Age attenuated response to aerobic conditioning in postmenopausal women

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Abstract
The decline in aerobic capacity does not appear to be linear across age. To explore this relationship, we examined the maximal cardiorespiratory response of 251 postmenopausal women to 6 months of exercise training: control (no exercise), or exercise at 4, 8, or 12 kcal/kg/week (KKW). Exercise intensity was set at a heart rate associated with 50% of peak VO2peak and women were stratified by age into three groups: 60 years. Differences in outcomes among groups were tested by ANOVA and the results were presented as adjusted least squares means with confidence intervals. At baseline participants who were >60 years had a lower VO2peak than those 60 years [0.02 (−0.03, 0.08)]. For 12 KKW group, the changes were: 60 years [0.05 (−0.01, 0.10)]. Our data show that despite similar exercise intensities, age plays a significant role in the maximal cardiorespiratory response to exercise training regardless of training volume in women who have completed menopause.