exercise ball on the wall calf raise (tennis ball between knees)

How to do it

1. 1Stand with your back against a wall and place an exercise ball between your lower back and the wall.
2. 2Position your feet shoulder-width apart and slightly in front of you.
3. 3Hold a dumbbell in each hand, with your arms extended by your sides.
4. 4Place a tennis ball between your knees.
5. 5Raise your heels off the ground, lifting your body up onto your toes.
6. 6Pause for a moment at the top, then slowly lower your heels back down to the starting position.
7. 7Repeat for the desired number of repetitions.