The following link leads to the webpage of the DLR with a video clip showing a subject walking with HEPHAISTOS (http://www.dlr.de/me/en/desktopdefault.aspx/tabid-7389/). The 11 subjects began the intervention in a staggered order, with three subjects per day over 4 days. Throughout the intervention subjects had to wear HEPHAISTOS during all locomotive activities that required loading of the legs. During this time subjects had to visit the DLR at least once a week for routine examinations, for measurements or for a weekly report. Table 2 depicts the time course of the entire study for one subject including all measurements and events.