As I've previously stated, I'm 40 and after laying off traditional karate for a year I'm starting bjj. I've never been accused of being flexible, being 6'8" 285, but I'm not a robot either. What type of activities besides general stretching would you recommend for someone like me? Middle age, a little stiff in the knees and joints and did I mention I have a badly supinated right ankle? I wore a shock doctor ankle brace for the 1.5 yrs I took CKD and now have a custom built orthotic to put in my shoe so I can walk far distances. I'm not crippled up, I can walk without it and even run, it just got to the point too much twisting wasn't doing it much good. Would yoga be good for bjj or just light stretching or maybe some nautilus machines at my local gym (good time to use that membership I bought for my new year resolution lol) thanks for any advice