Effects of slipping-like perturbation intensity on the dynamical stability

Federica Aprigliano, Dario Martelli, Peppino Tropea, Silvestro Micera, Vito Monaco

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

Abstract

Falls are a major cause of morbidity and death in elderly people. Understanding how subjects maintain stability while walking or while being exposed to perturbations is important in order to prevent falls. Here, five healthy subjects were asked to manage unexpected slipping-like perturbations of increasing intensities (i.e., soft, medium and strong) in order to investigate the effects of the perturbation intensity on the biomechanical behavior and on the dynamical stability, described by the Margin of Stability. The lower limb kinematic (i.e., hip, knee and ankle joints angles) was computed before and after the onset of the perturbation. The compensatory time and the Margin of Stability were calculated after the onset of the perturbation. As expected, results showed that the perturbation altered the subjects' kinematic and the modulation of the perturbation intensity was reflected in the dynamical stability: the stronger was the perturbation, the lower was the Margin of Stability describing a lower balance recovery.

Original languageEnglish
Title of host publicationProceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages5295-5298
Number of pages4
Volume2015-November
ISBN (Print)9781424492718
DOIs
Publication statusPublished - Nov 4 2015
Event37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2015 - Milan, Italy
Duration: Aug 25 2015Aug 29 2015

Other

Other37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2015
CountryItaly
CityMilan
Period8/25/158/29/15

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Signal Processing
  • Biomedical Engineering
  • Health Informatics

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  • Cite this

    Aprigliano, F., Martelli, D., Tropea, P., Micera, S., & Monaco, V. (2015). Effects of slipping-like perturbation intensity on the dynamical stability. In Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS (Vol. 2015-November, pp. 5295-5298). [7319586] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/EMBC.2015.7319586