Factors Affecting in vivo SH and SV Mode Wave Propagation in vastus lateralis Muscle at Varying Knee Flexion Angles Using Ultrasonic Rotational 3D SWEI

Conference Paper

We previously have demonstrated the use of ultrasonic rotational 3D SWEI to measure all three mechanical properties necessary to fully characterize the vastus lateralis muscle in vivo as an incompressible transversely isotropic material: transverse shear modulusmu_{T}, longitudinal shear modulusmu_{L}, and tensile anisotropychi_{E}. In this work we investigate how varying knee flexion angle affects the mechanical properties of the vastus lateralis. As knee flexion angle increased, mu_{L}, \chi_{E}, andchi_((_{L}-_{T})/_{T}) all increased, whilemu_{T} remained consistent across knee angles. At all nine knee flexion angles investigated in a healthy volunteerchi_{E} >chi_, indicating that these are independent parameters.

Full Text

Duke Authors

Cited Authors

  • Knight, AE; Trutna, CA; Jin, FQ; Rouze, NC; Pietrosimone, LS; Hobson-Webb, LD; Toth, AP; Palmeri, ML; Nightingale, KR

Published Date

  • January 1, 2021

Published In

Electronic International Standard Serial Number (EISSN)

  • 1948-5727

International Standard Serial Number (ISSN)

  • 1948-5719

Digital Object Identifier (DOI)

  • 10.1109/IUS52206.2021.9593455

Citation Source

  • Scopus