Abstract: An adjustable chair as a seat, a backrest pivoted on the seat for movement between an erect and an reclined position, and a leg rest mounted on the seat for movement between a retracted and an extended position. The seat is mounted on lateral portions of a frame for pivoting so that the angular position of the backrest relative to the frame may be changed either by pivoting the backrest relative to the seat, or by pivoting the seat relative to the frame. A damping arrangement damps the movement of the backrest relative to the frame at least between some of the angular positions of the backrest, and an arresting arrangement including interengaging teeth is accommodated in an armrest pivoted on the backrest, which arrangement permits arresting the backrest in a selected one of the angular positions thereof.