Weltman A, Regan J D
Int J Sports Med. 1983 Aug;4(3):184-9. doi: 10.1055/s-2008-1026032.
The effect of an elevated blood lactate concentration on maximal constant load exercise performance (MCLE) was studied in nine males. Two experimental sessions followed a continuous VO2max test, each consisting of an initial work bout at approximately 110% VO2max, a 20 min recovery, and a second maximal performance test. Blood lactate concentrations reached approximately 10 mM following the initial work bout and were altered prior to the second bout by one of two recovery patterns: 1) active recovery (AR)--pedaling at 40% VO2max or 2) passive recovery (PR)--sitting quietly. Performance time, total pedal revolutions, metabolic parameters, and heart rate (HR) were measured during each work bout. Despite significant differences in blood lactate concentration, there were no differences in work output among the performance tests (either between conditions or from pre- to post-recovery); there was a low correlation (r = 0.08) between pre-existing blood lactate concentration and work output on a subsequent maximal constant load exercise test. It was concluded that elevated blood lactate concentration does not affect maximal constant load exercise performance.
研究了九名男性血液乳酸浓度升高对最大恒定负荷运动表现（MCLE）的影响。在连续进行的最大摄氧量（VO2max）测试之后进行了两个实验阶段，每个阶段包括一次约为VO2max 110%的初始运动 bout、20分钟的恢复时间以及第二次最大表现测试。初始运动 bout 后血液乳酸浓度达到约10 mM，并在第二次 bout 之前通过以下两种恢复模式之一进行改变：1）主动恢复（AR）——以VO2max的40%进行蹬踏，或2）被动恢复（PR）——安静坐着。在每次运动 bout 期间测量运动时间、总蹬踏圈数、代谢参数和心率（HR）。尽管血液乳酸浓度存在显著差异，但在表现测试中（无论是不同条件之间还是恢复前后），运动输出没有差异；在之前的血液乳酸浓度与随后的最大恒定负荷运动测试中的运动输出之间存在低相关性（r = 0.08）。得出的结论是，血液乳酸浓度升高不会影响最大恒定负荷运动表现。
