Khalfen E Sh, Klochkov V A
Ter Arkh. 1984;56(11):23-6.
To assess the bicycle ergometry test, use was made of the indicator of the repolarization rate suggested by the authors. This indicator was calculated according to the first derivative end part of the ventricular complex as a quotient obtained by division of the amplitude of its second phase by the magnitude of the first phase amplitude. In normal subjects at rest, the rate indicator was equal to 1.6 on the average, whereas in patients with angina pectoris, to 1.2-1.5. During the bicycle ergometry test, the indicator decreased to 1.0 (under an average load of 125 W in normal subjects and 25-75 W in angina pectoris patients). The change of the rate indicator to 1.0 outstripped by 40.6 W the moment of recording the conventional criteria of bicycle ergometry test discontinuation. The assessment of the repolarization rate during the bicycle ergometry tests enables one to apply small loads, thereby making the test practically safe and expanding the possibilities of its use.
为评估自行车测力计测试，采用了作者提出的复极速率指标。该指标根据心室复合波的一阶导数末端部分计算得出，其为心室复合波第二相振幅除以第一相振幅大小所得的商。在静息状态的正常受试者中，速率指标平均等于1.6，而在心绞痛患者中则为1.2 - 1.5。在自行车测力计测试期间，该指标降至1.0（正常受试者平均负荷为125瓦，心绞痛患者为25 - 75瓦）。速率指标降至1.0比记录自行车测力计测试终止的传统标准的时刻提前了40.6瓦。对自行车测力计测试期间复极速率的评估能够采用小负荷，从而使测试实际安全并扩大其应用可能性。
