a-tDCS Combined With Aerobic Exercise in Healthy Individuals

Real tDCS (TCT Research Limited, Hong Kong); 3 times a week on alternate days for consecutive 6 weeks. The active session of tDCS will consist in applying anodal stimulation over left M1 (C3 according to the 10-20 international EEG placement) and the cathodal stimulation over right supraorbital area (Fp2 according to the 10-20 international EEG placement), and to inject 2 mA for 20 minutes through sponge electrodes (35 cm²) placed on the scalp.

Sham current (TCT Research Limited, Hong Kong); 3 times a week on alternate days for consecutive 6 weeks. The sham tDCS will use the same montage and device but direct current will only be injected for 30 seconds, with a ramp-up and ramp-down 15 seconds period, to mimic the somatosensory effects of active tDCS.

The Exercise intervention will include only aerobic exercise 3 times a week on alternate days for consecutive 6 weeks. The program will last 20 minutes.