Yield of ischaemic exercise electrocardiograms in relation to exercise intensity in a normal population.
Yield of ischaemic exercise electrocardiograms in relation to exercise intensity in a normal population.
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正常人群中缺血运动心电图的产量与运动强度的关系。
DOI：
10.1136/hrt.34.9.919
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发表时间：
1972
影响因子：
--
通讯作者：
G. Cumming
中科院分区：
文献类型：
--
作者：
G. Cumming
在年龄40-65岁的无症状男性人群中进行最大自行车测力计运动，发现63例受试者出现“缺血性”ST段改变。出现这种变化时的工作强度表示为实际心率占最大心率的百分比，摄氧量占最大摄氧量的百分比。如果运动在目标心率为预期最大心率的85%时停止，则会错过一半的异常反应。证据支持使用分级运动试验进行到自愿疲劳点。27%的受试者仅在超负荷运动期间和/或之后出现缺血性变化。
Maximal bicycle ergometer exercise in an asymptomatic male population, aged 40-65 years, revealed 63 subjects with 'ischaemic' ST changes. The work intensity at the time of appearance of this change was expressed as actual heart rate as a per cent ofmaximum heart rate, and oxygen uptake as a per cent of maximal oxygen uptake. If the exercise had been stopped at a target heart 'rate of 85 per cent of expected maximum heart rate, half of the abnormal responses would have been missed. The evidence favours the use of a graded exercise test proceeding to the point of voluntary fatigue. The ischaemic change was noted only during andlor after a supermaximal exercise load in 27 per cent of the subjects.