Univ Lille Nord de France, 59000, Lille, France.
Eur J Appl Physiol. 2010 Mar;108(5):977-85. doi: 10.1007/s00421-009-1296-y. Epub 2009 Dec 4.
The aim of this article is to determine correspondences between three levels of continuous and intermittent exercise (CE and IE, respectively) in terms of steady-state oxygen uptake (VO(2SS)) and heart rate (HR) in children. Fourteen healthy children performed seven exercises on a treadmill: one graded test for the determination of maximal aerobic speed (MAS), three CE at 60, 70 and 80% of MAS (CE60, CE70 and CE80) and three IE (alternating 15 s of exercise intercepted with 15 s of passive recovery) at 90, 100 and 110% of MAS (IE90, IE100 and IE110). Mean VO(2SS) and mean HR were determined for both continuous and intermittent exercises. For comparison, three associations were designed: CE60 versus IE90, CE70 versus IE100 and CE80 versus IE110. No VO(2SS) difference was observed for CE60 versus IE90 and CE70 versus IE100 whereas a significant difference (P < 0.01) was found for CE80 versus IE110 (1.36 +/- 0.45 vs. 1.19 +/- 0.38 L min(-1), respectively). Significant linear regressions were found for the three CE versus IE associations for VO(2SS) (0.60 < r (2) < 0.99, P < 0.05). For the three associations, mean HR presented no significant difference. Only one significant relation was found for CE80 versus IE110 association (r(2) = 0.49, P < 0.05). Correspondences between CE and IE intensities are possible in terms of VO(2SS) whatever the level of exercise; even if for high intensities, VO(2SS) was higher during CE. These results demonstrated that it is possible to diversify the exercise modality while conserving exercise individualization.
本文旨在确定儿童连续和间断运动（CE 和 IE）三个水平之间在稳态摄氧量（VO₂SS）和心率（HR）方面的对应关系。14 名健康儿童在跑步机上进行了 7 项运动：一项最大有氧速度（MAS）的分级测试，3 项以 MAS 的 60%、70%和 80%进行的 CE（CE60、CE70 和 CE80），以及 3 项以 MAS 的 90%、100%和 110%进行的 IE（交替 15 秒运动和 15 秒被动恢复）（IE90、IE100 和 IE110）。确定了连续和间断运动的平均 VO₂SS 和平均 HR。为了比较，设计了三种关联：CE60 与 IE90、CE70 与 IE100 和 CE80 与 IE110。CE60 与 IE90 和 CE70 与 IE100 之间的 VO₂SS 没有差异，而 CE80 与 IE110 之间的 VO₂SS 差异显著（P < 0.01）（分别为 1.36 +/- 0.45 与 1.19 +/- 0.38 L min⁻¹）。对于这三种 CE 与 IE 的关联，VO₂SS 存在显著的线性回归（0.60 < r (2) < 0.99，P < 0.05）。对于这三种关联，平均 HR 没有显著差异。只有在 CE80 与 IE110 的关联中发现了一个显著的关系（r² = 0.49，P < 0.05）。在运动强度方面，CE 和 IE 之间的对应关系是可能的；即使在高强度运动中，CE 期间的 VO₂SS 也更高。这些结果表明，在保持个体化运动的同时，可以多样化运动方式。
