Surgical Prehabilitation of Cancer Patients Undergoing Colorectal Resection.

"This arm will receive a 4-week prehabilitation program consisting of:~Exercise: Participants will receive a 3x/week aerobic and strength training exercise program. They will perform 2 workouts per week at home and attend an in-hospital supervised exercise session once per week.~Nutritional counselling: Participants will meet with a registered dietician who will provide personalized nutritional recommendations and a whey protein supplement, tailored according to participants' self-reported dietary intake and anthropometric measurements.~Psychological support: Participants will receive a 90-minute session at baseline, and weekly in-hospital follow-ups throughout the preoperative period. The sessions will aim to reduce preoperative distress and improve adherence to the exercise program and nutritional recommendations. Psychological support will be delivered by a trained master's student, under the direct supervision of a registered Clinical Psychologist."