6—7岁儿童扁平足的生物力学特点  

Biomechanical behavior of 6-7 years children flatfoot

作　　者：郭俊超 王亚伟[2] 樊瑜波[2] 蒲景玉 GUO Junchao;WANG Yawei;FAN Yubo(Key Laboratory of Human Motion Analysis and Rehabilitation Technology of the Ministry of Civil Affairs,National Research Center for Rehabilitation Technical Aids,Beijing,100176)

机构地区：[1]国家康复辅具研究中心,北京市老年功能障碍康复辅助技术重点实验室和民政部人体运动分析与康复技术重点实验室,北京市100176 [2]北京航空航天大学生物与医学工程学院,生物力学与力生物学教育部重点实验室,北京市生物医学工程先进创新中心 [3]北京市大兴区瀛海镇第二中心幼儿园

出　　处：《中国康复医学杂志》2023年第4期495-499,共5页Chinese Journal of Rehabilitation Medicine

基　　金：国家科技部项目(2016YFB1101101);国家自然科学基金项目(11702068,U20A20390,11827803,11421202);国家重点研发计划项目(2020YFC0862700);国家康复辅具研究中心基本科研业务费项目(118009001000160001)。

摘　　要：目的:探讨6—7岁儿童扁平足的发生概率,并进一步调查扁平足的生物力学特征。方法:利用MIMICS软件测量210足在负重位时足弓高度和足跟外翻度数,并通过Footscan数据测量比较正常足和扁平足的足底压力区域和接触面积的不同,进行统计学分析。结果:此年龄段内扁平足的生物力学特征即为足弓高度低于22.93mm,足弓塌陷发生率为31.43%;足跟外翻角度大于7.66°,发生概率为87.62%。两者同时发生的概率约为27.61%。与正常足足底压力和接触面积相比,扁平足足底压力主要集中在前足的第二跖区、第三跖区和足跟内侧区域,中足接触面积增加41.9%。结论:6—7岁儿童中扁平足约占三分之一,本研究为儿童足部健康调查及鞋类设计提供了一些参数。Objective:Exploring the occurrence and biomechanical behavior of 6—7 years children flatfoot.Method:The arch height and heel valgus degree of 210 feet during weight bearing were taken with SHANGHE and MIMICS.And then,the plantar pressure and contact area were measured with Footscan.Result:The biomechanical characters of flatfoot in this age group was that the incidence of arch collapse lower than 22.93mm is 31.43%;Probability of heel valgus angle greater than 7.66°is 87.62%.The incidence of both was about 27.61%.Compared with the normal foot,the plantar pressure of flatfoot mainly concentrated on regions of the second metatarsal,the third metatarsal and the medial heel;the contact area of the midfoot increased by 41.9%.Conclusion:About a third of 6—7y children is flatfoot.This will provide the refference data for the children's foot health and shoe design.

关 键 词：扁平足 足弓高度 足跟外翻 足底压力 接触面积 

分 类 号：R493[医药卫生—康复医学]