Transcranial direct current stimulation combined with visuo-motor training as treatment for chronic stroke patients

Restorative Neurology and Neuroscience
Elena L PavlovaJörgen Borg

Abstract

Recent studies exploring the combined effect of motor learning and transcranial direct current stimulation (tDCS) for stroke rehabilitation have shown partially conflicting results. To test the efficacy of an optimized hand training approach combined with tDCS in stroke patients. In the present pilot study we investigated motor effects of four-week training with a visuomotor grip force tracking task combined with tDCS in 11 chronic stroke patients. Anodal (0.5 mA) or sham tDCS was applied over the primary motor cortex of the lesioned side for 20 minutes, twice a day, during training. No difference between the Active and Sham groups in the total upper extremity (UE) Fugl-Meyer Assessment (FMA) score was found. The most prominent recovery occurred in the shoulder-elbow FMA sub-score; in this segment a significantly greater improvement in the Active compared to the Sham group was observed up to two months after the intervention. Mean hold force during the first treatment session predicted the change in the total UE FMA score after treatment. Four-week visuo-motor training combined with tDCS showed no difference between the Active and Sham groups in the total UE FMA score, which may be explained by heterogeneity of the degree of re...Continue Reading

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