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Experimental Aging Research
An International Journal Devoted to the Scientific Study of the Aging Process
Volume 50, 2024 - Issue 1
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Research Article

Cognitive Performance following Single- or Multi-Session Exercise Intervention in Middle Age: A Systematic Review

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Pages 28-64 | Received 03 Apr 2022, Accepted 14 Oct 2022, Published online: 17 Nov 2022
 

ABSTRACT

Background

Research in modifiable behaviors, like exercise, on risk for dementia is increasing. Although many studies focus on older adults, brain pathology for Alzheimer’s Disease can begin in middle age, suggesting an ideal target for intervention.

Methods

We conducted a systematic review from exercise intervention studies on cognitive function among healthy, middle-aged participants (45-65). We searched multiple databases (PubMed, PsycINFO, MEDLINE, Cochrane Central Register of Controlled Trials, Google Scholar) for studies using standard, validated, neuropsychological measures following either single- or multi-session interventions in cognitively-unimpaired, middle-aged adults.

Results

We identified 13 eligible studies. There was notable heterogeneity across studies, with varying design, measures, interventions, and results. Results from single-session studies showed improvement in response inhibition, while results for cognitive flexibility were mixed. No significant changes were found on measures of attention, working memory, or processing speed. Results from multi-session studies were more varied. Verbal memory was found to improve while performance on tests of attention and working memory, processing speed, and executive function were mixed.

Conclusion

Importantly, for both single-session and multi-session studies, there was no standard set of neuropsychological tests administered, making it more difficult to synthesize the findings into a single narrative. We end with a discussion on future directions and implementation.

Disclosure Statement

No potential conflict of interest was reported by the author(s).

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