With the theme of rhythmic stabilization the past few weeks, this week's exercise focuses on the GH joint and scapula stabilizers of the shoulder. This exercise challenges the patient to recruit the scapula stabilizers which is important to keep normal kinematics. By instructing the patient to keep the palm open instead of tightly closed over the ball, more activation of the shoulder stabilizers must come into play.
Instruct the patient to be seated on a stability ball with their palm on the ball against the wall. Keeping their feet close together, begin applying rhythmic stabilization in all directions, increasing speed as needed. To progress this exercise, have the patient extend their opposite knee to create more imbalance to the exercise. A final progression would be to have the patient abduct their opposite shoulder with a light weight for a sustained hold.