The Purpose of this study is to 1) investigate prevalence of diastolic dysfunction in patients with morbid obesity attending a conservative lifestyle change program, 2) investigate effects on cardiac function, cardiorespiratory Fitness, body composition, quality of life and cardiovascular risk through the program, 3) investigate feasibility of introducing two different activity monitors throughout the program, and 4) comparing compliance to activity sensor market leader FitBit Application versus Mio Pai Application