Fig. 3. The available range of elbow extension for the different tests. For each of the three shoulder positions, the four test variations were grouped. The difference between the top and middle lines shows the significant impact of shoulder girdle fixation. The difference between the middle and lowest lines shows the significant impact of lateral rotation of the shoulder. Differences in range of motion between the test variations within the same shoulder position have been labeled: S = significant (P < 0.05); NS = nonsignificant. BPTT =brachial plexus tension test; NEUTRAL = with the wrist and cervical spine in a neutral position; WE = wrist extension; CCLF = cervical contralateral lateral flexion (fig. 1). A, B, and C correspond with the shoulder positions shown in figure 2.