This circuit program focuses the majority of training on your upper body. There is, however, some minor lower body work. This is a result of short cardio intervals in each session, such as jumping rope, biking and mountain climbers. Session 1: offers 11 different exercises using 4 exercise circuits followed by 1-minute cardio interval. Workout time is about 42-minutes. Session 2: contains 11 different exercises using 4 exercise circuits followed by 1-minute cardio interval. Workout time is about 40-minutes. Session 3: this routine offers 9 different exercises using 3 exercises circuits but they are repeated 4 rather than 3 times using 1-minute cardio intervals. Workout time is about 25-minutes. Stay Strong Together, MICHAEL WOOD, CSCS JEFIT