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Are arch‐conforming insoles a good fit for diabetic foot? Insole customized design by using finite element analysis
Human Factors and Ergonomics in Manufacturing ( IF 2.4 ) Pub Date : 2020-03-17 , DOI: 10.1002/hfm.20841
Jianwei Niu 1 , Jing Liu 1 , Yanling Zheng 1 , Linghua Ran 2 , Zhigang Chang 3
Affiliation  

Plantar ulceration is one of the leading complications for diabetic patients. To reduce the risk of plantar ulceration, people with diabetic neuropathy often used custom insoles to offload high pressures from the metatarsal. However, the current custom arch‐conforming insoles, totally contact with the foot, could affect the flow of blood and produce adverse effects on foot ulcers. This study is aimed to propose novel custom insoles for diabetic foot and to make a comparison between the traditional insoles and the proposed one. The novel pressure‐relieving insole is a layered modular insole that includes eight layers of small cushions. The results showed that the current custom insoles would increase the insole volume and squeeze the space available for the foot, and then the constrictive box of the footwear could deteriorate the blood flow of the foot and produce adverse effects on foot ulcers. The novel insoles were found to reduce the peak pressure from 208.86 to 160.02 kPa. High pressure was not observed in the sensitive locations of diabetic foot in this study, and the novel insoles fit diabetic foot better.

中文翻译:

足弓贴合鞋垫是否适合糖尿病足?使用有限元分析的鞋垫定制设计

足底溃疡是糖尿病患者的主要并发症之一。为了降低足底溃疡的风险,患有糖尿病神经病变的人经常使用定制的鞋垫来减轻high骨的高压。但是,当前定制的足弓顺应性鞋垫完全与脚接触,可能会影响血液流动并对脚溃疡产生不利影响。这项研究旨在为糖尿病足提出一种新颖的定制鞋垫,并与传统的鞋垫进行比较。新颖的泄压鞋垫是一种分层的模块化鞋垫,其中包括八层小垫子。结果表明,当前的定制鞋垫会增加鞋垫的体积并挤压脚的可用空间,鞋类的收缩盒可能会使脚的血液流动恶化,并对脚溃疡产生不利影响。发现新型鞋垫将峰值压力从208.86降低到160.02 kPa。在这项研究中未在糖尿病足的敏感部位观察到高压,并且新型鞋垫更适合糖尿病足。
更新日期:2020-03-17
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