Though much effort is directed to the repair of these fractures, the biomechanical cause is not fully understood. Insight into the mechanism behind vertebral fracture development would make diagnosis, treatment, and prevention achievable and more effective. Specifically, using tools such as a 6DOF robotic arm (KUKA) and a 6DOF force/torque transducer (ATI), we are able to apply different loading regimes and to examine the change in stiffness and strength of vertebral bodies. (Wafa Tawackoli)