Exercise trials report cognitive test gains in older adults with Alzheimer's
Pooled scores favored exercise, while findings for individual exercise formats and cognitive skills were less consistent.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
The review found improvements in verbal fluency, spatial working memory and executive-function test scores among older adults with Alzheimer's disease who took part in exercise trials. Results varied across programs and subgroups, with some analyses failing to show clear benefits. These test findings do not establish better independence or slower disease progression.
The abstract omits control conditions, test details and overall follow-up duration. The authors caution that subgroup evidence is limited and varies across studies.
What researchers found
Verbal fluency: standardized mean difference
The group difference is measured relative to score variability, in standard deviations, not test points or percentages. Positive favors exercise; control conditions and pooled assessment timing were not specified.
What improved overall
The review examined verbal fluency, spatial working memory and executive functions. Pooled findings favored exercise across these domains, but the abstract does not connect the standardized score changes with everyday activities.
Subgroup limits
Cycling showed no statistically significant executive-function effect; open-chain programs did not demonstrate spatial working memory gains. Programs up to 12 weeks had minimal effects on inhibitory control; participants with under 10 years of education had limited verbal-fluency gains. Subgroup evidence remains limited.
The original publication
The effect of exercise on the improvement of verbal fluency, spatial working memory, and the three major executive functions in elderly alzheimer's patients: a systematic review and meta-analysis.
Liu X, Casasola JCES
Neurol Sci · 2025
- PubMed ID
- 41123759
- Record checked
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