Back supports for medical purposes; Posterior spinal fixation devices for the correction of back defects; Posterior spinal fixation devices for the treatment of back defects; Supports for the back; Orthotic apparatus; Orthotic devices; Body training apparatus (therapeutic); Strength training machines for therapeutic use; Therapeutic support devices; Pillows for orthopedic use; Pillows for therapeutic use; Orthopaedic apparatus; Orthopaedic appliances; Orthopaedic belts; Orthopaedic braces; Orthopaedic compression supports; Orthopaedic materials; Orthopaedic strapping; Orthopaedic supports; Supports for orthopaedic use; Mattress apparatus for therapeutic use; Medical therapy apparatus; Apparatus for use in toning muscles for medical rehabilitation; Body rehabilitation apparatus for medical purposes; Exercise devices for medical rehabilitative purposes; Exercising apparatus for medical rehabilitative purposes; Rehabilitation apparatus for medical use; Therapeutic apparatus for physical exercise for rehabilitation