I have flat arches. I have been doing various exercises to help strengthen them, but I wondered when I would be able to tell when they're strong enough. I wonder specifically if my arches should stay up no matter what, or if they should still be able to collapse on command. Basically, do those of you with strong healthy arches just keep your arches have the ability to collapse them without too much effort? Like if you relax your muscles much, so the arches collapse? That's what happens to me, I'm not forcing my arches up, but they don't just stay up automatically.