中国正常成人步行时空参数分析

目的:探讨中国正常成人的步行特征,为临床步态分析提供科学参考依据。方法:365名正常受试者,按性别、年龄分为20—29岁组、30—39岁组、40—49岁组、50—59岁组、60—75岁组共10组。应用人体步态垫测量与分析系统,测试受试者自由行走时的步速、步长、步幅、步长时间、摆动时间、支撑时间、单足支撑时间、双足支撑时间等时空参数,并对每位受试者的身高、体重进行测试。结果:年龄组内平均步速,除30—39岁组、60—75岁组外,男性均大于女性(P<0.05),50岁以后,男、女步速均减慢,与50岁以前相比差异具有显著性(P<0.01);各年龄组步长,男性均大于女性(P<0.05),女性步长在50岁以后减小,与50岁以前相比差异具有显著性(P<0.01),男性步长在60岁以后减小,明显小于60岁以前步长(P<0.01)。结论:应用人体步态垫测量与分析系统,首次建立中国正常成人步行时空参数值参考范围,初步揭示中国正常成人的步行时空特征。

Temporal-spatial parameters of gait: reference data of normal subjects from Chinese adults

Objective:To research temporal-spatial parameters characteristics of gait of Chinese normal adults to provide reference for gait analysis in clinic.Method:A total of 365 healthy adults were divided into 10 groups according to their ages and gender:20—29 years group,30—39 years group,40—49 years group,50—59 years group and 60—75 years group.All the subjects received gait analysis with the gait mat(a gait analysis system) which could provide temporal-spatial parameters:velocity,step length,stride length,step time,swing time,stance time and single support time and double support time etc.Height and weight of the subjects were also been measured.Result:The men walked faster than women except 30—39 and 60—75 years groups(P<0.05).The velocity decreased with age in both genders and started to decrease after 50 years old for both men and women(P<0.01).The step lengths of men were longer than that of women(P<0.05),and it started to decrease after 50 years old for women and after 60 years old for men(P<0.01).Conclusion:This is the first time to establish the reference base of temporal-spatial parameters of Chinese normal adults with gait mat and to reveal the characteristics of temporal-spatial parameters of gait of Chinese normal adults.