Denis Brunt, EdD, Brigid Greenberg, MHS, Sharmin Wankadia, MHS, Mark A

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The effect of foot placement on sit to stand in healthy young subjects and patients with hemiplegia Denis Brunt, EdD, Brigid Greenberg, MHS, Sharmin Wankadia, MHS, Mark A. Trimble, PhD, Orit Shechtman, PhD Archives of Physical Medicine and Rehabilitation Volume 83, Issue 7, Pages 924-929 (July 2002) DOI: 10.1053/apmr.2002.3324 Copyright © 2002 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

Fig. 1 Muscle activity and GRFs from an individual trial for the normal condition for the uninvolved limb of a patient with hemiplegia. The channels from top to bottom are the anteroposterior GRF (Fx), vertical GRF (Fz), tibialis anterior EMG activity (TA), and quadriceps EMG activity (Q). The vertical lines from left to right are (a) onset of movement, (b) minimum Fz, (c) minimum Fx, (d) peak Fx, and (e) peak Fz. Slope of Fz was measured from minimum Fz in the healthy subjects, and minimum Fx in the hemiplegic patients, to peak Fz. The time to peak Fz represents the duration of the transfer momentum phase. The integral of tibialis anterior and quadriceps EMG activity was determined for the duration of this phase. Archives of Physical Medicine and Rehabilitation 2002 83, 924-929DOI: (10.1053/apmr.2002.3324) Copyright © 2002 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

Fig. 2 Means (SDs) showing the peak Fx interaction for the healthy subjects. Symbols indicate those significant differences (P<.05) that explain the source of the interaction. Archives of Physical Medicine and Rehabilitation 2002 83, 924-929DOI: (10.1053/apmr.2002.3324) Copyright © 2002 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

Fig. 3 Means (SDs) showing the peak Fz interaction for the healthy subjects. Symbols indicate those significant differences (P<.05) that explain the source of the interaction. Archives of Physical Medicine and Rehabilitation 2002 83, 924-929DOI: (10.1053/apmr.2002.3324) Copyright © 2002 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

Fig. 4 Means (SDs) showing the rate of force development (slope) to Fz interaction for the healthy subjects. Symbols indicate those significant differences (P<.05) that explain the source of the interaction. Archives of Physical Medicine and Rehabilitation 2002 83, 924-929DOI: (10.1053/apmr.2002.3324) Copyright © 2002 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

Fig. 5 Means (SDs) showing the peak Fz interaction for the patients with hemiplegia. Symbols indicate those significant differences (P<.05) that explain the source of the interaction. Archives of Physical Medicine and Rehabilitation 2002 83, 924-929DOI: (10.1053/apmr.2002.3324) Copyright © 2002 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

Fig. 6 Means (SDs) showing the duration of the transfer-momentum phase (TM) interaction for the patients with hemiplegia. * Indicates those significant differences (P<.05) that explain the source of the interaction. Archives of Physical Medicine and Rehabilitation 2002 83, 924-929DOI: (10.1053/apmr.2002.3324) Copyright © 2002 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions