I get pain on the inside of my wrists, which I'm sure is associated to nudging. Sounds bad, I'm not rough, but I find for subtle nudging, it's more wrists than anything, and when actually moving or sliding a machine even a foot for whatever reason, it's more shoulders.
I'm made of glass though in every sport I've ever played, and I’ll be damned if I ever admit this to any of my friends, I would never hear the end of it...