Background. Heart rate variability (HRV) provides information about the activity of the
autonomic nervous system. Because of the small amount of data collected, the importance of …

Background The cardiac parameters, such as heart rate (HR) and heart rate variability
(HRV), are very important physiological data for daily healthcare. Recently, the camera …

Objective Today mobile health-monitoring devices calculate heart rate and its variability
mostly from the photoplethysmogram (PPG). Minimizing the power consumption is crucial …

Pulse rate variability (PRV) analysis appears as the first alternative to heart rate variability
analysis for wearable devices; however, there is a constraint on computational load and …

Heart rate variability (HRV) is traditionally derived from RR interval time series of
electrocardiography (ECG). Photoplethysmography (PPG) also reflects the cardiac rhythm …

Measures of heart rate variability (HRV) are widely used to assess autonomic nervous
system (ANS) function. The signal from which they are derived requires accurate …

Heart Rate Variability (HRV) signal analysis provides a quantitative marker of the Autonomic
Nervous System (ANS) function. A wristband-type wireless photoplethysmographic (PPG) …

Because it is more convenient to measure photoplethysmography (PPG) than ECG, PPG is
supposed as a surrogate of ECG for heart rate variability (HRV) analysis. In this study, we …

Heart rate variability (HRV) is a useful clinical tool for autonomic function assessment and
cardiovascular diseases diagnosis. It is traditionally calculated from a dedicated medical …

A measurement method of heart rate and heart rate variability (HRV) based on smartphone
has been developed and validated. The method is based on photoplethysmography (PPG) …