Historic Cognitive Function Trajectories as Predictors of Sedentary Behavior and Physical Activity in Older Adults
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View abstract on PubMed
Summary
This summary is machine-generated.Cognitive decline in older adults was linked to reduced physical activity (PA). This suggests a potential reverse relationship where lower PA may influence cognitive health over time.
Area Of Science
- Gerontology
- Neuroscience
- Public Health
Background
- Cognitive function trajectories over a decade were examined in relation to later-life lifestyle behaviors.
- The study investigated the link between cognitive decline and physical activity, sedentary time, and sleep patterns.
Purpose Of The Study
- To determine if distinct cognitive function trajectories predict physical activity, sedentary time, and sleep in older adults.
- To explore potential reverse associations between lifestyle behaviors and cognitive health.
Main Methods
- Utilized data from 611 participants in the Adult Changes in Thought (ACT) cohort study.
- Employed accelerometers (activPAL, ActiGraph) for objective PA and ST measures, and self-reports for sleep outcomes.
- Applied growth mixture modeling to identify cognitive trajectory groups based on CASI-IRT scores.
Main Results
- Three cognitive trajectory groups were identified: average stable (56.1%), high stable (34.0%), and declining (9.8%).
- The declining cognition group exhibited significantly less stepping time, fewer daily steps, and reduced moderate-to-vigorous PA compared to the average stable group.
- No significant associations were found between cognitive trajectory and sedentary time or sleep outcomes.
Conclusions
- Declining cognitive function predicts lower physical activity in older adults, suggesting a potential reverse relationship.
- Limitations include single time-point outcome measures, a non-representative sample, self-reported sleep data, and a global cognition measure.
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