quote:

  "stabilization of the forequarter on the chest wall [is] commonly associated with a strong sustained inspiration…[this action will] bring the scalenius medius into action to stabilize the first rib and the thoracic cage…[therefore] there is a liability to trapping of the nerve to the serratus at or near its point of emergence from the muscle". Certainly in our experience, strenuous upper extremity activity or a history of lifting heavy weights is present in most patients. Two patients had a specific history of direct compression of the supraclavicular fossa during deep massage treatments with associated pain and paresthesia during treatment.