We propose to study the effect of EECP therapy on mean ambulatory blood pressure and noninvasive hemodynamics in subjects with Resistant HTN. We will measure subjects' ambulatory blood pressure and noninvasive hemodynamics parameters at baseline, 4 weeks and 7 weeks. Subjects will undergo a 7 week course (35 sessions) of EECP therapy. Follow up ambulatory BP and non invasive hemodynamic parameters will be measured to evaluate any change in BP.