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Greater physical activity is associated with better cognitive function in heart failure
Krysten K Fulcher1, Michael L Alosco1, Lindsay Miller1
1Department of Psychology, Kent State University.
Summary
Physical activity is linked to better cognitive function in heart failure (HF) patients. Increased daily steps and moderate-to-vigorous activity correlate with improved executive function, attention, and processing speed in individuals with HF.
Area of Science:
- Cardiology
- Neuroscience
- Gerontology
Background:
- Heart failure (HF) affects nearly 6 million Americans, with up to 80% experiencing cognitive deficits.
- Physical inactivity is prevalent in HF patients, but its role in cognitive dysfunction is not well understood.
Purpose of the Study:
- To investigate the association between physical activity levels and cognitive function in older adults with HF.
- To determine if physical activity is an independent predictor of cognitive function in this population.
Main Methods:
- 93 older adults with HF underwent neuropsychological testing and cardiac/physical activity assessments.
- HF severity was measured using impedance cardiography.
- Physical activity was quantified using Actigraph accelerometers, measuring daily step count and moderate-vigorous activity duration.
Main Results:
- Greater physical activity (higher step count, more moderate-vigorous activity) was significantly associated with better executive function and attention.
- Increased physical activity also correlated with improved processing speed and overall cognitive screening scores.
- These associations remained significant after controlling for factors like age, sex, hypertension, diabetes, and HF severity.
Conclusions:
- Physical activity is an independent predictor of cognitive function in individuals with heart failure.
- Further research is warranted to elucidate the mechanisms underlying this relationship.
- Intervention studies are needed to assess if promoting physical activity can mitigate cognitive decline in HF patients.
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