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Shoulder girdle elevation during neurodynamic testing: an assessable sign?

One of the signs advocated for monitoring during neurodynamic testing in the assessment of patients with upper quadrant disorders, is the response of the shoulder girdle. It is stated that a protective rising of the shoulder girdle is present when patients with neurogenic disorders are assessed and that the elevation is absent in asymptomatic subjects. As sensory responses are elicited in the majority of asymptomatic subjects and as the range of motion (ROM) is often limited during neurodynamic testing, it is questionable whether the elevation of the shoulder girdle would be absent in asymptomatic subjects. The aim of this study was to measure the shoulder girdle elevation force during five variants of the neural tissue provocation test for the median nerve. Thirty-five asymptomatic male subjects were assessed. A load cell was used to measure the amount of shoulder girdle elevation force and two electrogoniometers were used to measure the ROM at the elbow and wrist. When the ROM at the end of the test was restricted, a gradual increase in shoulder girdle elevation force could be observed throughout the test. Compared to the initial force at the start of the test, all variants resulted in a significant increase in force. It is concluded that a gradual increase in shoulder girdle elevation force should not be regarded as an abnormal sign in the interpretation of neurodynamic tests.