My Jump 2应用程序测量大学生下肢垂直刚度的信度和效度  

Reliability and validity of My Jump 2 application to measure lower limb vertical stiffness of college students

作　　者：宋维君[1] 毛鑫玉 陈超[2] 王志海 曲开源 杨明明 王丹 Song Weijun;Mao Xinyu;Chen Chao;Wang Zhihai;Qu Kaiyuan;Yang Mingming;Wang Dan(Sports Hospital affiliated to Chengdu Sports University,Chengdu 610041,Sichuan Province,China;School of Elite Sport,Shanghai University of Sport,Shanghai 200438,China)

机构地区：[1]成都体育学院附属体育医院,四川省成都市610041 [2]上海体育学院,竞技运动学院,上海市200438

出　　处：《中国组织工程研究》2024年第2期172-176,共5页Chinese Journal of Tissue Engineering Research

基　　金：“上海市海外高层次人才”计划(TP2019072),项目负责人:王丹;江苏省高校自然科学研究面上项目(17KJB320008),项目负责人:王丹;上海市人类运动能力开发与保障重点实验室(上海体育学院)(11DZ2261100),项目参与人:王丹;成都体育学院附属体育医院临床创新课题(LCCX20B01),项目负责人:宋维君。

摘　　要：背景:证实My Jump 2应用程序测量下肢垂直刚度的信效度水平,可为其作为Kistler三维测力台测量下肢垂直刚度的替代方法提供可能性。目的:验证My Jump 2应用程序测量大学生下肢垂直刚度的信效度。方法:通过Kistler三维测力台和My Jump 2应用程序采集受试者的跳深数据并计算受试者的下肢垂直刚度。采用组内相关系数分析My Jump 2应用程序与Kistler三维测力台测得的数据,以验证My Jump 2应用程序的信度。将2个设备之间的偏倚值和平均值绘制成Bland-Altman图,验证2种测试方法之间的一致性。最后,使用克朗巴哈系数(α)和变异系数分析My Jump 2应用程序在30,40 cm高度的重测信度,使用皮尔逊积矩相关系数分析My Jump 2应用程序的相关性。结果与结论:①My Jump 2应用程序在测量下肢垂直刚度时具有较高的信效度;②同时由于其具有低成本、携带便捷和可用于大样本的场地测试的优势,可作为测力台的替代工具在大学生以及类似人群中对下肢垂直刚度进行测试。BACKGROUND:Confirming the reliability and validity of the My jump 2 application for measuring lower limb vertical stiffness may offer the possibility of it as an alternative to the Kistler three-dimensional force platform for measuring lower limb stiffness.OBJECTIVE:To verify the reliability and validity of the My Jump 2 application in measuring lower limb vertical stiffness of college students.METHODS:The drop jump data of the participants were collected through the Kistler three-dimensional force platform and the My Jump 2 application,and the vertical stiffness of the participants’lower limb vertical stiffness was calculated.The intraclass correlation coefficient was used to analyze the data measured by the My Jump 2 application and the Kistler three-dimensional force platform,attempting to verify the reliability of the My Jump 2 application.The bias and average between the two devices were drawn into a Bland-Altman diagram to verify the consistency between the two test methods.Finally,the test-retest reliability of the My Jump 2 applications at 30 cm and 40 cm was analyzed using the Cronbach’s alpha(α)and coefficient of variation.Pearson product-moment correlation was used to analyze the correlation of My Jump 2 applications.RESULTS AND CONCLUSION:My Jump 2 application has high reliability and validity when measuring the vertical stiffness of the lower limb.At the same time,due to its advantages of low cost,convenient portability and field testing for large samples,it can be used as an alternative to the Kistler three-dimensional force platform to test the vertical stiffness of the lower limb in college students and similar populations.

关 键 词：下肢刚度 信度 效度 跳深 

分 类 号：R459.9[医药卫生—治疗学] R318[医药卫生—临床医学] G804.6[文化科学—运动人体科学]