Table 2.

Intra-group differences in the outcome measures for experimental (tDCS plus physical therapy) and control (sham tDCS plus physical therapy) groups.

		T0	T1	∆T0-T1 p-Value	T2	∆T1-T2 p-Value	T3	∆T2-T3 p-Value
6MWT (meters)	experimental	300.1 ± 18.8	322.0 ± 17.0	0.006	317.3 ± 19.1	0.007	303.7 ± 16.9	0.006
	control	294.5 ± 13.4	299.5 ± 14.5	0.009	284.2 ± 14.9	0.006	281.5 ± 13.7	0.084
Gait velocity (m/s)	experimental	0.9 ± 0.3	0.8 ± 0.3	0.331	0.8 ± 0.5	0.105	0.8 ± 0.5	0.312
	control	0.9 ± 0.2	0.9 ± 0.4	0.227	0.8 ± 1.2	0.109	0.7 ± 0.4	0.059
Gait cycle (meters)	experimental	1.0 ± 0.2	0.8 ± 0.4	0.451	0.8 ± 0.41	0.245	0.8 ± 0.2	0.677
	control	1.0 ± 0.5	1.1 ± 0.4	0.423	1.0 ± 0.52	0.311	0.9 ± 0.5	0.546
TUG (seconds)	experimental	14.1 ± 3.5	12.8 ± 5.0	0.031	13.0 ± 3.7	0.154	12.0 ± 3.9	0.042
	control	12.8 ± 1.1	11.3 ± 3.9	0.043	10.3 ± 2.6	0.06	11.3 ± 2.1	0.044
BBS	experimental	48.3 ± 7.4	53.3 ± 3.9	0.023	52.2 ± 5.1	0.095	50.3 ± 6.8	0.083
	control	50.4 ± 1.4	51.4 ± 4.4	0.162	52.4 ± 3.3	0.094	49.8 ± 2.0	0.079
FRI	experimental	1.3 ± 0.3	1.0 ± 0.8	0.099	1.0 ± 0.6	0.876	1.0 ± 0.5	0.765
	control	1.3 ± 0.3	1.2 ± 0.5	0.203	1.2 ± 0.6	0.785	0.1 ± 0.6	0.672

Continuous variables are expressed as means ± standard deviations. Wilcoxon’s paired t-Test was used for intra-group differences. Note: p-values are significant if <0.05 (expressed in bold type). Abbreviations: 6MWT: 6 min walking test; BBS: Berg Balance Scale; FRI: Fall Risk Index; tDCS: transcranial direct current stimulation; TUG: timed up-and-go.