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Physical activity mediates the relationship between fruit and vegetable consumption and cognitive functioning: a
Alina Cohen1, Chris I Ardern1, Joseph Baker1
1School of Kinesiology and Health Science, York University, Toronto, ON M3J 1P3, Canada.
Journal of Public Health (Oxford, England)
|November 3, 2016
Summary
Physical activity and higher fruit and vegetable intake are linked to better cognitive function. These factors, along with lower body mass index, support brain health across age groups.
Area of Science:
- Gerontology
- Nutritional Science
- Public Health
Background:
- Excess adiposity is linked to cognitive impairments.
- Physical activity (PA) and fruit and vegetable consumption (FVC) may protect against cognitive decline.
Purpose of the Study:
- Investigate interrelationships between FVC, BMI, PA, and cognitive functioning.
- Examine these links in both younger and older adults.
Main Methods:
- Utilized cross-sectional data from 45,522 Canadian adults (≥30 years).
- Assessed cognitive function, PA, BMI, and FVC.
- Employed general linear models and mediation analyses.
Main Results:
- Higher BMI, lower PA, and lower FVC correlated with poorer cognitive function.
- PA mediated the relationship between FVC and cognitive function.
- Higher education and FVC were associated with better cognitive scores.
Conclusions:
- Higher PA levels are associated with better cognitive functioning in all adults.
- Increased daily FVC and education levels positively impact cognitive scores.
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