Measuring human balance on an instrumented dynamic platform: a postural sway analysis

Darwin Gouwanda, Alpha A. Gopalai, Z. S. Lim, K. H. Lim

    Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

    3 Citations (Scopus)


    A system to monitor the trajectory and distribution of Center of Pressure (CoP) oscillations in real-time was designed. The system used a custom built force plate that measured sway area and sway velocity based on the measured CoP. A stable posture is reflected by a controlled CoP oscillation, where the oscillation lies within the limits of stability. Large magnitudes of CoP oscillations (large sway area) indicate weak proprioception strength and a heightened risk of falls. Experiments carried out involved self-induced perturbations that destabilized postural control among volunteers with active and inactive lifestyles. The observed results from the experiment indicate that individuals with active lifestyle have better postural control than individuals with inactive lifestyle. Subjects with active lifestyles demonstrated greater sway velocities, while maintaining a small sway area.

    Original languageEnglish
    Title of host publicationThe 15th International Conference on Biomedical Engineering, ICBME 2013
    EditorsJames Goh
    Number of pages4
    ISBN (Electronic)9783319029122
    Publication statusPublished - 2014
    EventInternational Conference on Biomedical Engineering (ICBME) 2013 - Singapore, Singapore
    Duration: 4 Dec 20137 Dec 2013
    Conference number: 15th (Springer Conference Proceedings)

    Publication series

    NameIFMBE Proceedings
    ISSN (Print)1680-0737


    ConferenceInternational Conference on Biomedical Engineering (ICBME) 2013
    Abbreviated titleICMBE 2013
    Internet address


    • Postural sway
    • Sway velocity
    • Sways area

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