After wearing my orthotics, my legs and back were sore.
Podiatrists prescribe and construct foot orthotics.
Properly designed foot orthotics may compensate for impaired foot function, by controlling abnormal motion across the joints of the foot. This may result in result in dramatic improvement in foot symptoms. Functional foot orthotics are usually made from rigid materials, especially plastics and carbon-fiber composites. They are constructed upon a plaster impression of the feet, and modified based on the podiatrist's evaluation of your problem. They are normally quite comfortable, and do not feel hard or uncomfortable in the shoe.