Abstract
Objective: Identify scientific evidence in the literature on the efficacy of creatine supplementation in improving the performance of physical activity practitioners. Methods: It was an integrative theoretical review, from 2015 to 2019, with access to the LILACS, PUBMED and SCIELO databases. The criteria for including a study in the review were manuscripts from scientific journals; qualifications B4 or greater; research conducted on humans; and exclusively oral creatine supplementation. Thus, six articles were selected to compose the present review work. Results: Four of the studies analyzed showed improvement in the physical performance of the activity practitioners. In two of these four, this improvement was statistically significant. In two other manuscripts, a significant increase in performance has not been determined. Final considerations: The theoretical review showed that creatine supplementation improves the performance of physical activity practitioners, considering that in these efforts of resistance and muscle strength are involved.