Effect of Galvanic Vestibular Stimulation on Cortical Excitability and Hand Dexterity in Multiple Sclerosis Patients

This study will be conducted to investigate the following: 1. The impact of implementing GVS in MS rehabilitation on cortical excitability. 2. The influence of GVS on upper limb function in patients diagnosed with MS. Patients will be randomly assigned to a control group (Conventional Physical Therapy program = CPT) and a study group (Galvanic Vestibular Stimulation = GVS in addition to the conventional program) subsequently. CPT will perform moderate intensity aerobic training (arm ergometer) and task oriented hand manipulation training, while GVS will receive Galvanic Vestibular Stimulation will be added to the conventional physical Therapy program.