The brachioradialis runs from the lower, front part of the upper arm, across the elbow to the middle of the forearm. It flexes the forearm at the elbow. It is also capable of both pronation and supination, depending on the position of the forearm. Brachioradialis trigger points do not happen in isolation and are part of a pattern that includes the hand extensors and arm flexors.

Pain from brachioradialis trigger points often originates on the outside of the forearm, near the elbow, and then progresses down the arm toward the base and web of the thumb.