Cognitive Impairment Highly Prevalent and Associated With Reduced Physical Function in Older Veteran Clinical Exercise Program.
Stacy Schantz Wilkins, Jin J Zhou, Rebecca J Melrose and 15 others
PMID 41477090WHAT IT FOUND
Most veterans entering this exercise program scored in the mild cognitive impairment range despite no dementia diagnosis.
Lower leg strength and walking endurance were significantly associated with lower cognitive scores, while balance and arm strength were not.
Key findings
0161% of participants scored below the cutoff for mild cognitive impairment on the telephone Montreal Cognitive Assessment.
02Chair stand performance, a measure of lower extremity strength, was positively associated with scores on both global cognition and executive function tests.
03Six-minute walk distance, a measure of endurance, was significantly related to global cognition but not to executive functioning.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTsWhat it means for SLPs
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What it does not show
The study used a cross-sectional design, so it cannot prove that physical decline causes cognitive impairment or vice versa. 6-minute walk data was missing for 74% of participants, limiting the robustness of endurance findings to a selected subgroup. The tMoCA is a shorter version of the standard MoCA and lacks naming and visuospatial items, potentially affecting sensitivity. Most assessments were conducted virtually or by phone due to the pandemic, which may differ from in-person clinical evaluations. The sample consisted entirely of veterans enrolled in a specific exercise program, which may not represent the general older adult population.
Declared interests
The investigators declared no financial or nonfinancial conflicts of interest.
The easy way to misread this
Do not assume that poor physical function in these patients is solely due to age or general deconditioning. The strong link between low leg strength and cognitive scores suggests that unrecognized mild cognitive impairment may be a barrier to exercise performance and safety.
Summarised by AI from the full paper, without a clinician reviewing it. Check it against the source before it changes what you do. Read it on PubMed →