Large muscles are worked first, ancillary muscles groups later. Core/Abdominal and cardio worked are included throughout the workout instead of the traditional post or pre-workout inclusion. Exercises and body parts are worked in small groupings or circuits. The groupings are performed several times, allowing each participant to rest or modify as needed. The workout is challenging but doable for most people. It can include anything from weight training to bodyweight movements, from jump rope to box jumps, from sprinting to planking and is called ULTIMATE Muscle Confusion because it is unique for EVERY workout.