Table 3.
Heart rate variability comparison between computer vs. board playing in participants who are familiarized playing with computer (n = 14).
| Variable | Board Mean (SD) |
Computer Mean (SD) |
p-Value | Effect Size |
|---|---|---|---|---|
| MeanRR | 712.06 (196.64) | 781.07 (179.92) | 0.300 | −0.286 |
| SDNN | 47.58 (32.67) | 44.36 (32.62) | 0.397 | −0.235 |
| pNN50 | 11.53 (25.03) | 13.38 (26.67) | 0.975 | −0.008 |
| RMSSD | 36.00 (25.50) | 36.48 (30.79) | 0.975 | −0.008 |
| HFn | 33.80 (22.12) | 33.93 (27.71) | 0.925 | −0.026 |
| LFn | 66.19 (22.27) | 66.01 (27.75) | 0.875 | −0.043 |
| LF/HF | 2.00 (2.14) | 1.94 (2.69) | 0.510 | −0.182 |
| Total Power | 1658.37 (3206.29) | 1774.21 (2319.68) | 0.638 | −0.130 |
| SD1 | 25.49 (20.19) | 25.85 (21.87) | 0.975 | −0.008 |
| SD2 | 59.67 (42.78) | 56.72 (41.39) | 0.363 | −0.252 |
| SampEn | 1.68 (0.62) | 1.57 (0.60) | 0.826 | −0.061 |
Effect size correspond to “r”. IQR: interquartile range; RR: time between RR intervals in milliseconds; SDNN: standard deviation of all normal to normal RR intervals; pNN50: the percentage of intervals >50 ms different from preceding interval; RMSSD: root mean square of successive RR interval differences; LF/HF: ratio low frequency (LFn) (ms2)/high frequency (HFn) (ms2); Total Power: the sum of all spectra; SD1: dispersion, standard deviation, of points perpendicular to the axis of line-of-identity in the Poincaré plot; SD2: dispersion, standard deviation, of points along the axis of line-of-identity in the Poincaré plot; SampEn: sample entropy.