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    Surface electromyography as a tool to assess the responses of car passengers to lateral accelerations. Part II: Objective comparison of vehicles

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    Authors
    Farah, G.
    Petit-Boulanger, C.
    Hewson, David
    Duchêne, Jacques
    Affiliation
    Université de Technologie de Troyes
    Technocentre Renault
    Issue Date
    2006-02-02
    Subjects
    surface electromyography
    lateral acceleration
    chassis-seat configuration
    muscle response
    vehicle comparison
    
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    Abstract
    The purpose of this study was to objectively assess the response of car passengers to lateral accelerations. Surface EMG signals were collected bilaterally from the cervical erector spinae (CES), latissimus dorsi (LD), erector spinae (ES), external oblique (EO), and vastus lateralis (VL) muscles of 10 subjects. Lateral acceleration was also recorded. Three chassis-seat configurations AA, BA and BB were tested, with the first letter denoting the chassis and the second the seat. SEMG signals were often contaminated by noise, and were, therefore, denoised using the methods explained in part I. Reciprocal phasic activity was observed for all muscles except for the EO, and the reaction of passengers to lateral accelerations was interpreted as a bust torsion. The RMS of EMG segments was used as an indication of muscle activity. Muscle activation of VL and ES were significantly affected by the configuration tested (p < 0.05), with greater activation levels observed for the chassis A than for the chassis B. Such a finding implies that greater roll requires greater muscle activity, thus resulting in less comfortable vehicles. Therefore, SEMG can be used to provide an objective measure of discomfort in passengers subjected to lateral accelerations in a car seat.
    Citation
    Farah G, Petit-Boulanger C, Hewson DJ, Duchene J (2006) 'Surface electromyography as a tool to assess the responses of car passengers to lateral accelerations. Part II: Objective comparison of vehicles', Journal of Electro - myography and Kinesiology, 16 (6), pp.-.
    Publisher
    Elsevier
    Journal
    Journal of Electromyography and Kinesiology
    URI
    http://hdl.handle.net/10547/623458
    DOI
    10.1016/j.jelekin.2005.11.011
    Additional Links
    https://www.sciencedirect.com/science/article/pii/S105064110500146X
    Type
    Article
    Language
    en
    ISSN
    1050-6411
    EISSN
    1873-5711
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.jelekin.2005.11.011
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