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Behavior under Load of A Human Shoulder: Finite Element Simulation and Analysis

  • Education & Training
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Abstract

Most musculoskeletal injuries occur during the work routines in different areas, due to repetitive and sustained movements, they are often located in the shoulder. For workers in the building sector, the repetitive movements and displacements occur under load and unnatural postures of the shoulder joint. For this reason, this study aims to model in 3D the biological components which form the shoulder joint for the later finite element analysis. Three cases with different loads have been considered for this study. Due to a linear and isotropic joint approach it has been possible to evaluate the tensions in the main components of the shoulders: muscles, tendons and ligaments. The methodology used allowed obtaining an improved mesh of the shoulder joint to analyse real situations with finite element method analysis with applications in the field of sports medicine, work, etc. Furthermore, the simplification adopted for modelling the joint muscles, as 1D elements in the finite element model has made it possible to establish different positions of human joint without mesh again each of the studied positions. The results are consistent with the states of applied loads. In fact, the maximum stresses in bones are in the insertion areas of the ligaments. Due to the static positions of the joint under study, the muscles do not support high stresses. According to the stresses distribution, the maximum values are in the zones of tendons. From the result analysis, it is observed how the stresses distribution in the cartilage area maintains coherence with reality since the maximum stresses appear in the lower half of the cartilage. In this area in which the Humerus-scapula contact is greater, the compression tensions are greater.

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Authors and Affiliations

  1. Escuela Técnica Superior de Ingeniería y Diseño Industrial, Universidad Politécnica de Madrid, Ronda de Valencia, 3, 28012, Madrid, Spain

    Manuel Islán Marcos, Emilio Lechosa Urquijo, Fernando Blaya Haro & Roberto D’Amato

  2. Dpto. de Ingeniería Mecánica, Universidad Carlos III de Madrid, Avda. de la Universidad, 30, 28911, Leganés, Madrid, Spain

    Enrique Soriano Heras

  3. Campus Miguel de Unamuno, Universidad de Salamanca, 37007, Salamanca, Spain

    Juan Antonio Juanes

Authors
  1. Manuel Islán Marcos
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  2. Emilio Lechosa Urquijo
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  3. Fernando Blaya Haro
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  4. Roberto D’Amato
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  5. Enrique Soriano Heras
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  6. Juan Antonio Juanes
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Corresponding authors

Correspondence to Manuel Islán Marcos, Roberto D’Amato or Juan Antonio Juanes.

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Conflict of interest

Manuel Islán Marcos declares that he has no conflict of interest. Emilio Lechosa Urquijo declares that he has no conflict of interest. Fernando Blaya Haro declares that he has no conflict of interest. Roberto D’Amato declares that he has no conflict of interest. Enrique Soriano Heras declares that he has no conflict of interest. Juan Antonio Juanes declares that he has no conflict of interest.

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This article does not contain any studies with human participants performed by any of the authors. This article does not contain any studies with animals performed by any of the authors.

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Islán Marcos, M., Lechosa Urquijo, E., Blaya Haro, F. et al. Behavior under Load of A Human Shoulder: Finite Element Simulation and Analysis. J Med Syst 43, 132 (2019). https://doi.org/10.1007/s10916-019-1248-y

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  • DOI: https://doi.org/10.1007/s10916-019-1248-y

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