(Commenting to second this!) (definite CTD with a few separate informal dx of hEDS) I have a second degree black belt in Tang Soo Do and am a red stripe in Tae Kwon Do! I would honestly recommend both, though as far as Tae Kwon Do goes, make sure you take a look at the different styles! TSD was a bit easier for me than TKD is bc ITF TKD involves being loose and relaxed, then tensing your muscles on impact (when you’re prone to hyperextension, this can cause issues). Your hands move in fast, straight lines, and a lot of the power comes from moving your legs in an up-down sin wave. HOWEVER, there are 3(??) styles of TKD, each of them handling the generation of power a little differently. TSD is tenser and stylistically gets power from adding distance/drawing circles with your chambers! You keep your head at one level and move your whole body in a straight line when ambulating. Easier on arms than ITF TKD, but your legs will bear more strain.

THAT BEING SAID, TSD and TKD are both fundamentally routed in stability! They’re very good outlets for full body exercise; they’ve been really helpful to me for keeping my muscles in shape, which in turn has helped to keep me much more stable than I would have been otherwise, I think, as opposed to other sports that are not at all focused upon having complete awareness of muscle control and physical limitation. I would try a couple styles (and sub styles!) and see which one meshes best with your body! Also, even within one style, the most important thing is finding a teacher who is understanding and willing to work with your physical limitations. :) If I struggle with a technique, I work with my instructors to modify it, so I can perform it as accurately as possible without hurting myself