在陆地和诺莫巴里克间歇性缺氧的抵抗训练期后,力量和肌肉质量的发展
C Benavente1, P Padial1, B R Scott2,3
1Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain.
Pflugers Archiv : European journal of physiology
|June 25, 2024
概括
在normobaric缺氧下进行阻力训练可以提高最大的力量增益. 然而,无论是陆地性还是常态性缺氧,都没有与normoxia训练相比显著地促进肌肉生长.
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
- 环境生理学环境生理学
背景情况:
- 耐力训练 (RT) 期间的缺氧暴露正在探索潜在的人体效应.
- 了解不同类型的缺氧对RT适应的影响至关重要.
研究的目的:
- 研究RT在陆地缺氧 (HH) 和常态缺氧 (NH) 中对肌肉缩和最大强度的影响.
- 为了将这些效应与在normoxia (N) 中进行的RT进行比较.
主要方法:
- 33名力量训练的男性接受了为期8周的全身RT计划.
- 参与者被分配为正常氧 (N),陆地缺氧 (HH,2,320m) 或正常氧缺氧 (NH,FiO2=15.9%).
- 肌肉厚度,1RM背和各种血液标志物在训练前和训练后被评估.
主要成果:
- 所有组都改善了1RM,在NH组中观察到的最大收益.
- 肌肉厚度在N和HH条件下显著增加,但在NH条件下没有显著增加.
- 生物标志物表明N和HH的运动诱导压力更大,在HH (%活性mTOR) 和NH (IL-6,肌态素,miR-206) 中观察到特定的分子变化.
结论:
- 低氧条件下的RT与正常氧相比,似乎没有为肌肉生长提供额外的益处.
- 缺氧,特别是正常性缺氧,可能会增加最大的力量增长.
- 缺氧的类型显著影响了对抗力训练的生理适应.
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