IRCT20140519017752N2 IRCT 2018-10-31 Ahvaz University of Medical Sciences Effects of exercises on balance and falls in patients with multiple sclerosis Effects of perturbation-based balance training versus traditional balance training on balance and risk of falling in people with multiple sclerosis 2018-11-22 anticipated 30 Complete https://irct.ir/trial/34786 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: Randomization will be performed using stratified permuted block method. The unit of randomization will be the individual, and participant will stratified by the age and gender. An statistical software will be used for generating random sequence, and then sealed envelopes will be used to determine the blocks. For allocation concealment, a person who is not a member of research team will perform the randomization, Blinding description: A physiotherapist who has no information about patients' allocation and treatment will perform the assessments. The participants will receive information about their treatment program, but they will not informed if they are in intervention or control group. A statistician who has no information about patients' allocation and treatment will perform the statistical analysis. N/A Multiple Sclerosis. Intervention 1: Intervention group: receive walking and balance exercises with perturbation; Participants received 20-minute individualized (1 trainer to 1 participant) training sessions, 3 times a week for 4 weeks. Intervention 2: Control group: receive walking and balance exercises without perturbation; Participants received 20-minute individualized (1 trainer to 1 participant) training sessions, 3 times a week for 4 weeks. No - There is not a plan to make this available Justification or reason for not sharing IPD is No detail