Objective: When treating patients with functional disorders using a special manual technique, tissue changes can be felt by the therapist and the patient. This study was conducted to objectively document these changes.

Method: In the author's practice for body therapy, 30 patients were measured with high-frequency ultrasound (22MHz) immediately before and after their first treatment in the area where they experienced pain or other discomfort and/or movement restriction.

Results: Highly significant differences can be seen in the structure of the collagen matrix in the dermis before and after treatment. These changes reflect the differences in tension, softness and regularity, which can be palpated before and after treatment and are thought to be caused by changes in the mechanical forces of fibroblasts and increased microcirculation.