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Relationships among age, exercise, health, and cognitive function in a British sample
C F Emery1, F A Huppert, R L Schein
1Department of Psychology, Ohio State University, Columbus 43210, USA.
The Gerontologist
|June 1, 1995
Summary
Younger age and better self-rated health are linked to faster reaction times. Exercise and health interact to influence cognitive function and may modify age-related cognitive decline.
Area of Science:
- Cognitive Neuroscience
- Gerontology
- Public Health
Background:
- Cognitive function declines with age, but lifestyle factors may mitigate this.
- Understanding the interplay of age, health, and physical activity is crucial for cognitive health.
Purpose of the Study:
- To investigate the relationship between age, self-rated health, and walking activity with cognitive functioning.
- To explore potential interactions between these factors in a large, diverse population.
Main Methods:
- Cross-sectional study of 6,979 adults (18-94 years) from British electoral registers.
- Face-to-face interviews for health status and cognitive testing, including simple reaction time (SRT) and choice reaction time (CRT).
- Hierarchical regression analyses to assess associations and interactions.
Main Results:
- Faster reaction time (RT) was associated with younger age and better self-rated health.
- Significant interactions were found between Age and Self-Rated Health, and Health Rating and Walking Activity for CRT.
- Age interacted with Walking Activity for both SRT and CRT.
Conclusions:
- Self-rated health and physical activity (walking) may modify age-related cognitive changes.
- Exercise and health status appear to have an interactive effect on reaction time speed.
- These findings highlight the potential for lifestyle interventions to support cognitive function across the lifespan.