Jackie Wolfe
What a wonderful and well-thought-out site!
I am working primarily with an older population, many of whom have joint replacements without the expected benefits. Many of these folks are functioning below what is often accepted as baseline. My first two ball "exercises" for them are
1: Learn to sit on the ball and feel what balance is and where your base is; and
2: Stand from the ball without using hands - also noticing which foot placement is most comfortable and what faulty habits one falls back on.
This leads to standing from a chair from one's core (without hands).
Thanks for your work.
Jackie