Ramos-Álvarez Juan José, Lorenzo-Capellá Irma, Calderón-Montero Francisco Javier
School of Sports Medicine, Madrid Complutense University, Madrid, Spain.
Faculty of Education and Health, Camilo José Cela University, Madrid, Spain.
Front Physiol. 2020 Feb 7;11:19. doi: 10.3389/fphys.2020.00019. eCollection 2020.
The use of automated gas exchange analysis systems in exercise studies is common throughout the industrialized world and are frequently used in sports medicine laboratories for the measurement of maximal oxygen uptake (VO), as an integrative parameter that allows the physical condition to be assessed, in spite of its limitations. Actually, the fundamental principles behind the measurement of respiratory gas exchange (RGE) have not changed for a century. It was used a manual Douglas bag method together with separate chemical analyses. The need for faster and more efficient techniques, has conditioned the traditional procedures and determined the emergence of automated systems. However, the validity and reliability of all these different systems is not well known. The common features associates with these systems, also have disadvantages that must be evaluated at the time of the acquisition of an automated equipment: (1) regular quality control checks, which entails other added economic costs, (2) the validity and reliability of the results, which it is necessary to verify, and (3) the user does not know the equations that determine the values of oxygen consumption and carbon dioxide production. This work aims to clarify the disadvantages of these automated systems. At maximum intensities, the variation of VO or VO can be very significant in athletes and even more relevant in sick people undergoing a training program. Therefore, considerable care is needed when comparing RGE data with automated systems.
Actually, stress tests are more conveniently performed with automated systems. It is necessary to examine the validity and reliability of automated respiratory gas exchange systems. The algorithms incorporated in the software, apart from being a "mystery," show differences with respect to the data provided.
在运动研究中使用自动气体交换分析系统在整个工业化世界都很常见，并且经常在运动医学实验室中用于测量最大摄氧量（VO），作为一个综合参数来评估身体状况，尽管它有局限性。实际上，呼吸气体交换（RGE）测量背后的基本原理一个世纪以来都没有改变。过去使用手动道格拉斯袋法并结合单独的化学分析。对更快、更高效技术的需求，改变了传统程序并促使自动系统的出现。然而，所有这些不同系统的有效性和可靠性并不为人所知。与这些系统相关的共同特征也有缺点，在购置自动设备时必须加以评估：（1）定期质量控制检查，这会带来额外的经济成本，（2）结果的有效性和可靠性，需要进行验证，（3）用户不知道确定耗氧量和二氧化碳产生量值的方程。这项工作旨在阐明这些自动系统的缺点。在最大强度时，VO或VO的变化在运动员中可能非常显著，在接受训练计划的病人中甚至更明显。因此，在将RGE数据与自动系统进行比较时需要格外小心。
实际上，使用自动系统进行压力测试更方便。有必要检查自动呼吸气体交换系统的有效性和可靠性。软件中包含的算法，除了是个“谜”之外，与所提供的数据也存在差异。
