Saskia Baltrusch

191 Chapter 7 Figure 7: Negative and positive work at the knee joint (a), hip joint (b) and L5S1 joint (c) over one lifting cycle, with and without the exoskeleton, averaged over all participants. N=8. Error bars indicate standard deviations. Black lines indicate individual responses. “unloaded” refers to bending down and coming up without the box. “loaded” refers to picking up and putting down the box. The exoskeleton condition in b and c also shows the work generated by the exoskeleton (exowork) and the work generated by the muscles (muswork). * Significant change in work generated by the muscles (muswork) between control condition (without) and exoskeleton condition (with). 7