Spinal Manipulation delivered by a licensed Physical Therapy is different from a Chiropractor and their treatment. The licensed therapist will provide a rapid impulse or thrust in order to achieve a separation of the target joint. There is usually an audible release (most heard as a cracking or popping sound) that accompanies the joint manipulation. Spinal manipulation is beneficial for facilitating movement, relieving pain, increasing circulation, relaxing muscles, and improving the overall function of muscles.