Postural muscle responses and adaptations to backward platform perturbations in young people with and without intellectual disability
2014 (English)In: Gait & Posture, ISSN 0966-6362, E-ISSN 1879-2219, Vol. 39, no 3, 904-908 p.Article in journal (Refereed) Published
This study examines postural muscle responses to backward perturbations in young people 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), adaption of muscle responses to repeated perturbations (using IEMG for epochs), and synergies and strategies were assessed. The result showed no differences between the two groups in muscle onset latency, time to peak amplitude, synergies, and strategies. However, 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 adapt their postural muscle responses to repeated perturbations.
Place, publisher, year, edition, pages
Elsevier, 2014. Vol. 39, no 3, 904-908 p.
Mental retardation; Balance perturbations; EMG; Postural control; Young adults
IdentifiersURN: urn:nbn:se:umu:diva-71230DOI: 10.1016/j.gaitpost.2013.11.018ISI: 000332960600013OAI: oai:DiVA.org:umu-71230DiVA: diva2:622821