Department of Paediatric and Adolescent Surgery, Medical University of Graz, Auenbruggerplatz 34, 8036, Graz, Austria.
Institute for Medical Informatics, Statistics and Documentation, Medical University of Graz, Graz, Austria.
Eur J Appl Physiol. 2021 Jun;121(6):1783-1794. doi: 10.1007/s00421-021-04601-y. Epub 2021 Mar 12.
To compare performance data of adolescents collected with five different bicycle spiroergometry protocols and to assess the necessity for establishing standard values for each protocol.
One-hundred-twenty adolescents completed two bicycle spiroergometries within 14 days. One of the two tests was performed based on our institutional weight-adapted protocol (P0). The other test was performed based on one out of four exercise protocols widely used for children and adolescents (P1, 2, 3 or 4) with 30 persons each. The two tests were performed in a random order. Routine parameters of cardiopulmonary exercise tests (CPET) such as VOpeak, maximum power, O pulse, OUES, VE/VCO slope as well as ventilatory and lactate thresholds were investigated. Agreement between protocols was evaluated by Bland-Altman analysis, coefficients of variation (CV) and intra-class correlation coefficients (ICC).
None of the CPET parameters were significantly different between P0 and P1, 2, 3 or 4. For most of the parameters, low biases between P0 and P1-P4 were found and 95% confidence intervalls were narrow. CV and ICC values largely corresponded to well-defined analytical goals (CV < 10% and ICC > 0.9). Only maximal power (Pmax) showed differences in size and drift of the bias depending on the length of the step duration of the protocols.
Comparability between examination protocols has been shown for CPET parameters independent on step duration. Protocol-dependent standard values do not appear to be necessary. Only Pmax is dependent on the step duration, but in most cases, this has no significant influence on the fitness assessment.
比较使用五种不同自行车测功仪协议收集的青少年的性能数据，并评估为每个协议建立标准值的必要性。
120 名青少年在 14 天内完成了两次自行车测功仪测试。其中一项测试是基于我们机构的体重适应协议（P0）进行的。另一项测试是基于广泛用于儿童和青少年的四项运动协议之一（P1、2、3 或 4）进行的，每个协议有 30 人参加。这两项测试是随机进行的。研究了心肺运动测试（CPET）的常规参数，如 VOpeak、最大功率、O 脉冲、OUES、VE/VCO 斜率以及通气和乳酸阈值。通过 Bland-Altman 分析、变异系数（CV）和组内相关系数（ICC）评估协议之间的一致性。
P0 与 P1、2、3 或 4 之间的 CPET 参数均无显著差异。对于大多数参数，P0 与 P1-P4 之间存在低偏差，95%置信区间较窄。CV 和 ICC 值在很大程度上符合明确的分析目标（CV<10%和 ICC>0.9）。只有最大功率（Pmax）显示出大小和偏差漂移的差异，具体取决于协议的步长持续时间。
CPET 参数的检查协议之间具有可比性，与步长持续时间无关。似乎不需要依赖协议的标准值。只有 Pmax 取决于步长持续时间，但在大多数情况下，这对体能评估没有显著影响。
