Ergogenic effects of caffeine supplementation in relation to muscle force increase: an integrating review

Abstract

The present research has as objective to verify the possible ergogenic effect from caffeine supplementation in relation to the muscle strength increase and boosting the performance.The methodology used was the explained integrative review, which allows the idea synthesis  and knowledge from each author by a bibliographic review. The instruments used were a compilation of 17 articles, that attended the research criteria, between 2006 and 2015. The terms used for the search were the following: caffeine, strength, ergogenic effect, in the indexers data base: Scielo, Bireme e academic Google. The study process was done by the collect of information based from secondary sources, related to the knowledge of the authors about the subject e its arguments. The inclusion criteria for the articles were: year, coherence with the research subject, caffeine use in tests of muscle strength and fatigue. It can be affirmed that the caffeine has central actions and peripheral in the body, which can interfere on the performance by the decrease of the fatigue, optimization of the muscle contraction, lesser perception of the effort, and, increase of the lipolysis.