The invention relates to new dynamic back-bending-bench to be used in physiotherapeutic treatment of patients having spinal disorders providing incremental passive spinal extension in human body and also used in physiotherapeutic exercise done by healthy individuals for maintain spinal flexibility therof. Owing to the fixed structure of the existing back-bending-bench, assistance of other persons is required by the therapist to provide small incremental extensions needed by the physically impaired patient, which cannot be done by the patient himself. This makes the treatment more laborious and expensive. The present invention of new dynamic backbending-bench does not have one fixed structure. Instead, different shapes of top surface-profiles giving incremental modifications can be created by using plurality of mechanical linkages, flats, platforms, and horizontal and vertical linear actuators. Thus the physically impaired patient can be easily provided with small incremental extensions to the back-bone of the patient, by the physiotherapist.
