RESEARCH PLAN This is a prospective, randomized controlled pilot-study in 40 CRC patients. The study is a collaboration between Center for Physical Activity Research, Rigshospitalet, Institut for Folkesundhedsvidenskab, Copenhagen University, Oncology Clinic, Rigshospitalet, Abdominalcenter K, Bispebjerg Hospital, Gastroenheden Hvidovre Hospital, and Patientforeningen for Tarmkræft.