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Foot Ankle Int. 1996 Mar;17(3):152-6.

Measurement of dynamic pressures at the shoe-foot interface during normal walking with various foot orthoses using the FSCAN system.

Author information

1
National Institutes of Arthritis, Musculoskeletal, and Skin Diseases/NIH, Bethesda, Maryland 20892, USA.

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.

PMID:
8919619
DOI:
10.1177/107110079601700306
[Indexed for MEDLINE]

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