作为一种新型人体营养辅助剂的theacrine:对独木舟冲刺表现的影响
Pavle Jovanov1,2, Milan Vraneš2,3, Otto Barak4
1Institute of Food Technology in Novi Sad, University of Novi Sad, Novi Sad, Serbia.
Journal of the International Society of Sports Nutrition
|November 30, 2025
概括
咖啡因显著提高了精英独木舟运动员的表现,改善了冲刺时间和无氧功率. 单独的theacrine提供了有限的益处,但将其与咖啡因结合可能会提供补充的 ergogenic 效果.
科学领域:
- 运动科学 运动科学 运动科学
- 运动生理学 运动生理学
- 营养补充 营养补充
背景情况:
- 咖啡因是高强度运动中广泛使用的人体工程学辅助剂.
- 咖啡因的潜在副作用包括心血管压力和耐受性.
- 类似的化合物theacrine可能会带来更少副作用的好处.
研究的目的:
- 为了评估theacrine,咖啡因及其组合对表现和生理反应的急性影响.
- 在精英独木舟冲刺运动员中,比较theacrine与咖啡因的 ergogenic 潜力.
- 为了研究茶和咖啡因对运动表现的联合作用.
主要方法:
- 一个随机,双盲,安慰剂控制的交叉试验,涉及20名精英男性独木舟冲刺运动员.
- 参与者在四个条件下完成了500米的计时试验和30秒的Wingate无氧试验:安慰剂,咖啡因,神氨酸和咖啡因-神氨酸组合.
- 测量包括比赛时间,功率输出,肌肉氧和 (SmO2),总血红蛋白 (THb) 和最大累积氧缺 (MAOD).
主要成果:
- 咖啡因显著改善了500米计时赛和温格特测试的表现.
- 与安慰剂相比,咖啡因-神氨酸组合显示出较小但显著的性能改善.
- 单独使用theacrine并没有产生统计学上显著的性能提升;任何条件都没有显著地改变生理反应.
结论:
- 咖啡因是冲刺划的强有力的人体工程学辅助剂,增强了机械输出.
- 单独的theacrine具有有限的 ergogenic 效果,但可能会补充咖啡因的好处.
- 研究结果支持精英运动员使用有针对性的补充策略.
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