The present subject matter relates to a cardio pulmonary resuscitation (CPR) device (102) including a backboard (110) to support a subject, and a constriction element (112) to constrict the subject. The constriction element (112) is connected to a decompression element (118). The decompression element (118) is disposed to be placed along the circumference of a thoracic region of the subject and is adapted to adhere to the subject on deployment. Further, a sternum compression unit (120) is attached to the decompression element (118) such that the sternum compression unit (120) is disposed on a side of the decompression element (118). Further, the constriction element (112) is adapted to be constricted and to be slackened for delivering active sternum compression, active circumferential compression, active sternum decompression and active circumferential decompression.
