在多体模型中对干部肌肉同活化预测的评估
Alice Caimi1, Stephen J Ferguson1, Dominika Ignasiak1
1Institute for Biomechanics, ETH Zurich, Zurich, Switzerland.
Journal of biomechanics
|April 24, 2024
概括
这项研究表明,肌肉骨模型可以预测对抗性肌肉协活性,特别是3D或多关节肌肉. 这些模型适用于模拟体肌肉活动在曲等运动期间.
科学领域:
- 生物力学 生物力学
- 肌肉骨系统的建模
- 人类运动分析分析
背景情况:
- 在模拟中,肌肉优化通常会最大限度地减少努力,通常不包括对抗性肌肉激活.
- 对抗性肌肉激活对于在运动过程中保持动态平衡至关重要.
- 现有的肌肉骨模型难以预测同活化,限制了它们的生理相关性.
研究的目的:
- 确定肌肉骨模型预测对抗性肌肉协活性的条件.
- 评估影响肌肉协作激活预测的因素.
- 为了将模型预测与腰椎实验电肌图 (EMG) 数据进行比较.
主要方法:
- 开发简化的2D和3D多体模型,以确定协作激活的预测条件.
- 使用现有的AnyBody腰椎模型来测试腹内压力 (IAP) 和招聘标准的影响.
- 预测的对抗剂激活与公布的EMG数据在干部曲和横向曲期间的比较.
主要成果:
- 在使用多关节肌肉或3D配置的简化模型中预测了协同活性.
- 腰椎模型与曲和横向曲期间的实验性协作激活比率有很好的一致性.
- 腹内压力的影响最小,而基于武力的招募标准显著降低了预测的协同激活.
结论:
- 在多体模型中,三维或多关节肌肉是必要的,以预测协同活动,除非是完美的对手.
- 预测的对手激活主要平衡3D时刻,可能解释与生理数据的差异.
- 这项研究验证了多体干模型在预测肌肉协同活动方面的实用性.
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