The gait analysis tests are mainly completed by a gait analysis system using the footprint bright refraction technology. In the gait analysis experiment, rodents walk from one side of the walking platform to the other. During the process, a high-speed camera located under the walking platform quickly captures the footprints of the experimental animals and the differences in foot pressure, allowing for a quantitative assessment of the rodents' locomotion by analyzing their footsteps and gait. Our company' gait analysis system software can process video data. We calculate various parameters based on the size, position, gait dynamics and pressure of each footstep of the experimental animal to provide qualitative and quantitative analysis of footsteps and gait for our customers.