Åstrand Laboratory of Work Physiology, The Swedish School of Sports and Health Sciences, Stockholm, Sweden.
Department of Neurobiology, Care Sciences and Society, Division of Physiotherapy, Karolinska Institutet, Stockholm, Sweden.
Acta Paediatr. 2018 Jan;107(1):126-133. doi: 10.1111/apa.14080. Epub 2017 Oct 5.
This study assessed the validity and reliability of the Ekblom-Bak (EB) submaximal cycle test in adolescents and identified any sex- or maturity-related factors for prediction errors.
We recruited 50 healthy subjects through a public announcement in Stockholm, Sweden, in 2016. The 27 boys and 23 girls were aged 10-15 years and in Tanner stages I-IV. They performed an EB test and incremental treadmill running test for direct measurement of maximal oxygen uptake (VO max).
The estimation error of VO max was 0.09 L/min. The correlation (r) was 0.86, and the standard error of the estimate (SEE) was 0.29 L/min. The largest overestimation was seen in prepubertal boys (0.49 L/min). The best precision of the EB test was achieved when boys in Tanner stages I and II were re-calculated using the prediction equation developed for adult women. This yielded a mean difference of -0.05 L/min, r = 0.92 and SEE 0.23 L/min, in the entire sample. The prediction error was lowered in boys, but not girls, with increasing pubertal maturity.
The EB test was reasonably valid in adolescents, seemed to be related to sex and maturity status, and our findings support its use.
本研究评估了 Ekblom-Bak（EB）亚极量自行车测试在青少年中的有效性和可靠性，并确定了预测误差的任何与性别或成熟度相关的因素。
我们于 2016 年通过在瑞典斯德哥尔摩的公开通告招募了 50 名健康受试者。27 名男孩和 23 名女孩年龄在 10-15 岁，处于 Tanner Ⅰ-IV 期。他们进行了 EB 测试和递增跑步机跑步测试，以直接测量最大摄氧量（VO max）。
VO max 的估计误差为 0.09 L/min。相关性（r）为 0.86，估计值的标准误差（SEE）为 0.29 L/min。在青春期前的男孩中，最大的高估为 0.49 L/min。当使用为成年女性开发的预测方程重新计算 Tanner Ⅰ和 II 期的男孩时，EB 测试达到最佳精度。在整个样本中，平均差异为-0.05 L/min，r=0.92，SEE 为 0.23 L/min。预测误差随着青春期成熟度的增加而降低，但仅在男孩中降低，而在女孩中则没有。
EB 测试在青少年中具有相当的有效性，似乎与性别和成熟度有关，我们的研究结果支持其使用。
