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Clinical Trial Summary

During middle-age, humans begin to lose muscle mass and strength. With increasing age the deterioration of muscle health is associated with a decline in quality of life and the loss of independence. β-hydroxy β-methylbutyrate (HMB) plus Vitamin D (VitD) have been proposed to increase skeletal muscle mass, contractile function and improve body composition but has yet to be evaluated in middle-aged women. The overall goal of this study is to determine the effects of HMB +VitD supplementation during 12 weeks of resistance exercise training or a non-exercise control on body composition, skeletal muscle size, and skeletal muscle function in middle-aged women.


Clinical Trial Description

To determine if HMB+VitD supplementation is an effective strategy to help prevent the loss of skeletal muscle size, skeletal muscle function and body composition in middle-aged women, forty eight women (45-60 yrs old) will be recruited to complete a 12-week intervention (n=12 per group; 4 groups). Participants will be randomized to complete a non-exercise control period or a resistance exercise training program. In a double-blinded fashion, participants in the non-exercise or resistance exercise groups will be randomized to consume either placebo or HMB+VitD. Before and after each intervention the investigators will evaluate skeletal muscle size, skeletal muscle function, and body composition. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03848741
Study type Interventional
Source University of Illinois at Urbana-Champaign
Contact Adam Konopka, PhD
Phone 1 217 300 5844
Email ark@illinois.edu
Status Recruiting
Phase N/A
Start date April 1, 2019
Completion date April 2021

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