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Open AccessArticle

Association of Arch Stiffness with Plantar Impulse Distribution during Walking, Running, and Gait Termination

1
Faculty of Sports Science, Ningbo University, Ningbo 315211, China
2
Department of Sport and Physical Education, Hong Kong Baptist University, Hong Kong, China
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2020, 17(6), 2090; https://doi.org/10.3390/ijerph17062090
Received: 23 January 2020 / Revised: 20 March 2020 / Accepted: 20 March 2020 / Published: 21 March 2020
(This article belongs to the Special Issue Podiatry and Health)
The purpose of this study was to determine relationships between arch stiffness and relative regional impulse during walking, running, and stopping. A total of 61 asymptomatic male subjects volunteered to participate in the study. All were classified by calculating the arch stiffness index using 3-dimensional foot morphological scanning. Plantar pressure distribution data were collected from participants using a Footscan pressure platform during gait tests that included walking, running, and gait termination. The stiff arches group (n = 19) and flexible arches group (n = 17) were included in the following data analysis. The results suggested that subjects with stiffer arches had a larger and smaller percentage of plantar impulse in the forefoot and rearfoot, respectively, than subjects with more flexible arches during walking and running. However, during gait termination, which included planned and unplanned gait stopping, the plantar impulse distribution pattern was found to be reversed. The current findings demonstrate that the distributional changes of plantar loading follow unidirectional transfer between the forefoot and the rearfoot on the plantar longitudinal axis. Moreover, the patterns of impulse distribution are also different based on different gait task mechanisms. View Full-Text
Keywords: arch stiffness index; unplanned gait termination; gait stop; impulse; arch structure arch stiffness index; unplanned gait termination; gait stop; impulse; arch structure
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Cen, X.; Xu, D.; Baker, J.S.; Gu, Y. Association of Arch Stiffness with Plantar Impulse Distribution during Walking, Running, and Gait Termination. Int. J. Environ. Res. Public Health 2020, 17, 2090.

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