在自由节奏马拉松期间的大脑,代谢和RPE反应:初步研究
Florent Palacin1,2, Luc Poinsard1,2, Julien Mattei3
1EA 4445-Movement, Balance, Performance, and Health Laboratory, Université de Pau et des Pays de l'Adour, 65000 Tarbes, France.
概括
大脑是大脑的大脑.
科学领域:
- 运动生理学 运动生理学
- 神经科学是一个神经科学.
背景情况:
- 中央统治者理论认为,大脑调节运动表现.
- 了解大脑活动在马拉松等耐力赛中的作用至关重要.
研究的目的:
- 研究大脑活动对马拉松比赛表现的影响,特别是"撞墙".
- 为了将脑电图 (EEG) 数据与生理标记和马拉松期间感知到的劳动力相关联.
主要方法:
- 在整个比赛中,使用便携式代谢系统和无线EEG设备监测了一名马拉松选手.
- 收集的数据包括大脑活动,心肺呼吸反应,速度和感知劳动力 (RPE) 的评级.
主要成果:
- 在10-15公里之间观察到大脑活动的显著变化,先于RPE或心肺呼吸状况的明显变化.
- 大脑活动模式波动,在15公里后下降,在20-25公里之间短暂增加.
- 30公里后,速度下降,RPE升高,以及新陈代谢的转变 (通过呼吸交换比率表示) 与大脑活动减少相关,表明精神疲劳.
结论:
- 大脑活动的变化先于疲劳的生理标志物和马拉松跑步中的"撞墙".
- 训练策略应该包括对中枢神经系统信号的意识和反应,以改善节奏和耐力.
- 这项研究为耐力表现和疲劳的神经生理基础提供了新的见解.
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