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.