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Comparison of power density of alpha oscillation before and after intervention in three groups [X ± SD (μV2/Hz)].
| Group 1 (n = 15) | Group 2 (n = 15) | Group 3 (n = 15) | F | p † | ||
| Alpha oscillation (8–12Hz) | Pretest | 0.55 ± 0.29 | 0.730.25 | 0.840.23 | 3.165 | 0.570 |
| Posttest | 0.65 ± 0.31 | 0.720.23 | 0.830.18 | 1.320 | 0.282 | |
| Posttest–pretest | 0.10 ± 0.14 | −0.010.15 | −0.010.25 | 1.328 | 0.280 | |
| p ‡ | 0.046* | 0.867 | 0.745 |
*p < 0.05; †for one-way ANOVA; ‡paired t-test.
