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The role of arm movement in early trip recovery in younger and older adults


Reference:

Roos, P. E., McGuigan, M. P., Kerwin, D. G. and Trewartha, G., 2008. The role of arm movement in early trip recovery in younger and older adults. Gait & Posture, 27 (2), pp. 352-356.

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    Official URL:

    http://dx.doi.org/10.1016/j.gaitpost.2007.05.001

    Abstract

    The aims of this study were to investigate which arm movements are made during trip recovery, to determine the contributions of arm movements in trip recovery and to identify differences in these contributions between younger and older adults and different recovery strategies. A group of seven older adults (65-75 years) and a group of eight younger adults (20-35 years) were examined. Participants completed a trip recovery protocol in which 3-D kinematic and kinetic data were collected for recovery movements following unexpected trips during locomotion. In younger adults, arm movements were associated with an elevated body centre of mass (CM) position during recovery. Arm movements also served to reduce the angular momentum in the direction of the trip by 13% between trip stimulus and recovery foot contact in 'elevating' recovery strategies. Arm movements in older adults contributed an additional 3% to the destabilising angular momentum during 'elevating' recoveries. It was concluded that older adults exhibit a more 'protective' recovery strategy (to limit injury resulting from fall impacts following loss of balance) and younger adults exhibit a more 'preventive' strategy (to prevent loss of balance). (c) 2007 Elsevier B.V. All rights reserved.

    Details

    Item Type Articles
    CreatorsRoos, P. E., McGuigan, M. P., Kerwin, D. G. and Trewartha, G.
    DOI10.1016/j.gaitpost.2007.05.001
    DepartmentsFaculty of Humanities & Social Sciences > Health
    RefereedYes
    StatusPublished
    ID Code6206
    Additional InformationID number: ISI:000253331300024

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