 - documented history of cardiovascular disease including coronary artery disease, uncontrolled hypertension, aortic stenosis, congestive heart failure, cardiac arrhythmias or conduction defects greater that first degree atrioventricular AV block, sinoatrial SA or AV node disease including sick sinus syndrome or symptomatic bradycardia, presence of devices including pacemakers or internal defibrillators, or history of symptoms consistent with any of the aforementioned conditions e.g., angina, dyspnea on exertion, paroxysmal nocturnal dyspnea; 