Effects of exercise in people with multiple sclerosis: a systematic review and meta-analysis.

Researchers pooled data from 40 randomized controlled trials involving over 2,100 people with multiple sclerosis to see whether exercise could help with balance, walking, fatigue, and quality of life. The short answer is yes: across multiple measures, exercise showed meaningful benefits. Balance improved by an average of 3.77 points on the Berg Balance Scale, walking speed got faster, people could walk further in six minutes, fatigue dropped, and quality of life scores rose by about 12 points on the MS-specific scale.

The catch is that different types of exercise worked better for different things: resistance training appeared somewhat more effective for fatigue, while aerobic exercise showed greater benefits for quality of life. Younger participants also saw larger improvements in fatigue compared to older ones.

This large review of multiple studies found that exercise can help improve several things that matter in daily life with MS: how steady you feel on your feet, how far and how fast you can walk, your energy levels, and your overall sense of wellbeing. The improvements were real enough to notice in everyday activities, though the size of the change varied depending on what you were measuring and what type of exercise was done.

Different exercises seemed to help different problems most, so there is probably no single magic approach that works the same way for everyone. The research suggests that resistance exercise (like working with weights or bands) may be particularly useful if fatigue is your main concern, while aerobic activities (like walking, cycling, or swimming) may have a stronger effect on how you feel overall.

Younger people in these studies tended to see bigger improvements in fatigue than older people, which is something worth knowing even though we do not fully understand why.

This is a summary of research, not medical advice. Talk to your own healthcare provider about anything affecting your care.

This meta-analysis provides reasonably solid evidence that exercise interventions produce measurable gains across the outcomes that matter most in MS rehabilitation. The effect sizes are modest but clinically meaningful: a 3.77-point improvement on the Berg Balance Scale, a 1.33-second reduction in Timed Up and Go, and nearly 26 meters gained on the six-minute walk test represent tangible functional changes.

The fatigue reduction of 4.34 points is notable given how resistant MS-related fatigue has traditionally been to intervention. The subgroup findings suggest that exercise modality selection matters: resistance training showed somewhat greater effectiveness for fatigue reduction, while aerobic training appeared more beneficial for quality of life domains.

Age emerged as a moderating variable for fatigue outcomes, with younger participants demonstrating larger improvements, which may reflect differences in baseline function, exercise tolerance, or neurobiological response to training. The evidence base is reasonably robust, though future work would benefit from clarifying optimal exercise dosing, duration, and the mechanisms driving age-related differential response.