Absolute (Testing should not be performed.)• Acute myocardial infarction (within 48 hours or without acute management)• Untreated unstable angina• Uncontrolled cardiac arrhythmias causing symptoms of hemodynamic compromise• Acute or non-compensated congestive heart failure• Severe aortic stenosis, acute aortic dissection, myocarditis or pericarditis• Acute pulmonary embolism or pulmonary infarction• Mental or physical impairment leading to inability to exercise adequately |