Novel Thermal Analysis Model of the Foot-Shoe Sole Interface during Gait Motion

Excessive heat at the foot-shoe sole interface negatively affects a human’s thermal comfort. An understanding of the thermal behavior at this interface is important for alleviating this discomfort. During gait motion, a human’s body weight cyclically compresses a shoe sole (commonly constructed of v...

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Main Authors: Yasuhiro Shimazaki, Kazutoshi Aisaka
Format: Article
Language:English
Published: MDPI AG 2018-02-01
Series:Proceedings
Subjects:
Online Access:http://www.mdpi.com/2504-3900/2/6/278
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author Yasuhiro Shimazaki
Kazutoshi Aisaka
author_facet Yasuhiro Shimazaki
Kazutoshi Aisaka
author_sort Yasuhiro Shimazaki
collection DOAJ
description Excessive heat at the foot-shoe sole interface negatively affects a human’s thermal comfort. An understanding of the thermal behavior at this interface is important for alleviating this discomfort. During gait motion, a human’s body weight cyclically compresses a shoe sole (commonly constructed of viscoelastic materials), generating heat during loading. To evaluate the thermal effects of this internal heat generation on foot comfort, we developed and empirically validated a thermal analysis model during gait motion. A simple, one-dimensional prediction model for heat conduction with heat generation during compressive loading was used. Heat generation was estimated as a function of the shoe sole’s material properties (e.g., elastic modulus) and various gait parameters. When compared with experimental results, the proposed model proved effective in predicting thermal behavior at the foot-shoe sole interface under various conditions and shows potential for improving a human’s thermal comfort during gait motion through informed footwear design.
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spelling doaj.art-373f9178a65942cbbe9824e8883307472024-10-02T18:13:13ZengMDPI AGProceedings2504-39002018-02-012627810.3390/proceedings2060278proceedings2060278Novel Thermal Analysis Model of the Foot-Shoe Sole Interface during Gait MotionYasuhiro Shimazaki0Kazutoshi Aisaka1Department of Human Information Engineering, Okayama Prefectural University, Soja 719-1197, JapanDepartment of Human Information Engineering, Okayama Prefectural University, Soja 719-1197, JapanExcessive heat at the foot-shoe sole interface negatively affects a human’s thermal comfort. An understanding of the thermal behavior at this interface is important for alleviating this discomfort. During gait motion, a human’s body weight cyclically compresses a shoe sole (commonly constructed of viscoelastic materials), generating heat during loading. To evaluate the thermal effects of this internal heat generation on foot comfort, we developed and empirically validated a thermal analysis model during gait motion. A simple, one-dimensional prediction model for heat conduction with heat generation during compressive loading was used. Heat generation was estimated as a function of the shoe sole’s material properties (e.g., elastic modulus) and various gait parameters. When compared with experimental results, the proposed model proved effective in predicting thermal behavior at the foot-shoe sole interface under various conditions and shows potential for improving a human’s thermal comfort during gait motion through informed footwear design.http://www.mdpi.com/2504-3900/2/6/278heat transferfootwearcomfortethylene-vinyl acetate (EVA) rubberfoot contactmodelingwalking
spellingShingle Yasuhiro Shimazaki
Kazutoshi Aisaka
Novel Thermal Analysis Model of the Foot-Shoe Sole Interface during Gait Motion
Proceedings
heat transfer
footwear
comfort
ethylene-vinyl acetate (EVA) rubber
foot contact
modeling
walking
title Novel Thermal Analysis Model of the Foot-Shoe Sole Interface during Gait Motion
title_full Novel Thermal Analysis Model of the Foot-Shoe Sole Interface during Gait Motion
title_fullStr Novel Thermal Analysis Model of the Foot-Shoe Sole Interface during Gait Motion
title_full_unstemmed Novel Thermal Analysis Model of the Foot-Shoe Sole Interface during Gait Motion
title_short Novel Thermal Analysis Model of the Foot-Shoe Sole Interface during Gait Motion
title_sort novel thermal analysis model of the foot shoe sole interface during gait motion
topic heat transfer
footwear
comfort
ethylene-vinyl acetate (EVA) rubber
foot contact
modeling
walking
url http://www.mdpi.com/2504-3900/2/6/278
work_keys_str_mv AT yasuhiroshimazaki novelthermalanalysismodelofthefootshoesoleinterfaceduringgaitmotion
AT kazutoshiaisaka novelthermalanalysismodelofthefootshoesoleinterfaceduringgaitmotion