Efectos del programa de entrenamiento HIIT sobre la capacidad de repetir sprints (RSA) y la síntesis de lactato en sangre en los futbolistas de la selección masculina de la Universidad de Cuenca

Abstract

Soccer is a discontinuous sport that requires brief intermittent actions of high intensity and short duration. For which, it is necessary an adequate level of physical condition of the athletes, hence, the purpose of the present work is to determine the effects of the high intensity intervallic training program (HITT) on the capacity to repeat sprints (RSA) and the synthesis of lactate in blood in soccer players in the men's national team of the University of Cuenca. A quasi-experimental, correlational design was used. Two evaluations were carried out: an initial or pre-intervention and a final or post-intervention evaluation of the ability to repeat sprints, based on the RSA test proposed by Fitzsimons et al. (1993), in addition, basal and final lactate levels were evaluated jointly with the Lactate Plus portable analyzer. A HIIT training program with combined actions of 5 weeks duration with a total of 10 sessions was developed. The results showed statistically significant changes (p>0.05), obtaining the following values: mean RSA from 7.83 s to 7.46 s; best RSA from 7.38 s to 7.10 s; total RSA from 47.01 s to 44.76 s; fatigue index from 4.87% to 2.91%; basal lactate from 3.04 mmol/L to 1.66 mmol/L and final lactate from 14.77 mmol/L to 10.84 mmol/L. These values corroborate that HIIT training with combined actions improves the different variables of the study. Its application is recommended in amateur teams as it is a simple and replicable program.