Combining transcranial direct current stimulation with a motor-cognitive task: the impact on dual-task walking costs in older adults

Table 2 The dual-task costs to gait measures, before and after the tDCS + walking condition

Gait measure	Pre-cost	Post-cost	t (24)	P-value
Stride time	− 7.5 ± 10.3%	− 2.9 ± 5.7%	1.42	0.013
Double support time	− 11.9 ± 13.7%	− 7.6 ± 7.9%	1.06	0.016
Step regularity	− 10.1 ± 11.4%	− 2.8 ± 12.9%	− 1.95	0.006
Stride time variability	− 193.2 ± 59.4%	− 49.2 ± 37.3%	2.61	0.020
Swing time variability	− 77.0 ± 86.3%	− 18.0 ± 47.7%	2.21	0.009

The dual-task costs following the tDCS + walking condition were significantly reduced (i.e., improved) as compared to the costs before the intervention. In this analysis, lower costs are better

ISSN: 1743-0003