Assessment of scapulohumeral rhythm for scapular plane shoulder elevation using a modified digital inclinometer

Figure 1 Modified digital inclinometer (A) and scapular upward rotation measurement (B).

Figure 2 Scapulohumeral rhythm for 15 shoulder elevation increments (A) and 30 degree shoulder elevation Increments (B). Shoulder elevation increments represent degrees of shoulder elevation in the scapular plane. Values listed in the figure represents degrees of glenohumeral motion for every 1^o of scapular upward rotation.

Figure 3 Glenohumeral and scapular upward rotation contributions to shoulder elevation.