Abstract: A vehicle seat has a seat surface and a backrest. At least one training apparatus for training at least one muscle area of the torso and/or of the arms of a person using the vehicle seat is integrated into the backrest.

Abstract: The invention relates to a display device for a vehicle comprising a display for representing application data to a vehicle user and pivoting means for moving the display between at least two positions. The inventive display device is characterized in that it further comprises checking means for checking whether or not the representation of data of an application selected by the vehicle user is permitted in the actual state of the vehicle; release means in order to release the pivoting means for controlling the display according to the application or any application selected by the vehicle user, in case the checking means emits an affirmative signal.