Dynamic Function of Multi-Articular Joints in the Foot and Ankle

人类的脚是一个令人惊叹的复杂的多关节结构，可以承受巨大的重量，同时无缝地适应地形的变化。脚由二十六块骨头、三十三个关节、二十块肌肉和一百多条韧带组成，能够调整其僵硬程度，使其成为可移动的适配器、刚性杠杆或介于两者之间的东西。由于它的复杂性，人们并不完全了解脚在跑步、跳跃甚至步行等高要求的活动中是如何完成其许多功能的。我们建议利用一种独特的方法，结合高速骨骼成像，使我们能够在脚移动时观察它的内部。这项建议的目的是了解足弓是如何工作的，以及提高我们使用高速骨骼成像技术研究多关节关节的能力。

The human foot is an amazingly complicated multi-articular structure that can support tremendous weight, while at the same time seamlessly adapting to changes in terrain. Consisting of twenty-six bones, thirty-three joints, twenty muscles, and over one hundred ligaments, the foot is able to adjust its stiffness to become a mobile adapter, a rigid lever, or something in between. Because of its complexity, it is not fully understood exactly how the foot accomplishes its many functions during demanding activities like running, hopping, or even walking. We propose to utilize a unique approach coupled with High-Speed Skeletal Imaging to allow us to look inside the foot while it is moving. The purpose of this proposal is to understand how the arch of the foot works, as well as improve our ability to study multi-articular joints using High-Speed Skeletal Imaging technologies.