Multimodal Prehabilitation in Colorectal Cancer: Improving Fitness, Lifestyle, and Post-Surgery Outcomes.

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Objectives: This study aimed to analyze the effect of a multimodal prehabilitation program for colorectal cancer patients in body composition, physical and cardiorespiratory fitness as well as its ability to reduce postoperative complications. Methods: A longitudinal observational study evaluated the efficacy of a prehabilitation intervention based on four components: (a) health education and self-care, (b) nutritional counseling, (c) psychological support, and (d) supervised physical exercise. Body composition was determined through bioelectrical impedance analysis; physical fitness variables such as strength was measured by a handgrip dynamometer for upper limbs, and a squat-jump test, countermovement jump test using a contact platform, and a chair-stand test for lower limbs. Flexibility was assessed with the sit-and-reach test. Cardiorespiratory fitness was assessed with the 6 min walking test (6MWT). Moreover, we measured lifestyles related to the amount of physical exercise by accelerometry. Results: The final cohort included 30 patients. Patients completed an average of 9.90 ± 5.26 exercise sessions. Statistically significant changes with varying effect sizes were observed in the following outcomes: SJ values in cm and W for both sexes (p = 0.021/d = 0.14 and p = 0.043/d = 0.10, respectively), SJ in W for women (p = 0.023/d = 0.21), all chair-stand test values (p = 0.021/d = 0.65 for men, p = 0.004/d = 2.08 for women, and p = 0.000/d = 0.84 for both sexes), and sit-and-reach for both sexes (p = 0.005/d = 0.12) and for men (p = 0.044/d = 0.08). All 6MWT values had statistically significant changes (p = 0.001/0.46). Women reduced the weekly minutes spent in sedentary behavior (p = 0.037/d = 0.65) and increased the minutes spent performing light physical activity (p = 0.037/d = 0.63). With regard to surgical outcomes, there was a tendency towards a decrease in postoperative complications and hospitalization days, as well as minutes in postoperative REA (p = 0.009/d = 0.69) in relation to the control group. Conclusions: Participation in a multimodal prehabilitation program improves several aspects of physical condition and lifestyles related to the amount of physical exercise and reduces both days of hospitalization and several complications post-surgery.