Allen W K, Seals D R, Hurley B F, Ehsani A A, Hagberg J M
J Appl Physiol (1985). 1985 Apr;58(4):1281-4. doi: 10.1152/jappl.1985.58.4.1281.
Many well-trained elite older runners have performances comparable to those of much younger nonelite runners. We sought to determine whether the physiological determinants of endurance performance in two groups of such athletes were the same. Eight master athletes (age 56 +/- 5 yr) were matched on the basis of 10-km performance and training to younger runners (age 25 +/- 3 yr). The master athletes had a 9% lower maximum O2 uptake (VO2max) (P less than 0.05) than the matched young runners, despite the similarity in their performance. Running economy was not different between these groups. However, the master athletes attained a 2.5-mM blood lactate level during steady-state exercise at a higher percentage of their VO2max (P less than 0.05), although both groups attained this lactate level at the same running speed and VO2. Thus, despite having significantly lower VO2max values, the older athletes were able to perform as well as the younger runners because they were able to work closer to their VO2max for the duration of the race.
许多训练有素的年长精英跑者的表现与年轻得多的非精英跑者相当。我们试图确定两组此类运动员耐力表现的生理决定因素是否相同。根据10公里跑成绩和训练情况，挑选了8名年长运动员（年龄56±5岁）与年轻跑者（年龄25±3岁）进行匹配。尽管成绩相似，但年长运动员的最大摄氧量（VO2max）比匹配的年轻跑者低9%（P<0.05）。两组之间的跑步经济性没有差异。然而，年长运动员在稳态运动过程中达到2.5毫摩尔/升的血乳酸水平时，其VO2max的百分比更高（P<0.05），尽管两组在相同的跑步速度和VO2时达到了这个乳酸水平。因此，尽管年长运动员的VO2max值明显较低，但他们能够与年轻跑者表现得一样好，因为他们在比赛过程中能够更接近自己的VO2max进行运动。
