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Athlete, injury, prevention

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https://www.readbyqxmd.com/read/28735104/effect-of-limb-dominance-and-sex-on-neuromuscular-activation-patterns-in-athletes-under-12-performing-unanticipated-side-cuts
#1
Michael J Del Bel, Alana K Fairfax, Michelle L Jones, Kendal Steele, Scott C Landry
Non-contact ACL injuries are one of the most common injuries to the knee joint among adolescent/collegiate athletes, with sex and limb dominance being identified as risk factors. In children under 12years of age (U12), these injuries occur less often and there is no sex-bias present. This study set out to explore if sex and/or limb dominance differences exist in neuromuscular activations in U12 athletes. Thirty-four U12 males and females had six bilateral muscles analyzed during unanticipated side-cuts. Principal component analysis was performed, capturing differences in overall magnitudes and timing of peak magnitudes...
July 14, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28730946/contribution-of-upper-limb-muscles-to-two-different-gripping-styles-in-elite-indoor-tug-of-war-athletes
#2
Wen-Tzu Tang, Wei-Chih Liao, Hsin-Min Lee
To investigate characteristic upper limb muscle use between two common tug of war (TOW) gripping styles, 20 elite athletes from two high school TOW teams were recruited. Under conditioned attack pulling (with 90% maximal force) on a tug machine, participants used their own habitual gripping style to pull for five 15-s trials. Force and kinematic measurements showed a significantly better force performance and higher centre-of-gravity tilting angle with the gripping style one than with the gripping style two (GS2) (both p < 0...
July 21, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28723822/biomechanical-differences-in-female-basketball-and-soccer-players-during-multi-directional-jump-landings
#3
Jeffrey B Taylor, Kevin R Ford, Randy J Schmitz, Scott E Ross, Terry A Ackerman, Sandra J Shultz
Anterior cruciate ligament injury prevention programs are less successful in basketball than soccer and may be due to distinct movement strategies that these athletes develop from sport-specific training. The purpose of this study was to identify biomechanical differences between female basketball and soccer players during multi-directional jump landings. Lower extremity biomechanics of eighty-nine female athletes who played competitive basketball (n=40) or soccer (n=49) at the middle- or high-school level were analyzed with three-dimensional motion analysis during a drop vertical jump (DVJ), double- (SAG-DL) and single-leg forward jump (SAG-SL), and double- (FRONT-DL) and single-leg (FRONT-SL) lateral jump...
July 14, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28720693/catastrophic-cervical-spinal-injury-in-an-amateur-college-wrestler
#4
Jayakrishnan Kelamangalathu Narayana Kurup, Ravitheja Jampani, Simanchal P Mohanty
A young amateur wrestler presented with a burst fracture of the seventh cervical vertebra with complete paraplegia. He was treated with surgery for spine stabilisation and was actively rehabilitated. Adolescents and teenagers are indulging in high-contact sports like wrestling, without proper training and technical know-how, which can lead to severe injuries and possibly, permanent handicap or death. Trainers, assistants and institutions should be well equipped to diagnose and provide initial care of people with a spinal injury to prevent a partial injury from progressing to complete injury...
July 18, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28713458/trunk-strength-characteristics-of-elite-alpine-skiers-a-comparison-with-physically-active-controls
#5
Carolin Hildebrandt, Lisa Müller, Christian Heisse, Christian Raschner
Core muscle imbalances and weak trunk strength are relevant for injury prevention and performance. Information regarding core strength requirements and ideal flexion/extension ratios in alpine skiing is limited. We aimed to compare trunk strength capacities in elite alpine skiers with those of a matched control group. The concentric maximal trunk flexion and extension of 109 elite skiers and 47 active controls were measured at 150°/s in a ballistic mode using the CON-TREX® TP 1000 test system. The relative flexion peak torque was higher in male ski racers (p = 0...
June 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28696988/body-mass-index-as-a-predictor-of-injuries-in-athletics
#6
Adae O Amoako, Ariel Nassim, Cory Keller
The quest to identify injury risk factors in sports has been an ongoing and well-researched field in the world of sports medicine. Knowing some of these factors helps keep sports participation safe. Both intrinsic and extrinsic factors have been studied. Body mass index (BMI) is widely known to contribute to several medical conditions. Its association with some sports injuries has been established but the information is vast, with few studies that are randomized controlled trials. It is important to analyze these studies and confirm whether BMI is a predictor of lower-extremity injuries...
July 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/28696987/nutritional-supplements-for-the-treatment-and-prevention-of-sports-related-concussion-evidence-still-lacking
#7
Thomas H Trojian, David H Wang, John J Leddy
Concussions are common neurologic events that affect many athletes. Very little has been studied on the treatment of concussions with supplements and medications. The U.S. Food and Drug Administration (FDA) reminds us that no supplement has been proven to treat concussions. Many animal studies show that supplements have potential for improving the effects of a brain injury but none have been shown to be of consistent benefit in human studies. Animal studies on severe traumatic brain injury (TBI) may not therefore be applicable transfer to sports-related concussions (SRC)...
July 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/28683419/deviating-running-kinematics-and-hamstring-injury-susceptibility-in-male-soccer-players-cause-or-consequence
#8
Joke Schuermans, Damien Van Tiggelen, Tanneke Palmans, Lieven Danneels, Erik Witvrouw
BACKGROUND: Although the vast majority of hamstring injuries in male soccer are sustained during high speed running, the association between sprinting kinematics and hamstring injury vulnerability has never been investigated prospectively in a cohort at risk. PURPOSE: This study aimed to objectify the importance of lower limb and trunk kinematics during full sprint in hamstring injury susceptibility. STUDY DESIGN: Cohort study; level of evidence, 2...
June 27, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28673417/neurologic-injuries-in-noncontact-sports
#9
REVIEW
Robert J Marquardt, Andrew Blake Buletko, Andrew Neil Russman
Noncontact sports are associated with a variety of neurologic injuries. Concussion, vascular injury (arterial dissection), and spinal cord trauma may be less common in noncontact sports, but require special attention from the sports neurologist. Complex regional pain disorders, muscle injury from repetitive use, dystonia, heat exposure, and vascular disorders (patent foramen ovale), occur with similar frequency in noncontact and contact sports. Management of athletes with these conditions requires an understanding of the neurologic consequences of these disorders, the risk of injury with return to play, and consideration for the benefits of exercise in health restoration and disease prevention...
August 2017: Neurologic Clinics
https://www.readbyqxmd.com/read/28668187/experimental-validation-of-finite-element-predicted-bone-strain-in-the-human-metatarsal
#10
Anita Fung, Lindsay L Loundagin, W Brent Edwards
Metatarsal stress fracture is a common injury observed in athletes and military personnel. Mechanical fatigue is believed to play an important role in the etiology of stress fracture, which is highly dependent on the resulting bone strain from the applied load. The purpose of this study was to validate a subject-specific finite element (FE) modeling routine for bone strain prediction in the human metatarsal. Strain gauge measurements were performed on 33 metatarsals from seven human cadaveric feet subject to cantilever bending, and subject-specific FE models were generated from computed tomography images...
June 21, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28662349/injury-surveillance-of-head-neck-and-facial-injuries-in-collegiate-ice-hockey-players-2009-2010-through-2013-2014-academic-years
#11
Molly MacMhathan Simmons, David I Swedler, Zachary Y Kerr
CONTEXT:   Ice hockey is a high-speed, full-contact sport with a high risk of head/face/neck (HFN) injuries. However, men's and women's ice hockey differ; checking is allowed only among men. OBJECTIVES:   To describe the epidemiology of HFN injuries in collegiate men's and women's ice hockey during the 2009-2010 through 2013-2014 academic years. DESIGN:   Descriptive epidemiology study. SETTING:   Ice hockey data from the National Collegiate Athletic Association (NCAA) Injury Surveillance Program during the 2009-2010 through 2013-2014 academic years...
June 29, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28656531/acl-injury-prevention-what-does-research-tell-us
#12
REVIEW
Trent Nessler, Linda Denney, Justin Sampley
PURPOSE OF REVIEW: Mechanisms leading to anterior cruciate ligament (ACL) injury have been identified, yet re-injury or a secondary injury persists in the athletic population. The purpose of this review is to identify risk factors associated with ACL injury and investigate programs to prevent injury. RECENT FINDINGS: Faulty mechanics during dynamic movement that cause excessive valgus force at the knee increases the risk of ACL injury. Faulty mechanics may be a result of lateral displacement of the trunk, unequal limb loading, and lack of control to avoid the valgus knee position...
June 27, 2017: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/28653866/the-role-of-athletic-trainers-in-preventing-and-managing-posttraumatic-osteoarthritis-in-physically-active-populations-a-consensus-statement-of-the-athletic-trainers-osteoarthritis-consortium
#13
Riann M Palmieri-Smith, Kenneth L Cameron, Lindsey J DiStefano, Jeffrey B Driban, Brian Pietrosimone, Abbey C Thomas, Timothy W Tourville, Athletic Trainers' Osteoarthritis Consortium
OBJECTIVE:   To provide athletic trainers with a fundamental understanding of the pathogenesis and risk factors associated with the development of posttraumatic osteoarthritis (PTOA) as well as the best current recommendations for preventing and managing this condition. BACKGROUND:   Posttraumatic osteoarthritis, or osteoarthritis that develops secondary to joint injury, accounts for approximately 5.5 million US cases annually. A young athlete with a joint injury is at high risk for PTOA before the age of 40, which could lead to the patient living more than half of his or her life with a painful and disabling disorder...
June 2, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28652828/prevention-treatment-and-rehabilitation-of-anterior-cruciate-ligament-injuries-in-children
#14
REVIEW
Pamela J Lang, Dai Sugimoto, Lyle J Micheli
As more children and adolescents participate in competitive organized sports, there has been an increase in the reported incidence of anterior cruciate ligament (ACL) injuries in these age groups. ACL injuries in skeletally immature athletes present a challenge, as reconstruction must preserve the physis of the distal femur and of the proximal tibia to avoid growth disturbances. Historically, a skeletally immature athlete with an ACL injury was treated with a brace and activity modification until skeletal maturity, with ACL reconstruction being performed at that time in the "non-copers" who experienced instability...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/28650739/the-effect-of-high-intensity-exercise-and-anticipation-on-trunk-and-lower-limb-biomechanics-during-a-crossover-cutting-manoeuvre
#15
Enda F Whyte, Chris Richter, Siobhan O'connor, Kieran A Moran
We investigated the effects of high intensity, intermittent exercise (HIIP) and anticipation on trunk, pelvic and lower limb biomechanics during a crossover cutting manoeuvre. Twenty-eight male, varsity athletes performed crossover cutting manoeuvres in anticipated and unanticipated conditions pre- and post-HIIP. Kinematic and kinetic variables were captured using a motion analysis system. Statistical parametric mapping (repeated-measures ANOVA) was used to identify differences in biomechanical patterns. Results demonstrated that both unanticipation and fatigue (HIIP) altered the biomechanics of the crossover cutting manoeuvre, whereas no interactions effects were observed...
June 26, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28644776/eye-injuries-in-high-school-and-collegiate-athletes
#16
Barry P Boden, Lauren A Pierpoint, Rebecca G Boden, R Dawn Comstock, Zachary Y Kerr
BACKGROUND: Although eye injuries constitute a small percentage of high school and college sports injuries, they have the potential to be permanently debilitating. HYPOTHESIS: Eye injury rates will vary by sport, sex, and between the high school and college age groups. STUDY DESIGN: Descriptive epidemiology study. LEVEL OF EVIDENCE: Level 3. METHODS: Data from eye injury reports in high school and college athletes were obtained from the National High School Sports-Related Injury Surveillance System, High School Reporting Information Online (HS RIO) database over a 10-year span (2005-2006 through 2014-2015 school years) and the National Collegiate Athletic Association (NCAA) Injury Surveillance Program (ISP) over an 11-year span (2004-2005 through 2014-2015 school years)...
June 1, 2017: Sports Health
https://www.readbyqxmd.com/read/28644678/professional-athletes-return-to-play-and-performance-after-operative-repair-of-an-achilles-tendon-rupture
#17
David P Trofa, J Chance Miller, Eugene S Jang, Denzel R Woode, Justin K Greisberg, J Turner Vosseller
BACKGROUND: Most Achilles tendon ruptures are sports related. However, few studies have examined and compared the effect of surgical repair for complete ruptures on return to play (RTP), play time, and performance across multiple sports. PURPOSE: To examine RTP and performance among professional athletes after Achilles tendon repair and compare pre- versus postoperative functional outcomes of professional athletes from different major leagues in the United States...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28632053/the-effect-of-a-secondary-cognitive-task-on-landing-mechanics-and-jump-performance
#18
Boyi Dai, Ross F Cook, Elizabeth A Meyer, Yvonne Sciascia, Taylour J Hinshaw, Chaoyi Wang, Qin Zhu
Anterior cruciate ligament (ACL) injuries commonly occur during jump-landing tasks when individuals' attention is simultaneously allocated to other objects and tasks. The purpose of the current study was to investigate the effect of allocation of attention imposed by a secondary cognitive task on landing mechanics and jump performance. Thirty-eight recreational athletes performed a jump-landing task in three conditions: no counting, counting backward by 1 s from a randomly given number, and counting backward by 7 s from a randomly given number...
February 28, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28632046/targeting-associated-mechanisms-of-anterior-cruciate-ligament-injury-in-female-community-level-athletes
#19
Jonathan M D Staynor, Joanna C Nicholas, Gillian Weir, Jacqueline A Alderson, Cyril J Donnelly
This study aims to determine if biomechanically informed injury prevention training can reduce associated factors of anterior cruciate ligament injury risk among a general female athletic population. Female community-level team sport athletes, split into intervention (n = 8) and comparison groups (n = 10), completed a sidestepping movement assessment prior to and following a 9-week training period, in which kinetic, kinematic and neuromuscular data were collected. The intervention group completed a biomechanically informed training protocol, consisting of plyometric, resistance and balance exercises, adjunct to normal training, for 15-20 min twice a week...
February 24, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28622025/comparison-of-concussion-rates-between-ncaa-division-i-and-division-iii-men-s-and-women-s-ice-hockey-players
#20
John M Rosene, Bryan Raksnis, Brie Silva, Tyler Woefel, Paul S Visich, Thomas P Dompier, Zachary Y Kerr
BACKGROUND: Examinations related to divisional differences in the incidence of sports-related concussions (SRC) in collegiate ice hockey are limited. PURPOSE: To compare the epidemiologic patterns of concussion in National Collegiate Athletic Association (NCAA) ice hockey by sex and division. STUDY DESIGN: Descriptive epidemiology study. METHODS: A convenience sample of men's and women's ice hockey teams in Divisions I and III provided SRC data via the NCAA Injury Surveillance Program during the 2009-2010 to 2014-2015 academic years...
June 1, 2017: American Journal of Sports Medicine
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