Study: NCT05099211

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Muscle biopsies
Description: Optional~In pre-training:~Biopsy performed during the digestive surgery procedure~Final evaluation (minimum 1 day and maximum 7 days after the last training session): biopsy performed in the digestive surgery department.

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Muscle biopsies
Description: Optional~In pre-training:~Biopsy performed during the digestive surgery procedure~Final evaluation (minimum 1 day and maximum 7 days after the last training session): biopsy performed in the digestive surgery department.

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Muscle Strengthening
Description: 3 sessions per week for 18 weeks. Duration: 1 hour Training on different strength training machines for the main muscle groups of the lower and upper limbs. The training load will be gradually increased over the sessions.

Intervention type: BIOLOGICAL
Group type: EXPERIMENTAL
Intervention: Blood and urine samples
Description: fasting blood sample taken at assessments 1, 2, 3 and 4 for patients and assessment 1 for controls

Intervention type: BIOLOGICAL
Group type: ACTIVE_COMPARATOR
Intervention: Blood and urine samples
Description: fasting blood sample taken at assessments 1, 2, 3 and 4 for patients and assessment 1 for controls

Intervention type: BIOLOGICAL
Group type: EXPERIMENTAL
Intervention: Blood and urine samples
Description: fasting blood sample taken at assessments 1, 2, 3 and 4 for patients and assessment 1 for controls

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Aerobic Training
Description: 3 sessions per week for 18 weeks. Duration: 1 hour Training on a classic pedal bicycle (called an ergocycle). The intensity and duration of the training will be gradually increased over the sessions and according to the patient's abilities.

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Evaluation 1 pre-surgery
Description: Carried out at least 15 days before surgery~1. st visit:~   * Nutritional assessment~  * Body composition~  * Psychometric tests of quality of life + IPAQ Test~  * VO2pic~2. nd visit:~   * Neuromuscular tests~  * Functional tests

Intervention type: OTHER
Group type: ACTIVE_COMPARATOR
Intervention: Evaluation 1 pre-surgery
Description: Carried out at least 15 days before surgery~1. st visit:~   * Nutritional assessment~  * Body composition~  * Psychometric tests of quality of life + IPAQ Test~  * VO2pic~2. nd visit:~   * Neuromuscular tests~  * Functional tests

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Evaluation 1 pre-surgery
Description: Carried out at least 15 days before surgery~1. st visit:~   * Nutritional assessment~  * Body composition~  * Psychometric tests of quality of life + IPAQ Test~  * VO2pic~2. nd visit:~   * Neuromuscular tests~  * Functional tests

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Evaluation 2 post-surgery
Description: 1. st visit:~   * Body composition~  * Nutritional assessment~  * Psychometric tests of quality of life~2. nd visit:~   * neuromuscular tests~  * Functional tests~  * Familiarization with training equipment if patient participates in re-training

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Evaluation 2 post-surgery
Description: 1. st visit:~   * Body composition~  * Nutritional assessment~  * Psychometric tests of quality of life~2. nd visit:~   * neuromuscular tests~  * Functional tests~  * Familiarization with training equipment if patient participates in re-training

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Intermediate Evaluation 3
Description: performed 9 weeks after the beginning of training Identical tests to evaluation 1 + TM6

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Intermediate Evaluation 3
Description: performed 9 weeks after the beginning of training Identical tests to evaluation 1 + TM6

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Final post-training evaluation 4
Description: Tests identical to evaluation 1 + TM6

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Final post-training evaluation 4
Description: Tests identical to evaluation 1 + TM6