This exercise is similar to the Single Arm Pronated Triceps Extension except the movement is over the head instead of across the chest. · Lie flat in a bench with your head at one end and your feet placed firmly on the floor. · Grasp a dumbbell in one hand and raise it to a position above your chest, with your palm facing the floor. · Place your free hand under the shoulder to support your other arm. Slowly bend your elbow over your head with the weight moving only your forearm and elbow. · Return to the starting position and repeat with your other arm.