What causes that audible crack during a spinal adjustment? This is a targeted thoracic spine mobilization. By applying a specific rotational force through the upper arm and shoulder girdle, we create space in the costovertebral joints, resulting in cavitation as gas is released from synovial fluid. Send this to someone who needs to release their upper back tension. 🧘 #wellness #posture #selfcare #education #chiropracticadjustment #thoracicmobility #osteopathy #physicaltherapy #backcrack #jointmobilization #manualtherapy #bodywork