A treadmill is a mechanical device that is used to simulate the process of running, jogging or walking. It consists of a control panel and a motorized floor which is able to pass under the subject at the speed that is set. Depending on this speed, the subject will have to walk, jog or run in order to stay in the same place. This is a useful method of exercise because it mimics the good effect of walking and such exercise without having any blocks or obstructions that might occur in a park or at a jogging track. A treadmill can also be used to define some parameters of speed and duration that allow an individual to exercise exactly how he or she wishes to. Most treadmills are equipped with a failsafe device that is attached to the individual in case he or she slips or falls off the treadmill.
For medical purposes a treadmill is used to produce an exercise effort in an individual. The human body is capable of moderating the rate at which food is metabolized depending on the energy required at any given time. When the body is exercising, then the muscles require extra oxygen. This in turn causes the heart to beat faster and the heart itself also requires more blood which is provided by the coronary artery system. During such a stress test, the heart is monitored for any signature of abnormality. The subject is also required to provide any feedback of discomfort that may be felt during the exercise. Any abnormality is used as a diagnostic tool to understand the root cause of the problem. Some typical abnormalities that appear during a stress test include coronary artery problems and heart valve problems.
The treadmill test interpretation of results is important and requires a considerably experienced doctor to be present. There are several results that appear out of a treadmill test. These include heart rate, blood pressure, blood supply to the heart, low oxygen content of the blood and so on. Each of these results is important when it come to interpreting the whole test result. An abnormality in the heart rate may be associated with poor blood supply to the heart. Irregular blood pressure could also be linked to this if one part of the heart is receiving less blood than normal. It is important for the results to be discussed with a cardiologist who will recommend a further course of action.