Duration and intensity of use of the affected arm-hand did not change significantly during and after training , with or without robot-support ( i.e. duration of use of unimanual use of the affected arm-hand : median difference of -@ % in the robot-group and -@ % in the control group between baseline and after training cessation ; intensity of the affected arm-hand : median difference of @ % in the robot-group and @ % in the control group between baseline and after training cessation ) .