Agarwal P, Arora S R, Agarwal S, Aneja G K, Agarwal P K
Department of Physiology, LLRM Medical College, Meerut.
Indian J Physiol Pharmacol. 1998 Apr;42(2):303-6.
Thirty four healthy young male subjects performed symptom limited exercise on Bruce protocol on treadmill machine. Hyperventilation induced labile repolarisation ST-T abnormalities were observed in 2 whereas exercise induced ST changes (upsloping ST depression in 4 and horizontal ST depression in 1) were observed in 5 additional candidates. Changes were unaccompanied by symptoms or signs and quickly reverted back to normal within 30 sec. of cessation of exercise and hence were 'probable false positives'. Sixty-eight age and sex matched volunteers (including former 34) when exercised on Master's stepper, failed to reveal any change probably due to the lack of continuous ECG monitoring device.
34名健康年轻男性受试者在跑步机上按照布鲁斯方案进行症状限制性运动。2名受试者出现了过度通气诱发的不稳定复极ST-T异常，另外5名受试者出现了运动诱发的ST段改变（4名表现为ST段下斜型压低，1名表现为水平型ST段压低）。这些改变没有伴随症状或体征，且在停止运动后30秒内迅速恢复正常，因此可能是“假阳性”。68名年龄和性别匹配的志愿者（包括之前的34名）在使用马斯特台阶运动仪运动时，由于缺乏连续心电图监测设备，未发现任何变化。
