科研之友
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摘要
Alteration in body composition, physical function, and substrate metabolism occur with advancing age. These changes can be attenuated by exercise. This study evaluated whether master athletes (MA [n=20]) would have improved exercise capabilities, anthropometry, and hormone profiles when compared with age-matched sedentary counterparts (S [n=28]). The MA group was predominantly aerobically trained with some resistance exercise incorporated in their routine. The VO2max, peak power output, and salivary testosterone was significantly higher (p %26lt; 0.05) in the MA group, while diastolic blood pressure, systolic blood pressure, and body fat percentage were lower (p %26lt; 0.05). Cortisol, fat free mass, (FFM) and total body mass were not significantly different between groups. Salivary testosterone correlated positively with VO2max (r(2) = .320), suggesting that increased aerobic capacity is linked with higher concentrations of testosterone. These results suggest that life-long exercise is associated with favorable body composition and attenuation of the age related decline in testosterone.
- 出版日期2013-10-1
