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Passive Ankle Stiffness Changes After Stroke Rehabilitation

Study on passive ankle stiffness changes post-stroke rehabilitation and its impact on gait function, focusing on sagittal plane improvements.

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Passive Ankle Stiffness Changes After Stroke Rehabilitation

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  1. Figure 4. Passive ankle stiffness (PAS) (Nm/rad) in each direction at baseline (PRE) and at termination (POST). Although PAS decreased in both planes of movement (sagittal and frontal) post training, changes were significant only in trained degree of freedom, i.e., sagittal plane. (a) Changes in sagittal plane PAS i.e., dorsiflexion (filled) and plantar flexion (unfilled) across time (PRE vs POST). In both directions, PAS decreased post training (*p < 0.05). PAS was anisotropic, i.e., higher in one direction versus another, at both time points, and this property was preserved across training with more pronounced difference between two directions at baseline (**p < 0.01). (b) Changes in frontal plane PAS, i.e., eversion (filled) and inversion (unfilled) across time (PRE vs POST). In both directions, PAS decreased post training but failed to achieve statistical significance. Unlike sagittal plane PAS, frontal plane PAS was not anisotropic at either time point. Roy A, Forrester LW, Macko RF, Krebs HI. Changes in passive ankle stiffness and its effects on gait function in people with chronic stroke. J Rehabil Res Dev. 2013; 50(4):555–72.http://dx.doi.org/10.1682/JRRD.2011.10.0206 ResearcherID/ORCID: Anindo Roy, PhD: E-4312-2012

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