Serum insulin-like growth factor I in healthy older men in relation to physical activity.


OBJECTIVE The serum level of insulin-like growth factor-I (IGF-I) is lower in old men than in young men. It has been theorized that this change may result in part from the lower level of physical activity in the elderly. The objective of the present study was to test this theory. DESIGN Cross-sectional study. SETTING Community-dwelling healthy men… (More)


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