Methodological considerations and limitations
CORTEX
Several methodological concerns and limitations in this study warrant discussions. One of the main findings of this study is that during the first minutes of Active and Sham tDCS, H-reflex size increased. Since several prior studies, in which soleus reflexes were repeatedly elicited over the course of 30–40 min, found no systematic changes in soleus reflex size (Thompson et al. Another methodological concern is that other tDCS montages (other than what we used in this study) may target the leg motor cortex more effectively (Foerster et al. The findings might have also differed if the participants had been walking on a treadmill during tDCS, rather than standing (Fernandez-Lago et al. 