PURPOSE: To test the hypothesis that elite rowers would possess a faster, more economic oxygen uptake response than club standard rowers. METHODS: Eight Olympic champion (ELITE) rowers were compared with a cohort of eight club standard (CLUB) rowers. Participants completed a progressive exercise test to exhaustion, repeated 6-min moderate and heavy square-wave transitions, and a maximal 2000-m ergometer time trial. RESULTS: The time constant (tau) of the primary component (PC) was faster for the ELITE group compared with CLUB for moderate-intensity (13.9 vs 19.4 s, P = 0.02) and heavy-intensity (18.7 vs 22.4 s, P = 0.005) exercise. ELITE rowers consumed less oxygen for moderate (14.2 vs 15.6 mL x min(-1) x W(-1); P = 0.009) and heavy (12.1 vs 13.7 mL x min(-1) x W(-1); P = 0.01) exercise. A greater absolute slow component was observed in the ELITE group (P = 0.009), but no differences were noted when the slow component was expressed relative to work rate performed (P = 0.14). Intergroup correlation with time trial performance speed was significant for tauPC during heavy-intensity exercise (r = -0.59, P = 0.02). CONCLUSIONS: Compared with CLUB rowers, the shorter time constant response and greater economy observed in ELITE rowers may suggest advantageous adjustment of oxidative processes from rest to work. Training status or performance level do not seem to be associated with a smaller slow component when comparing CLUB and ELITE oarsmen.
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机译：目的：为了检验以下假设：精英赛艇运动员比俱乐部标准赛艇运动员具有更快，更经济的氧气吸收反应。方法：将八名奥运会冠军（ELITE）赛艇运动员与八名俱乐部标准（CLUB）赛艇运动员进行了比较。参加者完成了一项关于疲劳的渐进运动测试，重复了6分钟的中度和重度方波过渡，并进行了最长2000米的测功时间试验。结果：中等强度（13.9 vs 19.4 s，P = 0.02）和重强度（18.7 vs 22.4 s，P =）时，ELITE组主要成分（PC）的时间常数（tau）快于CLUB。 0.005）运动。 ELITE划船者在中度（14.2 vs 15.6 mL x min（-1）x W（-1）x W（-1）; W（-1）x W（-1）x W（-1）; P（0.002））下消耗较少的氧气= 0.01）运动。在ELITE组中观察到了更大的绝对慢分量（P = 0.009），但是当表示慢分量相对于所执行的工作速率时，则没有差异（P = 0.14）。大强度运动期间，tauPC的组间相关性与计时试验的执行速度显着相关（r = -0.59，P = 0.02）。结论：与CLUB划船者相比，ELITE划船者观察到的更短的时间常数响应和更大的经济性可能表明从休息到工作的氧化过程的有利调整。比较CLUB和ELITE划桨手时，训练状态或性能水平似乎与较小的慢速组件无关。
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