An Overview of Heart Rate Variability Metrics and Norms.
Fred Shaffer,Jay P. Ginsberg +1 more
TLDR
Current perspectives on the mechanisms that generate 24 h, short-term (<5 min), and ultra-short-term HRV are reviewed, and the importance of HRV, and its implications for health and performance are reviewed.Abstract:
Healthy biological systems exhibit complex patterns of variability that can be described by mathematical chaos. Heart rate variability (HRV) consists of changes in the time intervals between consecutive heartbeats called interbeat intervals (IBIs). A healthy heart is not a metronome. The oscillations of a healthy heart are complex and constantly changing, which allow the cardiovascular system to rapidly adjust to sudden physical and psychological challenges to homeostasis. This article briefly reviews current perspectives on the mechanisms that generate 24 h, short-term (~5 min), and ultra-short-term (<5 min) HRV, the importance of HRV, and its implications for health and performance. The authors provide an overview of widely-used HRV time-domain, frequency-domain, and non-linear metrics. Time-domain indices quantify the amount of HRV observed during monitoring periods that may range from ~2 min to 24 h. Frequency-domain values calculate the absolute or relative amount of signal energy within component bands. Non-linear measurements quantify the unpredictability and complexity of a series of IBIs. The authors survey published normative values for clinical, healthy, and optimal performance populations. They stress the importance of measurement context, including recording period length, subject age, and sex, on baseline HRV values. They caution that 24 h, short-term, and ultra-short-term normative values are not interchangeable. They encourage professionals to supplement published norms with findings from their own specialized populations. Finally, the authors provide an overview of HRV assessment strategies for clinical and optimal performance interventions.read more
Citations
More filters
Journal ArticleDOI
Longitudinal change of cardiac electrical and autonomic function and potential risk factors in children with dravet syndrome.
Soo Young Lyu,Sang Ook Nam,Yun-Jin Lee,Geena Kim,Young A Kim,Juhyun Kong,Ara Ko,Young Mi Kim,Gyu Min Yeon +8 more
TL;DR: Investigation of cardiac electrical and autonomic function, the longitudinal changes, and the associated risk factors in children with Dravet syndrome found longer duration of epilepsy was significantly negative effect on the longitudinal change of cardiac autonomicfunction.
Journal ArticleDOI
Implications of surgical mask use in physical education lessons.
TL;DR: In this article, the effect of mask use in basal psychophysiological status of physical education students prior to a physical education lesson was analyzed, and the authors concluded that the use of surgical masks by physical education student induce modifications on the organic status, which could represent a handicap compromising the academic objectives of PE lessons.
Journal ArticleDOI
Concurrent Evolution of Biomechanical and Physiological Parameters With Running-Induced Acute Fatigue
Gaëlle Prigent,S Y Apte,Anisoara Paraschiv-Ionescu,Cyril Besson,Vincent Gremeaux,Kamiar Aminian +5 more
TL;DR: The ability of faster runners to better judge their physiological limits and hint toward a higher sensitivity of perceived fatigue to neuromuscular changes in the running gait are indicated.
Journal ArticleDOI
Driver Monitoring of Automated Vehicles by Classification of Driver Drowsiness Using a Deep Convolutional Neural Network Trained by Scalograms of ECG Signals
TL;DR: In this article , the authors proposed a new method for classifying driver drowsiness using deep convolution neural networks trained by wavelet scalogram images of electrocardiogram (ECG) signals.
Journal ArticleDOI
Association between PM 2.5 exposure and heart rate variability for the patients with cardiac problems in Japan
Kanawat Paoin,Kayo Ueda,Xerxes Seposo,Junichiro Hayano,Ken Kiyono,Norihiro Ueda,Takashi Kawamura,Akiko Honda,Hirohisa Takano +8 more
TL;DR: Examination of the association between 24-h HRV and fine particulate matter in a large study population spanning 7 prefectures in Japan from April 2010 through March 2013 found that decreases in HRV indices, especially for SDNN, SDANN, VLF, and ULF, were associated with PM2.5.
References
More filters
Journal ArticleDOI
Heart rate variability: standards of measurement, physiological interpretation and clinical use. Task Force of the European Society of Cardiology and the North American Society of Pacing and Electrophysiology.
Alan John Camm,Marek Malik,J. T. Bigger,G. Breithardt,Sergio Cerutti,Richard J. Cohen,Philippe Coumel,Ernest L. Fallen,H.L. Kennedy,Robert E. Kleiger,Federico Lombardi,Alberto Malliani,Arthur J. Moss,Jeffrey N. Rottman,Georg Schmidt,Peter J. Schwartz,D.H. Singer +16 more
Journal ArticleDOI
Heart rate variability. Standards of measurement, physiological interpretation, and clinical use
Marek Malik,J. Thomas Bigger,A. John Camm,Robert E. Kleiger,Alberto Malliani,Arthur J. Moss,Peter J. Schwartz +6 more
Journal ArticleDOI
Measuring agreement in method comparison studies
J M Bland,Douglas G. Altman +1 more
TL;DR: The 95% limits of agreement, estimated by mean difference 1.96 standard deviation of the differences, provide an interval within which 95% of differences between measurements by the two methods are expected to lie.
Journal ArticleDOI
Power spectrum analysis of heart rate fluctuation: a quantitative probe of beat-to-beat cardiovascular control
TL;DR: It is shown that sympathetic and parasympathetic nervous activity make frequency-specific contributions to the heart rate power spectrum, and that renin-angiotensin system activity strongly modulates the amplitude of the spectral peak located at 0.04 hertz.
Journal ArticleDOI
Power spectral analysis of heart rate and arterial pressure variabilities as a marker of sympatho-vagal interaction in man and conscious dog.
Massimo Pagani,Federico Lombardi,Stefano Guzzetti,Ornella Rimoldi,Raffaello Furlan,Paolo Pizzinelli,Giulia Sandrone,Gabriella Malfatto,Simonetta Dell’Orto,E Piccaluga +9 more
TL;DR: The spontaneous beat-to-beat oscillation in R-R interval during control recumbent position, 90° upright tilt, controlled respiration and acute and chronic β-adrenergic receptor blockade was analyzed, indicating that sympathetic nerves to the heart are instrumental in the genesis of low-frequency oscillations in R -R interval.