Temporal Coordination of the Sit-to-Walk Task in Subjects With Stroke and in Controls Gunilla E. Frykberg, MSc, Anna Cristina Åberg, PhD, Kjartan Halvorsen,

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Temporal Coordination of the Sit-to-Walk Task in Subjects With Stroke and in Controls Gunilla E. Frykberg, MSc, Anna Cristina Åberg, PhD, Kjartan Halvorsen, PhD, Jörgen Borg, PhD, Helga Hirschfeld, PhD Archives of Physical Medicine and Rehabilitation Volume 90, Issue 6, Pages 1009-1017 (June 2009) DOI: 10.1016/j.apmr.2008.12.023 Copyright © 2009 American Congress of Rehabilitation Medicine Terms and Conditions

Fig 1 Experimental set up of STW with 38 markers (including 6 clusters) and 4 forceplates. The reference coordinates are the same for kinematics and kinetics. Archives of Physical Medicine and Rehabilitation 2009 90, 1009-1017DOI: (10.1016/j.apmr.2008.12.023) Copyright © 2009 American Congress of Rehabilitation Medicine Terms and Conditions

Fig 2 Four STW phases (1–4), representing 100% movement time, defined by the timing of 5 events (I–V). The data originate from 1 trial of a control person. Thick lines represent traces of vertical force data from the first forthcoming swing leg and the ipsilateral buttock. Abbreviations: BW, body weight; x, anterior-posterior. Archives of Physical Medicine and Rehabilitation 2009 90, 1009-1017DOI: (10.1016/j.apmr.2008.12.023) Copyright © 2009 American Congress of Rehabilitation Medicine Terms and Conditions

Fig 3 Variability of the STW performance in 6 trials in a subject with stroke (A) and in the matched control person (B). STW events (I–V) define 4 phases (1–4). The vertical lines illustrate phases in 1 representative trial for each person. Abbreviations: BW, body weight; x, anterior-posterior. Archives of Physical Medicine and Rehabilitation 2009 90, 1009-1017DOI: (10.1016/j.apmr.2008.12.023) Copyright © 2009 American Congress of Rehabilitation Medicine Terms and Conditions

Fig 4 Group means and SDs of relative duration (in % of 100% movement time) of STW phases in subjects with stroke (n=10) and in control subjects (n=10). Vertical lines illustrate relative STW phase duration of the control group. Archives of Physical Medicine and Rehabilitation 2009 90, 1009-1017DOI: (10.1016/j.apmr.2008.12.023) Copyright © 2009 American Congress of Rehabilitation Medicine Terms and Conditions

Fig 5 Interaction plot of relative STW phase duration grouped by group × phase. Group means and 95% confidence intervals (CIs) of relative STW phase duration are expressed as percentages of 100% movement time. Archives of Physical Medicine and Rehabilitation 2009 90, 1009-1017DOI: (10.1016/j.apmr.2008.12.023) Copyright © 2009 American Congress of Rehabilitation Medicine Terms and Conditions