Week 5 Day 1 - Chest/Triceps – LIIFT 50/50: This calorie-incinerating combo workout starts with heavy lifting and then shifts to high-intensity cardio to help build your chest and triceps while burning fat all over. LIIFT4 combines heavy lifting and intense cardio to transform your body in 4 days a week. And with 32 unique, real-time workouts, you’ll never get bored, because you’ll never do the same one twice.