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https://www.readbyqxmd.com/read/28096246/chronic-traumatic-encephalopathy-is-latency-in-symptom-onset-explained-by-tau-propagation
#1
Joshua Kriegel, Zachary Papadopoulos, Ann C McKee
Chronic traumatic encephalopathy (CTE) is a neurodegenerative tauopathy associated with repetitive mild brain trauma. CTE, previously termed "dementia pugilistica," has been identified in American football, ice hockey, baseball, rugby and soccer players, boxers, wrestlers, and military personnel exposed to blast and other traumatic brain injuries. There is often a long latency period between an individual's exposure to repetitive brain trauma and the clinical symptoms of CTE. The pathology of CTE is characterized by a progression from isolated focal perivascular hyperphosphorylated tau lesions in the cerebral cortex to a widespread tauopathy that involves diffuse cortical and medial temporal lobe regions...
January 17, 2017: Cold Spring Harbor Perspectives in Medicine
https://www.readbyqxmd.com/read/28079758/concussion-in-ice-hockey-current-gaps-and-future-directions-in-an-objective-diagnosis
#2
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/28067735/migraine-with-aura-or-sports-related-concussion-case-report-pathophysiology-and-multidisciplinary-approach-to-management
#3
Michael J Ellis, Dean Cordingley, Richard Girardin, Lesley Ritchie, Janine Johnston
The evaluation and management of athletes presenting with clinical features of migraine headache with aura in the setting of sports-related head trauma is challenging. We present a case report of a 15-yr-old boy with a history of migraine with visual aura that developed acute visual disturbance and headache after a head injury during an ice hockey game. The patient underwent comprehensive assessment at a multidisciplinary concussion program, including neuro-ophthalmological examination, neurocognitive testing, and graded aerobic treadmill testing...
January 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/27996092/maxillofacial-injuries-among-national-collegiate-athletic-association-ncaa-athletes-2004-to-2014
#4
Stephen R Chorney, Lindsay Sobin, Parul Goyal, Amar C Suryadevara
OBJECTIVE: Participation in National Collegiate Athletic Association (NCAA) sports increases annually, yet the risk of maxillofacial injuries among these athletes is unknown. We report the incidence and trends in maxillofacial injuries among NCAA athletes. STUDY DESIGN: Retrospective study of the NCAA Injury Surveillance System (ISS) representing athletes from seven men's and eight women's sports across Divisions 1, 2, and 3. Incidence of maxillofacial injuries by sport, gender, anatomic location, and injuries requiring surgery were measured...
December 20, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27940514/should-school-boards-discontinue-support-for-high-school-football
#5
Lewis H Margolis, Greg Canty, Mark Halstead, John D Lantos
A pediatrician is asked by her local school board to help them decide whether to discontinue their high school football program. She reviews the available evidence on the risks of football and finds it hopelessly contradictory. Some scholars claim that football is clearly more dangerous than other sports. Others suggest that the risks of football are comparable to other sports, such as lacrosse, ice hockey, or soccer. She finds very little data on the long-term sequelae of concussions. She sees claims that good coaching and a school culture that prioritizes the health of athletes over winning can reduce morbidity from sports injuries...
January 2017: Pediatrics
https://www.readbyqxmd.com/read/27920584/evaluation-management-and-prevention-of-lower-extremity-youth-ice-hockey-injuries
#6
REVIEW
Charles A Popkin, Brian M Schulz, Caroline N Park, Thomas S Bottiglieri, T Sean Lynch
Ice hockey is a fast-paced sport played by increasing numbers of children and adolescents in North America and around the world. Requiring a unique blend of skill, finesse, power and teamwork, ice hockey can become a lifelong recreational activity. Despite the rising popularity of the sport, there is ongoing concern about the high frequency of musculoskeletal injury associated with participation in ice hockey. Injury rates in ice hockey are among the highest in all competitive sports. Numerous research studies have been implemented to better understand the risks of injury...
2016: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/27918675/biomechanics-in-paralympics-implications-for-performance
#7
Floor Morriën, Matthew J D Taylor, Florentina J Hettinga
PURPOSE: To provide an overview of biomechanical studies in Paralympic research and their relevance for performance in Paralympic sports. METHODS: Search terms ' Paralympic Biomechanics', 'Paralympic Sport Performance', 'Paralympic Athlete Performance', and Paralympic Athlete' were entered into the electronic database PubMed. RESULTS: Thirty-four studies were included. Biomechanical studies in Paralympics mainly contributed to performance enhancement by technical optimization (n=32) and/or injury prevention (n=6)...
December 5, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27918670/combined-plyometric-strength-training-improves-ice-hockey-players-on-ice-sprint
#8
Torstein E Dæhlin, Ole C Haugen, Simen Haugerud, Ivana Hollan, Truls Raastad, Bent R Rønnestad
: Combined plyometric and strength training have previously been suggested as a strategy to improve skating performance in ice hockey players. However, the effects of combined plyometric and strength training has not been previously been compared to the effects of strength training only. PURPOSE: To compare the effects of combined plyometric and strength training on ice hockey players' skating sprint performance with strength training only. METHODS: Eighteen participants were randomly assigned to two groups that completed 5 strength-training sessions per week for 8 weeks...
December 5, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27914974/nonmedical-use-of-prescription-opioids-and-heroin-use-among-adolescents-involved-in-competitive-sports
#9
Philip Veliz, Carol J Boyd, Sean Esteban McCabe
PURPOSE: Examine the past-year prevalence of nonmedical use of prescription opioids (NUPOs), heroin use, and the concurrent NUPO and heroin in a sample of 12th graders involved in 16 different sports. METHODS: A secondary analysis of nationally representative data from nine cohorts (2006-2014) of the Monitoring the Future study (n = 21,557). RESULTS: No differences were found between 12th graders who participated in at least one competitive sport and nonparticipants with respect to past-year NUPO, heroin use, and concurrent NUPO and heroin use...
November 30, 2016: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/27900166/concussed-athletes-are-more-prone-to-injury-both-before-and-after-their-index-concussion-a-data-base-analysis-of-699-concussed-contact-sports-athletes
#10
Erik Burman, Jack Lysholm, Pashtun Shahim, Christer Malm, Yelverton Tegner
BACKGROUND: Ice hockey and football players suffering concussions might have an increased risk for injuries afterwards. We aimed to investigate if concussions predisposed athletes for subsequent sport injuries. METHODS: Patient data were obtained from a data base established at the University Hospital in Umea, Sweden. Athletes who had suffered a concussion were included if they had been aged between 15 and 35 years of age, and played ice hockey, football (soccer), floorball and handball...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27820725/training-strategies-to-improve-muscle-power-is-olympic-style-weightlifting-relevant
#11
Christian Helland, Eirik Hole, Erik Iversen, Monica Charlotte Olsson, Olivier Seynnes, Paul Andre Solberg, Gøran Paulsen
INTRODUCTION: This efficacy study investigated the effects of (1) Olympic-style weightlifting (OWL), (2) motorized strength and power training (MSPT), and (3) free weight strength and power training (FSPT) on muscle power. METHODS: Thirty-nine young athletes (20±3 yr.; ice hockey, volleyball and badminton) were randomized into the three training groups. All groups participated in 2-3 sessions/week for 8 weeks. The MSPT and FSPT groups trained using squats (two legs and single leg) with high force and high power, while the OWL group trained using clean and snatch exercises...
November 3, 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27811546/carbon-monoxide-exposure-in-youth-ice-hockey
#12
Theodore Macnow, Rebekah Mannix, William P Meehan
OBJECTIVE: To examine the effect of ice resurfacer type on carboxyhemoglobin levels in youth hockey players. We hypothesized that players in arenas with electric resurfacers would have normal, stable carboxyhemoglobin levels during games, whereas those in arenas with internal combustion engine (IC) resurfacers would have an increase in carboxyhemoglobin levels. DESIGN: Prospective cohort study. SETTING: Enclosed ice arenas in the northeastern United States...
November 2, 2016: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/27791705/head-impacts-in-a-junior-rugby-league-team-measured-with-a-wireless-head-impact-sensor-an-exploratory-analysis
#13
Doug King, Patria Hume, Conor Gissane, Trevor Clark
OBJECTIVE The aim of this study was to investigate the frequency, magnitude, and distribution of head impacts sustained by players in a junior rugby league over a season of matches. METHODS The authors performed a prospective cohort analysis of impact magnitude, frequency, and distribution on data collected with instrumented XPatches worn behind the ear of players in an "under-11" junior rugby league team (players under 11 years old). RESULTS A total of 1977 impacts were recorded. Over the course of the study, players sustained an average of 116 impacts (average of 13 impacts per player per match)...
January 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/27789471/the-effect-of-the-zero-tolerance-for-head-contact-rule-change-on-the-risk-of-concussions-in-youth-ice-hockey-players
#14
Maciej P Krolikowski, Amanda M Black, Luz Palacios-Derflingher, Tracy A Blake, Kathryn J Schneider, Carolyn A Emery
BACKGROUND: Ice hockey is a popular winter sport in Canada. Concussions account for the greatest proportion of all injuries in youth ice hockey. In 2011, a policy change enforcing "zero tolerance for head contact" was implemented in all leagues in Canada. PURPOSE: To determine if the risk of game-related concussions and more severe concussions (ie, resulting in >10 days of time loss) and the mechanisms of a concussion differed for Pee Wee class (ages 11-12 years) and Bantam class (ages 13-14 years) players after the 2011 "zero tolerance for head contact" policy change compared with players in similar divisions before the policy change...
October 27, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27787350/epidemiology-of-snow-skiing-versus-snowboarding-related-concussions-presenting-to-the-emergency-department-in-the-united-states-from-2010-to-2014
#15
Joseph A Gil, Steven F DeFroda, Peter Kriz, Brett D Owens
OBJECTIVES: To examine the trend of concussions in skiers and snowboarders from 2010 to 2014; and to quantify and compare the incidence of concussions injuries in skiers and snowboarders who presented to emergency departments in the United States in 2014. DESIGN: Cross-sectional study of concussions in skiers and snowboarders who were evaluated in emergency departments in the United States. MAIN OUTCOMES MEASURE: Incidence of concussions. RESULTS: The trend of the annual incidence of concussions for skiers and snowboarders remained stable from 2010 to 2014...
October 25, 2016: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/27776004/the-effect-of-shoulder-pad-design-on-head-impact-severity-during-checking
#16
Shane Virani, Colin Russell, Megan L Bruschetta, Kevin Ngoc Hua, Brigitte M Potvin, David Cox, Stephen N Robinovitch
INTRODUCTION: Shoulder-to-head contact is the most common cause of concussions in ice hockey, accounting for 42% of cases in the National Hockey League (NHL). The goal of this project was to determine how shoulder pad stiffness, modified by adding foam padding over the shoulder cap of existing shoulder pads, affected head impact severity when participants delivered checks to an instrumented dummy. METHODS: Fifteen participants administered "the hardest shoulder checks they were comfortable delivering" to the head of a dummy equipped with tri-axial accelerometers and gyros mounted in its helmet...
October 21, 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27768517/mild-dehydration-does-not-influence-performance-or-skeletal-muscle-metabolism-during-simulated-ice-hockey-exercise-in-men
#17
Matthew S Palmer, George Jf Heigenhauser, MyLinh Duong, Lawrence L Spriet
This study determined whether mild dehydration influenced skeletal muscle glycogen use, core temperature or performance during high-intensity, intermittent cycle-based exercise in ice hockey players vs. staying hydrated with water. Eight males (21.6 ± 0.4 yr, 183.5 ± 1.6 cm, 83.9 ± 3.7 kg, 50.2 ± 1.9 mL·kg(-1)·min(-1)) performed two trials separated by 7 days. The protocol consisted of 3 periods (P) containing 10 x 45-second cycling bouts at ~133% VO2max, followed by 135 seconds of passive rest. Subjects drank no fluid and dehydrated during the protocol (NF), or maintained body mass by drinking WATER...
October 21, 2016: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/27764034/triple-fracture-of-the-intra-articular-second-metacarpal-head-intra-articular-fourth-metacarpal-base-and-ulnar-styloid-of-an-ice-hockey-player-a-case-report
#18
Hiroyoshi Hagiwara, Takashi Ajiki, Suguru Hagiwara, Naoya Sugimoto, Katsushi Takeshita
We present a case of simultaneous ipsilateral fractures at the intra-articular second metacarpal head, intra-articular fourth metacarpal base, and ulnar styloid. These fractures were caused by the peculiar condition of a blow to the fist during an ice hockey game; the hand was struck while it was gripping a stick. The specific combination of these fractures has not been previously reported in the literature. In this incident, axial compression force was transmitted from the second and fourth metacarpal heads while skipping the third metacarpal head to the ulnar side of the wrist via the carpometacarpal joints and carpal bones...
July 27, 2016: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/27747774/does-relative-age-affect-career-length-in-north-american-professional-sports
#19
C Steingröver, N Wattie, J Baker, J Schorer
BACKGROUND: Relative age effects (RAEs) typically favour older members within a cohort; however, research suggests that younger players may experience some long-term advantages, such as longer career length. The purposes of this study were to replicate previous findings on RAEs among National Hockey League (NHL) ice hockey players, National Basketball Association (NBA) basketball players and National Football League (NFL) football players and to investigate the influence of relative age on career length in all three sports...
December 2016: Sports Medicine—Open
https://www.readbyqxmd.com/read/27747745/epidemiology-of-sports-related-concussion-in-seven-us-high-school-and-collegiate-sports
#20
Stephen W Marshall, Kevin M Guskiewicz, Viswanathan Shankar, Michael McCrea, Robert C Cantu
BACKGROUND: The epidemiology of sports-related concussion is not well-described in the literature. This paper presents a descriptive epidemiology of concussion in seven high school and collegiate sports. METHODS: We used the data from Concussion Prevention Initiative (CPI), which enrolled 8905 athletes at 210 high schools and 26 colleges in a prospective cohort study of 7 sports (football, men's and women's soccer, men's and women's lacrosse, and men's and women's ice hockey) between 1999 and 2001...
December 2015: Injury Epidemiology
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