在步行终止过程中,以纹理对机械诱导的伸展反射兴奋度促进皮肤感应反
Kelly A Robb1, Lara A Green1, Jordan D Hyde1
1Department of Kinesiology and Physical Education, Faculty of Science, Wilfrid Laurier University, Waterloo, ON, Canada.
Journal of motor behavior
|March 6, 2025
概括
机械皮肤刺激可以调节行走终止期间的伸展反射 (SR). 纹理特别影响了小腿前部伸展反射,显示了针对性神经调节的潜力.
科学领域:
- 神经科学是一个神经科学.
- 生物力学 生物力学
- 发动机控制器的控制器
背景情况:
- 皮肤反对于步行终止期间反射肌肉激活至关重要.
- 以前的研究主要使用电刺激来诱导皮肤输入,限制了对机械刺激影响的理解.
- 机械皮肤输入对行走过程中伸展反射 (SR) 刺激能力的调节能力在很大程度上仍未被探索.
研究的目的:
- 为了研究机械皮肤输入对调节伸展反射 (SR) 在乱的步态终止过程中的影响.
- 为了比较不同皮肤刺激对SR参数的影响,如延迟,峰值振幅和总爆发振幅.
主要方法:
- 30名健康的年轻人参加了在倾斜平台上的行走试验.
- 意想不到的前置或后置平台倾斜扰乱了步态,在前 (TA) 或中侧胃骨 (MG) 中引起了短暂的延迟反射.
- 在不同的皮肤促进条件下,分析了拉伸反射反应的延迟,峰值振幅和总爆发振幅.
主要成果:
- 在拉伸的肌肉和皮肤促进之间发现了显著的相互作用,影响SR峰值和爆发幅度.
- 触觉纹理始终调节TA SR大小,但不是MG SR.
- 这些发现证实,皮肤 afferent 促进可以调节脊柱内部神经回路.
结论:
- 机械皮肤刺激,特别是纹理,可以调节脊柱运动神经元在步行终止期间的刺激性.
- 纹理对TA与MG的差异效应表明肌肉特异性调制.
- 参与者对纹理反应的变化强调了在研究皮肤促进效应时需要个性化的方法.
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