NIÑOS DE Y ABUELACopia digital. Madrid : Ministerio de Educación, Cultura y Deporte, 201

C Wei

CT John

D Chaffin

DG Thelen

DJ Pearsall

H Okada

HC Lukaski

HK Kim

JL Durkin

MK Lee

P Leva De

PL Davidson

SL Delp

Undetermined

Gómez Bosch, Tomás, 1883-1980

Biblioteca Virtual del Patrimonio Bibliográfico (Virtual Library of Bibliographical Heritage)

GUILLÉN HERNÁNDEZ [Material gráfico]

Jing Chang

Damien Chablat

Fouad Bennis

Liang Ma

Crossref

Using 3D Scan to Determine Human Body Segment Mass in OpenSim Model

International audienceBiomechanical motion simulation and dynamic analysis of human joint moments will provide insights into Musculoskeletal Disorders. As one of the mainstream simulation tools, OpenSim uses proportional scaling to specify model segment masses to the simulated subject, which may bring about errors. This study aims at estimating the errors caused by the specifying method used in OpenSim as well as the influence of these errors on dynamic analysis. A 3D scan is used to construct subject's 3D geometric model, according to which segment masses are determined. The determined segment masses data is taken as the yardstick to assess the errors of OpenSim scaled model. Then influence of these errors on the dynamic calculation is evaluated in the simulation of a motion in which the subject walks in an ordinary gait. Result shows that the mass error in one segment can be as large as 5.31\% of overall body weight. The mean influence on calculated joint moment varies from 0.68\% to 12.68\% in 18 joints. In conclusion, a careful specification of segment masses will increase the accuracy of the dynamic simulation. As far as estimating human segment masses, the use of segment volume and density data can be an economical choice apart from referring to population mass distribution data

GUILLÉN HERNÁNDEZ [Material gráfico]

Abstract

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Biblioteca Virtual del Patrimonio Bibliográfico (Virtual Library of Bibliographical Heritage)

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HAL-Univ-Nantes