Rumble Training stays true to the Rumble Boxing class structure of 10 three-minute “rounds” over a 50-minute session, but rather than boxing you can expect five rounds on the treadmill, five rounds on the floor. The treadmill rounds mix up interval running with hill inclines, with a superstar coach who also plays the role of DJ and MC. During the strength rounds, you can expect dumbbell exercises, body weight exercises and plyometrics.