Watch 15-Minute Cardio Shape-Up 4.0 Workout

No equipment needed. Tip: Complete Series 1.0, 2.0 and 3.0 for 4 weeks each prior to Series 4.0. Burn mega calories, work muscles to exhaustion and lose fat with this quick, challenging cardio & core-driven workout. Workout Schedule - Mon: 15-min Cardio Burst 4.0, Tues: 15-min Strength & Sculpt 4.0, Wed: 15-min Cardio Core 4.0, Thurs: 15-min Sweat & Tone 4.0, Fri: 15-min Cardio Shape-Up 4.0.