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A Mechanistic Study for Strain Rate Sensitivity of Rabbit Patellar Tendon by John Clemmer; Jun Liao; Debbie Davis; Mark F. Horstemeyer; Lakiesha N. Williams is a Medicine article available to read on EtoBox.

What is A Mechanistic Study for Strain Rate Sensitivity of Rabbit Patellar Tendon about?

The ultrastructural mechanism for strain rate sensitivity of collagenous tissue has not been well studied at the collagen fibril level. Our objective is to reveal the mechanistic contribution of tendon's key structural component to strain rate sensitivity. We have investigated the structure of the collagen fibril undergoing tension at different strain rates. Tendon fascicles were pulled and fixed within the linear region (12% local tissue strain) at multiple strain rates. Although samples were pulled to the same percent elongation, the fibrils were noticed to elongate differently, increasing with strain rate. For the 0.1, 10, and 70%/s strain rates, there were 1.84 7 3.6%, 5.5 7 1.9%, and 7.03 7 2.2% elongations (mean 7S.D.), respectively. We concluded that the collagen fibrils underwent significantly greater recruitment (fibril strain relative to global tissue strain) at higher strain rates. A better understanding of tendon mechanisms at lower hierarchical levels would help establish a basis for future development of constitutive models and assist in tissue replacement design.

Who reads A Mechanistic Study for Strain Rate Sensitivity of Rabbit Patellar Tendon?

Author

John Clemmer; Jun Liao; Debbie Davis; Mark F. Horstemeyer; Lakiesha N. Williams

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0021-9290)

Published

2010

Language

EN

Field

Medicine (Health Sciences)