lindy,
In physical therapies, my personal experience has been amazing with water aerobics: twice a week, aerobics; once a week, weights in the water. I think most anything that encourages you to use both sides of your body in the same way is important in reminding both sides of your brain to operate in similar ways. Before I started this, I couldn't move my left arm above my shoulder. Now I can. Just visualize the parallel movements of the breast stroke or backstroke-- it has been wonderful and for me, it's turned back the PD clockl