单独或联合使用肌酸和咖啡因对运动表现和认知功能的影响:一项随机,交叉,双盲,安慰剂控制的试验
Gina Mabrey1, Majid S Koozehchian1, Andrew T Newton1
1Department of Kinesiology, Jacksonville State University, Jacksonville, AL 36265, USA.
Nutrients
|March 28, 2024
概括
营养素酸盐和咖啡因结合,显著改善了运动员的认知功能,特别是在测量干扰的任务中. 运动表现没有显著变化,并且在这种补充剂组合下没有报告任何不良影响.
科学领域:
- 运动科学 运动科学 运动科学
- 营养科学 营养科学
- 认知神经科学 认知神经科学
背景情况:
- 肌酸补充剂对于提高运动表现很受欢迎.
- 咖啡因是一种众所周知的人体营养辅助剂和认知兴奋剂.
- 酸克reatine和咖啡因对认知功能和运动表现的联合作用需要进一步研究.
研究的目的:
- 研究单独或组合使用的酸克reatine和咖啡因对耐力训练运动员运动表现和认知功能的影响.
- 评估联合酸克reatine和咖啡因补充剂的安全性.
主要方法:
- 一个双盲,随机交叉试验,涉及12名抵抗训练的男性运动员.
- 在7天内补充肌酸酸 (每天5克),咖啡因 (每天400毫克) 或其组合.
- 评估抵抗运动的表现 (长椅压力,腿压力,Wingate无氧功率测试) 和认知功能 (Stroop Word-Color干扰测试).
- 包括通过血液样本进行安全分析.
主要成果:
- 同时摄入营养素酸盐和咖啡因显著增强了认知功能,特别是测量认知干扰的任务 (p = 0.04).
- 联合补充剂在提高认知表现方面比单独的咖啡因更有效.
- 在任何补充方案中都没有观察到短期运动表现的显著改善.
- 在为期七天的补充期内没有报告任何不良事件.
结论:
- 联合酸克reatine和咖啡因补充剂有效地提高了抵抗训练运动员的认知功能.
- 这种组合似乎是安全的短期使用.
- 虽然注意到认知效益,但在本研究中,运动表现没有显著影响.
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