Biomechanical Analysis of Gait Termination in 11-17 Year Old Youth at Preferred and Fast Walking Speeds

Author(s)Ridge, Sarah Trager
Author(s)Henley, John
Author(s)Manal, Kurt
Author(s)Miller, Freeman
Author(s)Richards, James G.
Ordered AuthorSarah Trager Ridge, John Henley, Kurt Manal, Freeman Miller, and James G. Richards
UD AuthorRidge, Sarah Trageren_US
UD AuthorManal, Kurten_US
UD AuthorRichards, James G.en_US
Date Accessioned2016-11-03T18:36:12Z
Date Available2016-11-03T18:36:12Z
Copyright DateCopyright © 2016 Published by Elsevier B.V.en_US
Publication Date2016-07-15
DescriptionAuthor's final draft after peer reviewen_US
AbstractIn populations where walking and/or stopping can be difficult, such as in children with cerebral palsy, the ability to quickly stop walking may be beyond the child’s capabilities. Gait termination may be improved with physical therapy. However, without a greater understanding of the mechanical requirements of this skill, treatment planning is difficult. The purpose of this study was to understand how healthy children successfully terminate gait in one step when walking quickly, which can be challenging even for healthy children. Lower extremity kinematic and kinetic data were collected from 15 youth as they performed walking, planned, and unplanned stopping tasks. Each stopping task was performed as the subject walked at his/her preferred speed and a fast speed. The most significant changes in mechanics between speed conditions (preferred and fast) of the same stopping task were greater knee flexion angles (unplanned: +16.49±.54°, p=.00; planned: +15.75±1.1°, p=.00) and knee extension moments (unplanned: +.67±.02 N/kgm, p=.00; planned: +.57±.23 N/kgm, p=.00) at faster speeds. The extra range of motion in the joints and extra muscle strength required to maintain the stopping position suggests that stretching and strengthening the muscles surrounding the joints of the lower extremity, particularly the knee, may be a useful intervention.en_US
DepartmentUniversity of Delaware. Kinesiology and Applied Physiology.en_US
DepartmentUniversity of Delaware. Department of Mechanical Engineering.en_US
CitationRidge, Sarah Trager, et al. "Biomechanical analysis of gait termination in 11–17year old youth at preferred and fast walking speeds." Human Movement Science 49 (2016): 178-185.en_US
DOIdoi:10.1016/j.humov.2016.07.001en_US
ISSN0167-9457 ; e- 1872-7646en_US
URLhttp://udspace.udel.edu/handle/19716/19825
Languageen_USen_US
PublisherElsevieren_US
dc.rightsCC-BY-NC-NDen_US
dc.sourceHuman Movement Scienceen_US
dc.source.urihttp://www.journals.elsevier.com/human-movement-scienceen_US
TitleBiomechanical Analysis of Gait Termination in 11-17 Year Old Youth at Preferred and Fast Walking Speedsen_US
TypeArticleen_US
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