Flexi Band Resistance Training Versus EMS Exercise in Patients With the Diagnosis of Malignant Diseases

Inclusion Criteria: * malignant disease (solid or hematological cancer): head and neck cancer, colorectal carcinoma, small intestinal cancer, gastric cancer, oesophageal cancer, pancreas carcinoma, liver cell carcinoma, cholangiocarcinoma, lung cancer, breast cancer, cervix cancer, ovarian cancer, prostate cancer, renal cell carcinoma, malignant melanoma, patients with leukaemia and malignant lymphomas or Graft-versus-Host-Disease after bone marrow transplantation * ongoing or planned curative or palliative anti-cancer therapy * ECOG-Status 0-2 Exclusion Criteria: * simultaneous participation in other nutritional or exercise intervention Trials * bone metastases with high fracture risk * cardiovascular disease * use of anabolic medications * epilepsy * severe neurological or rheumatic diseases * skin lesions in the area of electrodes * energy active metals in body * pregnancy * acute vein thrombosis