Movement restraining device (1) for partially immobilizing a body joint (10) facilitating rotation of a body part (20) about a joint axis (40). The device comprises a) a first stopper element (50) having an abutment surface (70)； b) a second stopper element (60), comprising an abutting surface (100), pivotable, relative to the first stopper element. The second stopper element can be pivoted into an abutting pivot position, in which position the abutting surface is in surface contact with the abutment surface； c) skin attachment means (90) for attaching the stopper elements to skin at the body joint； and d) electrical contact elements (310, 320), connectable to an indicator device for providing an indication when the contact elements are in electrical contact with each other. The first contact element can be brought into electrical contact with the second contact element by pivoting the second stopper element into the abutting pivot position.
