Effects of fatigue induced by prolonged gait when walking on the elderly

Detalhes bibliográficos
Autor(a) principal: Pereira, Marcelo [UNESP]
Data de Publicação: 2011
Outros Autores: Gonçalves, Mauro [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.2478/v10038-011-0025-7
http://hdl.handle.net/11449/72642
Resumo: Purpose. Fatigue has been pointed as a fall risk in the elderly; however, the effects of prolonged gait on neuromuscular recruitment and on its pattern remain unknown. The aim of this study was to evaluate the effects of prolonged gait on neuromuscular recruitment levels and spatial-temporal gait variables. Methods. Eight healthy older women (age: 72.63 ± 6.55 years) walked at their preferred walking speed for twenty minutes on a treadmill. The Root Mean Square (RMS) from the vastus-lateralis, femoral biceps, tibialis anterior and lateral gastrocnemius muscles were determined at the first and last minute of the test during the moments of Heel Strike (HS), Terminal Stance and Terminal Swing (TS). In addition, coactivation in the knee and ankle as well as the stride cadence and length were measured in the test. The two RMS data (taken at the first and last minute) were compared by means of a Student's t-test. Results. Twenty minutes of walking induced fatigue in the subjects, as observed through an increase in RMS, notably during the HS and TS. Coactivation was also influenced by the prolonged gait test. The only gait phase where a risk of falling was enhanced was the HS. Nonetheless, subjects developed strategies to maintain a safe motor pattern, which was evidenced by an increase in stride length and a decrease in stride cadence. Conclusion. Tests lasting just twenty minutes on a treadmill were enough to induce fatigue in older adults. However, the level of fatigue was not enough to present a danger or fall risk to elderly individuals.
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spelling Effects of fatigue induced by prolonged gait when walking on the elderlyageingelectromyographyfatiguekinematicwalkingPurpose. Fatigue has been pointed as a fall risk in the elderly; however, the effects of prolonged gait on neuromuscular recruitment and on its pattern remain unknown. The aim of this study was to evaluate the effects of prolonged gait on neuromuscular recruitment levels and spatial-temporal gait variables. Methods. Eight healthy older women (age: 72.63 ± 6.55 years) walked at their preferred walking speed for twenty minutes on a treadmill. The Root Mean Square (RMS) from the vastus-lateralis, femoral biceps, tibialis anterior and lateral gastrocnemius muscles were determined at the first and last minute of the test during the moments of Heel Strike (HS), Terminal Stance and Terminal Swing (TS). In addition, coactivation in the knee and ankle as well as the stride cadence and length were measured in the test. The two RMS data (taken at the first and last minute) were compared by means of a Student's t-test. Results. Twenty minutes of walking induced fatigue in the subjects, as observed through an increase in RMS, notably during the HS and TS. Coactivation was also influenced by the prolonged gait test. The only gait phase where a risk of falling was enhanced was the HS. Nonetheless, subjects developed strategies to maintain a safe motor pattern, which was evidenced by an increase in stride length and a decrease in stride cadence. Conclusion. Tests lasting just twenty minutes on a treadmill were enough to induce fatigue in older adults. However, the level of fatigue was not enough to present a danger or fall risk to elderly individuals.São Paulo State University, São PauloAnhanguera College of Rio Claro, Rio ClaroSão Paulo State University, São PauloUniversidade Estadual Paulista (Unesp)Anhanguera College of Rio ClaroPereira, Marcelo [UNESP]Gonçalves, Mauro [UNESP]2014-05-27T11:25:59Z2014-05-27T11:25:59Z2011-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article242-247application/pdfhttp://dx.doi.org/10.2478/v10038-011-0025-7Human Movement, v. 12, n. 3, p. 242-247, 2011.1732-3991http://hdl.handle.net/11449/7264210.2478/v10038-011-0025-72-s2.0-800533036592-s2.0-80053303659.pdf3023304896722902Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengHuman Movement0,194info:eu-repo/semantics/openAccess2023-10-25T06:13:01Zoai:repositorio.unesp.br:11449/72642Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:58:35.652510Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Effects of fatigue induced by prolonged gait when walking on the elderly
title Effects of fatigue induced by prolonged gait when walking on the elderly
spellingShingle Effects of fatigue induced by prolonged gait when walking on the elderly
Pereira, Marcelo [UNESP]
ageing
electromyography
fatigue
kinematic
walking
title_short Effects of fatigue induced by prolonged gait when walking on the elderly
title_full Effects of fatigue induced by prolonged gait when walking on the elderly
title_fullStr Effects of fatigue induced by prolonged gait when walking on the elderly
title_full_unstemmed Effects of fatigue induced by prolonged gait when walking on the elderly
title_sort Effects of fatigue induced by prolonged gait when walking on the elderly
author Pereira, Marcelo [UNESP]
author_facet Pereira, Marcelo [UNESP]
Gonçalves, Mauro [UNESP]
author_role author
author2 Gonçalves, Mauro [UNESP]
author2_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Anhanguera College of Rio Claro
dc.contributor.author.fl_str_mv Pereira, Marcelo [UNESP]
Gonçalves, Mauro [UNESP]
dc.subject.por.fl_str_mv ageing
electromyography
fatigue
kinematic
walking
topic ageing
electromyography
fatigue
kinematic
walking
description Purpose. Fatigue has been pointed as a fall risk in the elderly; however, the effects of prolonged gait on neuromuscular recruitment and on its pattern remain unknown. The aim of this study was to evaluate the effects of prolonged gait on neuromuscular recruitment levels and spatial-temporal gait variables. Methods. Eight healthy older women (age: 72.63 ± 6.55 years) walked at their preferred walking speed for twenty minutes on a treadmill. The Root Mean Square (RMS) from the vastus-lateralis, femoral biceps, tibialis anterior and lateral gastrocnemius muscles were determined at the first and last minute of the test during the moments of Heel Strike (HS), Terminal Stance and Terminal Swing (TS). In addition, coactivation in the knee and ankle as well as the stride cadence and length were measured in the test. The two RMS data (taken at the first and last minute) were compared by means of a Student's t-test. Results. Twenty minutes of walking induced fatigue in the subjects, as observed through an increase in RMS, notably during the HS and TS. Coactivation was also influenced by the prolonged gait test. The only gait phase where a risk of falling was enhanced was the HS. Nonetheless, subjects developed strategies to maintain a safe motor pattern, which was evidenced by an increase in stride length and a decrease in stride cadence. Conclusion. Tests lasting just twenty minutes on a treadmill were enough to induce fatigue in older adults. However, the level of fatigue was not enough to present a danger or fall risk to elderly individuals.
publishDate 2011
dc.date.none.fl_str_mv 2011-09-01
2014-05-27T11:25:59Z
2014-05-27T11:25:59Z
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/10.2478/v10038-011-0025-7
Human Movement, v. 12, n. 3, p. 242-247, 2011.
1732-3991
http://hdl.handle.net/11449/72642
10.2478/v10038-011-0025-7
2-s2.0-80053303659
2-s2.0-80053303659.pdf
3023304896722902
url http://dx.doi.org/10.2478/v10038-011-0025-7
http://hdl.handle.net/11449/72642
identifier_str_mv Human Movement, v. 12, n. 3, p. 242-247, 2011.
1732-3991
10.2478/v10038-011-0025-7
2-s2.0-80053303659
2-s2.0-80053303659.pdf
3023304896722902
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Human Movement
0,194
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 242-247
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
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