The purpose of this study was to use the meta‐analytic approach to examine the effects of
caffeine ingestion on ratings of perceived exertion (RPE). Twenty‐one studies with 109 …

Context: Carbohydrate (CHO) and caffeine (CAF) both improve endurance performance.
Purpose: To determine by systematic literature review coupled with meta-analysis whether …

Competitive athletes completed two studies of 2-h steady-state (SS) cycling at 70% peak O 2
uptake followed by 7 kJ/kg time trial (TT) with carbohydrate (CHO) intake before (2 g/kg) and …

This study used the meta-analytic approach to examine the effects of caffeine ingestion on
exercise testing. Forty double-blind studies with 76 effect sizes (ES) met the inclusion …

Purpose To evaluate the reliability of comparable TTE and TT treadmill running tests of high
and moderately high exercise intensity in endurance-trained male distance runners, and to …

Background Although caffeine supplementation improves performance, the ergogenic effect
is variable. The cause (s) of this variability are unknown. A (C/A) single nucleotide …

The study examined caffeine (5 mg/kg body weight) vs. placebo during anaerobic exercise.
Eighteen male athletes (24.1±5.8 yr; BMI 26.4±2.2 kg/m 2) completed a leg press, chest …

The aim of this study was to assess the effect of caffeine ingestion on 8 km run performance
using an ecologically valid test protocol. A randomized double-blind crossover study was …

Purpose To examine the effects of caffeine ingestion on physiological and perceptual
responses in mentally fatigued individuals. Methods Eight male physically active subjects …

Purpose The purpose of this study was to examine the effect of repeated doses of caffeine
on repeated exercise endurance. METHODS Nine male caffeine users performed exercise …