Influence of perioperative step volume on complication rate and length of hospital stay after colorectal cancer surgery

Interventions: Group 1: Patients assigned to the intervention group will receive a pedometer preoperatively with a defined step goal of 7500 steps daily. Postoperatively, the patients receive a predefined target of daily steps to be achieved in the first days after surgery. On the first postoperative day these are at least 500 steps, on the 2nd postoperative day 1000 steps, on the 3rd postoperative day 2000 steps, on the 4th postoperative day 3000 steps and on the 5th postoperative day and 4000 steps. The actual steps taken are documented regardless of whether the goal is reached.
Group 2: The control group receives a pedometer preoperatively with the request to document the daily steps taken without a defined step target. The pedometer continues to be used postoperatively and the number of steps is documented during the inpatient stay.
Primary outcome(s): Length of hospital stay
Study Design: Allocation: Randomized controlled study; Masking: Blinded (masking used); Control: active; Assignment: parallel; Study design purpose: treatment