Key result
Time-frequency analysis of heart rate variability using a smoothed pseudo-Wigner-Ville distribution and polynomial filtering produced coherent estimates of band-specific HRV amplitudes.
Time-frequency analysis of HRV using SPWVD is a promising method for mapping transient changes in the frequency and amplitude characteristics of cardiac dynamics.
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May facilitate mapping transient HRV dynamics; hypothesis-generating and requires validation before clinical use.
Kettunen et al. (2001) studied Heart rate variability. Smoothed pseudo-Wigner-Ville distribution (SPWVD) and polynomial filtering was evaluated on Band-specific HRV amplitudes and frequency characteristics. Time-frequency analysis of heart rate variability using a smoothed pseudo-Wigner-Ville distribution and polynomial filtering produced coherent estimates of band-specific HRV amplitudes.
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