Recently the same group presented a similar study 32 with the intention of establishing the role of the diaphragm in abdominal distension. The study compared healthy adults with patients who suffer from abdominal distension. After introducing gas into the bowels of the patients their abdominal circumferences were measured and the muscles of the abdominal wall and the diaphragm were evaluated electromyographically. Paradoxically, the study demonstrated that significantly greater distention results from contraction of the diaphragm and from internal oblique muscle relaxation 32.
Recientemente, el mismo grupo nos muestra otra experiencia similar 32 en la cual buscan establecer el papel de diafragma en la DA, y compara adultos sanos y pacientes con DA, a quienes se les realiza una carga de gas, valorando la circunferencia y electromiográficamente la musculatura de la pared abdominal y el diafragma, demostrando que los pacientes desarrollan significativamente más distensión con una contracción paradójica del diafragma y una relajación del músculo oblicuo interno 32.