北京生物醫(yī)學(xué)工程

人體坐姿上肢扭力操作下足底壓力分布研究

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

作者：楊建鑫馬超周前詳張春林

單位：北京理工大學(xué)機(jī)械與車(chē)輛學(xué)院（北京100081）

分類(lèi)號(hào)：

出版年·卷·期（頁(yè)碼）：2010·29·5（503-507）

摘要：

目的通過(guò)測(cè)試人體坐姿條件下上肢受不同扭力負(fù)荷過(guò)程中足底壓力分布特征，研究年齡、性別因素對(duì)足底壓力的影響。方法 40名受試者按照性別和年齡分為4組，分別為青年、中年男性和女性組，每組10人。以受試者坐姿、不同負(fù)荷扭力操作（即對(duì)應(yīng)不同百分比最大收縮力（MVC））條件下，記錄其足底壓力分布信號(hào)，分析在30%、50%、80%和100%MVC的扭力負(fù)荷下，不同年齡和性別足底壓力分布的變化規(guī)律。結(jié)果青年組男性足底壓力值明顯大于青年女性組（P<005）；所有受試者均表現(xiàn)出左右足底受力不均一現(xiàn)象，青年組男性和女性右腳足底壓力均明顯大于左腳（P<005）；在30%～80%扭力負(fù)荷范圍內(nèi)，中年男性組左（右）腳和女性組左腳的足底壓力變化不大，但是在100%MVC扭力負(fù)荷下足底壓力最小（P<005）。結(jié)論本試驗(yàn)研究證實(shí)年齡和性別因素對(duì)于不同扭力負(fù)荷下的人體足底壓力分布存在影響。

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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