30-Minute Abs: Week 2, Workout IV
One-Arm Overhead Lunge
Sets: 3-4 Reps: 4-6 Rest: 90 Seconds
Hold a dumbbell with one hand straight overhead . Step forward with your opposite leg and lower your body until your front thigh is parallel to the floor . Push off from your front foot to return to the starting position. That's one rep.