Exercise Stress Testing

A stress test, sometimes called a treadmill or an exercise test, helps your doctor see how well your heart works during physical activity.

As your body works harder during the test or during physical exertion, it needs more oxygen and energy. To meet this demand the heart must beat faster and harder. The test shows if your heart gets enough blood from its own arteries to work harder, safely.Taking the stress test also helps your doctor know what type of exercise and how much is right for you.

There are many kinds of stress tests available. The oldest type was the Master's Two Step and requires the patient to climb up and down steps. Some physicians use bicycle testing. Most use motor driven treadmills.

The basic stress test requires leads on the chest to provide the electrocardiographic signal. The electrocardiogram is the electrical signal the doctor monitors during the test. The doctor monitors your heart rate, heart rhythm, and looks for changes which suggest that the heart itself is not receiving enough blood. He/she will record an electrocardiogram at rest, at peak exercise, and afterwards. He/she will also check your blood pressure before, during and after the test. The doctor will ask about symptoms and how tired you feel.

Initially the test starts slowly. With time the speed or incline (hill) may increase. You can stop the test at any time if you need to. You are encouraged to do the best you can but not to hide symptoms. After the test you may sit or lie down while the doctor continues to monitor your heart rate, ECG, and blood pressure.