![]() The typical HRV spectrum of a healthy person at rest is mainly composed of two components: a low frequency band (LF), from 0.04 to 0.15 Hz and a high frequency band (HF) ranging from 0.15 to 0.4 Hz. Since then, its clinical usefulness in various pathologies such as myocardial infarction, hypertension, heart failure, transplantation, etc, has been studied. This relationship was experimentally determined by Aselkrod in 1981. Variability is the result of a trade-off between the influence of the parasympathetic system (accelerating the heart rate) and the sympathetic system (slowing the heart rate). Heart Rate Variability (HRV) can be defined as the variations in the sequence of periods between consecutive heartbeats, and it is regulated by factors extrinsic to the circulatory system. This project is maintained by milegroup Table of contents ![]() A graphical tool for Heart-Rate Variability analysis
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