Ground reaction forces during level ground walking with body weight unloading
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-35552014000600572&lng=en&nrm=iso&tlng=en http://hdl.handle.net/11449/130008 |
Resumo: | Background: Partial body weight support (BWS) systems have been broadly used with treadmills as a strategy for gait training of individuals with gait impairments. Considering that we usually walk on level ground and that BWS is achieved by altering the load on the plantar surface of the foot, it would be important to investigate some ground reaction force (GRF) parameters in healthy individuals walking on level ground with BWS to better implement rehabilitation protocols for individuals with gait impairments. Objective: To describe the effects of body weight unloading on GRF parameters as healthy young adults walked with BWS on level ground. Method: Eighteen healthy young adults (27 +/- 4 years old) walked on a walkway, with two force plates embedded in the middle of it, wearing a harness connected to a BWS system, with 0%, 15%, and 30% BWS. Vertical and horizontal peaks and vertical valley of GRF, weight acceptance and push-off rates, and impulse were calculated and compared across the three experimental conditions. Results: Overall, participants walked more slowly with the BWS system on level ground compared to their normal walking speed. As body weight unloading increased, the magnitude of the GRF forces decreased. Conversely, weight acceptance rate was similar among conditions. Conclusions: Different amounts of body weight unloading promote different outputs of GRF parameters, even with the same mean walk speed. The only parameter that was similar among the three experimental conditions was the weight acceptance rate. |
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Ground reaction forces during level ground walking with body weight unloadingGaitRehabilitationPartial body weight supportKineticsBackground: Partial body weight support (BWS) systems have been broadly used with treadmills as a strategy for gait training of individuals with gait impairments. Considering that we usually walk on level ground and that BWS is achieved by altering the load on the plantar surface of the foot, it would be important to investigate some ground reaction force (GRF) parameters in healthy individuals walking on level ground with BWS to better implement rehabilitation protocols for individuals with gait impairments. Objective: To describe the effects of body weight unloading on GRF parameters as healthy young adults walked with BWS on level ground. Method: Eighteen healthy young adults (27 +/- 4 years old) walked on a walkway, with two force plates embedded in the middle of it, wearing a harness connected to a BWS system, with 0%, 15%, and 30% BWS. Vertical and horizontal peaks and vertical valley of GRF, weight acceptance and push-off rates, and impulse were calculated and compared across the three experimental conditions. Results: Overall, participants walked more slowly with the BWS system on level ground compared to their normal walking speed. As body weight unloading increased, the magnitude of the GRF forces decreased. Conversely, weight acceptance rate was similar among conditions. Conclusions: Different amounts of body weight unloading promote different outputs of GRF parameters, even with the same mean walk speed. The only parameter that was similar among the three experimental conditions was the weight acceptance rate.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Universidade Cruzeiro do Sul, Laboratório de Análise do Movimento, Instituto de Ciências da Atividade Física e Esporte, São Paulo, SP, BrazilUniversidade Cruzeiro do Sul, Programa de Pós-graduação em Ciências do Movimento Humano, Instituto de Ciências da Atividade Física e Esporte, São Paulo, SP, BrazilUniversidade Estadual Paulista (UNESP), Departamento de Educação Física, Rio Claro, SP, BrazilUniversidade Estadual Paulista (UNESP), Departamento de Educação Física, Rio Claro, SP, BrazilFAPESP: 2010/15218-3FAPESP: 2009/15003-0FAPESP: 2012/14634-9Associacao Brasileira Pesquisa Pos-graduacao Fisioterapia-abrapg-ftUniversidade Cruzeiro do SulUniversidade Estadual Paulista (Unesp)Barela, Ana M. F.Freitas, Paulo B. deCelestino, Melissa L.Camargo, Marcela R.Barela, José A. [UNESP]2015-11-03T15:28:33Z2015-11-03T15:28:33Z2014-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article572-579application/pdfhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-35552014000600572&lng=en&nrm=iso&tlng=enBrazilian Journal Of Physical Therapy. Sao Carlos Sp: Associacao Brasileira Pesquisa Pos-graduacao Fisioterapia-abrapg-ft, v. 18, n. 6, p. 572-579, 2014.1413-3555http://hdl.handle.net/11449/13000810.1590/bjpt-rbf.2014.0058S1413-35552014000600572WOS:000347977900011S1413-35552014000600572.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Journal Of Physical Therapy1.6990,802info:eu-repo/semantics/openAccess2024-01-21T06:27:44Zoai:repositorio.unesp.br:11449/130008Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:37:56.997771Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Ground reaction forces during level ground walking with body weight unloading |
title |
Ground reaction forces during level ground walking with body weight unloading |
spellingShingle |
Ground reaction forces during level ground walking with body weight unloading Barela, Ana M. F. Gait Rehabilitation Partial body weight support Kinetics |
title_short |
Ground reaction forces during level ground walking with body weight unloading |
title_full |
Ground reaction forces during level ground walking with body weight unloading |
title_fullStr |
Ground reaction forces during level ground walking with body weight unloading |
title_full_unstemmed |
Ground reaction forces during level ground walking with body weight unloading |
title_sort |
Ground reaction forces during level ground walking with body weight unloading |
author |
Barela, Ana M. F. |
author_facet |
Barela, Ana M. F. Freitas, Paulo B. de Celestino, Melissa L. Camargo, Marcela R. Barela, José A. [UNESP] |
author_role |
author |
author2 |
Freitas, Paulo B. de Celestino, Melissa L. Camargo, Marcela R. Barela, José A. [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Cruzeiro do Sul Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Barela, Ana M. F. Freitas, Paulo B. de Celestino, Melissa L. Camargo, Marcela R. Barela, José A. [UNESP] |
dc.subject.por.fl_str_mv |
Gait Rehabilitation Partial body weight support Kinetics |
topic |
Gait Rehabilitation Partial body weight support Kinetics |
description |
Background: Partial body weight support (BWS) systems have been broadly used with treadmills as a strategy for gait training of individuals with gait impairments. Considering that we usually walk on level ground and that BWS is achieved by altering the load on the plantar surface of the foot, it would be important to investigate some ground reaction force (GRF) parameters in healthy individuals walking on level ground with BWS to better implement rehabilitation protocols for individuals with gait impairments. Objective: To describe the effects of body weight unloading on GRF parameters as healthy young adults walked with BWS on level ground. Method: Eighteen healthy young adults (27 +/- 4 years old) walked on a walkway, with two force plates embedded in the middle of it, wearing a harness connected to a BWS system, with 0%, 15%, and 30% BWS. Vertical and horizontal peaks and vertical valley of GRF, weight acceptance and push-off rates, and impulse were calculated and compared across the three experimental conditions. Results: Overall, participants walked more slowly with the BWS system on level ground compared to their normal walking speed. As body weight unloading increased, the magnitude of the GRF forces decreased. Conversely, weight acceptance rate was similar among conditions. Conclusions: Different amounts of body weight unloading promote different outputs of GRF parameters, even with the same mean walk speed. The only parameter that was similar among the three experimental conditions was the weight acceptance rate. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-11-01 2015-11-03T15:28:33Z 2015-11-03T15:28:33Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-35552014000600572&lng=en&nrm=iso&tlng=en Brazilian Journal Of Physical Therapy. Sao Carlos Sp: Associacao Brasileira Pesquisa Pos-graduacao Fisioterapia-abrapg-ft, v. 18, n. 6, p. 572-579, 2014. 1413-3555 http://hdl.handle.net/11449/130008 10.1590/bjpt-rbf.2014.0058 S1413-35552014000600572 WOS:000347977900011 S1413-35552014000600572.pdf |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-35552014000600572&lng=en&nrm=iso&tlng=en http://hdl.handle.net/11449/130008 |
identifier_str_mv |
Brazilian Journal Of Physical Therapy. Sao Carlos Sp: Associacao Brasileira Pesquisa Pos-graduacao Fisioterapia-abrapg-ft, v. 18, n. 6, p. 572-579, 2014. 1413-3555 10.1590/bjpt-rbf.2014.0058 S1413-35552014000600572 WOS:000347977900011 S1413-35552014000600572.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Brazilian Journal Of Physical Therapy 1.699 0,802 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
572-579 application/pdf |
dc.publisher.none.fl_str_mv |
Associacao Brasileira Pesquisa Pos-graduacao Fisioterapia-abrapg-ft |
publisher.none.fl_str_mv |
Associacao Brasileira Pesquisa Pos-graduacao Fisioterapia-abrapg-ft |
dc.source.none.fl_str_mv |
Web of Science 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 |
|
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1808129537705246720 |