北京生物医学工程

人体坐姿上肢扭力操作下足底压力分布研究

Plantar Pressure Distributions under Upper Limb Torque Loads in Upper Body Posture Condition

作者：杨建鑫马超周前详张春林

单位：北京理工大学机械与车辆学院（北京100081）

分类号：

出版年·卷·期（页码）：2010·29·5（503-507）

摘要：

目的通过测试人体坐姿条件下上肢受不同扭力负荷过程中足底压力分布特征，研究年龄、性别因素对足底压力的影响。方法 40名受试者按照性别和年龄分为4组，分别为青年、中年男性和女性组，每组10人。以受试者坐姿、不同负荷扭力操作（即对应不同百分比最大收缩力（MVC））条件下，记录其足底压力分布信号，分析在30%、50%、80%和100%MVC的扭力负荷下，不同年龄和性别足底压力分布的变化规律。结果青年组男性足底压力值明显大于青年女性组（P<005）；所有受试者均表现出左右足底受力不均一现象，青年组男性和女性右脚足底压力均明显大于左脚（P<005）；在30%～80%扭力负荷范围内，中年男性组左（右）脚和女性组左脚的足底压力变化不大，但是在100%MVC扭力负荷下足底压力最小（P<005）。结论本试验研究证实年龄和性别因素对于不同扭力负荷下的人体足底压力分布存在影响。

Objective Through investigating the plantar pressure distribution characteristics with the condition of upper body posture in tension loading, we discussed the effects of age and sexuality on plantar pressure distribution. Methods Forty subjects were divided into 4 groups according to age and gender, each group of 10 subjects respectively. We recorded all the data of plantar pressure for each subject, all subjects were in upper body posture and under 30%, 50%, 80% and 100% percentage of MVC, and explored the differences between groups. Results The plantar pressure values of men youth were obviously higher than those of female (P<005). All participants showed different between right and left plantar pressures, youth male and female right plantar pressures were bigger than left plantar pressures (P<005). The plantar pressures of middle-aged men left (right) and women did not change obviously while the MVC set from 30% to 80%, but the plantar pressure was the smallest at 100% MVC torque load (P<005). Conclusion The experimental results proved that the plantar pressure was influenced by age and sexuality.

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