The objective of this study is to evaluate the performances of the Six-Minute Stepper Test (6MST) and Sit To Stand test (STST) to predict post-operative complications after minimally invasive lung cancer resection.

Inclusion Criteria:

• Age >18
• Non-small cell lung cancer stage I to II, justifying major resection by VATS or RATS (segmentectomy, lobectomy, pneumonectomy), with or without histological confirmation

Exclusion Criteria:

• Partial or total amputation localized to the lower limb;
• Weight greater than 100 kg;
• Orthopedic, vascular or neurological disorders leading to the incapacity of realize the 6MST;
• Patient under tutorship or curatorship;
• Pregnant woman.
• Surgery canceled

Consecutive patients are included. On the day of the surgical consultation, the patient is informed of the modalities of the study by the thoracic surgeon and collects his non-opposition of participation. He is also evaluated by a physiotherapist, who supervises the realization of 6MST and STST.