Rhythmic stabilization is a technique used to improve the dynamic stability of a joint (in this case, the shoulder). The cue to my client is to try to keep her shoulder as still as possible while I provide perturbations at different positions along her arm. This forces her to contract different muscle groups within the shoulder. I can progress this activity by changing the position of her arm based on my desired result, changing the amount of force I use, or the speed in which I do it. This is a powerful drill used in the rehabilitation of many shoulder conditions! Questions? Call me! 480 371 1555