Inclusion criteria:  Total hip arthroplasty (THA) monolateral, first implant Locomotor autonomy with or without aids before surgery BMI (regular, overweight, Grade I obesity) No complications in surgery Orthopaedic prescription of tolerance load on the limb Autonomy with aids within the third post-operative day  Exclusion Criteria:  Previous total hip replacement on contralateral hip Dementia or other conditions affecting patient's collaboration Unresolved clinical complications in the first two post-operative days Neurological, musculoskeletal or other disorders able to impact on functional recovery Visual or auditory deficits Total or partial revisions of THA Patients assigned to different groups hospitalized in the same room