Handle diameter and the influence on the ergonomics of crutches
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/175894 |
Resumo: | The research in the field of ergonomics can contribute to the design process of Assistive Technologies using objective and subjective data measurements. The auxiliary crutches are assistive devices commonly used in the process of rehabilitation after lower-extremity injuries. However, for many subjects, walking with crutches in not an easy and comfortable task, as the loads on the upper limbs are substantial and expose the users to potentially harmful long-term effects. In this way, the objective of this study was, first, to report the evaluation of the user-crutch interface by using an objective measurement of the subjects’ muscular activity and exertion perception, and to discuss how objective data measured from the subjects can contribute for the design of the interface. Eleven able-bodied subjects participated. The test protocol consisted of 3 trials of walking with crutches, each one with a different hand diameter, namely 20 mm, 32 mm and 40 mm. Surface electromyography of forearms muscles was collected, and perceived exertion was measured using the Borg’s Scale. The mean of maximum EMG values showed that the highest values activity happened in the extensor digitorum muscle using the largest handles. However, the smallest handles increase electromyography activity in the flexor digitorum superficialis muscle. Statistically significant difference was found between the smaller and the larger handle diameter. The analysis of exertion perception did not show statistical difference in any of the situations investigated. Handle diameter was shown to be a factor affecting the biomechanics of the walking with crutches. In addition, ergonomic evaluation can provide objective measurements that, ultimately, May be applied in the improvement of user-product interface. |
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Handle diameter and the influence on the ergonomics of crutchesAxillary crutchesElectromyographyExertion perceptionHandle designWalkingThe research in the field of ergonomics can contribute to the design process of Assistive Technologies using objective and subjective data measurements. The auxiliary crutches are assistive devices commonly used in the process of rehabilitation after lower-extremity injuries. However, for many subjects, walking with crutches in not an easy and comfortable task, as the loads on the upper limbs are substantial and expose the users to potentially harmful long-term effects. In this way, the objective of this study was, first, to report the evaluation of the user-crutch interface by using an objective measurement of the subjects’ muscular activity and exertion perception, and to discuss how objective data measured from the subjects can contribute for the design of the interface. Eleven able-bodied subjects participated. The test protocol consisted of 3 trials of walking with crutches, each one with a different hand diameter, namely 20 mm, 32 mm and 40 mm. Surface electromyography of forearms muscles was collected, and perceived exertion was measured using the Borg’s Scale. The mean of maximum EMG values showed that the highest values activity happened in the extensor digitorum muscle using the largest handles. However, the smallest handles increase electromyography activity in the flexor digitorum superficialis muscle. Statistically significant difference was found between the smaller and the larger handle diameter. The analysis of exertion perception did not show statistical difference in any of the situations investigated. Handle diameter was shown to be a factor affecting the biomechanics of the walking with crutches. In addition, ergonomic evaluation can provide objective measurements that, ultimately, May be applied in the improvement of user-product interface.Graduate Programme in Design UNESP - Univ. Estadual PaulistaDepartment of Computer Science Faculty of Technology Art and DesignAkershus University College of Applied SciencesGraduate Programme in Design UNESP - Univ. Estadual PaulistaUniversidade Estadual Paulista (Unesp)Art and DesignCollege of Applied SciencesDa Silva Bertolaccini, Guilherme [UNESP]Vasquez, Melissa Marin [UNESP]Bianchi, Ana Carolina [UNESP]Sandes, Frode EikaPaschoarelli, Luis Carlos [UNESP]Medola, Fausto Orsi [UNESP]2018-12-11T17:18:02Z2018-12-11T17:18:02Z2017-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject631-636Proceedings of the 19th International Conference on Engineering and Product Design Education: Building Community: Design Education for a Sustainable Future, E and PDE 2017, p. 631-636.http://hdl.handle.net/11449/1758942-s2.0-850421161848521603444193259Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengProceedings of the 19th International Conference on Engineering and Product Design Education: Building Community: Design Education for a Sustainable Future, E and PDE 2017info:eu-repo/semantics/openAccess2024-04-17T18:29:11Zoai:repositorio.unesp.br:11449/175894Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:39:53.755872Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Handle diameter and the influence on the ergonomics of crutches |
title |
Handle diameter and the influence on the ergonomics of crutches |
spellingShingle |
Handle diameter and the influence on the ergonomics of crutches Da Silva Bertolaccini, Guilherme [UNESP] Axillary crutches Electromyography Exertion perception Handle design Walking |
title_short |
Handle diameter and the influence on the ergonomics of crutches |
title_full |
Handle diameter and the influence on the ergonomics of crutches |
title_fullStr |
Handle diameter and the influence on the ergonomics of crutches |
title_full_unstemmed |
Handle diameter and the influence on the ergonomics of crutches |
title_sort |
Handle diameter and the influence on the ergonomics of crutches |
author |
Da Silva Bertolaccini, Guilherme [UNESP] |
author_facet |
Da Silva Bertolaccini, Guilherme [UNESP] Vasquez, Melissa Marin [UNESP] Bianchi, Ana Carolina [UNESP] Sandes, Frode Eika Paschoarelli, Luis Carlos [UNESP] Medola, Fausto Orsi [UNESP] |
author_role |
author |
author2 |
Vasquez, Melissa Marin [UNESP] Bianchi, Ana Carolina [UNESP] Sandes, Frode Eika Paschoarelli, Luis Carlos [UNESP] Medola, Fausto Orsi [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Art and Design College of Applied Sciences |
dc.contributor.author.fl_str_mv |
Da Silva Bertolaccini, Guilherme [UNESP] Vasquez, Melissa Marin [UNESP] Bianchi, Ana Carolina [UNESP] Sandes, Frode Eika Paschoarelli, Luis Carlos [UNESP] Medola, Fausto Orsi [UNESP] |
dc.subject.por.fl_str_mv |
Axillary crutches Electromyography Exertion perception Handle design Walking |
topic |
Axillary crutches Electromyography Exertion perception Handle design Walking |
description |
The research in the field of ergonomics can contribute to the design process of Assistive Technologies using objective and subjective data measurements. The auxiliary crutches are assistive devices commonly used in the process of rehabilitation after lower-extremity injuries. However, for many subjects, walking with crutches in not an easy and comfortable task, as the loads on the upper limbs are substantial and expose the users to potentially harmful long-term effects. In this way, the objective of this study was, first, to report the evaluation of the user-crutch interface by using an objective measurement of the subjects’ muscular activity and exertion perception, and to discuss how objective data measured from the subjects can contribute for the design of the interface. Eleven able-bodied subjects participated. The test protocol consisted of 3 trials of walking with crutches, each one with a different hand diameter, namely 20 mm, 32 mm and 40 mm. Surface electromyography of forearms muscles was collected, and perceived exertion was measured using the Borg’s Scale. The mean of maximum EMG values showed that the highest values activity happened in the extensor digitorum muscle using the largest handles. However, the smallest handles increase electromyography activity in the flexor digitorum superficialis muscle. Statistically significant difference was found between the smaller and the larger handle diameter. The analysis of exertion perception did not show statistical difference in any of the situations investigated. Handle diameter was shown to be a factor affecting the biomechanics of the walking with crutches. In addition, ergonomic evaluation can provide objective measurements that, ultimately, May be applied in the improvement of user-product interface. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-01 2018-12-11T17:18:02Z 2018-12-11T17:18:02Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Proceedings of the 19th International Conference on Engineering and Product Design Education: Building Community: Design Education for a Sustainable Future, E and PDE 2017, p. 631-636. http://hdl.handle.net/11449/175894 2-s2.0-85042116184 8521603444193259 |
identifier_str_mv |
Proceedings of the 19th International Conference on Engineering and Product Design Education: Building Community: Design Education for a Sustainable Future, E and PDE 2017, p. 631-636. 2-s2.0-85042116184 8521603444193259 |
url |
http://hdl.handle.net/11449/175894 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Proceedings of the 19th International Conference on Engineering and Product Design Education: Building Community: Design Education for a Sustainable Future, E and PDE 2017 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
631-636 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128547586310144 |