Table 7.
HRV parameters for mental arithmetic test at SSWV.
| Polar V800 Median (25%; 75%) |
ECG Median (25%; 75%) |
ICC | p Value | Bias (LoA) | Effect Size | ||
|---|---|---|---|---|---|---|---|
| Time domain | SDNN (ms) | 19.5 (13.7; 26.0) | 19.5 (13.7; 26.0) | 1.000 | <0.0001 | 0.00 (−0.08 to 0.08) | 0.000 |
| RMSSD (ms) | 11.0 (7.3; 16.8) | 10.8 (7.4; 16.9) | 1.000 | <0.0001 | 0.01(−0.23 to 0.24) | 0.001 | |
| NN50 (beats) | 0.0 (0.0; 1.0) | 0.5 (0.00; 1.00) | 0.995 | <0.0001 | 0.08 (−1.04 to 1.20) | 0.016 | |
| PNN50 (%) | 0.0 (0.0; 0.3) | 0.1 (0.0; 0.3) | 0.997 | <0.0001 | 0.02 (−0.25 to 0.29) | 0.015 | |
| Frequency domain | VLF (ms2) | 270.8 (83.7; 524.2) | 271.8 (83.7; 523.7) | 1.000 | <0.0001 | 1.00 (0.99 to 1.01) * | 0.000 |
| LF (ms2) | 57.0 (26.0; 103.7) | 57.2 (25.8; 103.7) | 1.000 | <0.0001 | 1.00 (0.97 to 1.04) * | 0.000 | |
| LF (nu) | 49.7 (39.2; 70.6) | 49.5 (39.7; 70.8) | 1.000 | <0.0001 | 0.00 (−0.01 to 0.01) | 0.006 | |
| HF (ms2) | 48.3 (19.3; 97.4) | 49.0 (19.5; 97.5) | 1.000 | <0.0001 | 1.00 (0.95 to 1.04) * | 0.002 | |
| HF (nu) | 49.5 (29.6; 61.1) | 49.4 (29.4; 60.6) | 1.000 | <0.0001 | 0.00 (−0.01 to 0.01) | 0.005 | |
| TP (ms2) | 371.2 (182.7; 665.4) | 371.4 (182.1; 665.9) | 1.000 | <0.0001 | 1.00 (0.99 to 1.01) * | 0.001 | |
| LF/HF ratio | 1.0 (0.6; 2.5) | 1.0 (0.7; 2.6) | 1.000 | <0.0001 | 1.00 (0.56 to 1.44) * | 0.004 |
* Value presented on a ratio scale after antilog; LoA: limits of agreement.