Abstract: The invention concerns an orthosis (10) for stabilizing the position of the scapula (3) at least during a lateral movement of an arm (8) related to the scapula (3), comprising a torso fixation means (20), in particular a harness, fixable to the torso (2) of a person (1), and a pressure element (30) in a translational and/or pivotable way coupled to the torso fixation means (20) for applying a normal pressure force onto the scapula (3), as well as an arm fixation means (40) fixable to the arm (8), in particular to the upper arm, of the person (1), wherein the arm fixation means (40) is connected to the pressure element (30) by means of a coupling device (50) and wherein the position of connection (51) of the coupling device (50) to the pressure element (30) is realized in a distance h1 to the position of coupling (31) between the pressure element (30) and the torso fixation means (20), such that a movement of the arm (8), in particular a lifting movement (401), of a person (1) attached to the orthosis (10) is