This video of Doctor in the House shows two people with serious medical problems. One being a Paraolympic athlete with severe shoulder problems who had a series of Alexander Technique lessons which were very beneficial and meant that he would not end up in a wheelchair and could continue with his training and being mobile.

http://www.bbc.co.uk/iplayer/episode/b08rblpk/doctor-in-the-house-series-2-episode-1