The helmet fit index - an intelligent tool for fit assessment and design customization

Helmet safety benefits are reduced if the headgear is poorly fitted on the wearer's head. At present, there are no industry standards available to assess objectively how a specific protective helmet fits a particular person. A proper fit is typically defined as a small and uniform distance betw...

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Main Authors: Ellena, Thierry, Subic, Aleksandar, Mustafa, Helmy, Toh, Yen Pang
Format: Article
Language:English
Published: Elsevier 2016
Subjects:
Online Access:http://eprints.uthm.edu.my/3164/1/AJ%202019%20%28115%29.pdf
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author Ellena, Thierry
Subic, Aleksandar
Mustafa, Helmy
Toh, Yen Pang
author_facet Ellena, Thierry
Subic, Aleksandar
Mustafa, Helmy
Toh, Yen Pang
author_sort Ellena, Thierry
collection UTHM
description Helmet safety benefits are reduced if the headgear is poorly fitted on the wearer's head. At present, there are no industry standards available to assess objectively how a specific protective helmet fits a particular person. A proper fit is typically defined as a small and uniform distance between the helmet liner and the wearer's head shape, with a broad coverage of the head area. This paper presents a novel method to investigate and compare fitting accuracy of helmets based on 3D anthropometry, reverse engineering techniques and computational analysis. The Helmet Fit Index (HFI) that provides a fit score on a scale from 0 (excessively poor fit) to 100 (perfect fit) was compared with subjective fit assessments of surveyed cyclists. Results in this study showed that quantitative (HFI) and qualitative (participants' feelings) data were related when comparing three commercially available bicycle helmets. Findings also demonstrated that females and Asian people have lower fit scores than males and Caucasians, respectively. The HFI could provide detailed understanding of helmet efficiency regarding fit and could be used during helmet design and development phases.
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spelling uthm.eprints-31642021-11-16T07:24:16Z http://eprints.uthm.edu.my/3164/ The helmet fit index - an intelligent tool for fit assessment and design customization Ellena, Thierry Subic, Aleksandar Mustafa, Helmy Toh, Yen Pang TL1-484 Motor vehicles. Cycles Helmet safety benefits are reduced if the headgear is poorly fitted on the wearer's head. At present, there are no industry standards available to assess objectively how a specific protective helmet fits a particular person. A proper fit is typically defined as a small and uniform distance between the helmet liner and the wearer's head shape, with a broad coverage of the head area. This paper presents a novel method to investigate and compare fitting accuracy of helmets based on 3D anthropometry, reverse engineering techniques and computational analysis. The Helmet Fit Index (HFI) that provides a fit score on a scale from 0 (excessively poor fit) to 100 (perfect fit) was compared with subjective fit assessments of surveyed cyclists. Results in this study showed that quantitative (HFI) and qualitative (participants' feelings) data were related when comparing three commercially available bicycle helmets. Findings also demonstrated that females and Asian people have lower fit scores than males and Caucasians, respectively. The HFI could provide detailed understanding of helmet efficiency regarding fit and could be used during helmet design and development phases. Elsevier 2016 Article PeerReviewed text en http://eprints.uthm.edu.my/3164/1/AJ%202019%20%28115%29.pdf Ellena, Thierry and Subic, Aleksandar and Mustafa, Helmy and Toh, Yen Pang (2016) The helmet fit index - an intelligent tool for fit assessment and design customization. Applied Ergonomics, 55. pp. 194-207. ISSN 0003-6870 http://dx.doi.org/10.1016/j.apergo.2016.02.008
spellingShingle TL1-484 Motor vehicles. Cycles
Ellena, Thierry
Subic, Aleksandar
Mustafa, Helmy
Toh, Yen Pang
The helmet fit index - an intelligent tool for fit assessment and design customization
title The helmet fit index - an intelligent tool for fit assessment and design customization
title_full The helmet fit index - an intelligent tool for fit assessment and design customization
title_fullStr The helmet fit index - an intelligent tool for fit assessment and design customization
title_full_unstemmed The helmet fit index - an intelligent tool for fit assessment and design customization
title_short The helmet fit index - an intelligent tool for fit assessment and design customization
title_sort helmet fit index an intelligent tool for fit assessment and design customization
topic TL1-484 Motor vehicles. Cycles
url http://eprints.uthm.edu.my/3164/1/AJ%202019%20%28115%29.pdf
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