High-intensity interval training, or HIIT, has earned its place as one of the most effective ways to get a total-body workout with both cardio and strength-training. The workouts at MADabolic promise that and more with unique fat-blasting HIIT routines. MADabolic trainers carefully design each targeted work-out to include the three tenets of their  "protocol M.A.D"—Momentum, Anaerobic, and Durability. Arrive ready to move, and expect training ropes, kettlebells, sledge hammers, and bear crawls as you awaken the primal athlete within.