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The effects of restricting the flexion-extension motion of the first metatarsophalangeal joint on human walking gait

Issue title: Frontiers in Biomedical Engineering and Biotechnology – Proceedings of the 3rd International Conference on Biomedical Engineering and Biotechnology, 25–28 September 2014, Beijing, China

Article type: Research Article

Authors: Zhang, Junxia; | Si, Ying; | Zhang, Yan | Liu, Yefang

Affiliations: School of Mechanical Engineering, Tianjin University of Science and Technology, Tianjin 300222, China

Note: [] The authors declare that there are no conflicts of interest associated with this work.

Note: [] Corresponding author: Ying Si, School of Mechanical Engineering, Tianjin University of Science and Technology, Tianjin 300222, China. Tel.: +86 022-60273203; Fax: +86 022-60273495; E-mail: [email protected].

Keywords: The first metatarsophalangeal joint, constraint, gait analysis

DOI: 10.3233/BME-141073

Journal: Bio-Medical Materials and Engineering, vol. 24, no. 6, pp. 2577-2584, 2014

Published: 2014
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Abstract

The first metatarsophalangeal (MTP) joint is a critical component for normal walking. The present study aimed to investigate the effects of restricting the flexion-extension motion of the first MTP joint on human walking gait. Ten male participants were recruited to perform walking trials under barefoot (BF) and the first MTP joint constraint (FMJC) conditions, respectively. The results showed that there were statistically significant differences in walking speed and stride length. The characteristics of angular displacement in three lower limb joints and ground reaction force (GRF) were almost identical in BF and FMJC. However, maxima, minima and range of motion of three joint angles were significantly different. The utilized coefficient of friction (UCOF) increased significantly after FMJC, indicating that there may be a greater risk of slippage and falling when FMJC.

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