Not that it is needed but here is more evidence that physical fitness is related to health risk. The maximum consumption of oxgygen during an exercise test is a reliable measure of physical fitness. This study links the results of the test with the risk of death for patients with coronary artery disease. Low levels indicate greater risk of death and improvement of the measure reduces the risk of death. A plan that gradually increases walking to 10,000 steps daily will improve fitness and reduce health risk.
Results of exercise test may predict death in patients with coronary artery disease