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dc.creatorCampos, Yuri-
dc.creatorVianna, Jeferson-
dc.creatorGuimarães, Miller-
dc.creatorDomínguez, Raúl-
dc.creatorSant' Ana, Leandro-
dc.creatorLeitão, Luís-
dc.creatorNovaes, Jefferson-
dc.creatorSilva, Sandro-
dc.creatorReis, Victor-
dc.date.accessioned2020-09-24T19:52:14Z-
dc.date.available2020-09-24T19:52:14Z-
dc.date.issued2020-07-
dc.identifier.citationCAMPOS, Y. et al. Comparison of methods to determine the lactate threshold during leg press exercise in long-distance runners. Motriz: Revista de Educação Física, Rio Claro, v. 26, n. 2, e10200207, 2020. DOI: http://dx.doi.org/10.1590/s1980-6574202000020207pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/43190-
dc.description.abstractAims: To determine lactate threshold (LT) by three different methods (visual inspection, algorithmic adjustment, and Dmax) during an incremental protocol performed in the leg press 45° and to evaluate correlation and agreement among these different methods. Methods: Twenty male long-distance runners participated in this study. Firstly, participants performed the dynamic force tests in one-repetition maximum (1RM). In the next session, completed an incremental protocol consisted of progressive stages of 1 min or 20 repetitions with increments of 10, 20, 25, 30, 35, and 40% 1RM. From 40% 1RM, increments corresponding to 10% 1RM were performed until a load in which the participants could not complete the 20 repetitions. A rest interval of 2 min was observed between each stage for blood collection and adjustment of the workloads for the next stage. Results: Our results showed no significant difference in relative load (% 1RM), good correlations, and high intraclass correlation coefficients (ICC) between algorithmic adjustment and Dmax (p = 0.680, r = 0.92; ICC = 0.959), algorithmic adjustment and visual inspection (p = 0.266, r = 0.91; ICC = 0.948), and Dmax and visual inspection (p = 1.000, r = 0.88; ICC = 0.940). In addition, the Bland-Altman plot and linear regression showed agreement between algorithmic adjustment and Dmax (r2 = 0.855), algorithmic adjustment and visual inspection (r2 = 0.834), and Dmax and visual inspection (r2 = 0.781). Conclusion: The good correlation and high agreement among three methods suggest their applicability to determine LT during an incremental protocol performed in the leg press 45°. However, the best agreement found between mathematical methods suggests better accuracy.pt_BR
dc.languageenpt_BR
dc.publisherUniversidade Estadual Paulista “Júlio de Mesquita Filho” - UNESPpt_BR
dc.rightsacesso abertopt_BR
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.sourceMotriz: Revista de Educação Físicapt_BR
dc.subjectResistance trainingpt_BR
dc.subjectAnaerobic thresholdpt_BR
dc.subjectVisual inspectionpt_BR
dc.subjectAlgorithmic adjustmentpt_BR
dc.subjectDmax methodpt_BR
dc.subjectCorredores de longa distânciapt_BR
dc.subjectTreinamento de resistênciapt_BR
dc.subjectLimiar anaeróbiopt_BR
dc.subjectInspeção visualpt_BR
dc.titleComparison of methods to determine the lactate threshold during leg press exercise in long-distance runnerspt_BR
dc.typeArtigopt_BR
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