Dietary Zinc Intakes Are Associated With Skeletal Muscle Mass and Strength in Children and Adolescents: Zinc and Muscle in Children

Author:

Kong Fan-Shuo1,Ma Chun-Ming1ORCID

Affiliation:

1. Department of Endocrinology, The First Hospital of Qinhuangdao, Qinhuangdao, China

Abstract

The purpose of this study was to evaluate the relationship between dietary zinc intakes and skeletal muscle mass and strength in children and adolescents. A retrospective study was conducted using data on United States adolescents aged 8 to 19 years. Data were extracted from the National Health and Nutrition Examination Survey 2011-2014 cycles. Subjects were divided into 3 groups based on the tertiles of dietary zinc intakes. The levels of appendicular skeletal muscle mass divided by weight (ASM/Wt, %) and grip in subjects with the highest tertile were higher than those in subjects with the middle and lowest tertiles ( P < .05). Dietary zinc intakes were positively correlated with ASM/Wt ( r = .221, P < .001) and grip ( r = 0.169, P < .001). After a multivariate analysis, dietary zinc intakes were still significantly associated with ASM/Wt ( β = 0.059, P < .001) and grip ( β = 0.245, P < .001). The present study demonstrates that dietary zinc intakes were positively associated with skeletal muscle mass and strength in children and adolescents.

Publisher

SAGE Publications

Subject

Pediatrics, Perinatology and Child Health

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