Vitamin D and Physical Activity Status: Associations With Five-Year Changes in Body Composition and Muscle Function in Community-Dwelling Older Adults
David Scott, Peter R Ebeling, Kerrie M Sanders, Dawn Aitken, Tania Winzenberg, Graeme Jones
The Journal of Clinical Endocrinology & Metabolism | ENDOCRINE SOC | Published : 2015
CONTEXT: High vitamin D and physical activity (PA) levels are independently associated with improved body composition and muscle function in older adults. OBJECTIVE: The objective of this study was to investigate the interaction of 25-hydroxyvitamin D (25OHD) and PA status in maintenance of body composition and muscle function in older adults. DESIGN AND SETTING: This was a 5-year prospective population-based study of Australian community-dwelling older adults. PARTICIPANTS: Participants in the study included 615 community-dwelling volunteers aged 50 years old or older [61.4 ± 6.9 (mean ± SD) y; 48% female] randomly selected from electoral rolls and categorized according to baseline serum 25..View full abstract
This work was funded by the National Health and Medical Research Council of Australia; the Arthritis Foundation of Australia; the Tasmanian Community Fund; and the University of Tasmania Institutional Research Grants Scheme.