IDEAS home Printed from https://ideas.repec.org/a/taf/gcmbxx/v16y2013i1p54-65.html
   My bibliography  Save this article

Coupled objective function to study the role of abdominal muscle forces in lifting using the kinematics-driven model

Author

Listed:
  • Z. El Ouaaid
  • A. Shirazi-Adl
  • N. Arjmand
  • A. Plamondon

Abstract

To circumvent the existing shortcoming of optimisation algorithms in trunk biomechanical models, both agonist and antagonist trunk muscle stresses to different powers are introduced in a novel objective function to evaluate the role of abdominal muscles in trunk stability and spine compression. This coupled objective function is introduced in our kinematics-driven finite element model to estimate muscle forces and to identify the role of abdominal muscles in upright standing while lifting symmetrically a weight at different heights. Predictive equations for the compression and buckling forces are developed. Results are also compared with the conventional objective function that neglects abdominal muscle forces. An overall optimal solution involving smaller spinal compression but higher trunk stability is automatically attained when choosing muscle stress powers at and around 3. Results highlight the internal oblique muscle as the most efficient abdominal muscle during the tasks investigated. The estimated relative forces in abdominal muscles are found to be in good agreement with the respective ratios of recorded electromyography activities.

Suggested Citation

  • Z. El Ouaaid & A. Shirazi-Adl & N. Arjmand & A. Plamondon, 2013. "Coupled objective function to study the role of abdominal muscle forces in lifting using the kinematics-driven model," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 16(1), pages 54-65.
    • Handle: RePEc:taf:gcmbxx:v:16:y:2013:i:1:p:54-65
    DOI: 10.1080/10255842.2011.607441
    as

    Download full text from publisher

    File URL: http://hdl.handle.net/10.1080/10255842.2011.607441
    Download Restriction: Access to full text is restricted to subscribers.
    File URL: https://libkey.io/10.1080/10255842.2011.607441?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. N. Arjmand & A. Shirazi-Adl & M. Parnianpour, 2008. "Relative efficiency of abdominal muscles in spine stability," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 11(3), pages 291-299.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Z. El Ouaaid & N. Arjmand & A. Shirazi-Adl & M. Parnianpour, 2009. "A novel approach to evaluate abdominal coactivities for optimal spinal stability and compression force in lifting," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 12(6), pages 735-745.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:taf:gcmbxx:v:16:y:2013:i:1:p:54-65. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Chris Longhurst (email available below). General contact details of provider: http://www.tandfonline.com/gcmb .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.