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https://www.readbyqxmd.com/read/28821469/a-cluster-randomized-trial-of-a-middle-school-gender-violence-prevention-program-design-rationale-and-sample-characteristics
#1
Kaleab Z Abebe, Kelley A Jones, Samantha Ciaravino, Lisa Ripper, Taylor Paglisotti, Sarah Elizabeth Morrow, Melanie Grafals, Courtney Van Dusen, Elizabeth Miller
INTRODUCTION: High rates of adolescent relationship abuse (ARA) and sexual violence (SV) reported among adolescents point to the need for prevention among middle school-age youth. This is a cluster randomized controlled trial to test an athletic coach-delivered ARA/SV prevention program in 41 middle schools (38 clusters). Trained coaches talk to their male athletes about 1) what constitutes harmful vs. respectful relationship behaviors, 2) dispelling myths that glorify male sexual aggression and promoting more gender-equitable attitudes, and 3) positive bystander intervention when aggressive male behaviors toward females are witnessed...
August 15, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/28817655/assessing-experience-in-the-deliberate-practice-of-running-using-a-fuzzy-decision-support-system
#2
Maria Isabel Roveri, Edison de Jesus Manoel, Andrea Naomi Onodera, Neli R S Ortega, Vitor Daniel Tessutti, Emerson Vilela, Nelson Evêncio, Isabel C N Sacco
The judgement of skill experience and its levels is ambiguous though it is crucial for decision-making in sport sciences studies. We developed a fuzzy decision support system to classify experience of non-elite distance runners. Two Mamdani subsystems were developed based on expert running coaches' knowledge. In the first subsystem, the linguistic variables of training frequency and volume were combined and the output defined the quality of running practice. The second subsystem yielded the level of running experience from the combination of the first subsystem output with the number of competitions and practice time...
2017: PloS One
https://www.readbyqxmd.com/read/28813356/athlete-leadership-a-review-of-the-theoretical-measurement-and-empirical-literature
#3
REVIEW
Todd M Loughead
Athlete leadership is defined as an athlete who occupies a formal or informal leadership role within a team and influences team members to achieve a common objective. The area of athlete leadership has been shaped by theories and measurement tools from organizational and sport coaching literatures. The present article describes the conceptual developments within athlete leadership by providing an operational definition of this construct, followed by the theories and measurement tools used to examine athlete leadership...
August 2017: Current Opinion in Psychology
https://www.readbyqxmd.com/read/28813345/choking-under-pressure-theoretical-models-and-interventions
#4
REVIEW
Christopher Mesagno, Juergen Beckmann
In sport, choking under pressure is a major concern for athletes, coaches and sport psychologists because athletes fail to meet self-imposed performance expectations in critical situations (when it counts the most), which is devastating and embarrassing. Researchers have debated choking under pressure definitions, identified personality characteristics that exacerbate choking outcomes, and examined models to determine mechanisms for choking. Based on these investigations, several interventions to prevent choking have been developed and tested...
August 2017: Current Opinion in Psychology
https://www.readbyqxmd.com/read/28813343/prevalence-of-interpersonal-violence-against-athletes-in-the-sport-context
#5
REVIEW
Sylvie Parent, Kristine Fortier
Despite progress in recent years on understanding the magnitude of the problem of interpersonal violence against athletes in the sport context, this research area is still very understudied. Yet, many researchers have advocated for the urgent need to carry out prevalence studies in this field to base prevention efforts on empirical evidence and to convince public decision makers about the necessity to address this issue. The present paper widens the focus on violence in sport, beyond the traditional player and spectator violence literature...
August 2017: Current Opinion in Psychology
https://www.readbyqxmd.com/read/28813341/coaching-effectiveness-the-coach-athlete-relationship-at-its-heart
#6
REVIEW
Sophia Jowett
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...
August 2017: Current Opinion in Psychology
https://www.readbyqxmd.com/read/28812449/balancing-performance-based-expectations-with-a-holistic-perspective-on-coaching-a-qualitative-study-of-swedish-women-s-national-football-team-coaches-practice-experiences
#7
Eva-Carin Lindgren, Natalie Barker-Ruchti
PURPOSE: The purpose of this study was to explore how an exclusive sample of women's national football team coaches described how they implement careful coaching while facing social and organizational pressure to win medals. METHOD: To consider coaches' negotiations, we drew on Noddings' concept of caring. Using an interpretive research paradigm, we conducted in-depth interviews with five Swedish women's national football team coaches. An abductive approach was used to simultaneously process the theoretical framework of "ethics of care" and the empirical data...
December 2017: International Journal of Qualitative Studies on Health and Well-being
https://www.readbyqxmd.com/read/28811750/availability-of-a-sports-dietitian-may-lead-to-improved-performance-and-recovery-of-ncaa-division-i-baseball-athletes
#8
Michael V Hull, Jonathan Neddo, Andrew R Jagim, Jonathan M Oliver, Mike Greenwood, Margaret T Jones
BACKGROUND: The purpose was to survey dietary habits (DH) and nutrient timing (NT) practices of baseball student-athletes (mean ± SD; 20.7 ± 1.4 yr.) from three NCAA Division I institutions, and examine the effect of a sports dietitian (SD) in regard to nutrition practices. METHODS: Descriptive statistics and Pearson X(2) analyses were run. Responses on 10 DH and 5 NT items differed (p ≤ 0.10) between athletes who sought dietary planning from a SD (n = 36) versus those who consulted a strength and conditioning coach (SCC, n = 42)...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28799866/proprioception-and-flexibility-profiles-of-elite-synchronized-swimmers
#9
Nora M Y Cho, Hedda P Giorgi, Karen P Y Liu, Young-Hyeon Bae, Louisa M Y Chung, Kitchana Kaewkaen, Shirley S M Fong
This study compared the full-body flexibility and joint proprioception (on land and underwater) of (a) 20 elite female synchronized swimmers (mean age ± standard deviation = 18.5 ± 1.9 years) and (b) 20 college female swim team members with no training in synchronized swimming (control participants; mean age ± standard deviation = 20.6 ± 1.3 years). Flexibility of the trunk and upper and lower limbs was measured using plastic tape and a goniometer, respectively. Joint proprioception (joint position sense) of the upper and lower limbs on land and underwater was measured by an active joint angle repositioning test...
January 1, 2017: Perceptual and Motor Skills
https://www.readbyqxmd.com/read/28761713/the-effect-of-1-week-of-repeated-ischaemic-leg-preconditioning-on-simulated-keirin-cycling-performance-a-randomised-trial
#10
Angus Lindsay, Carl Petersen, Gavin Blackwell, Hamish Ferguson, Greg Parker, Nina Steyn, Steven P Gieseg
BACKGROUND: Coaches continually seek new ways of doing things and also refine existing techniques to improve sporting performance. Coaches are currently experimenting using ischaemic preconditioning (IPC) over consecutive days in the hope of improving competitive performances. AIMS: First, to quantify the physiological impact of 1 week of IPC on simulated Keirin cycling performance. Second, to investigate if biochemical stress markers are affected over the treatment period...
2017: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/28753391/differences-in-forearm-strength-endurance-and-hemodynamic-kinetics-between-male-boulderers-and-lead-rock-climbers
#11
S Fryer, K J Stone, J Sveen, T Dickson, V España-Romero, D Giles, J Baláš, L Stoner, N Draper
This study examined differences in the oxygenation kinetics and strength and endurance characteristics of boulderers and lead sport climbers. Using near infrared spectroscopy, 13-boulderers, 10-lead climbers, and 10-controls completed assessments of oxidative capacity index and muscle oxygen consumption (mV˙O2) in the flexor digitorum profundus (FDP), and extensor digitorum communis (EDC). Additionally, forearm strength (maximal volitional contraction MVC), endurance (force-time integral FTI at 40% MVC), and forearm volume (FAV and ΔFAV) was assessed...
July 28, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28750673/the-intervention-process-in-the-european-fans-in-training-eurofit-trial-a-mixed-method-protocol-for-evaluation
#12
I van de Glind, C Bunn, C M Gray, K Hunt, E Andersen, J Jelsma, H Morgan, H Pereira, G Roberts, J Rooksby, Ø Røynesdal, M Silva, M Sorensen, S Treweek, T van Achterberg, H van der Ploeg, F van Nassau, M Nijhuis-van der Sanden, S Wyke
BACKGROUND: EuroFIT is a gender-sensitised, health and lifestyle program targeting physical activity, sedentary time and dietary behaviours in men. The delivery of the program in football clubs, led by the clubs' community coaches, is designed to both attract and engage men in lifestyle change through an interest in football or loyalty to the club they support. The EuroFIT program will be evaluated in a multicentre pragmatic randomised controlled trial (RCT), for which ~1000 overweight men, aged 30-65 years, will be recruited in 15 top professional football clubs in the Netherlands, Norway, Portugal and the UK...
July 27, 2017: Trials
https://www.readbyqxmd.com/read/28748643/protein-supplements-and-adolescent-athletes-a-pilot-study-investigating-the-risk-knowledge-motivations-and-prevalence-of-use
#13
Gavin Whitehouse, Tanya Lawlis
AIM: Protein-based sports supplements are among the more common types of nutrition supplements consumed by athletes; however, there is currently limited data investigating the knowledge, motivations and occurrence of use among the adolescent population (13-18 years). This pilot study looks to obtain initial data regarding the use of protein supplements in this population. METHODS: This study investigates the understanding and occurrence of protein supplement use in 87 adolescent athletes based in an Australian capital city who compete in a variety of sports...
July 26, 2017: Nutrition & Dietetics: the Journal of the Dietitians Association of Australia
https://www.readbyqxmd.com/read/28746660/somatic-maturation-and-the-relationship-between-bone-mineral-variables-and-types-of-sports-among-adolescents-cross-sectional-study
#14
Ricardo Ribeiro Agostinete, Igor Hideki Ito, Han Kemper, Carlos Marcelo Pastre, Mário Antônio Rodrigues-Júnior, Rafael Luiz-de-Marco, Rômulo Araújo Fernandes
CONTEXT AND OBJECTIVE: Peak height velocity (PHV) is an important maturational event during adolescence that affects skeleton size. The objective here was to compare bone variables in adolescents who practiced different types of sports, and to identify whether differences in bone variables attributed to sports practice were dependent on somatic maturation status. DESIGN AND SETTING: Cross-sectional study, São Paulo State University (UNESP). METHODS: The study was composed of 93 adolescents (12 to 16...
May 2017: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/28744238/long-term-prognostic-validity-of-talent-selections-comparing-national-and-regional-coaches-laypersons-and-novices
#15
Jörg Schorer, Rebecca Rienhoff, Lennart Fischer, Joseph Baker
In most sports, the development of elite athletes is a long-term process of talent identification and support. Typically, talent selection systems administer a multi-faceted strategy including national coach observations and varying physical and psychological tests when deciding who is chosen for talent development. The aim of this exploratory study was to evaluate the prognostic validity of talent selections by varying groups 10 years after they had been conducted. This study used a unique, multi-phased approach...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28744235/big-hitters-important-factors-characterizing-team-effectiveness-in-professional-cricket
#16
Leonie V Webster, James Hardy, Lew Hardy
While organizational psychology attests to the multidimensional nature of team effectiveness, insight regarding the most important factors contributing to the effectiveness of sports teams, especially elite teams, is lacking. An abductive method of qualitative enquiry was adopted to capture participants' construal of team effectiveness, drawing on the extant literature in both sport and organizational psychology. Semi-structured interviews were conducted with 21 players, coaches, and psychologists involved in elite cricket, with resultant data analyzed inductively initially, before being reanalyzed deductively...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28742607/pitch-counts-in-youth-baseball-and-softball-a-historical-review
#17
Brian T Feeley, Jessica Schisel, Julie Agel
OBJECTIVE: Pitching injuries are getting increased attention in the mass media. Many references are made to pitch counts and the role they play in injury prevention. The original purpose of regulating the pitch count in youth baseball was to reduce injury and fatigue to pitchers. This article reviews the history and development of the pitch count limit in baseball, the effect it has had on injury, and the evidence regarding injury rates on softball windmill pitching. DATA SOURCE: Literature search through PubMed, mass media, and organizational Web sites through June 2015...
July 21, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28742604/disparities-in-athletic-trainer-staffing-in-secondary-school-sport-implications-for-concussion-identification
#18
Emily Kroshus, Frederick P Rivara, Kathryn B Whitlock, Stanley A Herring, Sara P D Chrisman
OBJECTIVE: First, to assess whether teams at schools with an athletic trainer (AT) on staff had a higher number of diagnosed concussions than teams without medical personnel present. Second, to assess whether the variability in employment of a certified AT by Washington state high schools is patterned by socioeconomic and demographic characteristics. DESIGN: Cross-sectional survey. SETTING: Washington state public high schools. PARTICIPANTS: Stratified random sample of football and soccer coaches (n = 270 teams, 144 schools)...
July 21, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28741394/predictors-of-intervention-success-in-a-sports-based-program-for-adolescents-at-risk-of-juvenile-delinquency
#19
Anouk Spruit, Claudia van der Put, Eveline van Vugt, Geert Jan Stams
To prevent juvenile delinquency, there is growing interest in the use of sports-based interventions. To date, there is little empirical research that provides insights into for whom, how, and when sports-based crime prevention programs are most effective. Therefore, the current study assessed which youth, coach, and context factors were predictive of change in risk factors and protective factors for delinquency in a sports-based crime prevention program for at-risk adolescents. Participants ( N = 155) and their teachers filled in questionnaires about risk and protective factors for delinquency at the start of the intervention and 13 months later...
March 1, 2017: International Journal of Offender Therapy and Comparative Criminology
https://www.readbyqxmd.com/read/28741186/effects-of-caffeine-supplementation-on-performance-in-ball-games
#20
REVIEW
Jingyi Shannon Chia, Laura Ann Barrett, Jia Yi Chow, Stephen Francis Burns
Although a large body of evidence exists documenting the ergogenic properties of caffeine, most studies have focused on endurance performance. However, findings from endurance sports cannot be generalized to performance in ball games where, apart from having a high level of endurance, successful athletic performances require a combination of physiological, technical and cognitive capabilities. The purpose of this review was to critically evaluate studies that have examined the effect of a single dose of caffeine in isolation on one or more of the following performance measures: total distance, sprint performance, agility, vertical jump performance and accuracy in ball games...
July 24, 2017: Sports Medicine
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