Background Serious games have recently immerged as a good tool for physical
rehabilitation. This new technology can be used at home, to complement a traditional, clinic
based, rehabilitation program. To implement a serious game at home, we need to use
multiple sensors to record patients' data. Many serious games use visual motion capture
techniques, like the Kinect camera, due to their low price and high portability. On the other
hand, some other systems use inertial sensors to collect data at a higher degree of accuracy …