咖啡因和二碳酸的急性同时摄入对肌肉耐力表现的影响
Juan Jesús Montalvo-Alonso1, César Munilla1, Laura Garriga-Alonso1
1Departamento de Ciencias Biomédicas, Área de Educación Física y Deportiva, Facultad de Medicina y Ciencias de la Salud, Universidad de Alcalá, 28801 Madrid, Spain.
Nutrients
|January 8, 2025
概括
单独的咖啡因 (CAF) 增强了肌肉耐力,增加了重复,速度和力量,在背部坐等炼中. 然而,将咖啡因与二碳酸 (NaHCO3) 结合在一起并没有产生这些性能益处.
科学领域:
- 运动生理学 运动生理学
- 运动营养 运动营养
- 人类表现的人类表现.
背景情况:
- 咖啡因和碳酸是众所周知的人体营养助剂,它们通过延迟疲劳来单独提高肌肉耐力.
- 咖啡因和碳酸对肌肉耐力的联合作用尚未得到广泛的研究.
研究的目的:
- 评估同时摄入咖啡因和二碳酸对肌肉耐力的急性影响.
- 为了评估这些影响在不同强度的运动 (负载) 在长椅压力和背运动.
主要方法:
- 这是一项双盲交叉研究,涉及27名受过娱乐训练的参与者.
- 测试了四种条件:二碳酸 + 咖啡因 (NaHCO3 + CAF),二碳酸 (NaHCO3),咖啡因 (CAF) 和安慰剂 (PLA).
- 参与者在长椅压力和背练习中执行了最大的重复,其一次重复最大 (1RM) 的65%和85%.
主要成果:
- 与安慰剂相比,咖啡因 (CAF) 显著增加了重复次数,平均速度 (Vmean) 和平均功率 (Wmean).
- 这些CAF的人体营养效应在背运动中特别明显,在65%和85%的1RM中.
- 当单独或与咖啡因结合摄入二碳酸 (NaHCO3) 时,没有观察到显著的人体效应.
结论:
- 单独补充咖啡因可以提高男性和女性参与者的肌肉耐力表现.
- 咖啡因对表现的好处包括增加重复,平均速度和功率输出.
- 与咖啡因同时摄入碳酸和咖啡因会抵消通常仅用咖啡因观察到的人体效应.
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