The influence of low power laser (LBP) regarding jumping performance in under-20 field soccer players

The jump is a resource increasingly used in sports, as it can influence the tactical and technical performance of the athlete, muscle performance in jumping is a new area of research in laser therapy.This study aims to compare the pre and post intervention effects of low power laser in the development of the jump in under-20 field soccer players, it is a randomized controlled clinical trial, in which 30 athletes were included divided into two groups, the first Laser Group (GL) performed the Jump test assessments and underwent lowpower laser intervention, while the second control group (CG) performed only the Jump test assessments.Data were collected using technical variations of the vertical jump on the jumping platform: number of jumps, height reached, initial speed of each jump, jump power and graphical representation of the data.In order to measure the power of the lower limbs.The intervention protocol took place over a period of 6 weeks and finally the analysis of the collected data.In the results, we can verify significant differences in the evaluation phase of the variable v(m/s) according to the Bartlett test, and for more in the averages in the laser group both in the evaluation period and in the reevaluation period, but there were no significant differences in variables ( p>0.05). it is concluded that the application of low power laser with the parameters used in this study were not fully effective in improving jump performance in under-20 field soccer players.