Feasibility outcome will be measured with a specific questionnaire. Treatment efficacy outcome measures will be clinical test for gait speed (10m walking test), walking endurance (six minute walking test), balance (Dynamic Gait Index) and mobility (Time Up and Go Test); a structured interview for the performance(Lower Extremity Mal); self-assessment questionnaire for motor fatigue (Fatigue Severity Scale FSS), multiple sclerosis physical and psychological impact (multiple sclerosis impact scale MSIS-29), walking ability (multiple sclerosis walking scale MSWS-12).