Non-parametric tests were used seeking statistically describe and compare the two groups - caffeine and no caffeine (Mann-Whitney test), the two time points - before and after in each group (Wilcoxon signed-rank test) and study the statistical effect of caffeine consumption on the other variables (Jonckheere-Terpstra test). It was used a confidence interval of 95%.The spreadsheet MS-Excel was used in your version of MS-Office 2013, for the organization of data, and IBM SPSS (International Business Machines - Statistical Package for Social Sciences), in its version 23.0, to obtain the results.