An integrative modeling approach for the efficient estimation of cross sectional tibial stresses during locomotion

Journal of Biomechanics
Timothy R DerrickJoseph F Seay

Abstract

The purpose of this research was to utilize a series of models to estimate the stress in a cross section of the tibia, located 62% from the proximal end, during walking. Twenty-eight male, active duty soldiers walked on an instrumented treadmill while external force data and kinematics were recorded. A rigid body model was used to estimate joint moments and reaction forces. A musculoskeletal model was used to gather muscle length, muscle velocity, moment arm and orientation information. Optimization procedures were used to estimate muscle forces and finally internal bone forces and moments were applied to an inhomogeneous, subject specific bone model obtained from CT scans to estimate stress in the bone cross section. Validity was assessed by comparison to stresses calculated from strain gage data in the literature and sensitivity was investigated using two simplified versions of the bone model-a homogeneous model and an ellipse approximation. Peak compressive stress occurred on the posterior aspect of the cross section (-47.5 ± 14.9 MPa). Peak tensile stress occurred on the anterior aspect (27.0 ± 11.7 MPa) while the location of peak shear was variable between subjects (7.2 ± 2.4 MPa). Peak compressive, tensile and shear stres...Continue Reading

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Citations

Feb 14, 2017·PloS One·Martin HoraVladimír Sládek
Dec 29, 2017·Journal of Applied Biomechanics·Chen DengTimothy R Derrick
Oct 29, 2017·Journal of Biomechanical Engineering·Lindsay L LoundaginW Brent Edwards
Oct 22, 2019·Medicine and Science in Sports and Exercise·Hannah RiceJoseph Hamill
Aug 7, 2020·Scandinavian Journal of Medicine & Science in Sports·Hannah M RiceJoseph Hamill
Apr 29, 2018·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Clare E MilnerJohn D Willson
Feb 27, 2021·Current Osteoporosis Reports·Thomas J O'LearyJulie P Greeves
Jun 3, 2021·The American Journal of Sports Medicine·Stacey A MeardonRichard W Willy
Jul 29, 2021·Journal of Biomechanical Engineering·Michael BaggaleyW Brent Edwards

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