Background Energy drinks have become the most used caffeine-containing beverages in
the sport setting. The aim of this study was to determine the effects of two doses of a caffeine …

Introduction Although acute caffeine intake seems to improve muscular strength–power–
endurance performance, there is scarce evidence evaluating upper vs lower-body exercises …

Purpose Caffeine-containing energy drinks (EDs) are currently used as ergogenic aids to
improve physical performance in a wide variety of sport disciplines. However, the outcomes …

Multiple studies corroborate the ergogenic properties of caffeine (CAF) for endurance
performance, yet fewer investigations document the efficacy of acute caffeine intake for …

Background: Previously studies confirm ergogenic effects of caffeine (CAF); however there is
no available scientific data regarding the influence of acute CAF intake on power output in …

Consumption of energy drinks is common among athletes; however, there is a lack of
research on the efficacy of these beverages for short-duration, intense exercise. The …

The aim of this study was to investigate the effects of caffeine supplementation on peak
anaerobic power output (W max). Using a counterbalanced, randomised, double-blind …

Purpose: To explore the effects of 3 doses of caffeine on muscle strength and muscle
endurance. Methods: Twenty-eight resistance-trained men completed the testing sessions …

Background Caffeine is commonly used as an ergogenic aid. Literature about the effects of
caffeine ingestion on muscle strength and power is equivocal. The aim of this systematic …

Context: Not all athletic competitions lend themselves to supplementation during the actual
event, underscoring the importance of preexercise supplementation to extend endurance …