Chest - Ball Dumbbell Press I

Starting Position: Position your upper back on an exercise ball; hold a dumbbell in your right hand above your chest with both feet flat on the floor. Keep a 90 degree bend in your knees. Movement: Exhale as you press the dumbbell upward to a straight-arm position. Inhale as you slowly lower the dumbbell to the starting position. Repeat with your left arm. Repeat as required.

Source: HiTech Trainer