The sciatic and radial nerves seem to adapt similarly to different ladder-based resistance training protocols
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s00221-021-06295-2 http://hdl.handle.net/11449/234050 |
Resumo: | The present study aimed to compare the morphological response induced by different ladder-based resistance training (LRT) protocols on the peripheral nerve ultrastructure of young adult Wistar rats. Twenty-nine rodents were distributed into groups: control (CON), submaximal (SUBMAX [6 climbs/session, moderate intensity, 3x/week]) and maximum (MAX [> 4 climbs/session, maximum intensity, 3x/week]) LRT. After 8 weeks, the radial and sciatic nerves were removed and prepared for transmission electron microscopy. In the radial nerve, the myelinated fibers and axons, myelin sheath thickness, and unmyelinated axons were statistically greater in the SUBMAX and MAX. The MAX group had greater unmyelinated fibers than SUBMAX. The Schwann cell (SC) nuclei diameter was statistically larger in the SUBMAX than the CON. The number of microtubules and neurofilaments was statistically higher in the SUBMAX and MAX. In the sciatic nerve, the myelinated fibers, myelinated and unmyelinated axons, and myelin sheath thickness were statistically greater in the SUBMAX and MAX. The SUBMAX and MAX had more SC at the nuclei level than CON. The SC nuclei were statistically larger in the SUBMAX and MAX. The number of microtubules and neurofilaments was statistically higher in the SUBMAX and MAX. Total training load and total load per climb were not different between groups. The SUBMAX and MAX statistically increased maximum carried load (ML). In conclusion, the different LRT protocols induced similar morphological responses in radial and sciatic nerves, probably due to load progression and equal total load volume. |
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The sciatic and radial nerves seem to adapt similarly to different ladder-based resistance training protocolsAxonExerciseMyelinPeripheral nervesStrength trainingThe present study aimed to compare the morphological response induced by different ladder-based resistance training (LRT) protocols on the peripheral nerve ultrastructure of young adult Wistar rats. Twenty-nine rodents were distributed into groups: control (CON), submaximal (SUBMAX [6 climbs/session, moderate intensity, 3x/week]) and maximum (MAX [> 4 climbs/session, maximum intensity, 3x/week]) LRT. After 8 weeks, the radial and sciatic nerves were removed and prepared for transmission electron microscopy. In the radial nerve, the myelinated fibers and axons, myelin sheath thickness, and unmyelinated axons were statistically greater in the SUBMAX and MAX. The MAX group had greater unmyelinated fibers than SUBMAX. The Schwann cell (SC) nuclei diameter was statistically larger in the SUBMAX than the CON. The number of microtubules and neurofilaments was statistically higher in the SUBMAX and MAX. In the sciatic nerve, the myelinated fibers, myelinated and unmyelinated axons, and myelin sheath thickness were statistically greater in the SUBMAX and MAX. The SUBMAX and MAX had more SC at the nuclei level than CON. The SC nuclei were statistically larger in the SUBMAX and MAX. The number of microtubules and neurofilaments was statistically higher in the SUBMAX and MAX. Total training load and total load per climb were not different between groups. The SUBMAX and MAX statistically increased maximum carried load (ML). In conclusion, the different LRT protocols induced similar morphological responses in radial and sciatic nerves, probably due to load progression and equal total load volume.Laboratory of Morphoquantitative Studies and Immunohistochemistry Department of Physical Education São Judas Tadeu University, Rua Taquari, 546, Mooca Unit, SP, P.O. Box 03166-000Department of Morphology and Genetics Paulista Medicine School Federal University of São Paulo, SPLaboratory of Morphology and Physical Activity Department of Physical Education São Paulo State University “Júlio de Mesquita Filho”, SPLaboratory of Human Movement Department of Physical Education São Judas Tadeu University, SPLaboratory of Morphology and Physical Activity Department of Physical Education São Paulo State University “Júlio de Mesquita Filho”, SPSão Judas Tadeu UniversityUniversidade de São Paulo (USP)Universidade Estadual Paulista (UNESP)Krause Neto, WalterGama, Eliane FlorencioSilva, Wellington de Assisde Oliveira, Tony Vinicius ApolinárioVilas Boas, Alan Esaú dos SantosCiena, Adriano Polican [UNESP]Anaruma, Carlos Alberto [UNESP]Caperuto, Érico Chagas2022-05-01T12:56:29Z2022-05-01T12:56:29Z2022-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1007/s00221-021-06295-2Experimental Brain Research.1432-11060014-4819http://hdl.handle.net/11449/23405010.1007/s00221-021-06295-22-s2.0-85123474621Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengExperimental Brain Researchinfo:eu-repo/semantics/openAccess2022-05-01T12:56:29Zoai:repositorio.unesp.br:11449/234050Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-05-01T12:56:29Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
The sciatic and radial nerves seem to adapt similarly to different ladder-based resistance training protocols |
title |
The sciatic and radial nerves seem to adapt similarly to different ladder-based resistance training protocols |
spellingShingle |
The sciatic and radial nerves seem to adapt similarly to different ladder-based resistance training protocols Krause Neto, Walter Axon Exercise Myelin Peripheral nerves Strength training |
title_short |
The sciatic and radial nerves seem to adapt similarly to different ladder-based resistance training protocols |
title_full |
The sciatic and radial nerves seem to adapt similarly to different ladder-based resistance training protocols |
title_fullStr |
The sciatic and radial nerves seem to adapt similarly to different ladder-based resistance training protocols |
title_full_unstemmed |
The sciatic and radial nerves seem to adapt similarly to different ladder-based resistance training protocols |
title_sort |
The sciatic and radial nerves seem to adapt similarly to different ladder-based resistance training protocols |
author |
Krause Neto, Walter |
author_facet |
Krause Neto, Walter Gama, Eliane Florencio Silva, Wellington de Assis de Oliveira, Tony Vinicius Apolinário Vilas Boas, Alan Esaú dos Santos Ciena, Adriano Polican [UNESP] Anaruma, Carlos Alberto [UNESP] Caperuto, Érico Chagas |
author_role |
author |
author2 |
Gama, Eliane Florencio Silva, Wellington de Assis de Oliveira, Tony Vinicius Apolinário Vilas Boas, Alan Esaú dos Santos Ciena, Adriano Polican [UNESP] Anaruma, Carlos Alberto [UNESP] Caperuto, Érico Chagas |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
São Judas Tadeu University Universidade de São Paulo (USP) Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Krause Neto, Walter Gama, Eliane Florencio Silva, Wellington de Assis de Oliveira, Tony Vinicius Apolinário Vilas Boas, Alan Esaú dos Santos Ciena, Adriano Polican [UNESP] Anaruma, Carlos Alberto [UNESP] Caperuto, Érico Chagas |
dc.subject.por.fl_str_mv |
Axon Exercise Myelin Peripheral nerves Strength training |
topic |
Axon Exercise Myelin Peripheral nerves Strength training |
description |
The present study aimed to compare the morphological response induced by different ladder-based resistance training (LRT) protocols on the peripheral nerve ultrastructure of young adult Wistar rats. Twenty-nine rodents were distributed into groups: control (CON), submaximal (SUBMAX [6 climbs/session, moderate intensity, 3x/week]) and maximum (MAX [> 4 climbs/session, maximum intensity, 3x/week]) LRT. After 8 weeks, the radial and sciatic nerves were removed and prepared for transmission electron microscopy. In the radial nerve, the myelinated fibers and axons, myelin sheath thickness, and unmyelinated axons were statistically greater in the SUBMAX and MAX. The MAX group had greater unmyelinated fibers than SUBMAX. The Schwann cell (SC) nuclei diameter was statistically larger in the SUBMAX than the CON. The number of microtubules and neurofilaments was statistically higher in the SUBMAX and MAX. In the sciatic nerve, the myelinated fibers, myelinated and unmyelinated axons, and myelin sheath thickness were statistically greater in the SUBMAX and MAX. The SUBMAX and MAX had more SC at the nuclei level than CON. The SC nuclei were statistically larger in the SUBMAX and MAX. The number of microtubules and neurofilaments was statistically higher in the SUBMAX and MAX. Total training load and total load per climb were not different between groups. The SUBMAX and MAX statistically increased maximum carried load (ML). In conclusion, the different LRT protocols induced similar morphological responses in radial and sciatic nerves, probably due to load progression and equal total load volume. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-05-01T12:56:29Z 2022-05-01T12:56:29Z 2022-01-01 |
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/10.1007/s00221-021-06295-2 Experimental Brain Research. 1432-1106 0014-4819 http://hdl.handle.net/11449/234050 10.1007/s00221-021-06295-2 2-s2.0-85123474621 |
url |
http://dx.doi.org/10.1007/s00221-021-06295-2 http://hdl.handle.net/11449/234050 |
identifier_str_mv |
Experimental Brain Research. 1432-1106 0014-4819 10.1007/s00221-021-06295-2 2-s2.0-85123474621 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Experimental Brain Research |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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_ |
1803047489673101312 |