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应用自下而上的建模方法的OpenSim胸脊柱模型类似于自上而下的方法

Jacob J Banks¹, Neal E Wiggermann², Brett T Allaire³

¹Baxter International, Deerfield, IL, USA; Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Boston, MA, USA; Department of Orthopaedic Surgery, Harvard Medical School, Boston, MA, USA.

Journal of biomechanics

|July 18, 2024

概括

脊柱生物力学的自下而上 (BU) 方法与上向下 (TD) 方法在提升过程中估计脊柱负荷时有很好的一致性. 这证实了BU方法在临床和研究环境中使用的有效性.

科学领域:

生物力学生物力学
脊柱运动学和运动学
肌肉骨系统建模

背景情况:

脊柱负荷分析传统上使用自上而下的 (TD) 或自下而上的 (BU) 方法.
虽然生物机械学家通常倾向于BU,但当前的建模趋势倾向于TD.
TD和BU方法之间的协议对于模型验证至关重要,可以帮助处理数据限制.

研究的目的:

使用已建立的TD和修改的BU OpenSim模型,比较腰部和胸部脊椎间关节 (IVJs) 的内部时刻和力.
为了评估TD和BU在各种提升任务期间的方法之间的协议.

主要方法:

十二名参与者以不同的速度和重量进行了斜和侧面提升.
动力学和外部力量被捕获.
使用OpenSim与TD和BU模型估计了脊椎间关节 (IVJ) 动力学.

主要成果:

在初级平面中发现了BU和TD方法之间的IVJ联合时刻的高时间 (R2 = .94 ± .17) 和大小协议 (RMSE = 6.2 ± 3.5 Nm).
通过布兰德-阿尔特曼分析观察到高峰IVJ力 (压缩和剪切) 的可接受一致性.
对于低幅度的离轴时刻,发现了微小的差异.

结论:

这些结果支持了自下而上 (BU) 方法用于估计脊柱运动的有效性和应用.
该研究验证了BU模型中使用的链接细分参数.
一个新的BU胸脊柱模型是公开的.

关键词:

反向动力学的反向动力学起重起重起重起重起重肌肉骨模型的模型从上到下,从上到下.验证验证验证验证

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