Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/70939
Type: Artigo de periódico
Title: REPRODUCIBILITY OF AN INCREMENTAL TREADMILL (V) over dotO(2)MAX TEST WITH GAS EXCHANGE ANALYSIS FOR RUNNERS
Author: Lourenco, TF
Martins, LEB
Tessutti, LS
Brenzikofer, R
Macedo, DV
Abstract: Lourenco, TF, Martins, LEB, Tessutti, LS, Brenzikofer, R, and Vaz Macedo, D. Reproducibility of an incremental treadmill (V) over dotO(2)max test with gas exchange analysis for runners. J Strength Cond Res 25(7): 1994-1999, 2011-The evaluation of performance through the application of adequate physical tests during a sportive season may be a useful tool to evaluate training adaptations and determine training intensities. For runners, treadmill incremental (V) over dotO(2)max tests with gas exchange analysis have been widely used to determine maximal and submaximal parameters such as the ventilatory threshold (VT) and respiratory compensation point (RCP) running speed. However, these tests often differ in methodological characteristics (e. g., stage duration, grade, and speed increment size), and few studies have examined the reproducibility of their protocol. Therefore, the aim of this study was to verify the reproducibility and determine the running speeds related to maximal and submaximal parameters of a specific incremental maximum effort treadmill protocol for amateur runners. Eleven amateur male runners underwent 4 repetitions of the protocol (25-second stages, each increasing by 0.3 km.h(-1) in running speed while the treadmill grade remained fixed at 1%) after 3 minutes of warm-up at 8-8.5 km.h(-1). We found no significant differences in any of the analyzed parameters, including VT, RCP, and (V) over dotO(2)max during the 4 repetitions (p>0.05). Further, the results related to running speed showed high within-subject reproducibility (coefficient of variation < 5.2%). The typical error (TE) values for running speed related to VT (TE = 0.62 km.h(-1)), RCP (TE = 0.35 km.h(-1)), and (V) over dotO(2)max (TE = 0.43 km.h(-1)) indicated high sensitivity and reproducibility of this protocol. We conclude that this (V) over dotO(2)max protocol facilitates a clear determination of the running speeds related to VT, RCP, and (V) over dotO(2)max and has the potential to enable the evaluation of small training effects on maximal and submaximal parameters.
Subject: ventilatory threshold
respiratory compensation point
physical evaluation
maximal effort protocol
running
Country: EUA
Editor: Lippincott Williams & Wilkins
Rights: fechado
Identifier DOI: 10.1519/JSC.0b013e3181e501d6
Date Issue: 2011
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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