Efficacy of Adapted Physical Activity on a Walking Platform in Elderly Patients HOspitalized for Cancer Surgery

Inclusion Criteria: * Men or women aged 65 or over * Candidate for scheduled major oncological surgery and/or surgery with high morbidity * Patient able to walk for 10 minutes on the walking platform at the time of the test * Patient affiliated to a social security system * Signature of informed consent prior to any specific study-related procedure Exclusion Criteria: * Patient with severe undernutrition (BMI\<18, and/or weight loss \>15% in 6 months or \>10% in 1 month) * Emergency surgery * Physical contraindications preventing use of the platform * Simultaneous participation in another clinical study that could compromise the conduct of this study * Patients deprived of their liberty, under guardianship or subject to a legal protection measure, or unable to express their consent. * Patient unable to undergo trial follow-up for geographical, social or psychopathological reasons.