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前肢运动有助于后肢在猫的运动过程中皮肤反射
Jonathan Harnie1, Rasha Al Arab1, Stephen Mari1
1Department of Pharmacology-Physiology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Centre de Recherche du CHUS, Sherbrooke, Quebec, Canada.
Journal of neurophysiology
|May 1, 2024
概括
前肢运动会影响后肢运动中的反射. 移除前肢运动会改变反射反应,这表明脊上输入对于协调四肢运动至关重要.
科学领域:
- 神经科学是一个神经科学.
- 运动生物力学 运动生物力学
- 发动机控制器的控制器
背景情况:
- 四足运动的协调涉及脊柱和脊柱上回路之间的复杂相互作用.
- 体感反在运动期间调节四肢运动中起着至关重要的作用.
研究的目的:
- 为了研究前肢运动如何调节后肢运动期间的皮肤反射.
- 确定脊上输入在协调前肢和后肢反射中的作用.
主要方法:
- 在四足和只用后肢运动期间,在完整的猫身上刺激表面神经.
- 在完整和脊椎切割的猫之间,后肢肌肉中的皮肤反射的比较.
- 分析斜侧和斜侧后肢肌肉中的短时间和长时间潜伏反射反应.
主要成果:
- 在完整的猫身上,短延迟反射在四足和后肢单独运动期间同样受到调节.
- 后肢伸展肌肉中延迟时间较长的反射反应在后肢单独运动和脊髓切割后减少或消除.
- 前肢运动影响后肢皮肤反射的发生和调节深度.
结论:
- 前肢运动的缺失抑制了脊上输入,这有助于延长后肢反射反应的延迟时间.
- 前肢运动对于在运动过程中完全调节后肢皮肤反射至关重要.
- 这项研究阐明了前肢活动对中枢神经系统控制四肢间协调的贡献.
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