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Sports Health

Bruno Follmer, Rodolfo Andre Dellagrana, E Paul Zehr
BACKGROUND: Brain injury arising from head trauma is a major concern in mixed martial arts (MMA) because knockout (KO) and technical knockout (TKO) are frequent fight outcomes. Previous studies have shown a high incidence of matches ending due to strikes to the head but did not consider weight categories and female fights. This study aimed at analyzing match stoppages in MMA and the exposure to head trauma distinguished by sex and weight categories. HYPOTHESIS: The heavier the weight class, the greater the risk and incidence of head trauma will be, regardless of sex...
February 15, 2019: Sports Health
Mitchell C Tarka, Annabelle Davey, Geordie C Lonza, Casey M O'Brien, John P Delaney, Nathan K Endres
CONTEXT: This article reviews the epidemiology of alpine ski racing-related injuries, risk factors, mechanisms of injury, and injury prevention strategies. EVIDENCE ACQUISITION: Pertinent literature from peer-reviewed publications from 1976 through 2018. STUDY DESIGN: Clinical review. LEVEL OF EVIDENCE: Level 5. RESULTS: The rate of injury in alpine ski racing is high. In general, knee injuries are the most common, with anterior cruciate ligament (ACL) disruptions being the most significant in terms of time loss from sport...
January 28, 2019: Sports Health
Annette Y Karim, Caleb Ashmore, Sara Burris, Toni Roddey, Alexis Ortiz, Sharon Olson
BACKGROUND: Prior studies have examined muscle power via the countermovement jump (CMJ). Studies to date have examined neither the reliability nor the construct validity of the ballet first position CMJ (hips in lateral rotation, toes facing away from one another, legs straight) as a measure of power. HYPOTHESES: There would be (1) good interrater reliability in the visual assessment of the best-quality first position CMJ (κ ≥ 0.60), (2) good test-retest reliability in the height of the first position CMJ of good quality (intraclass correlation coefficient [ICC] ≥ 0...
January 24, 2019: Sports Health
Eric D Nussbaum, Jaynie Bjornaraa, Charles J Gatt
BACKGROUND: Bony stress injuries (BSIs) are common among adolescents involved in high school sports. A better understanding of factors that contribute to adolescent BSI is needed to target preventative measures. HYPOTHESIS: Individuals who suffer a BSI will demonstrate significant differences in training methods, sleep, diet, and history of injury compared with a healthy, noninjured control group. STUDY DESIGN: Descriptive epidemiologic study...
January 15, 2019: Sports Health
Caroline Lisee, Adam S Lepley, Thomas Birchmeier, Kaitlin O'Hagan, Christopher Kuenze
CONTEXT: Quadriceps function is a significant contributor to knee joint health that is influenced by central and peripheral factors, especially after anterior cruciate ligament reconstruction (ACLR). OBJECTIVE: To assess differences of unilateral quadriceps isometric strength and activation between the involved limb and contralateral limb of individuals with ACLR and healthy controls. DATA SOURCES: Web of Science, SportDISCUS, PubMed, CINAHL, and the Cochrane Database were all used during the search...
January 14, 2019: Sports Health
Eric N Bowman, Rami Elshaar, Heather Milligan, Gregory Jue, Karen Mohr, Patty Brown, Drew M Watanabe, Orr Limpisvasti
BACKGROUND: Blood flow restriction (BFR) training involves low-weight exercises performed under vascular occlusion via an inflatable cuff. For patients who cannot tolerate high-load exercises, BFR training reportedly provides the benefits of high-load regimens, with the advantage of less tissue and joint stress. HYPOTHESIS: Low-load BFR training is safe and efficacious for strengthening muscle groups proximal, distal, and contralateral to tourniquet placement in the lower extremities...
January 14, 2019: Sports Health
Alberto Grassi, James R Bailey, Giuseppe Filardo, Kristian Samuelsson, Stefano Zaffagnini, Annunziato Amendola
CONTEXT: Meniscal injuries are common among both sport- and non-sport-related injuries, with over 1.7 million meniscal surgeries performed worldwide every year. As meniscal surgeries become more common, so does meniscal allograft transplantation (MAT). However, little is known about the outcomes of MAT in active patients who desire to go back to preinjury activities. OBJECTIVE: The purpose of this systematic review and meta-analysis was to evaluate return to sport, clinical outcome, and complications after MAT in sport-active patients...
January 14, 2019: Sports Health
Iver Cristi-Sánchez, Claudia Danes-Daetz, Alejandro Neira, Wilson Ferrada, Roberto Yáñez Díaz, Rony Silvestre Aguirre
BACKGROUND: Tendon overuse injuries are an issue in elite footballers (soccer players) and may affect tendon function. Achilles and patellar tendinopathy are the most frequent pathologies. Tendon stiffness, the relationship between the force applied to a tendon and the displacement exerted, may help represent tendon function. Stiffness is affected by training and pathology. Nevertheless, information regarding this mechanical property is lacking for elite soccer athletes. HYPOTHESIS: Achilles and patellar tendon stiffness assessed using myotonometric measurements will be greater in elite soccer athletes than in control participants...
January 2, 2019: Sports Health
Seline Y Vancolen, Ibrahim Nadeem, Nolan S Horner, Herman Johal, Bashar Alolabi, Moin Khan
CONTEXT: Ankle syndesmotic injuries present a significant challenge for athletes due to prolonged disability and recovery periods. The optimal management of these injuries and rates of return to sport in athletes remains unclear. OBJECTIVE: The purpose of this study was to evaluate return to sport for athletes after ankle syndesmotic injuries. DATA SOURCE: The electronic databases MEDLINE, EMBASE, and PubMed were searched for relevant studies from database inception to January 15, 2017, and pertinent data were abstracted...
December 14, 2018: Sports Health
James Yu, Cindy Zhang, Nolan Horner, Olufemi R Ayeni, Timothy Leroux, Bashar Alolabi, Moin Khan
CONTEXT: Pectoralis major tendon ruptures are becoming increasingly common due to the growing prevalence of active lifestyles. Studies investigating the efficacy of pectoralis major tendon repair have limited sample sizes and offer mixed results, while existing reviews do not explore postoperative activity outcomes for patients. OBJECTIVE: To summarize and synthesize the clinical outcomes and rate of return to activity after isolated pectoralis major tendon repair...
December 13, 2018: Sports Health
Donald Kasitinon, Robert J Dimeff
A 26-year-old, right-handed male professional hockey player presented for a second opinion with dysesthesia of the tips of his right third, fourth, and fifth fingers after 2 previous incidents of hyperextension injuries to his right wrist while holding his hockey stick. Radiographs and computed tomography scans were negative for fracture. After magnetic resonance angiography and Doppler ultrasound imaging, the athlete was diagnosed with hypothenar hammer syndrome (HHS) with ulnar artery aneurysm and thrombosis...
November 29, 2018: Sports Health
Sue Barber-Westin, Frank R Noyes
CONTEXT: Blood flow-restricted training (BFRT) has been suggested to treat lower extremity muscle weakness. The efficacy of BFRT for muscle problems related to knee pathology is unclear. OBJECTIVE: To determine whether BFRT (1) improves muscle strength and cross-sectional area (CSA) for chronic knee-related lower extremity atrophy and (2) prevents muscle atrophy after knee surgery. DATA SOURCES: A systematic review of the literature from 1974 to 2017 was conducted using the PubMed and Cochrane databases...
November 26, 2018: Sports Health
Annabelle Davey, Nathan K Endres, Robert J Johnson, Jasper E Shealy
CONTEXT: Alpine skiing is a popular sport worldwide but has significant risk for injury. The epidemiology of skiing-related injuries has been described, which has led to the identification of risk factors for specific types of injuries. EVIDENCE ACQUISITION: Pertinent literature from peer-reviewed publications was reviewed. STUDY DESIGN: Clinical review. LEVEL OF EVIDENCE: Level 5. RESULTS: The adoption of international standards for ski-boot-binding systems has changed the profile of skiing-related injuries over time, as has the widespread use of helmets...
January 2019: Sports Health
Edward M Wojtys
No abstract text is available yet for this article.
January 2019: Sports Health
(no author information available yet)
No abstract text is available yet for this article.
January 2019: Sports Health
David A Krause, Kelsey A Hansen, Matthew J Hastreiter, Taylor N Kuhn, Molly L Peichel, John H Hollman
BACKGROUND: Cervical muscle strength, proposed as a modifiable risk factor in concussions, can be assessed using various methods. The purpose of this study was to compare the reliability and force outputs of 3 methods that use handheld dynamometry (HHD) for assessing cervical muscle strength. HYPOTHESIS: All 3 testing methods are reliable, and force outputs are significantly different between methods. STUDY DESIGN: Repeated-measures reliability...
November 20, 2018: Sports Health
Thomas Hill, John Orchard, Alex Kountouris
BACKGROUND: Concussion in sport is a topic of growing interest in Australia and worldwide. To date, relatively few studies have examined the true incidence of concussion in cricket. HYPOTHESIS: Concussion in cricket is more common than current literature suggests. STUDY DESIGN: Descriptive epidemiology study. LEVEL OF EVIDENCE: Level 4. METHODS: This is a prospective registry and subsequent analysis of head impacts and concussions in elite-level male and female cricketers in Australia over 2 seasons (2015-2016 and 2016-2017)...
November 16, 2018: Sports Health
Jennifer L Hunnicutt, Brittany N Hand, Chris M Gregory, Harris S Slone, Michelle M McLeod, Brian Pietrosimone, Christopher Kuenze, Craig A Velozo
BACKGROUND: Measurement properties of the short form of the Knee injury and Osteoarthritis Outcome Score (KOOS-JR) are not established in individuals after anterior cruciate ligament reconstruction (ACLR). The purpose of this study was to determine the extent to which the KOOS-JR measures the construct of knee health in individuals post-ACLR using Rasch analysis. HYPOTHESIS: The KOOS-JR will fit the Rasch model, but significant ceiling effects will be present. STUDY DESIGN: Cross-sectional study...
November 16, 2018: Sports Health
Mackenzie M Herzog, Stephen W Marshall, Jennifer L Lund, Virginia Pate, Christina D Mack, Jeffrey T Spang
BACKGROUND: Few population-based descriptive studies on the incidence of anterior cruciate ligament (ACL) reconstruction and concomitant pathology exist. HYPOTHESIS: Incidence of ACL reconstruction has increased from 2002 to 2014. STUDY DESIGN: Descriptive clinical epidemiology study. LEVEL OF EVIDENCE: Level 3. METHODS: The Truven Health Analytics MarketScan Commercial Claims and Encounters database, which contains insurance enrollment and health care utilization data for approximately 158 million privately insured individuals younger than 65 years, was used to obtain records of ACL reconstructions performed between 2002 and 2014 and any concomitant pathology using Current Procedures Terminology (CPT) and International Classification of Diseases, Ninth Revision (ICD-9) codes...
November 2018: Sports Health
George J Davies
No abstract text is available yet for this article.
November 2018: Sports Health
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