Preoperative Physical Activity Improvement With the Use of Activity Trackers Before Radical Cystectomy (PreAct)

Inclusion Criteria: * Planned radical cystectomy with bilateral pelvic lymphadenectomy and one of the different forms of urinary diversion (continent vs. incontinent; orthotopic vs. heterotopic) in patients with bladder cancer * Participants age ≥ 18 years and capacity to consent * Mobile participant who is not dependent on a walking aid * The participant declares his or her consent to participate in this study by signing and dating the informed consent form prior to the surgical procedure Exclusion Criteria: * Karnofsky performance status scale ≤ 70% (with 70%: Care for self. Unable to carry on normal activity or to do active work (Ambulatory and capable of all selfcare but unable to carry out any work activities). ) (Range: 0 - 100 percent with 0 percent "participant´s death" and 100 percent "no disabilities" * ASA Physical Status Classification: ASA \> 3 (3: A patient with severe systemic disease) * ASA 1, 2, 3 if acute or chronic diseases of the musculoskeletal system or the central nervous system are involved that result in a symptomatic restriction of motor and / or, in the last case, neurological function (healing ruptures and fractures, Parkinson's disease, multiple sclerosis, etc.) * Emergency intervention