Lipovetskiĭ B M, Plavinskaia S I, Il'ina G N
Kardiologiia. 1979 May;19(5):54-8.
Twenty healthy individuals and 61 persons who had suffered from myocardial infarction 3 to 18 months previously were examined. They were all males under the age of 50. Tolerance of healthy persons to physical load on a treadmill (according to a standard program) was 3.6 steps of the treadmill test with maximum pulse rate of 166 +/- 2 per minute. The tolerance to load of persons who had a history of myocardial infarction was much lower and varied mainly with the severity of coronary insufficiency. An inadequate reaction of the cardiovascular system to the load was revealed in most of them.
对20名健康个体和61名在3至18个月前曾患心肌梗死的人进行了检查。他们均为50岁以下的男性。健康人在跑步机上对体力负荷的耐受性（根据标准程序）为跑步机测试的3.6级，最大心率为每分钟166±2次。有心肌梗死病史的人对负荷的耐受性要低得多，且主要随冠状动脉供血不足的严重程度而变化。在他们大多数人中发现心血管系统对负荷的反应不足。
