http://synapse.koreamed.org/Synapse/Data/PDFData/1041ARM/arm-38-369.pdf
I am so proud of this article published by researchers in Korea. It substantiates a claim that the Inverted Orthotic Technique, which I developed throughout the last 30 years, actually helps children with flatfeet improve (called pes planus). I have used the technique on 100s of children, including my own two children, starting at 3 for one, and 1 and a half for the other more pronated child. If your children have flatfeet, have a podiatrist evaluate if they should have orthotic devices and when. I have tended to never treat my family as a general principle, but in this case, I have felt the most qualified.