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碳水化合物和盐口服刺激对中枢疲劳的作用

Tan S Han¹, Khong T Keen¹, Victor S Selvanayagam¹

¹Faculty of Sports and Exercise Science, Universiti Malaya, Kuala Lumpur, Malaysia.

Journal of sports sciences

|August 5, 2025

概括

用碳水化合物或盐溶液冲洗口腔可以通过维持肌肉活动和中央动力来提高运动表现. 这项研究表明,盐口水冲洗可以减少神经肌肉疲劳,类似于碳水化合物冲洗.

科学领域:

运动生理学运动生理学
运动科学运动科学运动科学
神经科学是一个神经科学.

背景情况:

已知含有碳水化合物 (CHO) 或盐溶液的口水 (MR) 可以改善最大自愿收缩 (MVC).
这些性能提升的核心机制,特别是对自愿激活 (VA) 和中央激活比率 (CAR) 的影响,仍然不清楚.

研究的目的:

为了研究CHO和盐口水在长时间骑自行车运动期间和之后对中央驱动力的神经生理测量效应.
为了确定这些口水是否会影响自愿激活 (VA) 和中央激活比率 (CAR).

主要方法:

一个随机的,交叉研究设计与19名男性参与者被采用.
参与者进行了30分钟的自行车试验,用6.4%的马尔托德素 (CHO),6.4%的盐或安慰剂 (PLA) 溶液冲洗.
包括VA,EMG和CAR在内的神经生理测量在MVC期间和运动前后持续的MVC (sMVC) 进行了评估.

主要成果:

与安慰剂相比,CHO和盐口水都显著改善了MVC和sMVC.
在所有神经生理学测量中,观察到显著的群体和时间相互作用,表明CHO和盐冲洗保留了肌肉活动和中央驱动.
盐口水冲洗在通过中央机制减轻神经肌肉疲劳方面表现出类似于CHO冲洗的效果.

结论:

碳水化合物和盐口水可以帮助维持长时间炼期间的肌肉收缩,通过保持中央驱动和肌肉活动.
这项研究提供了第一个证据,即盐口水冲洗可以通过中央通道减轻神经肌肉疲劳,与CHO冲洗相似.
建议使用诸如机器唤起的潜能等措施进行进一步的研究,以充分阐明盐口水的中心参与.

关键词:

同位数收缩的收缩方式嘴,中央激活口腔冲洗冲洗口腔神经生理学神经生理学

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