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Monitoring, athlete, recovery, performance

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https://www.readbyqxmd.com/read/27918666/quantification-of-training-and-competition-loads-in-endurance-sports-methods-and-applications
#1
Iñigo Mujika
Training quantification is basic to evaluate an endurance athlete's responses to the training loads, ensure adequate stress/recovery balance and determine the relationship between training and performance. Quantifying both external and internal workload is important, because the external workload does not measure the biological stress imposed by the exercise sessions. Generally used quantification methods include retrospective questionnaires, diaries, direct observation and physiological monitoring, often based on the measurement of oxygen uptake, heart rate and blood lactate concentration...
December 5, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27857520/secondary-elements-of-blood-ph-variation-can-influence-the-effort-effectiveness-based-on-adaptive-changes-within-a-group-of-elite-athletes
#2
Ştefan Adrian Martin, Valeriu Tomescu, Septimiu Voidăzan
AIM: pH is the direct indicator of the body reaction following the activities performed. Establishing precise correlations between pH and blood biochemical parameters might support the balancing of values during periods of marked physical activity. METHOD: We conducted a case study in a group of elite rowers. Twelve athletes were included in the study. Monitoring was carried out by collecting biological samples several times a day: in the morning, 80 minutes pre-workout, 12 hours after the last physical effort performed, at two different times, 10 days apart...
2016: Clujul Medical (1957)
https://www.readbyqxmd.com/read/27787466/relationship-between-running-performance-and-recovery-stress-state-in-collegiate-soccer-players
#3
Nicholas A Coker, Klarie M Ake, David L Griffin, Stephen J Rossi, Jim L McMillan, Adam J Wells
The purpose of this study was to evaluate the relationship between changes in running performance and the stress-recovery state in collegiate soccer players. Running performance was evaluated in seven Division I NCAA male soccer players (179.39±5.24 cm; 75.46±5.98 kg; 20.37±1.41 yrs.) via global positioning system over the course of 12 competitive games in a single season. The regular season was divided into four competitive blocks: B1 (n=3), B2 (n=3), B3 (n=3) and B4 (n=3). Total distance and distance covered while engaging in walking, jogging, low-speed running, high-speed running, sprinting, low-intensity running and high-intensity running were assessed during each block...
October 17, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27736255/assessing-the-measurement-sensitivity-and-diagnostic-characteristics-of-athlete-monitoring-tools-in-national-swimmers
#4
Stephen Crowcroft, Erin McCleave, Katie Slattery, Aaron J Coutts
PURPOSE: To assess measurement sensitivity and diagnostic characteristics of athlete monitoring tools to identify performance change. METHODS: Fourteen nationally competitive swimmers (11 males, 3 females, age: 21.2 ± 3.2 y) recorded daily monitoring over 15 months. The "Self-report" group (n=7) reported general health, energy levels, motivation, stress, recovery, soreness and wellness. The "Combined" group (n=7) recorded sleep quality, perceived fatigue, total quality recovery (TQR) and heart rate variability measures...
October 13, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27707536/interpreting-change-on-the-scat3-in-professional-ice-hockey-players
#5
Timo Hänninen, Jari Parkkari, Markku Tuominen, Grant L Iverson, Juha Öhman, Matti Vartiainen, Teemu M Luoto
OBJECTIVES: To examine test-retest reliability of the SCAT3 for two consecutive seasons using a large sample of professional male ice hockey players, and to make recommendations for interpreting change on the test. DESIGN: A cross-sectional descriptive study. METHODS: Preseason baseline testing was administered in the beginning of the seasons 2013-2014 and 2014-2015 to 179 professional male hockey players in rink side settings. RESULTS: The test-retest reliabilities of the SCAT3 components were uniformly low...
October 1, 2016: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/27625753/acute-responses-to-10%C3%A3-15-m-repeated-sprint-ability-exercise-in-adolescent-athletes-the-role-of-change-of-direction-and-sport-specialization
#6
Pantelis Theodoros Nikolaidis, Panagiotis Meletakos, Ioannis Tasiopoulos, Ioannis Kostoulas, Panagiotis Ganavias
BACKGROUND: The repeated sprint ability (RSA) has been studied with protocols using distances longer than 20 m per sprint, whereas basketball players cover on average less than 20-meter distance per sprint during match. OBJECTIVES: The aim of the present study was to examine the physiological impact of 10 × 15 m RSA test in straight-line (RSASL) or with change of direction (RSACOD), i.e. 10 × (7.5 + 7.5 m)) in young national level basketball players. PATIENTS AND METHODS: Young basketball players (n = 11, age 17...
June 2016: Asian Journal of Sports Medicine
https://www.readbyqxmd.com/read/27617566/assessing-overreaching-with-hrr-what-is-the-minimal-exercise-intensity-required
#7
Yann Le Meur, Martin Buchheit, Anaël Aubry, Aaron J Coutts, Christophe Hausswirth
PURPOSE: Faster heart rate recovery (HRR) following high-to-maximal exercise (≥90% HRmax) has been reported in athletes suspected of functional overreaching (f-OR). This study investigated whether this response would also occur at lower exercise intensity. METHODS AND RESULTS: HRR and rate of perceived exertion (RPE) responses were compared during an incremental intermittent running protocol to exhaustion in twenty experienced male triathletes (8 control and 13 overload subjects led to f-OR) before (Pre), immediately after an overload training period (Mid) and following a 1-week taper (Post)...
September 6, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27574913/ischemic-preconditioning-increases-muscle-perfusion-oxygen-uptake-and-force-in-strength-trained-athletes
#8
Pénélope Paradis-Deschênes, Denis R Joanisse, François Billaut
Muscle ischemia and reperfusion induced by ischemic preconditioning (IPC) can improve performance in various activities. However, the underlying mechanisms are still poorly understood. The purpose of this study was to examine the effects of IPC on muscle hemodynamics and oxygen (O2) uptake during repeated maximal contractions. In a cross-over, randomized, single-blind study, 10 strength-trained men performed 5 sets of 5 maximal voluntary knee extensions of the right leg on an isokinetic dynamometer, preceded by either IPC of the right lower limb (3×5-min compression/5-min reperfusion cycles at 200 mm Hg) or sham (20 mm Hg)...
September 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/27491620/the-impact-of-sleeping-with-reduced-glycogen-stores-on-immunity-and-sleep-in-triathletes
#9
Julien Louis, Laurie-Anne Marquet, Eve Tiollier, Stéphane Bermon, Christophe Hausswirth, Jeanick Brisswalter
PURPOSE: We investigated the effects of a 3-week dietary periodization on immunity and sleep in triathletes. METHODS: 21 triathletes were divided into two groups with different nutritional guidelines during a 3-week endurance training program including nine twice a day sessions with lowered (SL group) or maintained (CON group) glycogen availability during the overnight recovery period. In addition to performance tests, sleep was monitored every night. Systemic and mucosal immune parameters as well as the incidence of URTI were monitored every week of the training/nutrition protocol...
October 2016: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/27465696/story-behind-meldonium-from-pharmacology-to-performance-enhancement-a-narrative-review
#10
Wolfgang Schobersberger, Tobias Dünnwald, Günther Gmeiner, Cornelia Blank
Recent reports from the World Anti-Doping Agency (WADA) indicate an alarming prevalence in the use of meldonium among elite athletes. Therefore, in January 2016, meldonium was added to WADA's prohibited list after being monitored since 2015. Meldonium has been shown to have beneficial effects in cardiovascular, neurological and metabolic diseases due to its anti-ischaemic and cardioprotective properties, which are ascribed mainly to its inhibition of ß-oxidation and its activation of glycolysis. Despite its widespread use, there are only a few clinical studies or clinical trials available...
July 27, 2016: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/27430594/dosages-of-cold-water-immersion-post-exercise-on-functional-and-clinical-responses-a-randomized-controlled-trial
#11
A F Machado, A C Almeida, J K Micheletti, F M Vanderlei, M F Tribst, J Netto Junior, C M Pastre
Cold-water immersion (CWI) is one of the recovery techniques commonly used by athletes for post-exercise recovery. Nevertheless, the effects of CWI using different temperatures and the dose-response relationship of this technique have not yet been investigated. The aims of this study were to compare the effects of two strategies of CWI, using different water temperatures with passive recovery post exercise in the management of some markers of muscle damage, and to observe whether any of the techniques used caused deleterious effects on performance...
July 19, 2016: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/27368060/utility-of-the-multi-component-training-distress-scale-to-monitor-swimmers-during-periods-of-training-overload
#12
Luana C Main, Stuart A Warmington, Emily Korn, Paul B Gastin
The purpose of the present study was to determine the efficacy of the multi-component training distress scale (MTDS), in monitoring swimmers prior to national competition. Twenty-one national-level adolescent swimmers completed eight weeks of testing. Once a week participants completed an 8 × 50 m sprint test, vertical jump test, sit-and-reach test, the MTDS and the Recovery-Stress Questionnaire for Athletes (REST-Q). All testing was incorporated into the swimmers' normal training programme. The REST-Q accounted for the following variances in performance: flexibility (14...
July 2016: Research in Sports Medicine
https://www.readbyqxmd.com/read/27347865/exercise-and-the-athlete-with-infectious-mononucleosis
#13
Roy J Shephard
OBJECTIVE: To determine appropriate management of the active individual with infectious mononucleosis (IM), including issues of diagnosis, the determination of splenomegaly, and other measures of disease status, the relationship of the disease to chronic fatigue syndrome (CFS), and the risks of exercise at various points in the disease process. DATA SOURCES: An Ovid/MEDLINE search (January 1996-June 2015) was widely supplemented by "similar articles" found in Ovid/MEDLINE and PubMed, reference lists, and personal files...
June 22, 2016: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/27317976/muscle-mechanical-properties-of-strength-and-endurance-athletes-and-changes-after-one-week-of-intensive-training
#14
Rauno Álvaro de Paula Simola, Christian Raeder, Thimo Wiewelhove, Michael Kellmann, Tim Meyer, Mark Pfeiffer, Alexander Ferrauti
The study investigates whether tensiomyography (TMG) is sensitive to differentiate between strength and endurance athletes, and to monitor fatigue after either one week of intensive strength (ST) or endurance (END) training. Fourteen strength (24.1±2.0years) and eleven endurance athletes (25.5±4.8years) performed an intensive training period of 6days of ST or END, respectively. ST and END groups completed specific performance tests as well as TMG measurements of maximal radial deformation of the muscle belly (Dm), deformation time between 10% and 90% Dm (Tc), rate of deformation development until 10% Dm (V10) and 90% Dm (V90) before (baseline), after training period (post1), and after 72h of recovery (post2)...
October 2016: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/27285344/changes-in-sleep-quantity-and-efficiency-in-professional-rugby-union-players-during-home-based-training-and-match-play
#15
Alexander N Eagles, Dale I Lovell
BACKGROUND: Adequate sleep is paramount to athlete recovery and performance, however little is known about the typical sleep patterns of professional rugby union players during home based training and match play in the competitive season. The aim of the present study was to monitor changes in sleep quantity and efficiency of elite male rugby union players over a twelve-night period, which included training and two competitive matches. METHODS: A total of ten elite male rugby union players from a selected team, participated in the study...
May 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27170527/strength-measurements-in-acute-hamstring-injuries-intertester-reliability-and-prognostic-value-of-handheld-dynamometry
#16
Gustaaf Reurink, Gert Jan Goudswaard, Maarten H Moen, Johannes L Tol, Jan A N Verhaar, Adam Weir
Study Design Cohort study, repeated measures. Background Although hamstring strength measurements are used for assessing prognosis and monitoring recovery after hamstring injury, their actual clinical relevance has not been established. Handheld dynamometry (HHD) is a commonly used method of measuring muscle strength. The reliability of HHD has not been determined in athletes with acute hamstring injuries. Objectives To determine the intertester reliability and the prognostic value of hamstring HHD strength measurement in acute hamstring injuries...
August 2016: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/27139930/psycho-physiological-responses-to-repeated-sprint-training-in-normobaric-hypoxia-and-normoxia
#17
Franck Brocherie, Grégoire P Millet, Olivier Girard
PURPOSE: We compared psycho-physiological responses to six repeated-sprint sessions in normobaric hypoxia (RSH) and normoxia (RSN) in team-sport athletes during a 2-wk 'live high-train low' training camp. METHODS: While residing under normobaric hypoxia (≥14 h.d-1; FiO2 14.5-14.2%), twenty-three lowland elite field hockey players performed, in addition to their usual training, six sessions (4 × 5 × 5-s maximal sprints; 25 s passive recovery; 5 min rest) under either normobaric hypoxia (FiO2 ~14...
May 3, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27100319/a-submaximal-running-test-with-post-exercise-cardiac-autonomic-and-neuromuscular-function-in-monitoring-endurance-training-adaptation
#18
Ville Vesterinen, Ari Nummela, Tanja Laine, Esa Hynynen, Jussi Mikkola, Keijo Häkkinen
The aim of this study was to investigate whether a submaximal running test (SRT) with post-exercise heart rate recovery, heart rate variability and countermovement jump measurements could be used to monitor endurance training adaptation. Thirty-five endurance trained men and women completed an 18-week endurance training program. Maximal endurance performance and maximal oxygen uptake were measured every eight weeks. In addition, SRT with post-exercise heart rate recovery, heart rate variability and countermovement jump measurements were performed every four weeks...
April 19, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27050247/performance-analysis-of-surfing-a-review
#19
Oliver R L Farley, Chris R Abbiss, Jeremy M Sheppard
Despite the increased professionalism and substantial growth of surfing worldwide, there is limited information available to practitioners and coaches in terms of key performance analytics that are common in other field based sports. Indeed, research analyzing surfing performance is limited to a few studies examining male surfers' heart rates, surfing activities through time-motion analysis (TMA) using video recordings and Global Positioning Satellite (GPS) data during competition and recreational surfing. These studies have indicated that specific activities undertaken during surfing are unique with a variety of activities (i...
April 2, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27045502/sleep-as-a-strategy-for-optimizing-performance
#20
Angela M Yarnell, Patricia Deuster
Recovery is an essential component of maintaining, sustaining, and optimizing cognitive and physical performance during and after demanding training and strenuous missions. Getting sufficient amounts of rest and sleep is key to recovery. This article focuses on sleep and discusses (1) why getting sufficient sleep is important, (2) how to optimize sleep, and (3) tools available to help maximize sleep-related performance. Insufficient sleep negatively impacts safety and readiness through reduced cognitive function, more accidents, and increased military friendly-fire incidents...
2016: Journal of Special Operations Medicine: a Peer Reviewed Journal for SOF Medical Professionals
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