A BRACE DEVICE FOR THE SPINAL SUPPORT OF A WEARER. THE BRACE DEVICE COMPRISES A PLURALITY OF COMPONENT PARTS, WITH EACH COMPONENT PART BEING MOVEABLE RELATIVE TO AT LEAST ONE OTHER COMPONENT PART, A MOVEMENT SENSING MEANS FOR MONITORING THE MOVEMENT OF THE WEARER AND/OR THE MOVEMENT OF ONE COMPONENT PARTS, WHICH IS CAPABLE OF GENERATING OUTPUT SIGNALS, A MOVEMENT RESISTING MEANS OPERABLE TO PROHIBIT, RESTRICT AND/OR RESIST MOVEMENT OF THE COMPONENT PARTS, AND A CONTROL MEANS IN COMMUNICATION WITH THE MOVEMENT SENSING MEANS AND THE MOVEMENT RESISTING MEANS PROGRAMMED TO INTERPRET AND/OR ANALYZE THE OUTPUT SIGNALS GENERATED BY THE MOVEMENT SENSING MEANS WITHIN PREDETERMINED PARAMETERS AND/OR CRITERIA. MOVEMENT RESISTING MEANS ARE ACTIVATED, DEACTIVATED OR DYNAMICALLY CONTROLLED IN RESPONSE TO SIGNALS RECEIVED FROM THE CONTROL MEANS