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Discomfort Evaluation of Truck Ingress/Egress Motions Based on Biomechanical Analysis

This paper presents a quantitative discomfort evaluation method based on biomechanical analysis results for human body movement, as well as its application to an assessment of the discomfort for truck ingress and egress. In this study, the motions of a human subject entering and exiting truck cabins...

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Detalles Bibliográficos
Autores principales: Choi, Nam-Chul, Lee, Sang Hun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4507608/
https://www.ncbi.nlm.nih.gov/pubmed/26067194
http://dx.doi.org/10.3390/s150613568
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author Choi, Nam-Chul
Lee, Sang Hun
author_facet Choi, Nam-Chul
Lee, Sang Hun
author_sort Choi, Nam-Chul
collection PubMed
description This paper presents a quantitative discomfort evaluation method based on biomechanical analysis results for human body movement, as well as its application to an assessment of the discomfort for truck ingress and egress. In this study, the motions of a human subject entering and exiting truck cabins with different types, numbers, and heights of footsteps were first measured using an optical motion capture system and load sensors. Next, the maximum voluntary contraction (MVC) ratios of the muscles were calculated through a biomechanical analysis of the musculoskeletal human model for the captured motion. Finally, the objective discomfort was evaluated using the proposed discomfort model based on the MVC ratios. To validate this new discomfort assessment method, human subject experiments were performed to investigate the subjective discomfort levels through a questionnaire for comparison with the objective discomfort levels. The validation results showed that the correlation between the objective and subjective discomforts was significant and could be described by a linear regression model.
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spelling pubmed-45076082015-07-22 Discomfort Evaluation of Truck Ingress/Egress Motions Based on Biomechanical Analysis Choi, Nam-Chul Lee, Sang Hun Sensors (Basel) Article This paper presents a quantitative discomfort evaluation method based on biomechanical analysis results for human body movement, as well as its application to an assessment of the discomfort for truck ingress and egress. In this study, the motions of a human subject entering and exiting truck cabins with different types, numbers, and heights of footsteps were first measured using an optical motion capture system and load sensors. Next, the maximum voluntary contraction (MVC) ratios of the muscles were calculated through a biomechanical analysis of the musculoskeletal human model for the captured motion. Finally, the objective discomfort was evaluated using the proposed discomfort model based on the MVC ratios. To validate this new discomfort assessment method, human subject experiments were performed to investigate the subjective discomfort levels through a questionnaire for comparison with the objective discomfort levels. The validation results showed that the correlation between the objective and subjective discomforts was significant and could be described by a linear regression model. MDPI 2015-06-10 /pmc/articles/PMC4507608/ /pubmed/26067194 http://dx.doi.org/10.3390/s150613568 Text en © 2015 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Choi, Nam-Chul
Lee, Sang Hun
Discomfort Evaluation of Truck Ingress/Egress Motions Based on Biomechanical Analysis
title Discomfort Evaluation of Truck Ingress/Egress Motions Based on Biomechanical Analysis
title_full Discomfort Evaluation of Truck Ingress/Egress Motions Based on Biomechanical Analysis
title_fullStr Discomfort Evaluation of Truck Ingress/Egress Motions Based on Biomechanical Analysis
title_full_unstemmed Discomfort Evaluation of Truck Ingress/Egress Motions Based on Biomechanical Analysis
title_short Discomfort Evaluation of Truck Ingress/Egress Motions Based on Biomechanical Analysis
title_sort discomfort evaluation of truck ingress/egress motions based on biomechanical analysis
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4507608/
https://www.ncbi.nlm.nih.gov/pubmed/26067194
http://dx.doi.org/10.3390/s150613568
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AT leesanghun discomfortevaluationoftruckingressegressmotionsbasedonbiomechanicalanalysis