Bishop, David ORCID: 0000-0002-6956-9188, 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)

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)).

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