中国组织工程研究 ›› 2024, Vol. 28 ›› Issue (2): 172-176.doi: 10.12307/2023.850

• 组织构建与生物力学 tissue construction and biomechanics • 上一篇    下一篇

My jump 2应用程序测量大学生下肢垂直刚度的信度和效度

宋维君1,毛鑫玉2,陈  超2,王志海2,曲开源2,杨明明2,王  丹2   

  1. 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
  • 收稿日期:2022-06-28 接受日期:2022-11-17 出版日期:2024-01-18 发布日期:2023-06-29
  • 通讯作者: 王丹,博士,教授,上海体育学院,竞技运动学院,上海市 200438
  • 作者简介:宋维君,男,1986年生,四川省成都市人,汉族,主治医师,主要从事运动骨伤研究。 毛鑫玉,女,1998年生,湖北省黄冈市人,汉族,硕士,主要从事疲劳恢复研究。
  • 基金资助:
    “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

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

Song Weijun1, Mao Xinyu2, Chen Chao2, Wang Zhihai2, Qu Kaiyuan2, Yang Mingming2, Wang Dan2   

  1. 1Sports Hospital affiliated to Chengdu Sports University, Chengdu 610041, Sichuan Province, China; 2School of Elite Sport, Shanghai University of Sport, Shanghai 200438, China
  • Received:2022-06-28 Accepted:2022-11-17 Online:2024-01-18 Published:2023-06-29
  • Contact: Wang Dan, PhD, Professor, School of Elite Sport, Shanghai University of Sport, Shanghai 200438, China
  • About author:Song Weijun, Attending physician, Sports Hospital affiliated to Chengdu Sports University, Chengdu 610041, Sichuan Province, China Mao Xinyu, Master, School of Elite Sport, Shanghai University of Sport, Shanghai 200438, China
  • Supported by:
    Shanghai Overseas High-Level Talents Program, No. TP2019072 (to WD); Natural Science Research Project of Jiangsu Universities, No. 17KJB320008 (to WD); Shanghai Key Laboratory of Human Movement Development and Protection (Shanghai University of Sport), No. 11DZ2261100 (to WD [project participart]); Clinical Innovation Project of Sports Hospital of Chengdu Sports University, No. LCCX20B01 (to SWJ)

摘要:


文题释义:

下肢垂直刚度:通常用于描述下肢在矢状面上的运动,是指身体质心在垂直地面反作用力下的变形程度,描述了最大垂直地面反作用力与垂直重心位移之间的比率。
信效度:信度即测量工具的可靠性,效度即测量工具的有效性、准确性。

My jump 2应用程序:该应用程序为Balsalobre等在苹果系统中发布的应用程序,可进行垂直方向上如反向纵跳、深蹲跳、跌落跳跳跃高度和水平方向立定跳远距离的测量,兼具下肢垂直刚度测量的功能。


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。

https://orcid.org/0000-0003-1528-239X(毛鑫玉)

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程

关键词: 下肢刚度, 信度, 效度, 跳深

Abstract: 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.

Key words: lower limb stiffness, reliability, validity, drop jump

中图分类号: