EN
W e compared the effects of 16-week-training on
rest metabolic rate, aerobic power, and body fat, and the
post-exercise effects upon rest oxygen uptake and respiratory
exchange ratio in overweight middle-aged females.
Twenty nine overweight women (BMI 29.9 ± 1.2 kg*m-²)
participated in training (3 days a week). The subjects
were divided onto groups of aerobic (AT) and strength
(ST) training. The results showed that the total body mass
decrease and VO2 max increase did not differ in both
groups. Decrease in waist circumference after 16 weeks
was higher in the ST group. In the ST group fat-free mass
increased during the first 8 weeks. Rest metabolic rate was
increased significantly at 16th week compared to initial
value in ST group only. Significant increase in post-exercise
resting VO2 and respiratory exchange ratio at 12
and 36 h was observed after the strength training session
only. Increase in rest metabolic rate and post-exercise rest
energy expenditure occurred after strength training but
not after aerobic training despite the similar increase in
aerobic power. The effect of 8-16 weeks of strength training
on body mass decrease was higher in comparison to
aerobic training.