An important task in biomechanics is human body articulations' internal torques measurement. This is known as a kinetic or inverse-dynamics problem. Its solution requires a combination of kinematic and dynamic measurements with a biomechanical model, involving subject-related anthropometric parameters. The uncertainty-evaluation thereof is here considered. The method poses on a probabilistic model of the associated measurement system, according to the “Guide to the expression of uncertainty in measurement” general principles. We consider a comprehensive set of influence quantities, including markers' misplacement or parasite movements. The anthropometric parameters' uncertainty is discussed in detail. The proposed approach helps to identify the most influential experimental factors.

中文翻译：

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评估生物力学逆动力分析中不确定性的全局方法：数学模型和实验验证


生物力学的一项重要任务是人体关节的内部扭矩测量。这称为动力学或逆动力学问题。其解决方案需要将运动学和动态测量与生物力学模型相结合，涉及与受试者相关的人体测量参数。这里考虑其不确定性评估。该方法根据“测量不确定度表达指南”一般原则，建立相关测量系统的概率模型。我们考虑一套全面的影响量，包括标记的错位或寄生虫的移动。详细讨论了人体测量参数的不确定性。所提出的方法有助于确定最有影响力的实验因素。