This is great intro correct arch and foot position. I had an ortho in Florida tell the same stuff in a more technical manner. This video is better than me trying to sound like I understand the mechanics!
With an accessory navicular, I find these positions give me aches and pains and cramps - reflecting the weakness of the foot I guess. But after a few days it feels a little more natural. There are more videos that I will link to when I remember.








