Robotic exoskeleton suits for medical purposes; artificial limbs; artificial limb assemblies; prostheses; prosthetic apparatus; prostheses joint sockets; prosthetic implants; orthopaedic articles; artificial joints; medical therapy instruments; computer controlled exercise apparatus for therapeutic use; exercise machines for medical rehabilitative purposes; exercise equipment for medical rehabilitative purposes; exercise apparatus for medical rehabilitative purposes; therapeutic and assistive devices adapted for the disabled; assistive devices adapted for the disabled.