tDCS to Increase Aerobic Performance in Runners

The active session of tDCS will consist in applying two anodes over M1 bilaterally (C3 and C4 according to the 10-20 international EEG placement) and the cathodes over the occipital areas (O1 and O2), and to inject 2 mA for 20 minutes through sponge electrodes (35 cm²) placed on the scalp using the Startsim 8 (Neuroelectrics, Barcelona). 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.