Feasibility of an Acute Physical Exercise Before Treatment Infusion for Metastatic Lung Cancer Patients

"Patients will receive physical activity recommendations at inclusion.~At each treatment cure, patients will receive pre-exercise nutritional recommendations and an acute physical exercise prior to immunotherapy and chemotherapy. The acute physical exercise will last 35 minutes and will be intermittent and individualized based on the results obtained by the patient during an endurance test on a ergocyle performed prior to treatment.~3 blood sampling times (2 EDTAsx10 mL) will be specially added to the study and will take place before exercise (1), after exercise (2) and 12 hours after the start of treatment (3).~A nutritional assessment will be carried out during the first and last treatment cure.~They will also benefit a home walking program. These patients will have to wear an activity tracker tracker during all intervention (3 months).~They will have a phone follow-up every 10 days (± 3 days) after each treatment cure for the study duration."