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
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Infants Show Physiological Responses Specific to Parental Hugs
Sachine Yoshida,Sachine Yoshida,Yoshihiro Kawahara,Takuya Sasatani,Ken Kiyono,Yo Kobayashi,Hiromasa Funato,Hiromasa Funato +7 more
TL;DR: The results suggest the parents' hug underlies the parent-infant bonding and psychophysiological development of infants.
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Applying Heart Rate Variability to Monitor Health and Performance in Tactical Personnel: A Narrative Review.
TL;DR: The use of heart rate variability (HRV) is becoming more common in the tactical community as discussed by the authors due to an increased understanding of its importance and the commercial availability of assessment tools.
Proceedings ArticleDOI
Heart rate variability at bedtime predicts subsequent sleep features
TL;DR: The possibility to predict sleep parameters from the HRV metrics while falling asleep might pave the way to behavioral interventions during the bedtime period to increase the quality of sleep.
Journal ArticleDOI
Long–Short Ensemble Network for Bipolar Manic-Euthymic State Recognition Based on Wrist-Worn Sensors
TL;DR: In this paper , a deep learning-based ensemble method leveraging long (20 h) and short (5 min) time intervals was proposed to discriminate between the mood states, achieving an average accuracy of 91.59% in euthymic/manic mood state recognition.
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Risk Stratification in Idiopathic Dilated Cardiomyopathy Patients Using Cardiovascular Coupling Analysis.
TL;DR: A novel method for SCD risk stratification for IDC patients based on new indices from coupling analysis and non-linear HRV and BPV is introduced and some of the complex interactions within the autonomic regulation in this type of patient is uncovered.
References
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Heart rate variability. Standards of measurement, physiological interpretation, and clinical use
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Measuring agreement in method comparison studies
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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.
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Power spectrum analysis of heart rate fluctuation: a quantitative probe of beat-to-beat cardiovascular control
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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.