I don't know if these are working as advertised, but I do know that I really like them as shoes. They are cute and very cushion-y. They have good support. My legs and feet feel less tired. The only negative is they do encourage (or at least not discourage) my feet to roll inward. So if that's an issue for you, you may not want them. I use them just to walk around in - not specifically for any type of exercise.