Exercise Ball Isometric Single Leg Squat

Instructions

1. Stand next to a wall with a stability ball placed between your lower back and the wall.
2. Lift one foot off the ground, shifting your weight onto the standing leg.
3. Lower into a squat position on the standing leg until your thigh approaches parallel, letting the ball roll up your back.
4. Hold the bottom isometric position for the prescribed time, maintaining an upright torso.
5. Drive through your heel to stand and switch legs.