Development of foot arch evaluation system by foot pressure distribution data

为利用足底压力分布数据建立足弓类型评价系统，对老年人足弓类型进行了现场测试，获得了基本数据。从生物力学和静力学两方面对评价参数集进行了讨论。因此，选择足中压比作为最优参数集。进行判别分析，并利用参数集得出判别式。分类结果表明，足弓类型分类的敏感性和特异性均较高。因此，这项研究中开发的方法被认为是高度可靠的。

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.