Table 1.
Heart rate variability parameters obtained from stationary analysis in SinusCor
| 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 |