Sit down on an incline bench with the incline set anywhere between 30 to 60 degrees while holding a dumbbell on each hand. Tip: You can change the angle to hit the muscle a little differently each time.
Extend your arms straight in front of you and have your palms facing down with the dumbbells raised about 1 inch above your thighs. This will be your starting position.
Slowly raise the dumbbells straight up until they are slightly above your shoulders, while keeping your elbows locked. Squeeze at the top for a second and make sure you breathe out during this portion of the movement. Tip: Keep your head resting down against the bench and your legs on the floor at all times.
Lower the arms back to the starting position as you inhale.