Measurement of Dynamic Pressures at the Shoe-Foot Interface During Normal Walking with Various Foot Orthoses Using the FSCAN System
- 1 March 1996
- journal article
- research article
- Published by SAGE Publications in Foot & Ankle International
- Vol. 17 (3), 152-156
- https://doi.org/10.1177/107110079601700306
Abstract
Foot orthoses are routinely used in clinical practice to redistribute pressure at the shoe-foot interface, although there is very little scientific evidence to support the efficacy of their use. In this study, the FSCAN sensor (an ultrathin in-shoe transducer) was used to determine the efficacy of pressure redistribution with a Plastizote, Spenco, cork, and a plastic foot orthosis as compared with control (no orthosis). Measurement variations of up to 18% occurred between sensors, and changes in stance time of up to 5% occurred between the orthoses and the control conditions. In spite of these potentially confounding variables, statistically significant differences in peak pressure between the orthotic types and the control condition (range, 9-146%) were noted. We conclude that Plastizote, cork, and plastic foot orthoses can be beneficial in relieving pressure in certain regions of the shoe-foot interface, but that they may do so at the cost of increasing pressure in other areas of the plantar surface.Keywords
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