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dc.contributor.authorKavanagh, Justinen_US
dc.contributor.authorBarrett, Roden_US
dc.contributor.authorMorrison, Stevenen_US
dc.contributor.editorP.J. Beeken_US
dc.date.accessioned2017-05-03T13:05:26Z
dc.date.available2017-05-03T13:05:26Z
dc.date.issued2005en_US
dc.identifier.issn01679457en_US
dc.identifier.doi10.1016/j.humov.2005.07.003en_US
dc.identifier.urihttp://hdl.handle.net/10072/4887
dc.description.abstractThe purpose of this study was to examine the effect of ageing on the pattern and structure of head and trunk accelerations during walking. Head and trunk accelerations of young (n = 8; mean = 23 years, SD = 4 years) and elderly (n = 8; mean = 74 years, SD = 3 years) individuals were measured using triaxial accelerometers while performing preferred speed walking. Accelerations were examined using power-spectral analysis and measures of signal smoothness, regularity and coupling. No differences in walking speed or signal regularity were detected between age groups. Compared to the young participants, the elderly had (1) a greater proportion of signal power above 6 Hz for the trunk, (2) a smaller difference in signal smoothness between the trunk and head, (3) less signal smoothness in the mediolateral direction, and (4) a greater degree of directional coupling for the head compared to the trunk. Overall these results suggest that the pattern of head accelerations was relatively unaffected by age, and that both age groups achieved similar levels of head stability despite differences in trunk acceleration characteristics. The manner in which head stability was achieved differed between age groups, with the elderly employing an upper body coordination strategy that enhanced coupling between acceleration directions of the head compared to the trunk. The findings of this study also suggest that an absence of age-related differences in signal complexity at one level of postural system, combined with differences at another level, may provide information about the way in which the motor system prioritises postural control during gait.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_US
dc.languageEnglishen_US
dc.language.isoen_US
dc.publisherElsevier Science BVen_US
dc.publisher.placeAmsterdamen_US
dc.relation.ispartofstudentpublicationYen_US
dc.relation.ispartofpagefrom574en_US
dc.relation.ispartofpageto587en_US
dc.relation.ispartofissue4en_US
dc.relation.ispartofjournalHuman Movement Scienceen_US
dc.relation.ispartofvolume24en_US
dc.rights.retentionYen_US
dc.subject.fieldofresearchcode321403en_US
dc.titleAge-related differences in head and trunk coordination during walkingen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.date.issued2015-05-04T22:03:55Z
gro.hasfulltextNo Full Text


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