Analýza srdeční variability z multikanálového fotopletysmografu

Abstract

Heart rate variability (HRV) is a parameter of heart activity which is used to describe fluctuation of intervals between two consecutive heart beats. This work focuses on the analysis of HRV from PPG and ECG signals derived from Multi channels PPG. The suitable methods of preprocessing of signals are described in order to obtain the accurate results of the HRV analysis and several effect causing changes in HRV are evaluated. The object of work is to evaluate accuracy of the measurement from PPG beside EKG because this method is not used in common practice and analyse the change of HRV during day.