Table 3.
P-values obtained from the repeated-measures ANOVA and its post-hoc analyses, when applied to frequency-domain indices of PRV and HRV.
| Index | Source | ANOVA | post-hoc comparisons | ||
|---|---|---|---|---|---|
| BM vs. CE | CE vs. CR | BM vs. CR | |||
| LF (s2) | HRV | 0.057 | – | – | – |
| Finger PRV | 0.008 | 0.028 | 0.162 | 0.077 | |
| Toe PRV | 0.009 | 0.010 | 1.000 | 0.083 | |
| Ear canal PRV | 0.622 | – | – | – | |
| Earlobe PRV | 0.004 | 0.016 | 0.352 | 0.122 | |
| HF (s2) | HRV | 0.024 | 0.070 | 0.134 | 0.059 |
| Finger PRV | 0.016 | 0.058 | 1.000 | 0.057 | |
| Toe PRV | <0.001 | <0.001 | 0.236 | 0.013 | |
| Ear canal PRV | 0.057 | – | – | – | |
| Earlobe PRV | 0.008 | 0.018 | 0.458 | 0.016 | |
| TP (s2) | HRV | 0.031 | 0.085 | 0.230 | 0.061 |
| Finger PRV | 0.013 | 0.047 | 1.000 | 0.052 | |
| Toe PRV | <0.001 | <0.001 | 0.546 | 0.007 | |
| Ear canal PRV | 0.581 | – | – | – | |
| Earlobe PRV | 0.002 | 0.015 | 0.459 | 0.037 | |
Values in red indicate statistical significance (p-value < 0.05). Sphericity corrections using Greenhouse-Geisser correction were applied when Mauchly's test showed statistically significant results, and p-values shown are after these corrections. Normalized frequency-domain indices did not show statistical differences between stages from any of the signals. BM, baseline measurement; CE, cold exposure; CR, cold recovery.