Some robots can create an additional clinical benefit in the rehabilitation of stroke patients as a supplement to standard therapy. For another method, the functional electrical stimulation of individual muscles or muscle groups, such an additional benefit cannot beproven. These are the results of a study based on scientific evidence that the Austrian Institute for Health Technology Assessment (AIHTA) conducted together with a German guideline working group and has now published. After a critical analysis of over 53 studies, the AIHTA therefore recommends a health economic evaluation before the use of these supplemental therapy options.