Passive biomechanical properties of human cadaveric levator ani muscle at low strains. Academic Article

abstract

• The objective of this study was to measure and model the passive biomechanics of cadaveric levator ani muscle in the fiber direction at low strains with a moderately slow deformation rate. Nine levator ani samples, extracted from female cadavers aged 64 to 96 years, underwent preconditioning and uniaxial biomechanical analysis on a tensile testing apparatus after the original width, thickness, and length were measured. The load extension data and measured dimensions were used to calculate stress-strain curves for each sample. The resulting stress-strain curves up to 10% strain were fit to four different constitutive models to determine which model was most appropriate for the data. A power-law model with two parameters was found to fit the data most accurately. Constitutive parameters did not correlate significantly with age in this study; this may be because all of the cadavers were postmenopausal.

authors

• Haridas, Balakrishna

published proceedings

• J Biomech

author list (cited authors)

• Nagle, A. S., Barker, M. A., Kleeman, S. D., Haridas, B., & Mast, T. D.

citation count

• 20

complete list of authors

• Nagle, Anna S||Barker, Matthew A||Kleeman, Steven D||Haridas, Balakrishna||Mast, T Douglas

publication date

• January 2014

publisher

• Elsevier  Publisher

published in

• Journal of Biomechanics  Journal

keywords

• Aged
• Biomechanical Phenomena
• Constitutive Model
• Female
• Humans
• Levator Ani Muscle
• Middle Aged
• Models, Biological
• Passive Behavior Of Skeletal Muscle Tissue
• Pelvic Floor
• Stress, Mechanical
• Uniaxial Extension

PubMed Central ID

• 24342498

Digital Object Identifier (DOI)

• 10.1016/j.jbiomech.2013.11.033

start page

• 583

end page

• 586

volume

• 47

issue

• 2

URL

• http%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.jbiomech.2013.11.033