Biomechanical properties of isolated fascicles of the Iliopsoas and Achilles tendons in African American and Caucasian men

Annals of Anatomy = Anatomischer Anzeiger : Official Organ of the Anatomische Gesellschaft
P HansonS P Magnusson

Abstract

To investigate biomechanical properties of the Iliopsoas and Achilles tendons in young African American (AA) and Caucasian (CC) men, and attempt to clarify whether the difference in Achilles tendon ruptures between AA and CC can be explained by differences in material properties. Tissue from 12 young males (AA, n=6; CC, n=6) was obtained from routine forensic autopsies. Iliopsoas and Achilles tendon samples were obtained from cadavers that were age, height and weight matched. Tendon collagen fascicles were tested micromechanically in a Deben mechanical testing rig. Peak failure stress in Iliopsoas tendon fascicles was considerably higher (p<0.05) in AA (22.4 ± 7.2MPa) than CC (6.8 ± 2.1MPa) whereas peak strain did not differ (AA: 19.7 ± 5.2%, CC: 18.3 ± 3.5%). Likewise, Young's modulus was greater (p<0.05) in AA (165.3 ± 67.3MPa) than CC (63.6 ± 23.6MPa). In contrast, peak failure stress in Achilles tendon fascicles was similar (p>0.1) in AA (21.9 ± 9.9MPa) and CC (28.1 ± 9.8MPa), and peak strain did not differ (p>0.1) between AA (16.3 ± 3.5%) and CC (13.8 ± 4.4%). Young's modulus was slightly greater in CC (316.8 ± 110MPa) than AA (222.8 ± 84.6MPa), yet not significantly (p>0.1). These findings indicate that Iliopsoas tendon f...Continue Reading

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Citations

Mar 2, 2016·Geriatric Orthopaedic Surgery & Rehabilitation·Manolo RubioPeter Wang
May 10, 2019·Biofabrication·Alberto SensiniLuca Cristofolini
Apr 24, 2021·Frontiers in Bioengineering and Biotechnology·Alberto SensiniLuca Cristofolini
Jun 5, 2021·Materials Science & Engineering. C, Materials for Biological Applications·Shaohua WuShaojuan Chen

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