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Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine

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https://www.readbyqxmd.com/read/28407652/smartphone-enabled-heart-rate-variability-and-acute-mountain-sickness
#1
Adrian Mellor, Josh Bakker-Dyos, John OʼHara, David Richard Woods, David A Holdsworth, Christopher J Boos
INTRODUCTION: The autonomic system and sympathetic activation appears integral in the pathogenesis of acute mountain sickness (AMS) at high altitude (HA), yet a link between heart rate variability (HRV) and AMS has not been convincingly shown. In this study we investigated the utility of the smartphone-derived HRV score to predict and diagnose AMS at HA. METHODS: Twenty-one healthy adults were investigated at baseline at 1400 m and over 10 days during a trek to 5140 m...
April 12, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28151759/patellar-tendinopathy-and-potential-risk-factors-an-international-database-of-cases-and-controls
#2
Sarah Morton, Sean Williams, Xavier Valle, David Diaz-Cueli, Peter Malliaras, Dylan Morrissey
OBJECTIVES: Numerous risk factors have been identified for patellar tendinopathy (PT), often in small population studies. The aim was to use an international online questionnaire to generate a large database and identify significant risk factors. DESIGN: Case-control study. SETTING: Private practice and sporting teams recruited from England, Spain, and Italy with the questionnaire available in all 3 languages (equivalence between online and self-administration shown previously)...
February 1, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/27379660/sex-differences-in-vestibular-ocular-and-neurocognitive-outcomes-after-sport-related-concussion
#3
Alicia M Sufrinko, Anne Mucha, Tracey Covassin, Greg Marchetti, R J Elbin, Michael W Collins, Anthony P Kontos
OBJECTIVE: To examine sex differences in vestibular and oculomotor symptoms and impairment in athletes with sport-related concussion (SRC). The secondary purpose was to replicate previously reported sex differences in total concussion symptoms, and performance on neurocognitive and balance testing. DESIGN: Prospective cross-sectional study of consecutively enrolled clinic patients within 21 days of a SRC. SETTING: Specialty Concussion Clinic...
March 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/27347860/current-trends-in-the-management-of-lateral-ankle-sprain-in-the-united-states
#4
Mark A Feger, Neal R Glaviano, Luke Donovan, Joseph M Hart, Susan A Saliba, Joseph S Park, Jay Hertel
OBJECTIVE: To characterize trends in the acute management (within 30 days) after lateral ankle sprain (LAS) in the United States. DESIGN: Descriptive epidemiology study. PATIENTS: Of note, 825 718 ankle sprain patients were identified; 96.2% were patients with LAS. Seven percent had an associated fracture and were excluded from the remaining analysis. SETTING: Primary and tertiary care settings. INTERVENTIONS: We queried a database of national health insurance records for 2007 to 2011 by ICD-9 codes for patients with LAS while excluding medial and syndesmotic sprains and any LAS with an associated foot or ankle fracture...
March 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/26886801/performance-on-the-functional-movement-screen-is-related-to-hop-performance-but-not-to-hip-and-knee-strength-in-collegiate-football-players
#5
Nienke Willigenburg, Timothy E Hewett
OBJECTIVE: To define the relationship between Functional Movement Screen (FMS) scores and hop performance, hip strength, and knee strength in collegiate football players. DESIGN: Cross-sectional cohort. PARTICIPANTS: Freshmen of a Division I collegiate American football team (n = 59). MAIN OUTCOME MEASURES: The athletes performed the FMS, and also a variety of hop tests, isokinetic knee strength, and isometric hip strength tasks...
March 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/26867204/googling-concussion-care-a-critical-appraisal-of-online-concussion-healthcare-providers-and-practices-in-canada
#6
Michael J Ellis, Lesley Ritchie, Erin Selci, Stephanie Chu, Patrick McDonald, Kelly Russell
BACKGROUND: Concussion is an emerging public health concern, but care of patients with a concussion is presently unregulated in Canada. METHODS: Independent, blinded Google Internet searches were conducted for the terms "concussion" and "concussion clinic" and each of the Canadian provinces and territories. The first 10 to 15 concussion healthcare providers per province were identified. A critical appraisal of healthcare personnel and services offered on the provider's Web site was conducted...
March 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28114247/neuroendocrine-dysfunction-in-a-young-athlete-with-concussion-a-case-report
#7
David M Langelier, Gregory A Kline, Chantel T Debert
An 18-year-old female ringette and basketball player presented to our sport concussion clinic 27 months after concussion with fatigue, headache, exercise intolerance, polyuria, nocturia, and difficulties concentrating. Her history was remarkable for 4 previous concussions. Her neurologic examination was normal. Neuroendocrine screen including thyroid function, morning cortisol, glucose, and insulin-like growth factor-1 (screening test for growth hormone deficiency) were normal. Further testing for growth hormone deficiency with an insulin hypoglycemia test revealed severe growth hormone deficiency...
January 20, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28107216/analysis-of-central-and-peripheral-vision-reaction-times-in-patients-with-postconcussion-visual-dysfunction
#8
Joseph F Clark, James K Ellis, Timothy M Burns, John M Childress, Jon G Divine
OBJECTIVE: To determine whether central and peripheral vision reaction times (PVRTs) are prolonged in patients with visual dysfunction after sustaining a concussion. DESIGN: Comparison of Dynavision D2 central and PVRTs in patients with postconcussion visual dysfunction were compared with control data from a normative patient database. Concussion patients without visual dysfunction were not included in this study. SETTING: National Collegiate Athletic Association Division 1 college training room and university based, academic health center...
January 19, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28107220/treatment-of-primary-acute-patellar-dislocation-systematic-review-and-quantitative-synthesis-of-the-literature
#9
Umile Giuseppe Longo, Mauro Ciuffreda, Joel Locher, Alessandra Berton, Giuseppe Salvatore, Vincenzo Denaro
PURPOSE: The aim of this study was to evaluate clinical outcomes, rate of redislocation, and complications after conservative or surgical procedures used to treat primary acute patellar dislocation. METHODS: A comprehensive search of PubMed, Medline, CINAHL, Cochrane, Embase, and Google Scholar databases using various combinations of the keywords "patella," "dislocation," "treatment," "acute," "primary" was performed. The following data were extracted: demographics, chondral defects and soft tissue lesions, outcome measurements, type of management, recurrence of instability, and complications...
January 17, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28107219/do-neurocognitive-scat3-baseline-test-scores-differ-between-footballers-soccer-living-with-and-without-disability-a-cross-sectional-study
#10
Richard Weiler, Willem van Mechelen, Colin Fuller, Osman Hassan Ahmed, Evert Verhagen
OBJECTIVE: To determine if baseline Sport Concussion Assessment Tool, third Edition (SCAT3) scores differ between athletes with and without disability. DESIGN: Cross-sectional comparison of preseason baseline SCAT3 scores for a range of England international footballers. SETTING: Team doctors and physiotherapists supporting England football teams recorded players' SCAT 3 baseline tests from August 1, 2013 to July 31, 2014. PARTICIPANTS: A convenience sample of 249 England footballers, of whom 185 were players without disability (male: 119; female: 66) and 64 were players with disability (male learning disability: 17; male cerebral palsy: 28; male blind: 10; female deaf: 9)...
January 17, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28107218/depression-anxiety-and-alcohol-use-in-elite-rugby-league-players-over-a-competitive-season
#11
Etienne J Du Preez, Kenneth S Graham, Thomas Y Gan, Bassam Moses, Chris Ball, Donald E Kuah
OBJECTIVE: To assess the prevalence of symptoms of depression, anxiety, and rates of alcohol misuse in elite rugby league players in Australasia. DESIGN: A cross-sectional, epidemiological study with repeated measures. SETTING: Surveys were conducted during the 2015 preseason and in-season. PARTICIPANTS: Four hundred four elite rugby league players participated preseason and 278 players in-season. MAIN OUTCOME MEASURES: Symptoms of depression were measured using the Patient Health Questionnaire-9 scale, symptoms of generalized anxiety disorder (GAD) with the GAD-7 scale, and the Alcohol Use Disorders Identification Test Consumption scale was used to assess hazardous alcohol use...
January 17, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28107217/reliability-and-validity-of-athletes-disability-index-questionnaire
#12
Pardis Noormohammadpour, Alireza Hosseini Khezri, Farzin Farahbakhsh, Mohammad Ali Mansournia, Matthew Smuck, Ramin Kordi
OBJECTIVE: The purpose of this study was to evaluate validity and reliability of a new proposed questionnaire for assessment of functional disability in athletes with low back pain (LBP). DESIGN: Validity and reliability study. SETTING: Elite athletes participating in different fields of sports. PARTICIPANTS: Participants were 165 male and female athletes (between 12 and 50 years old) with LBP. INTERVENTIONS: Athlete Disability Index (ADI) Questionnaire which is developed by the authors for assessing LBP-related disability in athletes, Oswestry Disability Index (ODI), and the Roland-Morris Disability Questionnaire (RDQ)...
January 17, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28085687/length-of-recovery-from-sports-related-concussions-in-pediatric-patients-treated-at-concussion-clinics
#13
Donald J Thomas, Kathryn Coxe, Hongmei Li, Thomas L Pommering, Julie A Young, Gary A Smith, Jingzhen Yang
OBJECTIVES: We quantified the length of recovery time by week in a cohort of pediatric sports-related concussion patients treated at concussion clinics, and examined patient and injury characteristics associated with prolonged recovery. DESIGN: A retrospective, cohort design. SETTING: Seven concussion clinics at a Midwest children's hospital. PATIENTS: Patients aged 10 to 17 years with a diagnosed sports-related concussion presenting to the clinic within 30 days of injury...
January 12, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28079758/concussion-in-ice-hockey-current-gaps-and-future-directions-in-an-objective-diagnosis
#14
Aynsley M Smith, Michael J Stuart, William O Roberts, David W Dodick, Jonathan T Finnoff, Janelle K Jorgensen, David A Krause
OBJECTIVE: This review provides an update on sport-related concussion (SRC) in ice hockey and makes a case for changes in clinical concussion evaluation. Standard practice should require that concussions be objectively diagnosed and provide quantitative measures of the concussion injury that will serve as a platform for future evidence-based treatment. METHODS: The literature was surveyed to address several concussion-related topics: research in ice hockey-related head trauma, current subjective diagnosis, promising components of an objective diagnosis, and current and potential treatments...
January 10, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28005561/risk-factors-for-collegiate-swimmers-hospitalized-with-exertional-rhabdomyolysis
#15
Margo R Stanfa, Navjeet N Silles, Amanda Cooper, Sara Arena, Kristin Landis-Piwowar, Carrie Aprik, Tamara Hew-Butler
OBJECTIVE: To identify midseason risk factors for symptomatic exertional rhabdomyolysis (sER) in swimmers after a novel upper body workout. DESIGN: Retrospective (1) survey and (2) analyses of observational laboratory data conducted over a 16-week training period, 2 months before sER. SETTING: Midwest University. PARTICIPANTS: Thirty-four collegiate swimmers. INDEPENDENT VARIABLES: (1) Motivation, symptoms, and supplements for survey variables...
January 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/27347869/aggregatibacter-aphrophilus-sacroiliitis-following-gastroscopy-in-a-young-sportsman
#16
Shelanah A Fernando, Thomas Gottlieb
We report a case of Aggregatibacter aphrophilus sacroiliitis in a young sportsman, presenting 48 hours after endoscopy and biopsy. Microbiological diagnosis was made only after repeated attempt at joint aspiration. The patient was cured after radiologically guided drainage and a prolonged course of directed antibiotics.
January 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/27116592/use-of-head-guards-in-aiba-boxing-tournaments-a-cross-sectional-observational-study
#17
Michael P Loosemore, Charles F Butler, Abdelhamid Khadri, David McDonagh, Vimal A Patel, Julian E Bailes
OBJECTIVE: This study looks at the changes in injuries after the implementation of a new rule by the International Boxing Association (AIBA) to remove head guards from its competitions. DESIGN: A cross-sectional observational study performed prospectively. This brief report examines the removal of head guards in 2 different ways. The first was to examine the stoppages due to blows to the head by comparing World Series Boxing (WSB), without head guards, to other AIBA competitions with head guards...
January 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/27014942/development-of-a-chest-wall-protector-effective-in-preventing-sudden-cardiac-death-by-chest-wall-impact-commotio-cordis
#18
Kartik Kumar, Swati N Mandleywala, Michael P Gannon, Nathan Anthony Mark Estes, Jonathan Weinstock, Mark S Link
OBJECTIVE: Commotio cordis, sudden death with chest impact, occurs clinically despite chest wall protectors worn in sports. In an experimental model of commotio cordis, commercially available chest wall protectors failed to prevent ventricular fibrillation (VF). The goal of the current investigation was to develop a chest wall protector effective in the prevention of commotio cordis. DESIGN: In the Tufts experimental model of commotio cordis the ability of chest protectors to prevent VF was assessed...
January 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/26945309/injury-risk-is-increased-by-changes-in-perceived-recovery-of-team-sport-players
#19
Henrike Teunisje Dorothé van der Does, Michel Sanne Brink, Ruby Tina Ardi Otter, Chris Visscher, Koen Alfons Plechelmus Marie Lemmink
OBJECTIVE: The aim of this study is to investigate if changes in perceived stress and recovery over the course of a season are risk factors for acute and overuse injuries. DESIGN: A prospective nonexperimental cohort design. SETTING: Data were gathered at the SportsFieldLab Groningen and at the facilities of the participating teams. PARTICIPANTS: Eighty-six male and female basketball, volleyball, and korfball players aged 21...
January 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/26882107/can-kaatsu-exercise-cause-rhabdomyolysis
#20
Brian C Clark, Todd M Manini
In recent years, there has been increasing interest in using low-load resistance exercise in combination with a reduction in blood flow to promote muscle adaptation (ie, blood flow-restricted exercise or KAATSU exercise). There has been 1 case study reported in the literature of this type of exercise resulting in exertional rhabdomyolysis, and herein, we report the second case of exertional rhabdomyolysis. In this case, a 20-year-old man performed 6 sets of blood flow-restricted exercise (3 sets of knee-extension and 3 sets of elbow-flexion exercise)...
January 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
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