咖啡因和theacrine的组合可以在身体疲劳的条件下改善战术人员的认知表现
Blaine S Lints1, Adam T Harrison1, Sten O Stray-Gundersen1
1Department of Exercise Science, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA.
Journal of the International Society of Sports Nutrition
|July 22, 2025
概括
茶氨酸和咖啡因的组合可以提高认知和身体表现,而茶氨酸比单独的咖啡因提供了更多的好处. 这表明在苛刻的操作中减轻与压力相关的认知缺陷的潜在替代方案.
科学领域:
- 人类表现的人类表现.
- 营养神经科学 营养神经科学
- 运动生理学 运动生理学
背景情况:
- 在身体和认知压力下优化战斗人员的表现至关重要.
- 咖啡因被广泛使用,但可以引起诸如焦虑等有害的副作用.
- 茶氨酸是一种咖啡因替代品,具有更长的半衰期和更少的副作用,增强了认知性.
研究的目的:
- 评估咖啡因和茶补充剂对认知和身体表现的影响.
- 为了比较单独的咖啡因与咖啡因和theacrine组合的疗效.
- 为了确定theacrine能否作为咖啡因可行的替代品来缓解认知缺陷.
主要方法:
- 20名经过战术训练的参与者接受了认知测试和VO2max评估.
- 一项双盲,安慰剂控制的随机研究比较了300毫克咖啡因 (CAF),150毫克咖啡因+150毫克神氨酸 (CTC) 和安慰剂 (PLA).
- 补充剂服用前和后进行认知测试,然后进行高强度间歇运动,并在运动后进行进一步的测试.
主要成果:
- 与PLA相比,CAF和CTC都改善了认知和身体表现.
- 在双背任务中,CTC表现出卓越的准确性和减少的反应时间变化.
- 这两种补充剂都在Dynavision Go/NoGo任务中提高了反应时间,并且在运动后持续改善.
结论:
- 咖啡因和theacrine的组合可以提高认知和身体表现,而CTC显示出额外的好处.
- 这种组合可能为对咖啡因副作用敏感的个体提供非药物干预.
- 未来的研究应该探索更高的theacrine剂量,慢性补充剂和各种压力状况.
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