Boston University Libraries OpenBU
    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    •   OpenBU
    • Centers & Institutes
    • NeuroMuscular Research Center
    • NeuroMuscular Research Center Papers
    • View Item
    •   OpenBU
    • Centers & Institutes
    • NeuroMuscular Research Center
    • NeuroMuscular Research Center Papers
    • View Item

    Reliability of Voluntary Step Execution Behavior under Single and Dual Task Conditions

    Thumbnail
    License
    Copyright 2007 Melzer et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
    Date Issued
    2007-5-29
    Publisher Version
    10.1186/1743-0003-4-16
    Author(s)
    Melzer, Itshak
    Shtilman, Irena
    Rosenblatt, Noah
    Oddsson, Lars IE
    Share to FacebookShare to TwitterShare by Email
    Export Citation
    Download to BibTex
    Download to EndNote/RefMan (RIS)
    Metadata
    Show full item record
    Permanent Link
    https://hdl.handle.net/2144/3424
    Citation (published version)
    Melzer, Itshak, Irena Shtilman, Noah Rosenblatt, Lars IE Oddsson. "Reliability of voluntary step execution behavior under single and dual task conditions" Journal of NeuroEngineering and Rehabilitation 4:16. (2007)
    Abstract
    BACKGROUND The current study investigated the repeatability (test-retest reliability) of ground reaction force parameters recorded during a voluntary step execution under single (motor task) and dual task (motor and cognitive task) conditions for healthy adults and elderly individuals as well as the number of trials required to produce repeatable results. METHODS Twenty-four healthy adults (21–63 years old) and 16 elderly adults (66–87 years) performed a voluntary rapid step execution following a tap on their heel while standing on a force platform under single and dual task conditions on three separate occasions. The first two tests were performed 30–60 minutes apart and the third test was performed a week later. Variables analyzed from the ground reaction force data included onset latency of step initiation (initiation phase), preparation and swing phases, foot-off and foot-contact times. RESULTS Intraclass correlation coefficients (ICC(2,1)) were good to excellent across all parameters and test conditions for the pooled population and for elderly (0.74–0.92 and 0.62–0.88, respectively) except for the swing phase duration where lower values were seen (0.54–0.60 and 0.32–0.64 respectively). Values were similar under single and dual task conditions. CONCLUSION A voluntary step execution test, performed under single and dual task conditions especially foot-off and foot-contact times, is a reliable outcome measure that may be a useful tool to asses dynamic balance function for diagnostic purposes as well as clinical intervention trials.
    Rights
    Copyright 2007 Melzer et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
    Collections
    • NeuroMuscular Research Center Papers [4]


    Boston University
    Contact Us | Send Feedback | Help
     

     

    Browse

    All of OpenBUCommunities & CollectionsIssue DateAuthorsTitlesSubjectsThis CollectionIssue DateAuthorsTitlesSubjects

    Deposit Materials

    LoginNon-BU Registration

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Boston University
    Contact Us | Send Feedback | Help