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Monitoring, athlete, recovery, performance

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https://www.readbyqxmd.com/read/29686813/resting-sympatho-vagal-balance-is-related-to-10-km-running-performance-in-master-endurance-athletes
#1
Angelo Cataldo, Antonino Bianco, Antonio Paoli, Dario Cerasola, Saverio Alagna, Giuseppe Messina, Daniele Zangla, Marcello Traina
Relationships between heart rate recovery after exercise (HRR, baseline heart rate variability measures (HRV), and time to perform a 10Km running trial (t10Km) were evaluated in "master" athletes of endurance to assess whether the measured indexes may be useful for monitoring the training status of the athletes. Ten "master" athletes of endurance, aged 40-60 years, were recruited. After baseline measures of HRV, the athletes performed a graded maximal test on treadmill and HRR was measured at 1 and 2 minutes from recovery...
January 12, 2018: European Journal of Translational Myology
https://www.readbyqxmd.com/read/29651858/sleep-related-issues-for-recovery-and-performance-in-athletes
#2
Sarah Kölling, Rob Duffield, Daniel Erlacher, Ranel Venter, Shona L Halson
The body of research that reports the relevance of sleep in high-performance sports is growing steadily. While the identification of sleep cycles and diagnosis of sleep disorders is limited to lab-based assessment via polysomnography, the development of activity-based devices estimating sleep patterns provides greater insight into the sleep behaviour of athletes in ecological settings. Overall, small sleep quantity and/or poor quality appears to exist in many athletic populations, though this may be related to training and competition context...
April 13, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29584530/monitoring-training-load-recovery-and-performance-of-brazilian-professional-volleyball-players-during-a-season
#3
Paula B Debien, Marcelly Mancini, Danilo R Coimbra, Daniel G S de Freitas, Renato Miranda, Maurício G Bara Filho
PURPOSE: The aim of this study is to describe and analyze the distribution of internal training load (ITL), recovery, and physical performance of professional volleyball players throughout one season. METHODS: 15 male professional Brazilian volleyball players participated in this study. The session rating of perceived exertion (session-RPE) and Total Quality Recovery (TQR) score were collected daily for 36 weeks. The session-RPE was collected after each training session and the TQR before the first session of the day...
March 27, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29566543/beetroot-based-gel-supplementation-improves-handgrip-strength-forearm-muscle-o2-saturation-but-not-exercise-tolerance-and-blood-volume-in-jiu-jitsu-athletes
#4
Gustavo Vieira de Oliveira, Luiz Nascimento, Mônica Volino-Souza, Jacilene Mesquita, Thiago Alvares
The ergogenic effect of beetroot on the exercise performance of trained cyclists, runners, kayakers, and swimmers has been demonstrated. However, whether or not beetroot supplementation presents a beneficial effect on the exercise performance of jiu-jitsu athletes (JJA) remains inconclusive. Therefore, present study assessed the effect of beetroot-based gel (BG) supplementation on maximal voluntary contraction (MVC), exercise time until fatigue (ETF), muscle O2 saturation (SmO2), blood volume (tHb), and plasma nitrate and lactate in response to handgrip isotonic exercise (HIE) in JJA...
March 22, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29543069/multidimensional-monitoring-of-recovery-status-and-implications-for-performance
#5
Jahan Heidari, Jürgen Beckmann, Maurizio Bertollo, Michel Brink, Wolfgang Kallus, Claudio Robazza, Michael Kellmann
Monitoring of recovery in the context of athletic performance has gained significant importance during recent years. As a systematic process of data collection and evaluation, the monitoring of recovery can be implemented for various purposes. It may aid to prevent negative outcomes of training or competition, such as underrecovery, overtraining, or injuries. Further, it aims at establishing routines and strategies necessary to guarantee athletes' readiness for performance by restoring their depleted resources...
March 15, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29483874/cardiac-autonomic-modulations-and-psychological-correlates-in-the-yukon-arctic-ultra-the-longest-and-the-coldest-ultramarathon
#6
Lea C Rundfeldt, Martina A Maggioni, Robert H Coker, Hanns-Christian Gunga, Alain Riveros-Rivera, Adriane Schalt, Mathias Steinach
Studies on human physical performance in extreme environments have effectively approached the investigation of adaptation mechanisms and their physiological limits. As scientific interest in the interplay between physiological and psychological aspects of performance is growing, we aimed to investigate cardiac autonomic control, by means of heart rate variability, and psychological correlates, in competitors of a subarctic ultramarathon, taking place over a 690 km course (temperatures between +5 and -47°C)...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29466274/dissociated-time-course-of-recovery-between-strength-and-power-after-isoinertial-resistance-loading-in-rugby-union-players
#7
Rodney A Kennedy, David Drake
Kennedy, RA and Drake, D. Dissociated time course of recovery between strength and power after isoinertial resistance loading in rugby union players. J Strength Cond Res 32(3): 748-755, 2018-There is a substantial amount of research on the responses to isometric and eccentric loading. However, only a paucity of literature exists on the responses to isoinertial loading, especially in trained athletic populations using realistic loading protocols. The purpose of this study was to examine the acute neuromuscular response to a bout of isoinertial resistance loading in elite rugby players...
March 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29450135/development-of-a-specific-index-to-detect-malnutrition-in-athletes-validity-in-weight-class-or-intermittent-fasted-athletes
#8
François D Desgorces, Christophe Moinard, Mounir Chennaoui, Jean-François Toussaint, Cyril Petibois, Philippe Noirez
Fasted or weight-category athletes manage their training under strict diet conditions that could impair the stress-recovery balance and result in acute or chronic fatigue. However, to date, no validated biomarker are available to quantify this phenomena. The aim of this study was to assess the validity of a specific index combining plasma albumin and weight change to detect nutrition-related risks of fatigue increase and under-performance in athletes experiencing particular nutritional conditions. An athlete's nutrition risk index (ANRI) equation, based on data from lightweight and heavyweight rowers, was developed using relationship between plasma albumin concentrations combined to weight changes with sport performance and overtraining scores and was tested by odds ratio for failure...
June 2017: Biochimie open
https://www.readbyqxmd.com/read/29444097/the-effects-of-intensified-training-on-resting-metabolic-rate-rmr-body-composition-and-performance-in-trained-cyclists
#9
Amy L Woods, Anthony J Rice, Laura A Garvican-Lewis, Alice M Wallett, Bronwen Lundy, Margot A Rogers, Marijke Welvaert, Shona Halson, Andrew McKune, Kevin G Thompson
BACKGROUND: Recent research has demonstrated decreases in resting metabolic rate (RMR), body composition and performance following a period of intensified training in elite athletes, however the underlying mechanisms of change remain unclear. Therefore, the aim of the present study was to investigate how an intensified training period, designed to elicit overreaching, affects RMR, body composition, and performance in trained endurance athletes, and to elucidate underlying mechanisms. METHOD: Thirteen (n = 13) trained male cyclists completed a six-week training program consisting of a "Baseline" week (100% of regular training load), a "Build" week (~120% of Baseline load), two "Loading" weeks (~140, 150% of Baseline load, respectively) and two "Recovery" weeks (~80% of Baseline load)...
2018: PloS One
https://www.readbyqxmd.com/read/29420349/thyroid-disorders-in-athletes
#10
John R Luksch, Philip B Collins
When athletic performance begins to deteriorate, it is important to identify possible underlying etiologies to explain such a phenomenon. Causes include inadequate nutrition, improper training habits, infection, and hematologic or endocrine diseases. In athletes, a thorough investigation of potentially reversible underlying medical conditions may be warranted when there are noted disruptions in training, competition, and recovery. Thyroid disorders should be considered in athletes in whom such a condition is suspected...
February 2018: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/29397314/overload-blunts-baroreflex-only-in-overreached-athletes
#11
Nicolas Bourdillon, Sasan Yazdani, Masih Nilchian, Alessio Mariano, Jean-Marc Vesin, Grégoire P Millet
OBJECTIVES: Heart rate variability (HRV) is commonly used to diagnose overreaching and monitor athletes' responses to training. Baroreflex sensitivity (BRS) is modified by changes in training load and might be another means to detect overreaching. The goal of this study was to assess BRS and HRV changes in two groups of athletes responding either negatively (FOR) or positively (AF) to similar training overload. DESIGN: Fifteen athletes performed 2-week baseline (BSL) training followed by 3-week overload (+45%; OVL) and 2-week recovery (-20%; RCV)...
January 31, 2018: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29345524/recovery-and-performance-in-sport-consensus-statement
#12
Michael Kellmann, Maurizio Bertollo, Laurent Bosquet, Michel Brink, Aaron Coutts, Rob Duffield, Daniel Erlacher, Shona Halson, Anne Hecksteden, Jahan Heidari, Romain Meeusen, Iñigo Mujika, Claudio Robazza, Sabrina Skorski, Ranel Venter, Jürgen Beckmann
The relationship between recovery and fatigue and its impact on performance has attracted the interest of sports science for many years. An adequate balance between stress (training and competition load, other life demands) and recovery is essential for athletes to achieve continuous high-level performance. Research has focused on the examination of physiological and psychological recovery strategies to compensate external and internal training and competition loads. A systematic monitoring of recovery and the subsequent implementation of recovery routines aims at maximizing performance and preventing negative developments such as underrecovery, non-functional overreaching, the overtraining syndrome, injuries, or illnesses...
January 18, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29325894/reference-values-for-the-creatine-kinase-response-to-professional-australian-football-match-play
#13
Luke A G Inman, Michael J Rennie, Mark L Watsford, Nathan J Gibbs, James Green, Robert W Spurrs
OBJECTIVES: Due to the importance of monitoring markers of muscle damage in high-level sport from a medical and athlete recovery perspective, this study aimed to determine the upper limits of normal (ULN) for post-match plasma creatine kinase (CK) in professional Australian footballers. Raw CK values were considered, along with intra-individual deviations from the season-mean. DESIGN: Case series. METHODS: CK was collected between 36-48h following professional Australian football match-play...
December 30, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29259810/capturing-effort-and-recovery-reactive-and-recuperative-cortisol-responses-to-competition-in-well-trained-rowers
#14
Victor L Kallen, Janine H Stubbe, Henk Jan Zwolle, Pierre Valk
Background/aim: It is well known that physical strain is associated with increased cortisol production. And although mental stress elevates cortisol concentrations as well, little is known of the independent and/or combined effects of both on the secretion of cortisol. Aim of the study was to investigate the day-to-day cortisol dynamics associated with training, performance and recuperation and the immediate responses to mental stress and physical endurance under competitive conditions...
2017: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/29194183/hyperactivity-of-the-sympatho-adrenomedullary-system-without-any-modification-of-the-hypothalamic-pituitary-adrenal-axis-following-food-restriction-among-high-level-weightlifters
#15
Alexandre Durguerian, Edith Filaire, Catherine Drogou, Fabien Sauvet, Clément Bougard, Mounir Chennaoui
We examined the effects of six days of food restriction on salivary α-amylase (sAA), cortisol and dehydroepiandrostenedione (DHEA) awakening responses, psychological parameters and performance among eleven international weightlifters. Assessments were made at baseline (T1) and 6 days after a normal period of training while maintaining body weight (T2). Then, participants were assigned into two groups depending on whether they lost (Diet group) or maintained (Control group) their body weight. Anthropometric, psychological, physical and physiological assessments were also realized 6 days (T3) following the restricted dietary period for the Diet group...
November 29, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29189585/muscle-damage-and-metabolic-responses-to-repeated-sprint-running-with-and-without-deceleration
#16
Clare L Minahan, Daniel P Poke, Jaime Morrison, Phillip M Bellinger
This study aimed to determine whether repeated-sprint running with deceleration aggravates markers of muscle damage or delays the recovery of performance compared to repeated-sprint running without deceleration. Fourteen male team-sport athletes performed two randomly ordered testing sessions on a non-motorised treadmill with one session requiring participants to decelerate (TMd) within 4 s before stopping, or immediately step to the side of the treadmill belt at the completion of each sprint (TMa). Peak and mean velocities, speed decrement, blood lactate concentrations and oxygen uptake were monitored during the repeated-sprint running protocols...
November 16, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29154694/gait-and-quiet-stance-performance-among-adolescents-after-concussion-symptom-resolution
#17
Justin Berkner, William P Meehan, Christina L Master, David R Howell
CONTEXT:   Concussions affect a large number of US athletes each year. Returning an athlete to activity once self-reported symptoms have resolved can be problematic if unrecognized neurocognitive and balance deficits persist. Pairing cognitive and motor tasks or cognitive and quiet-stance tasks may allow clinicians to detect and monitor these changes postconcussion. OBJECTIVE:   To prospectively examine adolescent athletes' gait and quiet-stance performance while concurrently completing a cognitive task acutely after concussion and after symptom resolution...
December 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/29140183/full-title-examining-the-presence-of-back-pain-in-competitive-athletes-a-focus-on-stress-and-recovery
#18
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
#19
REVIEW
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/29072537/sleep-training-load-and-performance-in-elite-female-gymnasts
#20
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...
March 2018: European Journal of Sport Science
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