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https://www.readbyqxmd.com/read/28328719/predicting-the-maximum-dynamic-strength-in-bench-press-the-high-precision-of-the-bar-velocity-approach
#1
Irineu Loturco, Ronaldo Kobal, José E Moraes, Katia Kitamura, César C Cal Abad, Lucas A Pereira, Fábio Y Nakamura
Loturco, I, Kobal, R, Moraes, JE, Kitamura, K, Cal Abad, CC, Pereira, LA, and Nakamura, FY. Predicting the maximum dynamic strength in bench press: the high precision of the bar velocity approach. J Strength Cond Res 31(4): 1127-1131, 2017-The aim of this study was to determine the force-velocity relationship and test the possibility of determining the 1 repetition maximum (1RM) in "free weight" and Smith machine bench presses. Thirty-six male top-level athletes from 3 different sports were submitted to a standardized 1RM bench press assessment (free weight or Smith machine, in randomized order), following standard procedures encompassing lifts performed at 40-100% of 1RM...
April 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28328717/perceived-sleep-quality-mood-states-and-their-relationship-with-performance-among-brazilian-elite-athletes-during-a-competitive-period
#2
Ricardo Brandt, Guilherme G Bevilacqua, Alexandro Andrade
Brandt, R, Bevilacqua, GG, and Andrade, A. Perceived sleep quality, mood states, and their relationship with performance among Brazilian elite athletes during a competitive period. J Strength Cond Res 31(4): 1033-1039, 2017-We described the perceived sleep quality and mood states of elite athletes during a competitive period, and clarified their relationship to athletes' sport performance. Participants were 576 Brazilian elite athletes (404 men and 172 women) of individual and team sports. Mood states were evaluated using the Brunel Mood Scale, whereas perceived sleep quality was evaluated using a single question ("How would you evaluate the quality of your sleep in the last few days?")...
April 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28325645/athletic-identity-compulsive-exercise-and-eating-psychopathology-in-long-distance-runners
#3
Robert Turton, Huw Goodwin, Caroline Meyer
Having a high athletic identity is thought to increase vulnerability for compulsive exercise and Eating Disorder (ED) psychopathology. This study examined whether there is an association between athletic identity and levels of compulsive exercise and ED psychopathology in long-distance runners. A sample of 501 long-distance runners completed the Athletic Identity Measurement Scale (AIMS), Compulsive Exercise Test (CET) and Eating Disorders Examination Questionnaire (EDEQ). There was a significant positive association between participants' AIMS and total CET scores (moderate effect size; r=0...
March 8, 2017: Eating Behaviors
https://www.readbyqxmd.com/read/28321588/use-of-bioimpedianciometer-as-predictor-of-mountain-marathon-performance
#4
Vicente Javier Clemente-Suarez, Pantelis Theodoros Nikolaidis
This study aimed to examine the relation among body composition, training experience and race time during a mountain marathon. Body composition and training pre-race experience analyses were conducted previous to a mountain marathon in 52 male athletes. A significant correlation between race time and mountain marathon with chronological age, body fat mass, percentage of body fat (BF), level of abdominal obesity, sport experience and daily training volume was revealed. In addition, BF and athlete's chronological age were negatively associated with race performance...
May 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28320567/gender-differences-in-concussion-and-postinjury-cognitive-findings-in-an-older-and-younger-pediatric-population
#5
Sarah Tanveer, Nassim Zecavati, Elizabeth Bronson Delasobera, Temitayo Oyefunmike Oyegbile
BACKGROUND: Studies have documented gender differences associated with concussion. The purpose of this study was to determine if these gender differences are also noted within a pediatric population. METHODS: This prospective study analyzed 1971 patients who had completed preconcussion and postconcussion neuropsychological testing within the Washington, DC, area. RESULTS: Our results showed that children and adolescents with concussion exhibit gender differences with respect to risk factors, recovery, and symptomatology...
February 9, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28316263/individualised-dietary-strategies-for-olympic-combat-sports-acute-weight-loss-recovery-and-competition-nutrition
#6
Reid Reale, Gary Slater, Louise M Burke
Olympic combat sports separate athletes into weight divisions, in an attempt to reduce size, strength, range and/or leverage disparities between competitors. Official weigh-ins are conducted anywhere from 3 and up to 24 h prior to competition ensuring athletes meet weight requirements (i.e. have 'made weight'). Fighters commonly aim to compete in weight divisions lower than their day-to-day weight, achieved via chronic and acute manipulations of body mass (BM). Although these manipulations may impair health and absolute performance, their strategic use can improve competitive success...
March 19, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28314495/global-service-learning-and-student-athletes-a-model-for-enhanced-academic-inclusion-at-the-university-of-washington
#7
Holly M Barker
BACKGROUND: The University of Washington (UW) continues to create opportunities to engage all students in transformational undergraduate educational opportunities, such as study abroad. OBJECTIVE: This article describes specific efforts to increase inclusion for student-athletes in study abroad, particularly for first-generation students, including low-income students of color. Given the overrepresentation of students of color in sports vis-à-vis the larger student body at predominantly white institutions (PWIs), like UW, service-learning in communities beyond campus boundaries provides opportunities to apply international learning to a local context and to create a continuum of learning...
November 2016: Annals of Global Health
https://www.readbyqxmd.com/read/28287685/care-of-shoulder-pain-in-the-overhead-athlete
#8
Joseph Chorley, Richard E Eccles, Armand Scurfield
Shoulder complaints are common in the overhead athlete. Understanding the biomechanics of throwing and swimming requires understanding the importance of maintaining the glenohumeral relationship of the shoulder. Capsular laxity, humeral retrotorsion, glenoid retroversion, glenohumeral internal rotation deficit, and scapular dyskinesis can all contribute to shoulder dysfunction and pain. Injuries are more likely during peak height velocity, especially when coupled with overuse, previous injuries not adequately treated, or change in the demands on the shoulder such as a new technique, bigger field, or longer race...
March 1, 2017: Pediatric Annals
https://www.readbyqxmd.com/read/28287684/the-value-of-sleep-on-athletic-performance-injury-and-recovery-in-the-young-athlete
#9
Elizabeth A Copenhaver, Alex B Diamond
Adequate sleep can easily become compromised as student-athletes try to balance the multiple demands on their time. People with sleep deficiency are at increased risk for acute illnesses, traumatic sports injuries, and development of chronic diseases. Training sessions or competitions during extremely early or late hours can interfere with circadian and homeostatic rhythms. Adjusting the training schedule to improve sleep duration has a significantly positive impact on several aspects of athletic performance...
March 1, 2017: Pediatric Annals
https://www.readbyqxmd.com/read/28284923/vascular-quadrilateral-space-syndrome-in-three-overhead-throwing-athletes-an-underdiagnosed-cause-of-digital-ischemia
#10
Johnathon Rollo, David Rigberg, Hugh Gelabert
Vascular quadrilateral space syndrome (vQSS) is an underdiagnosed cause of extremity ischemia, pain and paresthesia in overhand throwing athletes. The mechanism of vQSS is thought to result from repeated abduction and external rotation of the arm leading to a distraction injury of the posterior circumflex humoral artery (PCHA) as this courses through the quadrilateral space. This trauma may cause dissection and dissecting aneurysm formation. Thrombus from this arterial injury then embolizes down the arm resulting in the symptomatic presentation...
March 8, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28282761/gait-variability-and-symmetry-in-world-class-senior-and-junior-race-walkers
#11
Catherine B Tucker, Brian Hanley
The aim of this study was to analyse gait variability and symmetry in race walkers. Eighteen senior and 17 junior athletes race walked on an instrumented treadmill (for 10 km and 5 km, respectively) at speeds equivalent to 103% of season's best time for 20 km and 10 km, respectively. Spatio-temporal and ground reaction force (GRF) data were recorded at 2.5 km, and at 4.5, 6.5 and 8.5 km for a subsection of athletes. Gait variability was measured using median absolute deviation (MAD) whereas inter-leg symmetry was measured using the symmetry angle...
September 22, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28282758/the-effects-of-barbell-load-on-countermovement-vertical-jump-power-and-net-impulse
#12
Peter D Mundy, Neal A Smith, Mike A Lauder, Jason P Lake
The aim of this study was to examine the effects of barbell load on countermovement vertical jump (CMJ) power and net impulse within a theoretically valid framework, cognisant of the underpinning force, temporal, and spatial components. A total of 24 resistance-trained rugby union athletes (average ± SD: age: 23.1 ± 3.4 years; height: 1.83 ± 0.05 m; body mass (BM): 91.3 ± 10.5 kg) performed maximal CMJ under 5 experimental conditions in a randomised, counterbalanced order: unloaded, and with additional loads of 25%, 50%, 75%, and 100% of BM...
September 26, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28279844/practices-attitudes-towards-recovery-in-elite-asian-uk-adolescent-athletes
#13
Andrew M Murray, Anthony P Turner, John Sproule, Marco Cardinale
OBJECTIVES: Assess current practice and attitudes towards recovery in adolescent athletes. DESIGN: Questionnaires were administered either via print or online questionnaire. PARTICIPANTS: Athletes and coaches from within Asia were surveyed (n = 112 & 53), with a comparative sample in the UK (n = 53 & 8). MAIN OUTCOME MEASURES: The approaches and attitudes to recovery in both training and competition. RESULTS: Adolescent athletes perceive a variety of recovery modalities as important, though prioritise active recovery, nutrition and sleep...
December 23, 2016: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28277424/comparing-performance-during-morning-vs-afternoon-training-sessions-in-intercollegiate-basketball-players
#14
Aaron D Heishman, Michael A Curtis, Ethan Saliba, Robert J Hornett, Steven K Malin, Arthur L Weltman
Time of day is a key factor that influences the optimization of athletic performance. Intercollegiate coaches oftentimes hold early morning strength training sessions for a variety of factors including convenience. However, few studies have specifically investigated the effect of early morning vs. late afternoon strength training on performance indices of fatigue. This is athletically important because circadian/ultradian rhythms and alterations in sleep patterns can impact training ability. Therefore, the purpose of the present study was to examine the effects of morning vs...
March 8, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28271547/coach-led-prevention-programs-are-effective-in-reducing-anterior-cruciate-ligament-injury-risk-in-female-athletes-a-number-needed-to-treat-analysis
#15
K R Pfile, B Curioz
The purpose of this study was to determine whether the effectiveness of an anterior cruciate ligament (ACL) prevention program is impacted by the individual(s) directing the program. A number-needed-to-treat analysis compared the effectiveness of injury prevention measures when either directed by a coach or a mixed leadership group consisting of coach and healthcare providers. Eleven studies were included for analysis. Number-needed-to-treat and relative risk reduction (RRR) were calculated for each study and data sets were pooled based on the intervention leader...
March 8, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28269975/effects-of-detraining-on-neuromuscular-performance-in-a-selected-group-of-elite-women-pole-vaulters-a-case-study
#16
Irineu Loturco, Lucas A Pereira, Ronaldo Kobal, Henrique C Martins, Katia Kitamura, Cesar C Abad, Fabio Y Nakamura
The aim of this paper was to determine the effects of 28 days of inactivity on neuromuscular performance of elite women pole-vaulters. Four athletes undertook measurements of rate of force development (RFD), unloaded and loaded vertical jump tests, drop jumps and a 45 m sprint test before and after a transition period of planned inactivity. The RFD, the ability to accelerate over very short distances (5 m) and sprinting capacity improved after training cessation. Acceleration over longer distances (5-45 m) was impaired, while unloaded and loaded vertical jump tests suffered trivial to small changes...
April 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28257612/health-care-in-high-school-athletics-in-west-virginia
#17
Kyle Schneider, Wesley Meeteer, Jill A Nolan, H David Campbell
INTRODUCTION: The purpose of this study was to determine the level of implementation of emergency preparedness procedures and administrative procedures to provide appropriate medical coverage to high school athletics in the predominantly rural US state of West Virginia. Particular attention was given to determine the extent to which the schools provided the recommendations for best practice in the National Athletic Trainers Association consensus statement outlining appropriate medical coverage for high school athletics...
January 2017: Rural and Remote Health
https://www.readbyqxmd.com/read/28255565/defining-the-long-toss-a-professional-baseball-epidemiological-study
#18
Austin V Stone, Sandeep Mannava, Anita Patel, Alejandro Marquez-Lara, Michael T Freehill
BACKGROUND: Despite widespread use of long-toss throwing in baseball as a component of arm conditioning, interval throwing programs, and rehabilitation, long-toss distance and throwing mechanics remain controversial. PURPOSE: To ascertain the perceived definition of long-toss throwing through a survey of professional pitchers, pitching coaches (PCs), and certified athletic trainers (ATCs) associated with Major League Baseball. STUDY DESIGN: Descriptive epidemiology study...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28253038/monitoring-training-loads-the-past-the-present-and-the-future
#19
Carl Foster, Jose A Rodriguez-Marroyo, Jos J de Koning
Training monitoring is about keeping track of what athletes accomplish in training, for the purpose of improving the interaction between coach and athlete. Over history there have been several basic schemes of training monitoring. In the earliest days training monitoring was about observing the athlete during standard workouts. However, difficulty in standardizing the conditions of training made this process unreliable. With the advent of interval training, monitoring became more systematic. However, imprecision in the measurement of HR evolved interval training toward index workouts, where the main monitored parameter was average time required to complete index workouts...
March 2, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28253034/playing-experience-and-position-influence-injury-risk-among-ncaa-division-i-collegiate-footballers
#20
Robert McCunn, Hugh H K Fullagar, Sean Williams, Travis J Halseth, John A Sampson, Andrew Murray
PURPOSE: American football is widely played by collegiate student-athletes throughout the United States; however, the associated injury risk is greater than in other team sports. Numerous factors likely contribute to this risk yet research identifying these risk factors is limited. The present study sought to explore the relationship between playing experience and position on injury risk within NCAA Division I collegiate footballers. METHODS: Seventy-six male collegiate student athletes within the American football program of an NCAA Division I university participated...
March 2, 2017: International Journal of Sports Physiology and Performance
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