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Heart rate variability, training

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https://www.readbyqxmd.com/read/28634456/absolute-and-relative-training-load-and-its-relation-to-fatigue-in-football
#1
Unai Zurutuza, Julen Castellano, Ibon Echeazarra, David Casamichana
The aim of the study was to assess the relationship of external and internal training load (TL) indicators with the objective and subjective fatigue experienced by 15 semi-professional football players, over eight complete weeks of the competition period in the 2015-2016 season, which covered microcycles from 34th to 41st. The maximum heart rate (HRmax) and maximum speed (Vmax) of all the players were previously measured in specific tests. The TL was monitored via questionnaires on rating of perceived exertion (RPE), pulsometers and GPS devices, registering the variables: total distance (TD), player load 2D (PL2D), TD at >80% of the Vmax (TD80), TD in deceleration at < -2 m⋅sec-2 (TDD <-2), TD in acceleration >2 m⋅sec(-2) (TDA >2), Edwards (ED), time spent at between 50 and 80% (50-80% HRmax), 80-90% (80-90% HRmax), and >90% of the HRmax (>90% HRmax), and RPE both respiratory/thoracic (RPEres) and leg/muscular (RPEmus)...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28630583/acute-modification-of-cardiac-autonomic-function-of-high-intensity-interval-training-in-collegiate-male-soccer-players-with-different-chronotype-a-cross-over-study
#2
Matteo Bonato, Luca Agnello, Letizia Galasso, Angela Montaruli, Eliana Roveda, Giampiero Merati, Antonio La Torre, Jacopo A Vitale
The purpose of this study was to evaluate if the time of the day (8.00 a.m. vs 8.00 p.m.) and chronotype could influence autonomic cardiac control in soccer players in relation to an acute session of high-intensity interval training. The morningness-eveningness questionnaire was administered to recruit Morning-type and Evening-type collegiate male soccer players. Therefore, 24 players (12 Morning-types and 12 Evening-types) were randomly assigned, to either morning (n = 12; age 23 ± 3 years; height 1.75 ± 0...
June 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28630575/acute-and-post-exercise-physiological-responses-to-high-intensity-interval-training-in-endurance-and-sprint-athletes
#3
Lukas Cipryan, Gerhard Tschakert, Peter Hofmann
The purpose of the presented study was to compare acute and post-exercise differences in cardiorespiratory, metabolic, cardiac autonomic, inflammatory and muscle damage responses to high-intensity interval exercise (HIIT) between endurance and sprint athletes. The study group consisted of sixteen highly-trained males (age 22.1 ± 2.5 years) participating in endurance (n = 8) or sprint (n = 8) sporting events. All the participants underwent three exercise sessions: short HIIT (work interval duration 30s), long HIIT (3min) and constant load exercise (CE)...
June 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28627034/brief-mindfulness-meditation-group-training-in-aphasia-exploring-attention-language-and-psychophysiological-outcomes
#4
Rebecca Shisler Marshall, Jacqueline Laures-Gore, Kim Love
BACKGROUND: Stroke is currently the leading cause of long-term disability in adults in the United States. There is a need for accessible, low-cost treatments of stroke-related disabilities such as aphasia. AIMS: To explore an intervention for aphasia utilizing mindfulness meditation (MM). This preliminary study examines the feasibility of teaching MM to individuals with aphasia. Since physiological measures have not been collected for those with aphasia, the study was also an exploration of the potential attention, language and physiological changes after MM in adults with aphasia during a brief, daily group training...
June 19, 2017: International Journal of Language & Communication Disorders
https://www.readbyqxmd.com/read/28614162/validity-of-heart-rate-based-indices-to-measure-training-load-and-intensity-in-elite-football-players
#5
Pedro Silva, Eduardo Dos Santos, Mikhail Grishin, José Mário Rocha
This study aimed to identify the most sensible heart rate-based indices to physical measures of training load and intensity. Twenty professional football players competing in the Russian league and in the UEFA Champions League were monitored during 15 training sessions (270 individual records) using GPS devices (10 Hz) and heart rate telemetry. Expert knowledge and a collinearity r < .5 were used initially to select the external physical markers for the final analysis. A multivariate-adjusted within-subjects model was employed to quantify the correlations between heart rate indices with various measures of training intensity and load...
June 12, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28605245/biofeedback-in-grandmothers-raising-grandchildren-evaluating-intervention-parameters
#6
Jaclene Zauszniewski, Carol Musil, Kayla Herbell, Sarah Givens
This study examined the six critical parameters for evaluating interventions, including necessity, acceptability, feasibility, safety, fidelity, and effectiveness, of a heart rate variability (HRV) biofeedback training intervention in a sample of 20 grandmothers who were the primary caregivers of their grandchildren. After the grandmothers completed the HRV biofeedback training, they answered open-ended questions to provide data on the six parameters during face-to-face interviews. The findings of the study provided evidence for the necessity, acceptability, feasibility, safety, fidelity, and effectiveness of the HRV biofeedback intervention for reducing the stress experienced by grandmothers in raising their grandchildren...
June 2017: Issues in Mental Health Nursing
https://www.readbyqxmd.com/read/28580025/using-a-computer-simulation-to-improve-psychological-readiness-for-job-interviewing-in-unemployed-individuals-of-pre-retirement-age
#7
Rimma M Aysina, Galina I Efremova, Zhanna A Maksimenko, Mikhail V Nikiforov
Unemployed individuals of pre-retirement age face significant challenges in finding a new job. This may be partly due to their lack of psychological readiness to go through a job interview. We view psychological readiness as one of the psychological attitude components. It is an active conscious readiness to interact with a certain aspect of reality, based on previously acquired experience. It includes a persons' special competence to manage their activities and cope with anxiety. We created Job Interview Simulation Training (JIST) - a computer-based simulator, which allowed unemployed job seekers to practice interviewing repeatedly in a stress-free environment...
May 2017: Europe's journal of psychology
https://www.readbyqxmd.com/read/28573597/effect-of-heart-rate-variability-biofeedback-on-sport-performance-a-systematic-review
#8
REVIEW
Sergio Jiménez Morgan, José Arturo Molina Mora
Aim is to determine if the training with heart rate variability biofeedback allows to improve performance in athletes of different disciplines. Methods such as database search on Web of Science, SpringerLink, EBSCO Academic Search Complete, SPORTDiscus, Pubmed/Medline, and PROQUEST Academic Research Library, as well as manual reference registration. The eligibility criteria were: (a) published scientific articles; (b) experimental studies, quasi-experimental, or case reports; (c) use of HRV BFB as main treatment; (d) sport performance as dependent variable; (e) studies published until October 2016; (f) studies published in English, Spanish, French or Portuguese...
June 1, 2017: Applied Psychophysiology and Biofeedback
https://www.readbyqxmd.com/read/28557670/validity-and-reliability-of-the-moxy-oxygen-monitor-during-incremental-cycling-exercise
#9
E M Crum, W J O'Connor, L Van Loo, M Valckx, S R Stannard
INTRODUCTION: The Moxy is a novel, cutaneously placed muscle oxygen monitor which claims to measure local oxygen saturation (SmO2) and total haemoglobin (THb) using near-infrared spectroscopy. If shown to be reliable, its data storage and telemetric capability will be useful for assessing localised O2 usage during field-based exercise. This study investigated the reliability of the Moxy during cycling and assessed the correlations between its measurements, whole-body O2 consumption (VO2) and heart rate (HR)...
May 30, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28542318/predicting-congenital-heart-defects-a-comparison-of-three-data-mining-methods
#10
Yanhong Luo, Zhi Li, Husheng Guo, Hongyan Cao, Chunying Song, Xingping Guo, Yanbo Zhang
Congenital heart defects (CHD) is one of the most common birth defects in China. Many studies have examined risk factors for CHD, but their predictive abilities have not been evaluated. In particular, few studies have attempted to predict risks of CHD from, necessarily unbalanced, population-based cross-sectional data. Therefore, we developed and validated machine learning models for predicting, before and during pregnancy, women's risks of bearing children with CHD. We compared the results of these models in a large-scale, comprehensive population-based retrospective cross-sectional epidemiological survey of birth defects in six counties in Shanxi Province, China, covering 2006 to 2008...
2017: PloS One
https://www.readbyqxmd.com/read/28538304/a-performance-analysis-of-a-stand-up-paddle-board-marathon-race
#11
Ben L Schram, Wayne A Hing, Mike Climstein, James W Furness
Stand-up paddle boarding (SUP) is a rapidly growing sport and recreational activity in which little scientific research exists. A review of the literature failed to identify a single article pertaining to the physiological demands of SUP competition. The purpose of this study was to conduct a performance analysis of a national-level SUP marathon race. Ten elite SUP athletes (6 male and 4 female athletes) were recruited from the Stand Up Paddle Surfing Association of Australia to have their race performance in the Australian Titles analyzed...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28531328/factors-associated-with-compliance-to-aha-acc-performance-measures-in-a-myocardial-infarction-system-of-care-in-brazil
#12
Maria Letícia L Lana, Andrea Z Beaton, Luisa C C Brant, Isadora C R S Bozzi, Osias de Magalhães, Luiz Ricardo de A Castro, Francisco César T da Silva Júnior, José Luiz P da Silva, Antonio Luiz P Ribeiro, Bruno R Nascimento
Objective: To evaluate compliance with American Heart Association/American College of Cardiology (AHA/ACC) performance measures for adults with acute myocardial infarction (AMI) and to investigate the factors associated with compliance, in an AMI System of Care in Brazil. Design: Observational longitudinal study. Setting: A high-complexity University Hospital, part of the AMI System of Care implemented in Belo Horizonte, Brazil, in 2010. Participants: Of note, 1129 patients with ST-elevation myocardial infarction (STEMI) and non-ST-elevation myocardial infarction (NSTEMI) admitted to a single center over 36 months (between 2011 and 2014)...
May 20, 2017: International Journal for Quality in Health Care
https://www.readbyqxmd.com/read/28528435/benefits-of-a-regular-vs-irregular-rhythm-based-training-programme-on-physical-fitness-and-motor-skills-in-obese-girls
#13
Ghazi Racil, Wassim Elmontassar, Imen Rommene, Claire Tourny, Anis Chaouachi, Jeremy B Coquart
PURPOSE: The aim of the current study was to examine the impact of a physical exercise programme including rhythmic elements (regular and irregular tempos) on physiological variables, motor skills (MS), and jump performances in obese girls. METHODS: Thirty-six obese girls (age: 10.4 ± 0.9 years, body mass: 58.7 ± 4.0 kg, height: 1.37 ± 0.04 m, body mass index: 31.2 ± 2.1) participated in three weekly physical exercise sessions for 6 weeks, with each session consisting of basic fundamental locomotor movements...
May 20, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28505992/the-influence-of-a-constraint-and-bimanual-training-program-using-a-variety-of-modalities-on-endurance-and-on-the-cardiac-autonomic-regulation-system-of-children-with-unilateral-cerebral-palsy-a-self-control-clinical-trial
#14
Marilyn Cohen-Holzer, Gilad Sorek, Maayan Schweizer, Michal Katz-Leurer
BACKGROUND: An intensive hybrid program, combining constraint with bimanual training, improves upper extremity function as well as walking endurance of children with unilateral cerebral palsy (UCP). Endurance improvement may be associated with the cardiac autonomic regulation system (CARS) adaptation, known to be impaired among these children. OBJECTIVE: To examine the influence of an intensive hybrid program on CARS, walking endurance and the correlation with upper extremity function of children with UCP...
May 11, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28501968/effect-of-parachute-jump-in-the-psychophysiological-response-of-soldiers-in-urban-combat
#15
Joaquín Sánchez-Molina, José J Robles-Pérez, Vicente J Clemente-Suárez
The study of organic and psychological response during combat situations has been poorly reported despite its importance for soldiers training and specific instruction, so it was proposed as aim of the present investigation to analyze the effect of a tactical parachute simulated jump in psycho-physiological response of paratroopers' warfighters during an urban combat simulation. 19 male paratroopers (31.9 ± 6.2 year old; 173.6 ± 5.3 cm; 73.8 ± 8.3 Kg) of the Spanish Army were divided in two groups: parachute jump group (n:11) that conducted a simulated parachute jump and a urban combat maneuver and a non-parachute jump group (n:8) that only conducted an urban combat maneuver...
June 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28480859/the-effects-of-non-functional-overreaching-and-overtraining-on-autonomic-nervous-system-function-in-highly-trained-athletes
#16
T Kajaia, L Maskhulia, K Chelidze, V Akhalkatsi, Z Kakhabrishvili
Aim of the study was to compare the ANS functioning, as measured by heart rate variability (HRV), in athletes with non-functional overreaching (NFO) and overtraining syndrome (OTS) and in athletes without NFO/OTS. In 43 athletes with NFO/OTS, 40 athletes without NFO/OTS, as well as in 35 sedentary subjects the ANS function was evaluated with the Autonomic Balance Test, based on the HRV analysis of resting heart rate recordings. Results of the study show lower HRV and lower vagal influence along with increased sympathetic cardiovascular control in athletes with non-functional overreaching and particularly in athletes with overtraining, than in highly trained athletes without NFO/OTS...
March 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28479953/effects-of-simulated-altitude-on-maximal-oxygen-uptake-and-inspiratory-fitness
#17
Nicole C Biggs, Benjamin S England, Nicole J Turcotte, Melissa R Cook, Alyne L Williams
Aerobic exercise at altitude has shown an increase in maximal oxygen uptake. Similar effects have been replicated by way of simulated altitude training, which have influenced various advances in the field of exercise science. Elevation Training Masks© (ETM) claim to stimulate cardiorespiratory fitness improvements similar to training at altitude, however, there is little research to support this claim. The purpose of this study was to research the effect that a hypoxia-inducing mask would have on cardiorespiratory fitness and pulmonary function through the use of a high intensity interval training (HIIT) running program...
2017: International Journal of Exercise Science
https://www.readbyqxmd.com/read/28479948/assessing-energy-level-as-a-marker-of-aerobic-exercise-readiness-a-pilot-investigation
#18
Kelley Strohacker, William R Boyer, Kayla N Smitherman, Emily Cornelius, Daniel Fazzino
Energy ratings have been used as a marker of exercise readiness (i.e. pre-exercise physical/mental state indicating ability to perform) within flexible nonlinear periodization (FNLP)-based resistance training interventions. However, empirical data is lacking regarding the utility of this approach for aerobic exercise. The purpose of this study was to examine the ability of pre-exercise energy level to predict affective and behavioral responses to prescribed aerobic exercise. Participants consisted of 19 women and 8 men (N=27, age=20±4 years, estimated maximal oxygen uptake=37±6)...
2017: International Journal of Exercise Science
https://www.readbyqxmd.com/read/28478782/the-effect-of-heart-rate-variability-biofeedback-training-on-stress-and-anxiety-a-meta-analysis
#19
V C Goessl, J E Curtiss, S G Hofmann
BACKGROUND: Some evidence suggests that heart rate variability (HRV) biofeedback might be an effective way to treat anxiety and stress symptoms. To examine the effect of HRV biofeedback on symptoms of anxiety and stress, we conducted a meta-analysis of studies extracted from PubMed, PsycINFO and the Cochrane Library. METHODS: The search identified 24 studies totaling 484 participants who received HRV biofeedback training for stress and anxiety. We conducted a random-effects meta-analysis...
May 8, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28474988/premedication-with-fentanyl-midazolam-improves-sevoflurane-anesthesia-for-surgical-intervention-in-laboratory-mice
#20
Miriam Lipiski, Margarete Arras, Paulin Jirkof, Nikola Cesarovic
Balanced anesthesia allows for a reduced dosage of each component, while inducing general anesthesia of sufficient depth with potentially fewer side effects. Here, we compare two anesthetic protocols combining sevoflurane anesthesia with pre-medication (ketamine [K] or fentanyl-midazolam [FM]) to a sevoflurane monoanesthesia (S) concerning their ability to provide reliable anesthesia suitable for moderate surgery in laboratory mice. Twenty-one female C57BL/6J mice assigned randomly to one of three protocols underwent a 50-min anesthesia and a sham embryo transfer...
January 1, 2017: Experimental Biology and Medicine
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