Involvement of beta absolute power in motor areas after hand immobilization: An EEG study
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | MedicalExpress (São Paulo. Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2358-04292016000500003 |
Resumo: | OBJECTIVE: The purpose of this study was to analyze changes in beta band absolute power in cortical areas, before and after a condition of hand immobilization for 48 hours. METHOD: Fifteen healthy volunteers, aged between 20 and 30, were submitted to EEG assessment before and after immobilization, while performing a motor task triggered by a visual stimulus. RESULTS: Statistical analysis revealed that hand immobilization caused changes in cortical areas. Significant increases in beta band absolute power were found after hand immobilization at electrodes Fp2, C3 and P4. In contrast, at electrode C4 a decrease in beta band absolute power occurred after hand immobilization. CONCLUSION: Predominant hand immobilization, even for 48 hours, is sufficient to cause cortical changes that affect movement planning. Such changes may represent a cortical strategy to supply cortical changes in contralateral hemisphere due to immobilization. Further studies are necessary to understand cortical changes due to hand immobilization and movement planning, especially considering how much time of immobilization is necessary to promote such changes. |
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Involvement of beta absolute power in motor areas after hand immobilization: An EEG studyBeta bandHand immobilizationNeural plasticityElectroencephalography OBJECTIVE: The purpose of this study was to analyze changes in beta band absolute power in cortical areas, before and after a condition of hand immobilization for 48 hours. METHOD: Fifteen healthy volunteers, aged between 20 and 30, were submitted to EEG assessment before and after immobilization, while performing a motor task triggered by a visual stimulus. RESULTS: Statistical analysis revealed that hand immobilization caused changes in cortical areas. Significant increases in beta band absolute power were found after hand immobilization at electrodes Fp2, C3 and P4. In contrast, at electrode C4 a decrease in beta band absolute power occurred after hand immobilization. CONCLUSION: Predominant hand immobilization, even for 48 hours, is sufficient to cause cortical changes that affect movement planning. Such changes may represent a cortical strategy to supply cortical changes in contralateral hemisphere due to immobilization. Further studies are necessary to understand cortical changes due to hand immobilization and movement planning, especially considering how much time of immobilization is necessary to promote such changes.Mavera Edições Técnicas e Científicas Ltda2016-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2358-04292016000500003MedicalExpress v.3 n.5 2016reponame:MedicalExpress (São Paulo. Online)instname:Mavera Edições Científicas e Técnicas Ltda-MEinstacron:METC10.5935/MedicalExpress.2016.05.03info:eu-repo/semantics/openAccessMachado,DionisFrança,Jadna Helena dos SantosTeixeira,SilmarBastos,Victor Hugo do ValeCagy,MaurícioSá Filho,Alberto Souza deMachado,SérgioVelasques,BrunaRibeiro,Pedroeng2016-11-04T00:00:00Zoai:scielo:S2358-04292016000500003Revistahttp://www.medicalexpress.net.brhttps://old.scielo.br/oai/scielo-oai.php||medicalexpress@me.net.br2358-04292318-8111opendoar:2016-11-04T00:00MedicalExpress (São Paulo. Online) - Mavera Edições Científicas e Técnicas Ltda-MEfalse |
dc.title.none.fl_str_mv |
Involvement of beta absolute power in motor areas after hand immobilization: An EEG study |
title |
Involvement of beta absolute power in motor areas after hand immobilization: An EEG study |
spellingShingle |
Involvement of beta absolute power in motor areas after hand immobilization: An EEG study Machado,Dionis Beta band Hand immobilization Neural plasticity Electroencephalography |
title_short |
Involvement of beta absolute power in motor areas after hand immobilization: An EEG study |
title_full |
Involvement of beta absolute power in motor areas after hand immobilization: An EEG study |
title_fullStr |
Involvement of beta absolute power in motor areas after hand immobilization: An EEG study |
title_full_unstemmed |
Involvement of beta absolute power in motor areas after hand immobilization: An EEG study |
title_sort |
Involvement of beta absolute power in motor areas after hand immobilization: An EEG study |
author |
Machado,Dionis |
author_facet |
Machado,Dionis França,Jadna Helena dos Santos Teixeira,Silmar Bastos,Victor Hugo do Vale Cagy,Maurício Sá Filho,Alberto Souza de Machado,Sérgio Velasques,Bruna Ribeiro,Pedro |
author_role |
author |
author2 |
França,Jadna Helena dos Santos Teixeira,Silmar Bastos,Victor Hugo do Vale Cagy,Maurício Sá Filho,Alberto Souza de Machado,Sérgio Velasques,Bruna Ribeiro,Pedro |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Machado,Dionis França,Jadna Helena dos Santos Teixeira,Silmar Bastos,Victor Hugo do Vale Cagy,Maurício Sá Filho,Alberto Souza de Machado,Sérgio Velasques,Bruna Ribeiro,Pedro |
dc.subject.por.fl_str_mv |
Beta band Hand immobilization Neural plasticity Electroencephalography |
topic |
Beta band Hand immobilization Neural plasticity Electroencephalography |
description |
OBJECTIVE: The purpose of this study was to analyze changes in beta band absolute power in cortical areas, before and after a condition of hand immobilization for 48 hours. METHOD: Fifteen healthy volunteers, aged between 20 and 30, were submitted to EEG assessment before and after immobilization, while performing a motor task triggered by a visual stimulus. RESULTS: Statistical analysis revealed that hand immobilization caused changes in cortical areas. Significant increases in beta band absolute power were found after hand immobilization at electrodes Fp2, C3 and P4. In contrast, at electrode C4 a decrease in beta band absolute power occurred after hand immobilization. CONCLUSION: Predominant hand immobilization, even for 48 hours, is sufficient to cause cortical changes that affect movement planning. Such changes may represent a cortical strategy to supply cortical changes in contralateral hemisphere due to immobilization. Further studies are necessary to understand cortical changes due to hand immobilization and movement planning, especially considering how much time of immobilization is necessary to promote such changes. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-10-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2358-04292016000500003 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2358-04292016000500003 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.5935/MedicalExpress.2016.05.03 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Mavera Edições Técnicas e Científicas Ltda |
publisher.none.fl_str_mv |
Mavera Edições Técnicas e Científicas Ltda |
dc.source.none.fl_str_mv |
MedicalExpress v.3 n.5 2016 reponame:MedicalExpress (São Paulo. Online) instname:Mavera Edições Científicas e Técnicas Ltda-ME instacron:METC |
instname_str |
Mavera Edições Científicas e Técnicas Ltda-ME |
instacron_str |
METC |
institution |
METC |
reponame_str |
MedicalExpress (São Paulo. Online) |
collection |
MedicalExpress (São Paulo. Online) |
repository.name.fl_str_mv |
MedicalExpress (São Paulo. Online) - Mavera Edições Científicas e Técnicas Ltda-ME |
repository.mail.fl_str_mv |
||medicalexpress@me.net.br |
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1754734597090836480 |