基于Footscan的青年女性足掌、跟区压力规律分析

Analysis of Pressure Patterns of the Foot Palm and Heel Areas of Young Women Based on Footscan

目的旨在分析并总结出青年女性足掌、跟区压力的规律。方法采用Footscan足底压力步态分析系统对正常状态下行走时足底压力的分布情况进行记录。随机选取足部正常、身体状况良好的60名青年女性作为样本,分别记录样本的身高、体重、年龄以及生源地信息,利用SPSS21.0数据分析软件对系统所得的不同受试对象的足趾区、跖区、弓区、跟区的足底压力参数指标进行分析,得出方差数据表。结果通过观测分析,得出以下结论:在正常条件下,左、右足足底压力大部分区均呈现出良好的对应关系;趾区中第1趾区的峰值压强、压力有效接触面积、冲量均大于第2~5趾区,右足几乎均大于左足;跖区中压力峰值压强、冲量均在第3跖区最大,在第5跖区最小;第1跖区足底跖区压力有效接触面积最大;跟区中足跟区内侧的峰值压强、有效接触面积均大于足跟区外侧;左足的足跟区外侧冲量大于足跟区内侧,右足的足跟区内侧冲量大于足跟区外侧。结论青年女性足掌、跟区压力规律性显著,提高了对青年女性足部生物力学特征的辨识度,补充了司法鉴定的理论基础。

Objective To summarize the pressure patterns of young women’s foot palms and heels.Methods The Footscan plantar pressure gait analysis system was used to record the distribution of plantar pressure under normal walking conditions.Sixty young women with normal feet and good physical condition were randomly selected as the subjects of this experiment.The height,weight,age and origin information of the subjects were recorded respectively.SPSS 21.0 software was used to analyze the plantar pressure parameters in the toe,metatarsal,arch and heel area of different subjects,and the variance data was obtained.Results Under normal conditions,most of the plantar pressure areas of the left and right feet showed good correspondence.For toe area,the peak pressure,effective contact area and impulse of the first toe area were greater than those of the second to fifth toe area,and the right foot was almost greater than the left foot.For metatarsal area,the peak pressure and impulse were the largest in the third metatarsal area and were the smallest in the fifth metatarsal area.The effective contact area of plantar pressure in the first plantar area was the largest.For heel area,the peak pressure and effective contact area inside the heel area were greater than the outside of the heel area.The impulse outside the heel area of the left foot was greater than the inside of the heel area,and the impulse inside the heel area of the right foot was greater than the outside of the heel area.Conclusion The regularity of the pressure patterns of the foot palm and heel area of young women is significant.The results of this study improve the recognition of the biomechanical characteristics of young women’s feet and supplement the theoretical basis in related forensic appraisal.