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elite sport

Timothy J H Lathlean, Paul B Gastin, Stuart V Newstead, Caroline F Finch
OBJECTIVES: To describe the incidence, prevalence, severity, mechanism and body region of injuries in elite junior Australian football (AF) players over one competitive season in order to help inform injury prevention interventions. DESIGN: Prospective cohort, data collected during the 2014 playing season. METHODS: Player and staff-reported injuries sustained by 562 players from an under-18 state league were entered into an online sports injury surveillance system...
March 14, 2018: Journal of Science and Medicine in Sport
Kevin D Martin, Jeffrey Wake, Laura Dawson, J Preston Van Buren
Background: The prevalence of Achilles tendon (AT) pathology is common and can result in disability. Understanding normal AT properties can improve our ability to prevent AT injuries. We examined the cross-sectional area of the AT at multiple levels in an asymptomatic population of Army Rangers. Methods: This is a prospective cohort study composed of 41 voluntarily recruited United States Army Rangers deployed in a combat theater. All subjects were members of the Ranger Regiment participating in more than 20 h of intense bipedal non-sport weekly training with no history of AT pathology...
March 14, 2018: Military Medicine
Valentina Camomilla, Elena Bergamini, Silvia Fantozzi, Giuseppe Vannozzi
Recent technological developments have led to the production of inexpensive, non-invasive, miniature magneto-inertial sensors, ideal for obtaining sport performance measures during training or competition. This systematic review evaluates current evidence and the future potential of their use in sport performance evaluation. Articles published in English (April 2017) were searched in Web-of-Science, Scopus, Pubmed, and Sport-Discus databases. A keyword search of titles, abstracts and keywords which included studies using accelerometers, gyroscopes and/or magnetometers to analyse sport motor-tasks performed by athletes (excluding risk of injury, physical activity, and energy expenditure) resulted in 2040 papers...
March 15, 2018: Sensors
Xiujie Ma, Wei Sun, An Lu, Pei Ma, Chuanyin Jiang
The aim of this study was to investigate whether both suspension training (ST) and traditional training (TT) can improve Sanda athlete's strength quality of trunk muscles and to explore the effect of suspension training on Sanda athletes' trunk muscle power production. Twelve elite Sanda athletes from the Competitive Sports School of Shanghai University of Sport were randomly assigned to experimental group (EG) and control group (CG). EG and CG were regularly trained with suspension training and traditional strength training for 40 minutes three times per week...
December 2017: Journal of Exercise Science and Fitness
Tristan J Coulter, Clifford J Mallett, Jefferson A Singer
The current study adopted McAdams' multilayer framework as the basis to develop a psychological portrait of an elite athlete who was identified as being particularly 'mentally tough'. The aim was to use this single case as an exemplar to demonstrate the utility of McAdams' framework for understanding the complexity of sport performers across three domains of personality: dispositional traits, characteristic adaptations, and narrative identity. We operationalised these domains through the development of specific research questions and, subsequently, the collection and integration of the participant's Big Five traits, personal strivings, coping strategies, and response to a life story interview...
January 2018: European Journal of Personality
Ronald J Maughan, Louise M Burke, Jiri Dvorak, D Enette Larson-Meyer, Peter Peeling, Stuart M Phillips, Eric S Rawson, Neil P Walsh, Ina Garthe, Hans Geyer, Romain Meeusen, Lucas J C van Loon, Susan M Shirreffs, Lawrence L Spriet, Mark Stuart, Alan Vernec, Kevin Currell, Vidya M Ali, Richard Gm Budgett, Arne Ljungqvist, Margo Mountjoy, Yannis P Pitsiladis, Torbjørn Soligard, Uğur Erdener, Lars Engebretsen
Nutrition usually makes a small but potentially valuable contribution to successful performance in elite athletes, and dietary supplements can make a minor contribution to this nutrition programme. Nonetheless, supplement use is widespread at all levels of sport. Products described as supplements target different issues, including (1) the management of micronutrient deficiencies, (2) supply of convenient forms of energy and macronutrients, and (3) provision of direct benefits to performance or (4) indirect benefits such as supporting intense training regimens...
March 14, 2018: British Journal of Sports Medicine
Jason McGahan, Con Burns, Seán Lacey, Tim Gabbett, Cian O' Neill
PURPOSE: This study investigated the positional running demands of elite Gaelic football players during match-play and compared these demands with typical training activities used to prepare players for competition. METHODS: Global positioning system (GPS) data was obtained from thirty elite Gaelic football players (26.9 ± 3.5 years, 182.8 ± 6.1 cm, 84.6 ± 8.1 kg) across a full season (13 competitive games and 78 training sessions). Only players who completed the full match and respective training sessions were included (n = 107 match files and n = 1,603 training files)...
March 12, 2018: Journal of Strength and Conditioning Research
Steven H Doeven, Michel S Brink, Silke J Kosse, Koen A P M Lemmink
Background: Insufficient postmatch recovery in elite players may cause an increased risk of injuries, illnesses and non-functional over-reaching. Objective: To evaluate postmatch recovery time courses of physical performance and biochemical markers in team ball sport players. Study design: Systematic review. Data sources: PubMed and Web of Science. Eligibility criteria for selecting studies: This systematic review was conducted according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines...
2018: BMJ Open Sport & Exercise Medicine
Martin K Erikstad, Rune Høigaard, Bjørn Tore Johansen, Ngianga-Bakwin Kandala, Tommy Haugen
Childhood sport participation is argued to be important to understand differences in self-regulation and performance level in adolescence. This study sought to investigate if football-specific activities in childhood (6-12 years of age) is related to self-regulatory skills and national under 14- and 15-team selection in Norwegian elite youth football. Data of practice histories and self-regulatory skills of 515 youth football players selected at Norwegian regional level were collected and further analysed using multilevel analyses...
March 9, 2018: Journal of Sports Sciences
Arne Güllich
Elite track and field athletes with greater and lesser multi-year performance improvement were compared regarding their developmental sport-specific and non-specific, organised (coach-led) and non-organised (peer-led) sporting activities. Athlete pairs were matched on gender, discipline and baseline performance in competitions (at 13/19 years). Their unequal subsequent performance development during junior (13-17 years; n = 138) and senior (19-23+ years; n = 80) age ranges defined "strong responders" and "weak responders"...
March 9, 2018: Journal of Sports Sciences
Alicia M Montalvo, Daniel K Schneider, Laura Yut, Kate E Webster, Bruce Beynnon, Mininder S Kocher, Gregory D Myer
OBJECTIVE: To estimate the incidence proportion (IP) and incidence rate (IR) for ACL injury in athletes. DESIGN: Systematic review with meta-analysis DATA SOURCES: The PubMed, CINAHL and SPORTDiscus electronic databases were searched from inception to 20 January 2017. ELIGIBILITY CRITERIA FOR SELECTING STUDIES: Studies were included if they reported total number of participants/population by sex, total number of ACL injuries by sex and total person-time by sex...
March 7, 2018: British Journal of Sports Medicine
Anthony R Bain, Ivan Drvis, Zeljko Dujic, David B MacLeod, Philip N Ainslie
NEW FINDINGS: What is the topic of this review? This review provides an up-to-date assessment of the physiology involved with extreme static dry-land breath holding in trained apneists. What advances does it highlight? We specifically highlight the recent findings involved with the cardiovascular, cerebrovascular, and metabolic function during a maximal breath hold in elite apneists. ABSTRACT: Breath hold related activities have been performed for centuries, but only recently within the last ∼30 years has it emerged as an increasingly popular competitive sport...
March 7, 2018: Experimental Physiology
Philip Von Rosen, Anders Kottorp, Cecilia Fridén, Anna Frohm, Annette Heijne
Even though injury is common in elite sports, there is still a lack of knowledge of young athletes' injury perception both during and after injury. The aim of this mixed-method study was, therefore, to explore, in-depth, data on injury consequences and adolescent elite athletes' perceptions and experience of injury. Three hundred and forty adolescent elite athletes (age range 15-19), from 16 different sports, were bi-weekly monitored over 52 weeks using a valid questionnaire. Twenty athletes from the same cohort were interviewed in focus groups about injury experience and perceptions...
March 3, 2018: European Journal of Sport Science
Liam A Toohey, Michael K Drew, Lauren V Fortington, Caroline F Finch, Jill L Cook
BACKGROUND: Accounting for subsequent injuries is critical for sports injury epidemiology. The subsequent injury categorisation (SIC-1.0) model was developed to create a framework for accurate categorisation of subsequent injuries but its operationalisation has been challenging. OBJECTIVES: The objective of this study was to update the subsequent injury categorisation (SIC-1.0 to SIC-2.0) model to improve its utility and application to sports injury datasets, and to test its applicability to a sports injury dataset...
March 3, 2018: Sports Medicine
Gabriele Mascherini, Cristian Petri, Giorgio Galanti
BACKGROUND: Cardiac adaptation to intense physical training is determined by many factors. Differences between the sexes in the left ventricle parameters are well established, however, both sport activity and body composition seem to reduce them. In order to better explain some heart modifications, a first approach was to eliminate the fat mass from the indexing of the left ventricular parameters. Fat free mass also contains the extracellular mass which does not represent a metabolically active compartment...
March 1, 2018: Journal of Sports Medicine and Physical Fitness
Juan Marcos González, F Reed Johnson, Matthew Fedoruk, Joshua Posner, Larry Bowers
BACKGROUND: The Goldman dilemma presented athletes with a Faustian bargain that guaranteed winning an Olympic gold medal in their sport but resulted in certain death 5 years later. Athletes' responses to Goldman's bargain were reported from 1982 to 1995. Several studies subsequently evaluated people's willingness to accept the bargain proposed in the Goldman question. Our study updates Goldman's question using contingent-behavior questions, a preference-elicitation method widely applied in economics, marketing and psychology to understand people's choice behavior...
March 1, 2018: Sports Medicine
Nikolaos Malliaropoulos, Georgios Bikos, Maria Meke, Korakakis Vasileios, Xavier Valle, Heinz Lohrer, Nicola Maffulli, Nat Padhiar
Background: Inversion injury to the ankle and hamstring injuries are common problems in most sports. It is not known whether these injuries constitute a predisposing factor or a precursor of injury or re-injury of these anatomical locations. Therefore, we wished to test the hypothesis that a previous inversion ankle injury exerted a significant effect on the chance of an athlete suffering from a subsequent ipsilateral hamstring injury and vice versa. Methods: In an observational cohort study over 17 years (1998-2015), 367 elite track and field athletes, were grouped according to their first traumatic isolated ankle or hamstring injury...
2018: Journal of Foot and Ankle Research
Pingwei Li, Veerle De Bosscher, Johan Pion, Juanita R Weissensteiner, Jikkemien Vertonghen
Currently in the literature, there is a dearth of empirical research that confirms whether international junior success is a reliable predictor for future international senior success. Despite the uncertainty of the junior-senior relationship, federations and coaches still tend to use junior success as a predictor for long-term senior success. A range of former investigations utilising a retrospective lens has merely focused on success that athletes attained at junior level competitions. Success that was achieved at senior-level competitions but at a junior age was relatively ignored...
March 1, 2018: European Journal of Sport Science
Lindsay V Slater, Melissa Vriner, Kristen Schuyten, Peter Zapalo, Joseph M Hart
Asymmetrical dynamic balance compared to normative populations have been associated with increased risk of injury in athletes, however it is unclear if the current data are similar to balance performance in figure skaters. Therefore, the purpose of this study was to compare performance on the y-balance test between sexes and disciplines in elite figure skaters. Thirty-two senior level figure skaters from 3 different disciplines (singles, dance, pair) completed the y-balance test on the take-off and landing leg...
February 27, 2018: Journal of Strength and Conditioning Research
Robert M Barker-Davies, Andrew Roberts, Alexander N Bennett, Daniel T P Fong, Patrick Wheeler, Mark P Lewis
BACKGROUND: Single leg squats are commonly used subjective assessments of general biomechanical function, injury risk, as a predictor for recovery and as an outcome measure of rehabilitation. While 3D motion capture is a useful tool for elite sports performance and research it is impractical for routine clinical use. RESEARCH QUESTION: This cross-sectional study aims to: assess reliability and validity of clinicians' subjective ratings of single leg squats compared to 3D motion capture, and to identify whether performance predicts joint moments...
February 21, 2018: Gait & Posture
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