咖啡因,但不是白醇 (乙氨基),可以增强肌肉耐力,强度和功率
Bela Scapec1, Jozo Grgic2,3, Dorian Varovic1
1University of Zagreb Faculty of Kinesiology, Zagreb, Croatia.
Journal of the International Society of Sports Nutrition
|September 9, 2024
概括
咖啡因,但不是白醇,提高了运动员的肌肉耐力和力量,当单独或与白醇一起摄入时. 结合咖啡因和青提高了表现,而单独的青并没有提高运动能力.
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
- 药理学 药理学是指药理学的学科.
背景情况:
- 咖啡因是运动员广泛使用的 ergogenic 辅助剂,主要作用于腺受体,以减少感知到的劳累和疼痛.
- cetamol是另一种具有潜在增强性能特性的止痛药.
- 咖啡因和青对运动表现的各个方面的联合影响仍然未被充分研究.
研究的目的:
- 研究咖啡因,醇及其对肌肉耐力,强度,功率和无氧性能的组合对人体效应的影响.
- 为了比较隔离咖啡因,隔离青和联合咖啡因-青摄入量与安慰剂的性能结果.
- 为了确定帕拉塞他是否在经过抵抗训练的个体中具有任何人体生长潜力.
主要方法:
- 一项随机,交叉,双盲研究,涉及29名抵抗训练参与者.
- 参与者在测试前45分钟服用了安慰剂,咖啡因 (3毫克/公斤),青 (1500毫克) 或咖啡因+青.
- 使用长椅压力到失败,异动力膝盖延伸/屈曲,Wingate无氧试验和反运动跳跃 (CMJ) 来评估表现.
主要成果:
- 与安慰剂相比,单独摄入咖啡因显著增加了长压力中的重复 (p=0.005).
- 在异动力学评估中,咖啡因 (单独或与) 改善了力量 (扭矩) 和肌肉耐力 (总工作),特别是在较慢的速度 (p=0.002到0.027).
- 对于Wingate或CMJ测试,在条件之间没有观察到显著的性能差异.
结论:
- 咖啡因的消费,单独或与白醇结合,证明了对肌肉耐力,力量和功率的 ergogenic 益处.
- 单独摄入青并没有对评估的性能指标产生任何显著的改善.
- 这些研究结果表明,咖啡因是提高表现的首要驱动因素,这就质疑了单独考虑青的人体营养作用.
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