"Thanks to our results, patients can now be treated more specifically after a stroke in the areas where their weaknesses are evident," says Professor Hermsdörfer. Custom-developed devices were used for the tests, including the "Gripforce Box", with which the grip force of the hand is examined (see video -- start by button in the article photo in the upper left corner). In future, this could be further developed for therapists so that they can be used for the purpose of diagnosing the status quo of individual deficits following a stroke. "We are still working on this," the movement scientist explains. "Along with two short classical tests, the future goal is to be able to make a precise diagnosis regarding the background of fine motor deficits in stroke patients in everyday life with the GF Box."