Modified exercise and sport for above knee amputees

I'm trying my best to gather information, mostly from the net, about normal sports or exercises that have been modified to suit amputees. Probably mainly above knee amputees just because it's what I know.

I want to teach myself - and then record my results - for yoga, tai chi, martial arts, swimming styles (this at least I already have experience with), gym techniques, cycling etc, but all without my prosthesis if possible, because of the pain in my lower back resulting from using the prosthesis so much. Maybe when I can afford to buy a better prosthesis that isn't so heavy and awkward, I can start to incorporate exercise with a prosthesis.

However, as far as I'm concerned, my real body is legless on one side, and the prosthesis is just a tool - like crutches or a walking stick - that helps me get around in a world made for people with two legs. However, my most natural and comfortable state is without a heavy weight hanging off of my shorter left leg. That's what it feels like - a dead weight. It is not part of my body, so I will never be able to move it gracefully or naturally.

I've found a few sites that mention different modified poses for amputee yoga, so I'll incorporate those and credit the sites I got them from when I mention each pose. I've now found Gisoku Bodu's site so I'll try some of the moves he mentions and credit them to him when I mention them on the site. Obviously I'll have to modify some of them as he seems to use his prosthesis. Who knows, maybe once I get started I'll prefer using the prosthesis anyway.

I'm going to try not only posting about my adaptations of different activities, but also putting up photos... we'll see if that ends up happening or if I'm too shy ;)