Abdominothoracic Postural Tone Influences the Sensations Induced by Meal Ingestion
Livovsky, Dan M. (Hebrew University of Jerusalem)
Barber Caselles, Claudia (Hospital Universitari Vall d'Hebron)
Barba Orozco, Elizabeth (Hospital Clínic i Provincial de Barcelona)
Accarino, Ana María (Hospital Universitari Vall d'Hebron)
Azpiroz Vidaur, Fernando (Hospital Universitari Vall d'Hebron)
Universitat Autònoma de Barcelona

Date:	2021
Abstract:	Postprandial objective abdominal distention is frequently associated with a subjective sensation of abdominal bloating, but the relation between both complaints is unknown. While the bloating sensation has a visceral origin, abdominal distention is a behavioral somatic response, involving contraction and descent of the diaphragm with protrusion of the anterior abdominal wall. Our aim was to determine whether abdominal distention influences digestive sensations. In 16 healthy women we investigated the effect of intentional abdominal distention on experimentally induced bloating sensation (by a meal overload). Participants were first taught to produce diaphragmatic contraction and visible abdominal distention. After a meal overload, sensations of bloating (0 to 10) and digestive well-being (-5 to + 5) were measured during 30-s. maneuvers alternating diaphragmatic contraction and diaphragmatic relaxation. Compared to diaphragmatic relaxation, diaphragmatic contraction was associated with diaphragmatic descent (by 21 + 3 mm; p < 0. 001), objective abdominal distension (32 + 5 mm girth increase; p = 0. 001), more intense sensation of bloating (7. 3 + 0. 4 vs. 8. 0 + 0. 4 score; p = 0. 010) and lower digestive well-being (-0. 9 + 0. 5 vs. -1. 9 + 0. 5 score; p = 0. 028). These results indicate that somatic postural tone underlying abdominal distention worsens the perception of visceral sensations (ClinicalTrials. gov ID: NCT04691882).
Grants:	Ministerio de Economía y Competitividad SAF-2016-76648-R
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Meal ingestion ; Postprandial responses ; Hedonic sensations ; Homeostatic sensations ; Abdominal wall activity ; Abdominal distension
Published in:	Nutrients, Vol. 13 (february 2021) , ISSN 2072-6643

DOI: 10.3390/nu13020658
PMID: 33670508

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