Ivanov L A
Kardiologiia. 1976 Mar;16(3):37-44.
ECG, pulmonary ventilation and gas exchange were recorded in 36 patients with ischemic heart disease and in 8 practically healthy persons of advanced age bearing a stepwise increasing physical load. In case of an obvious ischemic heart disease the tolerance of physical exertions was found to decline. Under a threshold physical load such patients demonstrate an excess ventilation; a decreased oxygen pulse and a lesser increment of the respiratory quotient, as well as a reduced coefficient of recovery, of the restored oxygen consumption rate, the respiratory rate, minute respiratory volume after exertion. In cases of a possible ischemic heart disease at advanced age the tolerance of physical efforts and a number of spiroergometric indices under a threshold load continue at the same level as in healthy people.
对36例缺血性心脏病患者和8名高龄身体状况基本健康的人进行了心电图、肺通气和气体交换记录，这些人承受逐步增加的体力负荷。在明显的缺血性心脏病病例中，发现体力活动耐受性下降。在阈下体力负荷下，此类患者表现出过度通气；氧脉搏降低、呼吸商增量较小，以及恢复系数降低，恢复的耗氧率、呼吸频率、运动后每分通气量也降低。在高龄可能患有缺血性心脏病的病例中，阈下负荷下的体力活动耐受性和一些运动肺功能指标与健康人处于同一水平。
