Reportage in a rehabilitation centre in Germany, specialising in neurological rehabilitation after a stroke or head injury. The centre is equipped with a number of robotic technologies which facilitate exercises. A patient who is paralysed in both legs uses the Space Curl technology with a physiotherapist. The Space Curl was developed by NASA and is the only tridimensional therapy system in the world. It improves coordination, balance and posture in patients suffering from neurological disorders.