What Is A Stress Test?
A stress test, also called an exercise stress test, shows doctors how well your heart works during intense physical activity. It gives a more thorough picture of your cardiac health than tests given while you’re at rest.
You’ll typically run or walk on an incline treadmill, or ride a stationary bike. You’ll have 12 leads connected from an electrocardiogram machine to your skin at precise points on your torso. These read your pulse and create a picture of your heart’s electrical activity from many angles.
A stress test can accomplish the following:
1. Diagnose coronary artery disease.
2. Diagnose heart rhythm irregularities (arrhythmias, including atrial fibrillation).
3. Give a doctor guidance on a treatment plan that’s in progress.
A stress test can be expanded to test fitness:
If you’re a competitive athlete, your coach or sports physiologist may ask for a VO2 Max test to be included in your stress test. This is to evaluate your overall aerobic fitness level. In this version of the test, you’ll be fitted with a mask that measures the carbon dioxide content of all the air you exhale. Instruments will calculate how much oxygen you’re able to process during peak activity, measured in milliliters of oxygen per kilogram of bodyweight per minute.