Dynamic Measurement of Deformation of Foot Structure Using Flexible Polymer Curvature Sensors
Dynamic Measurement of Deformation of Foot Structure Using Flexible Polymer Curvature Sensors
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利用柔性聚合物曲率传感器动态测量足部结构变形
DOI：
10.11239/jsmbe.53.63
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发表时间：
2015
影响因子：
--
通讯作者：
松原忠志，坂上友介，牧川方昭
中科院分区：
文献类型：
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作者：
松原忠志，坂上友介，牧川方昭
人类的脚包含大量的骨骼，这些骨骼形成了可以有意识地移动的关节，以及只在无意识状态下轻微移动的关节。虽然许多研究通过检查内侧纵弓的宽广区域来研究无意识运动关节的变化，但很少有研究对构成部分的变化进行研究，例如第一踝跖骨关节(无意识运动关节)。此外，基于运动捕捉或透视的常用测量方法存在与准备测量环境的困难相关的问题。为了测量作为内侧纵弓的一部分的第一踝跖骨关节的动态变形，我们使用了柔性聚合物曲率传感器，将弯曲曲率转换为电压。我们安装了三个曲率传感器来测量关节在多个平面上的变形。12名健康成年男性(年龄22.6±1.2岁)被要求在跑步机上赤脚行走。测量结果显示，在第一跟跟关节处有动态和多平面的变形。我们证实，足部结构的变形趋势随着脚部状态的不同而敏感地变化。
The human foot contains a large number of bones, which form joints that can be moved consciously, as well as joints that move only slightly in an unconscious manner. While many studies have investigated the changes in unconsciously moved joints collectively by examining the wide region of the medial longitudinal arch, very few studies have investigated the constituent parts such as the first tarsometatarsal joint (an unconsciously moved joint). Furthermore, the commonly used methods of measurement based on motion capture or fluoroscopy have a problem associated with difficulties in preparing the measuring environment. To measure the dynamic deformation of the first tarsometatarsal joint, which is a part of the medial longitudinal arch, we used flexible polymer curvature sensors that convert the bending curvature to voltage. We attached three of these curvature sensors to measure the deformation of the joint in multiple planes. Twelve healthy adult males (aged 22.6±1.2 years) participated in the experiment, in which they were asked to walk barefoot on a treadmill. The measurements obtained showed dynamic and multi-planar deformation at the first tarsometatarsal joint. We confirmed that the tendency of deformation of the foot structure changes sensitively depending on the state of the foot.