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在跨越障碍物时肌肉力量-长度动态表明延迟恢复和转向更"杆式"的功能在鸟类与自身感知缺陷的缺陷
M Janneke Schwaner1, Joanne C Gordon2, Andrew A Biewener3
1Department of Ecology and Evolutionary Biology, University of California, Irvine, Irvine, CA 92697, USA.
The Journal of experimental biology
|June 7, 2023
概括
几内亚的侧侧胃角 (LG) 的自我再生损害了在走路时遇到障碍物的恢复. 与完整的LG相比,自身受体缺陷导致肌肉功能改变和长时间的,类似于的反应.
科学领域:
- 生物力学 生物力学
- 神经科学是一个神经科学.
- 动物的运动 动物的运动
背景情况:
- 距离腿部肌肉在不平坦的地形上稳定了运动.
- 之前的研究集中在跑步上,不清楚走路的稳定机制.
研究的目的:
- 在走过障碍物时,研究体内侧面胃膜 (LG) 功能.
- 将完整的LG (iLG) 与自我再生的LG (rLG) 的肌肉功能进行比较,以评估自身感知反缺陷.
主要方法:
- 在水平步行和障碍步行期间,iLG和rLG海的肌肉功能 (EMG,力,工作) 的比较.
- 在障碍后评估肌肉活动,力量,工作和四肢姿势的变化.
主要成果:
- 完整的LG表现出快速的,反射介导的活动增加和障碍物接触后的单步恢复.
- 自行再生的LG表现出延迟的恢复 (3步),改变的力调节,并转向近同度函数.
- 经过重新内化的鸟类采用了更的姿势.
结论:
- 自身感知反对于快速,精确的肌肉调整至关重要,在障碍谈判在行走.
- 肌肉功能和恢复策略在走路和跑步之间有很大的不同.
- 自重内化揭示了在自身感受受到损害时,保持稳定的独特运动控制策略.
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