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Athlete, monitoring, training, performance

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https://www.readbyqxmd.com/read/29155334/respiratory-muscle-strength-is-decreased-after-maximal-incremental-exercise-in-trained-runners-and-cyclists
#1
Ferid Oueslati, Ahmed Berriri, Jan Boone, Said Ahmaidi
The respiratory muscle fatigue seems to be able to limit exercise performance and may influence the determination of maximal oxygen uptake (V̇O2max) or maximum aerobic work rate during maximal incremental test. The aim of this study was therefore to investigate whether maximal incremental exercise decreases respiratory muscle strength. We hypothesized that respiratory muscle strength (maximal pressure) will decrease after maximal incremental exercise to exhaustion. 36 runners and 23 cyclists completed a maximal incremental test on a treadmill or a cycle ergometer with continuous monitoring of expired gases...
November 16, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/29140183/full-title-examining-the-presence-of-back-pain-in-competitive-athletes-a-focus-on-stress-and-recovery
#2
Jahan Heidari, Johanna Belz, Monika Hasenbring, Jens Kleinert, Claudia Levenig, Michael Kellmann
Context - Explanatory approaches for back pain (BP) in athletes focus on biomechanical factors while neglecting psychological perspectives. Psychological factors have gained importance in the prediction of injuries in athletes and BP in the general population, with stress and recovery emerging as central risk factors. However, scarce evidence exists regarding the role of these aspects for the prevalent burden of back pain (BP). Objective - To investigate the association between stress and recovery parameters and the presence of BP...
November 15, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/29135639/sleep-and-athletic-performance
#3
Andrew M Watson
Sleep is an essential component of health and well-being, with significant impacts on physical development, emotional regulation, cognitive performance, and quality of life. Along with being an integral part of the recovery and adaptive process between bouts of exercise, accumulating evidence suggests that increased sleep duration and improved sleep quality in athletes are associated with improved performance and competitive success. In addition, better sleep may reduce the risk of both injury and illness in athletes, not only optimizing health but also potentially enhancing performance through increased participation in training...
November 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/29112054/lower-extremity-stiffness-considerations-for-testing-performance-enhancement-and-injury-risk
#4
Jon Brazier, Sean Maloney, Chris Bishop, Paul J Read, Anthony N Turner
Brazier, J, Maloney, S, Bishop, C, Read, PJ, and Turner, AN. Lower extremity stiffness: considerations for testing, performance enhancement, and injury risk. J Strength Cond Res XX(X): 000-000, 2017-Force-deformation characteristics of the lower limb have been associated with athletic performance and may modulate the risk of injury. Despite these known associations, measurements of lower extremity stiffness are not commonly administered by strength and conditioning coaches. This review provides an overview of the available literature pertaining to the effects of lower extremity stiffness on physical performance and injury risk...
November 1, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29072537/sleep-training-load-and-performance-in-elite-female-gymnasts
#5
J Dumortier, A Mariman, J Boone, L Delesie, E Tobback, D Vogelaers, J G Bourgois
Training load (TL) and recovery should be in optimal balance to obtain maximal performance gains. We aimed to study sleep as a recovery technique and its relationship with TL and performance in elite athletes. Twenty-six elite female artistic gymnasts were divided into an under 13 (n = 6), an under 14 (n = 6), a junior (n = 7; 14-15y) and a senior (=World Championship (WC) competitors, n = 7; ≥16y) category. Sleep, through sleep logs, and training parameters, using the session Rate of Perceived Exertion (sRPE) scale, were monitored to calculate total sleep time (TST), sleep efficiency (SE), TL, monotony and strain...
October 26, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/29072031/wellness-muscle-soreness-and-neuromuscular-performance-during-a-training-week-in-volleyball-athletes
#6
Francisco Tavares, Mário Simões, Bruno Matos, Tiaki B Smith, Matthew Driller
BACKGROUND: The purpose of the current study is to analyse the acute effects of volleyball training and to compare the responses of different perceptual and neuromuscular measures to overall training load. METHODS: The training load, wellness, neuromuscular performance and perceptual measures of soreness of 13 highly-trained volleyball athletes (18 ± 1 years; 187.1 ± 7.0 cm; 84.3 ± 10.3 kg) representing the Portugal under-19 national team were monitored during a training week...
October 24, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29068864/monitoring-training-load-in-handcycling-a-case-study
#7
Sebastian Zeller, Thomas Abel, Heiko K Strueder
Zeller, S, Abel, T, and Strueder, HK. Monitoring training load in handcycling: a case study. J Strength Cond Res 31(11): 3094-3100, 2017-The aim of this study was to analyze the training intensity distribution (TID) and the total training load (TTL) for the first time in handcycling of a multiple female Paralympic medalist (lesion level: L2-3 incomplete, ASIA C, classification: WH5). This study focuses on the preparation and the competitive period of the 2015 season. The athlete completed 194 handcycling training sessions in a time of 433:53 hours, covering a total distance of 10...
November 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29039763/design-of-a-wireless-sensor-system-with-the-algorithms-of-heart-rate-and-agility-index-for-athlete-evaluation
#8
Meina Li, Youn Tae Kim
Athlete evaluation systems can effectively monitor daily training and boost performance to reduce injuries. Conventional heart-rate measurement systems can be easily affected by artifact movement, especially in the case of athletes. Significant noise can be generated owing to high-intensity activities. To improve the comfort for athletes and the accuracy of monitoring, we have proposed to combine robust heart rate and agility index monitoring algorithms into a small, light, and single node. A band-pass-filter-based R-wave detection algorithm was developed...
October 17, 2017: Sensors
https://www.readbyqxmd.com/read/28993881/maximal-rate-of-heart-rate-increase-correlates-with-fatigue-recovery-status-in-female-cyclists
#9
Maximillian J Nelson, Clint R Bellenger, Rebecca L Thomson, Eileen Y Robertson, Kade Davison, Daniela Schäfer Olstad, Jonathan D Buckley
PURPOSE: Being able to identify how an athlete is responding to training would be useful to optimise adaptation and performance. The maximal rate of heart rate increase (rHRI), a marker of heart rate acceleration has been shown to correlate with performance changes in response to changes in training load in male athletes; however, it has not been established if it also correlates with performance changes in female athletes. METHODS: rHRI and cycling performance were assessed in six female cyclists following 7 days of light training (LT), 14 days of heavy training (HT) and a 10 day taper period...
December 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28976815/dissemination-and-implementation-strategies-of-lower-extremity-preventive-training-programs-in-youth-a-clinical-review
#10
Lindsay J DiStefano, Barnett S Frank, Hayley J Root, Darin A Padua
CONTEXT: Neuromuscular preventive training programs effectively reduce injury and improve performance in youth athletes. However, program effectiveness is directly linked to program compliance, fidelity, and dosage. Preventive training programs are not widely adopted by youth sport coaches. One way to promote widespread dissemination and compliance is to identify implementation strategies that influence program adoption and maintenance. It is unknown how previously published programs have followed the elements of an implementation framework...
November 2017: Sports Health
https://www.readbyqxmd.com/read/28948583/a-narrative-review-of-the-physical-demands-and-injury-incidence-in-american-football-application-of-current-knowledge-and-practices-in-workload-management
#11
REVIEW
Toby Edwards, Tania Spiteri, Benjamin Piggott, G Gregory Haff, Christopher Joyce
The sport of American football (AmF) exposes athletes to high-velocity movements and frequent collisions during competition and training, placing them at risk of contact and non-contact injury. Due to the combative nature of the game, the majority of injuries are caused by player contact; however, a significant number are also non-contact soft-tissue injuries. The literature suggests that this mechanism of injury can be prevented through workload monitoring and management. The recent introduction of microtechnology into AmF allows practitioners and coaches to quantify the external workload of training and competition to further understand the demands of the sport...
September 25, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28930872/improving-vertical-jump-profiles-through-prescribed-movement-plans
#12
John K Mayberry, Bryce Patterson, Phil Wagner
Developing practical, reliable, and valid methods for monitoring athlete wellness and injury risk is an important goal for trainers, athletes, and coaches. Previous studies have shown that the countermovement vertical jump test (CMJ) is both a reliable and valid metric for evaluating an athlete's condition. This study examines the effectiveness of prescribed workouts on improving quality of movement during CMJ. The dataset consists of 2425 pairs of CMJ scans for high school, college, and professional athletes training at a privately owned facility...
September 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28912731/long-term-athletic-development-in-youth-alpine-ski-racing-the-effect-of-physical-fitness-ski-racing-technique-anthropometrics-and-biological-maturity-status-on-injuries
#13
Lisa Müller, Carolin Hildebrandt, Erich Müller, Christian Fink, Christian Raschner
Alpine ski racing is known to be a sport with a high risk of injuries. Because most studies have focused mainly on top-level athletes and on traumatic injuries, limited research exists about injury risk factors among youth ski racers. The aim of this study was to determine the intrinsic risk factors (anthropometrics, biological maturity, physical fitness, racing technique) for injury among youth alpine ski racers. Study participants were 81 youth ski racers attending a ski boarding school (50 males, 31 females; 9-14 years)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28912725/enhanced-strength-and-sprint-levels-and-changes-in-blood-parameters-during-a-complete-athletics-season-in-800-m-high-level-athletes
#14
Beatriz Bachero-Mena, Fernando Pareja-Blanco, Juan J González-Badillo
The purpose of this study was to analyze changes in sprint, strength, hematological, and hormonal parameters in high-level 800 m athletes during a complete athletics season. Thirteen male athletes of national and international level in 800 m (personal best ranging from 1:43 to 1:58 min:ss) participated in this study. A total of 5 tests were conducted during a complete athletics season. Athletes performed sprint tests (20 and 200 m), countermovement jump (CMJ), jump squat (JS), and full squat (SQ) tests. Blood samples (red and white blood profile) and hormones were collected in test 1 (T1), test 3 (T3), and test 5 (T5)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28902119/determination-of-vertical-jump-as-a-measure-of-neuromuscular-readiness-and-fatigue
#15
Casey M Watkins, Saldiam R Barillas, Megan A Wong, David C Archer, Ian J Dobbs, Robert G Lockie, Jared W Coburn, Tai T Tran, Lee E Brown
Coaches closely monitor training loads and periodize sessions throughout the season to create optimal adaptations at the proper time. However, only monitoring training loads ignores the innate physiological stress each athlete feels individually. Vertical jump (VJ) is widely used as a measure of lower body power, and has been used in post-match studies to demonstrate fatigue levels. However, no pre-training monitoring via VJ performance has been previously studied. Therefore, the purpose of this study was to determine the sensitivity of VJ as a measure of readiness and fatigue on a daily sessional basis...
September 6, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28892463/effect-of-different-velocity-loss-thresholds-during-a-power-oriented-resistance-training-program-on-the-mechanical-capacities-of-lower-body-muscles
#16
Alejandro Pérez-Castilla, Amador García-Ramos, Paulino Padial, Antonio J Morales-Artacho, Belén Feriche
This study compared the effects of two velocity loss thresholds during a power-oriented resistance training program on the mechanical capacities of lower-body muscles. Twenty men were counterbalanced in two groups (VL10 and VL20) based on their maximum power capacity. Both groups used the same exercises, relative intensity and repetition volume, only differing in the velocity loss threshold of each set (VL10: 10% vs. VL20: 20%). Pre- and post-training assessments included an incremental loading test and a 15-m linear sprint to assess the force- and load-velocity relationships and athletic performance variables, respectively...
September 11, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28886473/strategies-for-injury-prevention-in-brazilian-football-perceptions-of-physiotherapists-and-practices-of-premier-league-teams
#17
Maurício Couto Meurer, Marcelo Faria Silva, Bruno Manfredini Baroni
OBJECTIVES: To describe the physiotherapists perceptions and the current practices for injury prevention in elite football (soccer) clubs in Brazil. DESIGN: Cross-sectional study. SETTING: Group of Science in Sports & Exercise, Federal University of Healthy Sciences of Porto Alegre (Brazil). PARTICIPANTS: 16 of the 20 football clubs involved in the Brazilian premier league 2015. MAIN OUTCOME MEASURES: Physiotherapists answered a structured questionnaire...
November 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28875298/2d-longitudinal-lv-speckle-tracking-strain-pattern-in-breast-cancer-survivors-sports-activity-vs-exercise-as-prescription-model
#18
Giorgio Galanti, Gianni Pedrizzetti, Stefano Pedri, Laura Stefani
Prevention strategies are important to optimize and to manage heart care in breast cancer survivors. Regular physical activity at moderate intensity is normally proposed to maintain myocardial performance; however, no data is available about the different impact of different levels of physical exercise. 2D speckle tracking echocardiography (2DSTE) is an accepted method for early detection of myocardial dysfunction. The study aims to monitor the cardiac performances in breast cancer survivors by 2DSTE analysis to manage sports activity vs physical activity...
September 5, 2017: Internal and Emergency Medicine
https://www.readbyqxmd.com/read/28872380/optimizing-heat-acclimation-for-endurance-athletes-high-vs-low-intensity-training
#19
Cyril Schmit, Rob Duffield, Christophe Hausswirth, Jeanick Brisswalter, Yann Le Meur
PURPOSE: We sought to determine the effect of high- vs. low-intensity training in the heat and ensuing taper period in the heat on endurance performance. METHODS: Nineteen well-trained triathletes undertook 5 days of normal training and a 1-week taper, including either low- (HA-L, n=10) or high-intensity (HA-H, n=9) training sessions in the heat (30°C, 50% of relative humidity). A control group (n=10) reproduced their usual training in thermoneutral conditions...
September 5, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28858051/long-term-changes-in-jump-performance-and-maximum-strength-in-a-cohort-of-ncaa-division-i-women-s-volleyball-athletes
#20
Ashley A Kavanaugh, Satoshi Mizuguchi, William A Sands, Michael W Ramsey, Michael H Stone
The purpose of this investigation was to quantify the magnitude of change in maximal strength and jumping abilities over approximately one, two, and three years of supervised sport and resistance training in NCAA Division I women's volleyball athletes. This was an exploratory study on a cohort of women's volleyball athletes (n=29) split into three groups based on length of time spent in a supervised resistance training program: group 1 (n=11): 0.7±0.3 yrs, group 2 (n=9): 1.6±0.2 yrs, and group 3 (n=9): 2...
August 26, 2017: Journal of Strength and Conditioning Research
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