走路时的Soleus H-反射幅度调节在人类的跨脊柱刺激过程中仍然是生理上的
Abdullah M Sayed Ahmad1,2, Meghan Raphael2, Jessy Feng Han2
1Klab4Recovery Research Program, The City University of New York, New York, NY, USA.
Experimental brain research
|February 17, 2024
概括
走路时的跨脊柱刺激不会改变肌底H反射调节,但会增加膝盖延伸器的活动. 这表明跨脊柱刺激可能有助于在上部运动神经元病变的个体中恢复站立和行走.
科学领域:
- 神经科学是一个神经科学.
- 发动机控制器的控制器
- 康复技术 康复技术 康复技术
背景情况:
- 跨脊柱刺激 (TS) 正在探索如何增强运动功能.
- 了解它对运动期间脊柱反射的影响至关重要.
- 以前的研究还没有完全阐明TS对行走过程中的自感集成的影响.
研究的目的:
- 为了研究跨脊柱刺激 (TS) 在跑步机上步行时对单体H反射调节的影响.
- 为了确定TS是否影响运动期间的脊柱反射刺激能力和自身感知处理.
- 评估TS作为上部运动神经元病变患者的神经恢复策略的潜力.
主要方法:
- 在跑步机上行走时测量了Soleus H-反射和M-波反应.
- 跨脊柱刺激是在不同频率 (15,30,50赫兹) 和强度的胸脊柱区域进行的.
- 在整个步骤周期中分析了Soleus背景EMG活动和H-反射增益.
主要成果:
- 跨脊柱刺激并没有改变索莱斯H反射的相位依赖幅度调制.
- 在所有测试的TS条件下,H-反射增益和拦截保持不变.
- 在30和50 Hz TS时,膝盖伸展肌肉的运动EMG活动增加,但在肌肉中没有增加.
结论:
- 跨脊柱刺激 (15-50 Hz) 在行走过程中不会损害脊柱内自感输入的整合.
- TS增强了膝盖延伸器的运动活动,这表明对部和膝关节关节运动的潜在益处.
- 跨脊柱刺激可能是一个可行的神经恢复策略,以改善上部运动神经元病变的个人站立和行走.
相关概念视频
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Wave summation
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01:08Reflex Activity
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01:22Somatic Spinal Reflexes
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One of the most well-known somatic spinal reflexes is the stretch reflex, which is activated by the sudden stretching of a muscle. This reflex involves the activation of specialized sensory receptors called muscle spindles, which are located in the muscle tissue and detect changes in the length and speed of muscle contractions. When a muscle is suddenly...