Subjects in the experimental group were treated using ARBOT with passive, active and active assisted range-of-motion exercises, resistive exercises in isometric, isotonic, isokinetic, elastic and fluid-dynamic conditions, and proprioceptive training. Control subjects were assisted by a physiotherapist during range of motion recovery exercises and performed resistive and proprioceptive training using Biodex System 3 dynamometer and ProKin PK254 mobile electronic platform.