**7.2 Contraindications**

Uncontrolled hypertension — that is, resting systolic blood pressure > 180 mm Hg and/or resting diastolic blood pressure > 110 mm Hg

Uncontrolled atrial or ventricular arrhythmias

Orthostatic blood pressure drop of >20 mm Hg with symptoms

Uncontrolled sinus tachycardia (>120 beats · min − 1)

Significant aortic stenosis (aortic valve area < 1.0 cm2)

Unstable angina

Uncompensated heart failure.

*Exercise Prescriptions for Co-Morbid Conditions DOI: http://dx.doi.org/10.5772/intechopen.98339*

Third-degree atrioventricular block without pacemaker. Active pericarditis or myocarditis Recent embolism (pulmonary or systemic) Acute thrombophlebitis Aortic dissection Acute systemic illness or fever Uncontrolled diabetes mellitus Severe orthopedic conditions that would prohibit exercise Other metabolic conditions, such as acute thyroiditis, hypokalemia, hyperkalemia, or hypovolemia (until adequately treated) Severe psychological disorder
