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Contact sport

Emily Kroshus, Christine M Baugh, William P Meehan, Kasisomayajula Viswanath
BACKGROUND: There is increasing focus on the number of concussions after which an athlete should discontinue participating in contact or collision sports. This is a clinically subjective and, in some cases, a preference-sensitive decision. PURPOSE: Our goal was to assess whether there is personal subjectivity in when athletic trainers (ATs) discuss the possibility of sport retirement post-concussion with athletes. METHODS: A national sample of ATs who provide clinical care to college athletes completed a questionnaire (n = 677, 34% response rate)...
July 31, 2018: Social Science & Medicine
Alireza Esmaeili, William G Hopkins, Andrew M Stewart, George P Elias, Brendan H Lazarus, Robert J Aughey
Aim: Relationships between athlete monitoring-derived variables and injury risk have been investigated predominantly in isolation. The aim of this study was to evaluate the individual and combined effects of multiple factors on the risk of soft-tissue non-contact injuries in elite team sport athletes. Methods: Fifty-five elite Australian footballers were prospectively monitored over two consecutive seasons. Internal and external training load was quantified using the session rating of perceived exertion and GPS/accelerometry, respectively...
2018: Frontiers in Physiology
Brendan O'Connell, Fiona Wilson, Noreen Boyle, Tom O'Dwyer, Karl Denvir, Garreth Farrell, Áine M Kelly
OBJECTIVES: Examine the effects of match play and a season of training on serum S100B concentration in male professional rugby players. To assess the influence of contact play, values were compared with age- and fitness-matched athletes not involved in a contact sport. METHODS: Over a 2-year period, blood samples were collected from 38 players in pre-season, end of season, and post-matches (within 2 h). A control group of rowers (n = 15) was assessed pre- and post-training...
October 16, 2018: Brain Injury: [BI]
Kyle R Lynch, Michael Fredericson, Bruna Turi-Lynch, Ricardo R Agostinete, Igor H Ito, Rafael Luiz-de-Marco, Mario A Rodrigues-Junior, Rômulo A Fernandes
OBJECTIVES: To investigate the effects of different sports on the incidence of traumatic fractures (TF; sport-related fractures and those occurring in daily activities) among adolescents during the 9-month follow-up period. METHODS: The adolescents were contacted in 11 different locations (3 public/private schools and 8 sports clubs), and the final sample was divided into 3 groups: control (n = 121), swimming (n = 51), and impact sports (n = 142). The incidence of TF was calculated by considering the exposure to sports (TF/1000 h)...
October 13, 2018: Pediatric Exercise Science
Leonard Achenbach, Werner Krutsch, Matthias Koch, Florian Zeman, Michael Nerlich, Peter Angele
PURPOSE: Side-to-side asymmetry in side-cutting manoeuvres is a known risk factor for severe knee injury. Potential leg asymmetry during ground contact times of different change-of-direction manoeuvres was evaluated in athletes by means of the recently developed SpeedCourt® system. The hypotheses were that ground contact times and the limb symmetry index are affected by age and the type of sports. METHODS: One-hundred and sixty-five athletes (149 men, 16 women, age 16...
October 12, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Thomas Gan, Andre Rickenbach, Matthew Scott-Young
Chronic persistent lower back pain due to degenerative disc disease (DDD) of the lumbar spine is a common condition in the athletic population, which does not always improve with nonoperative treatment. We present a case report of a professional Australian rugby league player with DDD of the lumbar spine presenting with persistent lower back pain, which was not responding to conventional nonsurgical treatment. He then underwent a surgical total disc replacement of the lumbar spine and was subsequently able to return to playing professional rugby league at his previous level of competition...
October 9, 2018: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
Robin Mawson, Michael J Creech, Devin C Peterson, Forough Farrokhyar, Olufemi R Ayeni
BACKGROUND: Participation in youth soccer carries a significant risk of injury, most commonly non-contact injuries of the lower extremity. A growing body of research supports the use of neuromuscular interventions by teams to prevent such injuries, yet the uptake of these recommendations by soccer teams remains largely unexplored. The purposes of the study were to determine (1) the level of awareness by youth coaches of injury prevention programs and their efficacy; (2) the number of youth coaches that use these interventions; and (3) barriers and potential facilitators to implementing a sustainable injury prevention program...
October 11, 2018: Journal of Experimental Orthopaedics
Sally Bromley, Michael Drew, Scott Talpey, Andrew McIntosh, Caroline Finch
BACKGROUND: Electronic methods are increasingly being used to manage health-related data among sporting populations. Collection of such data permits the analysis of injury and illness trends, improves early detection of injuries and illnesses, collectively referred to as health problems, and provides evidence to inform prevention strategies. The Athlete Management System (AMS) has been employed across a range of sports to monitor health. Australian combat athletes train across the country without dedicated national medical or sports science teams to monitor and advocate for their health...
October 9, 2018: JMIR Human Factors
Gabriel S Walt, Hannah M Burris, Christopher B Brady, Keith R Spencer, Victor E Alvarez, Bertrand R Huber, Latease Guilderson, Nazifa Abdul Rauf, Derek Collins, Tarnjit Singh, Rebecca Mathias, James G Averill, Sean E Walker, Ian Robey, Ann C McKee, Neil W Kowall, Thor D Stein
Chronic traumatic encephalopathy (CTE) is a progressive neurodegenerative disorder linked to repetitive head impacts and has been associated with amyotrophic lateral sclerosis (ALS), a fatal, degenerative neuromuscular disorder. The Department of Veterans Affairs Biorepository Brain Bank (VABBB) is a tissue repository that collects antemortem disease progression data and postmortem central nervous system tissue from veterans with ALS. We set out to determine the frequency of co-morbid ALS and CTE in the VABBB cohort and to characterize the clinical, genetic, and pathological distinctions between participants with ALS only and those with both ALS and CTE (ALS+CTE)...
October 9, 2018: Journal of Neuropathology and Experimental Neurology
Jill Daugherty, Kelly Sarmiento
INTRODUCTION/BACKGROUND: Chronic Traumatic Encephalopathy (CTE) is a neurodegenerative disease thought to be caused by repeated head impacts and associated with deficits in cognition. Despite research and media attention, there is little science-based information available for the public. Also unclear is what the public and particularly parents of youth athletes know about CTE. The U.S. Centers for Disease Control and Prevention (CDC) surveyed parents of young athletes to fill this gap...
October 8, 2018: Brain Injury: [BI]
Lana M Pfaff, Michael E Cinelli
Individuals use visual information to plan and adapt movements to dynamically changing environments. This information is used to accurately determine when and where they may come in contact with an object. More specifically, individuals may determine the time prior to contacting an object, known as time-to-contact (TTC). Sport provides a scenario where athletes compete in dynamically changing environments and must interact with opposing players. The effects of sport-specific training on obstacle avoidance is highly controversial and research suggests the quantifiable differences in behaviours compared to non-athletes is highly context specific...
October 1, 2018: Human Movement Science
Frowin Fasold, Dennis Redlich
Attacking phases in team handball are highly dynamic, characterized by fast movements and a high frequency of fast passes with the aim to score a goal. Consequently, the opposing/defending team tries to prevent successful offensive actions by restraining the offensive opportunities and the probabilities of scoring a goal. According to the rules, defensive players are allowed to use body contact (e.g. with bent arms) to get in and keep their optimal defending position. If such a contact is not in line with the rules (e...
August 31, 2018: Journal of Human Kinetics
Kourosh Zarghooni, Lisa Hub, Jan Bredow, Ayla Yagdiran, Roslind K Hackenberg, Max Scheyerer, Leonard Westermann, Peer Eysel, Jan Siewe
BACKGROUND: Equestrian vaulting is a sport, particularly popular among children and adolescents, in which gymnastic and dance routines are performed on horseback. Current data regarding injuries and thus, the risks of this sport, is meager and based only on retrospective studies. METHODS: In the current prospective study, 233 active members of a vaulting club were questioned monthly from November 2014 until October 2015. In addition to general information (training, competitions), the questionnaire collected the number of competitions, the competitive class, the discipline (single, team, Pas-de-Deux), and injuries (type, localization, treatment)...
September 27, 2018: Journal of Sports Medicine and Physical Fitness
Benton A Emblom, Taylor Mathis, Kyle Aune
Background: A rectus abdominis-adductor longus (RA-AL) aponeurotic plate injury, commonly associated with athletic pubalgia, sports hernia, or a core muscle injury, causes significant dysfunction in athletes. Increased recognition of this specific injury distinct from inguinal hernia abnormalities has led to better management of this debilitating condition. Hypothesis: Surgical repair of RA-AL aponeurotic plate injuries will result in decreased symptoms and high rates of return to play...
September 2018: Orthopaedic Journal of Sports Medicine
Sabiha Gati, Aneil Malhotra, Sanjay Sharma
Valvular heart disease affects 1%-2% of young individuals, many of whom aspire to partake in competitive sport or high intensity recreational exercise. There are limited reports on the impact of intensive physical activity on the progression of valvular heart disease; therefore, current recommendations are based on consensus opinion. The management of exercising individuals with valvular heart disease requires a structured approach that incorporates several key factors including symptomatic status, functional capacity, type and nature of the valvular lesion, impact on ventricular structure and function and effect on pulmonary artery pressure...
September 27, 2018: Heart: Official Journal of the British Cardiac Society
Mithun Neral, Derrick M Knapik, Robert J Wetzel, Michael J Salata, James E Voos
Background: Scapular body fractures generally occur as a result of high-energy, direct trauma to the shoulder sustained in automobile accidents. While such mechanisms have been well described, little is known about scapular body fractures sustained during sporting activities. Questions/Purposes: We sought to systematically review the literature on scapular body fracture sustained during sporting activity, recording rates and mechanisms of injury, management strategies, and return-to-sport times...
October 2018: HSS Journal: the Musculoskeletal Journal of Hospital for Special Surgery
Loïc Geffroy, Nicolas Lefevre, Camille Thevenin-Lemoine, Antoine Peyronnet, Walid Lakhal, Jean Marie Fayard, Franck Chotel
BACKGROUND: The primary objective of this study was to determine the time to and level of return to sports after anterior cruciate ligament (ACL) reconstruction in children and adolescents. The secondary objectives were to evaluate the risk of early ACL re-tear after return to sports and the risk of ACL tear in the contralateral knee. HYPOTHESIS: The time to return to sports in young patients is considerably longer than in adults. METHODS: A prospective multicentre study was conducted at 12 centres specialised in knee ligament surgery, in children and adolescents younger than 18 years, between 1 January 2015 and 31 October 2015...
September 22, 2018: Orthopaedics & Traumatology, Surgery & Research: OTSR
Gillian Weir, Richard van Emmerik, Carl Jewell, Joseph Hamill
BACKGROUND: Numerous investigations have attempted to link the incidence and risk of non-contact anterior cruciate ligament injuries to specific intrinsic and extrinsic mechanisms. However, these are often measured in isolation. RESEARCH QUESTION: This study utilizes a dynamical systems approach to investigate differences in coordination and coordination variability between segments and joints in anticipated and unanticipated sidestepping, a task linked to a high risk of non-contact anterior cruciate ligament injuries...
September 9, 2018: Gait & Posture
Rachel E Ward, Alycia Fong Yan, Karl F Orishimo, Ian J Kremenic, Marshall Hagins, Marijeanne Liederbach, Claire Hiller, Evangelos Pappas
Repetition of jumps in dance and sport training poses a potential injury risk, however non-contact landing injuries are more common in athletes than dancers. This study aimed to compare the lower limb stiffness characteristics of dancers and athletes during drop landings to investigate possible mechanisms of impact-related injuries. Kinematics and kinetics were recorded as 39 elite modern and ballet dancers (19 men, 20 women) and 40 college level team sport athletes (20 men, 20 women) performed single-legged drop landings from a 30-cm platform...
September 22, 2018: Scandinavian Journal of Medicine & Science in Sports
Ben Kirk, Jamie N Pugh, Rosanna Cousins, Shaun M Phillips
Using a cross-sectional survey concussion knowledge was evaluated among forty university-level athletes ( n = 20, rugby union players; n = 20, Gaelic football players) and eight experienced team coaches ( n = 2, rugby union; n = 2, Gaelic football; n = 1, soccer; n = 1, hockey; n = 1, netball; n = 1, basketball). Levels of knowledge of concussion were high across all participants. Coaches had higher knowledge scores for almost all areas; however, there was evidence of important gaps even in this group. Knowledge was not sufficient in identifying concussion, and when it is safe to return to play following a concussion...
September 20, 2018: Sports
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