Antagonist co-activation during sit-to-stand in post stroke subjects
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Tipo de documento: | Dissertação |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.22/19734 |
Resumo: | Antagonist co-activation is frequently altered in post-stroke subjects. To explore the changes in antagonist co-activation ratio in TA/GM, TA/SOL and RF/BF muscle pairs during the sub-phases of sit-to-stand functional task, in both contralesional and ipsilesional limbs, in post-stroke subjects. Eighteen subjects were instructed to sit-to-stand task. Surface eletromayography was recorded in tibialis anterior (TA), Soleus (SOL), gastrocnemius medialis (GM), rectus femoris (RF) and bíceps femoris (BF) muscles, bilaterally. Sit-to-stand movement was divided in three sub-phases (forrward translation, seat-off and antigravity with stabilization), during which anatagonist co-activation ratios were calculated for the muscle pairs TA/GM, TA/SOL and RF/BF. No significant diferences of the antagonista co-activation ratio were detected between both lower limbs. Statistical diferences were observed in the muscle pair TA/GM between forward translation and seat-off and between seat-off and antigravity with stabiliazation in contralesional limb (p<0,05) and in the RF/BF muscle pair between forward translation and seat-off bilaterally (p<0,05). Statistical diferences were observed between muscla pairs during sub-phases (p<0,05). Our findings demonstrate that, in post-stroke subjects, both lower limbs have na identical behaviour during sit-to-stand movement and seems to exist a variation of antagonista co-activation ratio between sub-phases and between muscle pairs. |
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Antagonist co-activation during sit-to-stand in post stroke subjectsCo-activationStrokeSit-to-standMotor controlPostural controlAntagonist co-activation is frequently altered in post-stroke subjects. To explore the changes in antagonist co-activation ratio in TA/GM, TA/SOL and RF/BF muscle pairs during the sub-phases of sit-to-stand functional task, in both contralesional and ipsilesional limbs, in post-stroke subjects. Eighteen subjects were instructed to sit-to-stand task. Surface eletromayography was recorded in tibialis anterior (TA), Soleus (SOL), gastrocnemius medialis (GM), rectus femoris (RF) and bíceps femoris (BF) muscles, bilaterally. Sit-to-stand movement was divided in three sub-phases (forrward translation, seat-off and antigravity with stabilization), during which anatagonist co-activation ratios were calculated for the muscle pairs TA/GM, TA/SOL and RF/BF. No significant diferences of the antagonista co-activation ratio were detected between both lower limbs. Statistical diferences were observed in the muscle pair TA/GM between forward translation and seat-off and between seat-off and antigravity with stabiliazation in contralesional limb (p<0,05) and in the RF/BF muscle pair between forward translation and seat-off bilaterally (p<0,05). Statistical diferences were observed between muscla pairs during sub-phases (p<0,05). Our findings demonstrate that, in post-stroke subjects, both lower limbs have na identical behaviour during sit-to-stand movement and seems to exist a variation of antagonista co-activation ratio between sub-phases and between muscle pairs.Silva, Maria Augusta Ferreira daRepositório Científico do Instituto Politécnico do PortoCavaco, Jesica Andreina Ferreira2021-12-072024-12-07T00:00:00Z2021-12-07T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10400.22/19734TID:202899934engmetadata only accessinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-13T13:14:37Zoai:recipp.ipp.pt:10400.22/19734Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:39:48.615986Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Antagonist co-activation during sit-to-stand in post stroke subjects |
title |
Antagonist co-activation during sit-to-stand in post stroke subjects |
spellingShingle |
Antagonist co-activation during sit-to-stand in post stroke subjects Cavaco, Jesica Andreina Ferreira Co-activation Stroke Sit-to-stand Motor control Postural control |
title_short |
Antagonist co-activation during sit-to-stand in post stroke subjects |
title_full |
Antagonist co-activation during sit-to-stand in post stroke subjects |
title_fullStr |
Antagonist co-activation during sit-to-stand in post stroke subjects |
title_full_unstemmed |
Antagonist co-activation during sit-to-stand in post stroke subjects |
title_sort |
Antagonist co-activation during sit-to-stand in post stroke subjects |
author |
Cavaco, Jesica Andreina Ferreira |
author_facet |
Cavaco, Jesica Andreina Ferreira |
author_role |
author |
dc.contributor.none.fl_str_mv |
Silva, Maria Augusta Ferreira da Repositório Científico do Instituto Politécnico do Porto |
dc.contributor.author.fl_str_mv |
Cavaco, Jesica Andreina Ferreira |
dc.subject.por.fl_str_mv |
Co-activation Stroke Sit-to-stand Motor control Postural control |
topic |
Co-activation Stroke Sit-to-stand Motor control Postural control |
description |
Antagonist co-activation is frequently altered in post-stroke subjects. To explore the changes in antagonist co-activation ratio in TA/GM, TA/SOL and RF/BF muscle pairs during the sub-phases of sit-to-stand functional task, in both contralesional and ipsilesional limbs, in post-stroke subjects. Eighteen subjects were instructed to sit-to-stand task. Surface eletromayography was recorded in tibialis anterior (TA), Soleus (SOL), gastrocnemius medialis (GM), rectus femoris (RF) and bíceps femoris (BF) muscles, bilaterally. Sit-to-stand movement was divided in three sub-phases (forrward translation, seat-off and antigravity with stabilization), during which anatagonist co-activation ratios were calculated for the muscle pairs TA/GM, TA/SOL and RF/BF. No significant diferences of the antagonista co-activation ratio were detected between both lower limbs. Statistical diferences were observed in the muscle pair TA/GM between forward translation and seat-off and between seat-off and antigravity with stabiliazation in contralesional limb (p<0,05) and in the RF/BF muscle pair between forward translation and seat-off bilaterally (p<0,05). Statistical diferences were observed between muscla pairs during sub-phases (p<0,05). Our findings demonstrate that, in post-stroke subjects, both lower limbs have na identical behaviour during sit-to-stand movement and seems to exist a variation of antagonista co-activation ratio between sub-phases and between muscle pairs. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-12-07 2021-12-07T00:00:00Z 2024-12-07T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.22/19734 TID:202899934 |
url |
http://hdl.handle.net/10400.22/19734 |
identifier_str_mv |
TID:202899934 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
metadata only access info:eu-repo/semantics/openAccess |
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metadata only access |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799131485710581760 |