Hmm. I wonder what the risk-minimizing way of opening a door is. The conventional palm-forward way might give you a broken wrist if slammed open.

Hand at chest level, palm down in a loose fist, like a karate block, then open the door by hinging from your elbow? As long as you have a foot out in front of you as well, so it impacts your toe rather than your face, that would result only in bruises to arm, elbow, toe and possibly backside rather than delicate bits of hand and wrist.