REPRODUCIBILITY OF AN INCREMENTAL TREADMILL (V) over dotO(2)MAX TEST WITH GAS EXCHANGE ANALYSIS FOR RUNNERS

Autor(es)

Lourenco, Thiago Fernando ^[1] ; Barreto Martins, Luiz Eduardo ^[2] ; Tessutti, Lucas Samuel ^[1] ; Brenzikofer, Rene ^[3] ; Macedo, Denise Vaz ^[1]

Afiliação do(s) autor(es)

^[1] State Univ Campinas UNICAMP, Inst Biol, Dept Biochem, Lab Exercise Biochem LABEX, Campinas, SP - Brazil

^[2] State Univ Campinas UNICAMP, Fac Phys Educ FEF, Lab Instrumentat Physiol, Campinas, SP - Brazil

^[3] State Univ Campinas UNICAMP, Fac Phys Educ FEF, Lab Instrumentat Biomech LIB, Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF STRENGTH AND CONDITIONING RESEARCH; v. 25, n. 7, p. 1994-1999, JUL 2011.
• Citações Web of Science: 14

Resumo

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. (AU)

• Processo FAPESP: 03/09923-2 - Desenvolvimento de tecnologia desportiva através de uma ação multidisciplinar
• Beneficiário: Lauro Tatsuo Kubota
• Modalidade de apoio: Auxílio à Pesquisa - Programa PRONEX - Temático
• Processo FAPESP: 07/53135-0 - Correlação entre ponto de compensação respiratório e desempenho em corredores de rua
• Beneficiário: Thiago Fernando Lourenço
• Modalidade de apoio: Bolsas no Brasil - Mestrado