动力学变量的日间可靠性使用无标记运动捕捉用于单脚和单脚着陆任务
Matias Yoma1,2, Lee Herrington2, Chelsea Starbuck3
1Department of Health Professions Manchester Metropolitan University.
International journal of sports physical therapy
|August 4, 2025
概括
无标记运动捕获证明了对单脚任务的可靠生物机械数据收集,与基于标记器的系统相比. 这项技术为运动员在诸如和着陆等活动期间的定期监测提供了信心.
科学领域:
- 生物力学 生物力学
- 运动捕捉技术的技术.
- 运动科学 运动科学 运动科学
背景情况:
- 无标记运动捕捉在受伤相关活动中提供了重复生物机械数据收集的潜力.
- 有限的研究已经评估了无标记运动捕捉对单腿任务的可靠性.
研究的目的:
- 通过使用无标记运动捕捉,评估单腿和着陆任务期间的干部和下肢动力学的日间可靠性.
- 为了比较无标记运动捕捉与基于标记的运动捕捉在同一任务中的日间可靠性.
主要方法:
- 19名休运动员在一周间隔的两个会议中执行了单腿和着陆任务.
- 使用无标记 (Theia3D) 和基于标记的运动捕捉分析了干,部,膝盖和脚关节的角度.
- 使用全曲线分析 (RMSD,SPM) 和离散点分析 (ICC,SEM) 来评估可靠性.
主要成果:
- 无标记运动捕捉显示,在单脚和着陆任务中,所有关节和飞机的RMSD平均值较低.
- 离散点分析表明可靠性中等至良好 (ICC:0.77-0.83) 且无标记运动捕捉的SEM值较低.
- 基于标记器的运动捕捉显示了略高的RMSD和SEM值,但相对可靠性很好 (ICC:0.88-0.90).
结论:
- 无标记运动捕捉,特别是Theia3D,为单脚任务提供可靠的动力学数据.
- 测量误差与基于标记器的系统相似,支持其用于定期运动员监测.
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