Setrakian S A, Volovoi V L, Shtein I A
Tashkent Branch, USSR Surgery Research Centre, Academy of Medical Sciences, Tashkent.
Cor Vasa. 1989;31(4):281-5.
In 373 cardiac surgery patients and in 33 healthy persons, the authors compared the results of two (continuous and discontinuous) types of exercise tests designed to assess maximal (VO2max) and peak (VO2peak) oxygen uptake, anaerobic threshold (AT), threshold of decompensated metabolic acidosis (TDMA) and oxygen cost of exercise. The authors found that use of continuous tests is associated very rarely with "plateau" oxygen uptake (in less than 1%); it is present in 20.6% during discontinuous tests. Nevertheless, the values of VO2peak obtained in continuous tests and VO2max did not differ significantly. This makes VO2peak a fairly accurate indicator of VO2max if sufficiently exact criteria of maximal exertion have been defined. Both types of exercise tests provide close values of oxygen uptake at AT, TDMA and oxygen cost of physical exercise (up to 100 W). Therefore, both types of exercise tests can be employed in evaluating the functional state of the oxygen transport system in cardiac surgery patients.
在373例心脏手术患者和33名健康人身上，作者比较了两种（连续和不连续）运动测试的结果，这些测试旨在评估最大摄氧量（VO2max）、峰值摄氧量（VO2peak）、无氧阈值（AT）、失代偿性代谢性酸中毒阈值（TDMA）和运动氧耗。作者发现，连续测试很少出现“平台期”摄氧量（不到1%）；在不连续测试中，这一比例为20.6%。然而，连续测试中获得的VO2peak值与VO2max值没有显著差异。如果定义了足够精确的最大运动标准，这使得VO2peak成为VO2max的一个相当准确的指标。两种运动测试在AT、TDMA和体育锻炼氧耗（高达100瓦）时提供的摄氧量值相近。因此，两种运动测试均可用于评估心脏手术患者氧运输系统的功能状态。
