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https://www.readbyqxmd.com/read/29791977/no-association-between-rate-of-torque-development-and-onset-of-muscle-activity-with-increased-risk-of-hamstring-injury-in-elite-football
#1
Nicol van Dyk, Roald Bahr, Angus F Burnett, Evert Verhagen, Damien von Tiggelen, Erik Witvrouw
INTRODUCTION: Hamstring injuries remain a significant burden in sports that involve high speed running. In elite male football, hamstring injury has repeatedly been identified as the most common noncontact injury, representing 12% of all injuries. As the incidence remains high, investigations are aimed at better understanding how to improve prevention efforts. Intrinsic risk factors such as strength have been investigated extensively in a cohort of professional football players; however, other intrinsic measures of neuromuscular function have not been studied in this cohort...
May 23, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29791002/optimizing-stadium-evacuation-by-integrating-geocomputation-and-affordance-theory
#2
Joslyn Zale, Bandana Kar, David Cochran
Football is culturally and economically important in the United States, and football stadiums are part of the country's critical infrastructure, thus receiving government protection against hazard events. In this project, an agent-based evacuation model was implemented to optimize evacuation time from The University of Southern Mississippi's M.M. Roberts Stadium (football) by accounting for evacuees' age, gender, physical fitness, alcohol consumption, and prior experience with hazard events. The findings revealed that (i) the age and gender of an individual impact his/her locomotion speed and (ii) evacuation route choice is influenced by evacuees' perception of its safety and effectiveness...
March 2018: Journal of Emergency Management: JEM
https://www.readbyqxmd.com/read/29789252/a-history-of-anterior-cruciate-ligament-reconstruction-at-the-national-football-league-combine-results-in-inferior-early-national-football-league-career-participation
#3
Matthew T Provencher, James P Bradley, Jorge Chahla, Anthony Sanchez, Brendin R Beaulieu-Jones, Justin W Arner, Nicholas I Kennedy, George Sanchez, Mitchell I Kennedy, Gilbert Moatshe, Mark E Cinque, Robert F LaPrade
PURPOSE: To evaluate whether players with a history of an anterior cruciate ligament reconstruction (ACLR) before the National Football League (NFL) Combine played or started fewer games and/or participated in fewer eligible snaps compared with NFL Combine participants without a history of knee injury or surgery. METHODS: We performed a retrospective review of all players who participated in the NFL Combine between 2009 and 2015 and who had a history of an ACLR...
May 19, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29785871/strategies-to-improve-impact-efficiency-in-football-kicking
#4
James C A Peacock, Kevin Ball
In football, kicking with high ball velocity can increase scoring opportunities and reduce the likelihood of interception. Efficient energy transfer from foot to ball during impact is important to attain a high ball velocity. It is considered impact efficiency can be increased by reducing the change in ankle plantarflexion during foot-ball impact. However, conflicting evidence exists, questioning its effectiveness as a coaching cue. The aim of the present study was to systematically analyse joint stiffness, foot velocity and impact location with a mechanical kicking machine to determine if change in ankle plantarflexion during foot-ball impact and ball velocity are influenced...
May 22, 2018: Sports Biomechanics
https://www.readbyqxmd.com/read/29782309/in-memoriam-assistant-professor-kre%C3%A5-imir-kostovi%C3%A4-md-phd-16-october-1969-15-october-2017
#5
Branka Marinović
On a Sunday afternoon almost six months ago, we were deeply moved by the news that our Krešimir is no longer with us. The sad news spread from Sarajevo with the speed only most horrible and saddest news can achieve. And everybody who was reached by these news wondered whether it was possible and whether it was true. Because our professor Kostović left us a day before his 48th birthday. Krešimir Kostović was born on the 16th October 1969 in Zagreb, where he completed primary and secondary education. He enrolled at the University of Zagreb School of Medicine in 1988, and got his medical degree in 1995...
April 2018: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/29780842/the-nfl-s-chop-block-rule-change-does-it-prevent-knee-injuries-in-defensive-players
#6
Hayden P Baker, Antonios Varelas, Kevin Shi, Michael A Terry, Vehniah K Tjong
Background: The chop block, a football maneuver in which an offensive player blocks an opponent around the thigh while another offensive player engages the same opponent above the waist, was declared illegal by the National Football League (NFL) before the 2016-2017 season. Chop blocks have been hypothesized to be associated with medial collateral ligament and anterior cruciate ligament injury, especially in offensive/defensive linemen. Purpose: To quantify the impact that the chop-block rule change had on the incidence of knee injuries to defensive players in the NFL over 4 seasons (2014-2018)...
April 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29780836/defining-platelet-rich-plasma-usage-by-team-physicians-in-elite-athletes
#7
David E Kantrowitz, Ajay S Padaki, Christopher S Ahmad, T Sean Lynch
Background: The indications for the use of platelet-rich plasma (PRP) are vaguely defined despite the frequency of its use as a treatment for athletes. While select studies have advocated for its efficacy, the majority of orthopaedic research conducted on the topic has been equivocal. Purpose: To define the use of PRP in elite athletes by team physicians from professional sports leagues. Study Design: Cross-sectional study. Methods: A survey assessing treatment timing, usage patterns, indications, and complications was generated by fellowship-trained sports medicine orthopaedic surgeons...
April 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29779184/limbic-system-structure-volumes-and-associated-neurocognitive-functioning-in-former-nfl-players
#8
Christian Lepage, Marc Muehlmann, Yorghos Tripodis, Jakob Hufschmidt, Julie Stamm, Katie Green, Pawel Wrobel, Vivian Schultz, Isabelle Weir, Michael L Alosco, Christine M Baugh, Nathan G Fritts, Brett M Martin, Christine Chaisson, Michael J Coleman, Alexander P Lin, Ofer Pasternak, Nikos Makris, Robert A Stern, Martha E Shenton, Inga K Koerte
Chronic traumatic encephalopathy (CTE) is a neurodegenerative disease associated with exposure to repetitive head impacts. CTE has been linked to disruptions in cognition, mood, and behavior. Unfortunately, the diagnosis of CTE can only be made post-mortem. Neuropathological evidence suggests limbic structures may provide an opportunity to characterize CTE in the living. Using 3 T magnetic resonance imaging, we compared select limbic brain regional volumes - the amygdala, hippocampus, and cingulate gyrus - between symptomatic former National Football League (NFL) players (n = 86) and controls (n = 22)...
May 19, 2018: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/29776480/concussion-symptom-prevalence-severity-and-trajectory-implications-for-nursing-practice
#9
Gail Macartney, Valérie Simoncic, Kristian Goulet, Mary Aglipay
PURPOSE: The purpose of this study was to describe the symptom severity and trajectory in concussed children who were followed during a one year period at a concussion clinic. DESIGN AND METHODS: A retrospective chart review was completed to describe the symptom trajectory up to three months during the recovery. RESULTS: One hundred and thirty-six patients were included (74 female, 62 male) with a median age of 15.4years (range 13-17). The most common mechanisms of injury included: falls (19...
May 2018: Journal of Pediatric Nursing
https://www.readbyqxmd.com/read/29768026/return-to-play-and-performance-outcomes-of-professional-athletes-in-north-america-after-hip-arthroscopy-from-1999-to-2016
#10
Michael S Schallmo, Thomas H Fitzpatrick, Hunter B Yancey, Alejandro Marquez-Lara, T David Luo, Allston J Stubbs
BACKGROUND: The effect of hip arthroscopy on athletic performance compared with preinjury levels for professional athletes in different sports remains unknown. In addition, while return rates have been reported for professional baseball, football, and hockey players, return rates have not been reported for professional basketball players. HYPOTHESIS: Professional athletes in 4 major North American sports would be able to return to their sport and preoperative level of performance at a high rate after arthroscopic hip surgery...
May 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29765700/study-of-the-measurement-and-predictive-validity-of-the-functional-movement-screen
#11
Fraser Philp, Dimitra Blana, Edward K Chadwick, Caroline Stewart, Claire Stapleton, Kim Major, Anand D Pandyan
Objective: The aim of the study was to evaluate the reported measurement capabilities and predictive validity of the Functional Movement Screen (FMS) for injury. Methods: This was a prospective observational longitudinal study of 24 male footballers from a single team in England, alongside analysis of an existing database over one season (September 2015-May 2016). A preseason FMS was carried out with scores recorded by an experienced assessor and derived, retrospectively, from the three-dimensional movement data that were simultaneously captured...
2018: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/29764846/non-operative-management-of-an-isolated-lateral-collateral-ligament-injury-in-an-adolescent-patient-and-review-of-the-literature
#12
Dominic Davenport, Ajay Arora, Max R Edwards
We present a rare case of isolated traumatic pure ligamentous rupture of the lateral collateral ligament of the knee in an adolescent high-level footballer managed non-operatively with a good functional outcome and return to sport in 4 months.
May 15, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29764731/how-much-is-enough-in-rehabilitation-high-running-workloads-following-lower-limb-muscle-injury-delay-return-to-play-but-protect-against-subsequent-injury
#13
Jordan Stares, Brian Dawson, Peter Peeling, Michael Drew, Jarryd Heasman, Brent Rogalski, Marcus Colby
OBJECTIVES: Examine the influence of rehabilitation training loads on return to play (RTP) time and subsequent injury in elite Australian footballers. DESIGN: Prospective cohort study. METHODS: Internal (sessional rating of perceived exertion: sRPE) and external (distance, sprint distance) workload and lower limb non-contact muscle injury data was collected from 58 players over 5 seasons. Rehabilitation periods were analysed for running workloads and time spent in 3 rehabilitation stages (1: off-legs training, 2: non-football running, 3: group football training) was calculated...
April 10, 2018: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29761235/characteristics-of-sports-and-recreation-related-emergency-department-visits-among-school-age-children-and-youth-in-north-carolina-2010-2014
#14
Katherine J Harmon, Scott K Proescholdbell, Johna Register-Mihalik, David B Richardson, Anna E Waller, Stephen W Marshall
BACKGROUND: Sports and recreational activities are an important cause of injury among children and youth, with sports-related traumatic brain injuries (TBIs) being of particular concern given the developing brain. This paper reports the characteristics of sport and recreation-related (SR) emergency department (ED) visits among school-age children and youth in a statewide population. METHODS: This study included all injury-related visits made to all North Carolina 24/7 acute-care civilian hospital-affiliated EDs by school-age youth, 5-18 years of age, during 2010-2014 (N = 918,662)...
May 15, 2018: Injury Epidemiology
https://www.readbyqxmd.com/read/29758507/recovery-practices-in-division-1-collegiate-athletes-in-north-america
#15
Andrew Murray, Hugh Fullagar, Anthony P Turner, John Sproule
OBJECTIVES: Establish current practice and attitudes towards recovery in a group of Division-1 Collegiate athletes from North America. DESIGN: A 16-item questionnaire was administered via custom software in an electronic format. PARTICIPANTS: 152 student athletes from a Division-1 Collegiate school across 3 sports (Basketball, American Football, Soccer). MAIN OUTCOME MEASURES: The approaches and attitudes to recovery in both training and competition...
May 8, 2018: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29752736/chronic-traumatic-encephalopathy-and-age-of-first-exposure-to-american-style-football
#16
Alvaro Pascual-Leone, Ross D Zafonte
No abstract text is available yet for this article.
May 11, 2018: Annals of Neurology
https://www.readbyqxmd.com/read/29752704/university-sports-rivalries-provide-insights-on-coalitional-psychology-territorial-context-influences-reactions-to-vocal-signals-of-allegiance
#17
Daniel J Kruger, Michael Falbo, Sophie Blanchard, Ethan Cole, Camille Gazoul, Noreen Nader, Shannon Murphy
Sports are an excellent venue for demonstrating evolutionary principles to audiences not familiar with academic research. Team sports and sports fandom feature dynamics of in-group loyalty and intergroup competition, influenced by our evolved coalitional psychology. We predicted that reactions to expressions signaling mutual team/group allegiance would vary as a function of the territorial context. Reactions should become more prevalent, positive, and enthusiastic as one moves from the home territory to a contested area, and from a contested area to a rival's territory during active rival engagement...
May 11, 2018: Human Nature: An Interdisciplinary Biosocial Perspective
https://www.readbyqxmd.com/read/29752435/author-correction-towards-an-arthritis-flare-responsive-drug-delivery-system
#18
Nitin Joshi, Jing Yan, Seth Levy, Sachin Bhagchandani, Kai V Slaughter, Nicholas E Sherman, Julian Amirault, Yufeng Wang, Logan Riegel, Xueyin He, Tan Shi Rui, Michael Valic, Praveen K Vemula, Oscar R Miranda, Oren Levy, Ellen M Gravallese, Antonios O Aliprantis, Joerg Ermann, Jeffrey M Karp
In the original version of this Article, financial support was not fully acknowledged. The PDF and HTML versions of the Article have now been corrected to include support from the National Football League Players Association.
May 11, 2018: Nature Communications
https://www.readbyqxmd.com/read/29752207/a-cross-sport-comparison-of-performance-based-outcomes-of-professional-athletes-following-primary-microfracture-of-the-knee
#19
Michael S Schallmo, Sameer K Singh, Kathryn A Barth, Ryan D Freshman, Harry T Mai, Wellington K Hsu
BACKGROUND: The purpose of this study was to compare performance-based outcomes among professional athletes in four major North American sports following microfracture to treat symptomatic chondral defects of the knee. METHODS: Major League Baseball (MLB), National Basketball Association (NBA), National Football League (NFL), and National Hockey League (NHL) athletes who underwent primary unilateral microfracture of the knee were identified through a previously reported protocol based on public sources...
May 8, 2018: Knee
https://www.readbyqxmd.com/read/29746384/maximum-movement-workloads-and-high-intensity-workload-demands-by-position-in-ncaa-division-i-collegiate-football
#20
Gabriel J Sanders, Brad Roll, Corey A Peacock, Roger O Kollock
Sanders, GJ, Roll, B, Peacock, CA, and Kollock, RO. Maximum movement workloads and high-intensity workload demands by position in NCAA division I collegiate football. J Strength Cond Res XX(X): 000-000, 2018-The purpose of the study was to quantify the average and maximum (i.e., peak) movement workloads, and the percent of those workloads performed at high intensity by NCAA division I football athletes during competitive games. Using global positioning system devices (Catapult Sports), low, moderate, and high and total multidirectional movement workloads were quantified by each position...
May 2, 2018: Journal of Strength and Conditioning Research
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