The Asian Journal of Kinesiology (Jul 2018)
Effects of 60% VO2R Intensity Equicaloric Intermittent and Continuous Exercise on EPOC and Fat Oxidation
Abstract
OBJECTIVES The purpose of this study was to compare excess post-exercise oxygen consumption (EPOC) and energy expenditure during (30min) and following (60min) exercise for a 30min continuous bouts of treadmill exercise at 60%VO2R compared to three 10min bouts of intermittent treadmill exercise at the same intensity. METHODS Seventeen fit college-aged males (n=7) and females (n=10) volunteered to participate. Treadmill exercise bouts were separated by 48h and performed in a randomized counter-balanced order. The 30min continuous bout of exercise included a 60min recovery and each of the three 10min bouts included 20min of recovery. RESULTS During the rest and exercise, oxygen uptake (VO2) and exercise expenditure (EE) were not significant difference between the intermittent and continuous trails. But during the recovery, VO2 and EE were significantly higher intermittent than continuous trails in male and female (p<.001, p<.001), respectively. During the 30min exercise, VO2 and EE were not significant difference between the intermittent and continuous trails. However, during the 60min recovery, VO2 and EE were significantly higher intermittent than continuous trails in male and female (p<.001, p<.001), respectively. Total VO2 and EE were significantly higher intermittent than continuous trails in male and female (p<.001, p<.029), respectively. Finally, during the 30min exercise, fat oxidation rate was significantly higher intermittent than continuous trails. However, during the 60min recovery, fat oxidation rate was significantly higher continuous than intermittent trails in male and female (p<.001, p<.001), respectively. CONCLUSIONS These results suggest that the moderate intensity intermittent exercise can contribute to greater EPOC and exercise-induced energy expenditure compared with a equicaloric continuous exercise.
Keywords
