A Study on Comparison PPG Variability with Heart Rate Variability in the Sitting Position During Paced Respiration

The aim of this paper is to study the difference between HRV and PPGV by changes of respiration rate. For investigating the change of PPG, we evaluated the parameters, such as pulse transit time, morphological features of PPG, and the correlation coefficients between PPI(peak to peak interval in PPG and RR interval.