I gave up training today, apparently my ankles won't cope if I continue doing it. So I must stop before I wear them out. It's not been a bad run though, I was sparring into my 50s. I can still instruct and I will for a some time but at some point in the future I will stop, I won't feel comfortable training others when I haven't done it myself for a while. I now need a more sedate sport. Any suggestions?