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https://www.readbyqxmd.com/read/29045995/ingesting-a-sports-drink-enhances-simulated-ice-hockey-performance-while-reducing-perceived-effort
#1
Matthew Stephen Palmer, George Heigenhauser, MyLinh Duong, Lawrence L Spriet
This study determined whether ingesting a carbohydrate-electrolyte solution (CES) vs. progressive dehydration affected skeletal muscle glycogen use and performance in ice hockey players during simulated ice hockey exercise comprised of 3 active "periods". Seven males (21.3±0.3 years, 184.7±1.2 cm, 84.2±3.9 kg, and 49.6±1.8 mL·kg(-1)·min(-1)) performed a hockey-specific protocol on two occasions and either dehydrated progressively (NF), or stayed well-hydrated by ingesting a CES. Muscle biopsies were taken at rest, before the 3(rd) period (P3), and after the final sprint in the protocol...
October 18, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29045316/understanding-the-relationship-between-coach-and-athlete-perceptions-of-training-intensity-in-youth-sport
#2
Sean Scantlebury, Kevin Till, Tom Sawczuk, Jonathon Weakley, Ben Jones
To alleviate issues arising from the over/under prescription of training load, coaches must ensure that desired athlete responses to training are being achieved. The present study aimed to assess the level of agreement between the coach intended (pre-session) and observed (post-session) rating of perceived exertion (RPE), with athlete RPE during different training intensities (easy, moderate, hard). Coach intended RPE was taken prior to all field based training sessions over an 8 week in-season period. Following training, all coaches and athletes, whom were participants in hockey, netball, rugby and soccer were asked to provide an RPE measure for the completed session...
October 16, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29031642/the-effect-of-oral-contraceptive-use-on-salivary-testosterone-concentrations-and-athlete-performance-during-international-field-hockey-matches
#3
Blair T Crewther, David Hamilton, Liam P Kilduff, Scott Drawer, Christian J Cook
OBJECTIVES: To investigate the effect of oral contraceptive (OC) use on salivary testosterone (sal-T) concentrations and performance-related statistics in international field hockey matches. DESIGN: A cohort observational study with repeated measures. METHODS: Twenty-three elite female athletes were monitored across four international field hockey matches over a nine-day period. Salivary T was assessed 45min before each match and several match performance statistics were collated; load (i...
September 29, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29031466/discerning-measures-of-conscious-brain-processes-associated-with-superior-early-motor-performance-capacity-coactivation-and-character
#4
Tina van Duijn, Tim Buszard, Merel C J Hoskens, Rich S W Masters
This study explored the relationship between working memory (WM) capacity, corticocortical communication (EEG coherence), and propensity for conscious control of movement during the performance of a complex far-aiming task. We were specifically interested in the role of these variables in predicting motor performance by novices. Forty-eight participants completed (a) an assessment of WM capacity (an adapted Rotation Span task), (b) a questionnaire that assessed the propensity to consciously control movement (the Movement Specific Reinvestment Scale), and (c) a hockey push-pass task...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/29028445/return-to-sport-specific-performance-after-primary-anterior-cruciate-ligament-reconstruction-a-systematic-review
#5
Nicholas G Mohtadi, Denise S Chan
BACKGROUND: Physicians counseling athletes on the prognosis of sport-specific performance outcomes after anterior cruciate ligament reconstruction (ACLR) depend on the published literature. However, critical appraisal of the validity and biases in these studies is required to understand how ACLR affects an athlete's ability to return to sport, the athlete's sport-specific performance, and his or her ability to achieve preinjury levels of performance. PURPOSE: This review identifies the published prognostic studies evaluating sport-specific performance outcomes after ACLR...
October 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29024137/do-male-athletes-with-already-high-initial-hemoglobin-mass-benefit-from-live-high-train-low-altitude-training
#6
Anna Hauser, Severin Troesch, Thomas Steiner, Franck Brocherie, Olivier Girard, Jonas J Saugy, Laurent Schmitt, Grégoire P Millet, Jon P Wehrlin
It has been proposed that athletes with high initial values of hemoglobin mass (Hbmass ) will have a lower Hbmass increase in response to 'live high-train low' (LHTL) altitude training. To verify this assumption, the relationship between initial absolute and relative Hbmass values and their respective Hbmass increase following LHTL in male endurance and team-sport athletes was investigated. Overall, 58 male athletes (35 well-trained endurance athletes and 23 elite male field hockey players) undertook an LHTL training camp with similar hypoxic doses (200-230 h)...
October 11, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/29023277/diagnosis-and-treatment-of-slipping-rib-syndrome
#7
Cassidy M Foley, Dai Sugimoto, David P Mooney, William P Meehan, Andrea Stracciolini
OBJECTIVE: (1) To investigate the clinical presentation, diagnosis, and treatment of slipping rib syndrome in athletes; (2) to investigate the hooking maneuver for diagnosis of slipping rib syndrome. DESIGN: Retrospective chart review of 362 athletes with rib pain. SETTING: Pediatric-based sports medicine clinic between January 1, 1999, and March 1, 2014. PATIENTS: Costochondritis, Tietze, fractures, rib tip syndrome, and unclear diagnoses were excluded...
October 6, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29018545/concussion-in-field-hockey-a-retrospective-analysis-into-the-incidence-rates-mechanisms-symptoms-and-recovery-of-concussive-injuries-sustained-by-elite-field-hockey-players
#8
Michael Rossiter, Michael Challis
OBJECTIVES: To identify the incidence and mechanisms of concussion in elite Field Hockey in different age groups and also the postconcussion symptoms and recovery times. METHODS: Data was collected retrospectively, for both training and matches, over a 12-month period from national level Field Hockey players across under-16, under-18, under-21, Development and Senior players. Mechanism of injury (including player role and field position), postconcussive symptoms and recovery times were recorded following a semistructured interview with each player...
2017: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/29016475/relationship-between-physiological-off-ice-testing-on-ice-skating-and-game-performance-in-division-i-women-s-ice-hockey-players
#9
Michelle Boland, Emily M Miele, Katie Delude
The purpose was to identify off-ice testing variables that correlate to skating and game performance in Division I collegiate women ice hockey players. Twenty female, forward and defensive players (19.95 ± 1.35 yr) were assessed for weight, height, percent fat mass (%FAT), bone mineral density, predicted one repetition maximum (RM) absolute and relative (REL%) bench press (BP) and hex bar deadlift (HDL), lower body explosive power, anaerobic power, countermovement vertical jump (CMJ), maximum inspiratory pressure (MIP), and on-ice repeated skate sprint (RSS) performance...
October 7, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28987522/taking-hockey-to-heart-potential-coronary-risks-of-watching-exciting-games
#10
EDITORIAL
David D Waters, Stanley Nattel
No abstract text is available yet for this article.
September 28, 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28987521/heart-rate-response-in-spectators-of-the-montreal-canadiens-hockey-team
#11
Leia T Khairy, Roxana Barin, Fabrice Demonière, Christine Villemaire, Marie-Josée Billo, Jean-Claude Tardif, Laurent Macle, Paul Khairy
BACKGROUND: To our knowledge, heart rate responses have not previously been assessed in hockey fans. We quantified heart rate increases in spectators of the Montreal Canadiens, compared televised with live games, explored features associated with peak heart rates, and assessed whether increases correlate with a fan passion score. METHODS: Healthy adults were enrolled, with half attending live games and half viewing televised games. All subjects completed questionnaires and had continuous Holter monitoring...
September 28, 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28980829/attention-deficit-hyperactivity-disorder-is-associated-with-baseline-child-sport-concussion-assessment-tool-third-edition-scores-in-child-hockey-players
#12
Laurel J Collings, Nathan E Cook, Shaun Porter, Cody Kusch, Jonathan Sun, Naznin Virji-Babul, Grant L Iverson, William J Panenka
OBJECTIVES: The objectives of this study were to report baseline, preseason data for the Child-SCAT3, stratified by attention deficit hyperactivity disorder (ADHD) status, and examine group differences in Child-SCAT3 performance between children with and without ADHD. DESIGN: Cross-sectional study. METHODS: Young male hockey players (n = 304), aged 8-12 years, were administered the Child-SCAT3 during pre-season. Child-SCAT3 measures included a 20-item symptom scale, a Standardised Assessment of Concussion Child Version (SAC-C), a modified Balance Error Scoring System (m-BESS), a tandem gait task, and a coordination test...
October 5, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28967243/blunt-thoracic-trauma-and-cardiac-injury-in-the-athlete-contemporary-management
#13
Cesare DE Gregorio, Ludovico Magaudda
INTRODUCTION: Commotion cordis and cardiac injuries are rare events usually following a chest blunt trauma during sports activities. EVIDENCE ACQUISITION AND SYNTHESIS: Various aetiologies have been identified to cause electrical (commotion cordis) and/or structural (contusion and further injuries) damage, but high-velocity tools such as baseballs or hockey pucks (also called projectiles) have been chiefly identified. Clinical consequences are challenging, varying from uncomplicated supraventricular arrhythmias to cardiac wall rupture...
September 29, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28937802/epidemiology-of-stress-fractures-in-collegiate-student-athletes-2004-2005-through-2013-2014-academic-years
#14
Katherine H Rizzone, Kathryn E Ackerman, Karen G Roos, Thomas P Dompier, Zachary Y Kerr
CONTEXT:   Stress fractures are injuries caused by cumulative, repetitive stress that leads to abnormal bone remodeling. Specific populations, including female athletes and endurance athletes, are at higher risk than the general athletic population. Whereas more than 460 000 individuals participate in collegiate athletics in the United States, no large study has been conducted to determine the incidence of stress fractures in collegiate athletes. OBJECTIVE:   To assess the incidence of stress fractures in National Collegiate Athletic Association (NCAA) athletes and investigate rates and patterns overall and by sport...
September 22, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28931992/knee-injury-and-osteoarthritis-outcome-score-of-korean-national-ice-hockey-players
#15
Hyeyoung Kim, Sujin Hwang, Byoung-Hee Lee
[Purpose] To investigate sports injuries in Korean national ice hockey players by surveying parts, times, types, frequency, cure, and prevention types of sports injuries and provide basic data for injury prevention and performance improvement of ice hockey players. Another purpose of this study was to evaluate the incidence of ice hockey injuries according to age and the relationship between etiological factors and injuries in high school students. [Subjects and Methods] This was a cross-sectional study. Eighteen female ice hockey players in Korean elite athletes were recruited for this study...
September 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28923320/effect-of-water-on-the-chemical-stability-of-amorphous-pharmaceuticals-2-deamidation-of-peptides-and-proteins
#16
Satoshi Ohtake, Shaoxin Feng, Evgenyi Shalaev
Role of water in chemical (in)stability is revisited, with focus on deamidation in freeze-dried amorphous proteins and peptides. Two distinct patterns for deamidation versus water have been reported, that is, a consistent increase in rate constant with water, and a "hockey stick"-type behavior. For the latter, deamidation is essentially independent of water at lower water contents and accelerates when water content increases above a threshold value. Two simple kinetic models are developed to analyze literature-reported relationships between water content and deamidation rate constants...
September 15, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28919185/epidemiology-of-cervical-spine-injuries-in-high-school-athletes-over-a-ten-year-period
#17
Adele Meron, Christopher McMullen, Scott R Laker, Dustin Currie, R Dawn Comstock
BACKGROUND: Over 7 million athletes participate in high school (HS) sports annually, with both the benefits of physical activity and risks of injury. While catastrophic cervical spine injuries have been studied, limited data are available characterizing less severe cervical spine injuries in HS athletes. OBJECTIVE: To describe and compare cervical spine injury rates and patterns among United States (US) HS athletes across 24 sports over a ten-year period. DESIGN: Descriptive epidemiology study SETTING: National sample of high schools participating in the High School Reporting Information Online (High School RIO) injury surveillance system...
September 12, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/28915360/risk-factors-for-reoperation-and-performance-based-outcomes-after-operative-fixation-of-foot-fractures-in-the-professional-athlete-a-cross-sport-analysis
#18
Sameer Singh, Kevin Larkin, Anish Kadakia, Wellington Hsu
BACKGROUND: Professional athletes are predisposed to fractures of the foot due to large stresses placed on the lower extremity. These players are concerned with efficiently returning to play at a high level. Return-to-play rates after operative treatment have been previously reported, yet performance outcomes after such treatment are generally unknown in this population. HYPOTHESIS: Overall, professional athletes sustaining a foot fracture would return to play at high rates with little impact on post-operative performance or league participation...
September 1, 2017: Sports Health
https://www.readbyqxmd.com/read/28912649/does-live-high-train-low-and-high-hypoxic-training-alter-running-mechanics-in-elite-team-sport-players
#19
Olivier Girard, Grégoire P Millet, Jean-Benoit Morin, Franck Brocherie
This study aimed to investigate if "Live High-Train Low (and High)" hypoxic training alters constant-velocity running mechanics. While residing under normobaric hypoxia (≥14 h·d(-1); FiO2 14.5-14.2%) for 14 days, twenty field hockey players performed, in addition to their usual training in normoxia, six sessions (4 × 5 × 5-s maximal sprints; 25 s passive recovery; 5 min rest) under either normobaric hypoxia (FiO2 ~14.5%, n = 9) or normoxia (FiO2 20.9%, n = 11). Before and immediately after the intervention, their running pattern was assessed at 10 and 15 km·h(-1) as well as during six 30-s runs at ~20 km·h(-1) with 30-s passive recovery on an instrumented motorised treadmill...
September 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28902760/common-ice-hockey-injuries-and-treatment-a-current-concepts-review
#20
William Mosenthal, Michael Kim, Robert Holzshu, Bryan Hanypsiak, Aravind Athiviraham
Injuries are common in ice hockey, a contact sport where players skate at high speeds on a sheet of ice and shoot a vulcanized rubber puck in excess of one hundred miles per hour. This article reviews the diagnoses and treatment of concussions, injuries to the cervical spine, and lower and upper extremities as they pertain to hockey players. Soft tissue injury of the shoulder, acromioclavicular joint separation, glenohumeral joint dislocation, clavicle fractures, metacarpal fractures, and olecranon bursitis are discussed in the upper-extremity section of the article...
September 2017: Current Sports Medicine Reports
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