An In Vivo Experimental Validation of a Computational Model of Human Foot
An In Vivo Experimental Validation of a Computational Model of Human Foot
复制标题
人足计算模型的体内实验验证
DOI：
10.1016/s1672-6529(08)60138-9
复制
发表时间：
2009-12-01
影响因子：
4
通讯作者：
Howard, David
中科院分区：
文献类型：
--
作者：
Tao, Kai;Wang, Dongmei;Howard, David
可靠的计算足部模型提供了一种增强人类足部生物力学知识的替代方法。模型验证是整个足部建模和分析过程中最关键的方面之一。本文提出了结合运动捕捉系统和足底压力测量平台的体内实验，以验证人足的三维有限元模型。用于足部建模的磁共振成像 (MRI) 切片和用于验证的实验数据均来自同一志愿者受试者。验证的组件包括将六种负载条件下的足底力、足底压力和足部表面变形的静态模型预测与等效测量数据进行比较。在整个实验过程中，在六种不同的负载站立条件下同时记录足部表面变形、足底力和足底压力。当前有限元模型的预测与这些实验结果非常吻合。
Reliable computational foot models offer an alternative means to enhance knowledge on the biomechanics of human foot. Model validation is one of the most critical aspects of the entire foot modeling and analysis process. This paper presents an in vivo experiment combining motion capture system and plantar pressure measure platform to validate a three-dimensional finite element model of human foot. The Magnetic Resonance Imaging (MRI) slices for the foot modeling and the experimental data for validation were both collected from the same volunteer subject. The validated components included the comparison of static model predictions of plantar force, plantar pressure and foot surface deformation during six loading conditions, to equivalent measured data. During the whole experiment, foot surface deformation, plantar force and plantar pressure were recorded simultaneously during six different loaded standing conditions. The predictions of the current FE model were in good agreement with these experimental results.