1. The position and the amount of excursion of the diaphragm is affected by the shape of the chest.
2. In the case of a chest which is used in the position of expiration, the common one in faulty body mechanics, not only is the diaphragm in a lower position in the chest, but also there is less excursion.
3. In the case of a chest which is used in the position of good body mechanics, the diaphragm is in a higher position in the chest and there is a greater excursion of the diaphragm.
4. Accompanying these changes, there is also an improvement in the general condition of the patient as a whole,-an increase in weight, an increase in the vital capacity, and an improvement in the body mechanics.
(C) 1935 All Rights Reserved.The Journal of Bone and Joint Surgery, Inc.