It is important to know if exercise can increase MS disease activity.
In this study the investigators used a self-report questionnaire to examine the relationship of different levels of sports activity and relapses in 632 MS'ers.
No association between sports activity and clinical relapses was identified.
The group with highest physical activity tended to have the lowest number of relapses.
Interpretation: Physical activity has no significant influence on clinical disease activity.
Epub ahead of print: Tallner et al. Multiple sclerosis relapses are not associated with exercise. Mult Scler. 2011 Jul 6.