Now I need to go check out my avatar.
Perhaps it's time to google a judo skeleton. Haven't actively practiced much striking lately. Nobody has ever commented on the actual stance. Good eyes you have tyciol.
That skeleton is an interesting representation of the concept stance. It's kind of unsettling because without the flesh in the way, the joint angle in the hips is more apparent and it looks like his knees/shins are even further apart than they would look if he were fleshed.