Development of a finite element model of female foot for high-heeled shoe design
Development of a finite element model of female foot for high-heeled shoe design
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DOI：
10.1016/j.clinbiomech.2007.09.005
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发表时间：
2008-01-01
影响因子：
1.8
通讯作者：
Zhang, Ming
中科院分区：
文献类型：
--
作者：
Yu, Jia;Cheung, Jason Tak-Man;Zhang, Ming
背景。穿高跟鞋可能会对肌肉骨骼系统产生有害的影响，而增高鞋跟和拱形鞋垫是治疗足底筋膜炎的一种策略。由于实验方法的局限性，直接测量足部内部应力/应变是不可能的或侵入性的。本研究旨在建立一个有限元模型来评估高跟鞋支撑对踝关节-足部复合物的生物力学影响。在模拟平衡站立时，建立了女性足部和踝关节的三维解剖细节有限元模型，并使用该模型来研究不同鞋跟高度下足部骨和软组织结构的足底接触压力和内部负载响应。在高跟鞋支撑的平衡站立姿势下，预测第一跖趾关节处von Mises应力明显增加。足底筋膜劳损较平水平支撑减轻，拇外翻畸形无显著性差异。在长时间的高跟鞋站立期间，前足尤其是第一NITP节段的应力增加可能导致进行性拇外翻（HV）畸形。然而，足跟抬高可以减少足底筋膜的拉伸应力，有助于缓解足底筋膜炎相关的疼痛和炎症。(C) 2007 Elsevier Ltd.版权所有。
Background. Wearing high-heeled shoes may produce deleterious effects on the musculoskeletal system while elevation of the shoe heel with arch insole insert is used as a treatment strategy for plantar fasciitis. Due to limitations of the experimental approaches, direct measurements of internal stress/strain of the foot are impossible or invasive. This study aims at developing a finite element model for evaluating the biomechanical effects of high-heeled support on the ankle-foot complex.Methods. A 3D anatomically detailed FE model of the female foot and ankle together with a high-heeled support was developed and used to investigate the plantar contact pressure and internal loading responses of the bony and soft tissue structures of the foot with varying heel heights during simulated balanced standing.Findings. In the balanced standing position with high-heeled support, a pronounced increase in von Mises stress at the first metatarsophalangeal (MTP) joint was predicted. The strain on plantar fascia decreased compared to the flat horizontal support and valgus deformity of the hallux was not significant.Interpretation. The increased stress in forefoot especially at the first NITP segment during prolonged high-heeled standing may contribute to progressive hallux valgus (HV) deformity. However, the reduced tensile strain in the plantar fascia with heel elevation may help relieve plantar fasciitis related pain and inflammation. (C) 2007 Elsevier Ltd. All rights reserved.