If anyone is interested in reading about self-defense and/or martial arts for people with SCI/D they can download the free eBook NOT-ME! Self-Defense and the Martial Arts for and by People with SCI/D from this link http://www.not-me.org/selfdefenseforsci.pdf
Ohh.. I haven't any first hand experience with that but there was this one kid at my old dojang with some kind of muscle disorder. The way he trained and strived despite his limitations is really inspiring stuff.