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exercise electrocardiography,in medicine, a test that evaluates the performance of the heart by subjecting it to controlled amounts of physical stress. Such tests, which include walking on a treadmill, measure the heart's reaction to an increased demand for oxygen. The test ends when the patient reaches a predetermined heart rate or experiences chest pain or fatigue. See electrocardiographyelectrocardiography
, science of recording and interpreting the electrical activity that precedes and is a measure of the action of heart muscles. Since 1887, when Augustus Waller demonstrated the possibility of measuring such action, physicians and physiologists have recorded
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stress test[′stres ‚test]
A test of new software or hardware under unusually heavy work loads.
A test of equipment under extreme conditions, outside the range anticipated in normal operation.
A procedure involving continuous electrocardiographic monitoring during exercise, as running a treadmill, to test the circulatory response to physical stress.