Excess post-exercise oxygen consumption response to a bout of resistance exercise

Abstract

To examine the excess postexercise oxygen consumption (EPOC) response following a bout of heavy resistance exercise (HRE), seven healthy males (age = 22 f 3 yr; height = 177 -+ 8 cm; mass = 83 f 10 kg, percent body fat = 10.4 f 4.2%) who weight trained recreationaly, engaged in a 31-minute bout of HRE. The bout consisted of four circuits of bench press, power cleans, and squats, selected to recruit most major muscle groups. Each set was performed using the subject's predetmnined ten-repetition maximum and continued until failure. Each set was followed by a two-minute rest interval. Oxygen consumption (Va)m measurements were obtained at regular intervals throughout the day, before and after HRE (34 h pm, 29 h pre, 24 h pre, 10 h pre, 5 h pre, immediate post, 14 h post, 19 h post, 24 h post, 38 h post, 43 h post, 48 h post). Postexercise V02 measurements were compared to the baseline measurements that corresponded with the same time of day. A repeated measures ANOVA revealed that EPOC was significantly elevated @ 5 0.05) immediately, 14.19, and 38 hours post-exercise. Mean daily V q values for both post-exercise days were also significantly elevated above the baseline day. These results suggest that EPOC duration and magnitude following HRE may exceed the EPOC produced by following moderate aerobic exercise. Furthermore, the cumulative energy expenditure as a result of EPOC following HRE may exceed the combined total energy expended during and after aerobic exercis