Dumbbell Overhead Extension One Arm
Hold dumbbell and stand in good body alignment (abs tight, chest up, back straight) with feet in comfortable position. Position arm overhead and perpendicular to the floor. keep opposite arm stationary. In a controlled motion, keeping upper arm perpendicular to the floor, bend elbow to lower dumbbell behind head until forearm is approximately parallel to the floor. While maintaining the controlled motion, return dumbbell to starting position. Contract triceps fully, without compromising form. Do not allow muscle to relax before next repetition.