Total wavelet entropy analysis of cyclic exercise protocol on heart rate variability

Cyclic exercise has been shown to have a positive impact on health. This study investigated the efficacy of a novel exercise protocol on heart rate variability, which is an indication of the body's ability to respond to stress. The total wavelet entropy parameter indicated an increasing trend in the free energy, or information content, of the signal in the high and low frequency ranges, as well as over the entire range of frequencies in the signal. This suggests that a cyclic exercise protocol is training the body's natural exertion/recovery ability due to the increase in variability in both the high and low frequency ranges.