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相关概念视频

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Kendall's Coefficient of Concordance (W), also known as Kendall's W, is a non-parametric statistical measure used to assess the agreement or concordance between multiple raters or judges when they rank a set of items. It is often used when you have ordinal data (ranks) and you want to see if there is consistency or consensus among the raters. It is widely applied in research areas such as psychology, medicine, and social sciences, where multiple judges are asked to rank or rate subjects...
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相关实验视频

Updated: Jul 15, 2025

Cutting Procedures, Tensile Testing, and Ageing of Flexible Unidirectional Composite Laminates
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扩展切割对齐评分工具 (E-CAST) 的同时有效性

Lauren Butler1,2, Alexa Martinez2, Ashley Erdman3

  • 1Physical Therapy Florida International University.

International journal of sports physical therapy
|October 5, 2023
PubMed
概括

扩展切割对齐评分工具 (E-CAST) 显示,在侧切割期间评估女性运动员下肢对齐的有效性很好,对于大多数运动错误具有很强的预测准确性. 这个工具可以帮助识别体育中的受伤风险因素.

关键词:
方向的变化方向的变化运动分析 运动分析侧坡切断 切断 侧坡切断

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科学领域:

  • 生物力学 生物力学
  • 运动医学 运动医学
  • 运动学 运动学

背景情况:

  • 扩展切割对齐评分工具 (E-CAST) 是一种可靠的方法,用于评估横向切割时的下肢对齐.
  • 然而,它在捕获移动错误方面的有效性尚未确定.
  • 这项研究旨在确定E-CAST的并发有效性.

研究的目的:

  • 为了评估E-CAST的并发有效性.
  • 将2D视频分析中的视觉识别的运动错误与3D生物机械数据进行比较.
  • 评估E-CAST识别女性运动员受伤风险因素的能力.

主要方法:

  • 60名女运动员 (平均年龄为14.1岁) 进行了45度的边缘切割.
  • 使用了同时进行的2D视频和3D动作捕捉.
  • 一位临床医生使用E-CAST标准对2D视频进行了评分;3D数据包括关节角度和时刻. 进行了接收机运行特征 (ROC) 曲线分析.

主要成果:

  • 对于大多数E-CAST项目,ROC分析显示可接受的曲线下面面积 (AUC) 值 (0.67-0.91).
  • 灵敏度和特异性分别在70-85%和55-89%之间.
  • E-CAST在识别生物机械风险因素方面显示出高准确性,除了静态膝盖.

结论:

  • E-CAST 显示出良好的并发有效性,用于评估侧切割过程中下肢对齐.
  • 该工具有效地识别了与受伤风险相关的移动错误.
  • 对于静态膝关节的评估,可能需要进一步细化.