Facilitation of corticospinal tract excitability by transcranial direct current stimulation combined with voluntary grip exercise.

Highlights: [•] We examine the effect of tDCS alone or grip exercise alone or combination of tDCS and grip exercise. [•] Simultaneous administration of real tDCS and grip exercise led to the most significant increase in MEP amplitude. [•] Real tDCS alone and grip exercise alone resulted in similar increases in MEP amplitude. [ABSTRACT FROM AUTHOR]