The Activator Method Chiropractic Technique is the most widely used instrument adjusting technique in the world. The Activator technique has been in existence for almost 50 years. The adjusting protocol uses specific diagnostic tests to identify the specific location of the subluxation. The technique shows where to adjust, when to adjust and when not to adjust. The latest adjusting instrument, the Activator 5, is a significant improvement. Research shows the Activator 5 delivers a more complete and measurable adjustment. The instrument delivers a thrust at 1/1000 of a second, many times faster than a manual adjustment. This allows the adjustment to be delivered safely without the patient tensing in anticipation. The instrument is also used to adjust extremities such as feet and ankles, elbows and wrists, scapula and shoulders. The protocol allows for retesting after the adjustment to make sure changes have been made.