Original Research ArticlesChange in Center of Pressure Progression in the Foot Provides Clues for Functional Improvement of the More Affected Lower Limb During Post-stroke Gait RehabilitationChoi, Hyuk Sung MD; Choi, Hanboram MD; Kang, Suk MD, PhD; Jung, Jung Woo PT; Kim, Woo-Sub MD, PhDAuthor Information From the Department of Physical Medicine & Rehabilitation, Korea University Guro Hospital, Seoul, South Korea. All correspondence should be addressed to: Woo-Sub Kim, MD, PhD, Department of Physical Medicine & Rehabilitation, Korea University Guro Hospital, Gurodong-ro 28-gil, Guro-gu, Seoul, South Korea 08308. Hyuk Sung Choi is in training. Financial disclosure statements have been obtained, and no conflicts of interest have been reported by the authors or by any individuals in control of the content of this article. Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal’s Web site (www.ajpmr.com). American Journal of Physical Medicine & Rehabilitation: March 2021 - Volume 100 - Issue 3 - p 229-234 doi: 10.1097/PHM.0000000000001548 Buy SDC Metrics Abstract Objective The aim of this study was to determine the clinical significance of the anterior-posterior displacement of the center of pressure in the foot (apCoP) in post-stroke gait rehabilitation. Design This observational study was conducted in a tertiary hospital. Forty-two subacute post-stroke patients were included. The apCoP was measured twice with a wearable insole foot pressure measurement system, time interval more than 7 days. The results were compared between the first and second tests. The relationship between apCoP changes and spatiotemporal parameter changes were investigated. Results The apCoP increased significantly between tests. The change in walking speed was significantly predicted by the change in the apCoP on the less affected side. The change in asymmetry of the single support phase was significantly correlated with the change in the apCoP on the more affected side. Conclusion The change in apCoP provides information about the restoration of body support, body forward progression control, and propulsion in the more affected lower limb during early post-stroke rehabilitation. The apCoP can be a useful parameter for the monitoring of functional changes in the more affected lower limb during post-stroke gait rehabilitation. Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.