在人类运动过程中下肢肌肉协同激活地图:从慢步到跑步
Lorenzo Fiori1,2, Stefano Filippo Castiglia3,4, Giorgia Chini1
1Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, INAIL, Via Fontana Candida 1, Monte Porzio Catone, 00078 Rome, Italy.
Bioengineering (Basel, Switzerland)
|March 27, 2024
概括
与步行相比,跑步涉及不同的肌肉联合激活模式,由中枢神经系统 (CNS) 调节以保持稳定. 增加的全球协同激活可以提高整个四肢的性和控制在更快的步伐.
科学领域:
- 生物力学 生物力学
- 神经科学是一个神经科学.
- 人类运动科学科学 人类运动科学
背景情况:
- 中枢神经系统 (CNS) 使用肌肉协同激活来控制运动和关节硬.
- 有限的研究已经探索了下肢肌肉联合激活模式,特别是在跑步期间.
- 了解步态转变对于分析神经肌肉控制策略至关重要.
研究的目的:
- 为了研究下肢肌肉在步行过程中的协同激活的差异,跨越各种速度,从步行到跑步.
- 分析肌肉联合激活,时空参数和运动学之间的关系.
- 探索中枢神经系统在适应不同步行需求的协同激活中的作用.
主要方法:
- 19名健康的跑步者以0.8公里/小时至9.3公里/小时的速度行走和跑步.
- 使用可变时间的多肌肉协同激活函数 (TMCf) 计算的肌肉协同激活,使用全局, flexor-extension 和 rostro-caudal 方法.
- 测量时空参数和动力学数据,包括质量中心 (CoM) 位移.
主要成果:
- 在所有协同激活方法中,步行速度显著影响TMCf,时空和运动参数.
- 在从步行到跑步的过渡过程中,观察到协同激活和动力学方面的明显差异.
- 全球协同激活 (CI) 与垂直 CoM 位移和全球活动中心 (CoA) 显示出强烈的正相关性.
结论:
- 走路和跑步表现出独特的肌肉协同激活模式和运动特征.
- 跑步表现出更同步和稳定的全肢硬性,这可能是由于中枢神经系统的感觉控制集成.
- 全球协同激活似乎是CNS的一个关键策略,用于管理运行需求的增加.
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