Table 1 HRV feature trends
HRV Features | 5 min | 3 min | 2 min | 1 min | 30 sec |
|---|---|---|---|---|---|
MeanNN | ↓↓ | ↓↓ | ↓↓ | ↓↓ | ↓↓ |
StdNN | ↓↓ | ↓↓ | ↓↓ | ↓↓ | ↓↓ |
MeanHR | ↑↑ | ↑↑ | ↑↑ | ↑↑ | ↑↑ |
Std HR | ↑↑ | ↑↑ | ↑↑ | ↑↑ | ↑↑ |
RMSSD | ↑ | ↑ | ↑ | ↑ | ↓ |
NN50 | ↑ | ↑ | ↑ | ↑ | ↑ |
pNN50 | ↓ | ↓ | ↑ | ↓ | ↓ |
LF | ↓↓ | ↓↓ | ↓↓ | – | – |
HF | ↓↓ | ↓↓ | ↓↓ | ↓↓ | – |
LF/HF | ↓↓ | ↓↓ | ↓↓ | – | – |
TotPow | ↓↓ | ↓↓ | ↓↓ | – | – |
SD1 | ↑ | ↑ | ↑ | ↑ | ↓ |
SD2 | ↓↓ | ↓↓ | ↓↓ | ↓↓ | ↓↓ |
ApEn | ↓↓ | ↓↓ | – | – | – |
SampEn | ↓↓ | ↓↓ | ↓↓ | ↓↓ | – |
D2 | ↓↓ | ↓↓ | ↓↓ | ↓↓ | – |
dfa1 | ↓↓ | ↓↓ | ↓↓ | ↓↓ | – |
dfa2 | ↑ | ↑ | ↑ | ↓ | – |
RPlmean | ↑↑ | ↑↑ | ↑↑ | ↑ | – |
RPlmax | ↓↓ | ↓↓ | ↓ | ↑ | – |
REC | ↑↑ | ↑↑ | ↑↑ | ↑ | – |
RPadet | ↑↑ | ↑ | ↑ | ↓ | – |
ShanEn | ↑↑ | ↑↑ | ↑↑ | ↑↑ | – |