Fifteen men and 15 women completed a Body Pump workout in which Vo 2 and heart rate (HR) were measured continuously. The workout was performed at a mean Vo 2 of 14.8 ml· kg− 1-min− 1 (29.1% of Vo 2 peak), HR of 123.6 b· min− 1 (63.0% of HRmax), and caloric expenditure of 5.3 kcal· min− 1. Tracks using primarily the lower body had higher (p< 0.01) Vo 2, HR, kcal· min− 1, and weight lifted than tracks using primarily the upper body. Men had higher (p< 0.05) Vo 2, HR, percentage HRmax, total kilocalories, and kcal· kg− 1-min− 1 during Body Pump than women, but there were no differences (p> 0.05) for Vo 2 in ml· kg FFM− 1· min− 1 and kcal· kg FFM− 1· min− 1. Responses were below that necessary to elicit an aerobic-training effect and were lower than responses previously reported with circuit weight training.