tDCS Associated With Locomotor Training on Functional Mobility of Cerebellar Ataxia

Cerebellar transcranial direct current stimulation (ctDCS) will be applied during 25 minutes at 2 mA of intensity. Anodal electrode will be positioned 1 cm below inion and cathodal electrode at right deltoid muscle.

The Treadmill Locomotor Training (TLT) will be performed through speed and step length progression protocol for 25 minutes and combined to ctDCS

Sham Cerebellar transcranial direct current stimulation (ctDCS sham) will be applied during 30 seconds at 2 mA of intensity. Anodal electrode will be positioned 1 cm below inion and cathodal electrode at right deltoid muscle. However, subjects will keep the placement of electrodes for 25 minutes to ensure stimulation's masking.

Cerebello-spinal transcranial direct current stimulation (csDCS) will be applied during 25 minutes at 2 mA of intensity. The anode was placed on the scalp over the cerebellum area (1 cm below the inion) and the cathode over the spinal lumbar enlargement (2 cm under T11)

Sham cerebello-spinal direct current stimulation (csDCS sham) will be applied during 30 seconds at 2 mA of intensity. The anode was placed on the scalp over the cerebellum area (1 cm below the inion) and the cathode over the spinal lumbar enlargement (2 cm under T11). However, subjects will keep the placement of electrodes for 25 minutes to ensure stimulation's masking.