Advanced Search
MyIDEAS: Login

New Automatic Measurement Method of the Motor Unit Action Potential Duration based on the Wavelet and Hilbert Transforms

Contents:

Author Info

  • Ignacio Rodríguez Carreño

    ()
    (Universidad de Navarra, Depto. Métodos Cuantitativos, Pamplona)

  • L. Gila Useros, A. Malanda Trigueros, J. Navallas Irujo, J. Rodríguez Falces
Registered author(s):

    Abstract

    A new automatic method based on the wavelet and Hilbert transforms for measuring the motor unit action potential (MUAP) duration is presented in this work. A total of 182 MUAPs from two different muscles were analysed. The average MUAP waveform was wavelet-transfomed, and a particular scale of the wavelet transform was selected to avoid baseline fluctuation and high frequency noise. Then, the Hilbert transform was applied to this wavelet scale to obtain its envelope. Amplitude and slope criteria in this envelope were used to obtain the MUAP start and end points. The results of the new method were compared to the gold standard of duration marker positions obtained by manual measurement. These new method was also compared to two another automatic duration methods: a recently method developed by the authors and a conventional automatic duration algorithm. The differences between the new algorithm’s marker positions and the gold standard of duration marker positions were in some cases smaller than those observed with the recently published and the conventional method. Our new method for automatic measurement of MUAP duration is more accurate than other available conventional algorithms and performs better than the recent method in some cases.

    Download Info

    If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
    File URL: http://www.unav.es/facultad/econom/files/workingpapersmodule/@random482ac104b1c71/1231610865_WP_UNAV_14_08.pdf
    Download Restriction: no

    Bibliographic Info

    Paper provided by School of Economics and Business Administration, University of Navarra in its series Faculty Working Papers with number 14/08.

    as in new window
    Length: 25 pages
    Date of creation: 19 Dec 2008
    Date of revision:
    Handle: RePEc:una:unccee:wp1408

    Contact details of provider:
    Web page: http://www.unav.es/facultad/econom

    Related research

    Keywords:

    This paper has been announced in the following NEP Reports:

    References

    No references listed on IDEAS
    You can help add them by filling out this form.

    Citations

    Lists

    This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

    Statistics

    Access and download statistics

    Corrections

    When requesting a correction, please mention this item's handle: RePEc:una:unccee:wp1408. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: ().

    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 references are entirely missing, you can add them using this form.

    If the full references list an item that is present in RePEc, but the system did not link 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 profile, as there may be some citations waiting for confirmation.

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