Efecto agudo de un protocolo de Complex Training sobre la velocidad del lanzamiento de la granada en pentatletas militares

Introduction: Complex Training (CT) has been used to achieve Post-activation Potentiation (PAP) of physical capabilities and, in doing so, improve athletes' sports performance, however few studies have taking into account an activation with intensities in power zones. Objective: To determine the acute effect of Complex Training on bench press on grenade throwing velocity on military pentathletes. Method: Nineteen military pentathletes were part of the study. The study had a quasi-experimental intra-subject design. The Complex Training protocol consisted of 4 sets of 5 repetitions at 30% one Repetition Maximum (1RM) + 4 repetitions at 60% 1 RM + 3 grenade throws with a 15-second rest. The measured variables were: maximum velocity and grenade throw average through a Radar Gun, peak power and bench press average through a lineal encoder and post-effort Lactate [La]. For the statistical analysis repeated measures of ANOVA was used, and for the size of the effect an Eta-squared test was used. Results: The maximum velocity, average velocity and peak power did not show significant modifications between the control series and the 4 experimental series (p = 0.90; p = 0.94; p = 0.06). However, the average power of bench press and [La] showed a significant fall (p = 0.002: p = 0.001). Conclusions: The results of the study did not show effects in Complex Training on maximum and average velocity of grenade throwing in military pentathletes; hence, Post Activation Potentiation was not reached in the muscles involved in the projectile throwing. General and local fatigue was also observed during the application of the protocol. It is recommended to continue researching on activation loads, performing changes in the intensity and pauses of each load.