Table 2.
Differences in the measures through hospital clinical simulation.
| Prepractice | 1/10 | 5/10 | 10/10 | Postpractice | Chi2 | Sig. | Post hoc | |
|---|---|---|---|---|---|---|---|---|
| M0 | M1 | M2 | M3 | M4 | ||||
| LF (n.u.) | 72.51 ± 15.85 | 73.62 ± 20.08 | 68.66 ± 15.70 | 73.50 ± 14.58 | 69.42 ± 13.77 | 5.156 | 0.272 | |
| HF (n.u.) | 27.40 ± 15.53 | 26.30 ± 20.01 | 31.21 ± 15.62 | 26.37 ± 14.48 | 30.48 ± 13.74 | 5.156 | 0.272 | |
| LF/HF ratio (n.u.) | 5.67 ± 8.53 | 5.06 ± 3.99 | 3.04 ± 2.00 | 4.87 ± 4.92 | 3.48 ± 3.66 | 5.156 | 0.272 | |
| PNN50 (N°) | 17.61 ± 13.74 | 16.22 ± 19.08 | 13.09 ± 17.47 | 13.83 ± 16.86 | 15.06 ± 15.19 | 14.180 | 0.015 | 3 < 0 |
| RMSSD (ms) | 44.45 ± 19.30 | 42.03 ± 36.96 | 39.88 ± 30.55 | 47.38 ± 40.90 | 39.12 ± 23.83 | 4.664 | 0.458 | |
| SD1 (ms) | 31.46 ± 13.66 | 29.86 ± 26.22 | 28.30 ± 21.69 | 28.04 ± 24.74 | 27.70 ± 16.86 | 7.778 | 0.100 | |
| SD2 (ms) | 113.73 ± 46.47 | 97.19 ± 43.21 | 82.72 ± 40.67 | 92.64 ± 41.88 | 116.35 ± 49.48 | 14.489 | 0.006 | 2 < 0; 3 < 0; 4 > 2 |
M: moment; HRV: heart rate variability; LF: the low-frequency band in normalized units (low-frequency); HF: the high-frequency band in normalized units (high-frequency); LF/HF ratio: a ratio of low frequency to high frequency; PNN50: the proportion of NN50 divided by the total number of NNs; RMSSD: square root of the mean of the sum of the squared differences between adjacent normal R-R intervals; n.u.: normalized unit; SD1: standard deviations of the scattergram 1; SD2: standard deviations of the scattergram 2.