Suplementação de cafeína como recurso ergogênico

Abstract

This study aims to evaluate how evidences about caffeine supplementation during exercise practice. Based on current evidence, apparently caffeine would increase maximum strength, muscular endurance. In addition, the force can benefit from supplementation, although this effect, to some extent, is dependent on the supplemented dose and externals factors. A reduction in perceived exertion (RPE) contributed to the performance-enhancing effects of supplementation, as some studies have observed a decrease in RPE along with improved performance after caffeine supplementation. However, for the perception of pain, the outcomes were not proven results. Some studies induced that caffeine did not affect the muscle damage that was induced by exercise, but could reduce the perception of late-onset muscle pain induced by resistance training, thus needing to be further explored. Doses in the range of 3-9mg/kg can lead to acute increases in blood pressure (mostly systolic) and therefore caution is needed about supplementation. Such dosage also seems to be adequate when looking for some ergogenic effect, when consumed an average of 1 hour before exercise. However, at higher doses, side effects are noticed more frequently.