Scientists and Doctors have the research to prove the many health and performance benefits that come with the use of upgrading your shoe insole!
Many studies claim that 50–90% of patients who were treated with orthotics reported complete relief or great improvement of their condition!
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(See; GROSS, M. L., L. B. DAVLIN, and P. M. EVANSKI. Effectiveness of orthotic shoe inserts in the long-distance runner. Am. J. Sports Med. 19:409–412, 1991., and JACOBS, S. J., and B. L. BERSON. Injuries to runners: a study of entrants to a 10,000-meter race. Am. J. Sports Med. 14:151–155, 1986.)