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Associations between dairy consumption and the physical function in Japanese community-dwelling older adults: The
Ryo Miyazaki1, Takafumi Abe2, Naoki Sakane3
1Faculty of Human Sciences, Shimane University, 1060 Nishikawatsu-cho, Matsue-shi, Shimane 690-8504, Japan; Center for Community-Based Healthcare Research and Education (CoHRE), Head Office for Research and Academic Information Shimane University, 223-8 Enya-cho, Izumo-shi, Shimane 693-8501, Japan.
Objectives:
We investigated sex differences in the associations between dairy consumption and the physical function among community-dwelling older adults.
Methods:
Six hundred and fifty-six older adults (75.6 ± 6.4 years old) participated in this study. Dairy consumption (5-item Likert score) and the physical function (gait speed, handgrip strength, and skeletal muscle mass) were measured. The linear and quadratic associations between dairy consumption and the physical function measures were examined by a multiple linear regression analysis adjusted for covariates.
Results:
Among women, an increased dairy consumption was significantly linearly associated with greater hand-grip strength and faster gait speed (both p<0.05) after adjusting for covariates. Among men, dairy consumption was not associated with the physical function measures. Dairy consumption was not associated with the muscle mass in either sex.
Conclusions:
Increased dairy consumption was associated with a superior physical function in older women.
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