**5.4 Thoracic joint mobilization (Figure 13)**

From the biomechanics of chest movement, vertebral joints connect to the ribs and sternum with a complex unit that promotes chest expansion. Although this movement is very hard to observe, it also is very effective for ventilation. Therefore, this joint movement is promoted for improving ventilation (Vibekk, 1991).

Fig. 13. Mobilization of the facet joint by flexion and extension (Vibekk, 1991), direct rib stretching at the supine lying (left above), facet joint (right above), and costovertebral joint (below).
