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Cognitive ability does not predict objectively measured sedentary behavior: Evidence from three older cohorts
Iva Čukić1, Richard Shaw2, Geoff Der1
1Centre for Cognitive Ageing and Cognitive Epidemiology, Department of Psychology, University of Edinburgh.
Psychology and Aging
|April 17, 2018
Summary
This study found no significant link between cognitive ability and sedentary behavior in older adults. Objectively measured sedentary time did not correlate with cognitive measures across different life stages in three cohorts.
Area of Science:
- Gerontology
- Cognitive Science
- Behavioral Science
Background:
- Higher cognitive ability correlates with increased physical activity.
- Associations between cognitive ability and sedentary behavior are less understood.
- This research investigates cognitive ability's predictive power on sedentary behavior in older age.
Purpose of the Study:
- To examine the relationship between historic and contemporaneous cognitive ability and objectively measured sedentary behavior in older adults.
- To determine if cognitive performance across the lifespan predicts sedentary behavior patterns in later life.
- To explore associations between cognitive function and sedentary time and sit-to-stand transitions.
Main Methods:
- Utilized data from three distinct cohorts: Lothian Birth Cohort (1936) and two West of Scotland Twenty-07 cohorts (1950s and 1930s).
- Employed regression models to analyze associations between cognitive tests (simple reaction time, choice reaction time) and 7-day objective sedentary behavior measures.
- Included meta-analytic estimates for reaction time measures across all participants (n=700).
Main Results:
- A significant relationship between simple reaction time and later sedentary time was found only in the youngest cohort (Twenty-07 1950s), but this was not robust after adjustments.
- No significant associations were observed between any cognitive measures and sedentary behavior in the older cohorts (LBC1936, Twenty-07 1930s).
- No cognitive tests were associated with the number of sit-to-stand transitions, and meta-analyses of reaction time measures were also non-significant.
Conclusions:
- The study found no consistent evidence linking cognitive ability, assessed at various life stages, with objectively measured sedentary behavior in older adulthood.
- Cognitive change from childhood to older age did not predict sedentary behavior.
- Findings suggest that cognitive function may not be a significant predictor of sedentary behavior in later life.
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