Age-related changes in gait adaptability in response to unpredictable obstacles and stepping targets
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.gaitpost.2016.02.003 http://hdl.handle.net/11449/172616 |
Resumo: | Background: A large proportion of falls in older people occur when walking. Limitations in gait adaptability might contribute to tripping; a frequently reported cause of falls in this group. Objective: To evaluate age-related changes in gait adaptability in response to obstacles or stepping targets presented at short notice, i.e.: approximately two steps ahead. Methods: Fifty older adults (aged 74 ± 7 years; 34 females) and 21 young adults (aged 26 ± 4 years; 12 females) completed 3 usual gait speed (baseline) trials. They then completed the following randomly presented gait adaptability trials: obstacle avoidance, short stepping target, long stepping target and no target/obstacle (3 trials of each). Results: Compared with the young, the older adults slowed significantly in no target/obstacle trials compared with the baseline trials. They took more steps and spent more time in double support while approaching the obstacle and stepping targets, demonstrated poorer stepping accuracy and made more stepping errors (failed to hit the stepping targets/avoid the obstacle). The older adults also reduced velocity of the two preceding steps and shortened the previous step in the long stepping target condition and in the obstacle avoidance condition. Conclusion: Compared with their younger counterparts, the older adults exhibited a more conservative adaptation strategy characterised by slow, short and multiple steps with longer time in double support. Even so, they demonstrated poorer stepping accuracy and made more stepping errors. This reduced gait adaptability may place older adults at increased risk of falling when negotiating unexpected hazards. |
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Age-related changes in gait adaptability in response to unpredictable obstacles and stepping targetsAgedAgeingGait adaptabilityObstacle avoidanceStepping accuracyBackground: A large proportion of falls in older people occur when walking. Limitations in gait adaptability might contribute to tripping; a frequently reported cause of falls in this group. Objective: To evaluate age-related changes in gait adaptability in response to obstacles or stepping targets presented at short notice, i.e.: approximately two steps ahead. Methods: Fifty older adults (aged 74 ± 7 years; 34 females) and 21 young adults (aged 26 ± 4 years; 12 females) completed 3 usual gait speed (baseline) trials. They then completed the following randomly presented gait adaptability trials: obstacle avoidance, short stepping target, long stepping target and no target/obstacle (3 trials of each). Results: Compared with the young, the older adults slowed significantly in no target/obstacle trials compared with the baseline trials. They took more steps and spent more time in double support while approaching the obstacle and stepping targets, demonstrated poorer stepping accuracy and made more stepping errors (failed to hit the stepping targets/avoid the obstacle). The older adults also reduced velocity of the two preceding steps and shortened the previous step in the long stepping target condition and in the obstacle avoidance condition. Conclusion: Compared with their younger counterparts, the older adults exhibited a more conservative adaptation strategy characterised by slow, short and multiple steps with longer time in double support. Even so, they demonstrated poorer stepping accuracy and made more stepping errors. This reduced gait adaptability may place older adults at increased risk of falling when negotiating unexpected hazards.Neuroscience Research Australia University of New South WalesSchool of Public Health and oCommunity Medicine University of New South WalesInstitute for Biomedicine of Aging Friedrich-Alexander-University Erlangen-NurembergUNESP Univ Estadual Paulista Instituto de Biociências de Rio Claro Departamento de Educação Física Posture and Gait Studies LaboratorySchool of Medical Sciences University of New South WalesUNESP Univ Estadual Paulista Instituto de Biociências de Rio Claro Departamento de Educação Física Posture and Gait Studies LaboratoryUniversity of New South WalesFriedrich-Alexander-University Erlangen-NurembergUniversidade Estadual Paulista (Unesp)Caetano, Maria Joana D.Lord, Stephen R.Schoene, DanielPelicioni, Paulo H.S. [UNESP]Sturnieks, Daina L.Menant, Jasmine C.2018-12-11T17:01:27Z2018-12-11T17:01:27Z2016-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article35-41application/pdfhttp://dx.doi.org/10.1016/j.gaitpost.2016.02.003Gait and Posture, v. 46, p. 35-41.1879-22190966-6362http://hdl.handle.net/11449/17261610.1016/j.gaitpost.2016.02.0032-s2.0-849594402632-s2.0-84959440263.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengGait and Posture1,188info:eu-repo/semantics/openAccess2023-11-13T06:12:51Zoai:repositorio.unesp.br:11449/172616Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-11-13T06:12:51Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Age-related changes in gait adaptability in response to unpredictable obstacles and stepping targets |
title |
Age-related changes in gait adaptability in response to unpredictable obstacles and stepping targets |
spellingShingle |
Age-related changes in gait adaptability in response to unpredictable obstacles and stepping targets Caetano, Maria Joana D. Aged Ageing Gait adaptability Obstacle avoidance Stepping accuracy |
title_short |
Age-related changes in gait adaptability in response to unpredictable obstacles and stepping targets |
title_full |
Age-related changes in gait adaptability in response to unpredictable obstacles and stepping targets |
title_fullStr |
Age-related changes in gait adaptability in response to unpredictable obstacles and stepping targets |
title_full_unstemmed |
Age-related changes in gait adaptability in response to unpredictable obstacles and stepping targets |
title_sort |
Age-related changes in gait adaptability in response to unpredictable obstacles and stepping targets |
author |
Caetano, Maria Joana D. |
author_facet |
Caetano, Maria Joana D. Lord, Stephen R. Schoene, Daniel Pelicioni, Paulo H.S. [UNESP] Sturnieks, Daina L. Menant, Jasmine C. |
author_role |
author |
author2 |
Lord, Stephen R. Schoene, Daniel Pelicioni, Paulo H.S. [UNESP] Sturnieks, Daina L. Menant, Jasmine C. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
University of New South Wales Friedrich-Alexander-University Erlangen-Nuremberg Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Caetano, Maria Joana D. Lord, Stephen R. Schoene, Daniel Pelicioni, Paulo H.S. [UNESP] Sturnieks, Daina L. Menant, Jasmine C. |
dc.subject.por.fl_str_mv |
Aged Ageing Gait adaptability Obstacle avoidance Stepping accuracy |
topic |
Aged Ageing Gait adaptability Obstacle avoidance Stepping accuracy |
description |
Background: A large proportion of falls in older people occur when walking. Limitations in gait adaptability might contribute to tripping; a frequently reported cause of falls in this group. Objective: To evaluate age-related changes in gait adaptability in response to obstacles or stepping targets presented at short notice, i.e.: approximately two steps ahead. Methods: Fifty older adults (aged 74 ± 7 years; 34 females) and 21 young adults (aged 26 ± 4 years; 12 females) completed 3 usual gait speed (baseline) trials. They then completed the following randomly presented gait adaptability trials: obstacle avoidance, short stepping target, long stepping target and no target/obstacle (3 trials of each). Results: Compared with the young, the older adults slowed significantly in no target/obstacle trials compared with the baseline trials. They took more steps and spent more time in double support while approaching the obstacle and stepping targets, demonstrated poorer stepping accuracy and made more stepping errors (failed to hit the stepping targets/avoid the obstacle). The older adults also reduced velocity of the two preceding steps and shortened the previous step in the long stepping target condition and in the obstacle avoidance condition. Conclusion: Compared with their younger counterparts, the older adults exhibited a more conservative adaptation strategy characterised by slow, short and multiple steps with longer time in double support. Even so, they demonstrated poorer stepping accuracy and made more stepping errors. This reduced gait adaptability may place older adults at increased risk of falling when negotiating unexpected hazards. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-05-01 2018-12-11T17:01:27Z 2018-12-11T17:01:27Z |
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://dx.doi.org/10.1016/j.gaitpost.2016.02.003 Gait and Posture, v. 46, p. 35-41. 1879-2219 0966-6362 http://hdl.handle.net/11449/172616 10.1016/j.gaitpost.2016.02.003 2-s2.0-84959440263 2-s2.0-84959440263.pdf |
url |
http://dx.doi.org/10.1016/j.gaitpost.2016.02.003 http://hdl.handle.net/11449/172616 |
identifier_str_mv |
Gait and Posture, v. 46, p. 35-41. 1879-2219 0966-6362 10.1016/j.gaitpost.2016.02.003 2-s2.0-84959440263 2-s2.0-84959440263.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Gait and Posture 1,188 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
35-41 application/pdf |
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_ |
1803046463928795136 |