Purpose of Exercise: To work the rear and side deltoids This exercise is great for both your rear and side deltoids. It should only be done with a moderate weight and performed very strictly.
Using a incline board such as a sit up bench set at an angle. Lie on your side with your head raised. Holding a dumbbell in one hand lower it almost to the floor. Then raise up all the way over your head, keeping your arm straight. Twist your hand slightly while lifting, turning the thumb down. Do both arms this way.