Graduate Institute of Biomedical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan.
Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei City 10607, Taiwan.
Sensors (Basel). 2018 Oct 25;18(11):3617. doi: 10.3390/s18113617.
This study aimed to find the correlation between conventional Arch Index (AI) measurements and our prototype of a simplified insole-based plantar pressure measurement system and to find out the effective plantar pressure sensor position. Twenty-one subjects participated in this study, which was divided into two groups: 10 subjects with flatfoot and 11 subjects with normal foot. Five force sensitive resistance sensors were used on this prototype using Arduino as the data acquisition device. Two types of trials, namely static and dynamic, were conducted to validate our system against the ink-type AI measurement as a golden standard. The results showed that in the static trial, there was a high linear correlation with the medial arch sensor configuration, while in the dynamic trial, there was a high linear correlation in the medial arch sensor configuration and sensor 5 configuration. This study showed that both static and dynamic tests using the self-developed device could effectively determine most of the flatfoot subjects and suggests that in the future, it can be applied in clinical applications because of its advantages when compared to the expensive-high tech graphic input board and conventional tools, like ink-type based measurements.
本研究旨在探讨传统足弓指数（AI）测量值与我们自行研发的简易足垫式足底压力量测系统之间的相关性，并找出有效之足底压力感测器位置。二十一位受测者参与本研究，受测者分为扁平足组与正常足组，各十一位。本原型系统使用五个压敏电阻感测器，并以 Arduino 作为资料撷取装置。本研究进行了两种类型的测试，分别为静态和动态，以 ink-type AI 测量值作为黄金标准来验证我们的系统。结果显示，在静态测试中，内侧足弓感测器的配置具有高度线性相关性，而在动态测试中，内侧足弓感测器和感测器 5 的配置也具有高度线性相关性。本研究显示，使用自行研发之装置进行静态和动态测试，可有效判断大部分扁平足受测者，并建议未来可将其应用于临床，因为与昂贵的高科技绘图输入板和传统工具（如基于墨水的测量）相比，具有优势。
