Comparison of methods to determine the lactate threshold during leg press exercise in long-distance runners

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorCampos, Yuri-
Autor(es): dc.creatorVianna, Jeferson-
Autor(es): dc.creatorGuimarães, Miller-
Autor(es): dc.creatorDomínguez, Raúl-
Autor(es): dc.creatorSant' Ana, Leandro-
Autor(es): dc.creatorLeitão, Luís-
Autor(es): dc.creatorNovaes, Jefferson-
Autor(es): dc.creatorSilva, Sandro-
Autor(es): dc.creatorReis, Victor-
Data de aceite: dc.date.accessioned2026-02-09T11:22:37Z-
Data de disponibilização: dc.date.available2026-02-09T11:22:37Z-
Data de envio: dc.date.issued2020-09-24-
Data de envio: dc.date.issued2020-09-24-
Data de envio: dc.date.issued2020-07-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/43190-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1139584-
Descrição: dc.descriptionAims: 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.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Publicador: dc.publisherUniversidade Estadual Paulista “Júlio de Mesquita Filho” - UNESP-
Direitos: dc.rightsacesso aberto-
Direitos: dc.rightshttp://creativecommons.org/licenses/by/4.0/-
Direitos: dc.rightshttp://creativecommons.org/licenses/by/4.0/-
???dc.source???: dc.sourceMotriz: Revista de Educação Física-
Palavras-chave: dc.subjectResistance training-
Palavras-chave: dc.subjectAnaerobic threshold-
Palavras-chave: dc.subjectVisual inspection-
Palavras-chave: dc.subjectAlgorithmic adjustment-
Palavras-chave: dc.subjectDmax method-
Palavras-chave: dc.subjectCorredores de longa distância-
Palavras-chave: dc.subjectTreinamento de resistência-
Palavras-chave: dc.subjectLimiar anaeróbio-
Palavras-chave: dc.subjectInspeção visual-
Título: dc.titleComparison of methods to determine the lactate threshold during leg press exercise in long-distance runners-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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