The goal of this project is to develop a wearable sensing and computing system to monitor the direction, velocity, and acceleration involved in motions of a subject athlete.  Subsequently, the system would give feedback to the athlete to alarm her from engaging in risky motion patterns.  The first focus of work will be on the injury of the anterior cruciate ligament, which occurs frequently in athletes aged 14-19 years, and is eight times more likely in females than males.  Such a technology would assist in both preventing injuries and avoiding inappropriate activity patterns during the recovery period.  It could also lead to the development of several key components for other cyber-physical systems in the broader sports medicine area.  The project is being seed funded by CITRIS.