一种神经肌肉骨建模方法,用于双边部力学,因为在地面上行走时会出现意想不到的侧面扰动
Yunchao Zhu1, Ji Huang1, Xin Ma2
1Academy for Engineering and Technology, Fudan University, 220 Handan Rd., Shanghai, 200433, China.
BMC musculoskeletal disorders
|October 2, 2023
概括
这项研究研究了在地面行走扰乱期间的关节协调. 干扰改变了部运动和肌肉激活,揭示了改善可穿戴机器人设备设计的平衡恢复策略.
科学领域:
- 生物力学 生物力学
- 人类运动科学科学 人类运动科学
- 机器人技术 机器人技术 机器人技术
背景情况:
- 步态动力学研究往往忽视了地面上的扰动.
- 多平面关节对地面行走扰动的协调反应尚未完全理解.
研究的目的:
- 为了研究关节在地面上行走时与控制的横向扰动的生物力学反应.
- 在扰乱条件下分析多平面关节协调和肌肉激活模式.
主要方法:
- 一个定制的设备在地面上行走时,向骨盆施加横向力.
- 与运动数据集成的特定人体神经肌肉骨模型 (NMS) 模拟了部反应.
- 统计参数映射 (SPM) 和肌肉联合激活指数 (CI) 分析了生物力学数据.
主要成果:
- 乱减少了斜腰部运动,但增加了正面和横向平面运动.
- 前腿的部绑架和外部旋转增加了.
- 肌肉同活化指数 (CI) 在大多数平面下降,表明改变了联合控制策略.
结论:
- 部表现出相位依赖的反应平衡恢复在步态扰乱期间.
- 通过肌肉CI调节关节硬度,可以实现精确的脚部位置.
- 这些发现有助于设计可穿戴机器人平衡辅助设备.
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