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Relationship between plasma lactate parameters and muscle characteristics in female cyclists

Bishop, David, Jenkins, David G, McEniery, Michael and Carey, Michael F (2000) Relationship between plasma lactate parameters and muscle characteristics in female cyclists. Medicine and Science in Sports and Exercise , 32 (6). pp. 1088-1093. ISSN 0195-9131 (print) 1530-0315 (online)

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Abstract

Purpose: In a previous study, we showed that when six different plasma lactate parameters (LPs) were compared, the LP determined by the Dmax method was the best predictor of 1-h cycling performance in women. The present study extended these findings to determine whether or not the relationship between the following six LPs and endurance performance could be explained by their relationship with muscle fiber characteristics: 1) lactate threshold (LT; the power output at which plasma lactate concentration begins to increase above the resting level during an incremental exercise test), 2) LT1 (the power output at which plasma lactate increases by 1 mmol·L-1 or more), 3) LTD (the lactate threshold calculated by the Dmax method), 4) LTMOD (the lactate threshold calculated by a modified Dmax method), 5) L4 (the power output at which plasma lactate reaches a concentration of 4 mmol·L-1), and 6) LTLOG (the power output at which plasma lactate concentration begins to increase when the log([La-]) is plotted against the log(power output)).

Item Type: Article
Uncontrolled Keywords: peak O2, lactate threshold, Dmax, fiber composition, fiber, area, fiber diameter, 2-oxoglutarate dehydrogenase, PFK
Subjects: FOR Classification > 1106 Human Movement and Sports Science
Faculty/School/Research Centre/Department > College of Sports and Exercise Science
Depositing User: VUIR
Date Deposited: 16 Jan 2014 04:58
Last Modified: 02 Dec 2014 22:37
URI: http://vuir.vu.edu.au/id/eprint/24269
DOI: https://doi.org/10.1097/00005768-200006000-00008
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Citations in Scopus: 52 - View on Scopus

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