Over the next twenty-six years, Ersdal devoted his life to the study of anatomy and physiology, and through further inspiration he discovered additional signals and developed treatments on the feet relating to all of the major organs and systems in the body which had not been used with reflexology. He treated thousands of patients in clinical studies with a myriad of conditions, developing over a hundred pathology charts relating to the zone. But before charting anything, he verified these acupressure points on hundreds of patients to assure accuracy of his charts.
Dr. Ersdal was convinced by his research and inspiration that the body needed to be treated in its entirety. This assertion went against just treating the symptomatic areas, which was the main focus of reflexology at that time. Ersdal named his technique Foot Zone Therapy. He opened the Center for Alternative Medicine in Kristiansand, Norway. Because of his life’s work, Dr. Ersdal and his Foot Zone Therapy method became famous in Europe and throughout the world. Over the past 20 years, reflexology charts have evolved to more closely resemble Dr. Ersdal’s Foot Zone Therapy charts which included all sides of the feet, and lower part of the legs.






















