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Heart rate variability, training

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https://www.readbyqxmd.com/read/27920726/hrvanalysis-a-free-software-for-analyzing-cardiac-autonomic-activity
#1
Vincent Pichot, Frédéric Roche, Sébastien Celle, Jean-Claude Barthélémy, Florian Chouchou
Since the pioneering studies of the 1960s, heart rate variability (HRV) has become an increasingly used non-invasive tool for examining cardiac autonomic functions and dysfunctions in various populations and conditions. Many calculation methods have been developed to address these issues, each with their strengths and weaknesses. Although, its interpretation may remain difficult, this technique provides, from a non-invasive approach, reliable physiological information that was previously inaccessible, in many fields including death and health prediction, training and overtraining, cardiac and respiratory rehabilitation, sleep-disordered breathing, large cohort follow-ups, children's autonomic status, anesthesia, or neurophysiological studies...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27918705/whole-body-vibration-training-improves-heart-rate-variability-and-body-fat-percentage-in-obese-hispanic-postmenopausal-women
#2
Gregory Severino, Marcos Sanchez-Gonzalez, Michelle Walters-Edwards, Michael Nordvall, Oksana Chernykh, Jason Adames, Alexei Wong
The present study examined the effects of a 6-week whole body vibration training (WBVT) regimen on heart rate variability (HRV) and body composition in obese Hispanic postmenopausal women. Participants were randomly assigned to either WBVT (n=13) or non-exercising control group (n=14). HRV and body composition were measured before and after 6 weeks. There was a significant group x time interaction (P<0.05) for heart rate, sympathovagal balance and body fat percentage (BF%) such that all significantly decreased (P<0...
December 5, 2016: Journal of Aging and Physical Activity
https://www.readbyqxmd.com/read/27918668/the-influence-of-changes-in-acute-training-load-on-daily-sensitivity-of-morning-measured-fatigue-variables-in-elite-soccer-players
#3
Robin T Thorpe, Anthony J Strudwick, Martin Buchheit, Greg Atkinson, Barry Drust, Warren Gregson
PURPOSE: To determine the sensitivity of a range of potential fatigue measures to daily training load accumulated over the previous two, three and four days during a short in-season competitive period in elite senior soccer players (n=10). METHODS: Total high-speed running distance, perceived ratings of wellness (fatigue, muscle soreness, sleep quality), counter-movement jump height (CMJ), submaximal heart rate (HRex), post-exercise heart rate recovery (HRR) and heart rate variability (HRV: Ln rMSSD) were analysed during an in-season competitive period (17 days)...
December 5, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27907850/automated-annotation-and-quantitative-description-of-ultrasound-videos-of-the-fetal-heart
#4
Christopher P Bridge, Christos Ioannou, J Alison Noble
Interpretation of ultrasound videos of the fetal heart is crucial for the antenatal diagnosis of congenital heart disease (CHD). We believe that automated image analysis techniques could make an important contribution towards improving CHD detection rates. However, to our knowledge, no previous work has been done in this area. With this goal in mind, this paper presents a framework for tracking the key variables that describe the content of each frame of freehand 2D ultrasound scanning videos of the healthy fetal heart...
November 19, 2016: Medical Image Analysis
https://www.readbyqxmd.com/read/27901339/cardiac-parasympathetic-reactivation-after-small-sided-soccer-games-and-repeated-sprints-in-untrained-healthy-adolescents
#5
Amri Hammami, Sofien Kasmi, Narimen Yousfi, Marwa Bouamra, Zouhaier Tabka, Ezdine Bouhlel
BACKGROUND: It has been shown that recreational soccer was a highly motivating and social activity which produces large improvements in health-related indices in sedentary healthy and unhealthy subjects. The purpose of this study was to compare the acute parasympathetic reactivation after small-sided soccer games (SSG) and repeated sprints training (RST) sessions. METHODS: Eight post-pubertal untrained adolescents (age 15.8 ± 0.6 years, body mass 59.1 ± 3.7 kg, height 1...
November 30, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27896982/predictive-modeling-of-hospital-readmission-rates-using-electronic-medical-record-wide-machine-learning-a-case-study-using-mount-sinai-heart-failure-cohort
#6
Khader Shameer, Kipp W Johnson, Alexandre Yahi, Riccardo Miotto, L I Li, Doran Ricks, Jebakumar Jebakaran, Patricia Kovatch, Partho P Sengupta, Sengupta Gelijns, Alan Moskovitz, Bruce Darrow, David L David, Andrew Kasarskis, Nicholas P Tatonetti, Sean Pinney, Joel T Dudley
Reduction of preventable hospital readmissions that result from chronic or acute conditions like stroke, heart failure, myocardial infarction and pneumonia remains a significant challenge for improving the outcomes and decreasing the cost of healthcare delivery in the United States. Patient readmission rates are relatively high for conditions like heart failure (HF) despite the implementation of high-quality healthcare delivery operation guidelines created by regulatory authorities. Multiple predictive models are currently available to evaluate potential 30-day readmission rates of patients...
2016: Pacific Symposium on Biocomputing
https://www.readbyqxmd.com/read/27890479/heart-rate-variability-and-psychometric-responses-to-overload-and-tapering-in-collegiate-sprint-swimmers
#7
Andrew A Flatt, Bjoern Hornikel, Michael R Esco
OBJECTIVES: The purpose of this study was to evaluate cardiac-parasympathetic and psychometric responses to competition preparation in collegiate sprint-swimmers. Additionally, we aimed to determine the relationship between average vagal activity and its daily fluctuation during each training phase. DESIGN: Observational. METHODS: Ten Division-1 collegiate sprint-swimmers performed heart rate variability recordings (i.e., log transformed root mean square of successive RR intervals, lnRMSSD) and completed a brief wellness questionnaire with a smartphone application daily after waking...
November 17, 2016: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/27870943/longitudinal-monitoring-of-heartbeat-dynamics-predicts-mood-changes-in-bipolar-patients-a-pilot-study
#8
Claudio Gentili, Gaetano Valenza, Mimma Nardelli, Antonio Lanatà, Gilles Bertschy, Luisa Weiner, Mauro Mauri, Enzo Pasquale Scilingo, Pietro Pietrini
OBJECTIVES: Recent research indicates that Heart Rate Variability (HRV) is affected in Bipolar Disorders (BD) patients. To determine whether such alterations are a mere expression of the current mood state or rather contain longitudinal information on BD course, we examined the potential influence of states adjacent in time upon HRV features measured in a target mood state. METHODS: Longitudinal evaluation of HRV was obtained in eight BD patients by using a wearable monitoring system developed within the PSYCHE project...
November 12, 2016: Journal of Affective Disorders
https://www.readbyqxmd.com/read/27856807/paradoxical-dissociation-between-heart-rate-and-heart-rate-variability-following-different-modalities-of-exercise-in-individuals-with-metabolic-syndrome-the-resolve-study
#9
Gil Boudet, Guillaume Walther, Daniel Courteix, Philippe Obert, Bruno Lesourd, Bruno Pereira, Robert Chapier, Agnès Vinet, Alain Chamoux, Geraldine Naughton, Paul Poirier, Frédéric Dutheil
AIMS: To analyse the effects of different modalities of exercise training on heart rate variability (HRV) in individuals with metabolic syndrome (MetS). METHODS AND RESULTS: Eighty MetS participants (aged 50-70 years) were housed and managed in an inpatient medical centre for 21 days, including weekends. Physical activity and food intake/diet were intensively monitored. Participants were randomly assigned into three training groups, differing only by intensity of exercise: moderate-endurance-moderate-resistance (re), high-resistance-moderate-endurance (Re), and moderate-resistance-high-endurance (rE)...
November 17, 2016: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/27853886/home-based-isometric-exercise-training-induced-reductions-resting-blood-pressure
#10
Jonathan D Wiles, Natalie Goldring, Damian Coleman
PURPOSE: Isometric exercise training (IET) reduces resting blood pressure (BP). Most previous protocols impose exercise barriers which undermine its effectiveness as a potential physical therapy for altering BP. An inexpensive, home-based programme would promote IET as a valuable tool in the fight against hypertension. The aims of this study were: (a) to investigate whether home-based wall squat training could successfully reduce resting BP and (b) to explore the physiological variables that might mediate a change in resting BP...
November 16, 2016: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/27837041/acute-effects-of-resistance-exercise-with-continuous-and-intermittent-blood-flow-restriction-on-hemodynamic-measurements-and-perceived-exertion
#11
Gabriel R Neto, Jefferson S Novaes, Verônica P Salerno, Michel M Gonçalves, Bruna K L Piazera, Thais Rodrigues-Rodrigues, Maria S Cirilo-Sousa
This study compared the acute effects of low-intensity resistance exercise (RE) sessions for the upper limb with continuous and intermittent blood flow restriction (BFR) and high-intensity RE with no BFR on lactate, heart rate, double product (DP; heart rate times systolic blood pressure), and perceived exertion (RPE). Ten recreationally trained men (1-5 years strength training; age mean = 19 ± 0.82 years) performed three experimental protocols in random order: (a) low-intensity RE at 20% one-repetition maximum (1RM) with intermittent BFR (LI + IBFR), (b) low-intensity RE at 20% 1RM with continuous BFR (LI + CBFR), and (c) high-intensity RE at 80% 1RM...
November 11, 2016: Perceptual and Motor Skills
https://www.readbyqxmd.com/read/27829967/does-virtual-reality-based-kinect-dance-training-paradigm-improve-autonomic-nervous-system-modulation-in-individuals-with-chronic-stroke
#12
Luciana Maria Malosá Sampaio, Savitha Subramaniam, Ross Arena, Tanvi Bhatt
BACKGROUND: Physical inactivity and low resting heart rate variability (HRV) are associated with an increased cardiovascular deconditioning, risk of secondary stroke and mortality. Aerobic dance is a multidimensional physical activity and recent research supports its application as a valid alternative cardiovascular training. Furthermore, technological advances have facilitated the emergence of new approaches for exercise training holding promise, especially those methods that integrate rehabilitation with virtual gaming...
October 2016: Journal of Vascular and Interventional Neurology
https://www.readbyqxmd.com/read/27828571/factors-associated-with-negative-self-rated-health-among-non-institutionalized-elderly-in-montes-claros-brazil
#13
Sarah Magalhães Medeiros, Lorena Santos Rocha Silva, Jair Almeida Carneiro, Gizele Carmen Fagundes Ramos, Ana Teresa Fernandes Barbosa, Antônio Prates Caldeira
This study aimed to obtain an understanding of the self-rated health among community-dwelling elderly people in the north of Minas Gerais, identifying factors associated with negative self-rated health. We conducted a population-based cross-sectional study with two-stage random sampling. Data collection was carried out in the home of elderly people by trained staff who used questionnaires that had already been validated. To identify the variables associated with negative self-rated health, bivariate analyses were performed, followed by Poisson regression analysis...
November 2016: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/27826398/four-weeks-of-supplementation-with-isolated-soy-protein-attenuates-exercise-induced-muscle-damage-and-enhances-muscle-recovery-in-well-trained-athletes-a-randomized-trial
#14
Shweta Shenoy, Mrinal Dhawan, Jaspal Singh Sandhu
BACKGROUND: The effects of consumption of isolated soy protein (ISP) for a chronic period (4 weeks) on exercise induced muscle damage (EIMD) in athletic population have never been explored. OBJECTIVES: To examine the effects of ISP on muscle damage indices elicited via a bout of damaging exercise. PATIENTS AND METHODS: Forty males (20 boxers, 20 cyclists) aged 18 - 28 years were randomly assigned to two groups (ISP and Placebo) (n = 20). All participants who engaged themselves in specific, regular training of 30 hours a week during the competitive season were included in the study...
September 2016: Asian Journal of Sports Medicine
https://www.readbyqxmd.com/read/27822090/the-danish-heart-failure-registry
#15
REVIEW
Inge Schjødt, Anne Nakano, Kenneth Egstrup, Charlotte Cerqueira
AIM OF DATABASE: The aim of the Danish Heart Failure Registry (DHFR) is to monitor and improve the care of patients with incident heart failure (HF) in Denmark. STUDY POPULATION: The DHFR includes inpatients and outpatients (≥18 years) with incident HF. Reporting to the DHFR is mandatory for the Danish hospital departments treating patients with incident HF. Final decision to register a patient in the DHFR is made by a cardiologist to ensure the validity of the diagnosis...
2016: Clinical Epidemiology
https://www.readbyqxmd.com/read/27820606/survival-rates-following-pediatric-in-hospital-cardiac-arrests-during-nights-and-weekends
#16
Farhan Bhanji, Alexis A Topjian, Vinay M Nadkarni, Amy H Praestgaard, Elizabeth A Hunt, Adam Cheng, Peter A Meaney, Robert A Berg
Importance: Nearly 6000 hospitalized children in the United States receive cardiopulmonary resuscitation (CPR) annually. Little is known about whether the survival of these children is influenced by the time of the event (eg, nighttime or weekends). Differences in survival could have important implications for hospital staffing, training, and resource allocation. Objective: To determine whether outcomes after pediatric in-hospital cardiac arrests differ during nights and weekends compared with days/evenings and weekdays...
November 7, 2016: JAMA Pediatrics
https://www.readbyqxmd.com/read/27813393/the-effect-of-a-short-term-training-period-on-physiological-parameters-and-running-performance-intensity-distribution-versus-constant-intensity-exercise
#17
Vicente J Clemente-Suárez, Athanasios A Dalamitros, Pantelis T Nikolaidis
BACKGROUND: This study compared the effect of two training strategies differing on the weekly intensity distribution on physiological parameters and running performance in moderately trained endurance athletes. METHODS: Thirty male athletes were equally divided into three groups, one following an increasing weekly aerobic intensity distribution (EXP1), one with constant weekly aerobic intensitydistribution (EXP2) and a control one, following a freely chosen program (CON)...
November 4, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27813392/physical-and-physiological-differences-of-backs-and-forwards-from-the-brazilian-national-rugby-union-team
#18
Fábio Y Nakamura, Lucas A Pereira, José E Moraes, Ronaldo Kobal, Katia Kitamura, Cesar C Cal Abad, Luís M Teixeira Vaz, Irineu Loturco
BACKGROUND: The aim of this study was to compare backs and forwards rugby union players recruited to a National team in the following physical and physiological indicators: anthropometrics, squat jump (SJ), countermovement jump (CMJ), 10- and 30-m sprint, resting heart rate variability (HRV), Yo-Yo test and heart rate (HR) at 2-min of test. METHODS: The measurements were performed on the first day of a training camp planned to finely select the players who would participate in the 2016 America's Rugby Championship...
November 4, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27806014/a-performance-analysis-of-a-stand-up-paddle-board-marathon-race
#19
AProf Ben Schram, Prof Wayne Hing, AProf Mike Climstein, AProf James 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, 4 female) were recruited from the Stand Up Paddle Surfing Association of Australia to have their race performance in the Australian Titles analyzed...
October 28, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27798030/the-screen-icd-trial-screening-for-anxiety-and-cognitive-therapy-intervention-for-patients-with-implanted-cardioverter-defibrillator-icd-a-randomised-controlled-trial-protocol
#20
Selina Kikkenborg Berg, Margrethe Herning, Jesper Hastrup Svendsen, Anne Vinggaard Christensen, Lau Caspar Thygesen
INTRODUCTION: Previous research shows that patients with an implanted cardioverter defibrillator (ICD) have a fourfold increased mortality risk when suffering from anxiety compared with ICD patients without anxiety. This research supports the screening of ICD patients for anxiety with the purpose of starting relevant intervention. METHODS AND ANALYSIS: Screen-ICD consists of 3 parts: (1) screening of all hospitalised and outpatient patients at two university hospitals using the Hospital Anxiety and Depression Scale (HADS), scores ≥8 are invited to participate...
October 21, 2016: BMJ Open
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