Fig. 6
The pictures show the five different virtual training environments designed and used in this study. a Opening a door by grasping and turning a doorhandle. b Holding a key to be inserted into a lock. c Puring balls from a cup into a bowl. d “Clean Sweep” task, known from Cybathlon 2020 [40]. e Box and blocks environment, where users can pick and place red blocks from one box to the other