In the Activator Adjusting Technique (also known as the instrument-assisted adjusting technique) chiropractors use a small, spring-loaded, hand-held instrument to deliver a shallow, gentle, targeted impulse to the area of complaint, with the goal of restoring motion to the joint. This approach can be used for joints of the spine and extremities (shoulders, ribs, pelvis, wrists, etc.). Instrument-assisted adjusting is an alternative to manual adjusting, and can be utilized in cases where patients prefer a lower-force adjustment.