What Is a Treadmill Test?

A treadmill test, or exercise stress test, is commonly performed on individuals in a doctor's office or hospital. It determines how well your heart and lungs work under stressful situations like exercise. Doctors use the test results to determine if there are any underlying health issues and to recommend exercise regimens.

What is a treadmill test?

• You walk or run on a treadmill while electrodes record your breathing and the movements of your heart. The exercise causes your heart to beat faster, increasing blood flow. The test determines whether your blood is being pumped most efficiently.

Who gets treadmill tests?

• Patients who have had certain heart operations or who have symptoms of cardiovascular disease, such as intermittent chest pain or shortness of breath, routinely take treadmill tests. They are also prescribed for people who want to see what level of exercise they can safely achieve.

For what does it test?

• Treadmill tests can diagnose coronary artery disease and many other heart conditions. They can check the condition of the heart or lungs after surgery, or predict impending cardiovascular problems.

What happens during the test?

• The test begins with a slow walk. Gradually, the speed is increased along with the incline of the treadmill. As time passes, the test becomes more physically demanding, putting more stress on your heart and lungs. The electrodes send information to a computer that is monitored by the test administrator, who notates the test results so that they can be interpreted by your doctor. Once the test is complete, you will sit or lie down and have your blood pressure monitored.
  Your doctor will assess your results and recommend further action if warranted.

Is this test safe?

• This test is safe for all healthy individuals and most others, under supervision. The test can be stopped at any time should you feel any kind of discomfort.