
Stand up straight with your shoulders and back against a wall. Spread your feet shoulder-width apart. Move your feet forward enough from the wall such that when you slide down, your knees do not get ahead of your ankles.
Position a small, 9-inch stability ball between your knees. Next, slowly slide down the wall into a mid-squat so that your thighs are parallel to the floor.
Squeeze the ball between your knees to activate your inner thigh muscles. Hold the squeeze for a count of 10-20 seconds, then slide up back.
Relax for 5 to 10 seconds.
Do at least 8 to 10 reps.