Uploaded August 2014 | Updated September 2026, 3 hours ago

---

Preparation: Stand with the knees slightly bent, out in front of the body with the stability ball in the small of the back.
Movement: You may start by holding this position and progress to a 90 degree squat (bend at the knees).
Tip: Keep the feet far enough from the wall to ensure the knees do not go beyond the toes.
cooperinstitute.org