Table 2 The R2 and significance of cubic regression between the level of salivary cortisol and HRV features in the 98 tests
From: The persistent effect of acute psychosocial stress on heart rate variability
| RR | SD of RR | HR | PVLF | PHF | SD1 of PP | α1 of DFA | ||
|---|---|---|---|---|---|---|---|---|
| Cortisol | R 2 | 0.225 | 0.129 | 0.26 | 0.29 | 0.162 | 0.194 | 0.13 |
| Sig | 0.000 | 0.008 | 0.000 | 0.000 | 0.002 | 0.000 | 0.008 | |
