The validity and reliability of ultra-short-term heart rate variability parameters and the influence of physiological covariates
Joel S. Burma, Sarah Graver, Lauren N. Miutz, Alannah Macaulay, Paige Copeland, Jonathan D. Smirl
Abstract
A one size fits all methodological approach to quantify HRV metrics appears to be inappropriate, where study design considerations need to be conducted upon a variable-by-variable basis. The present results found 60 s (heart rate), 240 s (time-domain parameters), and 300 s (relative frequency-domain parameters) were required to obtain accurate and reproducible metrics. The lower validity/reliability of the ultra-short-term metrics was attributable to measurement error and/or confounding from extraneous physiological influences (i.e., respiratory and hemodynamic variables).
Topics & Concepts
CovariateReliability (semiconductor)Term (time)StatisticsHeart rateHeart rate variabilityMedicineMathematicsInternal medicineBlood pressurePhysicsPower (physics)Quantum mechanicsHeart Rate Variability and Autonomic ControlNon-Invasive Vital Sign MonitoringCardiovascular and exercise physiology