Anorectal volume–pressure relations, contraction work, and flow during defecation

• Published in: Biomechanics and modeling in mechanobiology Vol. 21; no. 5; pp. 1613 - 1621
• Main Authors: Gregersen, Hans, Wang, Yanmin, Field, Fred, Wang, Mengjun, Lo, Kar Man, Guo, Xiaomei, Combs, William, Kassab, Ghassan S.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.10.2022; Springer Nature B.V
• Subjects: Anorectal; Biological and Medical Physics; Biomedical Engineering and Bioengineering; Biophysics; Channels; Defecation; Engineering; Expulsion; Isometric; Maximum flow; Muscle contraction; Original Paper; Pathophysiology; Pressure; Pressure sensors; Theoretical and Applied Mechanics; Pressure–volume; Fecobionics; Contraction work; Defecatory; Anorectal function; Flow

Fecobionics is an integrated device that has shown promise for assessment of anorectal function. We used a wireless Fecobionics prototype to visualize defecatory patterns and to compute volume–pressure, contraction work, and flow. Twelve normal subjects were studied. The probe was 10 cm-long and con...