Inclusion Criteria:  written consent to participate in the study, full legal age, surgically treated hip acetabular fracture, time after the surgery between 3 and 84 months, full cognitive abilities, -full medical documentation, - the ability to fully load the operated limb (doctor's consent).  Exclusion Criteria:  craniocerebral injuries, visual system disorders, neurological disorders, ear and sinuses infections, spinal pain injuries to the lower extremities, chronic illnesses (cancer, Parkinson's disease, epilepsy, diabetes, neuro-muscular disorders, uncontrolled coronary heart disease), taking psychoactive substances, lower limb thrombosis