Publicação
The effect of short-term endurance and strength training on motor unit conduction velocity
| Resumo: | AIM: The aim of this study was to investigate the effect of strength and endurance training on the conduction velocity of vastus medialis obliquus and lateralis single motor units during voluntary sustained knee extensions. METHODS: Seventeen sedentary healthy men (age, mean ± SD, 26.3 ± 3.9 yr) were randomly assigned to one of 2 groups: strength training (ST, n= 8) or endurance training (ET, n= 9). Conventional endurance and strength training was performed three days per week, over a period of 6 weeks. Motor unit conduction velocity (MUCV), maximum voluntary force (MVC) and time-to-task failure at 30% MVC of the knee extensors were measured before and immediately following training. To assess MUCV, multi-channel surface and intramuscular EMG signals were concurrently recorded from the vastus medialis obliquus (VMO) and vastus lateralis (VL) muscles during 60-s isometric knee extensions at 10% and 30% of MVC. RESULTS: After 6 weeks of training, MVC increased in the ST group (16.7 ± 7.4 %; P < 0.05) whereas time to task failure was prolonged in the ET group (33.3 ± 14.2 %; P < 0.05). Both training programs induced an increase in motor unit conduction velocity at both 10% and 30% MVC (P < 0.01). Furthermore after both training programs, the reduction in MUCV over time during the sustained contractions occurred at slower rates compared to baseline (P < 0.01). CONCLUSION: These results indicate that short-term endurance and strength training induce similar alterations of the electrophysiological membrane properties of the muscle fiber and in their changes during sustained contractions |
|---|---|
| Autores principais: | Vila-Chã, Carolina |
| Outros Autores: | Falla, Deborah; Velhote, Miguel C.; Farina, Dario |
| Assunto: | Conduction velocity Endurance training Strength training |
| Ano: | 2010 |
| País: | Portugal |
| Tipo de documento: | documento de conferência |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Instituto Politécnico de Bragança |
| Idioma: | inglês |
| Origem: | Biblioteca Digital do IPB |
| _version_ | 1867173343195561984 |
|---|---|
| author | Vila-Chã, Carolina |
| author2 | Falla, Deborah Velhote, Miguel C. Farina, Dario |
| author2_role | author author author |
| author_facet | Vila-Chã, Carolina Falla, Deborah Velhote, Miguel C. Farina, Dario |
| author_role | author |
| contributor_name_str_mv | Biblioteca Digital do IPB |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Vila-Chã, Carolina\",\"Person.identifier.orcid\":\"0000-0003-3891-357X\"},{\"Person.name\":\"Falla, Deborah\"},{\"Person.name\":\"Velhote, Miguel C.\"},{\"Person.name\":\"Farina, Dario\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Biblioteca Digital do IPB |
| datacite.creators.creator.creatorName.fl_str_mv | Vila-Chã, Carolina Falla, Deborah Velhote, Miguel C. Farina, Dario |
| datacite.date.Accepted.fl_str_mv | 2010-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2011-06-03T10:52:52Z |
| datacite.date.embargoed.fl_str_mv | 2011-06-03T10:52:52Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Conduction velocity Endurance training Strength training |
| datacite.titles.title.fl_str_mv | The effect of short-term endurance and strength training on motor unit conduction velocity |
| dc.contributor.none.fl_str_mv | Biblioteca Digital do IPB |
| dc.creator.none.fl_str_mv | Vila-Chã, Carolina Falla, Deborah Velhote, Miguel C. Farina, Dario |
| dc.date.Accepted.fl_str_mv | 2010-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2011-06-03T10:52:52Z |
| dc.date.embargoed.fl_str_mv | 2011-06-03T10:52:52Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10198/4978 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Aalborg University, Department of Health Science and Technology |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Conduction velocity Endurance training Strength training |
| dc.title.fl_str_mv | The effect of short-term endurance and strength training on motor unit conduction velocity |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_c94f |
| description | AIM: The aim of this study was to investigate the effect of strength and endurance training on the conduction velocity of vastus medialis obliquus and lateralis single motor units during voluntary sustained knee extensions. METHODS: Seventeen sedentary healthy men (age, mean ± SD, 26.3 ± 3.9 yr) were randomly assigned to one of 2 groups: strength training (ST, n= 8) or endurance training (ET, n= 9). Conventional endurance and strength training was performed three days per week, over a period of 6 weeks. Motor unit conduction velocity (MUCV), maximum voluntary force (MVC) and time-to-task failure at 30% MVC of the knee extensors were measured before and immediately following training. To assess MUCV, multi-channel surface and intramuscular EMG signals were concurrently recorded from the vastus medialis obliquus (VMO) and vastus lateralis (VL) muscles during 60-s isometric knee extensions at 10% and 30% of MVC. RESULTS: After 6 weeks of training, MVC increased in the ST group (16.7 ± 7.4 %; P < 0.05) whereas time to task failure was prolonged in the ET group (33.3 ± 14.2 %; P < 0.05). Both training programs induced an increase in motor unit conduction velocity at both 10% and 30% MVC (P < 0.01). Furthermore after both training programs, the reduction in MUCV over time during the sustained contractions occurred at slower rates compared to baseline (P < 0.01). CONCLUSION: These results indicate that short-term endurance and strength training induce similar alterations of the electrophysiological membrane properties of the muscle fiber and in their changes during sustained contractions |
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| eu_rights_str_mv | openAccess |
| format | conferenceObject |
| fulltext.url.fl_str_mv | https://bibliotecadigital.ipb.pt/bitstreams/f43d41de-96c8-4fc3-96b5-68adda4ca1e1/download |
| id | ipb_d94fbfbc2df27e534f90692e0620ba0e |
| identifier.url.fl_str_mv | http://hdl.handle.net/10198/4978 |
| instacron_str | ipb |
| institution | Instituto Politécnico de Bragança |
| instname_str | Instituto Politécnico de Bragança |
| language | eng |
| network_acronym_str | ipb |
| network_name_str | Biblioteca Digital do IPB |
| oai_identifier_str | oai:bibliotecadigital.ipb.pt:10198/4978 |
| organization_str_mv | urn:organizationAcronym:ipb |
| person_str_mv | Vila-Chã, Carolina Vila-Chã, Carolina http://orcid.org/0000-0003-3891-357X 0000-0003-3891-357X Falla, Deborah Velhote, Miguel C. Farina, Dario |
| publishDate | 2010 |
| publisher.none.fl_str_mv | Aalborg University, Department of Health Science and Technology |
| reponame_str | Biblioteca Digital do IPB |
| repository_id_str | urn:repositoryAcronym:ipb |
| service_str_mv | urn:repositoryAcronym:ipb |
| spelling | engAalborg University, Department of Health Science and TechnologyporAIM: The aim of this study was to investigate the effect of strength and endurance training on the conduction velocity of vastus medialis obliquus and lateralis single motor units during voluntary sustained knee extensions. METHODS: Seventeen sedentary healthy men (age, mean ± SD, 26.3 ± 3.9 yr) were randomly assigned to one of 2 groups: strength training (ST, n= 8) or endurance training (ET, n= 9). Conventional endurance and strength training was performed three days per week, over a period of 6 weeks. Motor unit conduction velocity (MUCV), maximum voluntary force (MVC) and time-to-task failure at 30% MVC of the knee extensors were measured before and immediately following training. To assess MUCV, multi-channel surface and intramuscular EMG signals were concurrently recorded from the vastus medialis obliquus (VMO) and vastus lateralis (VL) muscles during 60-s isometric knee extensions at 10% and 30% of MVC. RESULTS: After 6 weeks of training, MVC increased in the ST group (16.7 ± 7.4 %; P < 0.05) whereas time to task failure was prolonged in the ET group (33.3 ± 14.2 %; P < 0.05). Both training programs induced an increase in motor unit conduction velocity at both 10% and 30% MVC (P < 0.01). Furthermore after both training programs, the reduction in MUCV over time during the sustained contractions occurred at slower rates compared to baseline (P < 0.01). CONCLUSION: These results indicate that short-term endurance and strength training induce similar alterations of the electrophysiological membrane properties of the muscle fiber and in their changes during sustained contractionsapplication/pdfporThe effect of short-term endurance and strength training on motor unit conduction velocityPersonalVila-Chã, CarolinaDSpacehttp://dspace.org/items/2fd32019-b368-4f10-a577-a5b651c044c2DSpacehttp://dspace.org/items/2fd32019-b368-4f10-a577-a5b651c044c2Vila-ChãCarolinaORCIDhttp://orcid.org0000-0003-3891-357XScopus Author IDhttps://www.scopus.com35079532100Falla, DeborahVelhote, Miguel C.Farina, DarioHostingInstitutionOrganizationalBiblioteca Digital do IPBe-mailmailto:dspace@ipb.ptdspace@ipb.ptISBNIsPartOf978-87-7094-047-42011-06-03T10:52:52Z20102010-01-01T00:00:00ZHandlehttp://hdl.handle.net/10198/4978http://purl.org/coar/access_right/c_abf2open accessConduction velocityEndurance trainingStrength training149838 bytesother research producthttp://purl.org/coar/resource_type/c_c94fconference objecthttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://bibliotecadigital.ipb.pt/bitstreams/f43d41de-96c8-4fc3-96b5-68adda4ca1e1/downloadCongress of the International Society of Electrophysiology and KinesiologyAalborg |
| spellingShingle | The effect of short-term endurance and strength training on motor unit conduction velocity Vila-Chã, Carolina Conduction velocity Endurance training Strength training |
| status | SINGLETON |
| subject.fl_str_mv | Conduction velocity Endurance training Strength training |
| title | The effect of short-term endurance and strength training on motor unit conduction velocity |
| title_full | The effect of short-term endurance and strength training on motor unit conduction velocity |
| title_fullStr | The effect of short-term endurance and strength training on motor unit conduction velocity |
| title_full_unstemmed | The effect of short-term endurance and strength training on motor unit conduction velocity |
| title_short | The effect of short-term endurance and strength training on motor unit conduction velocity |
| title_sort | The effect of short-term endurance and strength training on motor unit conduction velocity |
| topic | Conduction velocity Endurance training Strength training |
| topic_facet | Conduction velocity Endurance training Strength training |
| url | http://hdl.handle.net/10198/4978 |
| visible | 1 |