Practice guidelines recommend early physical therapy in intensive care unit. Feasibility, safety and efficacy are confirmed by growing evidence based data. However, the scientific literature emphasizes the heterogeneity of targeted populations, lack of precisions concerning eligibility criteria, program modalities, timing initiation, progressions and stopping criteria. However, all these results remain to be precised and confirmed. So, the investigators hypothesize that an early exercise program in intensive care unit formalized from a decisional algorithm is well tolerated in clinical practice.

Practice guidelines recommend early physical therapy in intensive care unit. Feasibility, safety and efficacy are confirmed by growing evidence based data. However, the scientific literature emphasizes the heterogeneity of targeted populations, lack of precisions concerning eligibility criteria, program modalities, timing initiation, progressions and stopping criteria. However, all these results remain to be precised and confirmed. So, the investigators hypothesize that an early exercise program in intensive care unit formalized from a decisional algorithm is well tolerated in clinical practice.

Inclusion Criteria:

• Men and women
• Over 18 years old
• Hospitalized in intensive care unit
• Patients whose clinical condition allows initiating an early exercise program from critical care physician inclusion

Exclusion Criteria:

• Less than 18 years old or disabled adult
• Head or spinal severe trauma
• Severe trauma of the lower limbs or pelvis
• Musculoskeletal and neurological conditions which do not permit to realise the exercise program
• Patient for whom the reason for hospitalization does not justify early physical therapy

critical care unit patients