Human Performance Laboratory, UNESP, Rio Claro, SP, Brazil.
Appl Physiol Nutr Metab. 2012 Dec;37(6):1147-52. doi: 10.1139/h2012-105. Epub 2012 Oct 2.
The purpose of this study was to analyze the effect of recovery type (passive vs. active) during prolonged intermittent exercises on the blood lactate concentration (MLSS) and work rate (MLSS(wint)) at maximal lactate steady state. Nineteen male trained cyclists were divided into 2 groups for the determination of MLSS(wint) using passive (maximal oxygen uptake = 58.1 ± 3.5 mL·kg(-1)·min(-1); N = 9) or active recovery (maximal oxygen uptake = 60.3 ± 9.0 mL·kg(-1)·min(-1); N = 10). They performed the following tests, on different days, on a cycle ergometer: (i) incremental test until exhaustion to determine maximal oxygen uptake; (ii) 2 to 3 continuous submaximal constant work rate tests (CWRT) for the determination of the work rate at continuous maximal lactate steady state (MLSS(wcont)); and (iii) 2 to 3 intermittent submaximal CWRT (7 × 4 min and 1 × 2 min, with 2-min recovery) with either passive or active recovery for the determination of MLSS(wint). MLSS(wint) was significantly higher when compared with MLSS(wcont) for both passive recovery (294.7 ± 32.2 vs. 258.7 ± 24.5 W, respectively) and active recovery groups (300.5 ± 23.9 vs. 273.2 ± 21.5 W, respectively). The percentage increments in MLSS(wint) were similar between conditions (passive = 13% vs. active = 10%). MLSS (mmol·L(-1)) was not significantly different between MLSS(wcont) and MLSS(wint) for either passive recovery (4.50 ± 2.10 vs. 5.61 ± 1.78, respectively) and active recovery (4.06 ± 1.49 vs. 4.91 ± 1.91, respectively) conditions. We can conclude that using a work/rest ratio of 2:1, MLSS(wint) was ∼10%-13% higher than MLSS(wcont), irrespective of the recovery type performed during prolonged intermittent exercises.
本研究的目的是分析在长时间间歇性运动中恢复类型（被动与主动）对血乳酸浓度（MLSS）和最大乳酸稳态下的工作率（MLSS(wint)）的影响。19 名男性训练有素的自行车运动员被分为 2 组，使用被动（最大摄氧量=58.1±3.5 mL·kg(-1)·min(-1)；N=9）或主动恢复（最大摄氧量=60.3±9.0 mL·kg(-1)·min(-1)；N=10）来确定 MLSS(wint)。他们在不同的日子里在自行车测力计上进行了以下测试：（i）递增测试直到力竭，以确定最大摄氧量；（ii）2-3 个连续的次最大恒定工作率测试（CWRT），以确定连续最大乳酸稳态下的工作率（MLSS(wcont)）；（iii）2-3 个间歇性次最大 CWRT（7×4 分钟和 1×2 分钟，2 分钟恢复期），使用被动或主动恢复，以确定 MLSS(wint)。与被动恢复组（294.7±32.2 与 258.7±24.5 W，分别）和主动恢复组（300.5±23.9 与 273.2±21.5 W，分别）相比，MLSS(wint)明显更高。在两种条件下，MLSS(wint)的增加百分比相似（被动=13%，主动=10%）。对于被动恢复（4.50±2.10 与 5.61±1.78，分别）和主动恢复（4.06±1.49 与 4.91±1.91，分别），MLSS(wint)与 MLSS(wcont)之间的 MLSS（mmol·L(-1)）没有显著差异。我们可以得出结论，在长时间的间歇性运动中，使用 2:1 的工作/休息比，MLSS(wint)比 MLSS(wcont)高约 10%-13%，无论在恢复期间使用哪种类型。
