- Qx Colorectal surgery, HRQoL Health-Related Quality of Life, EORTC QLQ European Organization for the Research and Treatment of Cancer Quality of Life Questionnaires, SPPB Short Physical Performance Battery, FAC Functional Ambulation Classification Scale, HADS Hospital Anxiety and Depression Scale, PASE Physical Activity Scale for the Elderly, MIP Maximum Inspiratory Pressure, SFT Senior Fitness Test