Predicción del umbral anaeróbico en el ejercicio prensa de piernas a 45°

• Campos, Y.A.C. ^[2] ; Vianna, J.M. ^[3] ; Guimarães, M.P. ^[4] ; Souza, H.L.R. ^[4] ; Silva, G.P. ^[4] ; Domínguez, R. ^[1] ; Silva, S.F. ^[2] ; Novaes, J.S. ^[3] ; Reis, V.M. ^[5]
  1. [1] Universidad Internacional Isabel I de Castilla

     Universidad Internacional Isabel I de Castilla

     Burgos, España

     
  2. [2] Universidad de Lavras
  3. [3] Universidad Federal de Juiz de Fora
  4. [4] Universidad Federal de Lavras
  5. [5] Universidad de Trás-os-Montes y Alto Douro

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• Localización: Revista Internacional de Medicina y Ciencias de la Actividad Física y del Deporte, ISSN-e 1577-0354, Vol. 21, Nº. 81, 2021, págs. 83-97
• Idioma: español
• DOI: 10.15366/rimcafd2021.81.006
• Títulos paralelos:
  • Prediction of the anaerobic threshold in the leg press 45° exercise
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  • español

    Objetivos: Identificar el umbral anaeróbico (UAnaer) a través de las concentraciones de lactato sanguíneo (UANAERDMÁX) y mediante la percepción subjetiva del esfuerzo (RPE) por la metodología Dmáx (URPEDMÁX), y evaluar la correlación entre estos métodos. Métodos: Dieciséis corredores varones participaron del estudio. Los participantes realizaron un test incremental progresivo en el ejercicio de prensa de piernas a 45° registrando las concentraciones de lactato sanguíneo y RPE. Un test T-Student se realizó para comparar la intensidad de ejercicio en la que se encontró el UANAERDMÁX y URPEDMÁX y se aplicó un test Pearson para verificar la correlación y el coeficiente de correlación intraclase (ICC). Resultados: No se encontró diferencia significativa entre los métodos UANAERDMÁX y URPEDMÁX (p<0,05). Además, se observó una correlación fuerte (r=0,73) y un ICC alto (0,822) entre ellos. Conclusiones: Para la muestra estudiada fue posible determinar el UAnaer a través de la cinética de la RPE.

  • English

    Objective: Identify the anaerobic threshold (AnT) through blood lactate concentrations (LTDmax) and rating of perceived exertion (RPE) by the Dmax method (RPETDmax), and evaluate the correlation between these methods. Methods: Sixteen male long-distance runners participated in the study. Participants performed a gradual incremental test in leg press 45° exercise collecting blood lactate concentrations and perceived exertion. A student’s T-test was performed to compare the intensity of exercise in which the LTDmax and RPETDmax were found, and a Pearson test was applied to verify the correlation and intraclass correlation coefficient (ICC). Results: No significant difference was found between the LTDmax and RPETDmax (p<0.05). In addition, a strong correlation (r=0.73) and high ICC (0.822) were observed between them. Conclusions: For the sample studied, it was possible to determine the AnT through the kinetics of RPE.

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