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麦氏双倍二级梯运动试验(简称双梯)及踏车、踏板分级运动试验,是估计冠状动脉血供情况常用的方法之一。董氏认为:双梯对多数人是接近次极量的运动试验,目前仍不失为一项有价值的诊断方法。若双梯运动后,心率达不到120次/分,可以考虑次日应用加强双梯试验,使运动量尽量接近次极量。我们在实际工作中看到,双梯运动量仅为受试者次极量的60％左右。1977年以来,试用心电图下蹲运动试验(简称下蹲),其运动量为次极量的85％左右,对137例45岁以上病例,与双梯作对比观察,现报告如下:
Maxwell’s double second-order ladder exercise test (referred to as double ladder) and treadmill treadmill grading exercise test is one of the commonly used methods to estimate coronary blood supply. Dong believes that: double ladder to the majority of people is close to the second most extreme exercise test, is still a valuable diagnostic method. If the double ladder exercise, the heart rate less than 120 beats / min, you can consider strengthening the application of double ladder test the next day, so that the amount of exercise as close as possible. In actual work, we saw that the amount of double-ladder exercise was only about 60% of the subjects’ sub-maximal amount. Since 1977, the trial electrocardiogram squat exercise test (referred to as squatting), the amount of exercise for the submaximal 85% of the 137 cases over the age of 45 cases, compared with the double ladder for the comparison, the report is as follows: