Adherence to Long-term Exoskeleton Rehabilitation to Treat Lower Limb Weakness and / or Deficiencies in Adult Population

Inclusion Criteria: * Patient suffering from lower limb weaknesses and / or deficiencies regardless of the cause * Adult patient ≥18 years old * Patient able to read and write in French and who have signed an informed consent form * Patient affiliated to a social security system. Exclusion Criteria: * Individual with severe spasticity of adductor muscles, hamstring, quadriceps and triceps surae. Severe spasticity is defined by a score of 4 on the modified Ashworth scale * Pregnant woman * Individual with history of osteoporotic fracture and / or pathology or treatment causing secondary osteoporosis * Pressure Ulcer of Grade I or higher according to the NPUAP International Pressure Ulcer Classification System- EPUAP, in areas of contact with the Atalante X system * Severe aphasia limiting ability to express needs or to fulfil questionnaires, at the discretion of the physician. * Patient with a cardiac or respiratory contraindication to physical exertion, at discretion of the physician * Patient unable to deliver his/her consent * Patient under legal protection * Patient participating at the same time in another study * Patients with morphological contraindications to the use of the Atalante X exoskeleton (as per user's manual) with exceptions as follows: knee flessum of 20° authorized if sensibility is present; equinus of the ankle of 20° allowed regardless of presence or absence of sensibility, hip flessum of 20° allowed regardless of presence or absence of sensibility.