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传统步态模型II变体对步态动力学和运动学的影响

Britney Kerr¹, Jessica Pascoe¹, Pam Thomason¹

¹Hugh Williamson Gait Analysis Laboratory, The Royal Children's Hospital, 50 Flemington Road, Parkville, Melbourne, Victoria 3052, Australia; Murdoch Children's Research Institute, 50 Flemington Road, Parkville, Victoria 3052, Australia.

|July 23, 2025

概括

传统步态模型II (CGM2) 显示了儿童步态分析的差异,特别是部,膝盖和脚运动. 一致的模型变体和处理对于在儿科步态研究中可靠的数据比较至关重要.

科学领域:

生物力学生物力学
儿科步态分析小儿步态分析
运动捕捉技术的技术.

背景情况:

传统步态模型II (CGM2) 是为了克服传统步态模型 (CGM) 的局限性而开发的.
儿科研究的有限证据限制了儿童中心在CGM2采用.
CGM2为步态分析引入了标准化的改进.

研究的目的:

评估常规步态模型II (CGM2) 变体对典型发育儿童的步态动力学和动力学的影响.
量化由CGM2模型变化产生的步态参数差异.
提供支持儿童群体使用CGM2的数据.

主要方法:

来自32名典型发育儿童的3D步态分析数据的二次分析.
使用CGM2模型变体重新处理步态动力学和动力学,包括新的关节中心方程,反向动力学和标记集群.
使用统计参数映射1D和根平均平方差 (RMSD) 的动力学和动力学差异的统计比较.

主要成果:

在CGM2变体中观察到显著的动力学和动力学差异.
与CGM1.0.0相比,部 (6.1°RMSD),膝盖 (22.7°RMSD) 和脚 (9.9°RMSD) 的横横平面是最大的差异.
其他步态变量显示平均RMSD<5°对于动力学,<0.1Nm对于瞬间,和<0.19W对于功率;步态概况得分变化平均<0.14°.

结论:

CGM2通过改善关节中心定位,减少人体测量要求,并结合反向动力学和集群跟踪来增强步态分析.
该研究强调了需要一致的模型变体和处理方法来实现可靠的步态数据解释的必要性.
这些发现支持CGM2在标准化儿科步行分析方面的潜力.

关键词:

在CGM2中,它是CGM2.步态分析步态分析动力学是动力学.运动学运动学儿科儿科儿科

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