Table 8.
Electrocardiogram signal quality—saltwater wet condition.
| Parameter | Ag/AgCl | PLS | p-Value | Ag/AgCl | PLP | p-Value | |
|---|---|---|---|---|---|---|---|
| Temporal measures of HRV | meanNN (ms) | 789 ± 60 | 756 ± 67 | 0.4320 | 848 ± 121 | 823 ± 114 | 0.5957 |
| SDNN (ms) | 228 ± 89 | 60 ± 17.8 | 0.0032 | 173 ± 107 | 77.2 ± 37.4 | 0.0055 | |
| RMSSD (ms) | 297 ± 123 | 55.8 ± 28.5 | 0.0027 | 219 ± 142 | 86.2 ± 69.7 | 0.0059 | |
| NN50 | 70.8 ± 44.7 | 44.4 ± 47.7 | 0.4028 | 82.5 ± 49.6 | 68.1 ± 57.1 | 0.5011 | |
| Spectral measures of HRV | LF (ms2) | 12189 ± 8218 | 926 ± 568 | 0.0156 | 12170 ± 19375 | 1476 ± 1108 | 0.0584 |
| HF (ms2) | 19837 ± 16445 | 633 ± 458 | 0.0311 | 16844 ± 25268 | 2123 ± 3183 | 0.0479 | |
| Total (ms2) | 589723 ± 85193 | 497650 ± 95412 | 0.1461 | 686362 ± 196078 | 620400 ± 186430 | 0.3881 | |
| LF/HF | 0.7470 ± 0.2407 | 1.8791 ± 0.9075 | 0.0272 | 1.0658 ± 0.7633 | 1.5443 ± 1.0340 | 0.1920 | |
| Corr-Coef | r (unitless) | 0.97 ± 0.01 | 0.92 ± 0.008 | 0.2039 | 0.97 ± 0.01 | 0.98 ± 0.003 | 0.2951 |