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Postural muscle responses and adaptations to backward platform perturbations in young people with and without intellectual disability
Umeå univeristet.
Department of Community Medicine and Rehabilitation, Physiotherapy, Umeå University, Umeå, Sweden.
Department of Research and Evaluation, Swedish National Agency for Education, Stockholm, Sweden.
2014 (English)In: Gait & Posture, ISSN 0966-6362, E-ISSN 1879-2219, Vol. 39, no 3, 904-908 p.Article in journal (Refereed) Published
Abstract [en]

This study examines postural muscle responses to backward perturbations in young people (16-20 years) with and without intellectual disability (ID). The study included 56 young people with ID and 43 age-matched without ID volunteers. The subjects stood on a platform that was moved backwards in a surface translation. Lower and upper leg muscles and lower back spine muscles were recorded with surface electromyography (EMG). Muscle onset latency, time to peak amplitude (EMG), adaptation of muscle responses to repeated perturbations (using integrated EMG (IEMG) for epochs), and synergies and strategies were assessed. The result showed no differences between the two groups in muscle onset latency, synergies, and strategies. Young people with ID reduced their time to peak amplitude in investigated muscles, a response that was different from the group without ID. Also, young people with ID tended to adapt their IEMG less compared to the controls. These findings suggest that young people with ID have limited ability to use somatosensory information and adapt their postural muscle responses to repeated external perturbations.

Place, publisher, year, edition, pages
2014. Vol. 39, no 3, 904-908 p.
Keyword [en]
Balance perturbations, EMG, Mental retardation, Postural control, Young adults
National Category
Other Medical Sciences not elsewhere specified
Identifiers
URN: urn:nbn:se:hig:diva-18188DOI: 10.1016/j.gaitpost.2013.11.018ISI: 000332960600013PubMedID: 24373785Scopus ID: 2-s2.0-84895891407OAI: oai:DiVA.org:hig-18188DiVA: diva2:766257
Available from: 2014-11-26 Created: 2014-11-26 Last updated: 2017-05-02Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard-cite-them-right
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • sv-SE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • de-DE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf