Heart Cycle GEx (Guided- Exercise- Main Trial)

Both intervention and control group undergo a baseline evaluation and an end evaluation including tests of the clinical routine like cardiopulmonary test (CPX), echocardiography and lactate measurement. They will also answer questionnaires referring to quality of life and the use of the system. During the training phase at home the interventional group will test the supervised training system during endurance training such as running, biking or walking and during resistance training such as performing exercise with rubber bands (at least 3x a week for about 5-6 months according to the generated prescription plan during training at the hospital). They will report their daily activity by diary. The control group will only report their physical activities by diary without using the Gex- System. At the end data are investigated to determine whether the supervised training with the GEx- System will improve the physical capacities ( VO2 peak) of patients.