The patient is placed in a comfortable position lying on its side. Position your body so that you are behind the back limbs. To obtain complete range of motion of the hock joint, it is necessary to flex the stifle joint as completely as possible, while maintaining patient comfort. To perform the passive movement, the upper hand is placed on the lower portion of the shin. Place the other hand on the back portion of the foot. Be certain that the hock joint is supported to avoid any undue stress to the joint. Begin by slowly and gently flexing the hock joint. The hip joint should remain in a neutral position (a position as if the animal were standing), but the stifle joint should remain in a flexed position. Next, extend it.Slowly continue to move the joint without causing undue discomfort.