A Comparison of the Strength, Range of Motion and Balance in Active and Inactive Groups with Multiple Sclerosis

Document Type : Research Paper


1 Department of sport physiology and Biomechanics. Faculty of sport Sciences. University of Mazandaran. Babolsar. Iran

2 Department of Exercise Physiology, Faculty of Sport Sciences, University of Mazandaran, Babolsar, Iran

3 Department of Neurology, Mobility impairment Research Center, Health Research Institue, Babol University of Medical Sciences, Babol,Iran

4 Department of Sport Biomechanics and Motor Behavior, Faculty of Sport Sciences, University of Mazandaran, Babolsar, Iran


Multiple sclerosis affects normal life of the patients as it affects their motor performance. This study aimed to investigate strength, range of motion and balance in multiple sclerosis patients in the active and inactive groups. In this cross-sectional, ex-post facto study, 72 patients with MS and 38 healthy subjects as the control group from Mazandaran province participated voluntarily in this study. They were divided into four groups: active control (n=18), inactive control (n=20), active MS (n=27) and inactive MS (n=45). The maximum strength of quadriceps, trunk extensors, range of motion of quadriceps, hamstring, gastrocnemius and soleus muscles in both legs and balance were assessed through static and dynamic plantar pressure MAT tests. All findings were analyzed by one-way ANOVA test. The results showed significant differences in maximal strength (P=0.008), strength of the trunk extensors (P=0.001), static balance (P=0.006), COP changes with open eyes (P=0.001), and closed eyes (P=0.001) between the active and inactive groups. Contrary to the perception of those involved in MS (i.e. physical activity does not affect their functional or physiological symptoms), the results showed that given the difference between active and inactive subjects, it seems that physical activity in these patients minimizes those symptoms associated with the disease, especially in balance and strength.


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