4.5 Article

Relationships of food security with skeletal muscle mass and handgrip strength by sex

Journal

NUTRITION
Volume 102, Issue -, Pages -

Publisher

ELSEVIER SCIENCE INC
DOI: 10.1016/j.nut.2022.111746

Keywords

Skeletal muscle mass; Handgrip strength; Food security; Sex; Sarcopenia

Funding

  1. Inje University Busan Paik Hospital Research Grant

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This study evaluated sex differences in the relationship of food security level with skeletal muscle mass and handgrip strength, finding that low food security was associated with lower muscle mass and strength in men under 60 years old, but not in men over 60 years old or women of all ages.
Objectives: This study aimed to evaluate sex differences in the relationships of food security level with skeletal muscle mass and handgrip strength. Methods: Skeletal muscle mass (appendicular skeletal muscle mass [ASM] adjusted for squared height [ASM/ height(2)] or body mass index [ASM/BMI]), handgrip strength, food security level (high, marginally, and low secure), and covariates (age, education, household income, chronic diseases, smoking status, alcohol use, and physical activity) were assessed in participants aged 19 to 80 y using Korea National Health and Nutrition Examination Survey data (4481 men and 6320 women from the 2008-2011 data, 9588 men and 12 981 women from the 2014-2018 data). A complex sample design general linear model was performed. Results: After adjusting for covariates, the interaction between food security and sex was significant for associations with ASM/height2 (P = 0.001) and handgrip strength (P < 0.001), but not with ASM/BMI. After adjusting for covariates, ASM/height(2) and ASM/BMI were significantly lower in men aged < 60 y from lower food -security households than those from high food-security households, but not in men aged >= 60 y or women of all ages. After adjusting for covariates, men and women aged < 60 y and >= 60 y from lower food-security households had significantly weaker handgrip strength than those from high food-security households. Conclusions: Low food security was associated with lower muscle mass and strength in men aged < 60 y and weaker muscle strength in men aged >= 60 y and women of all ages. These results suggest sex differences in the relationships of food security with muscle mass and strength in individuals aged < 60 y. (c) 2022 Elsevier Inc. All rights reserved.

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