O efeito agudo de protocolos de potenciação pós-ativação com diferentes cargas no desempenho de homens treinados
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2022-10-12
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Universidade Federal de Goiás
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Several resources are studied seeking to increase performance and adaptations related to Resistance Training (RT), such as the use of ergogenic food supplements and advanced training methods. Post Activation Potentiation (PPA) is a technique that has been quite evident in studies that show increased performance in power and strength sports. However, little is known about the effects of APP on RT. Objectives: To investigate the effects of two PPA protocols on the performance of men trained during three sets of barbell squats, verified by the number of maximum repetitions and total volume. To investigate the response of two PPA protocols on the perceived exertion and discomfort of trained men after each series of barbell squats, performed until momentary concentric failure. Methods: A randomized crossover trial was performed with 14 men recreationally trained in RT, who were subjected to three experimental situations. In two situations, two different PPA protocols were performed and in another condition, a traditional warm-up. One of these potentiation protocols was performed with high load (CA-PPA), corresponding to 90% of 1RM. In the other potentiation protocol, a low load (CA-PPA) corresponding to 45% of 1RM was used. The traditional heating situation, performed at 45% of 1RM, was implemented as a control (CON). All volunteers participated, in random order, in the three situations. The number of repetitions in each set, the total number of repetitions and the total training volume were compared. The subjective perception of exertion and discomfort were also evaluated at the end of each series in the three experimental conditions.
Results: There were no significant differences between the three conditions in relation to the total number of repetitions achieved (p = 0.17). When comparing each series, there were also no significant differences between each condition (p=0.17). Regarding the total volume, there were no differences when comparing the three conditions (p=0.15). When the total volume was compared for each series, there were also no differences between the three conditions (p = 0.1). Spearman's correlation also showed no association between the IFR and the difference in the number of repetitions between the CA-PPA and CON condition (ρ = - 0.15; p = 0.60), as well as for the difference in total volume between the two conditions (ρ = - 0.08; p = 0.78). Regarding PSD, there were no differences for the total score between the three experimental situations (p=0.27). Likewise, there were no differences for PSD when it was compared for each series between conditions (p=0.27). There were significant differences only for the subsequent grades (p<0.001), with the third grade having a higher PSD compared to the second and first, and the second grade having a higher score compared to the first. Finally, in relation to PSE, no difference was detected between the conditions (p = 0.92). Neither, when compared for each series, between the three conditions (p=0.06). Conclusion: There were no differences between the protocols of CA-PPA, CB-PPA, in the number of repetitions achieved, in the total volume, in PSD and PSE.
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SILVA, A. G. O efeito agudo de protocolos de potenciação pós-ativação com diferentes cargas no desempenho de homens treinados. 2022. 51 f. Dissertação (Mestrado em Educação Física) - Universidade Federal de Goiás, Goiânia, 2022.