Performing the: A Step-by-Step Tutorial Dumbbell One Arm Press on Exercise Ball
Lean back on the exercise ball until your upper back and shoulders are resting on the ball, your knees are bent at a 90-degree angle, and your body forms a straight line from your knees to your shoulders.
Hold the dumbbell at shoulder level with your arm bent at a 90-degree angle.
Press the dumbbell straight up until your arm is fully extended, ensuring to keep your wrist straight and your core engaged.
Lower the dumbbell back to the starting position, keeping control of the movement, and repeat for the desired number of repetitions before switching to the other arm.