Abstract:  Objective To investigate whether there is a correlation in plantar pressure when the same person wears different types of shoes, and to explore the possibility of distinguishing between cloth shoes and casual shoes based on plantar ptessure patterns. Methods The Footscan plantar pressure gait analysis system was used to record the magnitude and distribution of plantar pressure of the subjects during normal walk when wearing cloth shoes or casual shoes. IBM SPSS Statistics 24.0 was used for data analysis, and Kendall’s W test was used to assess the consistency of peak pressure and impulse across different plantar regions, analyzing the stability of the plantar pressure distribution in each area. Kendall’s tau-b correlation test was used to examine the correlation for peak pressure and impulse between barefoot and shod conditions. Discriminant analysis was used to establish a functional model to compare the plantar pressure of the same person wearing different types of shoes. Results The distribution of plantar pressure in each region was relatively stable, and there were significant correlations between plantar pressure patterns when wearing cloth shoes and casual shoes. Discriminant analysis has high accuracy in distinguishing the plantar pressure patterns of the same person wearing different shoes. Conclusion During normal walking, the plantar pressure patterns of the same person wearing cloth shoes and causal shoes are significantly correlated and can be accurately classified, which supplements the theoretical basis of gait analysis. 

Key words: plantar pressure, discriminant analysis, peak pressure, impulse

摘要： 目的 探究同一人穿不同种类的鞋对足底压力的影响，并通过比较二者的不同进一步研究能否对穿布鞋和休闲鞋的足底压力进行分类识别。方法 采用Footscan足底压力步态分析系统对正常状态行走时穿布鞋和休闲鞋的足底压力的大小和分布情况进行记录，利用IBM SPSS Statistics 24.0进行数据分析，运用肯德尔（Kendall’s） W一致性检验分别计算足底各区域峰值压力和冲量的一致性，分析各区域足底压力分布的稳定性，运用Kendall’s tau-b相关性检验计算赤足和穿鞋峰值压力和冲量的相关性，并通过判别分析法建立函数模型对同一人穿不同种类鞋的足底压力进行比较。结果 研究结果表明，受试者穿鞋时各区域足底压力分布具有较高稳定性，穿布鞋和休闲鞋时足底压力具有显著相关性，利用判别分析法比较同一人穿不同鞋的足底压力具有较高的正确率。结论 正常状态行走时同一人穿布鞋和休闲鞋足底压力显著相关，并能准确进行识别，补充了步法检验的理论基础。

关键词: 足底压力, 判别分析, 峰值压力, 冲量