The influence of execution speed on blood lactate concentration in strength training protocol in bench press exercise

Gustavo Taques Marczynski, Luís Carlos Zattar Coelho, Leonardo Emmanuel de Medeiros Lima, Rodrigo Pereira da Silva, Dilmar Pinto Guedes Jr, Henrique Miguel, Raul Pacheco, Ricardo Corrêa Cunha

Resumo


The aim of this study was to analyze the influence of two velocities of execution relative to blood lactate concentration in strength training exercise until the momentary concentric failure. Fifteen men (29.1 ± 5.9 years), trained, participated in the experiment. The volunteers performed three bench press sessions, with an interval of 48 hours between them. At the first session, individuals determined loads through the 10-12 RMs test. In the following two sessions, three series with 90 seconds of interval were performed, in the second session slow execution speed (cadence 3030) and later in the third session fast speed (cadence 1010). For statistical analysis, the Student-T test was used for an independent sample study and considered the value of probability (p) ≤ 0.05 statistically significant. By comparing the number of repetitions and time under tension of the two runs, all series compared to the first presented significant reductions (p < 0.05). The total work volume was higher with the fast speed (p < 0.05). The study revealed that rapid velocities (cadence 1010) present a higher concentration of blood lactate when compared to slow runs (cadence 3030). The blood lactate concentration, in maximum repetitions, is affected by the speed of execution.

Keywords: resistance training, cadence, blood lactate.


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DOI: http://dx.doi.org/10.33233/rbfe.v19i1.3990

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