Why the study?
Does a pressure-rate-product conducted exercise stress testing method produce a linear increase in PRP?
Does a pressure-rate-product conducted exercise stress testing method produce a linear increase in PRP?
A novel exercise stress testing protocol that continuously adjusts workload to achieve a linear increase in pressure-rate-product was feasible in a small initial test, suggesting potential safety benefits for patients with ischemic heart disease.
The classical and standardized method for exercise stress testing is to increase a work load of a bicycle ergometer or treadmill by stepwise increase method.This precedure somethimes provokes a non-stepwise increase in the myocardial oxygen consumption.We, therefore, have developed a new exercise stress testing method for subjects with myocardiaI ischaemia.The work loads of the ergometer in continuously adjusted so that a linear increase in the PRP(systolic blood pressure×heart rate)could be obtained.Using this method, three subjects performed exercise stress testing.The results produced good lineahties between the predicted PRP and actual PRP.It is suspected that this new-method might be safe and applicable to patients with ischaemic heart disease.
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Ichimaru et al. (1985) studied this question.
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