Abstract: An apparatus for use in analyzing the motion of a human subject including a platform upon which the subject stands. The platform may include force sensors arranged to measure forces exerted on the platform by the subject in three dimensions (along X, Y and Z axes) and a pressure sensitive mat arranged to collect pressure data relating to the position of each foot of the subject on the platform. The apparatus outputs the force and pressure data to a computer having software for determining information relating to the motion of the subject, such as torque and angular momentum around different axes, using both the force and pressure data. In a golfing scenario, the apparatus can be used to analyze the motion of a subject whilst making a golf swing.