A methodological assessment of Phase-Rectified Signal Averaging through simulated beat-to-beat interval time series

Average cardiac acceleration (AC) and deceleration (DC) capacity, as computed by Phase-Rectified Signal Averaging (PRSA), were introduced to detect quasi-periodic oscillations in RR series. Calculation of AC and DC depends on three parameters (T, L and s). The aim of the study was to provide further insights on AC/DC and on the appropriate selection of these parameters.