摘要
背景:舒适的鞋具有一定的吸收和降低地面冲击力的功能,如果鞋没有良好的减震系统来缓解这种冲击力,会使双脚感到疲惫不堪,还会对人膝关节、腰、背以及大脑造成冲击伤害。目的:通过足底压力测量系统测量不同硬度鞋底对人足底压力变化的影响。设计、时间及地点:观察实验,于2008-12/2009-02在上海体育学院完成。对象:穿着实验用鞋的测试对象共6人,均为南京体育学院志愿者。方法:采用邵氏A硬度计测量作者设计的3双实验用鞋,硬度值分别为51度,62度,69度,据此得出该3双鞋的软硬程度,分别命名为软底鞋、中等硬度鞋与硬底鞋,鞋的质量均为103g。采用德国Novel公司的Emed-pedar系列鞋垫式足底压力测量系统,对受试者在跑台上以2m/s的速度进行步行60min测试。主要观察指标:受试者足底分区压强、接触面积、冲量。结果:随着鞋底硬度的增加,足底压力中心从内侧的第一跖骨向外依次移动,与裸足行走时相比,穿中等硬底鞋和硬底鞋行走时的足底压力中心轨迹长度都变长,穿软底鞋行走时的足底压力中心轨迹长度缩短。穿软底鞋和中等硬底鞋行走时总的压强与裸足行走时相比均减小,且穿这两双鞋行走的每个行走时相压强都减小,而穿硬底鞋行走时总的压强与裸足行走时相比有明显的增加,每个行走时相的压强都增加。软底鞋和中等硬底鞋接触面积差不多大,硬底鞋因为鞋底最硬接触面积也最小,最软的鞋(软底鞋)在10min内有所升高之后和中等硬底鞋都基本没有变化,硬底鞋随时间增长呈现"升高-下降"的趋势。穿中等硬底鞋和裸足情况下的总冲量最接近,穿软底鞋和硬底鞋的总冲量相对于裸足情况下均有增加。结论:总体来看,足底压强:硬底鞋>中等硬底鞋>软底鞋;足底接触面积:软底鞋>中等硬底鞋>硬底鞋;冲量:硬底鞋>软底鞋>中等硬底鞋。
BACKGROUND： The comfortable shoes can absorb or reduce the impact force from the ground. Is the damped system is absent in shoes to relieve the impulse, the feet will be extremely tired, even damage the human knee joint, waist, back and brain. OBJECTIVE： To measure the changes of human plantar pressure by different sole hardness through the measurement system of plantar pressure. DESIGN, TIME AND SETTING： An observation experiment was performed in the Shanghai University of Sport between December 2008 and February 2009. PARTICIPANTS： Six volunteers wearing the experimental designed shoes were recruited from Nanjing Institute of Physical Education. METHODS： Three pairs of experimental shoes weighing 103 g were measured with shore hardness tester, as 51, 62 and 69 hardness values. Accordingly they were named soft shoes, medium hardness shoes and hard shoes. The subjects were asked to do a 60-minute walk test at the speed of 2 m/s on the running platform with the experimental designed shoes, and they were determined using the insole plantar pressure measurement system of German＇s Novel style series of Emed-pedar. MAIN OUTCOME MEASURE： The pressure, contact area and impulse in the sole of foot. RESULTS： With the increase in hardness soles, the pressure of center plantar was shown to move from the medial first metatarsal outwards by turns. Compared with barefoot walking, the trail length of the center plantar was prolonged in subjects with medium hardness shoes and hard shoes, while shortened in subjects with soft shoes. The total pressure when you walked with soft shoes and medium hardness shoes were reduced than barefoot walking, and the pressure of walking phase wearing these two types of shoes were also reduced, while total pressure and walking phase pressure with hard shoes were both increased compared with barefoot walking. The contact area was similar between soft shoes and medium hardness shoes, but the smallest in the hard shoes. Except the increase in the initial 10 minutes, the soft shoes had no change with the medium hardness shoes. The hard shoes were firstly increased but then declined. The total impulse of medium hardness shoes was the closest to bare feet, while that of soft shoes and hard shoes were increased compared with bare foot. CONCLUSION： The plantar pressure was the greatest in the hard shoes, then medium hardness shoes and last soft shoes; the contact area was the greatest in soft shoes, then medium hardness shoes and last hard shoes; the impulse was the greatest in hard shoes, then soft shoes, and last medium hardness shoes.
出处
《中国组织工程研究与临床康复》
CAS
CSCD
北大核心
2009年第46期9113-9116,共4页
Journal of Clinical Rehabilitative Tissue Engineering Research
