A biokinetic analysis system is used to analyze the movement of a human subject, and coordinate the foot motion with the body motion. The subject walks upon an instrumented walkway, and sensors detect pressure of the subject feet. A 3D camera is aligned with a target on the walkway, and captures movement of the subject body toward the camera. The camera lenses are spaced apart vertically. Data from the walkway and data from the camera are captured simultaneously, and sent to a computer to analyze and store. Electrical power is supplied alternately by an electrical storage battery, or a photovoltaic module, or the grid. A unitary interface module electrically connects conductors to the battery, the photovoltaic module, the walkway, the camera, and the computer. The unitary interface module also digitally connects the walkway, the camera, and the computer, conveying power and data simultaneously. A transport case is provided.