对比咖啡因输送形式对交叉训练表现的急性影响:一个随机的安慰剂控制交叉试验.
Salvador Vargas-Molina1,2, Diego A Bonilla2,3, Manuel García-Sillero1
1Department of Human Physiology, Physical Education and Sport, Faculty of Medicine, University of Malaga, 29010 Malaga, Spain.
不同的咖啡因 (CAF) 形式并没有显著改变CrossFit参与者的内部负荷或炼性能. 然而,咖啡因口腔冲洗 (CMR) 显示了对反运动跳跃 (CMJ) 性能的潜在改善.
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
- 营养补充剂 营养补充剂
背景情况:
- 咖啡因是体育运动中广泛使用的 ergogenic 辅助剂.
- 对于像CrossFit这样的特定训练模式来说,最佳的咖啡因给药方法尚未得到充分确立.
- 对运动员来说,研究不同的咖啡因输送形式至关重要.
研究的目的:
- 为了比较各种咖啡因管理形式 (囊,口香糖,口水) 对CrossFit表现的影响.
- 评估对反运动跳跃 (CMJ) 的影响,感知劳力的速度 (RPE),重复和心率 (HR).
- 为了确定特定的咖啡因输送方法是否提供优越的益处.
主要方法:
- 随机化,安慰剂控制,交叉研究与14名经验丰富的男性CrossFit参与者.
- 咖啡因通过囊 (CC),口香糖 (CCG) 和口腔冲洗 (CMR) 或安慰剂 (PG) 在运动前30分钟内服用.
- 参与者执行了"辛迪"的CrossFit协议;CMJ测量了前/后,RPE,HR,并记录了训练后的重复.
- 每个条件之间的7天的洗期确保了测量的独立性.
主要成果:
- 对于RPE,HRmax,HRmean或总重复次数,没有观察到咖啡因形式之间的显著差异.
- 与基线相比,咖啡因口腔冲洗 (CMR) 显示了CMJ性能的潜在显著改善.
- 推断分析表明,咖啡因给药方法对整体结果没有显著的主要影响.
结论:
- 咖啡因的施用形式并没有持续地提高CrossFit的内部负载或一般性能指标.
- 咖啡因口腔冲洗 (CMR) 在训练有素的个体中可能会为像CMJ一样的爆炸力提供特定的好处.
- 需要进一步研究以阐明不同咖啡因输送系统的精确机制和最佳使用.
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