Patients with MS between 0-5,5 score according to the Extended Disability Status Scale (EDSS) and healthy individuals of similar age and sex to patients will be included in the study. The balance, mobility, upper extremity performance, cognitive function, fatigue, physical activity level, mood, sleep quality, quality of life will be evaluated once.
We will use descriptive statistics and t-tests to compare demographic characteristics between groups and for the categorical variables chi-square. Effect of the group (MS patients or healthy controls), condition (Single task and dual-task conditions), and group × condition interaction will be compared using two-way repeated measures ANOVA. We will examine the correlations between fatigue severity, physical activity level, mood, sleep quality, quality of life using Pearson bivariate correlations. The significance level is set at p\<0,05.