Effects of resistance training on serum 25(OH) D concentrations in young men: a randomized controlled trial.

ABSTRACT: Background:Previous studies indicated that serum 25-hydroxyvitamin D [25(OH)D] concentrations are positively associated with physical activity levels independent of sun exposure. However, the effect of resistance training on serum 25(OH) D concentrations remains unclear. Thus, this study aimed to examine the effect of chronic resistance training on serum 25(OH) D concentrations and determine whether 25(OH) D concentration variations are influenced by body composition changes. Methods:Eighteen young men aged 19-39?years were randomly divided into a 12-week resistance training group (RT, n?=?9) and non-exercise control group (CON, n?=?9). The trial was undertaken in Shanghai University of Sport in Shanghai, China. Randomization and allocation to trial group were carried out by a central computer system. Serum 25(OH) D and intact parathyroid hormone concentrations were measured using commercially available enzyme-linked immunosorbent assay kits. Body composition was measured by dual-energy X-ray absorptiometry. Results:The average serum 25(OH) D concentrations were 26.6?nmol/L at baseline. After the 12-week intervention program, serum 25(OH) D concentrations significantly increased in both groups. Serum 25(OH) D concentrations at midpoint (6-week) increased significantly only in the CON group (P?

SUBMITTER: Sun X 

PROVIDER: S-EPMC7395973 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature