Table 5.
HRV parameters for naming test.
| Polar V800 Median (25%; 75%) |
ECG Median (25%; 75%) |
ICC | p Value | Bias (LoA) | Effect Size | ||
|---|---|---|---|---|---|---|---|
| Time domain | SDNN (ms) | 24.6 (18.4; 32.7) | 24.6 (18.4; 32.8) | 1.000 | <0.0001 | −0.01 (−0.21 to 0.20) | 0.090 |
| RMSSD (ms) | 15.5 (9.9; 21.9) | 15.5 (10.1; 21.9) | 1.000 | <0.0001 | −0.01 (−0.21 to 0.20) | 0.001 | |
| NN50 (beats) | 0.0 (0.0; 4.3) | 0.0 (0.0; 3.8) | 0.999 | <0.0001 | −0.08 (−1.01 to 0.85) | 0.010 | |
| PNN50 (%) | 0.0 (0.0; 1.1) | 0.0 (0.0; 0.9) | 0.999 | <0.0001 | −0.03 (−0.34 to 0.28) | 0.008 | |
| Frequency domain | VLF (ms2) | 363.2 (176.8; 678.1) | 363.7 (176.0; 674.1) | 0.999 | <0.0001 | 1.01 (0.90 to 1.07) * | 0.011 |
| LF (ms2) | 123.4 (61.1; 278.9) | 124.5 (61.2; 278.3) | 1.000 | <0.0001 | 1.00 (0.97 to 1.03) * | 0.003 | |
| LF (nu) | 62.1 (53.3; 70.9) | 62.3 (53.6; 70.8) | 1.000 | <0.0001 | 0.00 (−0.01 to 0.01) | 0.000 | |
| HF (ms2) | 80.3 (32.1; 164.2) | 79.3 (32.2; 160.9) | 1.000 | <0.0001 | 1.00 (0.96 to 1.04) * | 0.002 | |
| HF (nu) | 39.1 (29.7; 48.9) | 39.1 (30.3; 49.0) | 1.000 | <0.0001 | 0.00 (−0.01 to 0.01) | 0.000 | |
| TP (ms2) | 582.6 (332.7; 1021.8) | 582.7 (330.6; 1020.5) | 1.000 | <0.0001 | 1.00 (0.93 to 1.07) * | 0.009 | |
| LF/HF ratio | 1.6 (1.1; 2.4) | 1.6 (1.1; 2.4) | 0.999 | <0.0001 | 1.00 (0.95 to 1.05) * | 0.002 |
* Value presented on a ratio scale after antilog; LoA: limits of agreement.