The invention is a device for exercising a pet. One embodiment of the invention is a combination of a treadmill and control configured to motivate a pet to use the treadmill responsive to motivation provided to the pet in the form of visual, audio, aromatic, and/or food rewards. Another embodiment of the invention is a device having a motivation control system configured to be secured to and/or adjacent to a separate treadmill, with the device controlling operation of the treadmill and the motivational control system providing appropriate motivation to the pet to use the treadmill.