Intervention procedure tDCS will be administered during the therapeutic intervention sessions using the tDCS device (Trans Cranial Technologies, USA), with two sponge (non-metallic) surface electrodes measuring 5 x 7 cm2 moistened with saline solution between 15 and 140 milimoles. The participants will be randomly allocated to two types of treatment: active and sham tDCS. Anodal tDCS will be administered over the primary motor cortex, somatosensory cortex, and the visual cortex. For stimulation of the primary motor and somatosensory cortices, the anode will be positioned over the area corresponding to the lower limbs (Cz and Pz, respectively), and the stimulation of the visual cortex, the anode will be positioned over Oz. During all three stimulations, the cathode will be positioned in the medial supraorbital region. A current of 2 milliampere (mA) will be used for twenty minutes during each proprioceptive exercise session. For sham tDCS, the electrodes will be positioned as described, but the stimulator will only be switched on for the first 30 seconds, giving the participant the initial sensation of tDCS, but no active stimulation will be administrated throughout the remainder of the session.