Acute effects of combined and isolated caffeine and theanine supplementation on physical and cognitive performance in competitive athletes: a randomized, double-blind, placebo-controlled crossover study

IntroductionModern athletic performance is driven not only by physical capacity but also by rapid decision-making, attentional control, and visuomotor coordination. Evidence regarding the acute effects of caffeine (CAF), L-theanine (TEA), and their combination remains inconsistent, particularly with...

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Hlavní autoři:	Selin Yildirim Tuncer, Serhat Ozdenk, Ulas Can Yildirim, Dilara Erkan, Cengizhan Sari, Mehmet Can Gundem, Halit Sar, Busra Yilmaz, Izzet Karakulak, Firat Akca
Médium:	Artigo
Jazyk:	Inglês
Vydáno:	Frontiers Media S.A. 2026-01-01
Edice:	Frontiers in Nutrition
Témata:	caffeine cognitive performance co-supplementation isometric strength L-theanine
On-line přístup:	https://www.frontiersin.org/articles/10.3389/fnut.2025.1751673/full
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