http://theconversation.com/old-man-strength-is-dad-really-stronger-62846
Citando:
"Performing regular weight training into older age also increases strength and muscle bulk. In fact, weight training in older adults has been shown to increase hormone levels to an equivalent level to that of untrained younger adults. But the fact remains that these gains will probably never reach those of a younger adult starting and performing the same training at the same time. There will almost always be a discrepancy in strength, power, coordination and muscle mass, all else being equal.*