Powell Douglas W, Long Benjamin, Milner Clare E, Zhang Songning
Department of Health and Human Performance, Fairmont State University, Fairmont, WV, USA.
J Appl Biomech. 2012 May;28(2):165-73. doi: 10.1123/jab.28.2.165. Epub 2011 Oct 4.
The medial longitudinal arch plays a major role in determining lower extremity kinematics. Thus, it is necessary to understand the dynamics of the arch structure in response to load. The purpose of this study was to examine arch function in high- and low-arched feet during a vertical loading condition. Ten high- and ten low-arched females performed five trials in a sit-to-stand exercise. Ground reaction force (1200 Hz) and three-dimensional kinematics (240 Hz) were collected simultaneously. The high-and low-arched athletes had no differences in vertical deformation of the arch. High-arched participants were less everted than the low-arched athletes; furthermore, the high-arched athletes had smaller mid-forefoot eversion excursions. Differences between the high-arched and low-arched athletes occur through and motion at the mid-forefoot joint.
内侧纵弓在决定下肢运动学方面起着主要作用。因此，有必要了解足弓结构在负荷作用下的动力学。本研究的目的是在垂直负荷条件下检查高弓足和低弓足的足弓功能。10名高弓足女性和10名低弓足女性进行了5次从坐姿到站姿的运动试验。同时收集地面反作用力（1200赫兹）和三维运动学数据（240赫兹）。高弓足和低弓足运动员在足弓垂直变形方面没有差异。高弓足参与者比低弓足运动员的外翻程度小；此外，高弓足运动员前足中部的外翻幅度较小。高弓足和低弓足运动员之间的差异发生在前足中部关节的整个运动过程中。
