Table 4.
Pre- vs. post-test of relative power values for exergame and balance group.
| Exergame group | Pre (N = 8) | Post (N = 9) | z | p | r |
|---|---|---|---|---|---|
| AUDITORY STIMULI | |||||
| Delta | 1.79 (1.61; 2.07) | 1.59 (1.33; 1.95) | −1.52 | 0.156 | −0.37a |
| Theta | 1.86 (1.55; 2.42) | 1.70 (1.24; 1.86) | −2.37 | 0.016* | −0.57b |
| Alpha low | 1.24 (1.16; 1.38) | 1.00 (0.80; 1.35) | −1.18 | 0.297 | −0.29 |
| Alpha high | 1.14 (0.67; 1.38) | 0.83 (0.55; 1.16) | −1.18 | 0.297 | −0.29 |
| Beta | −0.21(−0.6; 10.06) | −0.19 (−0.44; 0.14) | −1.18 | 0.297 | −0.29 |
| VISUAL STIMULI | |||||
| Delta | −0.08 (−0.63; 0.07) | −0.22 (−0.46; 0.14) | −1.01 | 0.375 | −0.25 |
| Theta | −0.82 (−1.29; −0.38) | −0.60 (−0.96; −0.28) | −1.18 | 0.297 | −0.29 |
| Alpha low | −0.57 (−1.23; −0.21) | −0.32 (−0.78; 0.02) | −1.70 | 0.109 | −0.41a |
| Alpha high | −0.77 (−1.14; −0.09) | −0.44 (−1.14; −0.09) | −0.85 | 0.469 | −0.21 |
| Beta | −0.70 (−0.90; −0.74) | −0.31 (−0.74; −0.04) | −1.52 | 0.078 | −0.37a |
| Balance group | Pre (N = 10) | Post (N = 9) | |||
| AUDITORY STIMULI | |||||
| Delta | 1.70 (1.28; 2.10) | 1.99 (1.55; 2.29) | −0.56 | 0.641 | −0.13 |
| Theta | 1.81 (1.63; 2.02) | 1.92 (1.65; 2.10) | −0.70 | 0.547 | −0.16 |
| Alpha low | 0.79 (0.44; 1.17) | 1.30 (0.69; 1.47) | −1.54 | 0.148 | −0.35a |
| Alpha high | 0.79 (0.29; 1.28) | 1.26 (0.77; 1.46) | −1.82 | 0.078 | −0.42a |
| Beta | −0.16 (−0.33; 0.20) | −0.26 (−0.90; 0.21) | −1.54 | 0.148 | −0.35a |
| VISUAL STIMULI | |||||
| Delta | −0.12 (−0.48; 0.18) | −0.14 (−0.68; 0.15) | 0.00 | 1.000 | 0.00 |
| Theta | −0.24 (−1.49; 0.03) | −0.77 (−1.55; −0.43) | −1.40 | 0.195 | −0.32a |
| Alpha low | −0.27 (−1.12; −0.13) | −0.60 (−0.90; −0.37) | −0.70 | 0.547 | −0.16 |
| Alpha high | −0.21 (−1.81; −0.07) | −0.97(−1.74; −0.32) | −1.12 | 0.313 | −0.26 |
| Beta | −0.35 (−1.38; 0.07) | −0.84 (−1.16; −0.28) | −0.70 | 0.547 | −0.16 |
Normalized data from pre-post are median values (interquartile range) as indicated.
*
Significant within-group differences pre-post (p ≤ 0.05) calculated with Wilcoxon signed-rank test (p-values are two-tailed). For effect size r, r = 0.1 − 0.29 indicates a small effect,
a
r = 0.3 − 0.49 indicates a medium effect, and
b
r ≥ 0.5 indicates a large effect. Bold values indicate significance and medium or large effect size.