Bonnie, I don't know about the foot freezing up, but I do know about the backing up problem! She should get to a physical therapist who can teach her how to pivot around forward, rather than back up. Dad has had this problem for quite some time now. He backs up and eventually he gets going so fast that his heels literally go out from under him. However, if he runs into something, or if someone puts a hand on his back, he stops. He generally remembers to pivot forward, but he still has problems when it comes to doors that open toward him. I think it might help a little if your friend can hold onto the door while it's coming toward her. Also, if there's something she can lean on (a wall next to the door) while she's opening the door, that might help. Good luck! Trish