Scapulothoracic joint may have a role in shoulder complex extension and addition of scapular movements to glenohumeral joint may increase the total shoulder complex range. 79 healthy subjects (20 males, 59 females) were enrolled for the study. On first day shoulder complex extension range of motion was measured and on day two glenohumeral extension range of motion was measured. For both the measurements three trials were done and best of them was used for further analysis. Scapular contribution was calculated by subtracting glenohumeral extension from shoulder complex extension range of motion. Paired t test was applied to compare the differences between means of glenohumeral and shoulder complex extension angles. The results of the present study showed glenohumeral extension to be 34.92 ±9.66 (mean±SD), shoulder complex extension 55.20 ± 11.30 (mean±SD) and scapular contribution 20.27± 8.50 (mean±SD). Results of our study show shoulder complex extension is significantly higher than glenohumeral extension.