You stop exercising when you cannot reach maximal exercise capacity, cannot continue due to exhaustion, or because of medical reasons - for example, if the ECG shows an abnormality. The ECG recording is performed continuously during the test, and your blood pressure and the amount of oxygen in your blood are monitored. Measurements taken during the test include heart rate, breathing rate, oxygen uptake by the lungs, and the concentration of oxygen and carbon dioxide in the exhaled air. After the test You slow down gradually to let your heart rate and breathing return to normal. All equipment that was attached to your body is removed, except the blood pressure cuff.
Blood pressure is measured until it returns to normal.
Factors affecting results Failure to apply maximum effort during the test. Lack of a tight seal over the mouthpiece. Medications or the presence of disease. Ability to complete the test. In disability evaluations, specific jobs are assigned levels of oxygen consumption that a worker must be able to achieve comfortably in order to be judged able to perform those jobs.