The effect of cognitive rehabilitation on motor function and balance in individuals with multiple sclerosis: a systematic review.

Background: Balance and motor functions are associated with a complex sensory-cognitive-motor system that is not reliant on a single component. In people with Multiple Sclerosis (pwMS), deficits in cognitive domains may cause abnormal gait and balance disorders. Therefore, the impact of cognitive rehabilitation (CR) on motor and balance functions in pwMS was investigated.

Methods: Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, the review was registered in the Prospero system. A systematic search was conducted in PubMed, Web of Science, Scopus, and Cochrane Library until April 2024. Articles meeting the eligibility criteria were assessed and included in the review, those that evaluated the impact of CR on balance and motor functions. Bias in the studies was assessed by using the Risk of Bias-2 tool for randomized controlled trials. The articles' evidence level was evaluated using the Modified Bakker Scale.

Results: After searching four databases, eight studies were included in the review, comprising a total of 668 participants. The bias risks of the studies were categorized as low in two studies, unclear in five studies, and high in one study. The evidence levels of the studies showed high levels of evidence for balance and motor skills.

Conclusion: This review suggests that CR may have a positive impact on motor and balance performance in pwMS, underscoring the relationship between cognition and motor function. Further research is required to enhance this evidence base, particularly given the limited number of studies in this area.