Seo KyoChul, Park SeungHwan, Park KwangYong
Department of Physical Therapy, Korea Nazarene University, Republic of Korea.
Department of Medical Engineering, Eulji University, Republic of Korea.
J Phys Ther Sci. 2017 May;29(5):819-821. doi: 10.1589/jpts.29.819. Epub 2017 May 16.
[Purpose] This study investigated the effects of proprietary foot orthotics in young adults with flatfoot to determine changes in the ankle joint angle in the coronal plane during the midstance phase. [Subjects and Methods] The subjects were 15 college students diagnosed with flatfoot. Changes in the ankle joint angle in the coronal plane in the midstance phase were measured using the Vicon Motion System before and after use of the orthotic. The data were analyzed using Statistical Package for the Social Sciences Win 16.0. [Results] The subjects showed significant increases in left and right ankle joint angles in the coronal plane during the midstance phase of the gait cycle after use of the orthotics. However, the difference between the left and right ankle joint angles showed no significant change, even though the difference increased after use of the orthotics. [Conclusion] Young adults with flatfoot showed increased ankle joint angles after use of the orthotics. This suggests that orthotic footwear can shape the plantar arch and affect the ankle joint, and that constant use of orthotics would cause a dynamic change in normal walking.
[目的] 本研究调查了定制足部矫形器对扁平足年轻成年人的影响，以确定在步态中期支撑相时冠状面内踝关节角度的变化。[对象与方法] 研究对象为15名被诊断为扁平足的大学生。在使用矫形器前后，使用Vicon运动系统测量步态中期支撑相时冠状面内踝关节角度的变化。数据采用社会科学统计软件包Win 16.0进行分析。[结果] 使用矫形器后，研究对象在步态周期的中期支撑相时，左右踝关节在冠状面的角度均显著增加。然而，尽管使用矫形器后左右踝关节角度的差异有所增加，但差异无显著变化。[结论] 扁平足年轻成年人使用矫形器后踝关节角度增加。这表明矫形鞋可以塑造足弓并影响踝关节，持续使用矫形器会导致正常行走的动态变化。
