Body Innovations' boot-camp classes deviate from typical military-style workouts thanks to a jovial workout atmosphere. A passionate certified trainer helms each session, guiding anywhere from five to 25 exercisers through one-hour workouts. By combining cardio and body-weight resistance training into a single session, trainers create workouts that torch more calories than a treadmill perched atop an active volcano. A spacious gym floor affords each participant ample room to perform routines, and the camaraderie of a group environment can help exercisers push through a rigorous session. Classes meet on a six-day schedule, with classes in the early morning and early evening.