用OpenCap进行基于现场的地面反应力估计和评估
Jasper Verheul1, Mark A Robinson2, Sophie Burton1
1Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK.
Journal of biomechanics
|March 10, 2024
概括
一个新的无标记运动捕获系统,OpenCap,准确地估计跳跃运动的地面反应力 (GRF) 配置文件. 这种低成本,现场可行的技术有助于运动员和从业人员的生物机械监测.
科学领域:
- 生物力学 生物力学
- 运动科学 运动科学 运动科学
- 运动捕捉技术的技术.
背景情况:
- 基于现场的生物机械监测需要具有成本效益的方法来评估动力学和动力学.
- 无标记运动捕捉为可访问的生物机械分析提供了潜力.
研究的目的:
- 评估OpenCap在跳跃过程中估计地面反应力 (GRF) 配置文件的准确性和可用性.
- 为了验证估计的GRF变量与黄金标准的力量平台相比.
主要方法:
- 15名休运动员完成了四项跳跃任务 (反动,,双边下降,单边下降).
- 使用OpenCap (无标记运动捕捉) 捕获了全身动态图.
- 使用基于机械的方法估计了垂直GRF,并根据力板数据进行了验证.
主要成果:
- 六个GRF变量显示偏差或协议极限<5%跨跳跃运动.
- 17个和19个变量分别具有偏差和5%-15%之间的协议限制.
- 估计的力量<15%偏差充分评估了GRF变量在运动员内部的变化.
结论:
- OpenCap显示了接近可接受的准确性,用于估计跳跃运动中的GRF配置文件.
- 该方法可以在现场设置中监测力变量和细分动力学.
- 这项技术为研究人员和从业人员提供了高效,定期和广泛的生物机械监测.
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