The cardiovascular fitness, also called cardiorespiratory fitness (CRF), says a lot about a person's health and the potential for health outcomes. CRF measures how well the body takes in oxygen and delivers it to its muscles and organs during prolonged periods of exercise.
Generally, the higher the CRF level, the lower the risk for developing a variety of conditions.
During a typical exercise stress test, you will walk, jog or run on a treadmill or ride a stationary bike while the heart rhythm, blood pressure and breathing are monitored. Ther health professional will go over the results after the test. Doctors may recommend avoiding exercise stress if a person suspects an irregular heart rhythm.