Cueller, W. Blizzard, L. Callisaya, M.L.Hides J., Jones, G. , Cicuttini F. Wluka, A. Ding C. Winzenberg T. Vitamin D supplements for trunk muscle morphology in older adults: secondary analysis of a randomised controlled trial Journal of Cachexia, Sarcopenia and Muscle, J. 2019 Feb;10(1):177-187 doi: 10.1002/jcsm.12364.


The effect of vitamin D supplementation on postural muscles of the trunk is of particular interest because low 25-hydroxyvitamin D [25(OH) D] levels are associated with decreased postural balance and increased risk of falls. Understanding the role of vitamin D supplementation plays in trunk muscle function of older adults is necessary, as this is a potentially modifiable factor to improve postural muscle function and decrease the risk of falling of older adults. The objective of this randomized controlled trial was to evaluate the effect of 12 months of vitamin D supplementation compared with placebo, on morphology and function of the trunk muscles of adults aged 50 to 79 years with low serum 25(OH) D levels.