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
0.002