Orr G W, Green H J, Hughson R L, Bennett G W
J Appl Physiol Respir Environ Exerc Physiol. 1982 May;52(5):1349-52. doi: 10.1152/jappl.1982.52.5.1349.
The anaerobic threshold has generally been determined by simple visual inspection of ventilation or other gas-exchange data obtained during incremental exercise. To establish objective criteria for the determination of anaerobic threshold, a computer algorithm has been developed that models the ventilatory response to exercise using multisegment linear regression. The best-fit regression model is chosen by minimizing the pooled residual sum of squares . The anaerobic threshold is reported as the first break point in that model. The computer-determined anaerobic threshold values for 37 subjects were compared with subjectively determined values as chosen by four independent observers. The observers' estimates, when pooled to yield a single a single value for each subject, gave a mean value for the gas-exchange anaerobic threshold of 2.26 +/- 0.69 l/min. The estimates by the computer method averaged 2.21 +/- 0.65 l/min. The correlation coefficient for these two methods was 0.94.
无氧阈通常通过在递增运动期间对通气或其他气体交换数据进行简单的视觉检查来确定。为了建立确定无氧阈的客观标准，已开发出一种计算机算法，该算法使用多段线性回归对运动时的通气反应进行建模。通过最小化合并残差平方和来选择最佳拟合回归模型。无氧阈报告为该模型中的第一个断点。将37名受试者的计算机测定的无氧阈数值与由四名独立观察者选择的主观测定值进行比较。观察者的估计值汇总后为每个受试者得出一个单一值，气体交换无氧阈的平均值为2.26±0.69升/分钟。计算机方法的估计平均值为2.21±0.65升/分钟。这两种方法的相关系数为0.94。
