The documentation of Breathing Coordination, showing the human diaphragm in motion, was achieved by a process of X-ray on film called cinefluorography. It also documents how it is possible to develop the diaphragm, showing its change in structure and increased excursion. It is this achievement that makes it possible to correct respiratory faults, abnormalities of the ribcage, such as a sternal angle, barrel chest and flared lower ribs.
Before the Stoughs isolated and identified the physiological principles governing the mechanical function of the respiratory system, no absolute standard for the mechanics of respiration had been described in the history of medicine. The concept altered conventional thought on respiration.
The major contributions Carl Stough made during the years of medical research are:
The body is designed in a particular way to move air out of and into the lungs (Breathing Coordination).