Psychometric properties of the Group Environment Questionnaire were investigated in a large sample of soccer (n = 222) and professional basketball players (n = 375). Confirmatory factor analysis was performed both on the total sample and on the two subsamples through a multi-group approach; associations between cohesion and the duration of belonging to the team were also explored. Results confirmed the four-factor structure proposed by Carron's original model even though some items with low loadings were eliminated. No significant associations were found between team cohesion and the duration of belonging to the team.

  1. Coaching Strategies for Helping Adolescent Athletes Cope with Stress

    Science.gov (United States)

    Gilbert, Jenelle N.; Gilbert, Wade; Morawski, Cynthia

    2007-01-01

    This article discusses the various sources of athlete stress and the strategies that coaches can use to help young athletes cope with it. The information is based on a study with a competitive adolescent soccer team and its two coaches, and a review of the coaching and sport psychology literature. The suggested coaching strategies can help to…

  2. RAPID HAMSTRINGS/QUADRICEPS STRENGTH CAPACITY IN PROFESSIONAL SOCCER PLAYERS WITH DIFFERENT CONVENTIONAL ISOKINETIC MUSCLE STRENGTH RATIOS

    Directory of Open Access Journals (Sweden)

    Camila C. Greco

    2012-09-01

    Full Text Available Muscle strength imbalance can be an important factor in hamstrings muscle strain. A hamstrings/quadriceps (H/Q strength ratio based on concentric peak torque values (Hcon:Qcon has traditionally been used to describe the potential for knee-joint destabilization. Because certain standard actions in soccer are explosive, the analysis of the H/Q strength ratio based on the rate of torque development (Hrtd:Qrtd might also be useful in the evaluation of joint stability. The objective of this study was to compare the Hrtd:Qrtd between professional soccer players with heterogeneous values of Hcon:Qcon. Thirty-nine professional soccer players took part in the following procedures on different days: 1 Familiarization session with the isokinetic dynamometer, and 2 Two maximal isometric actions and five maximal concentric actions at 60°·s-1 for hamstrings (H and quadriceps (Q. Participants were ranked according to their Hcon:Qcon ratio. The median third was excluded to form a high torque group (HTG, and a low torque group (LTG. Peak isometric (H and concentric (H and Q torques and rate of torque development (H were significantly greater in the HTG group. Similarly, Hcon:Qcon (0.68 ± 0.02 vs. 0.52 ± 0.03 and Hrtd:Qrtd (0.54 ± 0.12 vs. 0.43 ± 0.16 were significantly greater in the HTG group than in the LTG group. There was no significant correlation between Hcon:Qcon and Hrtd:Qrtd. It can be concluded that Hcon:Qcon and Hrtd:Qrtd are determined, but not fully defined, by shared putative physiological mechanisms. Thus, the physiologic and clinical significance of Hcon:Qcon and Hrtd:Qrtd to an athlete's individual evaluation might be different

  3. Third generation coaching

    DEFF Research Database (Denmark)

    Stelter, Reinhard

    2014-01-01

    . It is the author’s ambition to elevate coaching and coaching psychology to a new professional level with a new agenda. The term “third generation coaching” may be understood as a sort of manifesto – not in a normative sense but as an invitation to reconsider the main objective of coaching in late- or post...

  4. Leadership Coaching That Transforms

    Science.gov (United States)

    Aguilar, Elena

    2017-01-01

    Leading a school can be a lonely, challenging job, Elena Aguilar has found in her years coaching principals. Aguilar describes how coaching approach she's developed--transformational coaching--helps principals get three things most of them need: a neutral person they can talk with confidentially, job-embedded professional development, and a safe…

  5. Relationships Between the External and Internal Training Load in Professional Soccer: What Can We Learn From Machine Learning?

    Science.gov (United States)

    Jaspers, Arne; Beéck, Tim Op De; Brink, Michel S; Frencken, Wouter G P; Staes, Filip; Davis, Jesse J; Helsen, Werner F

    2017-12-28

    Machine learning may contribute to understanding the relationship between the external load and internal load in professional soccer. Therefore, the relationship between external load indicators and the rating of perceived exertion (RPE) was examined using machine learning techniques on a group and individual level. Training data were collected from 38 professional soccer players over two seasons. The external load was measured using global positioning system technology and accelerometry. The internal load was obtained using the RPE. Predictive models were constructed using two machine learning techniques, artificial neural networks (ANNs) and least absolute shrinkage and selection operator (LASSO), and one naive baseline method. The predictions were based on a large set of external load indicators. Using each technique, one group model involving all players and one individual model for each player was constructed. These models' performance on predicting the reported RPE values for future training sessions was compared to the naive baseline's performance. Both the ANN and LASSO models outperformed the baseline. Additionally, the LASSO model made more accurate predictions for the RPE than the ANN model. Furthermore, decelerations were identified as important external load indicators. Regardless of the applied machine learning technique, the group models resulted in equivalent or better predictions for the reported RPE values than the individual models. Machine learning techniques may have added value in predicting the RPE for future sessions to optimize training design and evaluation. Additionally, these techniques may be used in conjunction with expert knowledge to select key external load indicators for load monitoring.

  6. Study of the effect of oral health on physical condition of professional soccer players of the Football Club Barcelona.

    Science.gov (United States)

    Gay-Escoda, Cosme; Vieira-Duarte-Pereira, Dario-Miguel; Ardèvol, Jordi; Pruna, Ricard; Fernandez, Javier; Valmaseda-Castellón, Eduard

    2011-05-01

    The objective of this study was to evaluate the oral health status of professional soccer players of F.C. Barcelona and its relation to the incidence of sport lesions. Thirty professional soccer players were consecutively evaluated in the seasons 2003/4, 2004/5 and 2005/6. A research protocol to assess their oral health was developed. DMFT, Quigley & Hein plaque index (PI), Löe & Silness gingival index (GI), World Health Organization malocclusion index, Ramfjord teeth probing pocket depth (PPD), TMJ examination and history of dental trauma were recorded. All physical injuries sustained by players during the season were documented from F.C. Barcelona medical services. Mean DMFT score was 5.7 (SD 4.1), Quigley & Hein plaque index score was 2.3 (SD 1.1), Löe & Silness gingival index was 1.1 (SD 0.8), and periodontal pocket depth was 1.9 mm (SD 0.3). Pearson's analysis showed a significant correlation between PI and GI (pmedical follow-up, have significant oral health problems such as untreated caries, gingivitis or malocclusion, and suffer dental trauma as a result of sports activities. Their physical condition could also be associated to oral health.

  7. Interpreting physical performance in professional soccer match-play: should we be more pragmatic in our approach?

    Science.gov (United States)

    Carling, Christopher

    2013-08-01

    Academic and practitioner interest in the physical performance of male professional soccer players in the competition setting determined via time-motion analyses has grown substantially over the last four decades leading to a substantial body of published research and aiding development of a more systematic evidence-based framework for physical conditioning. Findings have forcibly shaped contemporary opinions in the sport with researchers and practitioners frequently emphasising the important role that physical performance plays in match outcomes. Time-motion analyses have also influenced practice as player conditioning programmes can be tailored according to the different physical demands identified across individual playing positions. Yet despite a more systematic approach to physical conditioning, data indicate that even at the very highest standards of competition, the contemporary player is still susceptible to transient and end-game fatigue. Over the course of this article, the author suggests that a more pragmatic approach to interpreting the current body of time-motion analysis data and its application in the practical setting is nevertheless required. Examples of this are addressed using findings in the literature to examine (a) the association between competitive physical performance and 'success' in professional soccer, (b) current approaches to interpreting differences in time-motion analysis data across playing positions, and (c) whether data can realistically be used to demonstrate the occurrence of fatigue in match-play. Gaps in the current literature and directions for future research are also identified.

  8. Relationships Between Training Load Indicators and Training Outcomes in Professional Soccer.

    Science.gov (United States)

    Jaspers, Arne; Brink, Michel S; Probst, Steven G M; Frencken, Wouter G P; Helsen, Werner F

    2017-03-01

    In professional senior soccer, training load monitoring is used to ensure an optimal workload to maximize physical fitness and prevent injury or illness. However, to date, different training load indicators are used without a clear link to training outcomes. The aim of this systematic review was to identify the state of knowledge with respect to the relationship between training load indicators and training outcomes in terms of physical fitness, injury, and illness. A systematic search was conducted in four electronic databases (CINAHL, PubMed, SPORTDiscus, and Web of Science). Training load was defined as the amount of stress over a minimum of two training sessions or matches, quantified in either external (e.g., duration, distance covered) or internal load (e.g., heart rate [HR]), to obtain a training outcome over time. A total of 6492 records were retrieved, of which 3304 were duplicates. After screening the titles, abstracts and full texts, we identified 12 full-text articles that matched our inclusion criteria. One of these articles was identified through additional sources. All of these articles used correlations to examine the relationship between load indicators and training outcomes. For pre-season, training time spent at high intensity (i.e., >90 % of maximal HR) was linked to positive changes in aerobic fitness. Exposure time in terms of accumulated training, match or combined training, and match time showed both positive and negative relationships with changes in fitness over a season. Muscular perceived exertion may indicate negative changes in physical fitness. Additionally, it appeared that training at high intensity may involve a higher injury risk. Detailed external load indicators, using electronic performance and tracking systems, are relatively unexamined. In addition, most research focused on the relationship between training load indicators and changes in physical fitness, but less on injury and illness. HR indicators showed relationships

  9. Internal training load and its longitudinal relationship with seasonal player wellness in elite professional soccer.

    Science.gov (United States)

    Clemente, Filipe Manuel; Mendes, Bruno; Nikolaidis, Pantelis Theodoros; Calvete, Francisco; Carriço, Sandro; Owen, Adam Lee

    2017-10-01

    Monitoring internal training load has been extensively used and described within team sport environments, however when compared to internal physiological measures such as heart rate (HR) and rating of perceived exertion (RPE), the literature is sparse. The primary aim of this investigation study was to assess differences of playing position on ITL, session-RPE and wellness across two different training microcycles (1 vs. 2 competitive games), in addition with examining the relationship between ITL and Hooper's Index across an entire season. Thirty-five professional soccer players from the Portuguese premier league participated in the study (25.7±5.0years; 182.3±6.4cm; 79.1±7.0kg). Analysis of variance revealed higher values of DOMS (Means(M): 3.33 vs. 3.10; p=0.001; effect Size (ES)=0.087), fatigue (M: 3.18 vs. 2.99; p=0.001; ES=0.060) and HI (M: 11.85 vs. 11.56; p=0.045; ES=0.034) in 2-game weeks compared with 1-game weeks. Correlation between ITL and HI levels found significant negative correlations between ITL and DOMS (ρ=-0.156), ITL and sleep (ρ=-0.109), ITL and fatigue (ρ=-0.225), ITL and stress (ρ=-0.188), and ITL and HI (ρ=-0.238) in 2-game weeks. Results from 1-game microcycle only highlighted negative correlations between ITL and stress (ρ=-0.080). It was concluded from the study that greater fatigue potential, muscle soreness, stress and ITL was significantly more apparent within a 2-game microcycle. As a result, care should be taken when planning the lead into and out of a 2-game fixture microcycle highlighting key specific recovery strategies to damped the increased stress effect. Additionally, the potential utilization of squad rotation strategies may be a positive approach with aim of managing the fatigue effect. Copyright © 2017 Elsevier Inc. All rights reserved.

  10. Analysis of Motor Activities of Professional Soccer Players during the 2014 World Cup in Brazil.

    Science.gov (United States)

    Chmura, Paweł; Andrzejewski, Marcin; Konefał, Marek; Mroczek, Dariusz; Rokita, Andrzej; Chmura, Jan

    2017-02-01

    The aim of the present study was to analyze motor activities of soccer players in seven consecutive rounds of matches of the 2014 World Cup in Brazil and to compare the performance of the world champions, the German national team with other participating teams. The study sample comprised 905 observations of 340 soccer players, who played full-time matches in all seven rounds of the tournament. The study was conducted using data collected from the Castrol Performance Index, a kinematic game analysis system that records movements of players with semi-automatic cameras. The following variables were analyzed: total distance covered, the percentage of total distance covered at high intensity, the number of sprints, frequency of sprints and peak running speed. A statistically significant increase (p ≤ 0.01) was noted in total distance covered, the percentage of distance covered at high intensity and total number of sprints, between the quarter-finals and semi-finals of the World Cup tournament in Brazil. The German national team covered a significantly longer total distance (p ≤ 0.05) and had a greater percentage of distance covered at high intensity (p ≤ 0.001) than players from other teams. The obtained results point to the necessity of development of players' aerobic endurance and speed-endurance abilities while preparing for top-level soccer tournaments. Winning a soccer championship requires players to run longer mean total distances and longer distances at high intensity during a single match.

  11. The effects of injury preventive warm-up programs on knee strength ratio in young male professional soccer players.

    Directory of Open Access Journals (Sweden)

    Abdolhamid Daneshjoo

    Full Text Available PURPOSE: We aimed to investigate the effect of FIFA 11+ (11+ and HarmoKnee injury preventive warm-up programs on conventional strength ratio (CSR, dynamic control ratio (DCR and fast/slow speed ratio (FSR in young male professional soccer players. These ratios are related to the risk of injury to the knee in soccer players. METHODS: Thirty-six players were divided into 3 groups; FIFA 11+, HarmoKnee and control (n = 12 per group. These exercises were performed 3 times per week for 2 months (24 sessions. The CSR, DCR and FSR were measured before and after the intervention. RESULTS: After training, the CSR and DCR of knee muscles in both groups were found to be lower than the published normal values (0.61, 0.72, and 0.78 during 60°.s(-1, 180°.s(-1 and 300°.s(-1, respectively. The CSR (60°.s(-1 increased by 8% and FSR in the quadriceps of the non-dominant leg by 8% in the 11+. Meanwhile, the DCR in the dominant and non-dominant legs were reduced by 40% and 30% respectively in the 11+. The CSR (60°.s(-1 in the non-dominant leg showed significant differences between the 11+, HarmoKnee and control groups (p = 0.02. As for the DCR analysis between groups, there were significant differences in the non-dominant leg between both programs with the control group (p = 0.04. For FSR no significant changes were found between groups. CONCLUSIONS: It can be concluded that the 11+ improved CSR and FSR, but the HarmoKnee program did not demonstrate improvement. We suggest adding more training elements to the HarmoKnee program that aimed to enhance hamstring strength (CSR, DCR and FSR. Professional soccer players have higher predisposition of getting knee injuries because hamstring to quadriceps ratio were found to be lower than the average values. It seems that the 11+ have potentials to improve CSR and FSR as well as prevent knee injuries in soccer players.

  12. Effects of in-season uphill sprinting on physical characteristics in semi-professional soccer players.

    Science.gov (United States)

    Kavaliauskas, Mykolas; Kilvington, Ross; Babraj, John

    2017-03-01

    Soccer performance is determined by a number of physiological adaptations that can be altered by high intensity training. However, the effectiveness of using an uphill sprint based protocol has not been demonstrated for soccer players. We sought to determine the effectiveness of an in-season uphill sprint training (UST) programme on soccer related physiological outcomes. Fourteen male soccer players (age: 22±8 years, height: 1.81±8 m, body mass: 76±12 kg) underwent testing (5-10-5 agility drill, Yo-Yo Intermittent Recovery Test Level 1, leg and back dynamometry and 3 km time trial) at baseline and after 6 weeks of UST or normal activity. Participants were allocated to a control (N.=7) or UST (N.=7) group. The UST group took part in twice weekly training consisting of 10 x 10 sec sprints with 60s recovery on a 7% gradient for six weeks. The control group maintained normal activity patterns. 3 km time trial, strength, agility and Yo-Yo performance were all significantly improved pre to post following 6 weeks of UST (agility 3%, d=1.3; strength 10%, d=-3.2; VO2max 3%, d=-1.4; 3-km TT 4%, d=1.3). In the control group 3 km time trial, strength, agility and Yo-Yo performance remained unchanged after 6 weeks (agility 0.1%, d=-0.2; strength 2%, d=0.0; VO2max -0.1%, d=0.0; 3-km TT 1.3%, d=0.3). Therefore in-season short duration UST is an effective way to improve soccer fitness in a time efficient manner.

  13. The Antecedents of Coaches' Interpersonal Behaviors: The Role of the Coaching Context, Coaches' Psychological Needs, and Coaches' Motivation.

    Science.gov (United States)

    Rocchi, Meredith; Pelletier, Luc G

    2017-10-01

    This study explored how the coaching context influences coaches' psychological needs, motivation, and reported interpersonal behaviors, using self-determination theory. In Study 1, 56 coaches identified how contextual factors influence their coaching experience. Coaches identified administration, athlete motivation, colleagues, parents, professional development, time, and work-life as having the largest impact on them. In Study 2, 424 coaches reported on their perceptions of the factors identified in Study 1 and their psychological needs, motivation, and interpersonal behaviors. Structural equation modeling analyses suggested perceptions of the coaching context supported or thwarted their psychological needs, which positively or negatively predicted their autonomous and controlled motivation. Coaches' autonomous motivation predicted their reported supportive interpersonal behaviors and controlled motivation predicted thwarting behaviors. Overall, the results provided additional support for understanding how the coaching context, coaches' psychological needs, and their motivation for coaching relate to their coaching behaviors.

  14. Comparison of the movement patterns between small- and large-side games training and competition in professional soccer players.

    Science.gov (United States)

    Giménez, Jesús V; Del-Coso, Juan; Leicht, Anthony S; Gomez, Miguel A

    2017-06-08

    The purpose of this investigation was to compare the movement patterns of professional soccer players during a small-sided game (SSG), a large-sided game (LSG) and a competitive friendly match (FM). Fourteen professional players participated in three training routines with a similar relative pitch area per player. The SSG and LSG consisted of 8 repetitions of 4-min game play, interspersed by 2-min of active recovery, and their data were compared to the first 32 minutes of a FM. All movement patterns from walking to sprint running were recorded using 10Hz GPS devices while player perception of exertion was recorded via visual analogue scale, post-trial. Total running distance (3852±405 vs. 3359±429 and 3088 ± 414 m), running distance at 5-6.9 m/s (222±98 vs. 75±53 and 49±35 m) and maximal running speed (7.0±0.7 vs. 6.1±0.4 and 6.0±0.7 m/s) were significantly greater during FM than for SSG and LSG. However, the number of accelerations (462±16 vs. 458±12 vs. 422±15) and decelerations (733±31 vs. 692 ±24 vs. 609±27), and the rating of perceived exertion (8±1 vs. 7±1 vs. 5±1) were significantly greater during SSG compared to LSG and FM. Although smaller game-based training routines do not replicate exactly the movement patterns of a competitive match, they can increase the execution of short-term and high-intensity movements for specialised training in professional soccer players.

  15. Biochemical assessments of oxidative stress, erythrocyte membrane fluidity and antioxidant status in professional soccer players and sedentary controls.

    Science.gov (United States)

    Cazzola, R; Russo-Volpe, S; Cervato, G; Cestaro, B

    2003-10-01

    Physical exercise is characterized by an increase in oxygen consumption by the whole body. This leads to a decrease in antioxidant levels that could promote both an increase in the markers of lipoprotein peroxidation and damage to the erythrocyte membrane with consequent modification of membrane fluidity. Different markers of oxidative stress, erythrocyte membrane fluidity and antioxidant status were determined in 20 professional soccer players and 20 sedentary controls. Plasma lipoperoxides and kinetics of Cu-stimulated plasma peroxidation were measured together with hydrosoluble (albumin, uric acid and vitamin C), liposoluble (vitamin E and bilirubin) and enzymatic (superoxide dismutase and glutathione peroxidase) serum antioxidants. Erythrocyte membrane rigidity was determined by measuring fluorescence anisotropy (rs) of the fluorescent probe 1, 3, 5 diphenylexatriene. The sportsmen showed higher levels of the following plasmatic antioxidants: ascorbic acid (Pmembrane fluidity (P=0.0152) were found to be significantly higher in the soccer players. Athletes undergoing regular and adequate training show improved antioxidant status together with a more fluid membrane status, which could contribute to improving both peripheral resistance to insulin and all the functional metabolic interchanges in the cellular membrane.

  16. EFFECTS OF MASSAGE UNDER HYPOXIC CONDITIONS ON EXERCISE-INDUCED MUSCLE DAMAGE AND PHYSICAL STRAIN INDICES IN PROFESSIONAL SOCCER PLAYERS

    Directory of Open Access Journals (Sweden)

    Hannes Gatterer

    2013-04-01

    Full Text Available Reports based on experiences from masseurs and players, mostly without any scientific background, suggest that the combination of a classical regeneration method (i.e. massage with exposure to hypoxia may enhance regeneration in soccer. The aim of this study was to evaluate whether this specific combination could affect blood parameters related to muscle damage and physical strain after a soccer game. Approximately 15 hours after two separate championship games, 10 professional male outfield players of the first Austrian division were exposed to normobaric hypoxia (FiO2 13.5% ~ 4000m or normoxia for 1 hour (30 minutes rest followed by 30 min massage (cross-over design. Creatine kinase (CK, urea and uric acid (UA were measured 4 days before the first game, and 15 and 63 hours after the two games. Match play increased CK values independently of the intervention. No effect of the massage in combination with hypoxia was seen. A trend was found between ∆ UA ([UA] 48 hours after exposure minus [UA] before exposure in response to hypoxia and SaO2 measured in hypoxia (r=0.612, p=0.06. Results show that massage under hypoxic conditions had no additional positive effect on the measured parameters compared to massage alone. Solely the trend of a relationship for ∆ UA and SaO2 might indicate that redox alterations are a potential consequence of hypoxic exposure.

  17. Off-Season Effects on Functional Performance, Body Composition, and Blood Parameters in Top-Level Professional Soccer Players.

    Science.gov (United States)

    Requena, Bernardo; García, Inmaculada; Suárez-Arrones, Luis; Sáez de Villarreal, Eduardo; Naranjo Orellana, José; Santalla, Alfredo

    2017-04-01

    Requena, B, García, I, Suárez-Arrones, L, Sáez de Villarreal, E, Naranjo Orellana, J, and Santalla, A. Off-season effects on functional performance, body composition, and blood parameters in top-level professional soccer players. J Strength Cond Res 31(4): 939-946, 2017-To examine the effects of a standard off-season period (OSP) on aerobic, sprint, and jumping performances, and body and blood composition in a top-level soccer team. Nineteen soccer players were measured. The OSP included to 2 weeks of no training (resting phase) and a 4-week period of moderate-training load (phase in which each player performed the vacation exercise plan). Player's functional performance (15- and 30-m sprint times [seconds], vertical jump [meter], and incremental field test Vam-Eval [kilometer per hour]), percentage of body fat (%) and blood composition (hematological and biochemical data) were measured at mid-season, end-season, and after the OSP. The percentage of body fat was nonaltered during the competitive season (10.8 ± 3.6 and 10.5 ± 3.5%) and increased significantly after the OSP (11.6 ± 3.6%, p ≤ 0.05). Similarly, the maximal aerobic speed (VVam-Eval) velocity (kilometer per hour) decreased (p ≤ 0.05) from 17.4 ± 1 and 17.3 ± 1.2 during the competitive season to 16.6 ± 0.9 after the OSP. The hematocrit and blood hemoglobin concentration increased (p ≤ 0.05) during the OSP, showing a blood hemoconcentration adaptation. However, sprint time (seconds) and jump height (meters) showed no significant changes after the OSP. Soccer players maintained their functional performance during high-intensity activities such as jumping or sprinting after the OSP proposed. By contrast, there was a decrease in aerobic performance (VVam-Eval) accompanied by a blood hemoconcentration, and an increase of body fat mass associated with a reduction of fat-free mass of the lower limbs. Our data suggest that an end-season evaluation is needed to design holiday training programs

  18. Advancing a new evidence-based professional in health care: job task analysis for health and wellness coaches.

    Science.gov (United States)

    Wolever, Ruth Q; Jordan, Meg; Lawson, Karen; Moore, Margaret

    2016-06-27

    The pressing need to manage burgeoning chronic disease has led to the emergence of job roles such as health and wellness coaches (HWCs). As use of this title has increased dramatically, so has the need to ensure consistency, quality and safety for health and wellness coaching (HWC) provided in both practice and research. Clear and uniform role definitions and competencies are required to ensure appropriate scope of practice, to allow best practices to emerge, and to support the implementation of well-designed, large scale studies to accumulate a rigorous evidence base. Since the nascent field is replete with heterogeneity in terms of role delineations and competencies, a collaborative volunteer non-profit organization, the National Consortium for Credentialing Health and Wellness Coaches (NCCHWC), has been built over the past six years to support professionalization of the field. In 2014, a professionally led Job Task Analysis (JTA) was conducted with 15 carefully selected subject matter experts (SMEs) with diverse education and professional backgrounds who were practicing HWC in a wide variety of settings. After establishing a thorough list of specific tasks employed during HWC, the expert panel discussed the knowledge and skills necessary to competently perform the tasks. Subsequently, a large validation survey assessed the relative importance and frequency of each identified job task in conducting HWC. The JTA identified 21 job tasks as essential to HWC. In the subsequent validation survey, 4026 practicing health and wellness coaches were invited to rate each of the 21 job tasks in terms of their importance and frequency. A response rate of 25.6 % provided a diverse sample (n = 1031) in terms of background, and represented a wide variety of training programs from academia, industry, the private sector and associations. Per best practices, the subset of practicing HWCs (n = 885) provided importance and frequency ratings to be used to calculate task and

  19. PERGAMON: A serious gaming and digital coaching platform supporting patients and healthcare professionals

    NARCIS (Netherlands)

    Klaassen, Randy; op den Akker, Hendrikus J.A.; Di Bitonto, Pierpaolo; Burger, Gert-Jan; Bul, Kim; Kato, Pam; Varajão, J. E. Q.; Cruz-Cunha, M.M.; Martinho, R.; Rijo, R.; Bjørn-Andersen, N.; Turner, R.; Alves, D.

    2016-01-01

    This paper describes the design of a platform for serious gaming and digital coaching supporting healthcare and self-management of chronic patients. An instantiation of the platform outlined here supports self-management of adolescents with Type I diabetes that is integrated with their usual

  20. Be a CHANGEMASTER: 12 Coaching Strategies for Leading Professional and Personal Change

    Science.gov (United States)

    Reiss, Karla

    2012-01-01

    "Be a CHANGEMASTER" is a practical guide for school and district leaders that provides 12 strategies for overcoming resistance to change. Unlike more theoretical books, this text shows how to adopt a coaching style of leadership as a systemic change strategy. Numerous examples demonstrate how the strategies used in this book have led to…

  1. Understanding Teachers' Perceptions of Academic Coaching Quality in an On-Site Professional Development Program

    Science.gov (United States)

    Wood, Phillip R.

    2013-01-01

    Quality teacher training and continued learning is essential to providing the high quality education that yields adequate levels of student success. Though called by many different names, academic coaches appear to be the answer to the continuing problem of creating a positive learning environment that meets the challenges of educating students…

  2. The Growth of Instructional Coaching Partner Conversations in a PreK-3rd Grade Teacher Professional Development Experience

    Science.gov (United States)

    Thomas, Earl E.; Bell, David L.; Spelman, Maureen; Briody, Jennifer

    2015-01-01

    Instructional coaching that supports teachers' with revising teaching practices is not understood. This study sought to understand the impact of the instructional coaching experience by recording coaching conversations/interactions with teachers. The purpose was to determine if the type of coaching conversations changed overtime during three…

  3. Physical fitness and anthropometric characteristics in professional soccer players of the United Arab Emirates

    Directory of Open Access Journals (Sweden)

    M. Magalhães Sales

    2014-09-01

    Conclusion: The anthropometric profile of soccer players that act in the United Arab Emirates is similar to others around the world. However, regarding the physical fitness, results are still inconclusive, since findings from other studies suggest that the anaerobic power of our sample is alike or lower than other elite players throughout the world. Likewise indirect VO2max, especially given the acknowledged limitations of obtaining indirectly this variable. In addition, making an analysis by playing position, the results of this study are similar to previous research.

  4. Heart rate responses and technical comparison between small- vs. large-sided games in elite professional soccer.

    Science.gov (United States)

    Owen, Adam L; Wong, Del P; McKenna, Michael; Dellal, Alexandre

    2011-08-01

    This study aims to examine the difference in heart rate (HR) responses and technical activities placed upon European elite players when exposed to 2-sided games differing in the number of players and playing area. Fifteen male soccer players from a Scottish Premier League team (26.3 ± 4.85 years, 182.4 ± 6.99 cm, 79.5 ± 8.05 kg, VO2max of 54.36 ± 5.45 ml·kg(-1)·min(-1)) performed both small (3 vs. 3 plus goalkeepers) and large (9 vs. 9 plus goalkeepers) sided games each lasting for 3 × 5 minutes interspersed with 4-minute passive recovery during the 2009-2010 season. The HR responses and players' technical actions were recorded throughout all sided games. Results show that small-sided games (SSG) induced significantly (p games. Furthermore, during SSGs, players spent significantly longer time in the >85% maximal HR zone (p games. Technical analysis revealed a large practical difference (effect size ranged from 1.5 to 21.2) between small- and large-sided games: less number of blocks, headers, interceptions, passes, and receives but more dribbles, shots, and tackles in SSG. Furthermore, SSG induced significantly lesser total ball contacts per game (p games. The different technical requirements also enable coaches to carry out training games more suitable to specific playing positions such as SSG for midfielders (more dribbles, tackles, and ball contacts per player) strikers (more shots), and large-sided games for defender (more blocks, headers, and interceptions).

  5. Vitamin C and E Supplementation Effects in Professional Soccer Players Under Regular Training

    Directory of Open Access Journals (Sweden)

    Stancanneli Mirtes

    2006-12-01

    Full Text Available Abstract Exercise training is known to induce an increase in free radical production potentially leading to enhanced muscle injury. Vitamins C and E are well known antioxidants that may prevent muscle cell damage. The purpose of this study was to determine the effects of these supplemental antioxidant vitamins on markers of oxidative stress, muscle damage and performance of elite soccer players. Ten male young soccer players were divided into two groups. Supplementation group (n = 5 received vitamins C and E supplementation daily during the pre-competitive season (S group, while the placebo group (PL group, n = 5 received a pill containing maltodextrin. Both groups performed the same training load during the three-month pre-season training period. Erythrocyte antioxidant enzymes glutathione reductase, catalase and plasma carbonyl derivatives did not show any significant variation among the experimental groups. Similarly, fitness level markers did not differ among the experimental groups. However, S group demonstrated lower lipid peroxidation and muscle damage levels (p

  6. Factors affecting the concussion knowledge of athletes, parents, coaches, and medical professionals

    OpenAIRE

    Cusimano, Michael D.; Stanley Zhang; Jane Topolovec-Vranic; Hutchison, Michael G.; Rowan Jing

    2017-01-01

    Objectives: To determine the predictors of knowledge and awareness of concussion symptoms and outcomes through a survey of athletes, parents of players and coaches in sports settings in Canada. Methods: A cross-sectional survey of athletic communities in Canada was conducted. Respondents? concussion knowledge score consists of responses to questions about the symptoms, diagnosis, and treatment of a concussion and the timing of return-to-sport post-concussion. The percentage of correct respons...

  7. Increasing Performance of Professional Soccer Players and Elite Track and Field Athletes with Peak Performance Training and Biofeedback: A Pilot Study.

    Science.gov (United States)

    Rijken, Noortje H; Soer, Remko; de Maar, Ewold; Prins, Hilco; Teeuw, Wouter B; Peuscher, Jan; Oosterveld, Frits G J

    2016-12-01

    The aim of this pilot study was to investigate the effects of an intervention consisting of mental coaching combined with either electro encephalogram (EEG) alpha power feedback or heart rate variability (HRV) feedback on HRV, EEG outcomes and self-reported factors related to stress, performance, recovery and sleep quality in elite athletes. A prospective pilot study was performed with two distinct cohorts. Soccer players were provided with four sessions of mental coaching combined with daily HRV biofeedback (Group A); track and field athletes were provided with four sessions of mental coaching in combination with daily neurofeedback (Group B). Measurements were performed at baseline, post intervention and at 5 weeks follow-up. Objective measures: EEG and ECG. Subjective measures: Numeric Rating Scale for performance, Pittsburgh Sleep Quality Index, Rest and Stress Questionnaire and Sports Improvement-60. Group characteristics were too distinct to compare the interventions. Linear mixed models were used to analyze differences within groups over time. In Group A, significant changes over time were present in alpha power at 5 of 7 EEG locations (p performance-related outcomes and stress reduction. Further research is needed to elucidate the effects of either type of feedback and to compare effects with a control group.

  8. Mellemlederes erfaringer med coaching af medarbejdere

    Directory of Open Access Journals (Sweden)

    Ole Michael Spaten

    2012-10-01

    Full Text Available 15 middle managers from a major Danish, nationwide company were trained to coach by two coaching psychologiststhrough theoretical presentations, individual coaching and peer coaching sessions with direct supervision(learning-by-doing, (see Spaten, 2011b. Until now there has been conducted rather limited empiricalresearch on managers who coach their employees. The aim was to investigate the managers challenging andsuccessful experiences when coaching their employees and how these coaching sessions were assessed by theiremployees. The qualitative analysis elicited three main themes: 1 coaching skills, 2 professional and personaldevelopment, and 3 the coaching relationship and power relations. Middle managers’ coaching skills were assessedvery positively by employees across all coaching sessions. One key finding of the study is that the manageras coach, should be very sensitive and empathetic in building the coaching relationship, be aware of the powerrelations and make clear boundaries between the role as leader and the role as coach.

  9. A formalization of the coach problem

    NARCIS (Netherlands)

    Schropp, G. Y R; Meyer, J. J Ch; Ramamoorthy, S.

    2015-01-01

    Coordination is an important aspect of multi-agent teamwork. In the context of robot soccer in the RoboCup Standard Platform League, our focus is on the coach as an external observer of the team, aiming to provide his teammates with effective tactical advice during matches. The coach problem can be

  10. Sport-specific fitness testing differentiates professional from amateur soccer players where VO2max and VO2 kinetics do not.

    Science.gov (United States)

    Wells, C M; Edwards, A M; Winter, E M; Fysh, M L; Drust, B

    2012-06-01

    The purpose of this study was to identify if sport-specific and cardiopulmonary exercise testing differentiated professional from amateur soccer players. Thirty six men comprising 18 professional (mean±s: age 23.2±2.4 years) and 18 amateur (mean±SD: age 21.1±1.6 years) soccer players participated and performed four tests on separate occasions: 1) a graded exercise test to determine VO2max; 2) four exercise transients from walking to 80%Δ for the determination of VO2 kinetics; 3) the Yo-Yo Intermittent Recovery Test level 2 (Yo-Yo IR2) and 4) a repeated sprint test (RST). The players did not differ in VO2max (professional 56.5±2.9 mL.kg-1.min-1; amateur 55.7±3.5 mL.kg-1.min-1: P=0.484) or VO2 kinetic fundamental measures (τ1 onset, professional 24.5±3.2 s; amateur 24.0±1.8 s: τ1 cessation, professional 28.7±2.8 s; amateur 29.3±3.5 s: P=0.923). However, the amateurs were outperformed in the Yo-Yo IR2 (Professional 966±153 m; Amateur 840±156 m) (P=0.034) and RST (best time, professional 6.46±0.27 s; amateur 6.84±0.24 s, P=0.012). Performance indices derived from field-based sport-specific performance tests identified significant differences between professional and amateur players (P<0.05). However, neither tests of VO2 kinetics nor VO2max differentiated between groups, suggesting laboratory tests of cardiorespiratory parameters are probably less consequential to soccer than sport-specific field-based observations.

  11. Creatine kinase kinetics in professional soccer players during a competitive season. DOI: 10.5007/1980-0037.2011v13n3p189

    Directory of Open Access Journals (Sweden)

    Daniel Barbosa Coelho

    2011-04-01

    Full Text Available Serum creatine kinase (CK concentration has been widely used as an indicator of skeletal muscle damage in sports. However, there are no longitunal studies on post-game CK kinetics in Soccer during a competitive season. The aim of this study was to evaluate serum CK kinetics in professional Soccer players at different post-game times during a competitive season without training interruption. Seventeen professional soccer players (age: 22.2±3.1 years, height: 179±6.0 cm, body fat percentage: 9.5±1.1, and 67.0±3.5 mL O2/kg/min were evaluated over a period of 3 months of the national championship. Serum CK concentration was measured before the beginning of the season (baseline and at four different times after a soccer game (post-1: 12-20 h, post-2: 36-48 h, post-3: 60-65 h, and post-4: 90-110 h. Plasma CK concentrations were higher at all times when compared to baseline (p<0.05. Post-2 CK concentration was lower than post-1 and higher than post-3 and -4 (p<0.05, with no significant differences between post-3 and post-4. In conclusion, serum CK kinetics was influenced by the training routine of the soccer players, with a peak between 12 and 20 h after the game, returning to normal within 60-65 h. This procedure can be used to monitor the recovery state of athletes and game and training intensities.

  12. Creatine kinase kinetics in professional soccer players during a competitive season. DOI: 10.5007/1980-0037.2011v13n3p189

    Directory of Open Access Journals (Sweden)

    Daniel Barbosa Coelho

    2011-04-01

    Full Text Available Serum creatine kinase (CK concentration has been widely used as an indicator of skeletal muscle damage in sports. However, there are no longitunal studies on post-game CK kinetics in Soccer during a competitive season. The aim of this study was to evaluate serum CK kinetics in professional Soccer players at different post-game times during a competitive season without training interruption. Seventeen professional soccer players (age: 22.2±3.1 years, height: 179±6.0 cm, body fat percentage: 9.5±1.1, and 67.0±3.5 mL O2/kg/min were evaluated over a period of 3 months of the national championship. Serum CK concentration was measured before the beginning of the season (baseline and at four different times after a soccer game (post-1: 12-20 h, post-2: 36-48 h, post-3: 60-65 h, and post-4: 90-110 h. Plasma CK concentrations were higher at all times when compared to baseline (p<0.05. Post-2 CK concentration was lower than post-1 and higher than post-3 and -4 (p<0.05, with no significant differences between post-3 and post-4. In conclusion, serum CK kinetics was influenced by the training routine of the soccer players, with a peak between 12 and 20 h after the game, returning to normal within 60-65 h. This procedure can be used to monitor the recovery state of athletes and game and training intensities.

  13. Heart rate-based training intensity and its impact on injury incidence among elite-level professional soccer players.

    Science.gov (United States)

    Owen, Adam L; Forsyth, Jacky J; Wong, Del P; Dellal, Alexandre; Connelly, Sean P; Chamari, Karim

    2015-06-01

    Elite-level professional soccer players are suggested to have increased physical, technical, tactical, and psychological capabilities when compared with their subelite counterparts. Ensuring these players remain at the elite level generally involves training many different bodily systems to a high intensity or level within a short duration. This study aimed to examine whether an increase in training volume at high-intensity levels was related to injury incidence, or increased the odds of sustaining an injury. Training intensity was monitored through time spent in high-intensity (T-HI) and very high-intensity (T-VHI) zones of 85-training volume at T-HI and injury incidence (r = 0.57, p = 0.005). Further analysis revealed how players achieving more time in the T-VHI zone during training increased the odds of sustaining a match injury (odds ratio = 1.87; 95% CI, 1.12-3.12, p = 0.02) but did not increase the odds of sustaining a training injury. Reducing the number of competitive match injuries among elite-level professional players may be possible if greater focus is placed on the training intensity and volume over a period of time ensuring the potential reduction of fatigue or overuse injuries. In addition, it is important to understand the optimal training load at which adaptation occurs without raising the risk of injury.

  14. Heart rate' based training intensity and its impact on injury incidence amongst elite level professional soccer players.

    Science.gov (United States)

    Owen, Adam L; Forsyth, Jacky J; Wong, Del P; Dellal, Alexandre; Connelly, Sean; Chamari, Karim

    2014-12-24

    Elite level professional soccer players are suggested to have increased physical, technical, tactical and psychological capabilities when compared to their sub-elite counterparts. Ensuring these players remain at the elite level generally involves training many different bodily systems to a high intensity or level within a short duration. This study aimed to examine whether an increase in training volume at high intensity levels were related to injury incidence, or increased the odds of sustaining an injury. Training intensity was monitored through time spent in high- (T-HI) and very high- (T-VHI) intensity zones of 85-training volume at T-HI and injury incidence (r=0.57, p=0.005). Further analysis revealed how players achieving more time in the T-VHI zone during training increased the odds of sustaining a match injury (odds ratio=1.87, 95% CI 1.12 to 3.12, p=0.02), but did not increase the odds of sustaining a training injury. Reducing the number of competitive match injuries amongst elite professional level players may be possible if greater focus is placed on the training intensity and volume over a period of time ensuring the potential reduction of fatigue or overuse injuries. In addition, it is important to understand the optimal training load at which adaptation occurs without raising the risk of injury.

  15. Using heart rate to detect high-intensity efforts during professional soccer competition.

    Science.gov (United States)

    García García, Oscar; Rial Boubeta, Antonio; Real Deus, Eulogio

    2012-08-01

    The goal of this article is to detect, describe, and compare 2 heart rate (HR) conditions associated with high-intensity efforts but somewhat different in nature: The first one is indicated by HR values close to the maximum heart reserve (MHRR), and the second is indicated by a marked increase in the HR values (MIHR). It was expected that both conditions were associated with different game situations. A sample of 441 game situations (241 MIHRs and 200 MHRRs), taken from HR records and individual filming of 12 elite soccer players, was assessed along 7 preseason competition matches. The game situations in which each of these 441 HR conditions took place were identified, using a previously established taxonomy of a combination of field formats and category systems in the Match Vision Studio Premium. For the recording of the HR condition, an HRM Polar was attached to the players when in competition, together with a simultaneous filming of their performance during the game. The HRM and video recordings were synchronized beforehand to be able to relate the game situation in the film with HR conditions. The results showed significant differences between both HR conditions for 4 criteria of game situations (Ball in play, Game Center, Role, and Opposition). In all the cases, the MIHR is more associated with active participation of the players in the game, whereas the MHRR is more associated with the end of this participation. Thus, the results suggest that MIHR could be a useful complementary measurement to assess the intensity of physiological load that elite soccer players bear during competition, together with more traditional measurements such as MHRR.

  16. Determinants of feedback retention in soccer players

    OpenAIRE

    Janu?rio, Nuno; Rosado, Ant?nio; Mesquita, Isabel; Gallego, Jos?; Aguilar-Parra, Jos? M.

    2016-01-01

    Abstract This study analyzed soccer players? retention of coaches? feedback during training sessions. We intended to determine if the retention of information was influenced by the athletes? personal characteristic (age, gender and the sports level), the quantity of information included in coach?s feedback (the number of ideas and redundancy), athletes? perception of the relevance of the feedback information and athletes? motivation as well as the attention level. The study that was conducted...

  17. In Pursuit of Becoming a Senior Coach: The Learning Culture for Australian Football League Coaches

    Science.gov (United States)

    Mallett, Clifford J.; Rossi, Tony; Rynne, Steven B.; Tinning, Richard

    2016-01-01

    Background and Purpose: Given the turbulent and highly contested environment in which professional coaches work, a prime concern to coach developers is how coaches learn their craft. Understanding the learning and development of senior coaches (SCs) and assistant coaches (ACs) in the Australian Football League (AFL--the peak organisation for…

  18. Professional judgement and decision-making in the planning process of high-level adventure sports coaching practice

    OpenAIRE

    Collins, L.; Collins, D

    2016-01-01

    This investigation examined the planning and decision-making processes in adventure sports coaching. We utilised a thematic analysis approach to investigate the planning decision-making practices of a sample of high-level adventure sports coaches over a series of sessions. The investigation discovered that, in planning coaching activity, high-level adventure sports coaches draw on their epistemological values and domain-specific expertise, employ a synergy of classic and naturalistic decision...

  19. Soccer Players Cultural Capital and Its Impact on Migration

    Science.gov (United States)

    Leskošek, Bojan; Vodičar, Janez; Topič, Mojca Doupona

    2016-01-01

    Abstract The purpose of this study was to identify factors that constituted the cultural capital among soccer players. We assumed that in the increasingly globalized world of professional soccer, a player’s success would often depend on migrating and adjusting to life in other countries. Willingness to migrate and successful adjustment are tied to player’s previous attitudes and/or behaviours (habitus), significant support from others, including family members, and previous experiences and success in sports and education. Our hypothesised model of the cultural capital was based on the Pierre Bourdieu’s theoretical framework. It consisted of 26 variables related to three sets of factors: soccer experiences, a family context and support, and educational achievements of the players and their parents. The model was tested using a sample of 79 current soccer coaches who also had been players at the elite level. A factor analysis was used to empirically verify the content of the hypothetical model of the soccer players’ cultural capital. Nine latent factors were extracted and together, they accounted for 55.01% of the total model variance. Individual factors obtained showed a sufficient level of substantial connection. The Cronbach’s alpha value of 0.77 confirmed the internal consistency of the operationalised variables in the hypothetical model. In addition, the impact of these aforementioned life dimensions on the migration of soccer players was studied. The results of the binary logistic regression analysis showed that the first factor of the hypothetical model (F1) had 2.2 times and the second factor (F8) had 3.9 times higher odds for migration abroad. Sociocultural findings using this new assessment approach could help create better “success conditions” in the talent development of young players. PMID:28031770

  20. Soccer Players Cultural Capital and Its Impact on Migration.

    Science.gov (United States)

    Križaj, Jožef; Leskošek, Bojan; Vodičar, Janez; Topič, Mojca Doupona

    2016-12-01

    The purpose of this study was to identify factors that constituted the cultural capital among soccer players. We assumed that in the increasingly globalized world of professional soccer, a player's success would often depend on migrating and adjusting to life in other countries. Willingness to migrate and successful adjustment are tied to player's previous attitudes and/or behaviours (habitus), significant support from others, including family members, and previous experiences and success in sports and education. Our hypothesised model of the cultural capital was based on the Pierre Bourdieu's theoretical framework. It consisted of 26 variables related to three sets of factors: soccer experiences, a family context and support, and educational achievements of the players and their parents. The model was tested using a sample of 79 current soccer coaches who also had been players at the elite level. A factor analysis was used to empirically verify the content of the hypothetical model of the soccer players' cultural capital. Nine latent factors were extracted and together, they accounted for 55.01% of the total model variance. Individual factors obtained showed a sufficient level of substantial connection. The Cronbach's alpha value of 0.77 confirmed the internal consistency of the operationalised variables in the hypothetical model. In addition, the impact of these aforementioned life dimensions on the migration of soccer players was studied. The results of the binary logistic regression analysis showed that the first factor of the hypothetical model (F1) had 2.2 times and the second factor (F8) had 3.9 times higher odds for migration abroad. Sociocultural findings using this new assessment approach could help create better "success conditions" in the talent development of young players.

  1. Soccer Players Cultural Capital and Its Impact on Migration

    Directory of Open Access Journals (Sweden)

    Križaj Jožef

    2016-12-01

    Full Text Available The purpose of this study was to identify factors that constituted the cultural capital among soccer players. We assumed that in the increasingly globalized world of professional soccer, a player’s success would often depend on migrating and adjusting to life in other countries. Willingness to migrate and successful adjustment are tied to player’s previous attitudes and/or behaviours (habitus, significant support from others, including family members, and previous experiences and success in sports and education. Our hypothesised model of the cultural capital was based on the Pierre Bourdieu’s theoretical framework. It consisted of 26 variables related to three sets of factors: soccer experiences, a family context and support, and educational achievements of the players and their parents. The model was tested using a sample of 79 current soccer coaches who also had been players at the elite level. A factor analysis was used to empirically verify the content of the hypothetical model of the soccer players’ cultural capital. Nine latent factors were extracted and together, they accounted for 55.01% of the total model variance. Individual factors obtained showed a sufficient level of substantial connection. The Cronbach’s alpha value of 0.77 confirmed the internal consistency of the operationalised variables in the hypothetical model. In addition, the impact of these aforementioned life dimensions on the migration of soccer players was studied. The results of the binary logistic regression analysis showed that the first factor of the hypothetical model (F1 had 2.2 times and the second factor (F8 had 3.9 times higher odds for migration abroad. Sociocultural findings using this new assessment approach could help create better “success conditions” in the talent development of young players.

  2. Use of Ultrasound to Monitor Biceps Femoris Mechanical Adaptations after Injury in a Professional Soccer Player

    Directory of Open Access Journals (Sweden)

    Eleftherios Kellis, Nikiforos Galanis, Chrysanthos Chrysanthou, Nikolaos Kofotolis

    2016-03-01

    Full Text Available This study examined the use of ultrasound to monitor changes in the long head of the biceps femoris (BF architecture of aprofessional soccer player with acute first-time hamstring strain. The player followed a 14 session physiotherapy treatment until return to sport. The pennation angle and aponeurosis strain of the long head of the biceps femoris (BF were monitored at 6 occasions (up until 1 year after injury. The size of the scar / hematoma was reduced by 63.56% (length and 67.9% (width after the intervention and it was almost non-traceable one year after injury. The pennation angle of the fascicles underneath the scar showed a decline of 51.4% at the end of the intervention while an increase of 109.2% of the fascicles which were closer to deep aponeurosis was observed. In contrast, pennation angle of fascicles located away from the injury site were relatively unaffected. The treatment intervention resulted in a 57.9% to 77.3% decline of maximum strain per unit of MVC moment and remained similar one year after the intervention. This study provided an example of the potential use of ultrasound-based parameters to link the mechanical adaptations of the injured muscle to specific therapeutic intervention.

  3. Safety of third-generation artificial turf in male elite professional soccer players in Italian major league.

    Science.gov (United States)

    Lanzetti, R M; Ciompi, A; Lupariello, D; Guzzini, M; De Carli, A; Ferretti, A

    2017-04-01

    Our hypothesis is that there are no difference in the injury incidence on artificial turf and natural grass. During the 2011/2012 season, we recorded injuries which occurred to two Italian stadiums equipped with third-generation artificial turf during 36 games (391 players). Data were compared with the injuries which occurred in the same season in two stadiums equipped with natural grass (372 players). We recorded 43 injuries during the playing time (16.7 per 1000 h). About 23 (18.1 per 1000 h) injuries occurred on artificial turf, while 20 (15.2 per 1000 h) on the natural grass with no statistical differences P > 0.05. We recorded 10 (7.87 per 1000 h) contact and 13 (10.23 per 1000 h) non-contact injuries on artificial turf, while 5 (3.8 per 1000 h) contact and 15 (11.4 per 1000 h) non-contact injuries on natural grass P > 0.05. The overall relative risk was 1.15; 95% CI: 0.64-2.07). Our study demonstrates a substantial equivalence in injury risk on natural grass and artificial turf in elite professional soccer athletes during official matches. © 2016 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  4. The use of individualized speed and intensity thresholds for determining the distance run at high-intensity in professional soccer.

    Science.gov (United States)

    Abt, Grant; Lovell, Ric

    2009-07-01

    As with other match analysis systems, ProZone uses an absolute speed threshold to identify running speeds at "high-intensity". In this study, we examined the use of an individualized high-intensity speed threshold based on the speed at the second ventilatory threshold (VT(2speed)) for assessment of the distance run at high-intensity during matches. Ten professional soccer players completed a maximal treadmill test to determine VT(2speed). Match data were identified by means of the ProZone match analysis system. The distances run at high-intensity during matches were calculated using the default value (19.8 km . h(-1)) and VT(2speed). Differences between VT(2speed) and the default were analysed using a non-parametric median sign test. The distances run at high-intensity were compared with a paired t-test. The median VT(2speed) was 15 km x h(-1) (range 14-16 km x h(-1)), which was less than the default (P distance run at high-intensity based on the default and VT(2speed) was 845 m (s = 296) and 2258 m (s = 707), respectively [mean difference 1413 m; P distance run at high-intensity can be substantially underestimated.

  5. Changes of the psychophysical state and feeling of wellness of professional soccer players during pre-season and in-season periods.

    Science.gov (United States)

    Fessi, Mohamed Saifeddin; Nouira, Sabeur; Dellal, Alexandre; Owen, Adam; Elloumi, Mohamed; Moalla, Wassim

    2016-01-01

    Perceived changes due to training monotony, strain, sleep, stress, fatigue, muscle soreness and the influence of specific training sessions on the affective valence were explored in professional soccer players. Seventeen players completed the Hooper questionnaire, the ratings of perceived exertion and feeling scale (FS) every training/match day before and during the soccer season. Higher players' training loads were recorded during pre-season when compared with in-season period (2558.1 ± 262.4 vs. 1642.8 ± 169.3 a.u., p muscle soreness in pre-season were higher than those observed during in-season (p training sessions, including technical/tactical work, induced an improved feeling score but linked with a lower training load when compared with sessions focus on physical emphasis (p training induces a significantly more strenuous and exhausting demands on professional soccer players compared with the in-season period at the elite level.

  6. Baseline Mechanical and Neuromuscular Profile of Knee Extensor and Flexor Muscles in Professional Soccer Players at the Start of the Pre-Season

    Directory of Open Access Journals (Sweden)

    García-García Oscar

    2017-08-01

    Full Text Available The aim of the study was to determine the mechanical and neuromuscular profile of knee extensor and flexor muscles in professional soccer players at the start of the pre-season, and to calculate percentages for symmetry, as well as examine differences according to the player’s positional role. The vastus medialis (VM, vastus lateralis (VL, rectus femoris (RF and biceps femoris (BF of 16 professional soccer players were evaluated by means of tensiomyography (TMG on the first day of the pre-season. A paired-samples t test (p < .05 was used to compare the dominant and non-dominant lower limb. One-way ANOVA was applied, with the positional role as an independent factor. No differences were observed between the dominant and non-dominant leg. The highest degree of symmetry corresponded to the VM (92.5 ± 2.7%, and the lowest to the BF (80.7 ± 10.9%. The positional role was associated with significant differences in some of the variables for the BF, RF and VM, although only the half-relaxation time in the BF and the time to sustain force in the VM differed across all the playing positions considered. TMG was shown to be a useful way of evaluating the neuromuscular characteristics of soccer players at the start of the pre-season, and of establishing baseline values for individual players.

  7. A Glance over Youth Footballers (Soccer Injury Profile: Next Step Required to Be Professional

    Directory of Open Access Journals (Sweden)

    Khatija Bahdur

    2017-10-01

    Full Text Available Youth football players are a special population of players. These developmental years play a key role in talent development and can build a good foundation for future success. Correct and age-appropriate training methods are essential for youth players, not just for development with regard to performance but also with regard to preventing injuries. Injuries sustained during the teenage years can create chronic problems for the player. This population is special because it is during these years that players undergo physical maturation, undergoing the changes within the body that is essential for the transition for child to adult. The rate and manner of physical maturation varies in each individual and planning around these changes is essential. Training loads, rest, and training types must be individualised to maximise progression as a player and prevent injury. The lower limbs are most susceptible to injury with the thighs, knee, ankles, groin and calf identified as common injury sites. In order to prevent injury, it is important to implement correct injury prevention methods and enhance the support and education of youth coaches in this regard.

  8. Caracterização da performance muscular em atletas profissionais de futebol Characterization of professional soccer players' muscle performance

    Directory of Open Access Journals (Sweden)

    Sérgio T. da Fonseca

    2007-06-01

    . However, there is a paucity of data that characterizes the muscular performance in Brazilian professional soccer athletes. Therefore, the objective of this study was to make a descriptive analysis of parameters related to the muscular performance of this population. METHODS: The sample of this study was composed of 117 athletes belonging to professional soccer clubs in Minas Gerais State. In order to evaluate the muscular performance of the athletes, an isokinetic dynamometer was used and the tests involved maximum voluntary contractions of the selected muscles. Hip abductors and adductors were assessed at the speeds of 30º/s, 60º/s and 120º/s; knee flexors and extensors at 60º/s, 180º/s and 300º/s; and ankle dorsiflexors, plantarflexors, invertors and evertors at 30º/s, 60º/s and 180º/s. Descriptive statistics were used to present the normative data and paired t-tests were used to identify significant differences between legs considering the parameters evaluated in this study. RESULTS: This study generated normative data to characterize the profile of Brazilian professional soccer players relative to their capacity of producing torque, muscle work and power. Significant differences were observed between legs considering some of the study's variables. CONCLUSION: The established normative data can be used as reference values in the prevention, training and rehabilitation of the athletes. In addition, these data may be used as reference for future studies with the objective of testing the association between muscular performance and incidence of injury in soccer practice.

  9. Mellemlederes erfaringer med coaching af medarbejdere

    DEFF Research Database (Denmark)

    Spaten, Ole Michael

    2012-01-01

    rather limited empirical research on managers who coach their employees. The aim was to investigate the managers challenging and successful experiences when coaching their employees and how these coaching sessions were assessed by their employees. The qualitative analysis elicited three main themes: 1......15 middle managers from a major Danish, nationwide company were trained to coach by two coaching psychologists through theoretical presentations, individual coaching and peer coaching sessions with direct supervision (learning-by-doing, (see Spaten, 2011b)). Until now there has been conducted......) coaching skills, 2) professional and personal development, and 3) the coaching relationship and power relations. Middle managers’ coaching skills were assessed very positively by employees across all coaching sessions. One key finding of the study is that the manager as coach, should be very sensitive...

  10. Activity profiles of professional soccer, rugby league and Australian football match play.

    Science.gov (United States)

    Varley, Matthew C; Gabbett, Tim; Aughey, Robert J

    2014-12-01

    Abstract We compared the match activity profiles of elite footballers from Australian football (AF), rugby league (RL) and soccer (SOC), using identical movement definitions. Ninety-four elite footballers from AF, RL or SOC clubs in Australia participated in this study. Movement data were collected using a 5-Hz global positioning system from matches during the 2008-2011 competitive seasons, including measures of velocity, distance, acceleration and bouts of repeat sprints (RS). Australian footballers covered the greatest relative running distances (129 ± 17 m.min -1 ) compared to RL (97 ± 16 m.min -1 ) and SOC (104 ± 10 m.min -1 ) (effect size [ES]; 1.0-2.8). The relative distance covered (4.92 ± 2.10 m.min -1 vs. 5.42 ± 2.49 m.min -1 ; 0.74 ± 0.78 m.min -1 vs. 0.97 ± 0.80 m.min -1 ) and the number of high-velocity running (0.4 ± 0.2 no.min -1 vs. 0.4 ± 0.2 no.min -1 ) and sprint (0.06 ± 0.06 no.min -1 vs. 0.08 ± 0.07 no.min -1 ) efforts between RL and SOC players were similar (ES; 0.1-0.3). Rugby league players undertook the highest relative number of accelerations (1.10 ± 0.56 no.min -1 ). RS bouts were uncommon for all codes. RL and SOC players perform less running than AF players, possibly due to limited open space as a consequence of field size and code specific rules. While training in football should be code specific, there may be some transference of conditioning drills across codes.

  11. A Coach's Code of Conduct. Position Statement

    Science.gov (United States)

    Lyman, Linda; Ewing, Marty; Martino, Nan

    2009-01-01

    Coaches exert a profound impact on our youths; therefore, society sets high expectations for them. As such, whether coaches are compensated or work solely as volunteers, they are responsible for executing coaching as a professional. If we are to continue to enhance the cultural perceptions of coaching, we must strive to develop and master the…

  12. Background Review of Existing Literature on Coaching

    OpenAIRE

    Nikki Aikens; Lauren Akers

    2011-01-01

    In this report, we identify studies that link coaching and specific coaching models with outcomes for classrooms, providers, and children, while also highlighting critical aspects of coaching. Specifically, we summarize the research base for coaching as a professional development tool, including the strengths and weaknesses of this research.

  13. A comparison of the musculoskeletal assessments of the shoulder girdles of professional rugby players and professional soccer players

    Directory of Open Access Journals (Sweden)

    Horsley Ian G

    2012-09-01

    Full Text Available Abstract Objective To identify posture types that exist in professional rugby players, and compare them with a population of non-overhead athletes in order to identify possible relationships towards the potential for shoulder injuries. Design Observational design Setting: Sports Medicine Clinic Participants: Convenience sample Methodology: Static assessment of posture was carried out in standing, active and passive range of glenohumeral motion, and isometric strength was carried out in accordance with previously recorded protocols. Interventions Nil Outcome Measures: Observational classification of posture, active and passive range of glenohumeral joint range of motion, isometric strength of selected muscle groups, selected muscle flexibility and Hawkins and Neer impingement tests. Results There was a significant difference on range of motion between the two groups (0.025–0.000, isometric middle (0.024–0.005, and lower trapezius (0.01–0.001. Conclusion: There were significant differences between strength and flexibility of muscles around the shoulder girdle between professional rugby players and a control group of professional non-overhead athletes.

  14. Solar soccer

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    2012-11-01

    What do Italy and Germany have in common? The world's largest PV markets and world class soccer. But while PV systems are frequently found on the rooftops of Germany's soccer stadiums, Italy has left this potential largely untapped.

  15. Embedded Professional Development and Classroom-Based Early Reading Intervention: Early Diagnostic Reading Intervention through Coaching

    Science.gov (United States)

    Amendum, Steven J.

    2014-01-01

    The purpose of the current mixed-methods study was to investigate a model of professional development and classroom-based early reading intervention implemented by the 1st-grade teaching team in a large urban/suburban school district in the southeastern United States. The intervention provided teachers with ongoing embedded professional…

  16. Positional synchronization affects physical and physiological responses to preseason in professional football (soccer).

    Science.gov (United States)

    Folgado, Hugo; Gonçalves, Bruno; Sampaio, Jaime

    2018-01-01

    This study aimed to identify changes in tactical, physical and physiological performances in large-sided games during the preseason of elite footballers. Thirty professional football players participated in several GK+8vs.8+GK large-sided games across the first four weeks of the season. Players were monitored by GPS units and heart rate monitors to quantify physical, physiological and tactical performances. The variables were compared according to the preseason period, players' positioning and professional experience. The training situation promoted similar physiological responses during the first and the last training period. However, players were revealed to have higher levels of positional synchronization during the last preseason period, indicating an improved tactical performance. Tactical variables seem to reflect the improvement of players' performance during the preseason, measured in large-sided games situation, while affecting both physical and physiological demands. These results highlight the potential of positioning derived variables, concurrently to physical and physiological variables, for football training optimization.

  17. Ankle Injuries: Reduce the Risk by Using a Soccer-Specific Warm-up Routine

    Science.gov (United States)

    Elliott, Steven; Ellis, Margery; Combs, Sue; Hunt Long, Lynn

    2015-01-01

    Injuries to the ankle are among the most common injuries for soccer players at any age. Soccer coaches should be aware of current research and best practices that suggest it is possible to decrease the incidence of soccer players' ankle injuries by providing an appropriate warm-up to utilize prior to practices and games. This article introduces…

  18. Self-Regulation of Practice Behavior Among Elite Youth Soccer Players : An Exploratory Observation Study

    NARCIS (Netherlands)

    Toering, Tynke; Elferink-Gemser, Marije; Jordet, Geir; Jorna, Casper; Pepping, Gert-Jan; Visscher, Chris

    2011-01-01

    This study aimed to measure behavioral correlates of self-regulation in elite youth soccer players. Behaviors regarded as indicative of self-regulated learning were identified by interviewing six expert youth soccer coaches. These behaviors were observed during practice of eight elite youth soccer

  19. Does kinesiology taping of the ankles affect proprioceptive control in professional football (soccer) players?

    Science.gov (United States)

    Bailey, Daniel; Firth, Paul

    2017-05-01

    To determine whether the bilateral application of kinesiology tape (KT) to professional footballers' ankles can improve their lower limb proprioception. A single blind randomised crossover study. Participants were randomly assigned to complete a proprioception test in either a taped or not taped condition first. Following a wash out period, participants were then re-tested in the alternate condition. A UK Championship League Football Club, mid-season. Twenty male professional football players over the age of 18, currently match fit with no injuries. Proprioception was assessed by participants undertaking the moving target program on the balance module attached to a Kin-Com 125AP isokinetic dynamometer. A paired sample two tailed t-test was used to assess whether there was a significant difference between the participants test scores in the not taped and taped conditions. The bilateral application of KT to professional footballers' ankles did not bring about a significant change in participants' scores when tested with a fine movement and balance control test. Percentage accuracy score mean difference 4.2 (p = 0.285). The results of this study do not support the use of KT when applied to the ankles of healthy footballers as a method of improving proprioception. Copyright © 2016 Elsevier Ltd. All rights reserved.

  20. Coaching works! A qualitative study exploring the effects of coaching in a public sector organisation

    OpenAIRE

    Edwards, Joseph; Snowden, Michael; Halsall, Jamie

    2016-01-01

    Professional development has become an important tool in the development of individual working in a public sector organisation. A crucial part of professional development is mentoring and coaching employees. The aim of this paper was to investigate the effects of coaching in the workplace, specifically whether coaching or being a coach is related to job satisfaction and psychological empowerment and whether being in a culture of coaching is related to job satisfaction. The research was carrie...

  1. Physical profiles of elite male field hockey and soccer players ...

    African Journals Online (AJOL)

    Background. The physical demands of field hockey and soccer, based on match analysis, are comparable. As a consequence many exercise scientists and coaches have started to use the same type of field tests for hockey and soccer for the purposes of talent identification and training prescription. The validity of this ...

  2. The influence of recovery and training phases on body composition, peripheral vascular function and immune system of professional soccer players.

    Directory of Open Access Journals (Sweden)

    Simon Reinke

    Full Text Available Professional soccer players have a lengthy playing season, throughout which high levels of physical stress are maintained. The following recuperation period, before starting the next pre-season training phase, is generally considered short but sufficient to allow a decrease in these stress levels and therefore a reduction in the propensity for injury or musculoskeletal tissue damage. We hypothesised that these physical extremes influence the body composition, blood flow, and endothelial/immune function, but that the recuperation may be insufficient to allow a reduction of tissue stress damage. Ten professional football players were examined at the end of the playing season, at the end of the season intermission, and after the next pre-season endurance training. Peripheral blood flow and body composition were assessed using venous occlusion plethysmography and DEXA scanning respectively. In addition, selected inflammatory and immune parameters were analysed from blood samples. Following the recuperation period a significant decrease of lean body mass from 74.4+/-4.2 kg to 72.2+/-3.9 kg was observed, but an increase of fat mass from 10.3+/-5.6 kg to 11.1+/-5.4 kg, almost completely reversed the changes seen in the pre-season training phase. Remarkably, both resting and post-ischemic blood flow (7.3+/-3.4 and 26.0+/-6.3 ml/100 ml/min respectively, were strongly reduced during the playing and training stress phases, but both parameters increased to normal levels (9.0+/-2.7 and 33.9+/-7.6 ml/100 ml/min during the season intermission. Recovery was also characterized by rising levels of serum creatinine, granulocytes count, total IL-8, serum nitrate, ferritin, and bilirubin. These data suggest a compensated hypo-perfusion of muscle during the playing season, followed by an intramuscular ischemia/reperfusion syndrome during the recovery phase that is associated with muscle protein turnover and inflammatory endothelial reaction, as demonstrated by i

  3. Kollegial Coaching

    DEFF Research Database (Denmark)

    Lystbæk, Christian Tang

    Bidraget sammenfatter pointerne fra min ph.d.-afhandling: Kollegial Coaching - Filosoferende fællesskaber i professionspraksis. Bidraget fokuserer på: 1. Kontekstualisering af coaching i feltet for praksislæring 2. Konfigurering af coaching som ramme for filosoferende fællesskaber 3....... Konceptualisering af coaching som modus for evidensreflekteret praksis...

  4. Circannual rhythm of plasmatic vitamin D levels and the association with markers of psychophysical stress in a cohort of Italian professional soccer players.

    Science.gov (United States)

    Lombardi, Giovanni; Vitale, Jacopo Antonino; Logoluso, Sergio; Logoluso, Giovanni; Cocco, Nino; Cocco, Giulio; Cocco, Antonino; Banfi, Giuseppe

    2017-01-01

    Adequate plasmatic Vitamin D levels are crucial to maintain calcium homeostasis and bone metabolism both in the general population and in athletes. Correct dietary supply and a regular sun exposure are fundamental for allowing the desired and effective fitness level. Past studies highlighted a scenario of Vitamin D insufficiency among professional soccer players in several countries, especially in North Europe, whilst a real deficiency in athletes is rare. The typical seasonal fluctuations of Vitamin D are wrongly described transversally in athletes belonging to teams that play at different latitudes and a chronobiologic approach studying the Vitamin D circannual rhythm in soccer players has not been described yet. Therefore, we studied plasma vitamin D, cortisol, testosterone, and creatin kinase (CK) concentrations in three different Italian professional teams training at the same latitude during a period of two consecutive competitive seasons (2013 and 2014). In this retrospective observational study, 167 professional soccer players were recruited (mean age at sampling 25.1 ± 4.7 years) and a total of 667 blood drawings were carried out to determine plasma 25(OH)D, serum cortisol, serum testosterone and CK levels. Testosterone to cortisol ratio (TC) was calculated based as a surrogate marker of overtraining and psychophysical stress and each athlete was drawn until a maximum of 5 times per season. Data extracted by a subgroup of players that underwent at least 4 sample drawings along a year (N = 45) were processed with the single and population mean cosinor tests to evaluate the presence of circannual rhythms: the amplitude (A), acrophase (Φ) and the MESOR (M) are described. In total, 55 players (32.9%) had an insufficient level of 25(OH)D during the seasons and other 15 athletes (9.0%) showed, at least once, a deficiency status of Vitamin D. The rhythmometric analyses applied to the data of Vitamin D revealed the presence of a significant circannual rhythm (p

  5. Nutritional Status and Daytime Pattern of Protein Intake on Match, Post-Match, Rest and Training Days in Senior Professional and Youth Elite Soccer Players.

    Science.gov (United States)

    Bettonviel A, E O; Brinkmans N, Y J; Russcher, Kris; Wardenaar, Floris C; Witard, Oliver C

    2016-06-01

    The nutritional status of elite soccer players across match, postmatch, training and rest days has not been defined. Recent evidence suggests the pattern of dietary protein intake impacts the daytime turnover of muscle proteins and, as such, influences muscle recovery. We assessed the nutritional status and daytime pattern of protein intake in senior professional and elite youth soccer players and compared findings against published recommendations. Fourteen senior professional (SP) and 15 youth elite (YP) soccer players from the Dutch premier division completed nutritional assessments using a 24-hr web-based recall method. Recall days consisted of a match, postmatch, rest, and training day. Daily energy intake over the 4-day period was similar between SP (2988 ± 583 kcal/day) and YP (2938 ± 465 kcal/day; p = .800). Carbohydrate intake over the combined 4-day period was lower in SP (4.7 ± 0.7 g·kg-1 BM·day-1) vs. YP (6.0 ± 1.5 g·kg-1 BM·day-1, p = .006) and SP failed to meet recommended carbohydrate intakes on match and training days. Conversely, recommended protein intakes were met for SP (1.9 ± 0.3 g·kg-1 BM·day-1) and YP (1.7 ± 0.4 g·kg-1 BM·day-1), with no differences between groups (p = .286). Accordingly, both groups met or exceeded recommended daily protein intakes on individual match, postmatch, rest and training days. A similar "balanced" daytime pattern of protein intake was observed in SP and YP. To conclude, SP increased protein intake on match and training days to a greater extent than YP, however at the expense of carbohydrate intake. The daytime distribution of protein intake for YP and SP aligned with current recommendations of a balanced protein meal pattern.

  6. Relationships between rating-of-perceived-exertion- and heart-rate-derived internal training load in professional soccer players: a comparison of on-field integrated training sessions.

    Science.gov (United States)

    Campos-Vazquez, Miguel Angel; Mendez-Villanueva, Alberto; Gonzalez-Jurado, Jose Antonio; León-Prados, Juan Antonio; Santalla, Alfredo; Suarez-Arrones, Luis

    2015-07-01

    To describe the internal training load (ITL) of common training sessions performed during a typical week and to determine the relationships between different indicators of ITL commonly employed in professional football (soccer). Session-rating-of-perceived-exertion TL (sRPE-TL) and heart-rate- (HR) derived measurements of ITL as Edwards TL and Stagno training impulses (TRIMPMOD) were used in 9 players during 3 periods of the season. The relationships between them were analyzed in different training sessions during a typical week: skill drills/circuit training + small-sided games (SCT+SSGs), ball-possession games+technical-tactical exercises (BPG+TTE), tactical training (TT), and prematch activation (PMa). HR values obtained during SCT+SSGs and BPG+TTE were substantially greater than those in the other 2 sessions, all the ITL markers and session duration were substantially greater in SCT+SSGs than in any other session, and all ITL measures in BPG+TTE were substantially greater than in TT and PMa sessions. Large relationships were found between HR>80% HRmax and HR>90% HRmax vs sRPE-TL during BPG+TTE and TT sessions (r=.61-.68). Very large relationships were found between Edwards TL and sRPE-TL and between TRIMPMOD and sRPE-TL in sessions with BPG+TTE and TT (r=.73-.87). Correlations between the different HR-based methods were always extremely large (r=.92-.98), and unclear correlations were observed for other relationships between variables. sRPE-TL provided variable-magnitude within-individual correlations with HR-derived measures of training intensity and load during different types of training sessions typically performed during a week in professional soccer. Caution should be applied when using RPE- or HR-derived measures of exercise intensity/load in soccer training interchangeably.

  7. High injury incidence in adolescent female soccer

    DEFF Research Database (Denmark)

    Clausen, Mikkel Bek; Zebis, Mette Kreutzfeldt; Møller, Merete

    2014-01-01

    in the prospective registration of injuries. All players were enrolled on a team participating in Danish Football Association series. Soccer injuries and exposure were reported weekly by answers to standardized text message questions, followed by individual injury interviews. Soccer exposure and playing levels were......BACKGROUND: Previous studies report varying rates of time-loss injuries in adolescent female soccer, ranging from 2.4 to 5.3 per 1000 athlete-exposures or 2.5 to 3.7 per 1000 hours of exposure. However, these studies collected data using traditional injury reports from coaches or medical staff......, with methods that significantly underestimate injury rates compared with players' self-reports. PURPOSE: The primary aim was to investigate the injury incidence in adolescent female soccer using self-reports via mobile telephone text messaging. The secondary aim was to explore the association between soccer...

  8. Effects of low-load resistance training with blood flow restriction on muscle size and strength of professional soccer players with muscle imbalance

    Directory of Open Access Journals (Sweden)

    Benedito Sergio Denadai

    2017-12-01

    Full Text Available The purposes of this study were to determine whether low intensity resistance training combined with blood flow restriction (LI-BFR could affect the concentric hamstrings/quadriceps muscle strength ratio (Hcon:Qcon of professional soccer players with Hcon:Qcon imbalance (Study 1, and whether hamstrings strength response observed after LI-BFR is associated with muscle hypertrophy (Study 2. In the Study 1, athletes were randomly divided into a training group (n = 6 and a control group (n = 5. In the Study 2, all athletes (n = 11 have performed the training programme. The athletes participated in a 6-week (twice a week supervised training programme (unilateral knee flexion at 30% 1RM consisting of 12 training sessions. Peak concentric torque of knee flexors (+8%; P < 0.001 and Hcon:Qcon (+9%; P < 0.01 were significantly increased after LI-BFR. Moreover, the cross sectional area (CSA of the hamstrings was significantly increased (+10%; P < 0.001 after LI-BFR. Thus, the addition of hamstrings strength training programme using LI-BFR during preseason is able to enhance both Hcon:Qcon and hamstrings CSA of professional soccer players with Hcon:Qcon imbalance.

  9. Soft-assembled Multilevel Dynamics of Tactical Behaviors in Soccer.

    Science.gov (United States)

    Ric, Angel; Torrents, Carlota; Gonçalves, Bruno; Sampaio, Jaime; Hristovski, Robert

    2016-01-01

    This study aimed to identify the tactical patterns and the timescales of variables during a soccer match, allowing understanding the multilevel organization of tactical behaviors, and to determine the similarity of patterns performed by different groups of teammates during the first and second halves. Positional data from 20 professional male soccer players from the same team were collected using high frequency global positioning systems (5 Hz). Twenty-nine categories of tactical behaviors were determined from eight positioning-derived variables creating multivariate binary (Boolean) time-series matrices. Hierarchical principal component analysis (PCA) was used to identify the multilevel structure of tactical behaviors. The sequential reduction of each set level of principal components revealed a sole principal component as the slowest collective variable, forming the global basin of attraction of tactical patterns during each half of the match. In addition, the mean dwell time of each positioning-derived variable helped to understand the multilevel organization of collective tactical behavior during a soccer match. This approach warrants further investigations to analyze the influence of task constraints on the emergence of tactical behavior. Furthermore, PCA can help coaches to design representative training tasks according to those tactical patterns captured during match competitions and to compare them depending on situational variables.

  10. Soft-assembled multilevel dynamics of tactical behaviors in soccer

    Directory of Open Access Journals (Sweden)

    Angel Ric

    2016-10-01

    Full Text Available This study aimed to identify the tactical patterns and the timescales of variables during a soccer match, allowing understanding the multilevel organization of tactical behaviors, and to determine the similarity of patterns performed by different groups of teammates during the first and second halves. Positional data from twenty professional male soccer players from the same team were collected using high frequency global positioning systems (5Hz. Twenty-nine categories of tactical behaviors were determined from eight positioning-derived variables creating multivariate binary (Boolean time-series matrices. Hierarchical principal component analysis was used to identify the multilevel structure of tactical behaviors. The sequential reduction of each set level of principal components revealed a sole principal component as the slowest collective variable, forming the global basin of attraction of tactical patterns during each half of the match. In addition, the mean dwell time of each positioning-derived variable helped to understand the multilevel organization of collective tactical behavior during a soccer match. This approach warrants further investigations to analyze the influence of task constraints on the emergence of tactical behavior. Furthermore, principal component analysis can help coaches to design representative training tasks according to those tactical patterns captured during match competitions and to compare them depending on situational variables.

  11. Effective Team Strategies: Developing "Game Sense" in Youth Soccer Programs

    Science.gov (United States)

    Hubball, Harry

    2006-01-01

    In this article, the author recommends that coaches develop effective team strategies with their players to get more out of individual players and make them into an effective sports team. This article identifies effective team strategies for offense and defense in soccer, provides coaches with diagnostic tool to assess the effectiveness of their…

  12. Microfracture in Football (Soccer) Players

    Science.gov (United States)

    Steadman, Richard J.

    2012-01-01

    Background: Little information is available on the results of microfracture in competitive football (soccer) players. We aimed to evaluate the efficacy of this technique to restore joint function to a level that allows return to this popular high-impact sport. Methods: This article provides an overview of the basic science and the current published scientific evidence for articular cartilage repair using the microfracture technique in elite football (soccer) athletes. In addition, the senior author documents his results in a case series of professional football (soccer) players treated with microfracture. Results: Twenty-one professional male soccer players underwent microfracture for knee articular cartilage defects. Nineteen players had isolated cartilage injuries, and 2 players had simultaneous anterior cruciate ligament injuries. Average age of the player was 27 years (range, 18-32 years). Twelve players (57%) had single defects, and 9 (43%) had multiple defects. All players complied with the postoperative rehabilitation program. Twenty players (95%) returned to professional soccer the season following microfracture surgery and continued to play for an average of 5 years (range, 1-13 years). Years of continued play inversely correlated with player age at the time of microfracture (r = -0.41). Conclusion: Articular cartilage repair with the microfracture technique followed by appropriate rehabilitation provides restoration of knee joint function in professional football (soccer) players with a high rate of return to football (soccer) and continued participation under the significant demands of professional football (soccer). Thorough understanding of the technical aspects, rehabilitation, and literature can help to optimize the results of microfracture in the athletic population. PMID:26069602

  13. Youth Sport Development through Soccer: An Evaluation of an After-School Program Using the TPSR Model

    Science.gov (United States)

    Cryan, Mark; Martinek, Thomas

    2017-01-01

    The Soccer Coaching Club program used the Teaching Personal and Social Responsibility (TPSR) model in an after-school soccer program for sixth grade boys between 11 and 12 years old in a local middle school. Soccer, as the featured physical activity, provided the "hook" for regular attendance. Desired outcomes included improved…

  14. The Practice of Sport Psychology: A Youth Coaches' Perspective

    OpenAIRE

    Barker, Stephanie; Winter, Stacy

    2014-01-01

    This research qualitatively documents youth sport coaches' perspectives of sport psychology and sport psychology consultants (SPCs) in the United Kingdom. Youth coaches are a unique population yet to be examined, despite their significance to the development of athletes. Semi-structured interviews were conducted with eight coaches who held a minimum of ten years experience with youth performers of a county to national level. Participants represented American football, hockey, soccer, and trac...

  15. Knee stability, athletic performance and sport-specific tasks in non-professional soccer players after ACL reconstruction: comparing trans-tibial and antero-medial portal techniques.

    Science.gov (United States)

    Tudisco, Cosimo; Bisicchia, Salvatore; Cosentino, Andrea; Chiozzi, Federica; Piva, Massimo

    2015-01-01

    a wrong position of bone tunnels, in particular on the femur, is one of the most frequent causes of a failed anterior cruciate ligament (ACL) reconstruction. Several studies demonstrated that drilling the femoral tunnel through the antero-medial portal (AMP) allows a more anatomical placement on the lateral femoral condyle and higher knee stability, compared to trans-tibial (TT) technique. The aim of this study was to retrospectively evaluate two groups of soccer players operated on for ACL reconstruction according to either one of these two techniques. two groups of non-professional soccer players operated on for a single bundle ACL reconstruction with hamstrings autograft using either a TT (20 patients) or an AMP (23 patients) technique were retrospectively evaluated with KT-1000 arthrometer, manual pivot shift test, isokinetic test, the incremental treadmill-running test, athletic and sport specific tasks, and knee scores (IKDC, Lysholm and KOOS). the AMP group showed better results at pivot shift test and KOOS, but lower flexion angles at single leg squat test. There were no differences in all the other considered outcomes. the better rotational stability of the knee achieved in AMP group did not lead to significantly better clinical and functional results in our patients. Case-control study.

  16. Effects of Sesame (Sesamum indicumL.) Supplementation on Creatine Kinase, Lactate Dehydrogenase, Oxidative Stress Markers, and Aerobic Capacity in Semi-Professional Soccer Players.

    Science.gov (United States)

    Barbosa, Carlos V da Silva; Silva, Alexandre S; de Oliveira, Caio V C; Massa, Nayara M L; de Sousa, Yasmim R F; da Costa, Whyara K A; Silva, Ayice C; Delatorre, Plínio; Carvalho, Rhayane; Braga, Valdir de Andrade; Magnani, Marciane

    2017-01-01

    Nutritional intervention with antioxidants rich foods has been considered a strategy to minimize the effects of overtraining in athletes. This experimental, randomized, and placebo-controlled study evaluated the effects of consumption of sesame ( Sesamum indicum L.) on muscle damage markers, oxidative stress, systemic inflammation, and aerobic performance in male semi-professional soccer players. Twenty athletes were randomly assigned to groups that received 40 g (two tablespoons) per day of sesame or a placebo during 28 days of regular training (exposed to routine training that includes loads of heavy training in the final half of the season). Before and after intervention, creatine kinase (CK), lactate dehydrogenase (LDH), malondialdehyde (MDA), superoxide dismutase (SOD), C-reactive protein (hs-CRP), and aerobic capacity were evaluated. Before intervention, a physiologic imbalance was noted in both groups related to CK and LDH levels. Sesame intake caused a reduction of CK (19%, p sesame consumption may reduce muscle damage and oxidative stress while improving the aerobic capacity in soccer players.

  17. Early Childhood Professional Development: Coaching and Coursework Effects on Indicators of Children's School Readiness

    Science.gov (United States)

    Pianta, Robert; Hamre, Bridget; Downer, Jason; Burchinal, Margaret; Williford, Amanda; LoCasale-Crouch, Jennifer; Howes, Carollee; La Paro, Karen; Scott-Little, Catherine

    2017-01-01

    Research Findings: Effects on children's school readiness were evaluated for 2 interventions focused on improving teacher-student interactions (coursework, coaching) implemented sequentially across 2 years. Teachers from public prekindergarten programs in 10 locations were assigned randomly to treatment or control conditions in each year.…

  18. Literacy Coaching: Suggestions for School Leaders

    Science.gov (United States)

    Toll, Cathy

    2009-01-01

    Some educators think of literacy coaches as teachers who help students refine the strategies they use to comprehend text, but "literacy coach" is more commonly used to describe an educator whose clients are teachers. In this capacity, literacy coaches provide job-embedded professional development that helps teachers build their capacity to make…

  19. The Effects of Comprehensive Warm-Up Programs on Proprioception, Static and Dynamic Balance on Male Soccer Players

    Science.gov (United States)

    Daneshjoo, Abdolhamid; Mokhtar, Abdul Halim; Rahnama, Nader; Yusof, Ashril

    2012-01-01

    Purpose The study investigated the effects of FIFA 11+ and HarmoKnee, both being popular warm-up programs, on proprioception, and on the static and dynamic balance of professional male soccer players. Methods Under 21 year-old soccer players (n = 36) were divided randomly into 11+, HarmoKnee and control groups. The programs were performed for 2 months (24 sessions). Proprioception was measured bilaterally at 30°, 45° and 60° knee flexion using the Biodex Isokinetic Dynamometer. Static and dynamic balances were evaluated using the stork stand test and Star Excursion Balance Test (SEBT), respectively. Results The proprioception error of dominant leg significantly decreased from pre- to post-test by 2.8% and 1.7% in the 11+ group at 45° and 60° knee flexion, compared to 3% and 2.1% in the HarmoKnee group. The largest joint positioning error was in the non-dominant leg at 30° knee flexion (mean error value = 5.047), (pproprioception at 45° and 60° knee flexion as well as static and dynamic balance in professional male soccer players. Data from this research may be helpful in encouraging coaches or trainers to implement the two warm-up programs in their soccer teams. PMID:23251579

  20. When middel managers are doing employee coaching

    DEFF Research Database (Denmark)

    Spaten, Ole Michael; Flensborg, Winnie

    2013-01-01

    Objectives: Until now, rather limited empirical research has been conducted as regards managers who coach their employees (Crabb, 2011). The aim of this research was to investigate the managers’ challenging and successful experience when coaching their employees and how these coaching sessions were...... assessed by their employees. Design: The overall study investigated 15 middle managers - from a major Danish nationwide company who were trained to coach by two coaching psychologists through theoretical presentations, individual coaching and peer coaching sessions with direct supervision (learning......-by-doing: Spaten, 2011b) - when they were coaching their 75 employees through an online survey and semi-structured interviews. Methods: Four middle managers and employees were interviewed after the intervention. Thematic analysis was chosen and elicited three main themes: (1) coaching skills; (2) professional...

  1. Executive functioning in highly talented soccer players.

    Directory of Open Access Journals (Sweden)

    Lot Verburgh

    Full Text Available Executive functions might be important for successful performance in sports, particularly in team sports requiring quick anticipation and adaptation to continuously changing situations in the field. The executive functions motor inhibition, attention and visuospatial working memory were examined in highly talented soccer players. Eighty-four highly talented youth soccer players (mean age 11.9, and forty-two age-matched amateur soccer players (mean age 11.8 in the age range 8 to 16 years performed a Stop Signal task (motor inhibition, the Attention Network Test (alerting, orienting, and executive attention and a visuospatial working memory task. The highly talented soccer players followed the talent development program of the youth academy of a professional soccer club and played at the highest national soccer competition for their age. The amateur soccer players played at a regular soccer club in the same geographical region as the highly talented soccer players and play in a regular regional soccer competition. Group differences were tested using analyses of variance. The highly talented group showed superior motor inhibition as measured by stop signal reaction time (SSRT on the Stop Signal task and a larger alerting effect on the Attention Network Test, indicating an enhanced ability to attain and maintain an alert state. No group differences were found for orienting and executive attention and visuospatial working memory. A logistic regression model with group (highly talented or amateur as dependent variable and executive function measures that significantly distinguished between groups as predictors showed that these measures differentiated highly talented soccer players from amateur soccer players with 89% accuracy. Highly talented youth soccer players outperform youth amateur players on suppressing ongoing motor responses and on the ability to attain and maintain an alert state; both may be essential for success in soccer.

  2. Executive functioning in highly talented soccer players.

    Science.gov (United States)

    Verburgh, Lot; Scherder, Erik J A; van Lange, Paul A M; Oosterlaan, Jaap

    2014-01-01

    Executive functions might be important for successful performance in sports, particularly in team sports requiring quick anticipation and adaptation to continuously changing situations in the field. The executive functions motor inhibition, attention and visuospatial working memory were examined in highly talented soccer players. Eighty-four highly talented youth soccer players (mean age 11.9), and forty-two age-matched amateur soccer players (mean age 11.8) in the age range 8 to 16 years performed a Stop Signal task (motor inhibition), the Attention Network Test (alerting, orienting, and executive attention) and a visuospatial working memory task. The highly talented soccer players followed the talent development program of the youth academy of a professional soccer club and played at the highest national soccer competition for their age. The amateur soccer players played at a regular soccer club in the same geographical region as the highly talented soccer players and play in a regular regional soccer competition. Group differences were tested using analyses of variance. The highly talented group showed superior motor inhibition as measured by stop signal reaction time (SSRT) on the Stop Signal task and a larger alerting effect on the Attention Network Test, indicating an enhanced ability to attain and maintain an alert state. No group differences were found for orienting and executive attention and visuospatial working memory. A logistic regression model with group (highly talented or amateur) as dependent variable and executive function measures that significantly distinguished between groups as predictors showed that these measures differentiated highly talented soccer players from amateur soccer players with 89% accuracy. Highly talented youth soccer players outperform youth amateur players on suppressing ongoing motor responses and on the ability to attain and maintain an alert state; both may be essential for success in soccer.

  3. Executive Functioning in Highly Talented Soccer Players

    Science.gov (United States)

    Verburgh, Lot; Scherder, Erik J. A.; van Lange, Paul A.M.; Oosterlaan, Jaap

    2014-01-01

    Executive functions might be important for successful performance in sports, particularly in team sports requiring quick anticipation and adaptation to continuously changing situations in the field. The executive functions motor inhibition, attention and visuospatial working memory were examined in highly talented soccer players. Eighty-four highly talented youth soccer players (mean age 11.9), and forty-two age-matched amateur soccer players (mean age 11.8) in the age range 8 to 16 years performed a Stop Signal task (motor inhibition), the Attention Network Test (alerting, orienting, and executive attention) and a visuospatial working memory task. The highly talented soccer players followed the talent development program of the youth academy of a professional soccer club and played at the highest national soccer competition for their age. The amateur soccer players played at a regular soccer club in the same geographical region as the highly talented soccer players and play in a regular regional soccer competition. Group differences were tested using analyses of variance. The highly talented group showed superior motor inhibition as measured by stop signal reaction time (SSRT) on the Stop Signal task and a larger alerting effect on the Attention Network Test, indicating an enhanced ability to attain and maintain an alert state. No group differences were found for orienting and executive attention and visuospatial working memory. A logistic regression model with group (highly talented or amateur) as dependent variable and executive function measures that significantly distinguished between groups as predictors showed that these measures differentiated highly talented soccer players from amateur soccer players with 89% accuracy. Highly talented youth soccer players outperform youth amateur players on suppressing ongoing motor responses and on the ability to attain and maintain an alert state; both may be essential for success in soccer. PMID:24632735

  4. Nutritional Knowledge of UK Coaches

    Science.gov (United States)

    Cockburn, Emma; Fortune, Alistair; Briggs, Marc; Rumbold, Penny

    2014-01-01

    Athletes obtain nutritional information from their coaches, yet their competency in this area is lacking. Currently, no research exists in the UK which has a different coach education system to many other countries. Therefore, the aim of this study was to evaluate the sports nutrition knowledge of UK coaching certificate (UKCC) level 2 and 3, hockey and netball qualified coaches. All coaches (n = 163) completed a sports nutrition questionnaire to identify: (a) if they provided nutritional advice; (b) their level of sport nutrition knowledge; and (c) factors that may have contributed to their level of knowledge. Over half the coaches provided advice to their athletes (n = 93, 57.1%), even though they were not competent to do so. Coaches responded correctly to 60.3 ± 10.5% of all knowledge questions with no differences between those providing advice and those who did not (p > 0.05). Those coaches who had undertaken formal nutrition training achieved higher scores than those who had not (p < 0.05). In conclusion, UK sports coaches would benefit from continued professional development in sports nutrition to enhance their coaching practice. PMID:24727434

  5. Nutritional Knowledge of UK Coaches

    Directory of Open Access Journals (Sweden)

    Emma Cockburn

    2014-04-01

    Full Text Available Athletes obtain nutritional information from their coaches, yet their competency in this area is lacking. Currently, no research exists in the UK which has a different coach education system to many other countries. Therefore, the aim of this study was to evaluate the sports nutrition knowledge of UK coaching certificate (UKCC level 2 and 3, hockey and netball qualified coaches. All coaches (n = 163 completed a sports nutrition questionnaire to identify: (a if they provided nutritional advice; (b their level of sport nutrition knowledge; and (c factors that may have contributed to their level of knowledge. Over half the coaches provided advice to their athletes (n = 93, 57.1%, even though they were not competent to do so. Coaches responded correctly to 60.3 ± 10.5% of all knowledge questions with no differences between those providing advice and those who did not (p > 0.05. Those coaches who had undertaken formal nutrition training achieved higher scores than those who had not (p < 0.05. In conclusion, UK sports coaches would benefit from continued professional development in sports nutrition to enhance their coaching practice.

  6. Coaching: evoking excellence in others

    National Research Council Canada - National Science Library

    Flaherty, James

    2005-01-01

    ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxv 1 The Foundation for Coaching . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Why Coaching Now?. . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

  7. Strategies for Building Peer Surgical Coaching Relationships.

    Science.gov (United States)

    Beasley, Heather L; Ghousseini, Hala N; Wiegmann, Douglas A; Brys, Nicole A; Pavuluri Quamme, Sudha R; Greenberg, Caprice C

    2017-04-19

    Peer surgical coaching is a promising approach for continuing professional development. However, scant guidance is available for surgeons seeking to develop peer-coaching skills. Executive coaching research suggests that effective coaches first establish a positive relationship with their coachees by aligning role and process expectations, establishing rapport, and cultivating mutual trust. To identify the strategies used by peer surgical coaches to develop effective peer-coaching relationships with their coachees. Drawing on executive coaching literature, a 3-part framework was developed to examine the strategies peer surgical coaches (n = 8) used to initially cultivate a relationship with their coachees (n = 11). Eleven introductory 1-hour meetings between coaching pairs participating in a statewide surgical coaching program were audiorecorded, transcribed, and coded on the basis of 3 relationship-building components. Once coded, thematic analysis was used to organize coded strategies into thematic categories and subcategories. Data were collected from October 10, 2014, to March 20, 2015. Data analysis took place from May 26, 2015, to July 20, 2016. Strategies and potentially counterproductive activities for building peer-coaching relationships in the surgical context to inform the future training of surgical coaches. Coaches used concrete strategies to align role and process expectations about the coaching process, to establish rapport, and to cultivate mutual trust with their coachees during introductory meetings. Potential coaching pitfalls are identified that could interfere with each of the 3 relationship-building components. Peer-nominated surgical coaches were provided with training on abstract concepts that underlie effective coaching practices in other fields. By identifying the strategies used by peer surgical coaches to operationalize these concepts, empirically based strategies to inform other surgical coaching programs are provided.

  8. Understanding the Work and Learning of High Performance Coaches

    Science.gov (United States)

    Rynne, Steven B.; Mallett, Cliff J.

    2012-01-01

    Background: The development of high performance sports coaches has been proposed as a major imperative in the professionalization of sports coaching. Accordingly, an increasing body of research is beginning to address the question of how coaches learn. While this is important work, an understanding of how coaches learn must be underpinned by an…

  9. Coaching with Parents in Early Intervention: An Interdisciplinary Research Synthesis

    Science.gov (United States)

    Kemp, Peggy; Turnbull, Ann P.

    2014-01-01

    The purpose of this article was to synthesize intervention studies using coaching with parents in early intervention with a focus on (a) definitions and descriptions of coaching with parents; (b) characteristics of families and coaches; (c) parameters such as settings, contexts, dosage, and professional development related to coaching; and (d)…

  10. Motivations, attitudes and behavioral intentions of soccer games spectators

    National Research Council Canada - National Science Library

    Amalia Zorzou; Julia Zorzou; Athanasios Laios; Evangelos Bebetsos; Dimitris Kobodietas; Nikolaos Apostolidis

    2014-01-01

      This present study investigated the psychological consuming behavior, the attitude and the motivations of professional soccer games spectators, aiming to increase the consumption of sports products...

  11. Coaching psykologi

    DEFF Research Database (Denmark)

    Spaten, Ole Michael; Imer, Anna; Palmer, Stephen

    2014-01-01

    Praksis-modellen er inspireret og udviklet på baggrund af den engelsksprogede Practice model. Modellen anvendes især som et centralt redskab for problemløsning i coaching og terapi. Men praksis modellen kan anvendes bredere og som redskab til at hjælpe coachée mod at opnå mål i coaching og især...

  12. Effects of Sesame (Sesamum indicum L.) Supplementation on Creatine Kinase, Lactate Dehydrogenase, Oxidative Stress Markers, and Aerobic Capacity in Semi-Professional Soccer Players

    Science.gov (United States)

    Barbosa, Carlos V. da Silva; Silva, Alexandre S.; de Oliveira, Caio V. C.; Massa, Nayara M. L.; de Sousa, Yasmim R. F.; da Costa, Whyara K. A.; Silva, Ayice C.; Delatorre, Plínio; Carvalho, Rhayane; Braga, Valdir de Andrade; Magnani, Marciane

    2017-01-01

    Nutritional intervention with antioxidants rich foods has been considered a strategy to minimize the effects of overtraining in athletes. This experimental, randomized, and placebo-controlled study evaluated the effects of consumption of sesame (Sesamum indicum L.) on muscle damage markers, oxidative stress, systemic inflammation, and aerobic performance in male semi-professional soccer players. Twenty athletes were randomly assigned to groups that received 40 g (two tablespoons) per day of sesame or a placebo during 28 days of regular training (exposed to routine training that includes loads of heavy training in the final half of the season). Before and after intervention, creatine kinase (CK), lactate dehydrogenase (LDH), malondialdehyde (MDA), superoxide dismutase (SOD), C-reactive protein (hs-CRP), and aerobic capacity were evaluated. Before intervention, a physiologic imbalance was noted in both groups related to CK and LDH levels. Sesame intake caused a reduction of CK (19%, p < 0.05), LDH (37%, p < 0.05), MDA (55%, p < 0.05) and hs-CRP (53%, p < 0.05) and increased SOD (14%, p < 0.05), vitamin A (25%, p < 0.05), and vitamin E (65%, p < 0.05) in the experimental group. These phenomena were accompanied by increased aerobic capacity (17%, p < 0.05). The placebo group showed an increase in CK (5%, p < 0.05) and no significant change in LDH, SOD or vitamin A. MDA levels decreased (21%, p < 0.05) and vitamin E increased (14%, p < 0.05) in the placebo group, but to a much lesser extent than in the experimental group. These results show that sesame consumption may reduce muscle damage and oxidative stress while improving the aerobic capacity in soccer players. PMID:28408889

  13. Enhancing collegiate women's soccer psychosocial and performance outcomes by promoting intrinsic sources of sport enjoyment

    National Research Council Canada - National Science Library

    Barnicle, Scott P; Burton, Damon

    2016-01-01

    .... A Division 1 collegiate women's soccer team was randomly assigned to treatment (n = 8) and control (n = 11) groups, equally distributed by academic year, position, and pre-season coach-evaluated starters and non-starts...

  14. Energy Intake and Expenditure of Professional Soccer Players of the English Premier League: Evidence of Carbohydrate Periodization.

    Science.gov (United States)

    Anderson, Liam; Orme, Patrick; Naughton, Robert J; Close, Graeme L; Milsom, Jordan; Rydings, David; O'Boyle, Andy; Di Michele, Rocco; Louis, Julien; Hambly, Catherine; Speakman, John Roger; Morgans, Ryland; Drust, Barry; Morton, James P

    2017-06-01

    In an attempt to better identify and inform the energy requirements of elite soccer players, we quantified the energy expenditure (EE) of players from the English Premier League (n = 6) via the doubly labeled water method (DLW) over a 7-day in-season period. Energy intake (EI) was also assessed using food diaries, supported by the remote food photographic method and 24 hr recalls. The 7-day period consisted of 5 training days (TD) and 2 match days (MD). Although mean daily EI (3186 ± 367 kcals) was not different from (p > .05) daily EE (3566 ± 585 kcals), EI was greater (p players readily achieve current guidelines for daily protein and fat intake, data suggest that CHO intake on the day before and in recovery from match play was not in accordance with guidelines to promote muscle glycogen storage.

  15. Study ing the influence and d imensions of Competitive Intelligence of Coaches on performance of current Soccer teams of The Iranian Premier League According to Component Balanced Scorecard (BSC

    Directory of Open Access Journals (Sweden)

    Amir Abbas BABAKIANPOUR

    2014-06-01

    Full Text Available T he aim of this study was to investigate the impact of coaches competitive intelligence on the football teams performance in the Iranian Premier League based on the Balanced Scorecard component (BSC.This prac tical research is a descriptive - correlational study in which population consisted of all head coaches and coaches from 16 Iranian Premier F ootball teams be tween 1392 - 1393. Two individual from each team were selected as coach and head coach and t he sample of 32 students were selected by census method. Questionnaire, 12 balls Fehy (2007 was used to measure competitive intelligence Coaches variables and ¬ 20 items of the questionnaire Neon (2003 was used to measure team performance. The results showed that the competitive intelligence team football coache s could affect performance and internal team performance will significantly increase. Also the team awareness c o ndition, technical knowledge, Opponents situation awareness, and awareness strategy of the coac hes had the greatest impact on team performance. In fact, coach es who having high level of competitive intellige nce will use the environmental threats as opportunities for improvement and uses it to enhance team performance.

  16. Narrative coaching

    DEFF Research Database (Denmark)

    Drake, David; Stelter, Reinhard

    2014-01-01

    keep individually and collectively telling ourselves that reinforce them. As such, they are at the core of what it means to be human – as refl ected in our biology, ontology, epistemology and cosmology – and a natural medium for use in coaching. Narrative coaches are, therefore, keenly interested...

  17. The Youth Soccer Coaches’ Visions and Thoughts of Leader Support

    Directory of Open Access Journals (Sweden)

    Hertting Krister

    2016-06-01

    Full Text Available The Objectives: The European Commission has highlighted the use of sports as an important venue for engaging citizens in health-enhancing activities, physical activity, volunteerism and active citizenship. Coaching is a central component of sports for children and youth, but there is little research on the promotion of sports coaches’ health. In the light of this gap, the aim of this paper was to elucidate youth soccer coaches’ visions and thoughts regarding leadership support from clubs and soccer associations.

  18. Psychological Characteristics in Talented Soccer Players – Recommendations on How to Improve Coaches’ Assessment

    OpenAIRE

    Lisa Musculus; Babett H. Lobinger

    2018-01-01

    Psychological characteristics, including personality traits and psychological skills, have been shown to be relevant predictors of soccer performance. In research, general and sport specific standardized self-report questionnaires have been applied in psychological diagnostics of sports talent. However, with regard to the assessment of psychological characteristics of talented soccer players, a gap between research and practice is apparent. While soccer clubs often ask their coaches to assess...

  19. The Mindful Coach Seven Roles for Facilitating Leader Development

    CERN Document Server

    Silsbee, Doug

    2010-01-01

    Written for executive coaches, teachers, and other development professionals, the book explores the  seven roles or "Voices" that coaches assume while working with a client. The "Voices" are: Master, Partner, Investigator, Reflector, Teacher, Guide and Contractor. Silsbee illuminates the dynamic relationship between these roles, and integrates them in an intelligent roadmap for any coaching conversation. This book offers a helpful resource for internal and external executive coaches as well as leader coaches, consultants, trainers, teachers, and facilitators.

  20. Detection of testosterone administration based on the carbon isotope ratio profiling of endogenous steroids: international reference populations of professional soccer players.

    Science.gov (United States)

    Strahm, E; Emery, C; Saugy, M; Dvorak, J; Saudan, C

    2009-12-01

    The determination of the carbon isotope ratio in androgen metabolites has been previously shown to be a reliable, direct method to detect testosterone misuse in the context of antidoping testing. Here, the variability in the 13C/12C ratios in urinary steroids in a widely heterogeneous cohort of professional soccer players residing in different countries (Argentina, Italy, Japan, South Africa, Switzerland and Uganda) is examined. Carbon isotope ratios of selected androgens in urine specimens were determined using gas chromatography/combustion/isotope ratio mass spectrometry (GC-C-IRMS). Urinary steroids in Italian and Swiss populations were found to be enriched in 13C relative to other groups, reflecting higher consumption of C3 plants in these two countries. Importantly, detection criteria based on the difference in the carbon isotope ratio of androsterone and pregnanediol for each population were found to be well below the established threshold value for positive cases. The results obtained with the tested diet groups highlight the importance of adapting the criteria if one wishes to increase the sensitivity of exogenous testosterone detection. In addition, confirmatory tests might be rendered more efficient by combining isotope ratio mass spectrometry with refined interpretation criteria for positivity and subject-based profiling of steroids.

  1. Brief report: Behavioral risk factors for youth soccer (football) injury.

    Science.gov (United States)

    Schwebel, David C; Banaszek, Mark M; McDaniel, McCall

    2007-05-01

    By most reports, soccer (football) is among the most played and most popular sports in the world. This study prospectively examined behavioral risk factors for youth soccer injury. Sixty 11- and 12-year-old boys who played on six teams in a suburban recreational soccer league were followed over the course of a season. Six predictors were assessed prior to the start of the season via self-report measures from coaches, parents, and the players themselves: inhibition, aggression, risk-taking, skill, experience playing soccer, and physical size. All games were videotaped, and tapes were reviewed to record players' collisions with other players, fouls, falls during the course of play, and injuries. Greater skill and less experience playing soccer best predicted injury risk. Inhibition, aggression, and risk-taking did not emerge as predictors. Results are discussed with respect to previous research in youth sport and general pediatric injury risk.

  2. Behavioral Coaching

    OpenAIRE

    Seniuk, Holly A.; Witts, Benjamin N.; Williams, W Larry; Ghezzi, Patrick M

    2013-01-01

    The term behavioral coaching has been used inconsistently in and outside the field of behavior analysis. In the sports literature, the term has been used to describe various intervention strategies, and in the organizational behavior management literature it has been used to describe an approach to training management personnel and staff. This inconsistency is problematic in terms of the replication of behavioral coaching across studies and aligning with Baer, Wolf, and Risley's (1968) techno...

  3. Talent identification and recruitment in youth soccer: Recruiter’s perceptions of the key attributes for player recruitment

    National Research Council Canada - National Science Library

    Paul Larkin; Donna O’Connor

    2017-01-01

    ... of representative soccer in Australia (i.e., Under 13 years). Furthermore, we also aimed to describe the current methods youth coaches and recruiters use to assess and identify these attributes in youth players...

  4. The New Educational Practice of Coaching, and the New Profession of the Coach

    Science.gov (United States)

    Klarin, Mikhail

    2015-01-01

    The article provides a detailed description of coaching as a form of human development and professional activities. The article was written in the midst of developing professional standards of coaching in the Russian Federation. [This article was translated by Peter Golub.

  5. Mental toughness in soccer

    DEFF Research Database (Denmark)

    Diment, Gregory Michael

    2014-01-01

    In the past decade mental toughness has been discussed as a significant factor in performance in elite sport. Few studies have explored mental toughness from a behavioral perspective, and no comprehensive lists of mental toughness behaviors have been developed. The aim of the study was to produce...... a systematic observation checklist of mental toughness behavior in professional soccer. Consistent with existing studies, the results created a systematic observation instrument containing 15 mental toughness behaviors. Practical implications include goal-setting, game analysis and self-modeling interventions...

  6. Illuminating Growth and Struggles Using Mixed Methods: Practice-Based Professional Development and Coaching for Differentiating SRSD Instruction in Writing

    Science.gov (United States)

    McKeown, Debra; Brindle, Mary; Harris, Karen R.; Graham, Steve; Collins, Alyson A.; Brown, Megan

    2016-01-01

    In this mixed methods study, qualitative, quantitative, and single-case methods were combined to provide a comprehensive investigation of teacher and student outcomes following practice-based professional development (PBPD) for self-regulated strategy development (SRSD) in writing. Qualitative observations were used to determine outcomes among the…

  7. Soccer; Speedball; Flag Football, June 1976--June 1978. NAGWS Guide.

    Science.gov (United States)

    Messing, Anne, Ed.; And Others

    This guide for soccer, speedball, and flag football is one in a series of guides for 22 sports published by the National Association for Girls and Women in Sport (NAGWS). Guides contain information on NAGWS-approved playing rules, officials' ratings, articles on teaching, coaching and organization, rules governing national championships,…

  8. Factors influencing the implementation of soccer injury prevention ...

    African Journals Online (AJOL)

    The results showed that soccer players, coaches and team leaders were generally aware of the occurrence of injuries, their causes, risk factors and prevention. Injury prevention strategies such as the use of protective devices, water intake and carbohydrate consumption were performed more in competition than in training ...

  9. Injuries among female Rwandan soccer players: Return-to-play ...

    African Journals Online (AJOL)

    Soccer or football is regarded as an increasingly popular sport for women. Several studies highlighted the increased injury rate proportionally to its increased participation. Researchers are of the opinion that some injuries might not be regarded as serious by either the player or the coach thus leading to premature return to ...

  10. Collegiate coaches' knowledge of the female athlete triad in relation to sport type.

    Science.gov (United States)

    Frideres, Jillian E; Mottinger, Sue G; Palao, José M

    2016-03-01

    The purpose of this study was to determine what coaches of female athletes know about the three components of the female athlete triad with regard to type of sport coached and the characteristics of the coach. The sample consisted of 309 NCAA Division I coaches of female athletes in the sports of: sports with subjective scoring of performance (gymnastics and diving), low body weight sports (cross country and rowing), revealing or fitted clothing (volleyball and swimming), and other (soccer and basketball). An original, self-report questionnaire, and a 4-point Likert scale to measure confidence in answer was used. The variables were: knowledge, confidence, and coach's characteristics (coach's gender, degree held, years of experience in coaching females, continuing education participation specific to the triad and triad components, and type of sport coached). Coaches of low body weight sports scored significantly higher than both coaches of sports requiring fitted clothing and "other" sports in the overall score. They further had significantly more confidence in their answers than coaches of "other" sports. No significant differences in the overall score in any of the types of sport or total values were found regarding gender, experience, and degree. Coaches who had received training about the triad or its components scored significantly higher than coaches who did not receive training. The results demonstrated a lack of information among coaches and that participating in formative training can help to reduce this problem. The results found can help in the design of continuing education for coaches.

  11. Nonoperative Management, Rehabilitation, and Functional and Clinical Progression of Osteitis Pubis/Pubic Bone Stress in Professional Soccer Players: A Case Series.

    Science.gov (United States)

    McAleer, Stephen S; Lippie, Ed; Norman, Darcy; Riepenhof, Helge

    2017-09-01

    Study Design Case series. Background Pubic bone stress (PBS) is a common acute or chronic response of the pelvis in sports where sprinting, kicking, twisting, and cutting are the dominant movements. There are few nonoperative rehabilitation strategies for the condition reported in the literature, and the outcome of conservative treatment has not been documented. Case Description Five professional and academy soccer players complaining of pubic symphysis pain, confirmed as PBS on magnetic resonance imaging and objective assessment, were treated with a nonoperative rehabilitation program that featured functional and clinical objective markers as progression criteria. Interventions in the acute phase included pharmacological and physical therapeutic modalities to reduce pain initially. Rehabilitation management focused on improving range of motion at the hips and thorax, adductor strengthening, trunk and lumbopelvic stability, gym-based strength training, and field-based rehabilitation and conditioning. Clinical follow-up was performed at least 8 months following return to play. Outcomes All players demonstrated reduced or resolved pain, increased adductor squeeze strength, and return to pain-free training and match play. Return-to-training time averaged 40.6 days (range, 30-60 days) and return to play averaged 49.4 days (range, 38-72 days) within the 5 players. At final follow-up (mean, 29.6 months; range, 16-33 months), there had been no recurrences. Discussion This report of 5 cases suggests that a nonoperative protocol, using clinical and functional progression criteria, may be successful in rehabilitating athletes with PBS for return to sport within 11 weeks. Level of Evidence Therapy, level 4. J Orthop Sports Phys Ther 2017;47(9):683-690. Epub 3 Aug 2017. doi:10.2519/jospt.2017.7314.

  12. Comparação de indicadores físicos e fisiológicos entre atletas profissionais de futsal e futebol Comparison of physical and physiological indicators between professional futsal and soccer athletes

    Directory of Open Access Journals (Sweden)

    Renan Felipe Hartmann Nunes

    2012-03-01

    Full Text Available Muitos profissionais do esporte periodizam o treinamento do futebol e do futsal de forma semelhante. Todavia, pouco se conhece das respostas físicas e fisiológicas dos atletas de futsal. Esse estudo comparou perfil antropométrico, capacidade aeróbia e produção de potência entre atletas profissionais de futsal e futebol. Onze jogadores de futsal (idade 24,1±2,4anos e 21 jogadores de futebol (idade 22,6±3,6anos do sexo masculino submeteram-se a duas sessões experimentais: (I avaliação antropométrica, teste de esforço máximo em esteira e (II teste de velocidade de 30 metros (capacidade de sprint repetido, CSR. Empregou-se teste t para amostras independentes, permitindo verificar possíveis diferenças entre as modalidades (pMany professional sports training periodize soccer and futsal similarly. However, little is known about physical and physiological responses of futsal players. This study compared anthropometric, aerobic capacity and power production among professional indoor and outdoor soccer players. Eleven futsal players (age 24.1±2.4 years and 21 soccer players (age 22.6±3.6 years males underwent two experimental sessions: (i anthropometric measurements, maximal effort test treadmill and (II test speed of 30 meters (repeated sprint ability, CSA. It was applied t-test for independent samples to verify possible differences between the modalities (p>0,05. The futsal players showed higher values of HR VT (177,2±10 e 67,1±10,8 bpm VO2max ;VO2VT; %VO2max (62,5±4,3 e 52,1±4,6; 58,7±5,6 e 43,1±4,6; 76±8,4 e 93,9±5,3 ml·kg-1·min-1 compared with soccer players, respectively. These results demonstrate the need for specific methods of training for outdoor and indoor soccer.

  13. Angry Parents Place Coaches in Tough Spots

    Science.gov (United States)

    Gehring, John

    2005-01-01

    Coaches and school administrators have been threatened, verbally abused, or physically assaulted in school sports incidents. Threats to coaches arise in a sports atmosphere that many observers say is marked by heightened incivility from the professional ranks on down to inter- scholastic and youth leagues. The demanding, coarser attitudes of…

  14. A Multidisciplinary Framework of Instructional Coaching

    Science.gov (United States)

    Kurz, Alexander; Reddy, Linda A.; Glover, Todd A.

    2017-01-01

    Across a wide variety of disciplines, coaching has become the universal practice for improving the professional performance of individuals and, consequently, the effectiveness of their organizations. Despite these shared outcomes, the coaching of individuals such as executives, athletes, and teachers features a variety of approaches, each with its…

  15. Coordination of soccer players during preseason training.

    Science.gov (United States)

    Tessitore, Antonio; Perroni, Fabrizio; Cortis, Cristina; Meeusen, Romain; Lupo, Corrado; Capranica, Laura

    2011-11-01

    This study aimed to verify whether coordination improves as a result of a preseason soccer training. During 5 experimental sessions (days 1, 6, 11, 15, and 19), 16 semiprofessional male soccer players (22.0 ± 3.6 years) were administered 3 specific soccer tests (speed dribbling, shooting a dead ball, and shooting from a pass) and an interlimb coordination test (total duration of a trial: 60 seconds), consisting of isodirectional and nonisodirectional synchronized (1:1 ratio) hand and foot flexions and extensions at an increasing velocity of execution (80, 120, and 180 b·min(-1)). Furthermore, subjective ratings were monitored to assess the recovery state (RestQ) of the players, their perceived exertion (rating of perceived exertion [RPE]) for the whole body, and the perceived muscle pain (rating of muscle pain [RMP]) for the lower limbs and the internal training load by means of the session-RPE method. The ratios between post and pretraining RPE and RMP increased only during the first 2 experimental sessions and decreased after the second week of the training camp (p = 0.001). The Rest-Q showed increases (p fatigue, physical complaints dimensions. Throughout the preseason, the players improved their speed dribbling (p = 0.03), Shooting from a Pass (p = 0.02), and interlimb coordination (p coordination tests succeeded in discriminating coordination in soccer players and could integrate field test batteries during the whole soccer season, because they were easily and inexpensively administrable by coaches.

  16. Endoscopic debridement and fibrin glue injection of a chronic Morel-Lavallée lesion of the knee in a professional soccer player: A case report and literature review.

    Science.gov (United States)

    Koc, Baris B; Somorjai, Nicolaas; P M Kiesouw, Egid; Vanderdood, Kurt; Meesters-Caberg, Marleen; Draijer, Frits W; Jansen, Edwin J P

    2017-01-01

    A Morel-Lavallée lesion is a post-traumatic closed degloving injury of soft tissue. The lesion is due to a shearing trauma with separation of subcutaneous tissue from underlying fascia. When conservative treatment fails, surgical treatment is imperative. Commonly, open drainage and debridement is performed. This case report describes a Morel-Lavallée lesion of the knee in a professional soccer player who was successfully treated with endoscopic debridement and fibrin glue injection after failure of conservative management. This method achieves the goal of an open surgical debridement without exposing patients to an increased morbidity. Copyright © 2016. Published by Elsevier B.V.

  17. Prognostic factors for musculoskeletal injury identified through medical screening and training load monitoring in professional football (soccer): a systematic review.

    Science.gov (United States)

    Hughes, T; Sergeant, J C; Parkes, M; Callaghan, M

    2017-05-10

    To identify prognostic factors and models for spinal and lower extremity injuries in adult professional/elite football players from medical screening and training load monitoring processes. The MEDLINE, AMED, EMBASE, CINAHL Plus, SPORTDiscus electronic bibliographic databases and the Cochrane Database of Systematic Reviews were searched from inception to July 2016. Searches were limited to original research, published in peer reviewed journals of any language. The Quality in Prognostic Studies (QUIPS) tool was used for appraisal and the modified GRADE approach was used for synthesis. Prospective and retrospective cohort study designs of spinal and lower extremity injury incidence were found from populations of adult professional/elite football players, between 16 and 40 years. Non-football or mixed sports were excluded. 858 manuscripts were identified. Removing duplications left 551 studies, which were screened for eligibility by title and abstract. Of these, 531 studies were not eligible and were excluded. The full text of the remaining 20 studies were obtained; a further 10 studies were excluded. 10 studies were included for appraisal and analysis, for 3344 participants. Due to the paucity and heterogeneity of the literature, and shortcomings in methodology and reporting, the evidence is of very low or low quality and therefore cannot be deemed robust enough to suggest conclusive prognostic factors for all lower limb musculoskeletal injury outcomes identified. No studies were identified that examined spinal injury outcomes or prognostic models.

  18. Division I athletes' attitudes toward and preferences for male and female strength and conditioning coaches.

    Science.gov (United States)

    Magnusen, Marshall J; Rhea, Deborah J

    2009-07-01

    The purpose of this study was to examine whether male and female Division I team sport athletes prefer same-sex or opposite-sex strength and conditioning coaches. Participants included 476 (male = 275, female = 201) National Collegiate Athletic Association Division I collegiate football, soccer, and volleyball athletes; the men were from football programs and the women were from soccer and volleyball programs. The Attitudes of Athletes toward Male versus Female Coaches Questionnaire was used to assess the attitudes and feelings of male and female athletes toward the gender of their strength coach (29). The results of a 2 x 2 multivariate analysis of variance (athlete gender x coach gender) revealed that the male athletes (all football players) were less comfortable with a female strength coach in all regards and preferred to have a male strength coach (p gender preference, nor did they have any negative attitudes toward a strength coach. The women would be productive training with any qualified strength coach, whereas the men would prefer working with a male strength coach no matter how qualified the female coach might be. As a result of this study, one suggestion is for male athletes to be exposed to female strength coaches much earlier in their sport experience. This might help reduce gender bias later in their athletic careers.

  19. Ledelsesbaseret coaching

    DEFF Research Database (Denmark)

    Molly-Søholm, Thorkil; Storch, Jacob; Juhl, Andreas

    Hvordan coacher man som leder? Når jeg sidder i kursuslokalet og træner spørgeteknikker, går det fint, men når jeg skal bruge det hjemme i min organisation, fungerer det slet ikke. Skal coaching kunne fungere som et ledelsesværktøj, må det tilpasses de spilleregler, der gælder for arbejdskonteksten...... - det er udgangspunktet for denne bog. Forfatternes argument er, at der er sket en kortslutning i den måde, coaching er overført fra idrættens og terapiens verden til den organisatoriske hverdag. I denne bog giver forfatterne indgående beskrivelser af coachingværktøjer omsat til en ledelsesmæssig...... kontekst, og de byder på en række praktiske anvisninger til, hvordan man tilegner sig en coachende ledelsesstil. Ledelsesbaseret coaching henvender sig til ledere på alle niveauer, der ønsker at bringe coaching et skridt videre ind i organisationerne som en ledelsesform, der rummer stort potentiale...

  20. Coaching in Early Mathematics.

    Science.gov (United States)

    Germeroth, Carrie; Sarama, Julie

    2017-01-01

    Falling scores in math have prompted a renewed interest in math instruction at early ages. By their own admission, early childhood educators are generally underprepared and not always comfortable teaching math. Professional development (PD) in early mathematics is widely considered a main way to increase teachers' skills and efficacy (e.g., Guskey, 2000; Hyson & Woods, 2014; Munby, Russell, & Martin, 2001; Piasta, Logan, Pelatti, Capps, & Petrill, 2015; Richardson & Placier, 2001; Sarama, Clements, Wolfe, & Spitler, 2016; Sarama & DiBiase, 2004; Zaslow, 2014). However, it has been documented that stand-alone PD is not as effective in changing practice (e.g., Biancarosa & Bryk, 2011; Garet et al., 2008; Guskey, 2000; Hyson & Woods, 2014; Institute of Medicine and National Research Council, 2015; Joyce & Showers, 2002; Zaslow, 2014). Site-embedded ongoing support in the form of coaching or mentoring has been shown to be critical for successful implementation (Neuman & Cunningham, 2009; Powell, Diamond, Burchinal, & Koehler, 2010). In this chapter, we describe coaching models and abstract characteristics of effective coaching from the research. With this background, we provide an in-depth view of the coaching aspect of two large empirical studies in early mathematics. We introduce the theoretical framework from which the coaching models for these projects were developed and describe the research on which they were based. We then summarize how the planned models were instantiated and challenges to their implementation within each project. In the final section, we summarize what we have learned and described implications and challenges for the field. © 2017 Elsevier Inc. All rights reserved.

  1. The job security of coaches | Singh | South African Journal for ...

    African Journals Online (AJOL)

    The proliferation of international sport competitions has drawn considerable attention to coaching. However, it appears that when a team loses, the first solution seems to be to fire the coach. This study thus aims to investigate the job security of professional coaches in South Africa. It attempts to identify the problems ...

  2. Literacy Coaching in the United States: Implications for Taiwan

    Science.gov (United States)

    Lo, Mei-lan

    2012-01-01

    Literacy coaching has become a popular professional development approach in the United States over the last decade. To date, there has been little research on the different lived experiences and challenges of literacy coaches working in different contexts. Furthermore, research findings regarding the effectiveness of literacy coaching are…

  3. Understanding Relationship: Maximizing the Effects of Science Coaching

    Science.gov (United States)

    Anderson, Ruth; Feldman, Sue; Minstrell, Jim

    2014-01-01

    There is growing empirical evidence that instructional coaching can help teachers transfer their learning from professional trainings (e.g., new strategies) to classroom practice and that coaching promotes greater collaboration and reflection among teachers. At the same time, however, research on the effectiveness of particular coaching models and…

  4. Courage to Love: Coaching Dialogically toward Teacher Empowerment

    Science.gov (United States)

    Wall, Heather; Palmer, Michelle

    2015-01-01

    Instructional coaches continue to be an important part of school reform and professional development, and yet few studies have examined the impact of the language coaches use when working with teachers. The authors work to contribute towards filling this gap by describing a self-study examining their own language as instructional coaches and its…

  5. Should professional development include analyzing and coaching ways of speaking during inquiry-based science instruction in elementary classrooms?

    Science.gov (United States)

    van Zee, Emily H.

    2009-12-01

    In this commentary, I first consider what Oliveira defines inquiry-based science instruction to be. Next I discuss what the discourse practices are that he is advocating. Then I examine what he presents as evidence of changes in two teachers' discourse practices due to a summer institute and how their pragmatic awareness seems to have been enhanced through institute activities. Finally I ponder whether, when, how, and why professional development should include a focus on ways of speaking during inquiry-based science instruction.

  6. RELATION OF COACHING BEHAVIOR AND ROLE AMBIGUITY

    Directory of Open Access Journals (Sweden)

    Karamousalidis G.

    2010-08-01

    Full Text Available The purpose of this research was to investigate the relationship between coaching behavior and role ambiguity in defensive responsibilities using interdependent Greek sport teams. Athlete perceptions of role ambiguity (defense were assessed using a questionnaire developed by Beauchamp, Bray, Eys and Carron (2002 andcoaching behavior was assessed using the Coaching Behavior Questionnaire, (Williams, et. al., 2003. The sample consisted of 409 athletes of basketball, volleyball, handball and soccer. Confirmatory factor analysis provided the construct validity of the questionnaires and correlations among the scales confirmed construct validity. The implications of the results are discussed and future research should continue to investigate the multidimensional models of both coaching behavior and role ambiguity in sport settings.

  7. The future of coaching as a profession

    DEFF Research Database (Denmark)

    Lane, David A.; Stelter, Reinhard; Rostron, Sunny Stout

    2010-01-01

    to advocate the professionalisation of the industry to ensure the quality of coaching services. Coaching as a form of practice is now widely adopted, although recognition as a profession remains contentious and patchy with different jurisdictions taking contrary views on its legitimacy. A growing awareness...... of the potential benefits to the industry of professional status has led to participation in international dialogues, such the Global Convention on Coaching (GCC) and the International Coaching Research Forum (ICRF). The GCC was established with the explicit aim of promoting consultation and exploration of areas...

  8. Handball coaches' perceptions about the value of working competences according to their coaching background.

    Science.gov (United States)

    Mesquita, Isabel; Borges, Mario; Rosado, Antonio; Souza, Adriano De

    2011-01-01

    The purpose of this study was to analyze the value attributed to given working competences, by Portuguese handball coaches according to their coaching background, certification level, coaching experience, and level of education. A sample of 207 handball coaches responded to a questionnaire which included demographic characteristics and a scale focused on perceptions of the level of importance attributed to working competences. Data analysis included an exploratory factorial analysis applying Maximum Likelihood Factoring (MLF) and Oblimin rotation. These factors were submitted to a One-way ANOVA and Tukey's post hoc multiple comparisons to analyse coaches' perceptions according to their coaching background. A six factor solution was found where three major domains of competences were highlighted; the first one related to training and competition (e.g. planning and conducting the training, team administration in competition, annual and multi-annual planning, and coaching methodology); the second one related to social and cultural issues and management (e.g. implementation of youth sport development projects, team leadership and coach education) and the third one related to the cognitive background (meta-cognitive competences). The importance ascribed to some working competences was influenced by their coaching experience and certification level. Highly experienced and qualified coaches perceived competences of everyday practice, social, cultural and management issues related to training and competition as more important than the other coaches. This study suggests the need to consider some working competences, until now not explicitly present in the Portuguese coaching education curriculum which could enable coaches to choose the best way to practice/work in a manner that will foster and support their professional development. Key pointsThree major domains of competences were highlighted by Portuguese handball coaches. The first one related to training and competition

  9. Six fundamental principles that facilitates the transition from junior to professional in football: An example from the Danish Premier League

    DEFF Research Database (Denmark)

    Larsen, Carsten Hvid

    The transition from talented youth level to professional level is considered to be the most difficult and complex transition in sports. Literature in career transitions highlights that a match between an athlete’s resources and the demands of a transition will allow an athlete to enjoy a successful...... transitions in a professional football (soccer) club in Denmark. Insights are provided into delivery of workshops, the supervision of the coaches, on pitch training, evaluation of the program and integrating sport psychology as a part of the culture in the club. First, findings highlight that the practitioner...

  10. Injuries in male and female semi-professional football (soccer) players in Nigeria: prospective study of a National Tournament.

    Science.gov (United States)

    Owoeye, Oluwatoyosi Babatunde Alex; Aiyegbusi, Ayoola Ibifubara; Fapojuwo, Oluwaseun Akinleye; Badru, Oluwaseun Abdulganiyu; Babalola, Anike Rasheedat

    2017-03-21

    Research on the epidemiology of football injuries in Africa is very sparse despite its importance for injury prevention planning in a continent with limited sports medicine resources. The vast majority of studies available in literature were conducted in Europe and only a very few studies have prospectively reported the pattern of football injury in Africa. The purpose of this study was to evaluate the incidence and pattern of injuries in a cohort of male and female semi-professional football players in Nigeria. A prospective cohort design was conducted, in which a total of 756 players with an age range of 18-32 years (356 males and 300 females) from 22 different teams (12 male and 10 female teams), were prospectively followed in a National Football Tournament. Physiotherapists recorded team exposure and injuries. Injuries were documented using the consensus protocol for data collection in studies relating to football injury surveillance. An overall incidence of 113.4 injuries/1000 h (95% CI 93.7-136.0) equivalent to 3.7 injuries/match and time-loss incidence of 15.6 injuries/1000 h were recorded for male players and 65.9 injuries/1000 h (95% CI 48.9-86.8) equivalent to 2.2 injuries/match and time-loss incidence of 7.9 injuries/1000 h were recorded for female players. Male players had a significantly higher risk of injuries [IRR = 1.72 (95% CI 1.23-2.45)]. Injuries mostly affected the lower extremity for both genders (n = 81, 70% and n = 31, 62% for males and females respectively). Lower leg contusion (n = 22, 19%) and knee sprain (n = 9, 18%) were the most common specific injury types for male and female players respectively. Most of the injuries were as a result of contact with another player (n = 102, 88%-males; n = 48, 96%-females). Time-loss injuries were mostly estimated as minimal (n = 11, 69%) for male players and severe (n = 4, 66%) for female players. The overall incidence of injuries among Nigerian semi-professional football

  11. Does "Word Coach" Coach Words?

    Science.gov (United States)

    Cobb, Tom; Horst, Marlise

    2011-01-01

    This study reports on the design and testing of an integrated suite of vocabulary training games for Nintendo[TM] collectively designated "My Word Coach" (Ubisoft, 2008). The games' design is based on a wide range of learning research, from classic studies on recycling patterns to frequency studies of modern corpora. Its general usage…

  12. High injury incidence in adolescent female soccer.

    Science.gov (United States)

    Clausen, Mikkel Bek; Zebis, Mette Kreutzfeldt; Møller, Merete; Krustrup, Peter; Hölmich, Per; Wedderkopp, Niels; Andersen, Lars Louis; Christensen, Karl Bang; Thorborg, Kristian

    2014-10-01

    Previous studies report varying rates of time-loss injuries in adolescent female soccer, ranging from 2.4 to 5.3 per 1000 athlete-exposures or 2.5 to 3.7 per 1000 hours of exposure. However, these studies collected data using traditional injury reports from coaches or medical staff, with methods that significantly underestimate injury rates compared with players' self-reports. The primary aim was to investigate the injury incidence in adolescent female soccer using self-reports via mobile telephone text messaging. The secondary aim was to explore the association between soccer exposure, playing level, and injury risk. Descriptive epidemiology study and cohort study; Level of evidence, 2 and 3. During a full adolescent female soccer season in Denmark (February-June 2012), a population-based sample of 498 girls aged 15 to 18 years was included in the prospective registration of injuries. All players were enrolled on a team participating in Danish Football Association series. Soccer injuries and exposure were reported weekly by answers to standardized text message questions, followed by individual injury interviews. Soccer exposure and playing levels were chosen a priori as the only independent variables of interest in the risk factor analyses. Injury rates and relative risks were estimated using Poisson regression. Generalized estimation equations were used to take into account that players were clustered within teams. There were 498 players who sustained a total of 424 soccer injuries. The incidence of injuries was 15.3 (95% CI, 13.1-17.8), the incidence of time-loss injuries was 9.7 (95% CI, 8.2-11.4), and the incidence of severe injuries was 1.1 (95% CI, 0.7-1.6) per 1000 hours of soccer exposure. Higher average exposure in injury-free weeks was associated with a lower injury risk (P value for trend soccer is high, and this includes many severe injuries. Players with low soccer participation (≤1 h/wk) have a significantly higher injury risk compared with players

  13. Coaching relationship - and beyond

    DEFF Research Database (Denmark)

    Spaten, Ole Michael; O'Broin, Alanna; Løkken, Lillith Olesen

    2016-01-01

    In the coaching context of an ongoing search for evidence-based research, and increasing interest in the ‘active ingredients’ of coaching the impetus for ‘the coaching relationship – and beyond’ was the quest for deeper understanding of the coaching relationship as well as its influence on the ou......In the coaching context of an ongoing search for evidence-based research, and increasing interest in the ‘active ingredients’ of coaching the impetus for ‘the coaching relationship – and beyond’ was the quest for deeper understanding of the coaching relationship as well as its influence...... measures from the existing coachées’ satisfaction evaluation metrics; and finally (d) an overview of coaching relationship research in the context of prevailing assumptions and issues in coaching, offering implications for future coaching research and coaching practice....

  14. Acute Achilles Paratendinopathy following Major Injury of the Crural Fascia in a Professional Soccer Player: A Possible Correlation?

    Directory of Open Access Journals (Sweden)

    Gabriele Mattiussi

    2016-01-01

    Full Text Available Background. The anatomy and mechanical properties of the Crural Fascia (CF, the ubiquitous connective tissue of the posterior region of the leg, have recently been investigated. The most important findings are that (i the CF may suffer structural damage from indirect trauma, (ii structural changes of the CF may affect the biomechanics of tissues connected to it, causing myofascial pain syndromes, and (iii the CF is in anatomical continuity with the Achilles paratenon. Consistent with these points, the authors hypothesize that the onset of acute Achilles paratendinopathy may be related to histological and biomechanical changes of the CF. Case Presentation. A professional male football player suffered an isolated injury of the CF, interposed between the soleus and medial gastrocnemius (an atypical site of injury with structural connective integrity of the muscles. After participating in the first official match, two and a half months after the trauma, he has unexpectedly demonstrated the clinical picture of acute Achilles paratendinopathy in the previously injured limb. Conclusions. Analysis of this case suggests that the acute Achilles paratendinopathy may be a muscle injury complication from indirect trauma of the calf muscle, if a frank and extensive involvement of the CF were to be ascertained.

  15. What Good Coaches Do

    Science.gov (United States)

    Knight, Jim

    2011-01-01

    Instructional coaching guru Jim Knight suggests that how we think about coaching can enhance or interfere with our success as a coach. He suggests that coaches take a partnership approach to collaboration and adopt seven principles that define how coaches interact with collaborating teachers: equality, choice, voice, reflection, dialogue, praxis,…

  16. The Heart of Coaching

    Science.gov (United States)

    Docheff, Dennis M.; Gerdes, Dan

    2015-01-01

    This article challenges coaches to address the more personal, human elements of coaching--the HEART of coaching. While there is much research on numerous aspects of coaching, this article provides ideas that make a lasting impact on the hearts of athletes. Using HEART as an acronym, five elements of effective coaching are presented: Humility,…

  17. Physician burnout: coaching a way out

    National Research Council Canada - National Science Library

    Gazelle, Gail; Liebschutz, Jane M; Riess, Helen

    ... vulnerability, and delayed gratification. Professional coaching, long utilized in the business world, provides a results-oriented and stigma-free method to address burnout, primarily by increasing one's internal locus of control...

  18. Burnout among Judo Coaches in Turkey

    National Research Council Canada - National Science Library

    Gencay, Selcuk; Gencay, Okkes Alpaslan

    2011-01-01

    Objectives: The purpose of this study was to determine the prevalence of professional burnout experienced by Turkish judo coaches and to compare possible differences in the three burnout dimensions based...

  19. Coping strategies of soccer players | Plaatjie | South African Journal ...

    African Journals Online (AJOL)

    This study focused on coping strategies used by soccer (football) players by exploring the role of the environment, ethnicity and culture in players' response to stressful situations. An interpretive-qualitative research methodology was applied with a sample of 33 professional soccer players. The subjects were representative ...

  20. A field-test battery for elite, young soccer players.

    Science.gov (United States)

    Hulse, M A; Morris, J G; Hawkins, R D; Hodson, A; Nevill, A M; Nevill, M E

    2013-04-01

    The validity and reliability of a battery of field-based performance tests was examined. The opinions of coaches, fitness professionals and players (n=170, 172 and 101 respectively) on the importance of performance testing were established using a questionnaire. On 2 occasions, separated by 7 days, 80 elite, young soccer players (mean±SD [and range]: age 13.2±2.6 [8.9-19.1] years; stature 1.59±0.18 m [1.32-1.91]; body mass 50.6±17.1 [26.5-88.7] kg) completed a battery of field-based tests comprised of heart rate response to a submaximal Multi-stage fitness test, 3 types of vertical jump, sprints over 10 and 20 m, and an agility test. Physical performance testing was considered important by coaches (97%), fitness professionals (94%) and players (83%). The systematic bias ratio and the random error components of the 95% ratio limits of agreement for the first and second tests, for the U9-U11 vs. U12-U14 vs. U15-U18 age groups, were [Systematic bias (*/÷ ratio limits)]: Heart rate (Level 5): 0.983 (*/÷ 1.044) vs. 0.969 (*/÷ 1.056) vs. 0.983 (*/÷ 1.055); Rocket jump: 0998 (*/÷ 1.112) vs. 0.999 (*/÷ 1.106) vs. 0.996 (*/÷ 1.093); 10 m sprint: 0.997 (*/÷ 1.038) vs. 0.994 (*/÷ 1.033) vs. 0.994 (*/÷ 1.038); Agility test: 1.010 (*/÷1.050) vs. 1.014 (*/÷1.050) vs. 1.002 (*/÷1.053). All tests, except heart rate recovery from the Multi-stage fitness test, were able to distinguish between different ability and age groups of players (pconstruct validity, and was shown to be a reliable and objective tool for assessing elite, young soccer players. © Georg Thieme Verlag KG Stuttgart · New York.

  1. Personel and life coaching

    DEFF Research Database (Denmark)

    Spaten, Ole Michael

    2017-01-01

    Personal coaching and life-coaching psychology is for assisting individuals clarify values, visions and meaning of life, through a systematic process in which the coach facilitates improvement of satisfying and fruitful life experiences and achievement of personal life goals....

  2. Når coaching swinger

    Directory of Open Access Journals (Sweden)

    Line Fredens

    2015-12-01

    Full Text Available This article describes and analyzes the improvisational and innovative process that takes place between pro-fessional musicians during the extraordinary concert. The aim is to draw parallels to the professional coachingconversation in order to examine what new angles this analogy can contribute in proportion to coaching asa practice. In other words, how can an analysis of the musician’s communication during a successful concertshed light on what is happening in a successful professional dialogue.The article contains both empirical data and theory. The empirical data comes to results from a qualitativestudy undertaken in connection with my thesis within the Master of Learning Processes Specializing in Orga-nizational Coaching at Aalborg University, and is based on interviews with five professional orchestra musi-cians from the Royal Danish Orchestra, the Copenhagen Phil and the Danish National Symphony Orchestra

  3. Classification of theoretical and methodological foundations of training future coaches

    Directory of Open Access Journals (Sweden)

    Chopyk T.V.

    2013-06-01

    Full Text Available The problem of training future trainers and teachers in higher education institutions is considered. Theoretically analyzed the problem of training future coaches. Systematized content of theoretical and methodological foundations of training future coaches. It was revealed that the system of knowledge creation is based on logically related topics of general characteristics of the professional activity of the future coaches and features of the content of the production functions. Also on the justification of typical tasks of future coaches, definition and development of professional competencies of future coaches during training. In addition, also the prospects for the development of sport as a future profession. The proposed classification is different from previous work defining the future of professional competence of trainers and teachers in the process of training, clarifying sections of future performance professional coaches and prospects of the development of sports.

  4. Determinants of feedback retention in soccer players

    Directory of Open Access Journals (Sweden)

    Januário Nuno

    2016-06-01

    Full Text Available This study analyzed soccer players’ retention of coaches’ feedback during training sessions. We intended to determine if the retention of information was influenced by the athletes’ personal characteristic (age, gender and the sports level, the quantity of information included in coach’s feedback (the number of ideas and redundancy, athletes’ perception of the relevance of the feedback information and athletes’ motivation as well as the attention level. The study that was conducted over the course of 18 sessions of soccer practice, involved 12 coaches (8 males, 4 females and 342 athletes (246 males, 96 females, aged between 10 and 18 years old. All coach and athlete interventions were transposed to a written protocol and submitted to content analysis. Descriptive statistics and multiple linear regression were calculated. The results showed that a substantial part of the information was not retained by the athletes; in 65.5% of cases, athletes experienced difficulty in completely reproducing the ideas of the coaches and, on average, the value of feedback retention was 57.0%. Six variables with a statistically significant value were found: gender, the athletes’ sports level, redundancy, the number of transmitted ideas, athletes’ perception of the relevance of the feedback information and the athletes’ motivation level.

  5. "Coaching the Camp Coach: Leadership Development for Small Organizations" Resource Review

    Directory of Open Access Journals (Sweden)

    Jason Hedrick

    2009-09-01

    Full Text Available Coaching is an important component of successful professional growth for leaders within any organization. However, organizations with limited resources may have challenges providing such coaching opportunities. This can be especially true for small business, non profit organizations and summer camps. “Coaching the Camp Coach; Leadership Development for Small Organizations” by Shelton, M. (2003 provides a framework, both in theory and practice, for camp leaders to improve interpersonal and intrapersonal skills through self evaluation. Accompanying the book is a CD-ROM that has multiple worksheets to be used in conjunction with the text.

  6. Narrative coaching

    DEFF Research Database (Denmark)

    Stelter, Reinhard

    2010-01-01

    is presented to give a concrete example of this narrative, community psychological oriented intervention, a process which helps people to develop a sense of personal or cultural identity and an understanding of their doing as being in correspondence with their values and intentions. The overarching focus...... of narrative coaching as presented in this chapter is on shaping modified, uplifting and/or alternative stories about experiences and activities athletes or exercisers are able to share in their concrete community of practice. These joint actions might be a way to build up local cultures in different sport...

  7. Effect of specific soccer training on general soccer ability of high fit tribal soccer players

    OpenAIRE

    Dr.Gopal Chandra Saha; Dr. Hiralal Adhikari

    2014-01-01

    The purpose of the study was to investigate the effect of specific soccer training on General Soccer ability (volleying Skill) by using Mcdonald Soccer Test of high fit tribal soccer players. ninety, high fit tribal Soccer players out of two hundred and seventy, 9th and 10th grade school level tribal Soccer players from Ergoda School parihati of paschim Medinipur, District of West Bengal were randomly selected as the tribal subjects for this study. To ascertain the high fit tribal Soccer play...

  8. Sex bias and the validity of believed differences between male and female interscholastic athletic coaches.

    Science.gov (United States)

    Hasbrook, C A; Hart, B A; Mathes, S A; True, S

    1990-09-01

    Previous research indicates that young athletes as well as athletic administrators hold gender-role stereotypical beliefs about coaches that disfavor females. The validity of two such beliefs (lack of qualified female coaches and time constraints due to family responsibilities) was examined in a statewide survey of 256 female and 296 male interscholastic coaches and a nationwide survey of 2,719 male and 1,449 female interscholastic coaches. Statistical analyses (p less than .001) indicated that female coaches were (a) more qualified than their male counterparts with respect to coaching experience with female teams, professional training, and professional experience; (b) as qualified as male coaches with regard to intercollegiate playing experience; and (c) less qualified than male coaches with respect to high school playing experience and coaching experience with male teams. Findings also indicated that male rather than female coaches more often experienced time constraints due to family responsibilities.

  9. On the mathematical modeling of soccer dynamics

    Science.gov (United States)

    Machado, J. A. Tenreiro; Lopes, António M.

    2017-12-01

    This paper addresses the modeling and dynamical analysis of soccer teams. Two modeling perspectives based on the concepts of fractional calculus are adopted. In the first, the power law behavior and fractional-order integration are explored. In the second, a league season is interpreted in the light of a system where the teams are represented by objects (particles) that evolve in time and interact (collide) at successive rounds with dynamics driven by the outcomes of the matches. The two proposed models embed implicitly details of players and coaches, or strategical and tactical maneuvers during the matches. Therefore, the scale of observation focuses on the teams behavior in the scope of the observed variables. Data characterizing two European soccer leagues in the season 2015-2016 are adopted and processed. The model leads to the emergence of patterns that are analyzed and interpreted.

  10. Soccer Skill Development in Professionals

    NARCIS (Netherlands)

    Huijgen, B. C. H.; Elferink-Gemser, M. T.; Post, W. J.; Visscher, C.

    The purpose of this study was to investigate the relationship between the development of the technical skill dribbling during ages 14-18 and adulthood playing level. The results gained insight in the required level of the technical skill dribbling during adolescence to be capable of becoming a

  11. Coaching: An Apprenticeship Approach for the 21st Century

    Science.gov (United States)

    Salavert, Roser

    2015-01-01

    Coaching, an apprentice-based approach to support professional and personal development towards achieving set goals, is a well-established practice in the fields of sports training and management and one of the fastest growing professional development methods in the education field. How the coaching partnership fosters leadership and improves…

  12. The Emerging Field of Executive and Organizational Coaching: An Overview

    Science.gov (United States)

    Ciporen, Rachel

    2015-01-01

    In recent years coaching has become an increasingly popular intervention used in both personal and professional development spheres. This chapter draws on industry research from scholars as well as professional organizations to map the history, definitions, and trends of executive and organizational coaching to provide clarity on a complex and…

  13. The Effects of 120 Minutes of Simulated Match Play on Indices of Acid-Base Balance in Professional Academy Soccer Players.

    Science.gov (United States)

    Harper, Liam D; Clifford, Tom; Briggs, Marc A; McNamee, Ged; West, Daniel J; Stevenson, Emma; Russell, Mark

    2016-06-01

    This study investigated the changes in indices of acid-base balance during 120 minutes of simulated soccer match play that included a 30 minute extra-time (ET) period. Eight English Premier League academy soccer players participated in a simulated soccer match that required varying intensities of intermittent exercise including 15-m sprints and soccer dribbling throughout. Blood samples were obtained before (i.e., baseline and pre-exercise) and throughout exercise (i.e., 15, 30, 45, 60, 75, 90, 105, and 120 minutes), and at half time. Sprint speeds over 15 m reduced in ET compared to the first half (-0.39 ± 0.37 m·s, -7 ± 6%, p = 0.021) but not the second half (-0.18 ± 0.25 m·s, -3 ± 4%, p = 0.086). At 105 minutes, blood lactate concentrations reduced compared with that in the opening 30 minutes (-0.9 to -1.2 mmol·L, p ≤ 0.05). Blood pH (-0.03 to -0.04 units), base excess (-0.95 to -1.48 mmol·L), and bicarbonate concentrations (-0.9 ± 0.8 mmol·L) were depressed at 120 minutes compared with those at 105 minutes, baseline and half time (all p ≤ 0.05). There were no significant correlations between changes in acid-base balance and sprint speed (all p > 0.05). Although the perturbations in acid-base balance during ET were statistically significant, the decreases in blood pH, lactate, base excess, and bicarbonate concentrations may not represent metabolic acidosis or impairments in buffering capacity that are likely to explain reduced physical performance. Further research is warranted to investigate mechanisms of fatigue during ET and to develop interventions that attenuate decrements in performance.

  14. The effect of neuromuscular electrical stimulation on quadriceps strength and knee function in professional soccer players: return to sport after ACL reconstruction.

    Science.gov (United States)

    Taradaj, J; Halski, T; Kucharzewski, M; Walewicz, K; Smykla, A; Ozon, M; Slupska, L; Dymarek, R; Ptaszkowski, K; Rajfur, J; Pasternok, M

    2013-01-01

    The aim of this study was to assess the clinical efficacy and safety of NMES program applied in male soccer players (after ACL reconstruction) on the quadriceps muscle. The 80 participants (NMES = 40, control = 40) received an exercise program, including three sessions weekly. The individuals in NMES group additionally received neuromuscular electrical stimulation procedures on both right and left quadriceps (biphasic symmetric rectangular pulses, frequency of impulses: 2500 Hz, and train of pulses frequency: 50 Hz) three times daily (3 hours of break between treatments), 3 days a week, for one month. The tensometry, muscle circumference, and goniometry pendulum test (follow-up after 1 and 3 months) were applied. The results of this study show that NMES (in presented parameters in experiment) is useful for strengthening the quadriceps muscle in soccer athletes. There is an evidence of the benefit of the NMES in restoring quadriceps muscle mass and strength of soccer players. In our study the neuromuscular electrical stimulation appeared to be safe for biomechanics of knee joint. The pathological changes in knee function were not observed. This trial is registered with Australian and New Zealand Clinical Trials Registry ACTRN12613001168741.

  15. The Effect of NeuroMuscular Electrical Stimulation on Quadriceps Strength and Knee Function in Professional Soccer Players: Return to Sport after ACL Reconstruction

    Directory of Open Access Journals (Sweden)

    J. Taradaj

    2013-01-01

    Full Text Available The aim of this study was to assess the clinical efficacy and safety of NMES program applied in male soccer players (after ACL reconstruction on the quadriceps muscle. The 80 participants (NMES = 40, control = 40 received an exercise program, including three sessions weekly. The individuals in NMES group additionally received neuromuscular electrical stimulation procedures on both right and left quadriceps (biphasic symmetric rectangular pulses, frequency of impulses: 2500 Hz, and train of pulses frequency: 50 Hz three times daily (3 hours of break between treatments, 3 days a week, for one month. The tensometry, muscle circumference, and goniometry pendulum test (follow-up after 1 and 3 months were applied. The results of this study show that NMES (in presented parameters in experiment is useful for strengthening the quadriceps muscle in soccer athletes. There is an evidence of the benefit of the NMES in restoring quadriceps muscle mass and strength of soccer players. In our study the neuromuscular electrical stimulation appeared to be safe for biomechanics of knee joint. The pathological changes in knee function were not observed. This trial is registered with Australian and New Zealand Clinical Trials Registry ACTRN12613001168741.

  16. Hydration status, fluid intake, and electrolyte losses in youth soccer players.

    Science.gov (United States)

    Williams, Craig A; Blackwell, Jamie

    2012-12-01

    The purpose of the study was to determine the hydration status, fluid intake, and electrolyte losses of 21 male professional youth soccer players (age 17.1 ± 0.7 y) training in a cool environment. Pretraining and posttraining measurements of body mass, urine (freezing-point osmolality method), and sweat concentration (flame-emission spectroscopy) were collected. Fourteen players were found to be hypohydrated before training. The amount of fluid lost due to exercise equated to a 1.7% loss in body mass, which equated to a gross dehydration loss of 0.5%. Overall, the soccer players replaced 46% ± 88% of sweat loss during training, and only 4 remained hypohydrated after training. No significant correlations between sweat loss and sweat concentrations of Na+ (r = -.11, P = .67) or K+ (r = .14, P = .58) were found, but there was a significant correlation with Mg2+ (r = -.58, P hydration status that the players were able to rehydrate during the training sessions. However, given the numbers starting training in a hypohydrated state, adequate hydration status before training should be considered by youth players, coaches, and sports-science support staff.

  17. Does Maturity Status Affect The Relationship Between Anaerobic Speed Reserve And Multiple Sprints Sets Performance in Young Soccer Players?

    Science.gov (United States)

    Selmi, Mohamed Amin; Al-Haddabi, Badriya; Yahmed, Mohamed Haj; Sassi, Radhouane Haj

    2017-11-29

    The purpose of this study is to examine the relationship between repeated-sprint sets (RSS) performance indices and anaerobic speed reserve (ASR) in young soccer players of different maturity status. One hundred and seventy nine young male soccer players (11.1 to 17.8 years) classified as pre- (n=50), circum- (n=60), or post- (n=69) peak height velocity (PHV) performed multi-stage shuttle run test (MRST) to measure maximal aerobic speed (MAS), 30-m sprint with 10-m splits to estimate maximal anaerobic speed (MAnS), and RSS test. ASR was calculated as the difference between MAS and MAnS. The RSS indices, MAS, MAnS and ASR were significantly different in the three maturity groups (pRSS performance indices and ASR varied considerably depending on maturity status. Very large correlations between ASR and RSS indices expressed as sum sprint time (SST) and best sprint time (BST) were found for pre- and circum-PHV groups (r=-0.76, -0.79 and r=-0.82, -0.86, respectively). In the post-PHV group, ASR was moderately associated with both SST (r=-0.45) and BST (r=-0.46). To sum up, these results highlighted that the ASR is more related to factors of RSS performance in pre- and circum-PHV male soccer players compared with post-PHV ones. These findings could help coaches and strength and conditioning professionals to better understand how the relationship between ASR and RSS evolve across the maturity and may be considered, therefore, useful in youth soccer selection/training process.

  18. Head Impact Biomechanics in Women's College Soccer.

    Science.gov (United States)

    Lynall, Robert C; Clark, Michael D; Grand, Erin E; Stucker, Jaclyn C; Littleton, Ashley C; Aguilar, Alain J; Petschauer, Meredith A; Teel, Elizabeth F; Mihalik, Jason P

    2016-09-01

    There are limited nonlaboratory soccer head impact biomechanics data. This is surprising given soccer's global popularity. Epidemiological data suggest that female college soccer players are at a greater concussion injury risk than their male counterparts. Therefore, the purposes of our study were to quantify head impact frequency and magnitude during women's soccer practices and games in the National Collegiate Athletic Association and to characterize these data across event type, playing position, year on the team, and segment of game (first and second halves). Head impact biomechanics were collected from female college soccer players (n = 22; mean ± SD age = 19.1 ± 0.1 yr, height = 168.0 ± 3.5 cm, mass = 63.7 ± 6.0 kg). We employed a helmetless head impact measurement device (X2 Biosystems xPatch) before each competition and practice across a single season. Peak linear and rotational accelerations were categorized based on impact magnitude and subsequently analyzed using appropriate nonparametric analyses. Overall, women's college soccer players experience approximately seven impacts per 90 min of game play. The overwhelming majority (~90%) of all head impacts were categorized into our mildest linear acceleration impact classification (10g-20g). Interestingly, a higher percentage of practice impacts in the 20g-40g range compared with games (11% vs 7%) was observed. Head impact biomechanics studies have provided valuable insights into understanding collision sports and for informing evidence-based rule and policy changes. These have included changing the football kickoff, ice hockey body checking ages, and head-to-head hits in both sports. Given soccer's global popularity, and the growing public concern for the potential long-term neurological implications of collision and contact sports, studying soccer has the potential to impact many athletes and the sports medicine professionals caring for them.

  19. Third Generation Coaching

    DEFF Research Database (Denmark)

    Stelter, Reinhard

    2016-01-01

    Third Generation Coaching entfaltet ein neues Universum für Coaching und Coaching-Psychologie auf der Grundlage veränderter Gesellschaftsbedingungen. Wir leben in hyperkomplexen sozialen und ökonomischen Kontexten. Coaching muss sich deshalb zu einer Dialogform weiterentwickeln, die dem Einzelnen...

  20. Kollegial coaching mellem sygeplejersker

    DEFF Research Database (Denmark)

    Molly, Asbjørn; Høeg, Bettina

    2007-01-01

    Artiklen henvender sig til afdelingssygeplejersker med interesse for coaching. Hovedbudskabet er, at kollegial coaching tilbyder en ramme, hvor det er muligt at få udviklet et sprog for ledelse. I artiklen defineres coaching ind i en sygeplejekontekst, og to afdelingssygeplejersker fra Vejle...... Sygehus fortæller om deres erfaringer med kollegial coaching....

  1. High levels of coach intent to integrate a ACL injury prevention program into training does not translate to effective implementation.

    Science.gov (United States)

    Frank, Barnett S; Register-Mihalik, Johna; Padua, Darin A

    2015-07-01

    Evaluate the effect of a anterior cruciate ligament injury prevention program coaching workshop on elite-level youth soccer coaches' behavioral determinants to implement a injury prevention program and describe coaches' subsequent injury prevention program implementation compliance. Descriptive study. We evaluated a soccer club's coaches' behavioral determinants regarding injury prevention programming implementation before and after a coaching workshop using pre- and post-workshop surveys. We then described the club's coaches' subsequent adoption of and implementation compliance with the injury prevention programming during the following season. The injury prevention workshop increased coaches' attitudes toward conducting a program at the beginning of practice (pinjury prevention program workshop increased coaches' perceived behavioral control; feeling more comfortable in their ability to teach their team a program (pinjury prevention program workshop increased coaches' intent to implement a program the next season (ptraining session. Only 53% of the club's teams implemented the injury prevention program, with implementers demonstrating high variability in program fidelity. Coaching workshops can effectively increase coach attitudes, perceived behavioral control, and intent to implement a injury prevention program. However, high levels of behavioral determinants do not appear to translate to high levels of implementation compliance. Copyright © 2014 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.

  2. Increasing Performance of Professional Soccer Players and Elite Track and Field Athletes with Peak Performance Training and Biofeedback : A Pilot Study

    NARCIS (Netherlands)

    Rijken, Noortje H.; Soer, Remko; de Maar, Ewold; Prins, Hilco; Teeuw, Wouter B.; Peuscher, Jan; Oosterveld, Frits G. J.

    2016-01-01

    The aim of this pilot study was to investigate the effects of an intervention consisting of mental coaching combined with either electro encephalogram (EEG) alpha power feedback or heart rate variability (HRV) feedback on HRV, EEG outcomes and self-reported factors related to stress, performance,

  3. The development of aerobic and skill assessment in soccer.

    Science.gov (United States)

    O'Reilly, John; Wong, Stephen H S

    2012-12-01

    Methods of assessing soccer players' performance have developed significantly in recent times. The fitness profiles and skill levels of a prospective elite soccer player is a valuable resource for coaches in the process of identifying talent. Traditional means to measure aerobic fitness have centred on the 'aerobic capacity' or '&OV0312;O(2max)' test (also known as the maximal oxygen consumption test) but, over time, this has been shown not to be a sensitive measure for specific aspects of soccer in a match situation. Therefore, numerous soccer-specific simulations have been designed to re-create exercise patterns similar to those experienced during a match. Some of these studies have yet to be validated, while others have been shown to result in a similar physiological load to that encountered during regular match play. Further developments have led to specifically designed intermittent sprint tests, which are used as a sensitive tool to accurately measure the fluctuations in players' ability both between and within soccer seasons. Testing procedures have also been developed that incorporate elements of both skill and physical ability. Soccer-specific field tests have been designed, incorporating skill and dynamic movements, and this opens up the possibility of teams testing the aerobic capacity of their elite players using soccer-specific movements. Valid studies assessing soccer-specific skills in an ecologically sound environment have been quite rare until recently. Some test protocols have been deemed largely irrelevant to soccer match play, while others have had limited impact on scientific literature. More recently, skill tests have been developed and shown to be valid and reliable methods of assessing soccer skill performance. Many new skill tests continue to be developed, and some have been shown to be highly reliable, but further study of these relatively novel concepts is required before a more solid recommendation can be made. Overall, while significant

  4. HANDBALL COACHES' PERCEPTIONS ABOUT THE VALUE OF WORKING COMPETENCES ACCORDING TO THEIR COACHING BACKGROUND

    Directory of Open Access Journals (Sweden)

    Isabel Mesquita

    2011-03-01

    Full Text Available The purpose of this study was to analyze the value attributed to given working competences, by Portuguese handball coaches according to their coaching background, certification level, coaching experience, and level of education. A sample of 207 handball coaches responded to a questionnaire which included demographic characteristics and a scale focused on perceptions of the level of importance attributed to working competences. Data analysis included an exploratory factorial analysis applying Maximum Likelihood Factoring (MLF and Oblimin rotation. These factors were submitted to a One-way ANOVA and Tukey's post hoc multiple comparisons to analyse coaches' perceptions according to their coaching background. A six factor solution was found where three major domains of competences were highlighted; the first one related to training and competition (e.g. planning and conducting the training, team administration in competition, annual and multi-annual planning, and coaching methodology; the second one related to social and cultural issues and management (e.g. implementation of youth sport development projects, team leadership and coach education and the third one related to the cognitive background (meta-cognitive competences. The importance ascribed to some working competences was influenced by their coaching experience and certification level. Highly experienced and qualified coaches perceived competences of everyday practice, social, cultural and management issues related to training and competition as more important than the other coaches. This study suggests the need to consider some working competences, until now not explicitly present in the Portuguese coaching education curriculum which could enable coaches to choose the best way to practice/work in a manner that will foster and support their professional development.

  5. "Just Wait Then and See What He Does": A Speech Act Analysis of Healthcare Professionals' Interaction Coaching with Parents of Children with Autism Spectrum Disorders

    Science.gov (United States)

    McKnight, Lindsay M.; O'Malley-Keighran, Mary-Pat; Carroll, Clare

    2016-01-01

    Background: There is evidence indicating that parent training programmes including interaction coaching of parents of children with autism spectrum disorders (ASD) can increase parental responsiveness, promote language development and social interaction skills in children with ASD. However, there is a lack of research exploring precisely how…

  6. Coaching Older

    Directory of Open Access Journals (Sweden)

    Stacey Masters

    2012-08-01

    Full Text Available BackgroundFrail older people who are considering movement into residential aged care or returning home following a hospital admission often face complex and difficult decisions. Despite research interest in this area, a recent Cochrane review was unable to identify any studies of interventions to support decision-making in this group that met the experimental or quasi-experimental study design criteria. AimsThis study tests the impact of a multi-component coaching intervention on the quality of preparation for care transitions, targeted to older adults and informal carers. In addition, the study assesses the impact of investing specialist geriatric resources into consultations with families in an intermediate care setting where decisions about future care needs are being made. Method This study was a randomised controlled trial of 230 older adults admitted to intermediate care in Australia. Masked assessment at 3 and 12 months examined physical functioning, health-related quality of life and utilisation of health and aged care resources. A geriatrician and specialist nurse delivered a coaching intervention to both the older person and their carer/family. Components of the intervention included provision of a Question Prompt List prior to meeting with a geriatrician (to clarify medical conditions and treatments, medications, ‘red flags’, end of life decisions and options for future health care and a follow-up meeting with a nurse who remained in telephone contact. Participants received a printed summary and an audio recording of the meeting with the geriatrician.ConclusionThe costs and outcomes of the intervention are compared with usual care. Trial registration: Australian New Zealand Clinical Trials Registry.

  7. Muscle Contraction Velocity: A Suitable Approach to Analyze the Functional Adaptations in Elite Soccer Players

    Science.gov (United States)

    Loturco, Irineu; Pereira, Lucas A.; Kobal, Ronaldo; Kitamura, Katia; Ramírez-Campillo, Rodrigo; Zanetti, Vinicius; Abad, Cesar C. Cal; Nakamura, Fabio Y.

    2016-01-01

    Tensiomyography (TMG) has been used as a simple and non-invasive tool to assess the mechanical properties of skeletal muscles. The TMG-derived velocity of contraction (Vc), which can be calculated from the ratio between maximal radial displacement and the sum of contraction time and delay time, has been proposed for evaluating athletes. However, its sensitivity to training effects and possible relation with changes in soccer players’ neuromuscular performance have not yet been addressed. To test this possibility, twenty-two male Brazilian elite soccer players were assessed using TMG-derived Vc, unloaded squat jump, countermovement jump and drop jump at 45 cm, loaded jump squat and linear (20 m) and change of direction (COD) sprint tests, prior to and after an 8-week period, between two consecutive official tournaments, during which the concurrency between endurance and strength-power training commonly impairs neuromuscular capacities. Magnitude-based inference was used to detect meaningful training effects. From pre- to post-tests, it was observed likely to almost certainly improvements in all modes of jumping tests. In addition, we could verify decrements in the 20-m and COD sprint performances, which were rated as very likely and almost certainly, respectively. Finally, both rectus femoris and biceps femoris muscles presented a likely reduction in Vc. Therefore, chronic decreases in sprinting speed are possibly accompanied by a reduced TMG-derived Vc. From a practical standpoint, the TMG-derived Vc can be used to monitor negative specific-soccer training effects related to potential impairments in maximum speed. Key points Tensiomyography (TMG) can be considered a useful technology for coaches and sport scientists seeking for non-invasive and practical tools to assess the muscle function of elite athletes; Velocity of contraction (Vc) is a single index able to integrate several of the reliable mechanical outcomes provided by TMG, which was shown to be sensitive

  8. Methods of the international study on soccer at altitude 3600 m (ISA3600)

    Science.gov (United States)

    Gore, Christopher J; Aughey, Robert J; Bourdon, Pitre C; Garvican-Lewis, Laura A; Soria, Rudy; Claros, Jesus C Jimenez; Sargent, Charli; Roach, Gregory D; Buchheit, Martin; Simpson, Ben M; Hammond, Kristal; Kley, Marlen; Wachsmuth, Nadine; Pepper, Mark; Edwards, Alistair; Cuenca, Douglas; Vidmar, Tony; Spielvogel, Hilde; Schmidt, Walter F

    2013-01-01

    Background We describe here the 3-year process underpinning a multinational collaboration to investigate soccer played at high altitude—La Paz, Bolivia (3600 m). There were two main aims: first, to quantify the extent to which running performance would be altered at 3600 m compared with near sea level; and second, to characterise the time course of acclimatisation of running performance and underlying physiology to training and playing at 3600 m. In addition, this project was able to measure the physiological changes and the effect on running performance of altitude-adapted soccer players from 3600 m playing at low altitude. Methods A U20 Bolivian team (‘The Strongest’ from La Paz, n=19) played a series of five games against a U17 team from sea level in Australia (The Joeys, n=20). 2 games were played near sea level (Santa Cruz 430 m) over 5 days and then three games were played in La Paz over the next 12 days. Measures were (1) game and training running performance—including global positioning system (GPS) data on distance travelled and velocity of movement; (2) blood—including haemoglobin mass, blood volume, blood gases and acid–base status; (3) acclimatisation—including resting heart rate variability, perceived altitude sickness, as well as heart rate and perceived exertion responses to a submaximal running test; and (4) sleep patterns. Conclusions Pivotal to the success of the project were the strong professional networks of the collaborators, with most exceeding 10 years, the links of several of the researchers to soccer federations, as well as the interest and support of the two head coaches. PMID:24282214

  9. Balance in competition in Dutch soccer

    NARCIS (Netherlands)

    Koning, Ruud H.

    2000-01-01

    In this paper, we estimate an ordered probit model for soccer results in The Netherlands. The result of a game is assumed to be determined by home advantage and quality differences of the opposing teams. The parameters of the model are used to assess whether competitive balance in Dutch professional

  10. What makes non-profit soccer teams run? A panel data approach using a sample of Braga teams

    Directory of Open Access Journals (Sweden)

    Paulo Reis Mourão

    2012-06-01

    Full Text Available Amateur soccer teams are influenced by different local and regional factors from professional soccer teams. This article revisits the literature on the determinants of soccer performance and the sustainability of non-profit organizations. Using panel data techniques, we conclude that the outcomes of non-profit soccer teams depend on specific local markets and on the institutional environments of nonprofit organizations.

  11. Conceptualizing the adventure-sports coach

    OpenAIRE

    Collins, L.; Collins, D

    2012-01-01

    As a comparatively recent development, the adventure-sports coach struggles for a clear and distinct identity. The generic term ‘instructor’ no longer characterizes the role and function of this subgroup of outdoor professionals. Indeed, although the fields of adventure/outdoor education and leadership are comparatively well researched, the arrival of this ‘new kid on the block’ appears to challenge both the adventure-sports old guard and traditional views of sports coaching. In an attempt to...

  12. O processo de formação do atleta de futsal e futebol: análise etnográfica Formation proccess of indoor and outdoor soccer athletes: an ethnographical analysis

    Directory of Open Access Journals (Sweden)

    Fernando Renato Cavichiolli

    2011-12-01

    Full Text Available Apesar de o senso comum estabelecer que todo brasileiro "já nasce sabendo jogar bola", é longo o caminho entre o reconhecimento de se "ter talento" para o futebol até a "lapidação" desta espécie de "aptidão aparentemente inata". Assim, cada vez mais cedo, as crianças praticam Futsal em escolinhas esportivas com a esperança de que sejam encaminhadas/convidadas a jogarem o Futebol em clubes profissionais. Como a quantidade desses jovens que se lançam no mercado esportivo é crescente, faz-se necessário observar e entender como se dá o comportamento social estabelecido nas escolinhas de futsal/futebol. O objetivo do presente estudo foi investigar o planejamento/ações que pais e clubes realizam para que os garotos adquiram a capacidade de jogar futsal/futebol. Para tanto, por meio de trabalho etnográfico, durante um ano foram observadas e registradas em entrevistas e diário de campo as práticas e as falas dos jovens atletas, pais, professores e dirigentes de um clube tradicional de Curitiba. Partindo da premissa de que a mítica do talento inato dá lugar à aprendizagem sistematizada como forma de se obter o triunfo, pretendemos expor aqui como são traçados os caminhos e os descaminhos no mundo do futsal e futebol de base. O trabalho revela que a formação de um jogador consiste num processo de ensino-aprendizagem-prática determinado pelos pais e que encontram eco em clubes especializados. Evidencia-se que para alguns pais e professores o "jogar bola" é apenas mais uma possibilidade de profissão, tão desejada, entre outras.People say "each Brazilian citizen is born knowing how to play soccer". However there is a long way between the detection of a talented soccer player until the development of this kind of inborn aptitude. That is the reason of children start the practice of soccer earlier and earlier in schools and soccer-specific schools with the hope of being invited or selected to play soccer in any professional club

  13. Quantification of training load during one-, two- and three-game week schedules in professional soccer players from the English Premier League: implications for carbohydrate periodisation.

    Science.gov (United States)

    Anderson, Liam; Orme, Patrick; Di Michele, Rocco; Close, Graeme L; Morgans, Ryland; Drust, Barry; Morton, James P

    2016-01-01

    Muscle glycogen is the predominant energy source for soccer match play, though its importance for soccer training (where lower loads are observed) is not well known. In an attempt to better inform carbohydrate (CHO) guidelines, we quantified training load in English Premier League soccer players (n = 12) during a one-, two- and three-game week schedule (weekly training frequency was four, four and two, respectively). In a one-game week, training load was progressively reduced (P training load and periodisation was similar in the one- and two-game weeks, total accumulative distance (inclusive of both match and training load) was higher in a two-game week (32.5 ± 4.1 km) versus one-game week (25.9 ± 2 km). In contrast, daily training total distance was lower in the three-game week (2422 ± 251 m) versus the one- and two-game weeks, though accumulative weekly distance was highest in this week (35.5 ± 2.4 km) and more time (P 14.4 km · h(-1) (14%, 18% and 23% in the one-, two- and three-game weeks, respectively). Considering that high CHO availability improves physical match performance but high CHO availability attenuates molecular pathways regulating training adaptation (especially considering the low daily customary loads reported here, e.g., 3-5 km per day), we suggest daily CHO intake should be periodised according to weekly training and match schedules.

  14. Jovens esportistas: profissionalização no futebol e a formação na escola Young sportsmen: professionalization in soccer and formation in school

    Directory of Open Access Journals (Sweden)

    Hugo Paula Almeida da Rocha

    2011-06-01

    Full Text Available Os objetivos do estudo foram: verificar como os atletas das categorias de base do futebol conciliam sua rotina de treinamento com a escolarização básica e; como os estudantes-atletas percebem o significado da escola na busca por uma ocupação futura. Para esta análise, foram realizadas 12 entrevistas semiestruturadas com jogadores das categorias de base - na faixa de idade entre 15 e 20 anos - de quatro clubes de futebol do Estado do Rio de Janeiro. Observamos que os atletas adotam diferentes estratégias de conciliação entre as rotinas no futebol e na escola, mediados pelos mecanismos de flexibilização adotados pelos estabelecimentos de ensino e/ou professores, com a anuência dos pais. Concluímos que essas estratégias de conciliação têm como finalidade a permanência do atleta na escola. Embora tenhamos refletido sobre os mecanismos de flexibilização adotados por professores e diretores, não podemos medir o impacto causado no aprendizado e na trajetória escolar desses jovens atletas de futebol.The goals of the study were: to verify how young soccer players manage to conciliate their training routines with school; and how the student-athletes perceive the importance of school in the search for a future occupation. For this analysis, we made 12 interviews half-structuralized with young players - from 15 to 20 years - of four soccer teams from Rio de Janeiro. We observed that these athletes find distinct strategies of conciliation between soccer and school routines, mediated by mechanisms of loosening adopted by the educational establishments/teachers, with the consent of the parents. We concluded that the purpose of this agreement is the permanence of the athlete in the school. Although we have reflected on the mechanisms of loosening adopted by teachers and principals, we cannot infer the impact caused by such mechanisms in the institutionalized education of these young athletes of soccer.

  15. Perspectives on Agile Coaching

    Science.gov (United States)

    Fraser, Steven; Lundh, Erik; Davies, Rachel; Eckstein, Jutta; Larsen, Diana; Vilkki, Kati

    There are many perspectives to agile coaching including: growing coaching expertise, selecting the appropriate coach for your context; and eva luating value. A coach is often an itinerant who may observe, mentor, negotiate, influence, lead, and/or architect everything from team organization to system architecture. With roots in diverse fields ranging from technology to sociology coaches have differing motivations and experience bases. This panel will bring together coaches to debate and discuss various perspectives on agile coaching. Some of the questions to be addressed will include: What are the skills required for effective coaching? What should be the expectations for teams or individu als being coached? Should coaches be: a corporate resource (internal team of consultants working with multiple internal teams); an integral part of a specific team; or external contractors? How should coaches exercise influence and au thority? How should management assess the value of a coaching engagement? Do you have what it takes to be a coach? - This panel will bring together sea soned agile coaches to offer their experience and advice on how to be the best you can be!

  16. Influence of exercise on skill proficiency in soccer.

    Science.gov (United States)

    Russell, Mark; Kingsley, Michael

    2011-07-01

    The ability to maintain technical performances (i.e. skills) throughout soccer match-play is considered to be crucial in determining the outcome of competitive fixtures. Consequently, coaches dedicate a large proportion of time to practicing isolated skills, such as passing, shooting and dribbling. Unlike other elements that contribute to team-sport performances, it is unusual for coaches to use methods other than observations to assess changes resulting from technical training. Researchers have employed various tests to measure isolated soccer skills; however, reliance on outcome measures that include number of contacts (ball juggling tasks), time (dribbling tasks) and points scored (criterion-based passing and shooting tests) means that the outcomes are difficult for coaches to interpret. Skill tests that use video-analysis techniques to measure ball speed, precision and success of soccer skills offer valid and reliable alternatives. Although equivocal results are published, skill performances can be affected by assorted factors that threaten homeostasis, including match-related fatigue, dehydration and reductions in blood glucose concentrations. While acknowledging methodological constraints associated with using skill tests with limited ecological validity and cognitive demands, the effects of these homeostatic disturbances might vary according to the type of skill being performed. Shooting performances appear most susceptible to deterioration after exercise. Strategies such as aerobic training, fluid-electrolyte provision and acute carbohydrate supplementation have been found to improve proficiency in technical actions performed after soccer-specific exercise. However, mechanisms that cause deterioration in skill during soccer-specific exercise remain to be fully elucidated and strategies to optimize technical performance throughout match-play are warranted.

  17. Physician burnout: coaching a way out.

    Science.gov (United States)

    Gazelle, Gail; Liebschutz, Jane M; Riess, Helen

    2015-04-01

    Twenty-five to sixty percent of physicians report burnout across all specialties. Changes in the healthcare environment have created marked and growing external pressures. In addition, physicians are predisposed to burnout due to internal traits such as compulsiveness, guilt, and self-denial, and a medical culture that emphasizes perfectionism, denial of personal vulnerability, and delayed gratification. Professional coaching, long utilized in the business world, provides a results-oriented and stigma-free method to address burnout, primarily by increasing one's internal locus of control. Coaching enhances self-awareness, drawing on individual strengths, questioning self-defeating thoughts and beliefs, examining new perspectives, and aligning personal values with professional duties. Coaching utilizes established techniques to increase one's sense of accomplishment, purpose, and engagement, all critical in ameliorating burnout. Coaching presumes that the client already possesses strengths and skills to handle life's challenges, but is not accessing them maximally. Although an evidence base is not yet established, the theoretical basis of coaching's efficacy derives from the fields of positive psychology, mindfulness, and self-determination theory. Using a case example, this article demonstrates the potential of professional coaching to address physician burnout.

  18. Soccer ball lift coefficients via trajectory analysis

    Energy Technology Data Exchange (ETDEWEB)

    Goff, John Eric [Department of Physics, Lynchburg College, Lynchburg, VA 24501 (United States); Carre, Matt J, E-mail: goff@lynchburg.ed [Department of Mechanical Engineering, University of Sheffield, Sheffield S1 3JD (United Kingdom)

    2010-07-15

    We performed experiments in which a soccer ball was launched from a machine while two high-speed cameras recorded portions of the trajectory. Using the trajectory data and published drag coefficients, we extracted lift coefficients for a soccer ball. We determined lift coefficients for a wide range of spin parameters, including several spin parameters that have not been obtained by today's wind tunnels. Our trajectory analysis technique is not only a valuable tool for professional sports scientists, it is also accessible to students with a background in undergraduate-level classical mechanics.

  19. Studying the relationship between leadership style of coaches and sportsmanship commitment of athletes (A case study of professional athletes in I.R. I. Karate Super League

    Directory of Open Access Journals (Sweden)

    Shahram Shafiee

    2016-06-01

    Full Text Available Purpose: Today, when a group of people trying to reach the goal, manager and leader usually undertake the responsibility of the group. Coach renders influence on team members, while athletes work hard to achieve team goals. The purpose of the present study is relationship between leadership styles of coaches and sports actions of karate athletes. Material: The present study involves all active athletes of Super League karate in 91-92 season (N=100. The statistical sample was equal to statistical population (N=n. In order to collect information we used leadership style questionnaire Bos and Avlio (MLQ and questionnaire of Scanlan (SCMS. Internal validity questionnaire was approved by university professors and its reliability - by Cronbach's alpha test 0.86, and 0.79. Also for data analysis we used descriptive indicators of mean and standard deviation. Preliminary analysis of data proved normaldistribution by Kolmogorov-Smirnov test. And then, we used measurements by Pearson, Spearman, Mann-Whitney U, Wilcoxon T, Friedman correlation coefficient of significance level (P-0.05. Results: there are significant differences between athletes’ results and styles of leadership. There is significant correlation between the results with style Attraction (0.000, Idealized Influence (0.000, Inspirational (0.001, Intellectual stimulation (0.007, Individualized consideration (0.017, Exception Active (0.008 and Laissez-faire (0.041 (P- 0.05. Conclusions: for increased of athletes' results coach should use style Attraction, Idealized Influence , Inspirational , Intellectual stimulation , Individualized consideration, Exception Active and if coach wants to see success of his athletes at athletic fields he should comply the applied styles with sportsmen’s results.

  20. Studying the relationship between leadership style of coaches and sportsmanship commitment of athletes (A case study of professional athletes in I.R. I. Karate Super League

    Directory of Open Access Journals (Sweden)

    Shafiee Shahram

    2016-06-01

    Full Text Available Purpose: Today, when a group of people trying to reach the goal, manager and leader usually undertake the responsibility of the group. Coach renders influence on team members, while athletes work hard to achieve team goals. The purpose of the present study is relationship between leadership styles of coaches and sports actions of karate athletes. Material: The present study involves all active athletes of Super League karate in 91-92 season (N=100. The statistical sample was equal to statistical population (N=n. In order to collect information we used leadership style questionnaire Bos and Avlio (MLQ and questionnaire of Scanlan & et al (SCMS. Internal validity questionnaire was approved by university professors and its reliability - by Cronbach's alpha test 0.86, and 0.79. Also for data analysis we used descriptive indicators of mean and standard deviation. Preliminary analysis of data proved normaldistribution by Kolmogorov-Smirnov test. And then, we used measurements by Pearson, Spearman, Mann-Whitney U, Wilcoxon T, Friedman correlation coefficient of significance level (P<0.05. Results: there are significant differences between athletes’ results and styles of leadership. There is significant correlation between the results with style Attraction (0.000, Idealized Influence (0.000, Inspirational (0.001, Intellectual stimulation (0.007, Individualized consideration (0.017, Exception Active (0.008 and Laissez-faire (0.041 (P< 0.05. Conclusions: for increased of athletes' results coach should use style Attraction, Idealized Influence , Inspirational , Intellectual stimulation , Individualized consideration, Exception Active and if coach wants to see success of his athletes at athletic fields he should comply the applied styles with sportsmen’s results.

  1. Kinesio taping does not alter muscle torque, muscle activity or jumping performance in professional soccer players: A randomized, placebo-controlled, blind, clinical trial.

    Science.gov (United States)

    Dos Santos Glória, Igor Phillip; Politti, Fabiano; Junior, Ernesto Cesar Pinto Leal; Lucareli, Paulo Roberto Garcia; Herpich, Carolina Marciela; Antonialli, Fernanda Colella; de Paula Gomes, Cid André Fidelis; de Oliveira Gonzalez, Tabajara; Biasotto-Gonzalez, Daniela Aparecida

    2017-01-01

    Kinesio taping consists of the attachment of a thin elastic tape over specific muscles, the thickness of which is similar to that of the epidermis. The aim of the present study was to compare the effect of Kinesio taping and placebo taping on muscle torque, muscle activity and jumping performance soccer players. Thirty athletes were randomly allocated to two groups (Group A: Kinesio taping and Group B: placebo taping). The participants were instructed to perform the Hop test's and were submitted to an isokinetic evaluation of the knee extensors as well as an electromyographic evaluation of the retus femoris muscle of the dominant lower limb. Next, Kinesio taping was performed for the activation of the rectus femoris muscle in Group A and placebo taping was performed in Group B. The participants were reevaluated 30 minutes after taping and 24 hours after the first evaluation using the same tests. Intra-group and inter-group comparisons were made considering the three evaluation times. No statistically significant differences were found between groups at any evaluation time regarding the Hop test's, root mean square of the electromyographic signal or peak torque of the knee extensors of the dominant lower limb (p>0.05). Kinesio taping for the activation of the rectus femoris muscle has no effect on peak muscle torque, muscle activity or jumping performance among soccer players.

  2. Why "The Best Way of Learning to Coach the Game Is Playing the Game": Conceptualising "Fast-Tracked" High-Performance Coaching Pathways

    Science.gov (United States)

    Blackett, Alexander David; Evans, Adam; Piggott, David

    2017-01-01

    At the beginning of the 2013/2014 season in England and Wales, 90 head coaches of the 92 men's national professional football league clubs and 20 of the 22 men's professional rugby union clubs had tenure as a professional elite player in their respective sports. Moreover, Rynne [(2014). "'Fast track' and 'traditional path' coaches:…

  3. Anticipation in Soccer: A Systematic Review

    Directory of Open Access Journals (Sweden)

    Gonçalves Eder

    2015-06-01

    Full Text Available Purpose. The present study aimed to examine the current methods employed to assess anticipation in soccer players as well as to elicit the main findings of recent studies. Methods. The study was carried out in systematic review form and its sample comprised nine scientific papers published in academic journals. Only the studies involving soccer players (professionals and amateurs, except goalkeepers were included in this review. Results and conclusions. We observed that most of the studies employed video footage obtained from soccer matches, which are occluded at a given point for study participants to quickly and precisely elicit the positions of opponents, teammates and the ball as well as anticipate actions (dribbling, shooting, passing from surrounding players (teammates and opponents. In addition, the studies compared the performance of players from both high and low competitive levels in anticipation tasks.

  4. The epistemological chain in high-level adventure sports coaches

    OpenAIRE

    Collins, L.; Collins, D; Grecic, D.,

    2015-01-01

    This paper considers the personal epistemology of adventure sports coaches, the existence of the epistemological chain and its impact on professional judgment and decision-making. The epistemological chain’s role and operationalization in other fields is considered, offering clues to how it may manifest itself in the adventure sports coach context. High-level adventure sports coaches were interviewed and an interpretive phenomenological analysis approach was adopted for the interview transcri...

  5. ISOKINETIC KNEE MUSCLE STRENGTH PROFILE IN BRAZILIAN MALE SOCCER, FUTSAL, AND BEACH SOCCER PLAYERS: A CROSS-SECTIONAL STUDY

    Science.gov (United States)

    Mascarin, Naryana C.; Vargas, Valentine Z.; Vancini, Rodrigo L.; Andrade, Marília S.

    2017-01-01

    Background Anterior cruciate ligament injury is higher in soccer athletes as compared to athletes of other sports. Risk factors for anterior cruciate ligament injury include low knee hamstring/quadriceps strength ratio and bilateral strength deficits. Purpose To investigate isokinetic thigh muscles strength, hamstring/quadriceps strength ratio, and bilateral strength comparisons in athletes who participate in professional soccer, futsal, and beach soccer. Study Design Cross-sectional study. Methods Brazilian professional soccer (n=70), futsal (n=30), and beach soccer (n=12) players were isokinetically assessed to examine strength of knee extensors and flexors at 60 degrees/second in concentric mode, to measure peak torque of dominant and non-dominant limbs. Results In the dominant limb, for extensors muscles, futsal players presented significantly lower peak torque values (223.9 ± 33.4 Nm) than soccer (250.9 ± 43.0 Nm; p=0.02) and beach soccer players (253.1 ± 32.4 Nm; p=0.03). Peak torque for extensor muscles in the non-dominant limb was significantly lower in futsal (224.0 ± 35.8 Nm) than in beach soccer players (256.8 ± 39.8 Nm; p=0.03). Hamstring/quadriceps strength ratio for dominant limbs for futsal (57.6 ± 10.1%), soccer (53.5 ± 8.8%), and beach soccer (56.3 ± 8.4%) players presented no significant differences between groups; however, the mean values were lower than recommended values found in the literature. There were no strength deficits for any of the evaluated groups when compared bilaterally. Conclusions Futsal athletes presented lower values for quadriceps strength than soccer and beach soccer athletes. Futsal, soccer, and beach soccer players presented no strength asymmetries, but they presented with strength imbalance in hamstring/quadriceps strength ratio. Level of Evidence 3 PMID:29234562

  6. Coaching doctoral students

    DEFF Research Database (Denmark)

    Godskesen, Mirjam Irene; Kobayashi, Sofie

    2016-01-01

    In this paper we focus on individual coaching carried out by an external coach as a new pedagogical element that can impact doctoral students’ sense of progress in doctoral education. The study used a mixed methods approach in that we draw on quantitative and qualitative data from the evaluation...... of a project on coaching doctoral students. We explore how coaching can contribute to the doctoral students’ development of a broad set of personal competences and suggest that coaching could work as a means to engender self-management and improve relational competences. The analysis of the participants’ self......-reported gains from coaching show that doctoral students experience coaching as an effective method to support the doctoral study process. This study also provides preliminary empirical evidence that coaching of doctoral students can facilitate the doctoral study process so that the doctoral students experience...

  7. Supporting Universal Prevention Programs: A Two-Phased Coaching Model

    Science.gov (United States)

    Becker, Kimberly D.; Darney, Dana; Domitrovich, Celene; Keperling, Jennifer Pitchford; Ialongo, Nicholas S.

    2013-01-01

    Schools are adopting evidence-based programs designed to enhance students’ emotional and behavioral competencies at increasing rates (Hemmeter, Snyder, & Artman, 2011). At the same time, teachers express the need for increased support surrounding implementation of these evidence-based programs (Carter & Van Norman, 2010). Ongoing professional development in the form of coaching may enhance teacher skills and implementation (Noell et al., 2005; Stormont, Reinke, Newcomer, Darney, & Lewis, 2012). There exists a need for a coaching model that can be applied to a variety of teacher skill levels and one that guides coach decision-making about how best to support teachers. This article provides a detailed account of a two-phased coaching model with empirical support developed and tested with coaches and teachers in urban schools (Becker, Bradshaw, Domitrovich, & Ialongo, 2013). In the initial universal coaching phase, all teachers receive the same coaching elements regardless of their skill level. Then, in the tailored coaching phase, coaching varies according to the strengths and needs of each teacher. Specifically, more intensive coaching strategies are used only with teachers who need additional coaching supports whereas other teachers receive just enough support to consolidate and maintain their strong implementation. Examples of how coaches used the two-phased coaching model when working with teachers who were implementing two universal prevention programs (i.e., the PATHS® curriculum and PAX Good Behavior Game [PAX GBG]) provide illustrations of the application of this model. The potential reach of this coaching model extends to other school-based programs as well as other settings in which coaches partner with interventionists to implement evidence-based programs. PMID:23660973

  8. Determinants of labour migration of elite sport coaches.

    Science.gov (United States)

    Orlowski, Johannes; Wicker, Pamela; Breuer, Christoph

    2016-09-01

    Previous research examining labour migration in sport focused on athletes in professional team sports. The purpose of this study is to analyse the factors influencing the migration probability of elite sport coaches in Germany (i.e. national coaches, state coaches, and coaches at Olympic training bases). From a theoretical perspective, labour migration of athletes is affected by economic, social, political, competitive, geographic and cultural factors. This study examines whether these factors can be applied to coaches. Primary data were collected using an online survey of elite sport coaches in Germany. Applying a conjoint design, respondents were presented with 10 migration scenarios leading to a sample size of n = 1860 for the empirical analysis. In the scenarios, the coaching position openings abroad differed in terms of income level, contract length, weekly workload, responsibility for personnel, reputation of coaching job, career perspectives, sporting performance of athletes, distance from Germany, and predominant job language. Coaches were asked for their migration probability contingent on the specific scenario. On average, migration probability was 24.2%. The results of regression analysis showed that higher income, contracts of longer duration, responsibility for personnel and speaking the respective language significantly increased the migration probability, while distances of nine flight hours and more, lower reputation and career perspectives reduced it. The findings have implications for policy-makers: they indicate in what areas the situation of coaches needs improvement to increase the likelihood of retaining elite sport coaches in the German sport system.

  9. Soccer and Sudden Cardiac Death in Young Competitive Athletes: A Review.

    Science.gov (United States)

    Higgins, John P; Andino, Aldo

    2013-01-01

    Sudden cardiac death (SCD) in young competitive athletes (athletes at a 2.5 times higher risk. Soccer is the most popular sport in the world, played by people of all ages. However, unfortunately it is cardiovascular diseases such as hypertrophic cardiomyopathy and arrhythmogenic right ventricular cardiomyopathy that have subtly missed screening and claimed the lives of soccer stars such as Marc Vivien Foe and Antonio Puerta during live action on the field and on an internationally televised stage. This paper covers the physiological demands of soccer and the relationship between soccer and SCD. It also reviews the most common causes of SCD in young athletes, discusses the current guidelines in place by The Fédération Internationale de Football Association (FIFA) for screening among professional soccer players, and the precautions that have been put in place to prevent SCD on the field in professional soccer.

  10. Third Generation Coaching

    DEFF Research Database (Denmark)

    Stelter, Reinhard

    2016-01-01

    German abstract: Auf der Grundlage aktueller Sozialforschung, neuer Lerntheorien und Diskurse der Personalführung entfaltet sich ein neues Verständnis von Coaching und Coaching-Psychologie. In der dritten Generation wird Coaching aus gesellschaftlicher Perspektive betrachtet. Wenn sich die...

  11. Selected Soccer and Speedball Articles. Sports Articles Reprint Series. Third Edition.

    Science.gov (United States)

    Boyce, Roberta, Ed.; Lowe, Billye J., Ed.

    Presented is a collection of articles by outstanding authorities on soccer and speedball for girls and women. The articles were selected from 1958-72 "Division for Girls and Women's Sports Guides." Articles are organized under a) Lead-up and Modified Games, b) Teaching and Coaching Techniques, and c) Evaluation and Officiating. (Author/JB)

  12. Biochemical Changes from Preparation to Competitive Period in Soccer

    OpenAIRE

    ARISTOTELIS, Gioldasis

    2016-01-01

    The aim of the current study was to indicate the biochemical changes during the preparation and competitive soccer period. The literature review showed that biochemical parameters such as transaminases, enzymes and other factors change significantly from the preparation to the competitive period. The sample of the study included twenty five professional soccer players whose biochemical parameters assessed in the beginning of the preparation period, in the middle, in the end of the preparation...

  13. Psychological Gender and Emotional Intelligence in Youth Female Soccer Players

    OpenAIRE

    Rutkowska Katarzyna; Bergier Józef

    2015-01-01

    Many sports (for instance soccer) are stereotypically perceived as a male activity. Even so, more and more women decide to become competitive athletes. Since the theory of sport requires comprehensive explanations and the practice of sport needs clear guidelines, interdisciplinary studies into the nature of sport, including its psychological aspects, are necessary. Analysing the psychological profile of female soccer players, particularly those who are about to become professional athletes, c...

  14. The parent-coach/child-athlete relationship in youth sport: cordial, contentious, or conundrum?

    Science.gov (United States)

    Weiss, Maureen R; Fretwell, Susan D

    2005-09-01

    The roles of coach and parent are often synonymous in youth sport, but little data-based research has been conducted on the parent-coach/child-athlete relationship. Six boys in U-12 competitive soccer were interviewed regarding positive and negative aspects about playing for their father-coach. Similar questions were posed to father-coaches and two teammates. Inductive content analysis indicated that, among the benefits, sons identified perks, praise, technical instruction, understanding of ability level, insider information, involvement in decision making, special attention, quality time, and motivation. Costs of being coached by one's father included negative emotional responses, pressure/expectations, conflict, lack of understanding/empathy, criticism for mistakes, and unfair behavior. For father-coaches, positive themes included taking pride in son's achievements, reason for coaching, positive social interactions, opportunity to teach skills and values, enjoying coaching son, and quality time. Negatives included inability to separate parent-child from coach-player role, placing greater expectations and pressure on son, and showing differential attention toward son. While teammates perceived some favoritism by the parent-coach, they cited mostly positive instructional experiences. Results are discussed within motivational theories that highlight the influence of significant adults on children's psychosocial development in the physical domain.

  15. The Potential of Group Coaching for Leadership Learning

    Science.gov (United States)

    Flückiger, Bev; Aas, Marit; Nicolaidou, Maria; Johnson, Greer; Lovett, Susan

    2017-01-01

    Despite group coaching being used to facilitate goal-focused change in a range of organizational contexts, there is little research evidence of its use or efficacy in continuing professional development programs for educational leaders. In the first part of this article we define coaching and consider the benefits and challenges of several forms…

  16. Approaches to the Postgraduate Education of Business Coaches

    Science.gov (United States)

    McCarthy, Grace

    2010-01-01

    This paper focuses on the education and training of business coaches, specifically at the Masters/graduate level. The paper first reviews the knowledge and skills required of business coaches, comparing the recommendations of professional associations and the literature. Next the paper reviews the approaches to education which are best suited to…

  17. The Coaching Relationship - and beyond

    Directory of Open Access Journals (Sweden)

    Ole Michael Spaten

    2016-11-01

    Full Text Available In the coaching context of an ongoing search for evidence-based research, and increasing interest in the ‘active ingredients’ of coaching the impetus for ‘the coaching relationship – and beyond’ was the quest for deeper understanding of the coaching relationship as well as its infuence on the outcomes of coaching. It is a presentation, on factors specifically related to engagement of the coachee and building effective coaching relationships: (a a study examining the power relations between employee coachee and coach from the middle manager coach perspective, highlighting coaching relationship quality as a necessity for moments of symmetry and equality in fruitful coaching; (b a study on the diversity factor of coach age, finding that age was not significant in executive coachées coach selection, however age signified credibility and experience, with possible implications for young executive coaches in organisations. Broader topics include (c discussion of a Systematic Review study investigating those coaching psychologists’ attributes effective in productive coaching relationships, and how to facilitate desired coaching outcomes, suggesting desirability of expansion of concrete outcome measures from the existing coachées’ satisfaction evaluation metrics; and finally (d an overview of coaching relationship research in the context of prevailing assumptions and issues in coaching, offering implications for future coaching research and coaching practice.

  18. The Social Validity of Bug-in-Ear Coaching: Findings from Two Studies Implemented in Inclusive Early Childhood Environments

    Science.gov (United States)

    Ottley, Jennifer Riggie; Coogle, Christan Grygas; Rahn, Naomi L.

    2015-01-01

    Coaching is a promising method for providing professional development, which takes many forms. One such form is real-time coaching through bug-in-ear technology. This study explored the social validity of bug-in-ear coaching when provided as a form of professional development with pre-service and in-service early childhood educators. Data from two…

  19. Changes in Coaching Study Design Shed Light on How Features Impact Teacher Practice. Lessons from Research

    Science.gov (United States)

    Killion, Joellen

    2016-01-01

    Teacher coaching is a powerful form of professional learning that improves teaching practices and student achievement, yet little is known about the specific aspects of coaching programs that are more effective. Researchers used a blocked randomized experiment to study the effects of one-to-one coaching on teacher practice. When pooled across all…

  20. Promoting Student-Teacher Interactions: Exploring a Peer Coaching Model for Teachers in a Preschool Setting

    Science.gov (United States)

    Johnson, Stacy R.; Finlon, Kristy J.; Kobak, Roger; Izard, Carroll E.

    2017-01-01

    Peer coaching provides an attractive alternative to traditional professional development for promoting classroom quality in a sustainable, cost-effective manner by creating a collaborative teaching community. This exploratory study describes the development and evaluation of the Colleague Observation And CoacHing (COACH) program, a peer coaching…

  1. Working with values in coaching

    DEFF Research Database (Denmark)

    Stelter, Reinhard

    2016-01-01

    This chapter deals with the concept of values as an essential point of reference for coaching, mentoring and developmental and professional dialogues. Values give individuals a fundamental orientation for their work and their life in general. In that sense values can be seen as probably the most...... central issue in coaching, which is the purpose of the whole section of this handbook. To argue for the importance of this focus on values, a brief analysis of our current society and of today’s rapid societal changes will be presented. In times of hypercompexity and huge challenges on the individual...... to stay on track, value reflections are seen as a fundamental basis for our sensemaking and our fundamental orientation in life. Values are the entrance point to our lived knowledge and practical wisdom. According to Flyvbjerg (2001, p. 4), instrumental rationality needs to be balanced by value...

  2. Perspectives on Effective Coaching by Those Who Have Been Coached

    Science.gov (United States)

    Carter, Alison; Blackman, Anna; Hicks, Ben; Williams, Matthew; Hay, Rachel

    2017-01-01

    Studies on coaching have largely explored effectiveness from the perspective of a coach or employing organization rather than that of the employee or coachee. There has also been a focus on "successful" coaching, but little is known about unsuccessful coaching or the hindrances to achieving coaching success. Many empirical studies on…

  3. Behavioral Characteristics of "Favorite" Coaches: Implications for Coach Education

    Science.gov (United States)

    Stewart, Craig; Owens, Lynn

    2011-01-01

    The purpose of this paper was to use athletes' and former athletes' memories of their favorite coach to improve coach education curriculum. Player preferences of coaching behavior can affect both their attitudes toward their sport experiences and team performance. By identifying positive coaching behaviors as recalled by athletes, coach educators…

  4. Exercise physiology and nutritional perspectives of elite soccer refereeing.

    Science.gov (United States)

    Schenk, Kai; Bizzini, Mario; Gatterer, Hannes

    2017-10-05

    Referees are an integral part of soccer and their performance is fundamental for regular match flow, irrespective of the competition level or age classes. So far, scientific interest was mainly limited to aspects of exercise physiology and match performance of soccer referees, whereas recommendations for nutrition were adopted from active professional soccer. In contrast to elite soccer players most referees are non-professional and engaged in different occupations. Furthermore, elite referees and soccer players differ in regard to age, body composition, aerobic capacity and training load. Thus, referees' caloric needs and recommended daily carbohydrate intake may generally be lower compared to active soccer players, with higher intakes limited to periods of increased training load and match days or for referees engaged in physical demanding occupations. With respect to fluid intake, pre-match and in-match hydration strategies generally valid in sports are recommended also for referees to avoid cognitive and physical performance loss, especially when officiating in extreme climates and altitude. In contrast to elite soccer, professional assistance concerning nutrition and training is rarely available for national elite referees of most countries. Therefore, special attention on education about adequate nutrition and fluid intake, about the dietary prevention of deficiencies (iron in female referees, vitamin D irrespective of sex and age) and basic precautions for travels abroad is warranted. In conclusion, the simple adoption of nutritional considerations from active soccer for referees may not be appropriate. Recommendations should respect gender differences, population specific physical characteristics and demands just as well as individual characteristics and special needs. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.

  5. Group Health Coaching: Strengths, Challenges, and Next Steps

    Science.gov (United States)

    Wolever, Ruth Q.; Manning, Linda; Elam, Roy; Moore, Margaret; Frates, Elizabeth Pegg; Duskey, Heidi; Anderson, Chelsea; Curtis, Rebecca L.; Masemer, Susan; Lawson, Karen

    2013-01-01

    There is great need for cost effective approaches to increase patient engagement and improve health and well-being. Health and wellness coaching has recently demonstrated great promise, but the majority of studies to date have focused on individual coaching (ie, one coach with one client). Newer initiatives are bringing a group coaching model from corporate leadership development and educational settings into the healthcare arena. A group approach potentially increases cost-effective access to a larger number of clients and brings the possible additional benefit of group support. This article highlights some of the group coaching approaches currently being conducted across the United States. The group coaching interventions included in this overview are offered by a variety of academic and private sector institutions, use both telephonic and in-person coaching, and are facilitated by professionally trained health and wellness coaches as well as trained peer coaches. Strengths and challenges experienced in these efforts are summarized, as are recommendations to address those challenges. A working definition of “Group Health and Wellness Coaching” is proposed, and important next steps for research and for the training of group coaches are presented. PMID:24416678

  6. Effect of increasing maximal aerobic exercise on serum gonadal hormones and alpha-fetoprotein in the luteal phase of professional female soccer players

    Science.gov (United States)

    Otağ, Aynur; Hazar, Muhsin; Otağ, İlhan; Beyleroğlu, Malik

    2016-01-01

    [Purpose] The performance of female athletes during their menstrual period has attracted the attention of researchers for many years. It is known that the menstrual period changes with exercise. Alpha-fetoprotein (AFP) is an oncofetal protein. In this study, the effect of maximal aerobic exercise in the luteal phase on some hormones and AFP in female athletes was researched. [Subjects and Methods] Twelve volunteers and healthy female footballers with normal menstrual cycles volunteered for this study as subjects. All the participants performed a shuttle run test. Blood samples were taken before, after, and one hour after exercise. Serum AFP, estrogen, progesterone, follicle-stimulating hormone (FSH), and luteinizing hormone (LH) values were measured using an auto analyzer and original kits. Heart rate measurements were performed before and after the exercise. [Results] AFP activity had significantly decreased after 1 h of recovery from the exercise in the female soccer players, and estrogen and LH activity had significantly increased immediately after the exercise. Progesterone activity had significantly decreased immediately after the exercise. FSH values had significantly increased immediately after the exercise. [Conclusion] The results of the present study show there were significant decreases in the values of AFP, which is a cancer parameter, 1 hour after the exercise. This result may be valuable in future physiotherapy studies on the relationship between exercise and cancer. PMID:27134362

  7. The effects of a coaching project in nursing on the coaches' training motivation, training outcomes, and job performance: an experimental study.

    Science.gov (United States)

    Kushnir, Talma; Ehrenfeld, Mally; Shalish, Yael

    2008-06-01

    Coaching is known to benefit both the trainees and the coaches, yet research in nursing has mainly focused on the benefits to the trainees. There is little knowledge regarding the psycho-educational effects of being a coach. To determine the effects of participation in a coaching project in nursing, on the coaches' training motivation, skills acquisition, self-efficacy, professional attitudes, transfer of training and professional performance. It was hypothesized that participation in the project would significantly improve all these outcomes among the coaches but not in a control group. An experimental study. An innovative educational program was instituted over the last 10 years in an academic School of Nursing in Israel. Recent graduates in nursing (i.e., coaches) assisted junior students in their studies. All graduates of one class were randomly assigned to either the experimental (22 coaches) or control group (30 similar graduates who would not be coaches). The groups were similar in the demographic details and grade-point average. Research instruments included self-report measures and performance in a simulation test (Objective Structured Clinical Examination). Compared with the control group the coaches improved in training motivation, self-efficacy and behavioral transfer of several nursing skills. Participation also prevented deterioration of some skills (e.g., medication management, communication skills). This stability was in contrast with the decline in most outcomes in the control group. The coaches also obtained positive behavioral transfer and demonstrated superior professional performance (OSCE). Professional attitudes were not affected. Participation in the project enabled the coaches to enhance some of their professional skills, and improve their training motivation and self-efficacy in performing complex nursing skills. Coaching made an important contribution in facilitating the nurses' passage from school to the professional work field and could

  8. Interaction between Dutch soccer teams and fans: a mathematical analysis through cooperative game theory

    NARCIS (Netherlands)

    Hou, D.; Driessen, Theo

    2012-01-01

    Inspired by the first lustrum of the Club Positioning Matrix (CPM) for professional Dutch soccer teams, we model the interaction between soccer teams and their potential fans as a cooperative cost game based on the annual voluntary sponsorships of fans in order to validate their fan registration in

  9. Mood states of soccer players in the english leagues: reflections of an increasing workload

    Directory of Open Access Journals (Sweden)

    R Thatcher

    2010-06-01

    Full Text Available The aim of this investigation was to assess whether the demands of the modern English competitive soccer season would be reflected in the mood states of professional soccer players. Sixty-nine male participants either activity competing in English soccer leagues or resident in England were recruited and grouped accordingly as professional soccer players, university level soccer players, Sunday league soccer players, or non-sporting controls. On three separate occasions; at the beginning, at the middle, and finally towards the end of the English soccer season, participants completed both the Profile of Mood States (POMS questionnaire as well as a questionnaire related to their teams’ performance in addition to their perceived life stress. Results showed the POMS scores to differ over the season in relation to the groups’ standard of competition. ANOVAs demonstrated this pattern to be significant for the dependent measures of tension, depression, and confusion with significant group by time interactions (95% level of confidence. At the outset of the season professionals had the most positive POMS profile, however, as the season progressed they showed the greatest change towards a negative profile. These results indicate that English soccer is placing professional players at a predisposition of demonstrating POMS commensurate with negative adaptation to training, having important implications for their long-term performance and health.

  10. Understanding Soccer Team Supporters' Behavior and Culture in a Globalized Society from Social Learning Theory

    Science.gov (United States)

    Lee, Seungbum; Han, Keunsu

    2012-01-01

    Whereas there have been many academic studies on European soccer team supporters, relatively few studies have looked at supporters in Asia, especially regarding their supporting behavior and culture. Broadly, the purpose of this paper is to describe the behavior and culture of supporters of the Korean professional soccer league (K-League).…

  11. Soccer injuries in children

    Energy Technology Data Exchange (ETDEWEB)

    Paterson, Anne [Royal Belfast Hospital for Sick Children, Radiology Department, Belfast (United Kingdom)

    2009-12-15

    Soccer is the most popular sport in the world, with FIFA recognising more than 265 million amateur players. Despite the fact that soccer is a contact sport, it is perceived to be relatively safe to play, a factor that has contributed to its status as the fastest growing team sport in the USA. Acute and minor injuries predominate in the statistics, with contusions and abrasions being the most commonly recorded. As would be expected, the majority of soccer injuries are to the lower limbs, with serious truncal and spinal trauma being rare. This article examines the type and anatomic location of injuries sustained by children and adolescents who play soccer, and the main mechanisms whereby such injuries occur. The risk factors underpinning injury occurrence are considered, along with injury avoidance tactics. (orig.)

  12. Sport, physical education and coaching in health

    NARCIS (Netherlands)

    C.H. Bruining; Dr. Johan de Jong

    2015-01-01

    Main goal of the Sport Physical Education And Coaching in Health Project (SPEACH/Erasmus+ sport 557083-EPP-1-2014-1-NL-SPO-SCP) is to increase awareness and behavioural change in sport professionals and European citizens towards an active and healthy lifestyle. Sedentariness and physical inactivity

  13. Conceptualizing the Adventure-Sports Coach

    Science.gov (United States)

    Collins, Loel; Collins, Dave

    2012-01-01

    As a comparatively recent development, the adventure-sports coach struggles for a clear and distinct identity. The generic term "instructor" no longer characterizes the role and function of this subgroup of outdoor professionals. Indeed, although the fields of adventure/outdoor education and leadership are comparatively well researched,…

  14. Examining the relationships between challenge and threat cognitive appraisals and coaching behaviours in football coaches.

    Science.gov (United States)

    Dixon, Martin; Turner, Martin J; Gillman, Jamie

    2017-12-01

    Previous research demonstrates that sports coaching is a stressful activity. This article investigates coaches' challenge and threat cognitive appraisals of stressful situations and their impact on coaching behaviour, using Blascovich and Mendes' (2000) biopsychosocial model as a theoretical framework. A cross-sectional correlational design was utilised to examine the relationships between irrational beliefs (Shortened general attitude and belief scale), challenge and threat appraisals (Appraisal of life events scale), and coaching behaviours (Leadership scale for sports) of 105 professional football academy coaches. Findings reveal significant positive associations between challenge appraisals and social support, and between threat appraisals and autocratic behaviour, and a significant negative association between threat appraisals and positive feedback. Results also show that higher irrational beliefs are associated with greater threat, and lesser challenge cognitive appraisals. However, no associations were revealed between irrational beliefs and challenge cognitive appraisals. Additionally, findings demonstrate a positive relationship between age and training and instruction. Results suggest that practitioners should help coaches to appraise stressful situations as a challenge to promote positive coaching behaviours.

  15. The effects of comprehensive warm-up programs on proprioception, static and dynamic balance on male soccer players.

    Directory of Open Access Journals (Sweden)

    Abdolhamid Daneshjoo

    Full Text Available PURPOSE: The study investigated the effects of FIFA 11+ and HarmoKnee, both being popular warm-up programs, on proprioception, and on the static and dynamic balance of professional male soccer players. METHODS: Under 21 year-old soccer players (n = 36 were divided randomly into 11+, HarmoKnee and control groups. The programs were performed for 2 months (24 sessions. Proprioception was measured bilaterally at 30°, 45° and 60° knee flexion using the Biodex Isokinetic Dynamometer. Static and dynamic balances were evaluated using the stork stand test and Star Excursion Balance Test (SEBT, respectively. RESULTS: The proprioception error of dominant leg significantly decreased from pre- to post-test by 2.8% and 1.7% in the 11+ group at 45° and 60° knee flexion, compared to 3% and 2.1% in the HarmoKnee group. The largest joint positioning error was in the non-dominant leg at 30° knee flexion (mean error value = 5.047, (p<0.05. The static balance with the eyes opened increased in the 11+ by 10.9% and in the HarmoKnee by 6.1% (p<0.05. The static balance with eyes closed significantly increased in the 11+ by 12.4% and in the HarmoKnee by 17.6%. The results indicated that static balance was significantly higher in eyes opened compared to eyes closed (p = 0.000. Significant improvements in SEBT in the 11+ (12.4% and HarmoKnee (17.6% groups were also found. CONCLUSION: Both the 11+ and HarmoKnee programs were proven to be useful warm-up protocols in improving proprioception at 45° and 60° knee flexion as well as static and dynamic balance in professional male soccer players. Data from this research may be helpful in encouraging coaches or trainers to implement the two warm-up programs in their soccer teams.

  16. Building successful student-athlete coach relationships: examining coaching practices and commitment to the coach

    National Research Council Canada - National Science Library

    Rezania, Davar; Gurney, Robert

    2014-01-01

    .... We examined the impact of commitment to the coach on the coaching outcome of in-role behaviour, and the influence of coaching practices, of information sharing, training, and encouraging teamwork...

  17. Knowledge and perceptions of sport psychology within English soccer.

    Science.gov (United States)

    Pain, Matthew A; Harwood, Chris G

    2004-09-01

    The aim of the present study was to examine knowledge and perceptions of applied sport psychology within English soccer. National coaches (n = 8), youth academy directors (n = 21) and academy coaches (n = 27) were surveyed using questionnaire and interview methods. Questionnaire results revealed a lack of knowledge of sport psychology that appeared to underpin some of the most significant barriers to entry for sport psychologists. These included lack of clarity concerning the services of a sport psychologist, problems fitting in and players' negative perceptions of sport psychology. Overall, however, lack of finance was the highest rated barrier. Six barrier dimensions emerged from the interview data: negative perceptions of psychology, lack of sport psychology knowledge, integrating with players and coaching staff, role and service clarity, practical constraints, and perceived value of sport psychology. These findings were broadly compatible with the survey data, with finance emerging as a major barrier and misconceptions of sport psychology being common. Our conclusions are discussed in relation to the practical implications of the study for both applied research and the provision of sport psychology services within English soccer.

  18. Necessidades de formação para o exercício profissional na perspectiva do treinador de Futebol em função da sua experiência e nível de formação Training needs for professional practice in the perspective of the football coach according to its experience and level of education

    Directory of Open Access Journals (Sweden)

    Gabriel Barros da Cunha

    2010-12-01

    Full Text Available O objetivo do presente estudo consistiu no reconhecimento das necessidades de formação das competências profissionais de treinadores de Futebol em função dos anos de experiência profissional e da formação federativa. A amostra foi constituída por 81 treinadores portugueses. A recolha dos dados foi realizada através da aplicação de um questionário após validação de construção e de conteúdo. Como procedimentos estatísticos, recorremos ao teste paramétrico One-Way ANOVA para a comparação entre dois grupos e para mais de dois grupos foram estimados os Post-Hocs com recurso ao teste de Tukey. Os resultados mostraram que os treinadores com formação federativa mais elevada, níveis II e III, reconhecem menores necessidades de formação que os treinadores sem formação nas áreas do Treino, Competição e Papel de Formador. Por sua vez, os treinadores mais experientes reconheceram menores necessidades de formação nos domínios do Treino, da Gestão Desportiva e do Papel de Formador em relação aos menos experientes.The aim of the present study consisted in the recognition of Football coaches' perceptions of training needs related to the professional competences according to their experience and level of certification, as coach. A sample of 81 Portuguese coaches answered a questionnaire applied after its construction and content validation. The statistical procedure used was One-Way ANOVA to make comparison between two groups and the Tukey' test for post-hoc comparisons. The results showed that the coaches with the highest level of certification, levels II and III, recognized lower training needs than coaches without certification in the areas of Training, Competition and Coach Education. Moreover, the more experienced coaches recognized, also, lower training needs than less experienced coaches in the areas of Training, Sport Management and Coach Education.

  19. Postural stability decreases in elite young soccer players after a competitive soccer match

    DEFF Research Database (Denmark)

    Brito, João; Fontes, Ivo; Ribeiro, Fernando

    2012-01-01

    To investigate the effects of an official soccer match on postural stability in youth elite soccer players.......To investigate the effects of an official soccer match on postural stability in youth elite soccer players....

  20. The Relationship Between Intensity Indicators in Small-Sided Soccer Games.

    Science.gov (United States)

    David, Casamichana; Julen, Castellano

    2015-06-27

    The aim of the present study was to examine the relationship between different kinds of intensity indicators in small-sided soccer games. This descriptive correlational study included 14 semi-professional male soccer players (21.3 ± 2.3 years, 174 ± 4.0 cm, 73.4 ± 5.1 kg) from the same team. The players were monitored by means of heart rate monitors and GPS devices during 27 small-sided games of nine different formats, yielding a total of 217 recordings. After each game the Borg scale was used to give a rate of perceived exertion (RPE). The internal load indicators were the mean heart rate relative to the individual maximum (%HRmean) and the RPE, while those for the external load were the player load, total distance covered, distance covered in two intensity ranges (>18 km·h-1 and >21 km·h-1), and frequency of effort (in the same two intensity ranges). There was a significant moderate correlation (r=0.506) between the two internal load measurements (%HRmean and RPE). Although there were significant correlations of different degrees between various external load measurements, only the player load was significantly correlated with the internal load indicators (r=0.331 with %HRmean and r=0.218 with RPE). During training programes of this kind, it is necessary to consider a range of intensity indicators so as to obtain complementary information. This will enable coaches to more accurately assess the load imposed on players and therefore optimize the training process.

  1. The Relationship Between Intensity Indicators in Small-Sided Soccer Games

    Directory of Open Access Journals (Sweden)

    Casamichana David

    2015-06-01

    Full Text Available The aim of the present study was to examine the relationship between different kinds of intensity indicators in small-sided soccer games. This descriptive correlational study included 14 semi-professional male soccer players (21.3 ± 2.3 years, 174 ± 4.0 cm, 73.4 ± 5.1 kg from the same team. The players were monitored by means of heart rate monitors and GPS devices during 27 small-sided games of nine different formats, yielding a total of 217 recordings. After each game the Borg scale was used to give a rate of perceived exertion (RPE. The internal load indicators were the mean heart rate relative to the individual maximum (%HRmean and the RPE, while those for the external load were the player load, total distance covered, distance covered in two intensity ranges (>18 km·h-1 and >21 km·h-1, and frequency of effort (in the same two intensity ranges. There was a significant moderate correlation (r=0.506 between the two internal load measurements (%HRmean and RPE. Although there were significant correlations of different degrees between various external load measurements, only the player load was significantly correlated with the internal load indicators (r=0.331 with %HRmean and r=0.218 with RPE. During training programes of this kind, it is necessary to consider a range of intensity indicators so as to obtain complementary information. This will enable coaches to more accurately assess the load imposed on players and therefore optimize the training process.

  2. Analytical modelling of soccer heading

    Indian Academy of Sciences (India)

    Heading occur frequently in soccer games and studies have shown that repetitive heading of the soccer ball could result in degeneration of brain cells and lead to mild traumatic brain injury. This study proposes a two degree-of-freedom linear mathematical model to study the impact of the soccer ball on the brain. The model ...

  3. Coaching Salaries: Approaching Equality

    Science.gov (United States)

    Grebe, Keith R.; Leslie, David K.

    1976-01-01

    A survey conducted in the Iowa public schools indicates that the coaches of teams for girls and teams for boys tend to be paid equal salaries when the teams are of the same sports, but because fewer terms of the so-called major sports are offered for girls than for boys, there are presently fewer high paying coaching opportunities for women than…

  4. Coaching i perspektiv

    DEFF Research Database (Denmark)

    Bogen er en grundbog, der sætter coaching ind i et større perspektiv og en bredere sammenhæng.......Bogen er en grundbog, der sætter coaching ind i et større perspektiv og en bredere sammenhæng....

  5. Coaching for viderekomne

    DEFF Research Database (Denmark)

    Skytte Gørtz, Kim Erik

    Bogen går i dybden med begrebet om coaching i en undersøgelse af, hvilken funktion og betydning filosofi kan have på og i coachprocessen......Bogen går i dybden med begrebet om coaching i en undersøgelse af, hvilken funktion og betydning filosofi kan have på og i coachprocessen...

  6. Coaching som styringsteknologi

    DEFF Research Database (Denmark)

    Pedersen, Anita Monnerup

    2010-01-01

    Coaching er ikke et neutralt værktøj, men producerer begrænsninger og muligheder for, hvad der kan tales om......Coaching er ikke et neutralt værktøj, men producerer begrænsninger og muligheder for, hvad der kan tales om...

  7. Coaching Barometret 2009

    DEFF Research Database (Denmark)

    Wittrock, Christian; Didriksen, Vibeke; Stelter, Reinhard

    2009-01-01

    Coaching synes udbredt i danske organisationer og anvendes tilsyneladende i et utal af sammenhænge og på alle niveauer i organisationen. Blandt de adspurgte HR-ansvarlige er der generelt stor tilfredshed med coaching. Nærværende undersøgelse udgør et første overbliksbillede, som kan lede videre til...

  8. Coaching af dit studieliv

    DEFF Research Database (Denmark)

    Hansen, Rasmus Thorning

    2008-01-01

    En generel beskrivelse af de problemer specialestuderende sidder med og hvorledes coaching kan hjælpe med at (gen)skabe motivation og fokus......En generel beskrivelse af de problemer specialestuderende sidder med og hvorledes coaching kan hjælpe med at (gen)skabe motivation og fokus...

  9. Coaches as System Leaders

    Science.gov (United States)

    Fullan, Michael; Knight, Jim

    2011-01-01

    The role of school leadership--of principals and coaches--must be played out on a systems level to get widespread and sustainable improvement. Successful, whole-system education reform relies on capacity building, teamwork, pedagogy, and systemic reform. The strategies of good coaches and the right drivers for whole-system reform go hand in hand.…

  10. The Student Success Coach

    Science.gov (United States)

    Neuhauser, Claudia; Weber, Kendra

    2011-01-01

    An innovative position, a Student Success Coach, was created in response to a newly developed undergraduate-degree program on the recently established University of Minnesota Rochester campus. Student Success Coaches serve as the link between the academic and student affairs sides of the campus. They interact closely with students and faculty to…

  11. Integral transformational coaching

    NARCIS (Netherlands)

    Keizer, W.A.J.; Nandram, S.S.

    2009-01-01

    In Chap. 12, Keizer and Nandram present the concept of Integral Transformational Coaching based on the concept of Flow and its effects on work performance. Integral Transformational Coaching is a method that prevents and cures unhealthy stress and burnout. They draw on some tried and tested

  12. Quality Coaching Counts

    Science.gov (United States)

    Gould, Daniel

    2016-01-01

    Scholastic sport is a double-edged sword that can have positive or negative effects. Whether those effects are positive or negative depends on those who wield that sword--chiefly, the school's sports coach. While it is clear that coaches make a difference in ensuring that educational athletics lead to beneficial outcomes for student-athletes, a…

  13. Severe musculoskeletal time-loss injuries and symptoms of common mental disorders in professional soccer: a longitudinal analysis of 12-month follow-up data

    NARCIS (Netherlands)

    Kiliç, Ö; Aoki, H.; Goedhart, E.; Hägglund, M.; Kerkhoffs, G. M. M. J.; Kuijer, P. P. F. M.; Waldén, M.; Gouttebarge, V.

    2017-01-01

    Psychological factors have shown to be predictors of injury in professional football. However, it seems that this is a two-way relationship, as severe musculoskeletal time-loss injuries have shown to be associated with the onset of symptoms of common mental disorders (CMD). There is no longitudinal

  14. Physique and Body Composition in Soccer Players across Adolescence

    Science.gov (United States)

    Nikolaidis, Pantelis Theodoros; Vassilios Karydis, Nikos

    2011-01-01

    Purpose Although the contribution of physique and body composition in soccer performance was recognized, these parameters of physical fitness were not well-studied in adolescent players. Aim of this study was to investigate physique and body composition across adolescence. Methods Male adolescents (N=297 aged 12.01–20.98 y), classified into nine one-year age-groups, child (control group, N=16 aged 7.34–11.97 y) and adult players (control group, N=29 aged 21.01–31.59 y), all members of competitive soccer clubs, performed a series of anthropometric measures (body mass, height, skinfolds, circumferences and girths), from which body mass index (BMI), percentage of body fat (BF%), fat mass (FM), fat free mass (FFM) and somatotype (Heath-Carter method) were calculated. Results Age had a positive association with FM (r=0.2, PSomatotype components changed across adolescence as well; age was linked to endomorphy (r=−0.17, P=0.005), mesomorphy (r=0.14, P=0.019) and ectomorphy (r=−0.17, P=0.004). Compared with age-matched general population, participants exhibited equal body mass, higher stature, lower body mass index and lower BF. Conclusion During adolescence, soccer players presented significant differences in terms of body composition and physique. Thus, these findings could be employed by coaches and fitness trainers engaged in soccer training in the context of physical fitness assessment and talent identification. PMID:22375222

  15. Psychological predictors of sport injuries among junior soccer players.

    Science.gov (United States)

    Johnson, U; Ivarsson, A

    2011-02-01

    Previous researches have established models that specify psychological factors that could predict sport injuries. One example is Williams and Andersen's stress-injury model stressing factors such as anxiety, negative life stress and few coping resources. The purpose of the current study was to find psychological factors that could lead to an increased injury risk among junior soccer players, in addition to construct an empirical model of injury risk factors for soccer players. The participants were 108 male and female soccer players (m=17, 6) studying at soccer high schools in southwest Sweden. Five questionnaires were used, State Trait Anxiety Inventory, Sport Anxiety Scale, Life Events Survey for Collegiate Athletes, Athletic Coping Skills Inventory-28 and Swedish universities Scales of Personality. Injury record was collected by athletic trainers at the schools during a period of 8 months. The result suggested four significant predictors that together could explain 23% of injury occurrence. The main factors are life event stress, somatic trait anxiety, mistrust and ineffective coping. These findings partly support Williams and Andersen's stress-injury model and are organized into an empirical model. Recommendations are given to sport medicine teams and coaches concerning issues in sport injury prevention. © 2010 John Wiley & Sons A/S.

  16. Coaching af nystartede universitetsstuderende

    DEFF Research Database (Denmark)

    Spaten, Ole Michael; Løkken, Lillith Olesen; Kyndesen, Anna Imer

    2011-01-01

    Mål: At undersøge hvorvidt fire coachingpsykologiske sessioner kunne reducere stress, angst og depressions niveau, samt forøge velvære hos 1.semesters studerende. At belyse hvilken betydning coaching får for de studerende. Design: Mixed method design med før- og eftertest, samt kontrolgruppe, (N=52......). Kvalitative interviews med fire deltagere før og efter coaching interventionen. Metode: Ni erfarne coaches gennemførte fire sessioner med 52 første semesters studerende fra Aalborg universitet. Deltagerne udfyldte DASS-21, Subjective Wellbeing Scale og Adult Hope Scale før og efter coaching interventionerne....... De kvalitative interviews blev analyseret med Interpretative Phenomenological Analysis (IPA). Resultater: En markant lavere stigning i depressionsniveau (DASS-21) hos coaching gruppen. Angstniveauet faldt i begge grupper, men et større fald i coachinggruppen end i ventelistegruppen. Håb-niveauet steg...

  17. Physiological and Physical Effects of Different Milk Protein Supplements in Elite Soccer Players

    National Research Council Canada - National Science Library

    Lollo, Pablo Christiano Barboza; Amaya-Farfan, Jaime; de Carvalho-Silva, Luciano Bruno

    2011-01-01

    .... This study was designed to compare the effects produced by three types of protein supplements on body composition, biochemical parameters and performance of a top Brazilian professional soccer team...

  18. Severe musculoskeletal time-loss injuries and symptoms of common mental disorders in professional soccer: a longitudinal analysis of 12-month follow-up data.

    Science.gov (United States)

    Kiliç, Ö; Aoki, H; Goedhart, E; Hägglund, M; Kerkhoffs, G M M J; Kuijer, P P F M; Waldén, M; Gouttebarge, V

    2017-07-11

    Psychological factors have shown to be predictors of injury in professional football. However, it seems that this is a two-way relationship, as severe musculoskeletal time-loss injuries have shown to be associated with the onset of symptoms of common mental disorders (CMD). There is no longitudinal study performed exploring this interaction between symptoms of CMD and injuries. The purpose of this study was to explore the interaction between severe musculoskeletal time-loss injuries and symptoms of CMD in professional football players over a 12-month period. Players were recruited by their national players' unions in five European countries. Symptoms of CMD included in the study were related to distress, anxiety/depression, sleep disturbance and adverse alcohol use. A total of 384 professional football players were enrolled in the study, of whom 262 (68%) completed the 12-month follow-up period. The mean age of the participants at baseline was 27 ± 5 years, and they had played professional football for 8 ± 5 years on average. Symptoms of CMD at baseline were not associated with the onset of severe musculoskeletal time-loss injuries during the follow-up period with relative risks (and 95% CI) ranging from 0.6 (0.3-1.0) to 1.0 (0.5-2.2). In contrast, severe musculoskeletal time-loss injuries reported at baseline were associated with the onset of symptoms of CMD during the follow-up period with relative risks ranging from 1.8 (0.8-3.7) to 6.9 (4.0-11.9). No relationship was found between symptoms of CMD and the onset of severe musculoskeletal time-loss injuries. However, professional football players who suffered from severe musculoskeletal time-loss injuries are likely to develop subsequent symptoms of CMD. This study emphasizes the need for an interdisciplinary medical approach, which not only focuses on the physical but also on the mental health of professional football players. An early identification of players at risk of symptoms of CMD, such as those

  19. Prognostic factors for specific lower extremity and spinal musculoskeletal injuries identified through medical screening and training load monitoring in professional football (soccer): a systematic review.

    Science.gov (United States)

    Hughes, Tom; Sergeant, Jamie C; Parkes, Matthew J; Callaghan, Michael J

    2017-01-01

    Medical screening and load monitoring procedures are commonly used in professional football to assess factors perceived to be associated with injury. To identify prognostic factors (PFs) and models for lower extremity and spinal musculoskeletal injuries in professional/elite football players from medical screening and training load monitoring processes. The MEDLINE, AMED, EMBASE, CINAHL Plus, SPORTDiscus and PubMed electronic bibliographic databases were searched (from inception to January 2017). Prospective and retrospective cohort studies of lower extremity and spinal musculoskeletal injury incidence in professional/elite football players aged between 16 and 40 years were included. The Quality in Prognostic Studies appraisal tool and the modified Grading of Recommendations Assessment, Development and Evaluation synthesis approach was used to assess the quality of the evidence. Fourteen studies were included. 16 specific lower extremity injury outcomes were identified. No spinal injury outcomes were identified. Meta-analysis was not possible due to heterogeneity and study quality. All evidence related to PFs and specific lower extremity injury outcomes was of very low to low quality. On the few occasions where multiple studies could be used to compare PFs and outcomes, only two factors demonstrated consensus. A history of previous hamstring injuries (HSI) and increasing age may be prognostic for future HSI in male players. The assumed ability of medical screening tests to predict specific musculoskeletal injuries is not supported by the current evidence. Screening procedures should currently be considered as benchmarks of function or performance only. The prognostic value of load monitoring modalities is unknown.

  20. Building successful student-athlete coach relationships: examining coaching practices and commitment to the coach.

    Science.gov (United States)

    Rezania, Davar; Gurney, Robert

    2014-01-01

    In this study we utilized the concept of commitment to explain the impact of coaching practices on student-athlete's behaviour. We examined the impact of commitment to the coach on the coaching outcome of in-role behaviour, and the influence of coaching practices, of information sharing, training, and encouraging teamwork, on the formation of relationships. We adopted measures from the organizational behaviour literature and surveyed student-athletes at two universities in Canada. The sample included data from 165 student-athletes from two universities. Results from structural equation modeling indicate support for the effect of coaching practices on commitment to the coach. Results also support the effect of commitment to the coach on the student-athletes' role behaviour and performance. By showing that coaching practices impact commitment to the coach, and that commitment to the coach impacts student-athlete role behaviour and performance, the findings have important implications for a better understanding of the determinants of coaches' and athletes' performance. The managerial significance of this research rests in the insight provided into how coaching practices influence athlete's behaviour through commitment to the coach. This study contributes to the literature on coach-athlete relationship within universities and colleges by applying the concept of commitment to the coach. This helps diversity research approaches to understanding coach-athlete relationships and extends prior research on commitment by looking at the context of the relationship between the student-athlete and their coach.

  1. The Copenhagen Soccer Test

    DEFF Research Database (Denmark)

    Bendiksen, Mads; Bischoff, Rasmus; Randers, Morten B

    2012-01-01

    INTRODUCTION: The aims of the study were 1) to evaluate whether a multifaceted simulated soccer game protocol, entitled the Copenhagen Soccer Test (CST), elicited a similar physiological loading as a competitive game (CG) and 2) to determine muscle metabolites, blood variables, and sprint...... performance in various phases of CST. METHODS: Twelve Danish Second- and Third-Division soccer players participated in the study. On separate days, HR measurements, frequent blood sampling, and physical/technical tests were performed during 60- and 90-min versions of the CST during which repeated musculus...... CST (5.2 ± 0.6 to 4.9 ± 0.7 m·s). CONCLUSIONS: The physiological response to the CST was reproducible and comparable to that of high-level CG. The CST allowed for rapid muscle sampling and revealed high creatine phosphate degradation throughout the test and a lowered glycogen utilization toward...

  2. COACH – EXPLORER - MANAGER

    Directory of Open Access Journals (Sweden)

    Đorđe Nićin

    2006-06-01

    Full Text Available Nowdays technologies are characterised by the expert specialists. In training technologies there are also coaches-experts for some sports. Aport from governing training technology, thus he performs manager’s work (planning, programing, accomplishing, controlling, correcting the coach also performs the work of an explorer, because the work of the coach is creative, creating, exploring and it is necessary to include innovation into training process, and innovations are nothing but rehearse of someting new, what is but scientific approach to the training. More the coach succeeds in controlling more factors which influence the sport achievement, he will be more successful. To be able to do all that, the coach must observe, follow, control and correct sportist’s reactions on exercises and loads all the time. The coach demonstrates his activity even through marketing, educational psychological, administrative- technical, nutritional and entire useful social role, so his work is interdisciplinary very complex, important, public, and thus it is a subject to critics. In order to be successful, a modern coach must be an exellent expert-specialist, but also an explorer and manager, and before all a creator of training technology

  3. Prognostic factors for specific lower extremity and spinal musculoskeletal injuries identified through medical screening and training load monitoring in professional football (soccer): a systematic review

    Science.gov (United States)

    Sergeant, Jamie C; Parkes, Matthew J; Callaghan, Michael J

    2017-01-01

    Background Medical screening and load monitoring procedures are commonly used in professional football to assess factors perceived to be associated with injury. Objectives To identify prognostic factors (PFs) and models for lower extremity and spinal musculoskeletal injuries in professional/elite football players from medical screening and training load monitoring processes. Methods The MEDLINE, AMED, EMBASE, CINAHL Plus, SPORTDiscus and PubMed electronic bibliographic databases were searched (from inception to January 2017). Prospective and retrospective cohort studies of lower extremity and spinal musculoskeletal injury incidence in professional/elite football players aged between 16 and 40 years were included. The Quality in Prognostic Studies appraisal tool and the modified Grading of Recommendations Assessment, Development and Evaluation synthesis approach was used to assess the quality of the evidence. Results Fourteen studies were included. 16 specific lower extremity injury outcomes were identified. No spinal injury outcomes were identified. Meta-analysis was not possible due to heterogeneity and study quality. All evidence related to PFs and specific lower extremity injury outcomes was of very low to low quality. On the few occasions where multiple studies could be used to compare PFs and outcomes, only two factors demonstrated consensus. A history of previous hamstring injuries (HSI) and increasing age may be prognostic for future HSI in male players. Conclusions The assumed ability of medical screening tests to predict specific musculoskeletal injuries is not supported by the current evidence. Screening procedures should currently be considered as benchmarks of function or performance only. The prognostic value of load monitoring modalities is unknown. PMID:29177074

  4. Nutritional Knowledge of UK Coaches

    OpenAIRE

    Cockburn, Emma; Fortune, Alistair; Briggs, Marc; Rumbold, Penny

    2014-01-01

    Athletes obtain nutritional information from their coaches, yet their competency in this area is lacking. Currently, no research exists in the UK which has a different coach education system to many other countries. Therefore, the aim of this study was to evaluate the sports nutrition knowledge of UK coaching certificate (UKCC) level 2 and 3, hockey and netball qualified coaches. All coaches (n = 163) completed a sports nutrition questionnaire to identify: (a) if they provided nutritional adv...

  5. School Principals, Leadership Coaches, and Student Achievement: Enhancing Self-Efficacy through the Coaching Relationship

    Science.gov (United States)

    Kelsen, Virginia E.

    2011-01-01

    School principals face an increasing number of professional demands, especially the challenge of improving student achievement. As such, the purpose of this dissertation is to study the effect of leadership coaching on a school principal's responsibilities related to carrying out these demands. Specifically, the researcher examined a subset of…

  6. Coaching via Electronic Performance Feedback to Support Home Visitors' Use of Caregiver Coaching Strategies

    Science.gov (United States)

    Krick Oborn, Kellie M.; Johnson, LeAnne D.

    2015-01-01

    Recommended practices for Part C early childhood special education home visitors encourage use of caregiver coaching strategies to enhance learning opportunities within the natural routines of infants and toddlers. The purpose of this study was to evaluate the effects of a multicomponent professional development intervention on home visitors' use…

  7. ATTITUDE TOWARDS CONFLICT SITUATIONS IN A TEAM AMONG HANDBALL COACHES

    Directory of Open Access Journals (Sweden)

    Marta Bon

    2013-07-01

    Full Text Available The aim of the study was to ascertain the attitude of handball coaches towards conflict situations with regard to selected socio-demographic characteristics. The sample consisted of 58 Slovenian handball coaches working in youth teams. Many differences were discovered between groups of participants. Female coaches held a higher degree of education compared to their male colleagues, and more of them were single (all younger than 31 years. More than half of all participants are involved in an emotional relationship and have children of their own. Generally speaking, coaches have a relatively neutral attitude towards conflicts; they admit their presence, but do not always act as to prevent them from happening. They do not immediately exclude a conflictive player from the team, but try to influence her/him. A conflict with the players or the team management does not divert them from their activity. Female coaches are “more tolerant” of conflicts in their team and seldom intervene between players. Older coaches tend to choose extreme statements. They admit the presence of conflicts, but do not seek reasons for them, often leaving the players to settle the conflict by themselves. Coaches involved in an emotional relationship are slightly more “tolerant” of conflicts. Less experienced coaches perceive conflicts as “less useful” compared to more experienced coaches, while professional coaches agree to a greater extent that conflicts must always be solved. Higher educated coaches tend to notice more conflicts, which probably comes as a consequence of their greater self-criticality. They more frequently see positive sides of conflicts and try to discover the causes for conflict arise.

  8. Relative Age Effect in UEFA Championship Soccer Players

    Directory of Open Access Journals (Sweden)

    González-Víllora Sixto

    2015-09-01

    Full Text Available Relative Age Effect (RAE is the breakdown by both age grouping and dates of birth of athletes. In the past 20 years the existence of this effect has been shown with higher or smaller impact in multiple sports, including soccer. The purpose of this study was to identify the existence of RAE in European soccer players. The sample included 841 elite soccer players who were participants in the UEFA European Soccer Championship in different categories. The professional category (n = 368, U-19 (n = 144 and U-17 (n = 145 were in 2012, and U-21 was in 2011 (n = 184. The Kolmogorov-Smirnov test and the Levene test recommended the use of nonparametric statistics. The results obtained by the square test (the Kruskal-Wallis test and Cohen’s effect sizes revealed the existence of RAE (χ2 = 17.829, p < 0.001; d = 0.30, with the size of their different effects depending on their category or qualifying round achieved by the national team and the existence of significance in the observed differences by category. Therefore, we could continue examining RAE which is present in elite soccer, and could be considered a factor that influences performance of the national teams tested. RAE was not evident in the professional teams analysed, however it was present in the three lower categories analysed (youth categories, with its influence being greater on younger age categories (U-17.

  9. The influence of genetic polymorphisms on performance and cardiac and hemodynamic parameters among Brazilian soccer players.

    Science.gov (United States)

    Dionísio, Thiago José; Thiengo, Carlos Rogério; Brozoski, Daniel Thomas; Dionísio, Evandro José; Talamoni, Guilherme Augusto; Silva, Roberto Braga; Garlet, Gustavo Pompermaier; Santos, Carlos Ferreira; Amaral, Sandra Lia

    2017-06-01

    This study investigated whether ACTN3 R577X, AMPD1 C34T, I/D ACE, and M235T AGT polymorphisms can affect performance tests such as jumping, sprinting, and endurance in 220 young male athletes from professional minor league soccer team from São Paulo Futebol Clube, Brazil. I/D ACE and M235T AGT polymorphisms were also analyzed according to cardiac and hemodynamic parameters. Athletes were grouped or not by age. DNA from saliva and Taqman assays were used for genotyping 220 athletes and the results were associated with performance tests. Ventricle mass, ventricle end-diastolic diameter, end-diastolic volume, and ejection fraction were assessed by echocardiogram. Arterial pressure, heart rate, and oximetry were assessed by a cardioscope. The main results of this study were that athletes who carried RR/RX (ACTN3) and DD (ACE) genotypes presented better performance during jump and sprint tests. On the other hand, athletes with ID/II genotype presented better results during endurance test, while AGT genotypes did not seem to favor the athletes during the evaluated physical tests. CC genotype (AMPD1) only favored the athletes during 10-m sprint test. Although there are environmental interactions influencing performance, the present results suggest that RR/RX ACTN3 and ACE DD genotypes may benefit athletes in activities that require strength and speed, while II ACE genotype may benefit athletes in endurance activities. This information could help coaches to plan the training session to improve the athletes' performance.

  10. Use of the RSA/RCOD Index to Identify Training Priority in Soccer Players.

    Science.gov (United States)

    Wong, Del P; Hjelde, Geir H; Cheng, Ching-Feng; Ngo, Jake K

    2015-10-01

    The use of RSA/RCOD index indicates the repeated change-of-direction (RCOD) performance relative to the repeated-sprint ability (RSA) and provides a standardized approach to prioritize training needs for RSA and RCOD. To compare the RSA/RCOD index among different age groups, RSA and RCOD were measured from 20 under-16 players (U16), 20 under-19 players (U19), and 17 first-team professional players (PRO) from a football (soccer) club that has regular participation in the UEFA Champions League. Each player performed the RSA and RCOD tests, during which the fastest time (FT), average time (AT), total time (TT), and percentage decrement score (%Dec) were recorded. No significant differences were found in RSA/RCOD index-FT, AT, TT, and %Dec among the 3 groups (p > 0.05) and between U19 and PRO in all RSA and RCOD measures (p > 0.05). Most values of RSA/RCOD index were 0.51 among the U16, U19, and PRO groups. Moreover, we concluded that the RSA/RCOD index might not be further changed after 16 years of age unless specific training programs for RSA and RCOD are prescribed. Therefore, this study provides an empirical case, and coaches can establish the RSA/RCOD index value relevant to their training system and monitor players' training needs of RSA and RCOD in a longer term.

  11. The ambidextrous potential in soccer, and the trainability of the non-preferred foot of young elite soccer players

    DEFF Research Database (Denmark)

    Koertz, Rune; Andersen, T. Bull

    2014-01-01

    AIM: The purpose of the present study was to evaluate if players and coaches should focus more on the non-preferred foot. The hypothesis of this study is that a small amount of training focusing on the non-preferred foot will improve the performance of the non-preferred foot for young elite players......-preferred foot towards a goal corner in a soccer goal. Velocity and accuracy were measured. The training intervention for the training group consisted of 7-13 training sessions. RESULTS: The result showed only few statistic significant differences (P

  12. Body image and body composition: comparisons of young male elite soccer players and controls.

    Science.gov (United States)

    Arroyo, Marta; Gonzalez-de-Suso, Jose Manuel; Sanchez, Celia; Ansotegui, Laura; Rocandio, Ana M

    2008-12-01

    The purpose of this study was to evaluate body composition and body image (perception and satisfaction) in a group of young elite soccer players and to compare the data with those of a control group (age and BMI matched). Participants were 56 volunteer males whose mean age and BMI were 19.6 (SD 1.3) years and 23.3 (SD 1.1) kg/m2, respectively. Results showed that soccer players have a higher lean mass and lower fat mass than controls. Moreover, body perception (difference between current and actual image) was more accurate in controls than in soccer players, and the results suggest a tendency for soccer players to aspire to have more muscle mass and body fat. Soccer players perceived an ideal image with significantly higher body-fat percentage than their current and actual images. There were no body-dissatisfaction differences between groups, however. Although the results are necessarily limited by the small sample size, the findings should be of interest to coaches of young elite soccer teams.

  13. Coaching effectiveness: the coach-athlete relationship at its heart.

    Science.gov (United States)

    Jowett, Sophia

    2017-08-01

    Coaching has been often viewed as a context within which coaches operate to largely bring about changes in athlete's performance and wellbeing. One key factor to successful outcomes in coaching is the quality of the relationship between coaches and athletes. In this article, I propose that the coach-athlete relationship is at the heart of coaching. Moreover, the aim is to describe and explain how the quality of the relationship coaches and athletes develop and maintain over the course of their sporting partnership alongside coaches and athletes' knowledge and outcomes, form a system that is capable of defining coaching effectiveness and success. Crown Copyright © 2017. Published by Elsevier Ltd. All rights reserved.

  14. Coaches' implicit associations between size and giftedness: implications for the relative age effect.

    Science.gov (United States)

    Furley, Philip; Memmert, Daniel

    2016-01-01

    The relative age effect (RAE) is a well-established phenomenon in education and sports. Coaches have been assumed to be important social agents of RAE via biased selection decisions in favour of children with maturation advantages. In the present research, we used the Implicit Association Test to investigate automatic associations between body size and a player's domain-specific giftedness amongst youth baseball (N = 18) and youth soccer coaches (N = 34). We found medium to strong automatic associations between body size and player giftedness (baseball: MD = 0.62; soccer: MD = 0.51). Specifically, taller players were associated with positive performance-related attributes, whereas smaller players were associated with negative attributes. The results are in line with theories of grounded cognition by showing that the abstract concept of "sport giftedness" is partly grounded in the perception of physical height amongst youth sports coaches. We argue that this grounded cognition has the potential to influence coaches' selection decisions and in turn account for RAE as coaches are biased towards physically more matured players, even when no apparent performance advantage is evident.

  15. Behavior Modification in Coaching.

    Science.gov (United States)

    Lynch, Annette Rutt; Stillman, Stephen M.

    1979-01-01

    An example of behavior modification used in athletic coaching is presented. The case study involves a member of a women's basketball team and details the use of behavior modification for both weight reduction and skill improvement. (JMF)

  16. Effective Professional Development of Teachers: A Guide to Actualizing Inclusive Schooling

    Science.gov (United States)

    Nishimura, Trisha

    2014-01-01

    This article examines how inclusive education activities can be facilitated through coaching as a means of professional development. A review of literature on effective professional development practices is discussed, and a recent study focused on individualized peer coaching is examined.

  17. Cartilage Repair in Football (Soccer) Athletes

    Science.gov (United States)

    Bekkers, J.E.J.; de Windt, Th.S.; Brittberg, M.

    2012-01-01

    The prevalence of focal articular cartilage lesions among athletes is higher than in the general population. Treatment goals differ considerably between the professional and recreational athlete. High financial stakes and the short duration of a professional career influence the treatment selection for the professional athlete, while such parameters weigh differently in recreational sports. This article describes our investigation of the relation between sports and a high prevalence of focal cartilage lesions. In addition, we provide a critical review of the best available evidence for cartilage surgery and treatment selection, evaluate specific patient profiles for professional and recreational athletes, and propose a treatment algorithm for the treatment of focal cartilage lesions in football (soccer) players. PMID:26069606

  18. Soccer Attenuates the Asymmetry of Rectus Abdominis Muscle Observed in Non-Athletes

    Science.gov (United States)

    Idoate, Fernando; Calbet, Jose A. L.; Izquierdo, Mikel; Sanchis-Moysi, Joaquin

    2011-01-01

    Purpose To determine the volume and degree of asymmetry of the rectus abdominis muscle (RA) in professional soccer players. Methods The volume of the RA was determined using magnetic resonance imaging (MRI) in 15 professional male soccer players and 6 non-active male control subjects. Results Soccer players had 26% greater RA volume than controls (Psoccer players (P = 0.42) and in controls (P = 0.75) (Dominant/non-dominant = 0.99, in both groups). Segmental analysis showed a progressive increase in the degree of side-to-side asymmetry from the first lumbar disc to the pubic symphysis in soccer players (r = 0.80, Psoccer players, although this trend was not statistically significant (P = 0.14). Conclusions Professional soccer is associated with marked hypertrophy of the rectus abdominis muscle, which achieves a volume that is 26% greater than in non-active controls. Soccer induces the hypertrophy of the non-dominant side in proximal regions and the dominant side in regions closer to pubic symphysis, which attenuates the pattern of asymmetry of rectus abdominis observed in non-active population. It remains to be determined whether the hypertrophy of rectus abdominis in soccer players modifies the risk of injury. PMID:21541351

  19. On learning soccer strategies

    NARCIS (Netherlands)

    Salustowicz, R.; Wiering, M.A.; Schmidhuber, J.

    1997-01-01

    We use simulated soccer to study multiagent learning. Each team's players (agents) share action set and policy but may behave differently due to position-dependent inputs. All agents making up a team are rewarded or punished collectively in case of goals. We conduct simulations with varying

  20. Evolving Soccer Strategies

    NARCIS (Netherlands)

    Salustowicz, R.; Wiering, M.A.; Schmidhuber, J.

    1997-01-01

    We study multiagent learning in a simulated soccer scenario. Players from the same team share a common policy for mapping inputs to actions. They get rewarded or punished collectively in case of goals. For varying team sizes we compare the following learning algorithms: TD-Q learning with

  1. "Soccer": The Beautiful Game

    Science.gov (United States)

    Spires, Todd

    2008-01-01

    Soccer, or football as it is called in the rest of the world, is the most popular and fastest-growing global sport, with an estimated 240 million people regularly playing what Brazilian star Pele called "the beautiful game." Millions, worldwide, watch it on television. In 2006, the average viewership for each match of the month-long World Cup was…

  2. Collisions in soccer kicking

    DEFF Research Database (Denmark)

    Andersen, Thomas Bull; Dörge, Henrik C.; Thomsen, Franz Ib

    1999-01-01

    An equation to describe the velocity of the soccer ball after the collision with a foot was derived. On the basis of experimental results it was possible to exclude certain factors and only describe the angular momentum of the system, consisting of the shank, the foot and the ball, leading...

  3. Tredje generations coaching

    DEFF Research Database (Denmark)

    Stelter, Reinhard

    , vi dagligt skal forholde os til. Forfatterens forestilling om coaching tager udgangspunkt i en analyse af vort samfund – et samfund, der er kendetegnet af diversificering, identitetsudfordringer, ophævelse af vidensmonopolet, livslang uddannelse, nødvendighed til selvrefleksion mm. Bogen skal har...... dermed et særligt profil. Den skal markere (og skubbe til) en ny trend i coaching, som afgrænser sig fra pop coaching og GROW model o.l.. Coaching kan aldrig være ”the quick fix”. Vores tid tillader det bage ikke. Disse samfundsmæssige forandringer er grundlaget for coachingens eksistens og udbredelse......, men de skal også være fundament for den måde vi bedriver coaching. Derfor plæderer bogens forfatter for en 3. generations coaching i en form, hvor coachen og fokuspersonen mindre er fokuseret på løsninger, men i højere grad optaget af at skabe et rum til (selv)refleksion gennem en samskabende praksis....

  4. Tredje generations coaching

    DEFF Research Database (Denmark)

    Stelter, Reinhard

    2012-01-01

    ”Tredje generations coaching” udfolder et nyt univers for coaching og coachingpsykologi gennem en bearbejdelse af aktuel samfundsforskning, nye læringsteorier og diskurser om det personlige lederskab. ”Tredje generations coaching” er funderet på en samfundsmæssig forståelse af coaching. Coaching er...... blevet så betydningsfuld, fordi samfundet opleves som uoverskueligt og hyperkomplekst. Viden skal nu udformes og anvendes i specifikke kontekster og situationer, og både i privatliv og i det offentlige rum skal vi lære at forhandle os til rette. Coaching kan hjælpe os til at skabe ny viden og mestre...... sociale forhandlinger. Coaching er dermed en slags fødselshjælp til nye refleksioner og perspektiver, en hjælp til selvhjælp og en støtte til ens egen selvdannelsesproces. ”Tredje generations coaching” fremhæver coach og coachee i deres narrativ-samskabende partnerskab. Til forskel fra første generations...

  5. Stress, Coping, and Emotions on the World Stage : The Experience of Participating in a Major Soccer Tournament Penalty Shootout

    NARCIS (Netherlands)

    Jordet, Geir; Elferink-Gemser, Marije T.

    2012-01-01

    This study was designed to capture the first-hand experiences of stressors, coping, and emotions that elite professional soccer players have during a major soccer penalty shootout. Eight players who each took part in an important European Championships penalty shootout were interviewed. The results

  6. CONCUSSION OCCURRENCE AND KNOWLEDGE IN ITALIAN FOOTBALL (SOCCER

    Directory of Open Access Journals (Sweden)

    Steven P. Broglio

    2010-09-01

    Full Text Available The purpose of the study was to investigate concussion history, knowledge, injury identification, and management strategies among athletes, coaches, and medical staff in Italian club level football (soccer clubs. Surveys (N=727 were distributed among Italian football clubs. Athletes' surveys were designed to evaluate athlete knowledge of concussive signs and symptoms and injury reporting. Coaches' surveys explored the understanding of concussive signs and symptoms and management practices. Medical staff surveys explored the standard of care regarding concussions. A total of 342 surveys were returned, for a 47% response rate. Descriptive analyses indicated 10% of athletes sustaining a concussion in the past year and 62% of these injuries were not reported, primarily due to the athletes not thinking the injury was serious enough. Coaches consistently identified non-concussion related symptoms (98.7%, but were unable to identify symptoms associated with concussion (38.9%. Most understood that loss of consciousness is not the sole indicator of injury (82.6%. Medical staff reported a heavy reliance on the clinical exam (92% and athlete symptom reports (92% to make the concussion diagnosis and return to play decision, with little use of neurocognitive (16.7% or balance (0.0% testing. Italian football athletes appear to report concussions at a rate similar to American football players, with a slightly higher rate of unreported injuries. Most of these athletes were aware they were concussed, but did not feel the injury was serious enough to report. Although coaches served as the primary person to whom concussions were reported, the majority of coaches were unable to accurately identify concussion related symptoms. With little use for neurocognitive and postural control assessments, the medical personnel may be missing injuries or returning athletes to play too soon. Collectively, these findings suggest that athletes, coaches, and medical personnel would

  7. Literacy Coaching for Transformative Pedagogies: Navigating Intellectual Unrest

    Science.gov (United States)

    Dozier, Cheryl L.

    2014-01-01

    Dozier illuminates the notion of intellectual unrest and the complexities of mandated professional development for teachers. She challenges readers to reconsider how mandated professional development is crafted and invites literacy coaches to become collaborative critical designers of practices with teachers to help them navigate competing…

  8. Antecedents of perceived coach interpersonal behaviors:\\ud the coaching environment and coach psychological well- and ill-being

    OpenAIRE

    Stebbings, Juliette; Taylor, Ian M.; Spray, Christopher M.; Ntoumanis, Nikos

    2012-01-01

    Embedded in the self-determination theory (Deci & Ryan, 2000) framework, we obtained self-report data from 418 paid and voluntary coaches from a variety of sports and competitive levels with the aim of exploring potential antecedents of coaches’ perceived autonomy supportive and controlling behaviors. Controlling for socially desirable responses, structural equation modeling revealed that greater job security and opportunities for professional development, and lower work–life conflict were as...

  9. Antecedents of Perceived Coach Interpersonal Behaviors: The Coaching Environment and Coach Psychological Well- and Ill-Being

    OpenAIRE

    Ntoumanis, Nikos; Stebbings, Juliette; Taylor, Ian M.; Spray, Christopher M.

    2012-01-01

    Embedded in the self-determination theory (Deci & Ryan, 2000) framework, we obtained self-report data from 418 paid and voluntary coaches from a variety of sports and competitive levels with the aim of exploring potential antecedents of coaches’ perceived autonomy supportive and controlling behaviors. Controlling for socially desirable responses, structural equation modeling revealed that greater job security and opportunities for professional development, and lower work–life conflict were as...

  10. Sprint mechanics return to competition follow-up after hamstring injury on a professional soccer player: A case study with an inertial sensor unit based methodological approach.

    Science.gov (United States)

    Setuain, Igor; Lecumberri, Pablo; Izquierdo, Mikel

    2017-10-03

    The present research aimed to describe an inertial unit (IU)-based sprint mechanics evaluation model for assessing players' readiness to return to competition after suffering a grade I hamstring injury. A professional male football player (age 19years; height 177cm; weight 70kg, midfielder, Spanish, 3° Division) with a grade 1 biceps femoris injury was evaluated at pre-season, at return to play after injury and at the end of the competitive season. Sprint mechanics were analyzed via the use of an inertial orientation tracker (Xsens Technologies B.V. Enschede, Netherlands) attached over the L3-L4 region of the subject's lumbar spine. Sprint mechanics such as horizontal components of ground reaction force were assessed in both legs during sprinting actions. Findings and interpretation: Both the coefficient of the horizontal force application (SFV) and the ratio of forces (DRF) applied at increasing velocity were decreased in the injured limb compared with the contralateral healthy limb at the return to play evaluation (73% and 76% reductions, respectively) and returned to symmetrical levels at the end-season evaluation. Copyright © 2017 Elsevier Ltd. All rights reserved.

  11. Profile of job coaches in supported employment

    Directory of Open Access Journals (Sweden)

    Esther MERCADO GARCÍA

    2017-02-01

    Full Text Available This study analyzes the figure of the job coach in various Supported Employment services in Spain. A quality-oriented study carried out, based on the case study. Twenty-three semi-structured interviews held with professionals, along with thirtysix participant observations at different stages of Supported Employment. The results show disparity in the profiles associated with various areas of knowledge, as well as a diversity of functions related to the roles performed by the job coach depending on the number of staff taken on. The most significant competencies combined with personal skills and communicative abilities. It recommended that employment programs improve vocational retraining programs to make up for training deficiencies and provide professional skills for intervention in each service.

  12. Psychophysiological responses in the pre-competition period in elite soccer players

    OpenAIRE

    Déborah Alix-Sy; Christine Le Scanff; Edith Filaire

    2008-01-01

    This study investigated pre-competition physiological and psychological states of eighteen elite soccer players. Salivary cortisol was assessed during a non- training day and before three league games. Affective states (unpleasant and pleasant, somatic and transactional emotions) were evaluated using the Tension and Effort-Stress Inventory before the three league games. Participants formed 2 groups, 11 starters and 7 non-starters, depending on the starting list established by the coach. All p...

  13. Designing information visualizations for elite soccer children's different levels of comprehension

    DEFF Research Database (Denmark)

    Herdal, Thor; Pedersen, Jeppe Gerner; Knudsen, Søren

    2016-01-01

    We describe a study that sought to understand elite soccer children's use of visualizations to learn about, and improve their own sports performance. We specifically investigate how visualizations support the players' data comprehension. In this process, we design and evaluate visualizations base...... on real data. Finally, we discuss how the players' level of comprehension might depend on factors such as their general literacy and visualization literacy, and the role of visualization in coaching children....

  14. Biographical learning in top-level coaching - personal styles and the power of practical sense

    DEFF Research Database (Denmark)

    Christensen, Mette Krogh

    : Biographical learning in top-level coaching - personal styles and the power of practical sense. There is a growing body of studies in sports coaching cultures, comprising research focusing on the individual learning processes and life histories of top-level coaches. Even if top-level sport has become...... increasingly professionalized, the role of the top-level coach and the developmental pathways of the coaches differ widely in both areas of experience and amount of experience. In this paper I draw on theories on biographical learning, idiosyncratic learning and development of coaching expertise. This paper...... explores the relation between these kinds of learning processes and the coaches’ development of practical sense of talent. I base the paper on a sociological analysis of in-depth interviews with eight Danish top-level football coaches about their pathways to expertise. Results illustrate two interwoven...

  15. Small-sided and conditioned games in soccer training the science and practical applications

    CERN Document Server

    Clemente, Filipe Manuel

    2016-01-01

    This book reviews the general acute effects and adaptations of small-sided and conditioned games (SSCGs) in terms of physiological responses, technical performance and methodology/periodization in the game of soccer. It also reviews the many studies conducted in the past decade to investigate the influence of SSCGs on physiological responses and technical performance in soccer training. SSCGs, which are smaller and adapted versions of formal team sports, are very popular training drills for players at all ability levels and competitive levels and offer an alternative to traditional fitness training. Exploring their role in depth, this book offers a valuable resource for academics, researchers and coaches with an interest in developing improved training techniques for soccer.

  16. Telephone-Based Coaching.

    Science.gov (United States)

    Boccio, Mindy; Sanna, Rashel S; Adams, Sara R; Goler, Nancy C; Brown, Susan D; Neugebauer, Romain S; Ferrara, Assiamira; Wiley, Deanne M; Bellamy, David J; Schmittdiel, Julie A

    2017-03-01

    Many Americans continue to smoke, increasing their risk of disease and premature death. Both telephone-based counseling and in-person tobacco cessation classes may improve access for smokers seeking convenient support to quit. Little research has assessed whether such programs are effective in real-world clinical populations. Retrospective cohort study comparing wellness coaching participants with two groups of controls. Kaiser Permanente Northern California, a large integrated health care delivery system. Two hundred forty-one patients who participated in telephonic tobacco cessation coaching from January 1, 2011, to March 31, 2012, and two control groups: propensity-score-matched controls, and controls who participated in a tobacco cessation class during the same period. Wellness coaching participants received an average of two motivational interviewing-based coaching sessions that engaged the patient, evoked their reason to consider quitting, and helped them establish a quit plan. Self-reported quitting of tobacco and fills of tobacco cessation medications within 12 months of follow-up. Logistic regressions adjusting for age, gender, race/ethnicity, and primary language. After adjusting for confounders, tobacco quit rates were higher among coaching participants vs. matched controls (31% vs. 23%, p Coaching participants and class attendees filled tobacco-cessation prescriptions at a higher rate (47% for both) than matched controls (6%, p coaching was as effective as in-person classes and was associated with higher rates of quitting compared to no treatment. The telephonic modality may increase convenience and scalability for health care systems looking to reduce tobacco use and improve health.

  17. Soccer: cultural manifestation and ideology

    Directory of Open Access Journals (Sweden)

    Wilson Rinaldi

    2008-06-01

    Full Text Available In Brazil soccer has assumed a role beyond a simple sports modality by becoming a social phenomenon. Historically soccer is perceptible from two different perspectives: as a means of transmitting ideology and as an important element of Brazilian culture. The aim of this bibliographical study is to discuss soccer as a cultural manifestation and, at some historical moments, as a mean of transmitting ideology. This discussion made it possible to notice that soccer provides subsidies for a better understanding of organizational and relational forms that permeate Brazilian society.

  18. Psychological Characteristics in Talented Soccer Players – Recommendations on How to Improve Coaches’ Assessment

    Directory of Open Access Journals (Sweden)

    Lisa Musculus

    2018-02-01

    Full Text Available Psychological characteristics, including personality traits and psychological skills, have been shown to be relevant predictors of soccer performance. In research, general and sport specific standardized self-report questionnaires have been applied in psychological diagnostics of sports talent. However, with regard to the assessment of psychological characteristics of talented soccer players, a gap between research and practice is apparent. While soccer clubs often ask their coaches to assess their players on self-designed, unevaluated scouting sheets, research widely neglects expert coaches’ and clubs’ perspectives on relevant performance characteristics. As we believe that expert coaches’ assessments could be a valid predictor of a player’s current performance and future success, we provide recommendations on how to improve coaches’ assessment of psychological characteristics. As the quality of the assessment of psychological characteristics is crucial, we provide recommendations on how to ensure the central diagnostic standards: objectivity, reliability, and validity in talent assessment. Further, we argue that assessing psychological characteristics should combine self ratings of players and external ratings of coaches in talent development. Sport psychologists should assist clubs and coaches in improving the diagnostics of psychological characteristics as well as in embedding psychological diagnostics and interventions in the talent development process.

  19. Psychological Characteristics in Talented Soccer Players – Recommendations on How to Improve Coaches’ Assessment

    Science.gov (United States)

    Musculus, Lisa; Lobinger, Babett H.

    2018-01-01

    Psychological characteristics, including personality traits and psychological skills, have been shown to be relevant predictors of soccer performance. In research, general and sport specific standardized self-report questionnaires have been applied in psychological diagnostics of sports talent. However, with regard to the assessment of psychological characteristics of talented soccer players, a gap between research and practice is apparent. While soccer clubs often ask their coaches to assess their players on self-designed, unevaluated scouting sheets, research widely neglects expert coaches’ and clubs’ perspectives on relevant performance characteristics. As we believe that expert coaches’ assessments could be a valid predictor of a player’s current performance and future success, we provide recommendations on how to improve coaches’ assessment of psychological characteristics. As the quality of the assessment of psychological characteristics is crucial, we provide recommendations on how to ensure the central diagnostic standards: objectivity, reliability, and validity in talent assessment. Further, we argue that assessing psychological characteristics should combine self ratings of players and external ratings of coaches in talent development. Sport psychologists should assist clubs and coaches in improving the diagnostics of psychological characteristics as well as in embedding psychological diagnostics and interventions in the talent development process. PMID:29459839

  20. A review on the effects of soccer small-sided games.

    Science.gov (United States)

    Aguiar, Marco; Botelho, Goreti; Lago, Carlos; Maças, Victor; Sampaio, Jaime

    2012-06-01

    Over the last years there has been a substantial growth in research related to specific training methods in soccer with a strong emphasis on the effects of small-sided games. The increase of research in this topic is coincident with the increase of popularity obtained by specific soccer conditioning, which involves training players to deal with soccer match situations. Given the limited time available for fitness training in soccer, the effectiveness of small-sided games as a conditioning stimulus needs to be optimized to allow players to compete at the highest level. Available studies indicate that physiological responses (e.g. heart rate, blood lactate concentration and rating of perceived exertion), tactical and technical skill requirements can be modified during small-sided games by altering factors such as the number of players, the size of the pitch, the rules of the game, and coach encouragement. However, because of the lack of consistency in small-sided games design, player fitness, age, ability, level of coach encouragement, and playing rules in each of these studies, it is difficult to make accurate conclusions on the influence of each of these factors separately.

  1. A competence executive coaching model

    Directory of Open Access Journals (Sweden)

    Pieter Koortzen

    2010-03-01

    Full Text Available Orientation: Psychologists in industry are increasingly required to provide executive coaching services in their organisations or as part of their consulting services. An evaluation of coaching models as well as the development needs of individuals being trained as coaches, both locally and internationally, has led the authors to believe that there is a need for a competence executive coaching model.Research purpose: The purpose of this article is to address the training and development needs of these consulting psychologists by presenting a competence executive coaching model for the planning, implementation and evaluation of executive coaching interventions.Research design, approach and method: The study was conducted while one of the authors was involved in teaching doctoral students in consulting psychology and executive coaching, specifically in the USA. The approach involved a literature review of executive coaching models and a qualitative study using focus groups to develop and evaluate the competence executive coaching model.Main findings: The literature review provided scant evidence of competence executive coaching models and there seems to be a specific need for this in the training of coaches in South Africa. Hence the model that was developed is an attempt to provide trainers with a structured model for the training of coaches.Contribution/value-add: The uniqueness of this competence model is not only described in terms of the six distinct coaching intervention phases, but also the competencies required in each.

  2. Antecedents of perceived coach interpersonal behaviors: the coaching environment and coach psychological well- and ill-being.

    Science.gov (United States)

    Stebbings, Juliette; Taylor, Ian M; Spray, Christopher M; Ntoumanis, Nikos

    2012-08-01

    Embedded in the self-determination theory (Deci & Ryan, 2000) framework, we obtained self-report data from 418 paid and voluntary coaches from a variety of sports and competitive levels with the aim of exploring potential antecedents of coaches' perceived autonomy supportive and controlling behaviors. Controlling for socially desirable responses, structural equation modeling revealed that greater job security and opportunities for professional development, and lower work-life conflict were associated with psychological need satisfaction, which, in turn, was related to an adaptive process of psychological well-being and perceived autonomy support toward athletes. In contrast, higher work-life conflict and fewer opportunities for development were associated with a distinct maladaptive process of thwarted psychological needs, psychological ill-being, and perceived controlling interpersonal behavior. The results highlight how the coaching context may impact upon coaches' psychological health and their interpersonal behavior toward athletes. Moreover, evidence is provided for the independence of adaptive and maladaptive processes within the self-determination theory paradigm.

  3. Coaching the Coach: A Program for Development of Faculty Portfolio Coaches.

    Science.gov (United States)

    Kopechek, Jack; Bardales, Cheryl; Lash, A Todd; Walker, Curtis; Pfeil, Sheryl; Ledford, Cynthia H

    2017-01-01

    Faculty coaching is recognized as an essential element for effective use of portfolios in undergraduate medical education, yet best practices for training these coaches are uncertain. New portfolio coaches participated in a multifaceted training program that included orienting modules, a 7.5-hr training workshop featuring analysis of reflective writing, an Observed Structured Teaching Exercise (OSTE), and subsequent longitudinal coaches' meetings for timely task training. Four desired coaching skills were emphasized in the initial training: creating a safe environment, explicitly using performance data, asking questions that elicit reflection, and guiding the student to develop future goals and plans. We collected and analyzed several outcomes: (a) coaches' self-assessment at key intervals, (b) open-ended written responses to three coaching vignettes, (c) video recordings of the OSTE, and (d) subsequent student evaluation of the coach. In an attempt to capture learning from the workshop, both the responses to written vignettes and the video-recorded encounters were coded for presence or absence of the four desired skills. Our portfolio and coaching program was instituted as part of a major undergraduate medical education reform. A new cohort of 25 coaches is enrolled with each matriculating student class, and each coach is assigned to work individually with 8-10 students, forming a coaching relationship that continues over 4 years. Coaches are compensated at 5% full-time equivalent. On coach self-assessment, the majority of coaches reported significant improvement in their perceived ability to assess a student's level of reflection, enhance reflection, use performance data, and guide a student to develop goals and plans. After two semesters, coach perception of improved abilities persisted. Students rated coaches as excellent (82%), reporting that coaches created safe environments (99%), promoted insight (92%), and aided in goal setting (97%). Written responses to

  4. What Does "Playing Well" Mean to Elite Sports Coaches?: Implicit Thinking of Elite Spanish Soccer Coaches

    Science.gov (United States)

    González-Víllora, Sixto; Serra-Olivares, Jaime; González-Martí, Irene; Hernández-Martínez, Andrea

    2012-01-01

    People construct knowledge through a set of highly diverse experiences. Despite being personal, this knowledge is strongly influenced by the specific context where it occurs. Such experience-based knowledge is referred to as "implicit theories" because it does not fit in with a systematic and theoretical knowledge context like that of…

  5. Coaching Considerations: FAQs Useful in the Development of Literacy Coaching

    Science.gov (United States)

    Fisher, Douglas

    2012-01-01

    The National Advisory Board for the Literacy Coaching Clearinghouse have identified a number of considerations that it believed needed further discussion as schools, districts, and states embrace literacy coaching. It negotiated and discussed a number of issues surrounding coaching and agreed on 10 key ideas that should be part of the discussions…

  6. Soccer attenuates the asymmetry of rectus abdominis muscle observed in non-athletes.

    Directory of Open Access Journals (Sweden)

    Fernando Idoate

    Full Text Available PURPOSE: To determine the volume and degree of asymmetry of the rectus abdominis muscle (RA in professional soccer players. METHODS: The volume of the RA was determined using magnetic resonance imaging (MRI in 15 professional male soccer players and 6 non-active male control subjects. RESULTS: Soccer players had 26% greater RA volume than controls (P<0.05, due to hypertrophy of both the dominant (28% greater volume, P<0.05 and non-dominant (25% greater volume, P<0.01 sides, after adjusting for age, length of the RA muscle and body mass index (BMI as covariates. Total volume of the dominant side was similar to the contralateral in soccer players (P = 0.42 and in controls (P = 0.75 (Dominant/non-dominant = 0.99, in both groups. Segmental analysis showed a progressive increase in the degree of side-to-side asymmetry from the first lumbar disc to the pubic symphysis in soccer players (r = 0.80, P<0.05 and in controls (r = 0.75, P<0.05. The slope of the relationship was lower in soccer players, although this trend was not statistically significant (P = 0.14. CONCLUSIONS: Professional soccer is associated with marked hypertrophy of the rectus abdominis muscle, which achieves a volume that is 26% greater than in non-active controls. Soccer induces the hypertrophy of the non-dominant side in proximal regions and the dominant side in regions closer to pubic symphysis, which attenuates the pattern of asymmetry of rectus abdominis observed in non-active population. It remains to be determined whether the hypertrophy of rectus abdominis in soccer players modifies the risk of injury.

  7. The effect of coach education on reporting of concussions among high school athletes after passage of a concussion law.

    Science.gov (United States)

    Rivara, Frederick P; Schiff, Melissa A; Chrisman, Sara P; Chung, Shana K; Ellenbogen, Richard G; Herring, Stanley A

    2014-05-01

    Increasing attention has been paid to concussions and especially sports-related concussions in youth. To prevent an inappropriate return to play while symptomatic, nearly all states have now passed legislation on youth sports-related concussions. To determine (1) the incidence of sports-related concussions in high school athletes using a unique system to collect reports on concussions, (2) the proportion of athletes with concussions who play with concussive symptoms, and (3) the effect of the type and modality of coach education on the likelihood of athletes reporting symptoms to the coach or playing with concussive symptoms. Cohort study; Level of evidence, 2. This study was conducted with high school football and girls' soccer athletes playing in fall 2012 and their coaches and parents in 20 urban or rural high schools in Washington State. The main outcome was the incidence of concussions per 1000 athlete-exposures (AEs), the proportion of concussed athletes who played with concussive symptoms, and the association of coach concussion education with coach awareness of athletes with concussive symptoms. Among the 778 athletes, the rate of concussions was 3.6 per 1000 AEs and was identical for the 2 sports studied. The cumulative concussion incidence over the course of the season was similar in girls' soccer (11.1%) and football (10.4%). Sixty-nine percent of concussed athletes reported playing with symptoms, and 40% reported that their coach was not aware of their concussion. Most measures of coach concussion education were not associated with coach awareness of concussions in their athletes, although the modalities of a video and quiz were associated with a lower likelihood of coach awareness. More objective and accurate methods are needed to identify concussions. Changes in athlete attitudes on reporting concussive symptoms will likely not be accomplished through legislation alone.

  8. Physique and body composition in soccer players across adolescence.

    Science.gov (United States)

    Nikolaidis, Pantelis Theodoros; Vassilios Karydis, Nikos

    2011-06-01

    Although the contribution of physique and body composition in soccer performance was recognized, these parameters of physical fitness were not well-studied in adolescent players. Aim of this study was to investigate physique and body composition across adolescence. Male adolescents (N=297 aged 12.01-20.98 y), classified into nine one-year age-groups, child (control group, N=16 aged 7.34-11.97 y) and adult players (control group, N=29 aged 21.01-31.59 y), all members of competitive soccer clubs, performed a series of anthropometric measures (body mass, height, skinfolds, circumferences and girths), from which body mass index (BMI), percentage of body fat (BF%), fat mass (FM), fat free mass (FFM) and somatotype (Heath-Carter method) were calculated. Age had a positive association with FM (r=0.2, Pphysique. Thus, these findings could be employed by coaches and fitness trainers engaged in soccer training in the context of physical fitness assessment and talent identification.

  9. Coaching er varm luft!

    Directory of Open Access Journals (Sweden)

    Asbjørn Molly

    2014-07-01

    Full Text Available In this essay a new model is presented as an attempt to operationalize the otherwise slightly abstract concept of ”suitable disturbances” (coined by Humberto Maturana, which is a central concept in systemic coaching. The argument stated is that the process of ’reading’ and ’recognizing’ a coachee’s use of a word is a necessary skill for the coach to master, in order to introduce a language game in which it becomes possible to ‘disturb’ this use in a constructive manner. This argument is exemplified in a specific coaching conversation with a school leader, whose use of the word recognition is explored using questions based on keywords and the mirror technique, and thereby stimulating a change in the coachee’s perception of the word, which gives rise to new possibilities of action.

  10. Insolvency in French Soccer

    OpenAIRE

    Scelles, Nicolas; Szymanski, Stefan; Dermit-Richard, Nadine

    2016-01-01

    This paper examines insolvency at the highest levels of French soccer. Between 1970 and 2014 we observed 72 cases of insolvency arising from participation in the top two or three (since 1993) divisions. We find that demand (attendance) shocks can account for insolvency to a significant degree. We also find that insolvency can be explained by ownership structure, with the tradition Association form being more likely to lead to insolvency. We also examine the post-insolvency perf...

  11. Effects of a Carbohydrate-Electrolyte Drink on Specific Soccer Tests and Performance

    OpenAIRE

    Ostojic, Sergej M; Sanja Mazic

    2002-01-01

    The aim of this study was to examine the effects of a carbohydrate-electrolyte drink on specific soccer tests and performance. Twenty-two professional male soccer players volunteered to participate in the study. The players were allocated to two assigned trials ingesting carbohydrate-electrolyte drink (7% carbohydrates, sodium 24 mmol.l-1, chloride 12 mmol.l-1, potassium 3 mmol.l-1) or placebo during a 90 min on-field soccer match. The trials were matched for subjects’ age, weight, height and...

  12. Parents role in the development of soccer players / Papel dos pais no desenvolvimento de jovens futebolistas

    Directory of Open Access Journals (Sweden)

    Luiz Carlos Moraes

    2004-01-01

    Full Text Available This study investigated the role of parents in the development of soccer players. Twenty parents and 12 soccer players, between 15 and 18 years old participated in the study. Both quantitative and qualitative approaches were used by administrating questionnaires forms and interviews. It was observed that few changes occurred in the family routines and that parents were minimally involved in their sons' sport activities. This did not appear to be a constraint for their sons' development because of their passion for soccer, the total amount of practice, and a potential lucrative professional career. Researchers should carefully adopt important paradigms from first world countries to another country with contextual differences.

  13. Faculty Development through Cognitive Coaching

    Science.gov (United States)

    Bair, Mary Antony

    2017-01-01

    This paper describes a faculty development project in which 12 teacher educators used the Cognitive Coaching model to engage in critical reflections about their teaching. Each identified an aspect of their teaching they wanted to improve and a colleague to serve as coach. Participants engaged in Cognitive Coaching cycles, consisting of planning…

  14. Perceived coach-created and peer-created motivational climates and their associations with team cohesion and athlete satisfaction: evidence from a longitudinal study.

    Science.gov (United States)

    García-Calvo, Tomás; Leo, Francisco Miguel; Gonzalez-Ponce, Inmaculada; Sánchez-Miguel, Pedro Antonio; Mouratidis, Athanasios; Ntoumanis, Nikos

    2014-01-01

    In this longitudinal study, we examined the extent to which perceived coach- and peer-created motivational climates are associated with athlete-group cohesion and satisfaction with participation among Spanish soccer players competing in the Third National Division. Multilevel modelling analyses showed that perceived coach-created task climate was positively related to perceived cohesion and players' satisfaction with their participation within their team. Also, perceived peer-created task climate related positively to perceived cohesion. The results indicate the importance of considering peer-related aspects of the motivational climate in addition to considering the coach-related aspects of the motivational climate when examining motivational group dynamics in sport.

  15. Market forces in european soccer

    NARCIS (Netherlands)

    Haan, M.; Koning, Ruud H.; Witteloostuijn, A. van

    2003-01-01

    Recent decades have witnessed major changes in the market for European soccer. The most profound were the Bosman ruling, which lifted restrictions in the European labor market for soccer talent, and the introduction of the Champions' League, a high-profile international competition that generates

  16. Market forces in european soccer

    NARCIS (Netherlands)

    Haan, M.; Koning, Ruud H.; Witteloostuijn, A. van

    2002-01-01

    Recent decades have witnessed major changes in the market for European soccer. The most profound were the Bosman ruling, which lifted restrictions in the European labor market for soccer talent, and the introduction of the Champions' League, a high-profile international competition that generates

  17. Coaching Teachers for Emergent Literacy Instruction Using Performance-Based Feedback

    Science.gov (United States)

    McCollum, Jeanette A.; Hemmeter, Mary Louise; Hsieh, Wu-Ying

    2013-01-01

    Coaching has garnered support as a professional development approach that helps teachers use research-based instruction to teach emergent literacy skills to young children. However, approaches to coaching vary widely, as do the backgrounds and training of the teachers included in different studies. This study investigated the influence of…

  18. Applying an Evidence-Based Framework to the Early Childhood Coaching Literature

    Science.gov (United States)

    Artman-Meeker, Kathleen; Fettig, Angel; Barton, Erin E.; Penney, Ashley; Zeng, Songtian

    2015-01-01

    Professional development (PD) is a critical pathway for promoting the use of evidence-based intervention practices in early childhood (EC) settings. Coaching has been proposed as a type of PD that is especially promising for job-embedded learning. A lack of consensus exists regarding evidence-based EC coaching strategies and what types of support…

  19. Value of Coaching in Building Leadership Capacity of Principals in Urban Schools

    Science.gov (United States)

    Farver, Anita R.; Holt, Carleton R.

    2015-01-01

    The purpose of this qualitative case study was to understand how coaching support structures enabled and sustained leadership practices of urban principals. The study investigated how the intervention of coaching for academic leaders can serve as evidence-based professional development for building leadership capacity. The central focus was on…

  20. The Effects of Peer Coaching on the Evaluation Knowledge, Skills, and Concerns of Gifted Program Administrators

    Science.gov (United States)

    Cotabish, Alicia; Robinson, Ann

    2012-01-01

    To increase knowledge and skills in program evaluation, a peer-coaching intervention provided one-on-one professional development to gifted program administrators. This randomized field study examined the effects of peer coaching on evaluation knowledge and skills and on administrators' concerns about implementing more rigorous program…