Introduction. The warm-up is a set of progressive activities in intensity and specificity, prior to any physical practice, sport or competition, in order to have the organic, muscular, coordinative and psychophysical functions of the athlete for performance. Aim. To evaluate the effect of warming up on the power of the lower limbs, using the long jump test without impulse, in university students. Materials and methods. Descriptive, correlational and cross-sectional study. Height and body mass were measured with the protocols of the I.S.A.K manual (ISAK, 2010). The variable power of the lower limbs was evaluated with the long jump test without impulse, without and with warm-up. Results. 196 men with a mean age of 22.06 ± 2, and 71 women with a mean age of 21.23 ± 2.28 participated in the study. The results of the test with and without heating showed equal variances (p = 0.086) by the Levene test and were adjusted to a normal distribution (p = 0.120) by the Kolmogorov-Smirnov test. Discussion and Conclusions. A positive effect (p <0.01) of warming on the performance of the test participants was observed, both in men and women; warming regardless of the gender of the people tested.
