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https://www.readbyqxmd.com/read/29045316/understanding-the-relationship-between-coach-and-athlete-perceptions-of-training-intensity-in-youth-sport
#1
Sean Scantlebury, Kevin Till, Tom Sawczuk, Jonathon Weakley, Ben Jones
To alleviate issues arising from the over/under prescription of training load, coaches must ensure that desired athlete responses to training are being achieved. The present study aimed to assess the level of agreement between the coach intended (pre-session) and observed (post-session) rating of perceived exertion (RPE), with athlete RPE during different training intensities (easy, moderate, hard). Coach intended RPE was taken prior to all field based training sessions over an 8 week in-season period. Following training, all coaches and athletes, whom were participants in hockey, netball, rugby and soccer were asked to provide an RPE measure for the completed session...
October 16, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29043512/comparisons-of-perceived-training-doses-in-champion-collegiate-level-male-and-female-cross-country-runners-and-coaches-over-the-course-of-a-competitive-season
#2
Kyle R Barnes
BACKGROUND: Session rating of perceived exertion (sRPE) is a practical tool for coaches to assess internal training load of their athletes. In a sport like cross-country running, that is individual in nature, but has a team training and competition component, information about the association between external and internal load is lacking. Furthermore, there is a need for studies that examine perception of training doses across multiple training cycles including the competitive season as well as between male and female athletes...
October 17, 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/29035615/improving-mobility-performance-in-wheelchair-basketball
#3
Thom T J Veeger, Annemarie M H De Witte, Monique A M Berger, Rienk M A Van Der Slikke, Dirkjan H E J Veeger, Marco J M Hoozemans
OBJECTIVE: This study aimed to investigate which characteristics of athlete, wheelchair and athlete-wheelchair interface are the best predictors of wheelchair basketball mobility performance. DESIGN: Sixty experienced wheelchair basketball players performed a wheelchair mobility performance test to assess their mobility performance. To determine which variables were the best predictors of mobility performance, forward stepwise linear regression analyses were performed on a set of 33 characteristics, including ten athlete, nineteen wheelchair and four athlete-wheelchair interface characteristics...
October 16, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/29035592/returners-exhibit-greater-jumping-performance-improvements-during-a-peaking-phase-compared-to-new-players-on-a-volleyball-team
#4
Caleb D Bazyler, Satoshi Mizuguchi, Ashley A Kavanaugh, John J McMahon, Paul Comfort, Michael H Stone
PURPOSE: To determine if jumping performance changes during a peaking phase differed between returners and new players in a female collegiate volleyball team and to determine which variables best explained the variation in performance changes. METHODS: Fourteen volleyball players were divided into two groups: returners (n=7) and new players (n=7) who completed a 5-week peaking phase prior to conference championships. Players were tested at baseline prior to the pre-season on measures of vastus lateralis cross-sectional area using ultrasonography, estimated back squat one repetition maximum (1-RM), and countermovement jump height (JH) and relative peak power (PPa) on a force platform...
October 16, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29031642/the-effect-of-oral-contraceptive-use-on-salivary-testosterone-concentrations-and-athlete-performance-during-international-field-hockey-matches
#5
Blair T Crewther, David Hamilton, Liam P Kilduff, Scott Drawer, Christian J Cook
OBJECTIVES: To investigate the effect of oral contraceptive (OC) use on salivary testosterone (sal-T) concentrations and performance-related statistics in international field hockey matches. DESIGN: A cohort observational study with repeated measures. METHODS: Twenty-three elite female athletes were monitored across four international field hockey matches over a nine-day period. Salivary T was assessed 45min before each match and several match performance statistics were collated; load (i...
September 29, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29028625/difference-in-kick-motion-of-adolescent-soccer-players-in-presence-and-absence-of-low-back-pain
#6
Michio Tojima, Suguru Torii
Many adolescent soccer players experience low back pain (LBP). However, there are no reports studying the kick motion of adolescent soccer players experiencing LBP. This study aimed to clarify the kick motion of adolescent soccer players in the presence and absence of LBP. We recruited 42 adolescent soccer players and divided them into two groups according to the presence of LBP (LBP group, n=22) and absence of LBP (NBP group, n=20). We measured real-time kick motion using a three-dimensional motion analysis system...
October 7, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29026842/knowledge-attitude-and-practice-of-iranian-pharmacists-body-builders-and-their-coaches-regarding-sports-supplements
#7
Peivand Bastani, Ali Amjad Nia, Mohammadreza Shabanpoor, Safoora Mehravar, Sara Kashefian
OBJECTIVE: This study is conducted on Iranian pharmacists, coaches, and athletes regarding sports supplements to assess their knowledge, attitude, and practice (KAP) regarding sports supplements. METHODS: This was a cross-sectional study conducted in 2015. The study population consisted of all community pharmacists, bodybuilders, and bodybuilding coaches. The questionnaire was applied consisting some demographic questions and 25 questions for assessing KAP (6, 9, and 10, respectively)...
July 2017: Journal of Research in Pharmacy Practice
https://www.readbyqxmd.com/read/29023331/effects-of-plyometric-training-on-components-of-physical-fitness-in-prepuberal-male-soccer-athletes-the-role-of-surface-instability
#8
Yassine Negra, Helmi Chaabene, Senda Sammoud, Raja Bouguezzi, Bessem Mkaouer, Younés Hachana, Urs Granacher
Negra, Y, Chaabene, H, Sammoud, S, Bouguezzi, R, Mkaouer, B, Hachana, Y, and Granacher, U. Effects of plyometric training on components of physical fitness in prepuberal male soccer athletes: the role of surface instability. J Strength Cond Res XX(X): 000-000, 2017-Previous studies contrasted the effects of plyometric training (PT) conducted on stable vs. unstable surfaces on components of physical fitness in child and adolescent soccer players. Depending on the training modality (stable vs. unstable), specific performance improvements were found for jump (stable PT) and balance performances (unstable PT)...
October 10, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29023329/living-and-training-at-825m-for-8-weeks-supplemented-with-intermittent-hypoxic-training-at-3000m-improves-blood-parameters-and-running-performance
#9
Preetiwat Wonnabussapawich, Michael J Hamlin, Catherine A Lizamore, Nuttaset Manimmanakorn, Naruemon Leelayuwat, Orathai Tunkamnerdthai, Worrawut Thuwakum, Apiwan Manimmanakorn
We aimed to investigate the effect of an 8-week low-altitude training block supplemented with intermittent hypoxic training, on blood and performance parameters in soccer players. Forty university-level male soccer players were separated into altitude (n = 20, 825m) or sea level (n = 20, 125m) groups. Before (1-2 days prior) and after (1 and 14 days post) training, players were asked to give a resting venous blood sample and complete a series of performance tests. Compared to sea level, the altitude group increased erythropoietin, red cell count and hematocrit 1 day post training (42...
October 10, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29023194/factors-that-drive-youth-specialization
#10
Ajay S Padaki, Charles A Popkin, Justin L Hodgins, David Kovacevic, Thomas Sean Lynch, Christopher S Ahmad
BACKGROUND: Specialization in young athletes has been linked to overuse injuries, burnout, and decreased satisfaction. Despite continued opposition from the medical community, epidemiological studies suggest the frequency is increasing. HYPOTHESIS: Extrinsic pressures in addition to individual aspirations drive this national trend in sports specialization. STUDY DESIGN: Descriptive epidemiology study. LEVEL OF EVIDENCE: Level 3...
October 1, 2017: Sports Health
https://www.readbyqxmd.com/read/29018359/that-escalated-quickly-planning-to-ignore-rpe-can-backfire
#11
Maik Bieleke, Wanja Wolff
Ratings of perceived exertion (RPE) are routinely assessed in exercise science and RPE is substantially associated with physiological criterion measures. According to the psychobiological model of endurance, RPE is a central limiting factor in performance. While RPE is known to be affected by psychological manipulations, it remains to be examined whether RPE can be self-regulated during static muscular endurance exercises to enhance performance. In this experiment, we investigate the effectiveness of the widely used and recommended self-regulation strategy of if-then planning (i...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28993006/promoting-sunscreen-use-and-sun-protective-practices-in-ncaa-athletes-impact-of-sunsport-educational-intervention-for-student-athletes-athletic-trainers-and-coaches
#12
Mina S Ally, Susan M Swetter, Kelsey E Hirotsu, Justin Gordon, David Kim, Ashley Wysong, Lindsy Donnelly, Shufeng Li, Kristin M Nord
BACKGROUND: Student-athletes (SAs) have an increased skin cancer risk on account of significant ultraviolet exposure; however, their sun-protective practices are suboptimal. A novel program, Stanford University Network for Sun Protection, Outreach, Research, and Teamwork (SUNSPORT), was designed to target SAs, coaches, and athletic trainers (ATs). OBJECTIVE: To measure the impact of educational intervention on sun protection beliefs and practices of SAs. METHODS: A survey of sun protection beliefs and practices was administered to National Collegiate Athletic Association athletes before and after intervention...
October 6, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28976928/intended-or-unintended-doping-a-review-of-the-presence-of-doping-substances-in-dietary-supplements-used-in-sports
#13
REVIEW
José Miguel Martínez-Sanz, Isabel Sospedra, Christian Mañas Ortiz, Eduard Baladía, Angel Gil-Izquierdo, Rocio Ortiz-Moncada
INTRODUCTION: The use of dietary supplements is increasing among athletes, year after year. Related to the high rates of use, unintentional doping occurs. Unintentional doping refers to positive anti-doping tests due to the use of any supplement containing unlisted substances banned by anti-doping regulations and organizations, such as the World Anti-Doping Agency (WADA). The objective of this review is to summarize the presence of unlabeled doping substances in dietary supplements that are used in sports...
October 4, 2017: Nutrients
https://www.readbyqxmd.com/read/28976815/dissemination-and-implementation-strategies-of-lower-extremity-preventive-training-programs-in-youth-a-clinical-review
#14
Lindsay J DiStefano, Barnett S Frank, Hayley J Root, Darin A Padua
CONTEXT: Neuromuscular preventive training programs effectively reduce injury and improve performance in youth athletes. However, program effectiveness is directly linked to program compliance, fidelity, and dosage. Preventive training programs are not widely adopted by youth sport coaches. One way to promote widespread dissemination and compliance is to identify implementation strategies that influence program adoption and maintenance. It is unknown how previously published programs have followed the elements of an implementation framework...
October 1, 2017: Sports Health
https://www.readbyqxmd.com/read/28975667/development-of-a-nutrition-knowledge-questionnaire-for-young-endurance-athletes-and-their-coaches
#15
Maria Heikkilä, Raisa Valve, Mikko Lehtovirta, Mikael Fogelholm
Both athletes and coaches should have adequate nutrition knowledge in order to understand the importance of diet on athletic performance, recovery and health. Nutrition knowledge can be assessed reliably only by validated knowledge questionnaires. The aim of the present study was to develop a reliable and valid questionnaire for assessing the nutrition knowledge of young endurance athletes and their coaches. The questionnaire was developed with an expert panel and pilot tested by athletes, coaches and students...
October 4, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28975135/quantifying-parental-influence-on-youth-athlete-specialization-a-survey-of-athletes-parents
#16
Ajay S Padaki, Christopher S Ahmad, Justin L Hodgins, David Kovacevic, Thomas Sean Lynch, Charles A Popkin
BACKGROUND: Youth athlete specialization has been linked to decreased enjoyment, burnout, and increased injury risk, although the impact of specialization on athletic success is unknown. The extent to which parents exert extrinsic influence on this phenomenon remains unclear. PURPOSE/HYPOTHESIS: The goal of this study was to assess parental influences placed on young athletes to specialize. It was hypothesized that parents generate both direct and indirect pressures on specialized athletes...
September 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28972821/development-and-initial-validation-of-an-instrument-to-assess-stressors-among-south-african-sports-coaches
#17
Alliance Kubayi, Abel Toriola, Faye Didymus
The aim of this series of studies was to develop and initially validate an instrument to assess stressors among South African sports coaches. In study one, a preliminary pool of 45 items was developed based on existing literature and an expert panel was employed to assess the content validity and applicability of these items. In study two, the 32 items that were retained after study one were analysed using principal component analysis (PCA). The resultant factorial structure comprised four components: environmental stressors, performance stressors, task-related stressors, and athlete stressors...
October 3, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28967836/creating-and-sustaining-a-culture-of-excellence-insights-from-accomplished-university-team-sport-coaches
#18
Daniela Donoso-Morales, Gordon A Bloom, Jeffrey G Caron
PURPOSE: Winning several national championships is an extraordinary feat that very few university coaches have accomplished. The objective of this study was to investigate how some of Canada's most accomplished university team-sport coaches created and sustained a culture of excellence in their programs. METHOD: Six university coaches who had won more than 30 national titles participated in this study. Each coach participated in a semistructured interview, and the qualitative data were inductively analyzed using a thematic analysis...
October 2, 2017: Research Quarterly for Exercise and Sport
https://www.readbyqxmd.com/read/28966376/current-concepts-in-sports-injury-rehabilitation
#19
Himmat Dhillon, Sidak Dhilllon, Mandeep S Dhillon
In the modern era, rehabilitation after sports injury has become a domain for specialists, and its evolution has necessarily brought together the sports physiotherapist, the sports physician, and the orthopedic surgeon. The changing profile of sports related injury, as well as limited availability of facilities for rehabilitation in many areas of India, is a matter of concern. Elite sportspersons have some protection, but the average athlete is often left to fend for himself. Key factors in successful sports injury rehabilitation protocols are the application of modern rehabilitation protocols under appropriate supervision, appropriate and well timed surgical interventions, and judicious and need based use of pharmaceutical agents...
September 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28963129/trapped-sweat-in-basketball-uniforms-and-the-effect-on-sweat-loss-estimates
#20
Lindsay B Baker, Adam J Reimel, Bridget C Sopeña, Kelly A Barnes, Ryan P Nuccio, Peter John D De Chavez, John R Stofan, James M Carter
The aims of this study were to determine: (1) trapped sweat (TS) in basketball uniforms and the effect on sweat loss (SL) estimates during a laboratory-based basketball simulation protocol; (2) the impact of exercise intensity, body mass, age, and SL on TS; and (3) TS during on-court training to assess the ecological validity of the laboratory-based results. Twenty-four recreational/competitive male basketball players (23 ± 10 years, 77.0 ± 16.7 kg) completed three randomized laboratory-based trials (Low, Moderate, and High intensity) consisting of 150-min intermittent exercise...
September 2017: Physiological Reports
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