Development of foot arch evaluation system by foot pressure distribution data

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To develop an evaluation system for foot arch types using foot pressure distribution data, field test for the elderly was conducted and basic data was obtained. Evaluation parameter set was discussed in terms of both biomechanics and statics. As the result, the mid foot pressure ratio was selected as an optimal parameter set. Discriminant analyses were conducted and discriminants were derived using the parameter set. Results of the classification indicate that both sensitivity and specificity of the classified foot arch types were sufficiently high. Therefore, the method developed in this study was thought to be highly reliable.