What intensity and duration of exercise is best?
In many cases a discussion of exercise intensity with an individual starting a weight loss program is irrelevant because many are not fit enough to perform more than low intensity exercise. If possible, it is advisable to perform an exercise stress test prior to initiating an exercise program. Such a test serves two functions for the obese individual. First, it is likely that an obese individual would possess several risk factors for coronary artery disease, such as a family history for heart disease, an unfavorable lipid profile, hyperglycemia and/or hyperinsulinemia, hypertension, and other related conditions. Thus, an exercise stress test which monitors EKG tracings is suggested to detect possible ischemia and clear the subject to initiate an exercise training program. Secondly, a properly administered maximal test will result in the attainment of a maximal heart rate. The maximal heart rate can then be used to calculate a suitable exercise prescription, which will incrementally inc