Table 3. Descriptive statistics (mean ± standard deviation) for the Y-Balance Test at two assessment points in four groups. G1 G2 G3 G4 F p value ES (η2p) ANT Pre 66.22 ± 4.66 61.27 ± 7.63 68.68 ± 7.65 65.31 ± 3.93 2.220 0.105 0.172 Post 65.13 ± 6.63 62.97 ± 7.01 72.19 ± 5.26 68.59 ± 2.89 4.550 0.009‡ 0.299 (Effect) Interaction Group Time p value 0.507 0.301 0.038* 0.051 0.184 0.024† 0.029† ES (η2p) 0.014 0.033 0.128 0.114 0.138 0.252 0.141 PM Pre 111.87 ± 9.37 103.59 ± 9.45 106.86 ± 5.62 110.56 ± 9.21 1.722 0.182 0.139 Post 113.48 ± 4.06 105.05 ± 9.71 116.30 ± 3.80 119.12 ± 6.75 7.784 0.000‡ 0.422 (Effect) Interaction Group Time p value 0.587 0.622 0.003* 0.006* 0.111 0.007† 0.001† ES (η2p) 0.009 0.008 0.244 0.210 0.169 0.312 0.287 PL Pre 117.36 ± 6.46 111.11 ± 11.60 111.17 ± 7.05 116.95 ± 4.31 1.782 0.170 0.143 Post 120.78 ± 4.25 110.70 ± 11.85 118.10 ± 3.91 123.08 ± 6.74 4.749 0.008‡ 0.308 (Effect) Interaction Group Time p value 0.101 0.842 0.002* 0.005* 0.064 0.033† 0.000† ES (η2p) 0.082 0.001 0.268 0.223 0.200 0.235 0.330 COMP Pre 111.84 ± 8.00 105.42 ± 10.95 107.88 ± 7.06 110.93 ± 8.70 1.003 0.404 0.086 Post 113.40 ± 7.87 106.50 ± 10.34 115.35 ± 5.47 117.69 ± 8.22 3.141 0.039‡ 0.227 (Effect) Interaction Group Time p value 0.441 0.594 0.001* 0.002* 0.053 0.154 0.000† ES (η2p) 0.019 0.009 0.304 0.264 0.210 0.149 0.358 *Indicates p < 0.05 between the pretest and posttest within each group and for each condition; †Indicates p < 0.05 for the interaction effect, group effect, or time effect; ‡Indicates p < 0.05 between four groups at pretest or posttest. ES: effect size; G1, tDCS group; G2, sham tDCS group; G3, tDCS with balance training group; G4, sham tDCS with balance training group; tDCS, transcranial direct current stimulation; ANT, anterior reach; PM, posteromedial reach; PL, posterolateral reach; COMP, composite reach.