Biomechanical properties of oesophagus wall under loading

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)

Abstract

In this investigation, firstly, the biomechanical properties of different parts of oesophagus were determined. Oesophagus stress and strain are the greatest in the cervical part for all age groups. The human oesophagus deforms unevenly, depending on the direction of load in relation to the organ's axis, it exhibits anisotropical behaviour. With the age the values of mechanical parameters of the oesophagus wall reduce, in particular beginning from 45 years of age, but the modulus of elasticity increases. Biomechanical properties of the oesophagus depend on the architecture of its structure. By loading the organ in the circumferential direction, microfibrilae rupture and deformation of the muscular fibres occurs. With increase of load, collagenous fibres straighten and microruptures in collagenous fibrilae occur. With stretching of oesophagus longitudinally, collagenous fibres partially preserve their wavy and helical configuration. Therefore, higher resistance of the oesophageal wall occurs in the longitudinal direction.

Original languageEnglish
Pages (from-to)1387-1390
Number of pages4
JournalJournal of Biomechanics
Volume36
Issue number9
DOIs
Publication statusPublished - 1 Sep 2003
Externally publishedYes

Keywords*

  • Modulus of elasticity
  • Oesophagus strength
  • Stress and strain
  • Structure

Field of Science*

  • 3.1 Basic medicine
  • 3.2 Clinical medicine

Publication Type*

  • 1.1. Scientific article indexed in Web of Science and/or Scopus database

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