My app gelding does this. Instead of moving forward, he would go backwards. He doesn't put weight into his leg that's up or trys to lay down, but he does his best to jerk it away.
It took a while for us to be able to pick it up no problem. But I'll tell you what I did.
First, I did his rears because he had no problem with that. Then when I was going to do his front feet, I changed it up. Sometimes I would take a brush and just brush his leg, other times I would massage it. When I did finally ask him to pick it up, it would only be for a little bit. If he fought me, I held on and moved with him (if he tried taking a step) He then realized that I wasn't going anywhere, and would stand, and as soon as he would do that, I'd rub his belly, while still holding his hoof and then place it down. And then I would rub him and do it again.
He is great on his left front, but his right front still can be a problem, but we're getting there.
Also, giving him a treat when we were done with each hoof helped out too.
If you have someone that can hold her and maybe occupy her (either with a treat or some hay) she might be better (She'd be thinking about the food and not the hoof)