Abstract
Background: Studying relative anaerobic and aerobic metabolism contributions to total energy release during
exercise may be valuable in understanding exercise energetic demands and the energetic adaptations that occur in
response to acute or chronic exercise in obese adults. The aim of the present study is to evaluate the effects of
6 weeks of high-intensity training (HIT) on relative anaerobic and aerobic contributions to total energy release and
on peak power output during repeated supramaximal cycling exercises (SCE) in obese adults.
Methods: Twenty-four obese adults (body mass index = ± 33 kg.m−2) were randomized into a control group (n =12)
and an HIT group (n = 12). Accumulated oxygen deficits (ml.min−1) and anaerobic and aerobic contributions (%) were
measured in all groups before and after training via repeated SCE. In addition, the peak power output performed during
SCE was determined using the force-velocity test.