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• W1981391916 abstract "A distinct body reorientation strategy during steering tasks has been reported in young adults. As challenges to whole-body stability in older adults occur when navigating complex environments, this study was designed to examine control strategies used by older adults to initiate a voluntary change in travel direction. Thirteen older adults, recruited from an independent living division of a local retirement residence, were instrumented with reflective markers and whole-body kinematic data were monitored using a video camera (30 Hz). Participants executed self-paced walking trials 3-m along a straight path and were instructed prior to the trial to continue either straight ahead or randomly turn 40° left or right and continue walking for an additional 2-m. Timing of changes with respect to when the trunk crossed the turning point were calculated for deviations in head and trunk position and foot rotation in the medial-lateral plane. Older adults reoriented themselves into the new travel direction in a top-down, segmental sequence, beginning with head reorientation followed by trunk reorientation, foot rotation and foot displacement into the new travel direction. These changes were initiated over two or more steps 69% of the time and over one step 31% of the time. A significant relationship between turning strategy used and balance confidence was observed; the frequency of using a turning strategy involving two or more steps to initiate a change in travel direction increased as balance confidence decreased. Older adults made segmental changes to voluntarily reorient themselves in a new travel direction in a similar sequence to that observed in young adults. Older adults chose primarily to initiate these changes two or more steps prior to the turn; the selection of this strategy was related to balance confidence." @default.
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• W1981391916 date "2007-03-01" @default.
• W1981391916 modified "2023-09-30" @default.
• W1981391916 title "Strategies used by older adults to change travel direction" @default.
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• W1981391916 doi "https://doi.org/10.1016/j.gaitpost.2006.05.013" @default.
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