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   Even a blind squirrel finds a nut now and then ;D
 Obviously, if you have had injuries too your ankles that required surgery or suffered damage that can't be repaired, your weakness might be permanent. However, like any muscle group, you feet/ankles respond to exercise and that balance trainer is one of the best ways to get at all those small supportive muscles. IF your feeling adventurous, try it out the next time your at your friends house, I can tell you that it will surprise you how hard it is to stay balanced, and how fast you'll feel any inherent weakness you have! Anything you can do to strengthen your ankles, regardless of shoe choice is well worth doing if your a outdoor enthusiast.