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Heart rate variability, performance, athlete

Noortje H Rijken, Remko Soer, Ewold de Maar, Hilco Prins, Wouter B Teeuw, Jan Peuscher, Frits G J Oosterveld
The aim of this pilot study was to investigate the effects of an intervention consisting of mental coaching combined with either electro encephalogram (EEG) alpha power feedback or heart rate variability (HRV) feedback on HRV, EEG outcomes and self-reported factors related to stress, performance, recovery and sleep quality in elite athletes. A prospective pilot study was performed with two distinct cohorts. Soccer players were provided with four sessions of mental coaching combined with daily HRV biofeedback (Group A); track and field athletes were provided with four sessions of mental coaching in combination with daily neurofeedback (Group B)...
October 19, 2016: Applied Psychophysiology and Biofeedback
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
Michael C Zourdos, Caleb D Bazyler, Edward Jo, Andy V Khamoui, Bong-Sup Park, Sang-Rok Lee, Lynn B Panton, Jeong-Su Kim
PURPOSE: The purpose of this investigation was to examine the effects of a submaximal running warm-up on running performance in male endurance athletes (n = 16, Mage = 21 ± 2 years, MVO2max = 69.3 ± 5.1 mL/kg/min). METHOD: Endurance performance was determined by a 30-min distance trial after control and submaximal running warm-up conditions in a randomized crossover fashion. The warm-up began with 5 min of quiet sitting, followed by 6 min of submaximal running split into 2-min intervals at speeds corresponding to 45%, 55%, and 65% maximal oxygen consumption (VO2max)...
September 16, 2016: Research Quarterly for Exercise and Sport
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
Georgios A Christou, Evangelia J Kouidi, Maria A Anifanti, Panagiota G Sotiriou, Nikolaos A Koutlianos, Asterios P Deligiannis
OBJECTIVE: The investigation of the differences in orthostatic responses of individuals with a history of noncardiac syncope(NCS) between athletes and nonathletes. METHODS: A passive tilt test for 30min was performed in 133 athletes (54 with NCS, 79 without NCS) and 48 nonathletes (15 with NCS, 33 without NCS). We performed measurement of haemodynamic, heart rate variability and baroreflex sensitivity parameters. All comparisons were adjusted for age, gender and body mass index(BMI)...
August 21, 2016: International Journal of Cardiology
Alessandro Piras, Giorgio Gatta
The aim of this investigation was to evaluate the recovery pattern of a whole body compression garment on hemodynamic parameters and on ANS activity following a swimming performance. Ten young male athletes were recruited and tested in two different days, with and without wearing the garment during the recovery phase. After a warm-up of 15 minutes, athletes were instructed to perform a maximal 400m freestyle swimming event, and then time series of beat-to-beat intervals for heart rate variability (HRV), baroreflex sensitivity (BRS), and hemodynamic parameters were recorded for 90 minutes of recovery...
August 19, 2016: Journal of Strength and Conditioning Research
I Martínez-Navarro, O Chiva-Bartoll, B Hernando, E Collado, V Porcar, C Hernando
PURPOSE: The present study aimed to explore whether Blood Pressure (BP) and Heart Rate Variability (HRV) responsiveness to orthostatism, jointly with Executive Function (EF) performance, were diminished following an ultraendurance mountain race. Besides, we wanted to assess whether hydration status was related to either performance or the abovementioned alterations. METHODS: Fifty recreational ultraendurance athletes participating in the Penyagolosa Trails CSP115 race (118 km and a total positive elevation of 5439 m) were evaluated before and after the competition...
August 18, 2016: Journal of Strength and Conditioning Research
Domingo Jesús Ramos-Campo, Vicente Ávila-Gandía, Fernando Alacid, Fulgencio Soto-Méndez, Pedro E Alcaraz, Francisco Javier López-Román, Jacobo Ángel Rubio-Arias
The biological response to ultra-endurance mountain race events is not yet well understood. The aim of this study was to determine the biochemical and physiological changes after performing an ultra-endurance mountain race in runners. We recruited 11 amateur runners (age: 29.7 ± 10.2 years; height: 179.7 ± 5.4 cm; body mass: 76.7 ± 10.3 kg). Muscle damage, lactate concentration, energy balance, rating of perceived exertion (RPE), heart rate (HR), heart rate variability (HRV), body composition changes, and jump performance were analyzed before, during (only lactate, HR, and HRV), and after the race...
August 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
Julie Stang, Trine Stensrud, Petter Mowinckel, Kai-Hakon Carlsen
PURPOSE: High prevalence of asthma and bronchial hyperresponsiveness (BHR) are reported in swimmers and cross-country skiers. It has been suggested that increased parasympathetic nervous activity is involved in asthma development in endurance athletes. We aimed to assess the associations of BHR to parasympathetic activity in healthy and asthmatic swimmers and cross-country skiers, and healthy non-athletes. METHODS: Parasympathetic activity was measured by pupillometry and heart rate variability (HRV) at the onset of exercise with the cardiac vagal index (CVI) calculated, in 28 cross-country skiers (♂18/♀10), 29 swimmers (♂17/♀12), and 30 healthy non-athletes controls (♂14/♀16) on two different days...
June 9, 2016: Medicine and Science in Sports and Exercise
Orsolya Kiss, Nóra Sydó, Péter Vargha, Hajnalka Vágó, Csilla Czimbalmos, Eszter Édes, Endre Zima, Györgyi Apponyi, Gergő Merkely, Tibor Sydó, Dávid Becker, Thomas G Allison, Béla Merkely
OBJECTIVE: Heart rate variability (HRV) analysis has been used to evaluate patients with various cardiovascular diseases. While the vast majority of HRV studies have focused on pathological states, our study focuses on the less explored area of HRV analysis across different training intensity and sports. We aimed to measure HRV in healthy elite and masters athletes and compare to healthy, but non-athletic controls. METHODS: Time-domain HRV analysis was applied in 138 athletes (male 110, age 28...
August 2016: Clinical Autonomic Research: Official Journal of the Clinical Autonomic Research Society
I Kvachadze, A Tsibadze, G Sanadiradze, D Mzhavanadze, G Chichinadze
The aim of the study was to evaluate the vegetative regulatory action in healthy, untrained and trained individuals in different geomagnetic conditions. The study involved 94 healthy untrained young men aged 18-22 years - I group (control), and 60 trained volunteers aged 18-25 years - II group, who during the period of the study and for at least three years prior have been following active regular physical exercise regimen(weight lifting), but were not professional athletes. In order to evaluate the heart rate variability the following statistical indicators were studied: arithmetic mean, the arithmetic mean of the error variance, dispersion, the arithmetic mean deviation, coefficient of skewness, kurtosis, standard deviation of the mean...
April 2016: Georgian Medical News
Fábio Y Nakamura, Lucas A Pereira, Michael R Esco, Andrew A Flatt, José E Moraes, Cesar C Cal Abad, Irineu Loturco
The aim of this study was to examine the intra-day and inter-day reliability of ultra-short-term vagal-related heart rate variability (HRV) in elite rugby union players. Forty players from the Brazilian National Rugby Team volunteered to participate in this study. The natural log of the root mean square of successive RR interval differences (lnRMSSD) assessments were performed on four different days. HRV was assessed twice (intra-day reliability) on the first day and once per day on the following three days (inter-day reliability)...
May 25, 2016: Journal of Strength and Conditioning Research
Roland van den Tillaar, Tormod Vatten, Erna von Heimburg
The aim of the study was to compare the effects of a long warm-up (general + specific) and a short warm-up (specific) on intermediate running performance (3-min run). Thirteen experienced endurance-trained athletes (age 23.2 ± 2.3 yr, body mass 79.8 ± 8.2 kg, body height 1.82 ± 0.05 m) conducted two types of warm-ups in a cross-over design with one week in between: a long warm-up (10 min, 80% maximal heart rate, and 8x60 m sprint with increasing intensity and 1 min rest in between) and a short warm-up (8x60 m sprint with increasing intensity and 1 min rest in between)...
May 14, 2016: Journal of Strength and Conditioning Research
B Cunniffe, M Ellison, M Loosemore, M Cardinale
This study evaluated the performance impact of routine warm-up strategies in elite Olympic amateur boxing athletes and physiological implications of the GAP between warm-up and boxing activity. Six male boxers were assessed while performing standardised pre-fight warm-up routines. Core and skin temperature measurements (Tcore and Tskin), heart-rate (HR), and upper and lower body power-output (PO) were assessed before and following warm-up, during a 25 min GAP and after 3 x 2 min rounds of sparring. Reflected temperature (Tc) was also determined using high-resolution thermal images at fixed time-points to explore avenues for heat loss...
May 14, 2016: Journal of Strength and Conditioning Research
Erşan Arslan, Dicle Aras
[Purpose] The aim of this study was to compare the body composition, heart rate variability, and aerobic and anaerobic performance between competitive cyclists and triathletes. [Subjects] Six cyclists and eight triathletes with experience in competitions voluntarily participated in this study. [Methods] The subjects' body composition was measured with an anthropometric tape and skinfold caliper. Maximal oxygen consumption and maximum heart rate were determined using the incremental treadmill test. Heart rate variability was measured by 7 min electrocardiographic recording...
April 2016: Journal of Physical Therapy Science
Jin-Guo Dong
Heart rate variability (HRV) is a relevant marker reflecting cardiac modulation by sympathetic and vagal components of the autonomic nervous system (ANS). Although the clinical application of HRV is mainly associated with the prediction of sudden cardiac death and assessing cardiovascular and metabolic illness progression, recent observations have suggested its applicability to physical exercise training. HRV is becoming one of the most useful tools for tracking the time course of training adaptation/maladaptation of athletes and in setting the optimal training loads leading to improved performances...
May 2016: Experimental and Therapeutic Medicine
D Matelot, F Schnell, G Kervio, C Ridard, N Thillaye du Boullay, M Wilson, F Carre
It is unknown whether commencing structured endurance training after 40 years of age is powerful enough to induce beneficial cardiovascular adaptations in later life. 34 men between the ages of 55 and 75 were included: 10 life-long sedentary seniors (SED), 13 endurance master athletes who commenced training≤30 years of age (ET30), and 11 endurance master athletes who commenced training≥40 years of age with no prior physical training (ET40). All performed resting 5-min spectral heart rate (HR) variability analysis, resting and submaximal-exercise echocardiography, and a maximal exercise test...
July 2016: International Journal of Sports Medicine
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
Tatiane Piucco, Jessica O'Connell, Darren Stefanyshyn, Ricardo D de Lucas
The aim of this study was to investigate the effect of stage duration (Long-stage-LS: 3-min, Short-stage-SS: 1-min) on maximal and submaximal aerobic physiological variables during a simulated skating test performed on a slide board. Ten well-trained male speed skaters performed two maximal incremental tests on slide board until voluntary exhaustion. The second ventilatory threshold (VT2) was determined by the ventilatory equivalent method. All participants reached the criteria for maximal oxygen uptake (VO2max) attainment in both protocols...
March 1, 2016: Journal of Strength and Conditioning Research
Sam S Wu, Jeremiah J Peiffer, Peter Peeling, Jeanick Brisswalter, Wing Y Lau, Kazunori Nosaka, Chris R Abbiss
PURPOSE: The purpose of this study was to investigate the effect of three swim pacing profiles on subsequent performance during a sprint distance triathlon (SDT). METHODS: Nine competitive/trained male triathletes completed five experimental sessions, including a graded running exhaustion test, a 750 m swim time-trial (STT), and three SDTs. The swim time of the three SDTs were matched, but pacing was manipulated to induce positive (i.e. speed gradually decreasing from 92 to 73% STT), negative (i...
February 26, 2016: International Journal of Sports Physiology and Performance
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