The object of the invention is a foot portion (2a) of a medical device, such as gynecological examination bed or a birthing bed. The aim of the invention is to provide a method for moving the foot portion into the required position quickly, effectively and not limiting the actions of medical personnel. An advantage of the present invention is moving the foot portion under the rest area (1) without undesirable protrusion. Movement of the foot portion (2a) under the rest area (1) is performed around a column (5), which is attached under the side edge of a seating portion (3). Such arrangement of the column leaves free space under the rest area (1) for moving the foot portion (2a). Movement of the foot portion (2a) is performed with minimum protrusion over the borderline of the rest area (1) by means of a parallelogram. The foot portion according to the present invention may be also positioned horizontally and vertically, according to the patient's need during the procedure. For each movement, there are available separate moving mechanisms and latching mechanisms.