Effects of a WhatsApp-assisted Prehabilitation for Patient Undergoing Elective Colorectal Cancer Surgery

The goals of this study is to evaluate the feasibility and the effects of a WhatsApp-assisted prehabilitation for colorectal cancer patients undergoing elective surgery. The main questions are: If the digital prehabilitation is feasible and acceptable by the colorectal cancer patient prior to elective surgery? If this prehabilitation helps to improve the postoperative complications, length of stay, physical activity and psychological well-being for colorectal cancer patients receiving surgery. Researcher will compare the prehabilitation plus standard care to standard care only to see if the prehabiliation helps the colorectal cancer patients. Participants will: 1) enrolled in a approximate 4 weeks (3 episodes/ week) prehabilitation program containing educational information of colorectal cancer, dietary advice, exercises training and psychological podcasting. 2) will answer the survey weekly and after surgery. 3) keep the standard care as per department guidelines