Fredriksen P M, Ingjer F, Nystad W, Thaulow E
Pediatric Heart Section, Rikshospitalet, National Hospital, University of Oslo, Norway.
Scand J Med Sci Sports. 1998 Aug;8(4):203-7. doi: 10.1111/j.1600-0838.1998.tb00193.x.
Fifty-eight children and adolescents of both sexes, aged 8-16, were tested on a treadmill using two different protocols. The well-known Bruce-protocol has the disadvantages of steep incline and large increments at each step. A new protocol (Oslo-protocol) with less incline and smaller increments was compared to the Bruce-protocol. The results from the two protocols showed no differences with regard to peak oxygen uptake (VO2peak) or peak heart rate (HRpeak). However, the respiratory exchange ratio (R) and blood lactate concentration [La-] showed higher values when the Bruce-protocol was used. The study also indicated that the often used criteria of HRpeak, R and achievement of a plateau in VO2 to estimate VO2peak, were not reliable indicators in either protocol. When time to exhaustion was used as an estimation of aerobic endurance level, the Oslo-protocol discriminated better than the Bruce-protocol. As a conclusion, the results indicate that none of the criteria may be used as a reliable indicator of having achieved VO2peak. An experienced testleader may be essential to define when VO2peak has been reached in children. On the basis of the results from the current study, the Oslo-protocol seems suitable as a test-protocol when testing children and adolescents for VO2peak.
对58名8至16岁的儿童和青少年进行了跑步机测试，采用了两种不同的方案。著名的布鲁斯方案存在坡度陡峭且每步增量大的缺点。将一种坡度较小且增量较小的新方案（奥斯陆方案）与布鲁斯方案进行了比较。两种方案的结果在峰值摄氧量（VO2peak）或峰值心率（HRpeak）方面没有差异。然而，使用布鲁斯方案时，呼吸交换率（R）和血乳酸浓度[La-]显示出更高的值。该研究还表明，常用的HRpeak、R以及VO2达到平台期的标准，在任何一种方案中都不是可靠的VO2peak指标。当将力竭时间用作有氧耐力水平的估计指标时，奥斯陆方案比布鲁斯方案的区分度更好。总之，结果表明没有任何一个标准可以用作达到VO2peak的可靠指标。在儿童中，经验丰富的测试负责人对于确定何时达到VO2peak可能至关重要。根据当前研究的结果，在对儿童和青少年进行VO2peak测试时，奥斯陆方案似乎适合作为测试方案。
