Three-dimensional computerized gait analysis allows a more objective assessment of gait disorders . Computerized gait analysis covers kinematics analysis and kinetic analysis; dynamic EMG graphs include time and distance parameters. Joint kinematics graphs provide objective assessment of the patient ambulatory patterns, and allow differentiation between the primary pathologies and compensatory mechanisms which develop secondary to these primary pathologies. Joint kinetics graphs provide information about the mechanisms that produce movement. With the computed gait analysis, treatment algorithms can be identified, and effectiveness of the treatment of the neuromuscular diseases with gait abnormalities can be evaluated. Nowadays, computerized gait analysis in clinical practice is becoming increasingly popular. In this review; normal gait cycle, three-dimensional computerized gait analysis system, and the data obtained with this system are described.