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开发和验证了一种新的脚关节肌肉骨模型
Tao Liu1, Andrea Dimitrov2, Nadr Jomha3
1Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada. tao6@ualberta.ca.
Medical & biological engineering & computing
|January 9, 2024
概括
这项研究开发了一种新的肌肉骨脚模型,用于预测行走期间的关节接触力. 经过验证的模型准确地模拟了脚机制,有助于植入物设计和治疗脚疾病.
科学领域:
- 生物力学 生物力学
- 肌肉骨系统建模
- 整形外科 整形外科 整形外科
背景情况:
- 目前的脚模型简化了关节机制,限制了接触特征的预测.
- 精确的脚关节接触机制对于有效的植入物设计和治疗脚疾病至关重要.
研究的目的:
- 开发一种新的肌肉骨脚关节模型,能够预测接触力学.
- 模拟肌肉和关节的反应力量在步行使用开发的模型.
主要方法:
- 在OpenSim中将脚关节建模为多轴关节,模拟骨接触 (大腿骨,大腿骨,大腿骨).
- 验证了模型与实验数据对被动刚性和接触模式的验证.
- 将验证的模型集成到下半身模型中,以模拟步态,预测接触特征,动力学和肌肉力量.
主要成果:
- 与实验研究相比,该模型显示了类似的脚旋转时刻关系和接触模式.
- 预测的峰值接触力和步行过程中的肌肉激活模式与现有文献有很好的一致性.
- 脚动力学 (背部/脚下屈曲,反转/反转) 也显示出很好的一致性.
结论:
- 开发的肌肉骨脚模型准确地代表了脚关节的功能.
- 该模型可可靠地预测步行过程中脚关节接触特征,有利于生物力学研究和临床应用.
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