60～69岁妇女自然行走时的足底压力特征  

Plantar pressure features of 60-69 years old women in natural walking

作　　者：李永强[1] 

机构地区：[1]徐州师范大学体育学院,江苏省徐州市221011

出　　处：《中国组织工程研究与临床康复》2009年第41期8044-8047,共4页Journal of Clinical Rehabilitative Tissue Engineering Research

摘　　要：背景:足底压力分布特征对足履行各生理功能具有重要作用。目的:观察60～69岁妇女自然行走过程中左右双足平均峰力值、冲量、时相等参数特征,探索足底压力参数的分布规律。设计、时间及地点:单一样本设计,观察实验,于2009-01在徐州师范大学体育学院完成。对象:60～69岁的普通健康妇女。方法:采用比利时FootscanUSB2平板式足底压测试系统对53名60～69岁妇女进行动态足底压力测试。所有受试者测试期间足踝关节活动正常,测试时均脱鞋袜,以个人平常步态自然行走,每人行走3次,记录动态足底压力,计算足底各个区域的平均峰力值、冲量、时相等参数特征。主要观察指标:足底各个区域的平均峰力值、冲量、时相等参数特征。结果:受试者平地自然行走时,足部最大受力部位在足跟,各部位最大压力由大到小依次为第2跖骨、第3跖骨、第1跖骨、第1趾骨、第4跖骨、足弓、第5跖骨、第2～5趾骨;足部最大冲量部位在足跟,各部位冲量由大到小依次为第2跖骨、第3跖骨、第1跖骨、第4跖骨、第1趾骨、第5跖骨、足弓、第2～5趾骨;支撑时期时间所占比例最大的是整足接触阶段,依次是离地阶段、前掌接触阶段、着地阶段。结论:60～69岁妇女自然行走过程中足底承受压力及冲量最大部位为足跟和足前掌中部第2、3跖骨处;行走时整足接触阶段、离地阶段过长,前脚掌处压力中心密集,长时间大负荷刺激,易疲劳积累致损伤,老年人在行走时应该选择合适的鞋子,加强注意对足的保护。BACKGROUND： Plantar pressure distribution characteristics play an important role in the various physiological functions of the foot. OBJECTIVE： To investigate the mean peak value of plantar pressure, impulse and time interval in double feet of 60-69 years old women during the natural walking, and to explore the distribution rule of plantar pressure parameters. DESIGN, TIME AND SETTING： The experiment, single-sample design, was carried out in the Institute of Physical Education of Xuzhou Normal University in January 2009. PARTICIPANTS： Health women of 60 69 years old. METHODS： A total of 53 women aged 60 69 years were analyzed by the Footscan USB2 system （RSscan, Belgium）. All subjects had normal ankle joint during activities, with barefoot and normal gait. Dynamic plantar pressure was determined three times per person, and the mean peak value of force, impulse and time interval were calculated. MAIN OUTCOME MEASURES： The mean peak force, impulse, and time interval of plantar regions. RESULTS： When the subjects walked naturally on the flat, the maximal force part of the foot was the heel, and others sequentially were the second metatarsal, the third metatarsal, the first metatarsal, the first phalange, the fourth metatarsal, arch, the fifth metatarsal, and the second to fifth phalanges. The maximal impulse was in the heel, and the sites suffering impulse were in sequence of the second metatarsal, the third metatarsal, the first metatarsal, the fourth metatarsal, the first phalange, the fifth metatarsal, arch, and the second to the firth phalanges. The largest proportion of the support interval was foot fiat phase, and secondly, the sequence for the support interval was forefoot push off phase, forefoot contact phase and initial contact phase. CONCLUSION： The maximal plantar pressure and impulse for 60-69 years old women during the natural walking are in the heel and the second and third metatarsals in the middle part of the forefoot. During the walking, the contact phase of the fu

关 键 词：足底压力 自然行走 妇女 

分 类 号：R87[医药卫生—运动医学]