I work in carbon fiber. It's light, strong, and maintains a stiffness based on thickness that if tweaked juuuust right, provides a spring of energy return at the moment the proximal tibia advances over the toes. It's not toe-off i'm concerned with, it's the assistance of the body's COG to get forward. By the time the heel is off the gound is too late. But if I can help the heel to rise from the return of energy stored by pronation in the mid-foot, my mission has been accomplished.
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These orthotics are all you need. I mean really, in 10 years i've made thousands of orthotics and 80% had these attributes: 4 degrees of intrinsic hindfoot post, a neutral arch, and 2 degrees of forefoot post. What changed? top cover materials, amounts, and shapes. |
Chris Gracey MPT, Cped
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