• Login
    View Item 
    •   Home
    • University Colleges
    • SUNY Brockport
    • Faculty/Staff Publications
    • Kinesiology, Sport Studies and Physical Education Faculty Publications
    • View Item
    •   Home
    • University Colleges
    • SUNY Brockport
    • Faculty/Staff Publications
    • Kinesiology, Sport Studies and Physical Education Faculty Publications
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of SUNY Open Access RepositoryCommunitiesPublication DateAuthorsTitlesSubjectsDepartmentThis CollectionPublication DateAuthorsTitlesSubjectsDepartmentAuthor ProfilesView

    My Account

    LoginRegister

    Campus Communities in SOAR

    Alfred State CollegeBrockportBroomeCantonDownstateEmpireFredoniaMaritimeNew PaltzOneontaOptometryOswegoPlattsburghSUNY Polytechnic InstituteSUNY Office of Community Colleges and the Education PipelineSUNY PressUpstate Medical

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Virtual time-to-contact of postural stability boundaries as a function of support surface compliance

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Average rating
     
       votes
    Cast your vote
    You can rate an item by clicking the amount of stars they wish to award to this item. When enough users have cast their vote on this item, the average rating will also be shown.
    Star rating
     
    Your vote was cast
    Thank you for your feedback
    Author
    Haibach, Pamela
    Slobounov, Semyon M.
    Slobounov, Elena S.
    Newell, Karl M.
    Keyword
    Postural Control
    Stability Boundaries
    Virtual Time-To-Contact
    Journal title
    Experimental Brain Research
    Date Published
    2006-10-10
    Publication Volume
    177
    
    Metadata
    Show full item record
    URI
    http://hdl.handle.net/20.500.12648/2400
    Abstract
    This study investigated the hypothesis that virtual time-to-contact, which specifies the time to reach the functional stability boundary, is a variable controlled in the maintenance of upright posture. Three different levels of support surface compliance were used on a force platform (no foam, 5 cm of foam, and 15 cm of foam). The participant’s task was to stand still under each surface support condition both with and without vision. The stability boundary was determined for each set of conditions where the participant was required to lean as far as possible in all directions of the horizontal plane without losing stability. The results showed that the no vision conditions had a significantly larger center of pressure displacement than the vision conditions. No vision and increasing support surface compliance also increased the velocity of the center of pressure trajectory. The distribution of the radial displacement of the center of pressure showed relatively equal frequency over spatial location with no central tendency. The virtual time-to-contact with the stability boundary decreased as platform surface support became more compliant. Furthermore, the distribution of virtual time over the effective scaling range was a power law with a larger exponent in the more unstable no vision and increasing surface foam conditions. The findings provide additional evidence for the hypothesis that virtual time-to-contact with stability boundaries is a postural control variable that is regulated rather than the preservation of minimal motion around the center of the stability region as proposed in pendulum models of posture.
    Citation
    DOI 10.1007/s00221-006-0703-4
    DOI
    https://doi.org/10.1007/s00221-006-0703-4
    ae974a485f413a2113503eed53cd6c53
    https://doi.org/10.1007/s00221-006-0703-4
    Scopus Count
    Collections
    Kinesiology, Sport Studies and Physical Education Faculty Publications

    entitlement

     

    DSpace software (copyright © 2002 - 2023)  DuraSpace
    Quick Guide | Contact Us
    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.