Surgical management is one of the most frequently used interventions in the treatment of many cancers, but it can be associated with a high risk of postoperative complications.

The maintenance and optimization of functional abilities before, during and after treatment are major for elderly cancer patients, as it is now well established that there is a link between the level of functional capacity and the occurrence of these complications.

The scientific literature shows that the benefits of pre- and post-operative training programs, but these benefits only apply to a fraction of the patients adhering to the programs. The modalities of intervention (training load, follow-up, etc.) as well as patient involvement in these programs are major issues that need to be addressed to optimize their benefits.

Individualizing pre-habilitation, on the basis of the management of the training load, and therefore objective fatigue, would enable better patient adherence to the program, and optimize its benefits.

In this context, the PRIMECHO project aims to individualize pre-habilitation in order to improve functional of patients in the pre-habilitation or accelerated recovery after surgery phase. The aim is for the patient to be in optimum physical condition at the time of the intervention or treatment.

Inclusion Criteria:

• Patient aged 70 or over
• Cancer patient with planned surgery,
• Mini Mental State Examination score greater than or equal to 24 (performed in advance by the geriatrician),
• Patient affiliated to or benefiting from a social security insurance
• Signed free and informed consent.

Exclusion Criteria:

• Inability to walk or perform unsupervised exercises.
• Vulnerable people