14 Days to HIIT Your Goal

1 4 36 Min Upper Body Workout with Weights This upper body routine will help you build trim and toned arms and shoulders, while burning pesky back fat. A few cardio bursts are included to help speed up fat loss, but the focus is on developing a strong and sculpted upper body. You’ll need a pair of dumbbells between 5-10 lbs. Choose a pair that makes the last 2 reps of each exercise feel challenging.