It works by applying gentle pressure to a small area with an impulse force, and can be viewed as an alternative method to the traditional manual back adjustments associated with the profession. The Activator Adjusting Instrument is one of the most important tools in a chiropractor’s repertoire. This helps evaluate the pain in the patient, and also treat it by bringing motion back to the affected area. When using the Activator Method Chiropractic Technique, chiropractors will use a tool called an Activator Adjusting Instrument. BREAKING DOWN – Activator Method Chiropractic Technique The activator method chiropractic technique is a diagnostic system commonly used by chiropractors to assess pain in the back, neck, and head, including headaches. DEFINE – What is the Activator Method Chiropractic Technique?