Armrest for an interior of a motor vehicle and operating procedures for an armrest for an interior of a motor vehicle

The invention relates to an armrest (10) for an interior of a motor vehicle, with a backrest element (12) provided with an adjusting device (50) between a stowed position (40) and at least one position of use (30) is adjustable, wherein the adjustment device (50) at least one with a medium (20), particularly with air pressurizable chamber (14) through their filling or emptying, the backrest element (12) is movable between the stowed position (40) and the position of use (30). The invention also relates to a control method for an armrest (10).