TY - JOUR
T1 - Vitamin D and physical activity status
T2 - Associations with five-year changes in body composition and muscle function in community-dwelling older adults
AU - Scott, David
AU - Ebeling, Peter Robert
AU - Sanders, Kerrie Margaret
AU - Aitken, Dawn
AU - Winzenberg, Tania
AU - Jones, Graeme
PY - 2015
Y1 - 2015
N2 - 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 25OHD (= or .05). Among participants with accelerometer data, these associations were generally mediated by higher levels of moderate/vigorous PA.
CONCLUSIONS:
High vitamin D status appears to enhance PA-related declines in body fat during aging, but the mechanism may be greater amounts of outdoor moderate/vigorous PA rather than a direct effect of 25OHD.
AB - 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 25OHD (= or .05). Among participants with accelerometer data, these associations were generally mediated by higher levels of moderate/vigorous PA.
CONCLUSIONS:
High vitamin D status appears to enhance PA-related declines in body fat during aging, but the mechanism may be greater amounts of outdoor moderate/vigorous PA rather than a direct effect of 25OHD.
UR - http://press.endocrine.org/doi/pdf/10.1210/jc.2014-3519
U2 - 10.1210/jc.2014-3519
DO - 10.1210/jc.2014-3519
M3 - Article
VL - 100
SP - 670
EP - 678
JO - Journal of Clinical Endocrinology and Metabolism
JF - Journal of Clinical Endocrinology and Metabolism
SN - 0021-972X
IS - 2
ER -