Background The test–retest reliability of the one-repetition maximum (1RM) test varies
across different studies. Given the inconsistent findings, it is unclear what the true reliability …

Objective To systematically review, summarise and appraise findings of published meta-
analyses that examined the effects of caffeine on exercise performance. Design Umbrella …

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 …

Following critical evaluation of the available literature to date, The International Society of
Sports Nutrition (ISSN) position regarding caffeine intake is as follows: Supplementation with …

This paper aims to critically evaluate and thoroughly discuss the evidence on the topic of
caffeine supplementation when performing resistance exercise, as well as provide practical …

Objective The aim was to quantify the proportion of the literature on caffeine
supplementation that reports habitual caffeine consumption, and determine the influence of …

The aim of this investigation was to perform a systematic review and meta-analysis to
determine the efficacy of the acute ingestion of caffeine (from 3 to 6 mg/kg) to increase …

The positive effects of caffeine ingestion on aerobic performance are well-established;
however, recent findings are suggesting that caffeine ingestion might also enhance …

Soccer is a complex team sport and success in this discipline depends on different factors
such as physical fitness, player technique and team tactics, among others. In the last few …

Caffeine is a well-established ergogenic aid, demonstrated to enhance performance across
a wide range of capacities through a variety of mechanisms. As such, it is frequently used by …