Infuence of the load exerted over a forearm crutch in spatiotemporal step parameters during assisted gait: pilot study

Background: Assisted gait with forearm crutches is frequently performed during the recovery of musculoskeletal injuries of the lower limb. The amount of body weight applied to the crutch or crutches depends on the pathology and the treatment phase. The transition from assisted gait with two crutches...

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Autores: Ridao Fernández, María Del Carmen, Chamorro Moriana, Gema, Ojeda Granja, Joaquín
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/107573
Acceso en línea:https://hdl.handle.net/11441/107573
https://doi.org/10.1186/s12938-018-0527-z
Access Level:acceso abierto
Palabra clave:Assisted walking
Forearm crutches
Load
Step parameters
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spelling Infuence of the load exerted over a forearm crutch in spatiotemporal step parameters during assisted gait: pilot studyRidao Fernández, María Del CarmenChamorro Moriana, GemaOjeda Granja, JoaquínAssisted walkingForearm crutchesLoadStep parametersBackground: Assisted gait with forearm crutches is frequently performed during the recovery of musculoskeletal injuries of the lower limb. The amount of body weight applied to the crutch or crutches depends on the pathology and the treatment phase. The transition from assisted gait with two crutches to a single crutch is usually rec‑ ommended when the subject is able to load the 50% of the body weight upon the afected member. An altered assisted gait will cause biomechanic alterations and, therefore, longer treatments and relapses. The aim of this study was to analyze the infuence of 10, 25 and 50% of body weight applied to a forearm crutch during a uni‑ lateral assisted gait in the spatial and temporal step parameters to determine the load that produces alterations in gait biomechanics and the load that does not. Methods: Eleven healthy subjects performed normal gait (NG) and assisted gait with a forearm crutch, in which the applied loads were: comfortable (C), 25 and 50% of their body weight. Vicon System was employed for gait recording. GCH System 2.0 and GCH Control Software 1.0 controlled the loads. The variables were: step length, step period, velocity, step width and step angle. Friedman test compared all the gait modalities: NG and the diferent loads. Wilcoxon signed-rank test analyzed ipsilateral and contralateral step parameters to the crutch globally and for each subject. Results: Friedman test showed signifcant diferences between NG, C, 25 and 50%, especially for step period and velocity. Wilcoxon test had signifcant diferences only in 4 of the 20 general comparisons between ipsilateral and contralateral steps to the crutch. In the analysis by subjects, step length, step period and velocity showed 79/132, 110/132 and 58/66 signifcant diferences, respectively. Conclusions: The increase in the load exerted over a forearm crutch produced an increase in the step period, accompanied by a reduction of step length and gait veloc‑ ity. Step width and step angle were not modifed. The unloading of 25 and 50% of body weight on a single crutch is incorrect from the biomechanical point of view. Two crutches should be employed when the body weight to unload exceeds 10%.FisioterapiaIngeniería Mecánica y FabricaciónThe authors would like to thank the DPI2013-44371-P and the DPI2016-80796-9 Projects at the Spanish Ministry of Economics and Competitiveness; and the Telefonica Chair “Intelligence in Networks” of the University of Seville, Spain; for their contribution in our study2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/107573https://doi.org/10.1186/s12938-018-0527-zreponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésBioMedical Engineering OnLine, 17 (98)https://doi.org/10.1186/s12938-018-0527-zinfo:eu-repo/semantics/openAccessoai:idus.us.es:11441/1075732026-06-17T12:51:07Z
dc.title.none.fl_str_mv Infuence of the load exerted over a forearm crutch in spatiotemporal step parameters during assisted gait: pilot study
title Infuence of the load exerted over a forearm crutch in spatiotemporal step parameters during assisted gait: pilot study
spellingShingle Infuence of the load exerted over a forearm crutch in spatiotemporal step parameters during assisted gait: pilot study
Ridao Fernández, María Del Carmen
Assisted walking
Forearm crutches
Load
Step parameters
title_short Infuence of the load exerted over a forearm crutch in spatiotemporal step parameters during assisted gait: pilot study
title_full Infuence of the load exerted over a forearm crutch in spatiotemporal step parameters during assisted gait: pilot study
title_fullStr Infuence of the load exerted over a forearm crutch in spatiotemporal step parameters during assisted gait: pilot study
title_full_unstemmed Infuence of the load exerted over a forearm crutch in spatiotemporal step parameters during assisted gait: pilot study
title_sort Infuence of the load exerted over a forearm crutch in spatiotemporal step parameters during assisted gait: pilot study
dc.creator.none.fl_str_mv Ridao Fernández, María Del Carmen
Chamorro Moriana, Gema
Ojeda Granja, Joaquín
author Ridao Fernández, María Del Carmen
author_facet Ridao Fernández, María Del Carmen
Chamorro Moriana, Gema
Ojeda Granja, Joaquín
author_role author
author2 Chamorro Moriana, Gema
Ojeda Granja, Joaquín
author2_role author
author
dc.contributor.none.fl_str_mv Fisioterapia
Ingeniería Mecánica y Fabricación
The authors would like to thank the DPI2013-44371-P and the DPI2016-80796-9 Projects at the Spanish Ministry of Economics and Competitiveness; and the Telefonica Chair “Intelligence in Networks” of the University of Seville, Spain; for their contribution in our study
dc.subject.none.fl_str_mv Assisted walking
Forearm crutches
Load
Step parameters
topic Assisted walking
Forearm crutches
Load
Step parameters
description Background: Assisted gait with forearm crutches is frequently performed during the recovery of musculoskeletal injuries of the lower limb. The amount of body weight applied to the crutch or crutches depends on the pathology and the treatment phase. The transition from assisted gait with two crutches to a single crutch is usually rec‑ ommended when the subject is able to load the 50% of the body weight upon the afected member. An altered assisted gait will cause biomechanic alterations and, therefore, longer treatments and relapses. The aim of this study was to analyze the infuence of 10, 25 and 50% of body weight applied to a forearm crutch during a uni‑ lateral assisted gait in the spatial and temporal step parameters to determine the load that produces alterations in gait biomechanics and the load that does not. Methods: Eleven healthy subjects performed normal gait (NG) and assisted gait with a forearm crutch, in which the applied loads were: comfortable (C), 25 and 50% of their body weight. Vicon System was employed for gait recording. GCH System 2.0 and GCH Control Software 1.0 controlled the loads. The variables were: step length, step period, velocity, step width and step angle. Friedman test compared all the gait modalities: NG and the diferent loads. Wilcoxon signed-rank test analyzed ipsilateral and contralateral step parameters to the crutch globally and for each subject. Results: Friedman test showed signifcant diferences between NG, C, 25 and 50%, especially for step period and velocity. Wilcoxon test had signifcant diferences only in 4 of the 20 general comparisons between ipsilateral and contralateral steps to the crutch. In the analysis by subjects, step length, step period and velocity showed 79/132, 110/132 and 58/66 signifcant diferences, respectively. Conclusions: The increase in the load exerted over a forearm crutch produced an increase in the step period, accompanied by a reduction of step length and gait veloc‑ ity. Step width and step angle were not modifed. The unloading of 25 and 50% of body weight on a single crutch is incorrect from the biomechanical point of view. Two crutches should be employed when the body weight to unload exceeds 10%.
publishDate 2018
dc.date.none.fl_str_mv 2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/107573
https://doi.org/10.1186/s12938-018-0527-z
url https://hdl.handle.net/11441/107573
https://doi.org/10.1186/s12938-018-0527-z
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv BioMedical Engineering OnLine, 17 (98)
https://doi.org/10.1186/s12938-018-0527-z
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
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