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
HRVCam: robust camera-based measurement of heart rate variability.
TL;DR: HRVCam as discussed by the authors uses adaptive bandwidth filtering along with discrete energy separation to estimate the instantaneous frequency of the image photoplethysmography (iPPG) signal and demonstrate that HRVCam can be used on top of iPPG estimation algorithms to provide robust HRV measurements making camera-based HRV practical.
Journal ArticleDOI
Role of the parasympathetic nervous system in cancer initiation and progression
TL;DR: A critical evaluation of the available data related to the role of the parasympathetic nervous system in cancer indicates it has stimulatory effects.
Journal ArticleDOI
A calibrated measure to compare fluctuations of different entities across timescales.
Jan Chołoniewski,Julian Sienkiewicz,Naum Dretnik,Gregor Leban,Mike Thelwall,Janusz A. Hołyst,Janusz A. Hołyst +6 more
TL;DR: A method that uses predictions from a fluctuation scaling law as a benchmark for the observed standard deviations and combines the method with the political bias detector Media Bias/Fact Check to quantify the relative reporting styles for different topics of mainly US media sources grouped by political orientation.
Journal ArticleDOI
Where Do We Stand in the Domestic Dog ( Canis familiaris ) Positive-Emotion Assessment: A State-of-the-Art Review and Future Directions.
Erika Csoltova,Emira Mehinagic +1 more
TL;DR: A state-of-the-art review and summary of the scattered and disperse research on dog positive-emotion assessment and proposed possible future research directions for short-term emotion as well as longer-term emotional states assessment in dogs.
Journal ArticleDOI
Work-related stress, psychophysiological strain, and recovery among on-site construction personnel
TL;DR: Although construction personnel were subjected to excessive sympathetic nervous activity resulting in an increased need for recovery, proper recovery was disrupted due to excessively reduced parasympathetic activities during the day, indicating that construction personnel are exposed to excessive cardiovascular risk factors, increasing their vulnerability to endothelial dysfunction, atherosclerosis, and other adverse health outcomes.
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.