Instructions:

1. Stand with your back against a wall and place an exercise ball between your lower back and the wall.
2. Position your feet shoulder-width apart, with your toes pointing forward.
3. Hold a dumbbell in each hand, with your arms extended by your sides.
4. Raise your heels off the ground, lifting your body weight onto the balls of your feet.
5. Pause for a moment at the top, then slowly lower your heels back down to the starting position.
6. Repeat for the desired number of repetitions.