After many intense years of training on an oval, Track & Field athletes often experience damage to the muscle and cartilage in their legs, particularly the outer leg. To study the effects of this “wear and tear” on the joints, we have designed a mouse track to model a standard olympic running track and allow gait imaging throughout exercise. The motorized lid allows a rubber hanging “wall” on top of the enclosed track to give a harmless stimulant and keep the mouse running without the use of electric shock. With this design, one would be able to acclimate mice to daily exercise over time using known convention techniques to help simulate the extended degradation in the legs; specifically comparing medial and lateral tissues through microCT imaging and histology. The moving wall is power dependent, thus enabling the mice to run at different speeds; whether in the acclimation phase or separated experimental groups. This unique design will enable research in the area of exercise and bone and joint health in a mouse model.