Studies of Electrocardiographic Changes during Exercise (Modified Double Two-Step Test) | Zendy

Paul N. Yu | Zendy; Alfred Soffer | Zendy

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Studies of Electrocardiographic Changes during Exercise (Modified Double Two-Step Test)

Author(s) -

Paul N. Yu,

Alfred Soffer

Publication year - 1952

Publication title -

circulation

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 7.795

H-Index - 607

eISSN - 1524-4539

pISSN - 0009-7322

DOI - 10.1161/01.cir.6.2.183

Subject(s) - medicine , cardiology , electrocardiography , heart rate , step test , test (biology) , st segment , significant difference , blood pressure , myocardial infarction , paleontology , biology

A method of recording electrocardiograms during the performance of a double two-step exercise test is described. Data obtained from 32 normal subjects and 54 patients are analyzed, and changes in heart rate, S-T segment, T wave and Q-T interval and the occurrence of premature beats described. Criteria for an abnormal response indicating coronary insufficiency are defined. This method retains the merits of Master's original test and in addition has several distinct advantages.

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