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https://www.readbyqxmd.com/read/28449005/concussion-in-ice-hockey-a-cohort-study-across-29-seasons
#1
Mascha Pauelsen, Gusten Nyberg, Cecilia Tegner, Yelverton Tegner
OBJECTIVE: The aim of this study was to analyze the concussion incidence rate ratios across 29 seasons in a Swedish Hockey League team. DESIGN: Cohort study over 29 seasons within one Swedish elite series ice hockey team. PARTICIPANTS: All players who were part of one Swedish elite ice hockey team during the research period gave consent for participation in the study. INDEPENDENT VARIABLES: Exposure to top-level Swedish ice hockey...
May 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28438305/cardiovascular-response-to-recreational-hockey-in-middle-aged-men
#2
Zack A Goodman, Scott G Thomas, Robert C Wald, Jack M Goodman
The present study examined the hemodynamic response to recreational pick-up hockey relative to maximal exercise testing in middle-aged men. A total of 23 men with a mean age of 53 ± 7 years were studied. Graded exercise testing on a cycle ergometer determined maximal oxygen consumption, blood pressure (BP), and heart rate (HR). Ambulatory BP and Holter electrocardiographic monitoring was performed during one of their weekly hockey games (mean duration = 45 ± 7.2 minutes): for "On-Ice" responses (PLAY; data recorded while standing immediately after a shift; 8...
April 11, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28426377/development-of-the-sports-organization-concussion-risk-assessment-tool-socrat
#3
A Yeung, V Munjal, N Virji-Babul
OBJECTIVE: In this paper, we describe the development of a novel tool-the Sports Organization Concussion Risk Assessment Tool (SOCRAT)-to assist sport organizations in assessing the overall risk of concussion at a team level by identifying key risk factors. METHODS: We first conducted a literature review to identify risk factors of concussion using ice hockey as a model. We then developed an algorithm by combining the severity and the probability of occurrence of concussions of the identified risk factors by adapting a risk assessment tool commonly used in engineering applications...
2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28423285/the-epidemiology-of-high-ankle-sprains-in-national-collegiate-athletic-association-sports
#4
Timothy C Mauntel, Erik A Wikstrom, Karen G Roos, Aristarque Djoko, Thomas P Dompier, Zachary Y Kerr
BACKGROUND: Ankle sprains are among the most common injuries experienced by collegiate athletes. The type of ankle sprain is rarely differentiated in epidemiological studies. This differentiation is necessary, as each ankle sprain type has a unique injury mechanism and recovery period. High ankle sprains commonly result in long recovery periods. Thus, a further examination of the epidemiology of high ankle sprains is warranted. PURPOSE: To describe the epidemiology of high ankle sprains in National Collegiate Athletic Association (NCAA) sports during the 2009/2010-2014/2015 academic years...
April 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28421914/seeing-the-forest-but-not-the-trees-heterogeneity-in-community-size-effects-in-canadian-ice-hockey-players
#5
N Wattie, J Schorer, J Baker
The community size effect (or birthplace effect) suggests that high-performance athletes are less likely to emerge from regions with population sizes that are very small or very large. However, previous research on elite Canadian ice hockey players has not considered the influence of intra-national regional variation of population distributions with respect to community size effects. Therefore, the purpose of the current study was to test the heterogeneity of the community size effect between Canadian National Hockey League draftees (2000-2014: n = 1505), from 7 provincial regions within Canada (i...
April 19, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28415899/specific-muscle-synergies-in-national-elite-female-ice-hockey-players-in-response-to-unexpected-external-perturbation
#6
Minhee Kim, Yushin Kim, Hyeyoung Kim, BumChul Yoon
This study aimed to investigate specific muscle synergies in elite ice hockey players indicating highly developed postural control strategies used to restore balance against unexpected external perturbations. Seven elite athletes (EA) on the women's national ice hockey team and 7 non-athletes (NA) participated in this study. Based on trajectories of centre of mass (COM), analysis periods were divided into an initial phase (a balance disturbance after perturbation onset) and a reversal phase (a balance recovery response), respectively...
April 18, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28413696/prevalence-of-potential-sports-associated-risk-factors-in-swiss-amyotrophic-lateral-sclerosis-patients
#7
Nina Feddermann-Demont, Astrid Junge, Konrad P Weber, Michael Weller, Jiří Dvořák, Alexander A Tarnutzer
OBJECTIVES: Amyotrophic lateral sclerosis (ALS) has been reported to occur with increased incidence amongst physically active people. The role of extrinsic risk factors as physical activity, head trauma and drug/pesticide-exposure in the pathophysiology of ALS and especially in the context of practising sports remains controversial. MATERIALS AND METHODS: We retrospectively studied exposure to extrinsic factors in 92 ALS patients in the presymptomatic stage. Metabolic equivalents (METs) were calculated and the association of physical activity, drug intake, head trauma and participation in specific sports (football [soccer], ice hockey) with age at symptom-onset was evaluated...
April 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28404801/serum-neurofilament-light-as-a-biomarker-for-mild-traumatic-brain-injury-in-contact-sports
#8
Pashtun Shahim, Henrik Zetterberg, Yelverton Tegner, Kaj Blennow
OBJECTIVE: To evaluate whether the axonal protein neurofilament light (NFL) in serum is a sensitive biomarker to detect subtle brain injury or concussion in contact sports athletes. METHODS: Two prospective cohort studies involving (1) 14 Swedish amateur boxers who underwent fluid biomarker assessments at 7-10 days after bout and after 3 months of rest from boxing and (2) 35 Swedish professional hockey players who underwent blood biomarker assessment at 1, 12, 36, and 144 hours after concussion and when the players returned to play were performed...
April 12, 2017: Neurology
https://www.readbyqxmd.com/read/28398168/pre-game-perceived-wellness-highly-associates-with-match-running-performances-during-an-international-field-hockey-tournament
#9
Mohammed Ihsan, Frankie Tan, Sofyan Sahrom, Hui Cheng Choo, Michael Chia, Abdul Rashid Aziz
This study examined the associations between pre-game wellness and changes in match running performance normalised to either (i) playing time, (ii) post-match RPE or (iii) both playing time and post-match RPE, over the course of a field hockey tournament. Twelve male hockey players were equipped with global positioning system (GPS) units while competing in an international tournament (six matches over 9 days). The following GPS-derived variables, total distance (TD), low-intensity activity (LIA; <15 km/h), high-intensity running (HIR; >15 km/h), high-intensity accelerations (HIACC; >2 m/s(2)) and decelerations (HIDEC; >-2 m/s(2)) were acquired and normalised to either (i) playing time, (ii) post-match RPE or (iii) both playing time and post-match RPE...
June 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28397546/measuring-cognitive-change-with-impact-the-aggregate-baseline-approach
#10
Jared M Bruce, Ruben J Echemendia, Willem Meeuwisse, Michael G Hutchison, Mark Aubry, Paul Comper
OBJECTIVE: The Immediate Post-Concussion Assessment and Cognitive Test (ImPACT) is commonly used to assess baseline and post-injury cognition among athletes in North America. Despite this, several studies have questioned the reliability of ImPACT when given at intervals employed in clinical practice. Poor test-retest reliability reduces test sensitivity to cognitive decline, increasing the likelihood that concussed athletes will be returned to play prematurely. We recently showed that the reliability of ImPACT can be increased when using a new composite structure and the aggregate of two baselines to predict subsequent performance...
April 11, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28396361/cognitive-and-psychosocial-function-in-retired-professional-hockey-players
#11
Carrie Esopenko, Tiffany W Chow, Maria Carmela Tartaglia, Agnes Bacopulos, Priya Kumar, Malcolm A Binns, James L Kennedy, Daniel J Müller, Brian Levine
BACKGROUND AND OBJECTIVE: The relationship between repeated concussions and neurodegenerative disease has received significant attention, particularly research in postmortem samples. Our objective was to characterise retired professional ice hockey players' cognitive and psychosocial functioning in relation to concussion exposure and apolipoprotein ε4 status. METHODS: Alumni athletes (N=33, aged 34-71 years) and an age-matched sample of comparison participants (N=18) were administered measures of cognitive function and questionnaires concerning psychosocial and psychiatric functioning...
April 10, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28387556/long-term-cognitive-and-neuropsychiatric-consequences-of-repetitive-concussion-and-head-impact-exposure
#12
Thomas McAllister, Michael McCrea
Initially, interest in sport-related concussion arose from the premise that the study of athletes engaged in sports associated with high rates of concussion could provide insight into the mechanisms, phenomenology, and recovery from mild traumatic brain injury. Over the last decade, concerns have focused on the possibility that, for some athletes, repetitive concussions may raise the long-term risk for cognitive decline, neurobehavioral changes, and neurodegenerative disease. First conceptualized as a discrete event with variable recovery trajectories, concussion is now viewed by some as a trigger of neurobiological events that may influence neurobehavioral function over the course of the life span...
March 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28387553/head-impact-measurement-devices-a-systematic-review
#13
Kathryn L O'Connor, Steven Rowson, Stefan M Duma, Steven P Broglio
CONTEXT: With an estimated 3.8 million sport- and recreation-related concussions occurring annually, targeted prevention and diagnostic methods are needed. Biomechanical analysis of head impacts may provide quantitative information that can inform both prevention and diagnostic strategies. OBJECTIVE: To assess available head-impact devices and their clinical utility. DATA SOURCES: We performed a systematic search of the electronic database PubMed for peer-reviewed publications, using the following phrases: accelerometer and concussion, head impact telemetry, head impacts and concussion and sensor, head impacts and sensor, impact sensor and concussion, linear acceleration and concussion, rotational acceleration and concussion, and xpatch concussion...
March 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28384855/anthropometric-basis-of-vertical-jump-performance-a-study-in-young-indian-national-players
#14
Hanjabam Barun Sharma, Shalini Gandhi, Konthoujam Kosana Meitei, Jyoti Dvivedi, Sanjay Dvivedi
INTRODUCTION: Vertical Jump (VJ) is a good measure of athletic performance and occupational activities. Earlier studies reported conflicting results on anthropometric influence. AIM: To evaluate the relationship between anthropometric characteristics and VJ in national level hockey and cycling players. MATERIALS AND METHODS: Fifty four (32 males) national level hockey and cycling players of 11-21 years were the volunteers. Following standard protocols, these variables were measured: VJ, Weight (WT), Height (HT), Trochanterion-Height (TH), Sum of Skinfold Thickness (SSF), Lengths [Acromiale-Stylion (AS) and Midstylion-Dactylion (SD)], Breadths [Biacromial (AB), Biiliocristal (IB), Biepicondylar Humerus (HB) and Biepicondylar Femur (FB)], Girths [Relaxed Arm (AG), Mid Thigh (TG) and Calf (CG)], Lower Back and Hamstring Flexibility (SR), Grip [Left Hand Grip (LHG) and Right Hand Grip (RHG)] and Back Strength (BS)...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28377445/can-visible-signs-predict-concussion-diagnosis-in-the-national-hockey-league
#15
Ruben J Echemendia, Jared M Bruce, Willem Meeuwisse, Michael G Hutchison, Paul Comper, Mark Aubry
BACKGROUND: Early identification and evaluation of concussions is critical. We examined the utility of using visible signs (VS) of concussion in predicting subsequent diagnosis of concussion in NHL players. METHODS: VS of concussion were identified through video review. Coders were trained to detect and record specific visual signs while viewing videos of NHL regular season games. 2460 games were reviewed by at least two independent coders across two seasons. The reliability, sensitivity and specificity of these VS were examined...
April 4, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28377444/development-of-a-risk-prediction-model-among-professional-hockey-players-with-visible-signs-of-concussion
#16
Jared M Bruce, Ruben J Echemendia, Willem Meeuwisse, Michael G Hutchison, Mark Aubry, Paul Comper
BACKGROUND: Little research examines how to best identify concussed athletes. The purpose of the present study was to develop a preliminary risk decision model that uses visible signs (VS) and mechanisms of injury (MOI) to predict the likelihood of subsequent concussion diagnosis. METHODS: Coders viewed and documented VS and associated MOI for all NHL games over the course of the 2013-2014 and 2014-2015 regular seasons. After coding was completed, player concussions were identified from the NHL injury surveillance system and it was determined whether players exhibiting VS were subsequently diagnosed with concussions by club medical staff as a result of the coded event...
April 4, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28364613/behaviour-of-glyphosate-in-a-reservoir-and-the-surrounding-agricultural-soils
#17
C Maqueda, T Undabeytia, J Villaverde, E Morillo
Glyphosate (GPS) is an herbicide currently used on olive crops in Spain, and can be transported to the nearby reservoirs currently used for human consumption. The purpose of this work was to study the behaviour and environmental fate of GPS in water and sediments of the Vibora Reservoir, its tributary river, and the surrounding agricultural soils to assess the risk of water pollution of this reservoir. The adsorption of GPS by different matrices was as follows: heading of the reservoir sediment (Cabecera)>tail sediment (Cola)>soils>Vibora sediment...
March 29, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28360142/do-functional-movement-screen-fms-composite-scores-predict-subsequent-injury-a-systematic-review-with-meta-analysis
#18
REVIEW
Robert W Moran, Anthony G Schneiders, Jesse Mason, S John Sullivan
AIM: This paper aims to systematically review studies investigating the strength of association between FMS composite scores and subsequent risk of injury, taking into account both methodological quality and clinical and methodological diversity. DESIGN: Systematic review with meta-analysis. DATA SOURCES: A systematic search of electronic databases was conducted for the period between their inception and 3 March 2016 using PubMed, Medline, Google Scholar, Scopus, Academic Search Complete, AMED (Allied and Complementary Medicine Database), CINAHL (Cumulative Index to Nursing and Allied Health Literature), Health Source and SPORTDiscus...
March 30, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28358221/descriptive-epidemiology-of-non-time-loss-injuries-in-collegiate-and-high-school-student-athletes
#19
Zachary Y Kerr, Robert C Lynall, Karen G Roos, Sara L Dalton, Aristarque Djoko, Thomas P Dompier
CONTEXT: Research on non-time-loss (NTL) injuries, which result in less than 24 hours of restriction from participation, is limited. OBJECTIVE: To describe the epidemiology of NTL injuries among collegiate and high school student-athletes. DESIGN: Descriptive epidemiology study. SETTING: Aggregate injury and exposure data collected from a convenience sample of National College Athletic Association varsity teams and 147 high schools in 26 states...
March 30, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28355976/on-ice-return-to-hockey-progression-after-anterior-cruciate-ligament-reconstruction
#20
Jacob J Capin, William Behrns, Karen Thatcher, Amelia Arundale, Angela Hutchinson Smith, Lynn Snyder-Mackler
Synopsis Limited literature exists pertaining to rehabilitation of ice hockey players seeking to return-to-sport after anterior cruciate ligament reconstruction (ACLR). The purpose of this clinical commentary is to present a criterion-based, return-to-ice hockey progression for athletes after ACLR. First, we review pertinent literature and provide previously published guidelines on general rehabilitation after ACLR. Then, we present a four-phase, on-ice skating progression with objective criteria to initiate each phase...
March 29, 2017: Journal of Orthopaedic and Sports Physical Therapy
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