This 54 year-old man sustained a severe hip injury ten years earlier, while performing strenuous labor. At that time, he experienced debilitating low back, hip, and sciatic pain for several months. Chiropractic treatment gave him no relief. He eventually healed the injury, but retained a dull aching-pulling sensation in an undefined area of his hip and groin, which never responded to massage. For ten years, he feared a relapse of the original pain.
His session was a simple procedure of relaxation and building of sensation in the injury site, followed by sudden discharge of pain and tension. After the session, he felt no pulling sensation in the injury site. When questioned several months later, he reported that he had injured himself slightly since his session, in roughly the same spot, but the injury had healed normally in a few days, without residual sensation. He still had no pain from the first injury.
This subject may always be extra vulnerable to soft tissue tears in that original injury site. Internal scar tissue can restrict movement, subjecting muscle fibers to strain and microscopic tears, which collect more scar tissue. Scar tissue thus becomes a type of permanent structural damage. Also, restricted movement can irritate the area, provoking a local stress response and pain. Theoretically, reduction of chronic muscle tension, via discharge of the injury memory, would render soft tissues more pliable and less vulnerable to further injury.
This case demonstrates the obvious advantage of inviting the body to perform its own, internal manipulations. If we had attempted manual soft tissue manipulation, it may have been difficult to locate and remedy the affected area. The same advantage exists when addressing pathology inside cavities, such as the abdomen, knee, or cranium.