3.5.1. HRV
The mean values ± SEM for μRR and μHR and all HRV parameters studied are presented in Table 6. Fig. 6 depicts the mean values for pNN50 (AM) across all 9-days of the study. Due to the small sample size statistical analysis of the data were limited, however, the results suggest that for many of the HRV parameters, namely pNN50, μRR, STDRR, RMSSD, SD1 and SD2 values dramatically increased on M1 relative to S1 as observed in the main study. The parameters subsequently fell to a low level on M2. A gradual increase was then seen until M4 which was followed by a decrease till M7 with no further change seen between M7 and S2. The opposite pattern of change was seen in μHR and LF/HF.