visits conducted with a 24h difference.
10 participants used caffeine; 10 participants placebo
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Double-Blind, Counterbalanced, Placebo- Controlled Study
26 Healthy participants (mean age 21.38; 8 males, 18 females) 5 participants excluded
37.5mg/ 75mg/ 150mg/ 300mg/ guarana capsules
Behavioral and Cognitive effects of Guarana supplementation
1 training session and 5 study days
Each participant was his own control
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Double-Blind, Counterbalanced, Placebo- Controlled Study
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