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Evidence for an interaction between calcium intake and physical activity on changes in bone mineral density

✍ Scribed by Bonny L. Specker

Publisher
American Society for Bone and Mineral Research
Year
2009
Tongue
English
Weight
474 KB
Volume
11
Category
Article
ISSN
0884-0431

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✦ Synopsis

Results of trials on the effects of physical activity on bone mineral density (BMD) are conflicting. The current hypothesis was that calcium intake modifies the bone response to physical activity. Published trials on physical activity and bone density were reviewed, and the results of 17 trials are summarized. Physical activity has beneficial effects on BMD at high calcium intakes, with no effect at mean calcium intakes less than a mean of lo00 mg/day. The modifying effect of calcium intake on BMD among exercise groups is more pronounced in the lumbar spine than in the radius. This analysis may explain conflicting results of trials on physical activity and calcium effects on bone. Controlled trials designed to test adequately this hypothesis are needed. (

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