Caffeine is a well-established ergogenic aid, with its performance-enhancing effects demonstrated across a wide variety of exercise modalities. Athletes tend to frequently consume caffeine as a performance enhancement method in training and competition. There are a number of methods available as a means of consuming caffeine around exercise, including caffeine anhydrous, sports drinks, caffeine carbohydrate gels, and gum. One popular method of caffeine ingestion in nonathletes is coffee, with some evidence suggesting it is also utilized by athletes. In this article, we discuss the research pertaining to the use of coffee as an ergogenic aid, exploring (a) whether caffeinated coffee is ergogenic, (b) whether dose-matched caffeinated coffee provides a performance benefit similar in magnitude to caffeine anhydrous, and (c) whether decaffeinated coffee consumption affects the ergogenic effects of a subsequent isolated caffeine dose. There is limited evidence that caffeinated coffee has the potential to offer ergogenic effects similar in magnitude to caffeine anhydrous; however, this requires further investigation. Coingestion of caffeine with decaffeinated coffee does not seem to limit the ergogenic effects of caffeine. Although caffeinated coffee is potentially ergogenic, its use as a preexercise caffeine ingestion method represents some practical hurdles to athletes, including the consumption of large volumes of liquid and difficulties in quantifying the exact caffeine dose, as differences in coffee type and brewing method may alter caffeine content. The use of caffeinated coffee around exercise has the potential to enhance performance, but athletes and coaches should be mindful of the practical limitations.

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咖啡是运动前咖啡因的有用来源吗？

咖啡因是一种行之有效的增肌助剂，其性能增强效果在各种运动方式中都得到了证明。运动员在训练和比赛中往往会经常食用咖啡因作为提高成绩的方法。有许多方法可以作为锻炼周围摄入咖啡因的方法，包括无水咖啡因、运动饮料、咖啡因碳水化合物凝胶和口香糖。非运动员摄入咖啡因的一种流行方法是咖啡，一些证据表明运动员也使用咖啡。在本文中，我们讨论了有关使用咖啡作为增效助剂的研究，探讨 (a) 含咖啡因的咖啡是否具有增效作用，(b) 剂量匹配的含咖啡因咖啡是否提供与无水咖啡因相似的性能益处，(c) 饮用不含咖啡因的咖啡是否会影响后续单独摄入咖啡因剂量的致力作用。有限的证据表明，含咖啡因的咖啡有可能提供与无水咖啡因相似的强效作用；然而，这需要进一步调查。咖啡因与不含咖啡因的咖啡的混合似乎并没有限制咖啡因的致力作用。尽管含咖啡因的咖啡具有潜在的机能作用，但将其用作运动前摄入咖啡因的方法对运动员来说存在一些实际障碍，包括消耗大量液体和难以量化确切的咖啡因剂量，因为咖啡类型和冲泡方法的差异可能会改变咖啡因内容。在锻炼期间使用含咖啡因的咖啡有可能提高表现，