Gait termination in young and older adults : effect of stopping stimulus probability and stimulus delay

Tirosh, Oren and Sparrow, W.A. 2004, Gait termination in young and older adults : effect of stopping stimulus probability and stimulus delay, Gait and posture, vol. 19, no. 3, pp. 243-251.

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Title Gait termination in young and older adults : effect of stopping stimulus probability and stimulus delay
Author(s) Tirosh, Oren
Sparrow, W.A.
Journal name Gait and posture
Volume number 19
Issue number 3
Start page 243
End page 251
Publisher Elsevier BV
Place of publication Amsterdam, Netherlands
Publication date 2004-06
ISSN 0966-6362
1879-2219
Keyword(s) ageing
stopping
gait termination
stimulus probability
falls
Summary Sixteen young (25±2.6 years) and 16 older individuals (69±4.4 years) walked normally then terminated walking rapidly. A visual stopping stimulus was presented 10 ms following ground contact (short delay) and in another condition, at 450 ms prior to toe-off (long delay). Stimulus probability was either high (80% of trials) or low (10%). The younger group stopped faster (463 vs. 574 ms) despite also walking faster (1.29 vs. 1.17 m s−1). Longer delay decreased one-step responses but older participants used significantly more (slower) two-step stopping, which increased stopping time and distance. The additional step may have been pre-planned to maintain medial–lateral stability.
Language eng
Field of Research 110601 Biomechanics
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2003, Elsevier B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30002448

Document type: Journal Article
Collection: School of Exercise and Nutrition Sciences
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