Table 3.
Heart rate variability parameters in deep breathing test.
| HRV parameters | Deep breathing test | |
|---|---|---|
| Patients | Controls | |
| LFnu-RRI [%] | 83.9±11.8 | 78.7±17.8 |
| HFnu-RRI [%] | 16.1±11.8 | 21.3±17.8 |
| VLF-RRI [ms × ms] | 333.2±300.5 | 199.4±129.2 |
| LF-RRI [ms × ms] | 3450.7±2612.7 | 4707.9±4845.8 |
| HF-RRI [ms × ms] | 298.4±223.2 | 953.2±1177.6 |
| PSD-RRI [ms× ms] | 4269.3±2921.9 | 7014.1±7531.7 |
| LF/HF-RRI [1] | 13.2±10.1 | 10.7±8.2 |
| LF/HF [1] | 9.4±7.4 | 7±5.5 |
RRI – RR interval; LFnu-RRI – normalises units low frequency; HFnu-RRI – normalised units high frequency; VLF-RRI – heart rate variability – VLF (very low frequency); LF-RRI – heart rate variability – LF (low frequency); HF-RRI – heart rate variability – HF (high frequency); PSD-RRI – power spectral density; LF/HF-RRI – LF/HF ratio.