四周的实验加上使用现场高铁低速的1周逐渐减少期,不会改变肌肉糖原蛋白含量
Danilo R Bertucci1, Carlos Dellavechia de Carvalho2, Pedro P M Scariot3
1Triângulo Mineiro Federal University (UFTM), Av. Frei Paulino, nº 30, Abadia, Uberaba, MG, Brazil.
European journal of applied physiology
|January 17, 2024
概括
活高铁低 (LHTL) 干预显著增加了训练腿的肌肉糖原. 这种升高在逐渐缩小的阶段之后仍然存在,增加了疲劳的时间.
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
- 高空训练 高空训练
背景情况:
- 肌肉糖原是耐力运动的重要能量来源.
- 优化肌肉糖原储存可以提高运动表现.
- 现场高铁低 (LHTL) 是一种高度训练策略,旨在改善生理适应.
研究的目的:
- 为了研究4周LHTL干预对肌肉糖原度的影响.
- 评估后续逐渐减少阶段对肌肉糖原水平的影响.
- 为了评估LHTL协议后耗尽时间的变化.
主要方法:
- 14名身体活跃的男性参与,分为控制 (CON) 和LHTL组.
- 在LHTL组训练了一条腿在缺氧 (TL_HYP),另一条腿在正常 (TL_NOR),与相应的对照 (CL_HYP,CL_NOR).
- 训练包括20-45分钟的单腿膝盖延伸,每天10小时暴露于normobaric缺氧 (~3000m) 或normoxia (~530m),然后是逐渐缩小.
主要成果:
- 肌肉糖原度在4周后在正常训练 (TL_NOR) 和缺氧训练 (TL_HYP) 腿上显著增加.
- 在逐渐减少阶段后,肌肉糖原水平的升高得到维持.
- 与基线相比,LHTL组的干预后和逐渐后的耗尽时间 (TTE) 显著增加.
结论:
- 4周的LHTL干预有效增加训练有素的腿部的肌肉糖原储量.
- 观察到的肌肉糖原的增加在逐渐缩小后持续.
- 简单地说,LHTL训练提高了耐力能力,如疲劳时间的改善所示.
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