This research project is to formulate and develop model definition and data gathering methods sufficient to analyze the kinematics and motion kinematics of a crawling child's limbs and torso system. These data and model will be used as design concepts and procedures in the analysis and the development of a robot system consisting of dual-manipulator arms equivalent to the hip-knee leg and shoulder-elbow-wrist hand subsystems of the child, and a stewart Platform with full six degrees of freedom, which models the child's torso.