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Effects of Functional Footwear Designed for Decreasing Ground Reaction Force on Ankle and Foot Range of Motion During Gait in Healthy Individuals
J Korean Soc Phys Med 2018;13(3):113-120
Published online August 31, 2018;  https://doi.org/10.13066/kspm.2018.13.3.113
© 2018 Journal of The Korean Society of Physical Medicine.

Yong-Wook Kim, PhD, PT

Department of Physical Therapy, College of Medical Sciences, Jeonju University
Received June 5, 2018; Revised June 8, 2018; Accepted June 23, 2018.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
PURPOSE: This study was conducted to investigate the characteristics of a specific functional shoe in terms of the range of motion (ROM) of ankle and foot joints during walking when compared to a standardized shoe.
METHODS: Kinematic ROM data pertaining to ankle, tarsometatarsal, and metatarsophalangeal joints were collected from twenty-six healthy individuals during walking using a ten-camera motion analysis system. Kinematic ROM of each joint in three planes was obtained over ten walking trials consisting of two different shoe conditions. Visual3D motion analysis was finally used to coordinate the kinematic data. All kinematic ROM data were interpolated using a cubic spline algorithm and low-pass filtered with a cutoff frequency of 6 Hz for smoothing.
RESULTS: The overall ROM of the ankle joint in the sagittal and coronal planes when wearing the specific functional shoe was significantly decreased in both ankles during walking when compared to wearing a standard shoe (p<.05). Significantly more flexibility was observed when wearing the specific functional shoe in the tarsometatarsal and metatarsophalangeal joints compared to a standard shoe (p<.05).
CONCLUSION: Although clinical application of the specific functional shoe has shown clear positive effects on knee and ankle moments, the results of this study provide important background information regarding the kinematic mechanisms of these effects.
Keywords : Ankle, Foot, Functional shoe, Gait, Joint range of motion


August 2018, 13 (3)
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