- Unstable physical disorders which might make participation hazardous such as uncontrolled hypertension and tachycardia (systolic blood pressure [SBP] > 150 mm Hg, diastolic blood pressure [DBP] > 90 mm Hg, or a sitting quietly heart rate [HR] > 100 bpm), acute hepatitis (patients with chronic mildly elevated transaminase levels ((2-3 x upper limit of normal) are acceptable) or poorly controlled diabetes.