I have a friend whose foot was mangled by a land mine and then reconstructed over several surgeries. His doctor told him he basically rebuilt the entire foot, and that it would have been a lot easier just to have amputated it. (That's a doctor joke: of course he liked having the more difficult job.) As you can imagine, there is some diminished function--numbness, fatigue, etc., but the foot flexes fore-aft and side to side. Not what most would consider "normal" but it works.
He's a great dancer, and with enough BAC can dance the night away. He took up skiing last year and it looks like he'll master it in a couple of years. He took up golf this spring and now breaks 100 regularly. His only concession is to use a cart because of all activities he finds walking the most difficult.
What's his secret? Well, besides a gargantuan appetite for learning new things, my friend is very picky about what he puts on his feet. You don't want to know what he pays for walking shoes.
Moral of the story: Care in the selection and customization of BOOTS is critical to the actions of the feet, in whatever shape they may be.