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Temporal Coordination of the Sit-to-Walk Task in Subjects With Stroke and in Controls
KTH, School of Technology and Health (STH), Medical Engineering.
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2009 (English)In: Archives of Physical Medicine and Rehabilitation, ISSN 0003-9993, E-ISSN 1532-821X, Vol. 90, no 6, 1009-1017 p.Article in journal (Refereed) Published
Abstract [en]

Objectives: To explore events and describe phases for temporal coordination of the sit-to-walk (STW) task, within a semi standardized set up, in subjects with stroke and matched controls. In addition, to assess variability of STW phase duration and to compare the relative duration of STW phases between the 2 groups. Design: Cross-sectional. Setting: Research laboratory. Participants: A convenience sample of persons with hemiparesis (n=10; age 50-67y) more than 6 months after stroke and 10 controls matched for sex, age, height, and body mass index. Interventions: Not applicable. Main Outcome Measures: Relative duration of STW phases, SE of measurement in percentage of the mean, and intraclass correlation coefficients (ICCs). Results: Four STW phases were defined: rise preparation, transition, primary gait initiation, and secondary gait initiation. The Subjects with stroke needed 54% more time to complete the STW task than the controls did. ICCs ranged from .38 to .66 and .22 to .57 in the stroke and control groups, respectively. SEs of measurement in percentage of the mean values were high, particularly in the transition phase: 54.1% (stroke) and 50.4% (controls). The generalized linear model demonstrated that the relative duration of the transition phase was significantly longer in the stroke group. Conclusions: The present results extend existing knowledge by presenting 4 new phases of temporal coordination of STW, within a semistandardized set-up, in persons with stroke and in controls. The high degree of variability regarding relative STW phase duration was probably a result of both the semistandardized Set up and biological variability. The significant difference in the transition phase across the 2 groups requires further study.

Place, publisher, year, edition, pages
2009. Vol. 90, no 6, 1009-1017 p.
Keyword [en]
Stroke, Motor activity, Rehabilitation, Reproducibility of results
National Category
Medical and Health Sciences
URN: urn:nbn:se:kth:diva-30836DOI: 10.1016/j.apmr.2008.12.023ISI: 000266787000016ScopusID: 2-s2.0-65949087678OAI: diva2:402983
QC 20110310Available from: 2011-03-10 Created: 2011-03-04 Last updated: 2011-03-10Bibliographically approved

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