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Strength properties of the human aorta and their variation with age

  • Biomechanics
  • Published:
Polymer Mechanics Aims and scope

Conclusions

1. The strength of the aorta wall in a direction transverse to the vessel axis exceeds the strength in the longitudinal direction by on average a factor of 1.9 in the thoracic and 1.8 in the abdominal sections.

2. The strength of the wall of the thoracic aorta is greater than that of the abdominal aorta. The differences between the strength characteristics of the aortal wall in the transverse direction are statistically reliable (up to 8th decade of life).

3. As the organism ages, the strength of the walls of the thoracic and abdominal aortas decreases in the longitudinal and transverse directions. This is indicated by the close inverse correlation between σ1, σ2 and age.

4. The strength of the aorta wall changes according to the period or stage of life. In each stage it is approximated by an exponential function.

5. The rate of decrease of the strength of the wall is less in the transverse than in the longitudinal direction during the initial or evolutive stage of life.

6. The decrease in strength (according to the criteria β, ϑ, ℵ) indicates more rapid aging of the tissues of the abdominal (relative to the thoracic) aorta. This difference appears after the age of 40 in the transverse and 50 in the longitudinal direction of the aorta wall.

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Literature cited

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Authors
  1. N. S. Khamin
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Additional information

Chita State Medical Institute. Translated from Mekhanika Polimerov, No. 1, pp. 104–108, January–February, 1977.

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Khamin, N.S. Strength properties of the human aorta and their variation with age. Polymer Mechanics 13, 100–104 (1977). https://doi.org/10.1007/BF00857286

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  • DOI: https://doi.org/10.1007/BF00857286

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