伸展反射增益的目标定向调制在非主导的上肢减少
Frida Torell1, Sae Franklin2, David W Franklin2,3,4
1Physiology Section, Department of Integrative Medical Biology, Umeå University, Umeå, Sweden.
The European journal of neuroscience
|September 20, 2023
概括
主导的手臂表现出优越的运动控制,由于更精细的伸展反射调. 神经机制的这种差异,特别是融合运动控制,解释了主导和非主导四肢之间的性能不对称性.
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
- 人体生理学 人体生理学
背景情况:
- 主导和非主导臂之间存在运动行为不对称性.
- 这种灵巧差异的神经机制仍然不清楚.
- 以前的研究表明,主导手臂的目标定向伸展反射调节.
研究的目的:
- 研究在非主导手臂中达到准备的神经机制.
- 在主导和非主导四肢之间比较拉伸反射控制.
- 确定反射刚度在运动性能不对称性中的作用.
主要方法:
- 使用非主导的上肢进行延迟到达任务.
- 在不同的负载,延迟和目标方向下分析了拉伸反射反应.
- 结果与之前记录的主导臂反应进行了比较.
主要成果:
- 非主导手臂的伸展反射显示了负载,延迟和方向的一致影响.
- 短时间和长时间的延伸反射的目标定向调整在非主导肢体中明显较弱.
- 主导肢体表现出更复杂的反射刚性的控制.
结论:
- 运动性能不对称部分是由于主导手臂中优越的反射刚性控制.
- 在主导肢体中增强的融合运动控制可能有助于更好的肌肉受体调节.
- 研究结果表明,融合运动控制影响复杂的运动行为和轨迹控制,支持对复杂任务的优势手臂优势.
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