They got a number of customers with a history of blocked veins, wired them to an electrocardiograph and expected these to do sit-ups until it harm. In some instances, the researchers even forced down on the patients’ chests to make them keep working harder.
The outcome: for the first time the ECG confirmed a definite structure of paid off blood circulation from the heart as the clients worked more difficult. The ECG allowed the experts to identify with deeper accurate exactly how clogged a patient’s arteries were—and the way it would influence his lifestyle. It actually was the first deliberate “stress test,” and it became a simple diagnostic software of cardiology. Continue reading “Tension Screening: Experience pressure? In 1928, a pair of cardio professionals performed an experiment.”