A simple method measuring the pressure on the footsole was described using “Prescale”, pressure sensitive films. Prescale consists of two films, one coated with microcapsules which contain a color-producing agent and rupture when a pressure is applied, and the other coated with a color-developing agent. Then, when a pressure is applied on the former film, the latter one display a color of various density corresponding to the pressure applied. Distribution of the pressure on the footsole was studied in normal subjects by this method. Pressure distribution in each subject was compared with his foot structure examined radiologically. And the clinical implications and indication of this method were discussed.
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