Climb(Artivila)

The goal of this interventional study is to improve exercise capacity of patients following a standard rehabilitation program in Arras Hospital with stair climbing .
Patients will be randomized in to 2 groups : intervention or control.
* Control group will follow standard program.
* Intervention group will follow standard program and stair climbing (2 floors, twice a day until the exit).
Patients will complete questionnaires and tests before starting study and again at the end (approximately 10 days).