| Challenging Horizontal Movement of the Body During Sit-to-Stand: Impact on Stability in the Young and Elderly. | |
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MedLine Citation:
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PMID: 21400328 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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There are 3 significant challenges to sit-to-stand: (a) bringing the center of mass forward, (b) vertically raising the center of mass from the sitting to standing position, and (c) transition from a relatively large and stable base of support in sitting to a considerably smaller base of support when standing. The authors explored the challenges to stability control following sit-to-stand when the requirement for horizontal movement of the center of mass was influenced by foot position and their potential effect on the preceding phases of sit-to-stand. Eleven healthy young and 11 healthy elderly individuals performed the sit-to-stand with their feet further away and closer to the chair. Kinetic and kinematic data were recorded. Regardless of foot position, challenges in stability were greater in elderly participants than young participants despite their similar movement time and shear forces. The greater instability in elderly participants, despite their comparable movement characteristics, emphasizes the importance of stability control following sit-to-stand performance. For both young and elderly participants, the sit-to-stand duration and the shear forces were greater in the far condition. However, foot position did not affect the stability measures (i.e., duration of the stabilization phase and the total center of pressure path during the 1st second of the stabilization phase). |
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Authors:
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Sakineh B Akram; William E McIlroy |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of motor behavior Volume: 43 ISSN: 1940-1027 ISO Abbreviation: J Mot Behav Publication Date: 2011 Mar |
Date Detail:
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Created Date: 2011-03-14 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0236512 Medline TA: J Mot Behav Country: United States |
Other Details:
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Languages: eng Pagination: 147-53 Citation Subset: IM |
Affiliation:
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Department of Kinesiology, University of Waterloo, Canada. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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