A refined view of the determinants of gait: Significance of heel rise

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Presentation transcript:

A refined view of the determinants of gait: Significance of heel rise D.Casey Kerrigan, MD, MS, Ugo Della Croce, PhD, Michael Marciello, MD, Patrick O. Riley, PhD Archives of Physical Medicine and Rehabilitation Volume 81, Issue 8, Pages 1077-1080 (August 2000) DOI: 10.1053/apmr.2000.6306 Copyright © 2000 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

Fig. 1 A modified compass gait model to evaluate the isolated effect of heel rise on COM vertical displacement. The value b is calculated using the measured values s (step length), h (heel rise), and l (COM height minus ankle joint height at COM maximum). Archives of Physical Medicine and Rehabilitation 2000 81, 1077-1080DOI: (10.1053/apmr.2000.6306) Copyright © 2000 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

Fig. 2 Individual values of predicted reduction in COM displacement due to heel rise (sp − hp) and actual reduction in COM displacement (sp − ad), both in millimeters. Archives of Physical Medicine and Rehabilitation 2000 81, 1077-1080DOI: (10.1053/apmr.2000.6306) Copyright © 2000 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

Fig. 3 Predicted reduction in COM displacement due to heel rise (sp − hp), in millimeters, versus knee flexion of the ipsilateral limb (degrees): r = .85, p < .0001. Archives of Physical Medicine and Rehabilitation 2000 81, 1077-1080DOI: (10.1053/apmr.2000.6306) Copyright © 2000 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions