From: SinusCor: an advanced tool for heart rate variability analysis
Index | Description |
---|---|
Time domain | |
RMSSD (ms) | Root mean squared of successive NN differences |
SDNN (ms) | Standard deviation of NN intervals |
pNN50 (%) | Percentage of successive NN differences greater than 50 ms |
NN50 | Count of successive NN differences greater than 50 ms |
Mean RRi (ms) | Mean of RRi values |
Mean HR (bpm) | Mean of HR values |
Frequency domain | |
Total power (ms2) | Energy of the PSD from 0 to 0.4 Hz (adjustable) in absolute values |
VLF (ms2) | Energy of the PSD from 0 to 0.04 Hz (adjustable) in absolute values |
LF (ms2) | Energy of the PSD from 0.04 to 0.15 Hz (adjustable) in absolute values |
HF (ms2) | Energy of the PSD from 0.15 to 0.4 Hz (adjustable) in absolute values |
LF/HF | Ratio of LF to HF |
LFn.u | LF energy normalized by total power and VLF |
HFn.u | HF energy normalized by total power and VLF |