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Stress exercise physiologic monitoring systems designed to evaluate the cardiac response of a person to physical stress while the individual is performing exercise on a treadmill or a bicycle ergometer. These systems usually include an exercise machine, an electrocardiograph with appropriate electrodes, computing capabilities, a display, a recorder, and a printer (e.g. laser, Deskjet). Typically, the patient performs the test following a protocol that gradually increases his or her work (e.g., increasing the speed of a treadmill) while the electrocardiographic signal is monitored; the data is analyzed, and a report is printed. Some systems can automatically determine heart rate, analyze the ST-segment trend, and detect arrhythmias. Cardiac stress exercise monitoring systems are used mostly to diagnose and monitor the course of coronary artery diseases.
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