Okin P M, Ameisen O, Kligfield P
J Electrocardiol. 1986 Oct;19(4):311-8. doi: 10.1016/s0022-0736(86)81058-5.
A new treadmill exercise protocol, modified from the standard Bruce method, was designed to improve ST segment/heart rate slope accuracy and applicability by reducing heart rate increments between exercise stages. In 150 patients exercised according to the new protocol and in 150 patients exercised according to the Bruce protocol, similar exercise tolerance and similar overall heart rate, systolic blood pressure and double product responses to exercise were observed. The mean increment in heart rate between exercise stages of the new protocol was ten beats/minute, which was significantly lower than the 27 beats/minute/stage found with the Bruce protocol. The accuracy of computer-measured ST segment depression was validated by comparison with physician measurement in a separate subgroup of patients with angina pectoris, and serial testing demonstrated stronger interest reproducibility for the ST segment/heart rate slope than for either measured ST segment depression, peak heart rate achieved or duration of exercise.
一种新的跑步机运动方案，是在标准布鲁斯方法的基础上修改而来，旨在通过减少运动阶段之间的心率增量来提高ST段/心率斜率的准确性和适用性。在150例按照新方案进行运动的患者和150例按照布鲁斯方案进行运动的患者中，观察到了相似的运动耐量以及相似的总体心率、收缩压和运动时的双乘积反应。新方案运动阶段之间的心率平均增量为每分钟10次，显著低于布鲁斯方案的每分钟27次/阶段。在一个单独的心绞痛患者亚组中，通过与医生测量结果进行比较，验证了计算机测量的ST段压低的准确性，并且系列测试表明，ST段/心率斜率的测量结果比测量的ST段压低、达到的峰值心率或运动持续时间具有更强的组内再现性。
