Table 2 Values of HRV parameters in time and frequency domains
| Â | Parameters | Group | |||
|---|---|---|---|---|---|
VD (n = 16) | EDA (n = 16) | CS (n = 14) | |||
Time domain | RR1 (s) | \( \overline{x} \) ±SD (SEM) | 0.501 ± 0.03 (0.008) | 0.513 ± 0.05 (0.012) | 0.498 ± 0.03 (0.008) |
RR2 (s) | \( \overline{x} \) ±SD (SEM) | 0.573 ± 0.06 (0.015) | 0.55 ± 0.05 (0.012) | 0.564 ± 0.054 (0.014) | |
log MSSD1 (ms) | \( \overline{x} \) ±SD (SEM) | 4.14 ± 1.1 (0.28) | 4.08 ± 1.5 (0.4) | 3.49 ± 0.83 (0.22) | |
log MSSD2 (ms) | \( \overline{x} \) ±SD (SEM) | 6.42 ± 1.1 (0.28) | 6.13 ± 0.96 (0.24) | 6.21 ± 1.23 (0.33) | |
Frequency domain | log LF1 (ms2) | \( \overline{x} \) ±SD (SEM) | 2.45 ± 1.05 (0.26) | 2.86 ± 1.3 (0.32) | 3.12 ± 1.02 (0.27) |
log LF2 (ms2) | \( \overline{x} \) ±SD (SEM) | 4.89 ± 1.4 (0.35) | 4.45 ± 1.46 (0.37) | 5.37 ± 0.96 (0.26) | |
log HF1 (ms2) | \( \overline{x} \) ±SD (SEM) | 3.02 ± 0.92 (0.23) | 3.18 ± 1.55 (0.39) | 2.7 ± 1.1 (0.3) | |
log HF2 (ms2) | \( \overline{x} \) ±SD (SEM) | 5.38 ± 1.22 (0.31) | 5.1 ± 0.93 (0.23) | 5.2 ± 1.08 (0.29) | |
LF1% | \( \overline{x} \) ±SD (SEM) | 37.3 ± 14.7 (3.7) ** | 43.3 ± 19 (4.7) | 59.2 ± 18.4 (4.9) ** | |
LF2% | \( \overline{x} \) ±SD (SEM) | 40.2 ± 20.9 (5.2) | 37.6 ± 21.3 (5.3) | 54.1 ± 20.6 (5.5) | |
HF1% | \( \overline{x} \) ±SD (SEM) | 62.7 ± 14.7 (3.7) ** | 56.7 ± 19 (4.7) | 40.8 ± 18.4 (4.9) ** | |
HF2% | \( \overline{x} \) ±SD (SEM) | 59.8 ± 20.9 (5.2) | 62.4 ± 21.3 (5.3) | 45.9 ± 20.3 (5.4) | |
log TP1 (ms2) | \( \overline{x} \) ±SD (SEM) | 3.52 ± 0.91 (0.23) | 3.81 ± 1.42 (0.36) | 3.69 ± 0.98 (0.26) | |
log TP2 (ms2) | \( \overline{x} \) ±SD (SEM) | 5.96 ± 1.21 (0.3) | 5.64 ± 0.98 (0.24) | 6.09 ± 0.92 (0.25) | |