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Diet quality in late midlife is associated with faster walking speed in later life in women, but not men: findings from a prospective British birth cohort
- Source :
- The British Journal of Nutrition
- Publication Year :
- 2019
- Publisher :
- Cambridge University Press, 2019.
-
Abstract
- Healthy diet has been linked to better age-related functioning, but evidence on the relationship of diet quality in late midlife and measures of physical capability in later life is limited. Research on potential sex differences in this relationship is scarce. The aim was to investigate the prospective association between overall diet quality, as assessed by the Healthy Eating Index-2015 (HEI-2015) at 60–64 years and measures of walking speed 7 years later, among men and women from the Insight 46, a neuroscience sub-study of the Medical Research Council National Survey of Health and Development. Diet was assessed at 60–64 years using 5-d food diaries, from which total HEI-2015 was calculated. At 69–71 years, walking speed was estimated during four 10-m walks at self-selected pace, using inertial measurement units. Multivariable linear regression models with sex as a modifier, controlling for age, follow-up, lifestyle, health/social variables and physical performance, were used. The final sample consists of 164 women and 167 men (n 331). Women had higher HEI-2015 and slower walking speed than men. A 10-point increase in HEI-2015 was associated with faster walking speed among women (B 0·024, 95 % CI 0·006, 0·043), but not men. The association remained significant in the multivariable model (B 0·021, 95 % CI 0·003, 0·040). In women, higher diet quality in late midlife is associated with faster walking speed. A healthy diet in late midlife is likely to contribute towards better age-related physical capability, and sex differences are likely to affect this relationship.
- Subjects :
- Male
medicine.medical_specialty
030309 nutrition & dietetics
Epidemiology
Medicine (miscellaneous)
Affect (psychology)
Cohort Studies
03 medical and health sciences
0302 clinical medicine
Sex Factors
Physical capability
Medicine
Humans
030212 general & internal medicine
Multivariable model
Healthy Eating Index
Prospective Studies
Nutrition
Aged
0303 health sciences
Nutrition and Dietetics
Multivariable linear regression
business.industry
Dietary Surveys and Nutritional Epidemiology
Full Papers
Middle Aged
Healthy diet
United Kingdom
Diet
Walking Speed
Preferred walking speed
Diet quality
Female
Diet, Healthy
Birth cohort
business
Demography
Subjects
Details
- Language :
- English
- ISSN :
- 14752662 and 00071145
- Volume :
- 123
- Issue :
- 8
- Database :
- OpenAIRE
- Journal :
- The British Journal of Nutrition
- Accession number :
- edsair.doi.dedup.....c180d1801cca79224711391ae8611c35