中国组织工程研究

中国组织工程研究 ›› 2011, Vol. 15 ›› Issue (2): 329-332.doi: 10.3969/j.issn.1673-8225.2011.02.034

• 组织构建基础实验 basic experiments in tissue construction • 上一篇    下一篇

人体坐姿上肢不同拉力负荷时足底的压力分布

杨建鑫1，马  超2，赵自强1，谈  诚3，张春林1   

  1. 1北京理工大学机械与车辆学院，北京市  100081
    2 北京信息科技大学现代测控技术教育部重点实验室，北京市  100192
    3中国航天员科研训练中心，北京市 100094
  • 收稿日期:2010-07-01 修回日期:2010-08-13 出版日期:2011-01-08 发布日期:2011-01-08
  • 作者简介:杨建鑫☆，男，1983年生，安徽省阜阳市人，汉族，北京理工大学在读博士，主要从事生物力学方面的研究。 chitangzibi@hotmail.com
  • 基金资助:

    北京市教委重点实验室开发课题(KF20091123204)。

Plantar pressure distribution in a sitting position under different tensile loads of the upper limbs  

Yang Jian-xin1, Ma Chao2, Zhao Zi-qiang1, Tan Cheng3, Zhang Chun-lin1   

  1. 1School of Mechanical Engineering, Beijing Institute of Technology, Beijing  100081, China
    2Key Laboratory of Modern Test & Control Technology, Ministry of Education, Beijing Information Science and Technology University, Beijing  100192, China
    3China Astronaut Research and Training Center, Beijing  100094, China
  • Received:2010-07-01 Revised:2010-08-13 Online:2011-01-08 Published:2011-01-08
  • About author:Yang Jian-xin☆, Studying for doctorate, School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China chitangzibi@hotmail.com
  • Supported by:

    the Foundation for Key Laboratory Development of Beijing Municipal Education Commission, No. KF20091123204

PDF

367

被引次数

1

摘要：

背景：足底压力测量技术已广泛应用于生物力学的步态研究，但多数研究都集中在正常行走或穿各种鞋时的步态时间特征和足底压力分布方面。
目的：探讨人体坐姿条件下上肢在不同拉力负荷过程中足底压力分布的特征。
方法：应用Seat 16/53 mFLEX足底压力测试系统记录40名健康受试者以坐姿在不同拉力负荷条件下的足底压力分布信号，分析在30%，50%，80%，100%最大随意肌力的拉力负荷下，不同年龄及不同性别受试者足底压力的分布。
结果与结论：在不同的拉力负荷下，青年组男性受试者的足底压力值明显大于女性(P < 0.05)，而中年组男性和女性的足底压力值间差异无显著性意义(P > 0.05)。同时，所有受试者均表现出左右足底受力不均一的现象。其中，青年组男性右脚足底压力明显小于左脚，而青年组女性均显示出右脚足底压力大于左脚的情况(P < 0.05)。中年组男性和女性左脚的足底压力在30%~80%最大随意肌力拉力负荷下变化不大，但在100%最大随意肌力拉力负荷下明显减小(P < 0.05)。说明年龄和性别对不同拉力负荷下人体足底压力均有影响。

关键词: 拉力负荷, 足底压力, 运动疲劳, 坐姿, 生物力学

Abstract:

BACKGROUND: Plantar pressure measurement has been widely used in biomechanical gait studies, which mainly concentrated on time features and plantar pressure distribution of people at normal walking or wear different kinds of shoes.
OBJECTIVE: To explore the plantar pressure distribution in a sitting position under different tensile loads of the upper limbs. 
METHODS: Plantar pressure distribution signals of 40 sitting subjects with different tensile load were recorded using Seat 16/53 mFLEX test system. The plantar pressure distribution of different age and gender under 30%, 50%, 80%, and 100% maximal voluntary contraction (MVC) conditions were analyzed.
RESULTS AND CONCLUSION: Under different tensile loads, the plantar pressure value of young male was obviously higher than that of females (P < 0.05). But, the differences were not significant in middle-aged group (P > 0.05). Regardless of gender differences, all participants were shown inhomogenous stress around the plantar. In different load, youth male right plantar pressure was smaller than left, but the young female’s right plantar pressure was significantly greater than the left (P < 0.05). The left plantar pressure of the middle-aged group changed little at 30-80% MVC, but the difference was obviously decreased in 100% MVC (P < 0.05). The results demonstrated that both age and sex affect human plantar pressure changes under different tensile loads.

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