基于GUI的地面反应力估计工具的全周期和特定时间的验证,用于在没有强力板的情况下进行临床步态分析
Pegah Jamali1, Li-Shan Chou2, Robert D Catena1
1Washington State University, Pullman, Washington, 99164-1410, USA.
Medical engineering & physics
|June 13, 2025
概括
这项研究验证了一种易于使用的工具,用于在步态分析过程中估计地面反应力 (GRF). 该工具准确地预测了斜边GRF,为生物力学数据收集提供了强力板的实用替代方案.
科学领域:
- 生物力学 生物力学
- 临床步态分析 临床步态分析
- 人类运动科学科学 人类运动科学
背景情况:
- 准确的地面反应力 (GRF) 测量对于临床步态分析至关重要.
- 传统的压力板方法可能会耗时,并限制数据收集.
- 现有的非力板GRF估计方法通常是计算密集的.
研究的目的:
- 评估内置的,基于图形用户界面 (GUI) 的工具的准确性,用于在步行时估计GRF.
- 将估计工具的性能与力板进行比较作为黄金标准.
主要方法:
- 27名健康的成年人走过双重力板.
- 估计的GRF和压力中心 (CoP) 与力板数据进行了比较.
- 使用相关性,残余错误分析和统计参数映射 (SPM) 来评估准确性.
主要成果:
- 估计的GRF大小在前后 (R2=0.86) 和垂直 (R2=0.86) 方向显示出高精度,但不是中侧 (R2=0.30).
- SPM在中间和后端状态中发现了斜面平面错误,没有中间侧面错误.
- 估计的COP具有高度准确性 (R2≥0.99),尽管始终是真正的COP之前的.
结论:
- 基于GUI的工具提供了精确的斜式GRF预测,与复杂的方法相比.
- 该工具展示了用户友好的实现,最小的早期立场错误.
- 这为临床医生提供了一个切实可行的替代方案,他们需要没有强力板的生物力学数据.
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