SelfLoops HRV – 4.5

The SelfLoops HRV lication calculates and displays the heart rate variability. Heart rate variability (HRV) is the physiological phenomenon of variation in the time interval between heartbeats. It is measured by the variation in the beat-to-beat (called R-R) intervals. There are several metrics used in the scientific literature, we calculate: SDNN, RMSSD, pNN50, AVNN.