Experimental Analysis of the Distribution of Traction Coefficient in the Shoe-Ground Contact Area during Running

Relationship between shoe grip properties and distributions of traction coefficient, which is obtained from horizontal ground reaction force (GRF) divided by normal GRF, were experimentally investigated during running. The experiments were conducted with sensor shoes mounted miniature triaxial force...

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Main Authors: Kenta Moriyasu, Tsuyoshi Nishiwaki, Takeshi Yamaguchi, Kazuo Hokkirigawa
Format: Article
Language:English
Published: Japanese Society of Tribologists 2012-12-01
Series:Tribology Online
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/trol/7/4/7_267/_pdf/-char/en
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author Kenta Moriyasu
Tsuyoshi Nishiwaki
Takeshi Yamaguchi
Kazuo Hokkirigawa
author_facet Kenta Moriyasu
Tsuyoshi Nishiwaki
Takeshi Yamaguchi
Kazuo Hokkirigawa
author_sort Kenta Moriyasu
collection DOAJ
description Relationship between shoe grip properties and distributions of traction coefficient, which is obtained from horizontal ground reaction force (GRF) divided by normal GRF, were experimentally investigated during running. The experiments were conducted with sensor shoes mounted miniature triaxial force sensors for the measurement of GRF distributions in contact area. In order to clarify influence of the grip property on GRF vectors distributions and traction coefficient distributions, two typed sensor shoes having different outer sole materials with high/low friction coefficients were developed. The results showed that traction coefficients for the low grip typed shoe decreased in the whole contact area at the end of stance phase during running. Furthermore, it was confirmed that contact area, directions of GRF vectors and traction coefficients locally changed depending on the grip property. As a result of relationship between distributions of propulsion force components at 19 local positions and stride length, production of propulsion force beneath toe area can efficiently acquire sufficient stride length to keep running speed.
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spelling doaj.art-a334aba7ea1346f7b5ff0393481884c32022-12-21T20:07:42ZengJapanese Society of TribologistsTribology Online1881-21982012-12-017426727310.2474/trol.7.267trolExperimental Analysis of the Distribution of Traction Coefficient in the Shoe-Ground Contact Area during RunningKenta Moriyasu0Tsuyoshi Nishiwaki1Takeshi Yamaguchi2Kazuo Hokkirigawa3Institute of Sport Science, ASICS CorporationInstitute of Sport Science, ASICS CorporationGraduate School of Engineering, Tohoku UniversityGraduate School of Engineering, Tohoku UniversityRelationship between shoe grip properties and distributions of traction coefficient, which is obtained from horizontal ground reaction force (GRF) divided by normal GRF, were experimentally investigated during running. The experiments were conducted with sensor shoes mounted miniature triaxial force sensors for the measurement of GRF distributions in contact area. In order to clarify influence of the grip property on GRF vectors distributions and traction coefficient distributions, two typed sensor shoes having different outer sole materials with high/low friction coefficients were developed. The results showed that traction coefficients for the low grip typed shoe decreased in the whole contact area at the end of stance phase during running. Furthermore, it was confirmed that contact area, directions of GRF vectors and traction coefficients locally changed depending on the grip property. As a result of relationship between distributions of propulsion force components at 19 local positions and stride length, production of propulsion force beneath toe area can efficiently acquire sufficient stride length to keep running speed.https://www.jstage.jst.go.jp/article/trol/7/4/7_267/_pdf/-char/enshoesgrip propertyground reaction forcetraction coefficient distributiontribology
spellingShingle Kenta Moriyasu
Tsuyoshi Nishiwaki
Takeshi Yamaguchi
Kazuo Hokkirigawa
Experimental Analysis of the Distribution of Traction Coefficient in the Shoe-Ground Contact Area during Running
Tribology Online
shoes
grip property
ground reaction force
traction coefficient distribution
tribology
title Experimental Analysis of the Distribution of Traction Coefficient in the Shoe-Ground Contact Area during Running
title_full Experimental Analysis of the Distribution of Traction Coefficient in the Shoe-Ground Contact Area during Running
title_fullStr Experimental Analysis of the Distribution of Traction Coefficient in the Shoe-Ground Contact Area during Running
title_full_unstemmed Experimental Analysis of the Distribution of Traction Coefficient in the Shoe-Ground Contact Area during Running
title_short Experimental Analysis of the Distribution of Traction Coefficient in the Shoe-Ground Contact Area during Running
title_sort experimental analysis of the distribution of traction coefficient in the shoe ground contact area during running
topic shoes
grip property
ground reaction force
traction coefficient distribution
tribology
url https://www.jstage.jst.go.jp/article/trol/7/4/7_267/_pdf/-char/en
work_keys_str_mv AT kentamoriyasu experimentalanalysisofthedistributionoftractioncoefficientintheshoegroundcontactareaduringrunning
AT tsuyoshinishiwaki experimentalanalysisofthedistributionoftractioncoefficientintheshoegroundcontactareaduringrunning
AT takeshiyamaguchi experimentalanalysisofthedistributionoftractioncoefficientintheshoegroundcontactareaduringrunning
AT kazuohokkirigawa experimentalanalysisofthedistributionoftractioncoefficientintheshoegroundcontactareaduringrunning