睡眠不足增加了对称扭矩波动的规律性
João H Oliveira1,2, Paulo Santos1,2, Pedro Pezarat-Correia1,2
1Neuromuscular Research Lab, Faculty of Human Kinetics, University of Lisbon, Lisbon, Portugal.
Experimental brain research
|March 7, 2024
概括
睡眠不足会增加运动控制的规律性,影响扭矩波动. 这表明心理因素,而不仅仅是神经肌肉因素,影响了运动控制适应能力.
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:
- 扭矩信号波动反映了电机控制的适应性.
- 以前的研究将疲劳和衰老与扭矩规律的改变联系起来,但机制仍然不清楚.
- 关于中心或外围神经肌肉因素是否驱动这些变化存在争议.
研究的目的:
- 为了研究24小时睡眠剥夺对扭矩波动规律性的影响.
- 检查对峰值扭矩 (PT) 和扭矩发展速度 (RTD) 的影响.
- 探索感知努力和运动控制变化之间的关系.
主要方法:
- 13名年轻人接受了24小时监督的睡眠剥夺.
- 参与者进行了PT和RTD的最大自愿收缩 (MVC).
- 膝盖最大下延伸 (40% MVC) 用于通过样本透 (SampEn) 测量扭矩波动规律.
- 记录了感知力度 (RPE) 的速度.
主要成果:
- 没有观察到峰值扭矩 (PT) 或扭矩发展速度 (RTD) 的显著变化.
- 在睡眠剥夺后,扭矩波动的规律性显著增加 (SampEn减少) (p=0.044).
- 在睡眠剥夺后的RPE和SampEn相对变化之间发现了负相关性.
结论:
- 睡眠不足会改变运动控制,特别是增加扭矩波动的规律性.
- 这些变化不仅仅是由神经肌肉机制解释的,而且受到心理因素的影响,比如感知到的努力.
- 研究结果表明,心理状态间接影响神经驱动,影响运动控制适应能力.
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