Single Leg Squat
with the Exercise Ball

Starting Position	Place the exercise ball against the wall at mid back height. Stabilize the ball between your back and the wall. Cross your arms over your chest. Take a step out from the wall. Place your feet hip width apart and maintain a neutral spine. Straighten one knee.
Action	While keeping your trunk stable and your chest up, slowly lower yourself down and back up. When moving back up don't allow your knees to fully straighten or hyperextend.
Prime Movers	Quadriceps, glutes, hips, and trunk.
Physio Tips	Don't allow your hips to sag or your back to arch To avoid knee injury be sure that your knees do not move beyond the tip of your toes.
Progression	Try moving further away from the wall. Hold a weight across your chest. Try Single Leg Side Squat. Try Squat Leg Raise.