Age-related differences in postural adjustments during limb movement and motor imagery in young and older adults

Wider, C. ORCID: 0000-0001-8531-1024, Mitra, S. ORCID: 0000-0001-7620-4809, Andrews, M. ORCID: 0000-0001-7499-9521 and Boulton, H. ORCID: 0000-0003-1919-9243, 2020. Age-related differences in postural adjustments during limb movement and motor imagery in young and older adults. Experimental Brain Research. ISSN 0014-4819 (Forthcoming)

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Abstract

Recent research has shown that systematic postural adjustments occur during periods of manual motor imagery (MI), but the timing (anticipatory or reactive) and directionality (against or in the direction of arm extension) of these postural motions relative to individual manual actions or imagery are not well understood. This study analyzed the anteroposterior hip and head motion of healthy young and older participants while they imagined bilateral arm raises under self-initiated or environmentally triggered performance conditions. When MI was self-initiated, both age groups showed significant forward postural motion during the second prior to MI initiation. When MI (or physical arm movement) was environmentally triggered, however, older people did not show anticipatory forward postural motion, but did show compensatory backward head motion. These results suggest that manual MI is indeed accompanied by anticipatory postural motion, but this anticipation is attenuated in older people when they do not have control over the timing of manual movement onset.

Item Type: Journal article
Publication Title: Experimental Brain Research
Creators: Wider, C., Mitra, S., Andrews, M. and Boulton, H.
Publisher: Springer
Date: 10 February 2020
ISSN: 0014-4819
Identifiers:
NumberType
1290711Other
Divisions: Schools > School of Social Sciences
Depositing User: Linda Sullivan
Date Added: 12 Feb 2020 09:38
Last Modified: 12 Feb 2020 09:38
URI: http://irep.ntu.ac.uk/id/eprint/39199

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