Populations of different ethnicities may present different movement capacities and muscular function adaptations. The purpose of this study was to investigate the differences of motion and loading in the lower extremity during dynamic deep squats between Asian and Caucasian individuals using OpenSim modelling technique with a customized squat-specific musculoskeletal model. Twenty-four participants joined the test performing the step-squat test, with right foot stepping side, squatting, and returning. The one-dimensional statistical parametric mapping package was used for statistical analysis. The main findings of the current study were as follows: (1) significant lower squat depth was observed in the Asian individuals, (2) the greater knee range of motion and contact forces were found in the Asian individuals, and (3) the greater ankle contact forces in the Caucasian individuals were notable while performing the deep squat compared to the Asian group. Knowledge found in the current study may provide implication for exercise practitioners and physiotherapists while designing schemes for the prevention of loading accumulation in the lower extremity.

中文翻译：

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亚洲和高加索人深蹲深蹲下肢负荷的OpenSim肌肉骨骼建模比较研究

不同种族的人口可能表现出不同的运动能力和适应肌肉的功能。这项研究的目的是使用OpenSim建模技术和定制的深蹲特有的肌肉骨骼模型，研究亚洲和高加索人在动态深蹲期间下肢运动和负重的差异。24名参与者加入了测试，进行了下蹲测试，右脚踩着一面，蹲下并返回。一维统计参数映射程序包用于统计分析。当前研究的主要发现如下：（1）在亚洲人中观察到的下蹲深度明显较低；（2）在亚洲人中发现的膝关节活动和接触力较大，（3）深蹲时，高加索人的脚踝接触力明显高于亚洲人。当前研究中发现的知识可能对运动从业者和物理治疗师有启发意义，同时设计预防下肢负荷积聚的方案。