Influence of exercise mode and maximal lactate-steady-state concentration on the validity of OBLA to predict maximal lactate-steady-state in active individuals


Autoria(s): Figueira, Tiago R.; Caputo, Fabrizio; Pelarigo, Jailton G.; Denadai, Benedito S.
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

20/05/2014

20/05/2014

01/06/2008

Resumo

The aim of this study was to analyze the effects of exercise mode on the validity of onset of blood lactate accumulation (OBLA-3.5-mM fixed blood lactate concentration) to predict the work-rate at maximal lactate steady state (MLSSwork-rate). Eleven recreationally active mates (21.3 +/- 2.9 years, 72.8 +/- 6.7 kg, 1.78 +/- 0.1 m) performed randomly incremental tests to determine OBLA (stage duration of 3 min), and 2 to 4 constants work-rate exercise tests to directly determine maximal lactate steady state parameters on a cycle-ergometer and treadmill. For both exercise modes, the OBLA was significantly correlated to MLSSwork-rate, (cycling: r = 0.81 p = 0.002; running: r = 0.94, p < 0.001). OBLA (156.2 +/- 41.3 W) was lower than MLSSwork-rate (179.6 +/- 26.4 W) during cycling exercise (p = 0.007). However, for running exercise, there was no difference between OBLA (3.2 +/- 0.6 m s(-1)) and MLSSwork-rate (3.1 +/- 0.4 m s(-1)). The difference between OBLA and MLSSworkrate on the cycle-ergometer (r = 0.86; p < 0.001) and treadmill (r = 0.64; p = 0.048) was significantly related to the specific MLSS. We can conclude that the validity of OBLA on predicting MLSSwork-rate is dependent on exercise mode and that its disagreement is related to individual variations in MLSS. (C) 2007 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.

Formato

280-286

Identificador

http://dx.doi.org/10.1016/j.jsams.2007.02.016

Journal of Science and Medicine In Sport. Dickson: Sports Medicine Australia, v. 11, n. 3, p. 280-286, 2008.

1440-2440

http://hdl.handle.net/11449/41734

10.1016/j.jsams.2007.02.016

WOS:000256031700008

Idioma(s)

eng

Publicador

Sports Medicine Australia

Relação

Journal of Science and Medicine in Sport

Direitos

closedAccess

Palavras-Chave #constant work-rate #aerobic metabolism #cycling #running
Tipo

info:eu-repo/semantics/article