Recording the Electrocardiogram during the Performance of the Master Two-Step Test: I

Abstract

Various technics for recording the electrocardiogram while the patient was exercising on the Master two-step apparatus were evaluated. Satisfactory tracings were obtained both by radiotelemetry (when the apparatus was properly aligned) and a direct hook-up technic that requires only standard equipment. Recommended electrodes are described, electrode positions discussed, and possible pitfalls of the technics enumerated. It is concluded that for the specific purpose of monitoring the two-step test, radiotelemetry is unnecessary and perhaps less desirable than direct hook-up monitoring.