Aerobic training, but not creatine supplementation, alters the gluteus medius muscle
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.2527/2005.833579x http://hdl.handle.net/11449/231007 |
Resumo: | The aim of the present study was to investigate the effect of oral supplementation of creatine on the muscular responses to aerobic training. Twelve purebred Arabian horses were submitted to aerobic training for 90 d, with and without creatine supplementation, and evaluated with respect to BW and BCS and to the area and frequency of the different types of muscle fibers in the gluteus medius. Supplementation consisted of the daily administration of 75 g of creatine monohydrate mixed into the ration for the 90 d of training. Physical conditioning was conducted on a high-performance treadmill, and training intensity was stipulated by calculating the velocity at which blood lactate reaches 4 mmol/L, determined monthly for each animal. The individual intensity of physical force at 80% of aerobic threshold was established. Morphometry of gluteus medius muscle fibers was performed on frozen sections processed for histochemical analysis of myosin adenosine triphosphatase and immunohistochemistry of slow-contracting myosin. The results demonstrated that the animals maintained a moderate BCS without alteration of BW during the course of training, providing evidence of equilibrium between food intake and caloric expenditure during the study period. The present study demonstrated that aerobic training for 90 d caused hypertrophy of fiber types I (P = 0.04), IIA (P = 0.04), and IIX (P = 0.01), as well as an increase in the relative area occupied by type I fibers (P = 0.02) at the expense of type IIX fibers (P = 0.03), resulting in modifications of the contractile and metabolic characteristics of the gluteus medius muscle. It was not possible to show any beneficial effect from creatine on the skeletal muscle characteristics examined. ©2005 American Society of Animal Science. All rights reserved. |
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Aerobic training, but not creatine supplementation, alters the gluteus medius muscleAerobic TrainingCreatineGluteus MediusHorsesMuscle BiopsyMyosin ATPaseThe aim of the present study was to investigate the effect of oral supplementation of creatine on the muscular responses to aerobic training. Twelve purebred Arabian horses were submitted to aerobic training for 90 d, with and without creatine supplementation, and evaluated with respect to BW and BCS and to the area and frequency of the different types of muscle fibers in the gluteus medius. Supplementation consisted of the daily administration of 75 g of creatine monohydrate mixed into the ration for the 90 d of training. Physical conditioning was conducted on a high-performance treadmill, and training intensity was stipulated by calculating the velocity at which blood lactate reaches 4 mmol/L, determined monthly for each animal. The individual intensity of physical force at 80% of aerobic threshold was established. Morphometry of gluteus medius muscle fibers was performed on frozen sections processed for histochemical analysis of myosin adenosine triphosphatase and immunohistochemistry of slow-contracting myosin. The results demonstrated that the animals maintained a moderate BCS without alteration of BW during the course of training, providing evidence of equilibrium between food intake and caloric expenditure during the study period. The present study demonstrated that aerobic training for 90 d caused hypertrophy of fiber types I (P = 0.04), IIA (P = 0.04), and IIX (P = 0.01), as well as an increase in the relative area occupied by type I fibers (P = 0.02) at the expense of type IIX fibers (P = 0.03), resulting in modifications of the contractile and metabolic characteristics of the gluteus medius muscle. It was not possible to show any beneficial effect from creatine on the skeletal muscle characteristics examined. ©2005 American Society of Animal Science. All rights reserved.Department of Animal Morphology and Physiology College of Agricultural and Veterinary Sciences Säo Paulo State University, Jaboticabal, SPDepartment of Animal Surgery and Clinical Sciences College of Agricultural and Veterinary Sciences Säo Paulo State University, Jaboticabal, SPFCAV/UNESP, Via de Acesso Prof. Paulo Donato, Castellane, 14884-900FCAV/UNESP, Via de Acesso Prof. Paulo Donato, Castellane, 14884-900Säo Paulo State UniversityUniversidade Estadual Paulista (UNESP)D'Angelis, F. H.F.Ferraz, G. C.Boleli, I. C.Lacerda-Neto, J. C.Queiroz-Neto, A. [UNESP]2022-04-29T08:43:13Z2022-04-29T08:43:13Z2005-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article579-585http://dx.doi.org/10.2527/2005.833579xJournal of Animal Science, v. 83, n. 3, p. 579-585, 2005.0021-8812http://hdl.handle.net/11449/23100710.2527/2005.833579x2-s2.0-33644652847Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Animal Scienceinfo:eu-repo/semantics/openAccess2022-04-29T08:43:13Zoai:repositorio.unesp.br:11449/231007Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-29T08:43:13Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Aerobic training, but not creatine supplementation, alters the gluteus medius muscle |
title |
Aerobic training, but not creatine supplementation, alters the gluteus medius muscle |
spellingShingle |
Aerobic training, but not creatine supplementation, alters the gluteus medius muscle D'Angelis, F. H.F. Aerobic Training Creatine Gluteus Medius Horses Muscle Biopsy Myosin ATPase |
title_short |
Aerobic training, but not creatine supplementation, alters the gluteus medius muscle |
title_full |
Aerobic training, but not creatine supplementation, alters the gluteus medius muscle |
title_fullStr |
Aerobic training, but not creatine supplementation, alters the gluteus medius muscle |
title_full_unstemmed |
Aerobic training, but not creatine supplementation, alters the gluteus medius muscle |
title_sort |
Aerobic training, but not creatine supplementation, alters the gluteus medius muscle |
author |
D'Angelis, F. H.F. |
author_facet |
D'Angelis, F. H.F. Ferraz, G. C. Boleli, I. C. Lacerda-Neto, J. C. Queiroz-Neto, A. [UNESP] |
author_role |
author |
author2 |
Ferraz, G. C. Boleli, I. C. Lacerda-Neto, J. C. Queiroz-Neto, A. [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Säo Paulo State University Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
D'Angelis, F. H.F. Ferraz, G. C. Boleli, I. C. Lacerda-Neto, J. C. Queiroz-Neto, A. [UNESP] |
dc.subject.por.fl_str_mv |
Aerobic Training Creatine Gluteus Medius Horses Muscle Biopsy Myosin ATPase |
topic |
Aerobic Training Creatine Gluteus Medius Horses Muscle Biopsy Myosin ATPase |
description |
The aim of the present study was to investigate the effect of oral supplementation of creatine on the muscular responses to aerobic training. Twelve purebred Arabian horses were submitted to aerobic training for 90 d, with and without creatine supplementation, and evaluated with respect to BW and BCS and to the area and frequency of the different types of muscle fibers in the gluteus medius. Supplementation consisted of the daily administration of 75 g of creatine monohydrate mixed into the ration for the 90 d of training. Physical conditioning was conducted on a high-performance treadmill, and training intensity was stipulated by calculating the velocity at which blood lactate reaches 4 mmol/L, determined monthly for each animal. The individual intensity of physical force at 80% of aerobic threshold was established. Morphometry of gluteus medius muscle fibers was performed on frozen sections processed for histochemical analysis of myosin adenosine triphosphatase and immunohistochemistry of slow-contracting myosin. The results demonstrated that the animals maintained a moderate BCS without alteration of BW during the course of training, providing evidence of equilibrium between food intake and caloric expenditure during the study period. The present study demonstrated that aerobic training for 90 d caused hypertrophy of fiber types I (P = 0.04), IIA (P = 0.04), and IIX (P = 0.01), as well as an increase in the relative area occupied by type I fibers (P = 0.02) at the expense of type IIX fibers (P = 0.03), resulting in modifications of the contractile and metabolic characteristics of the gluteus medius muscle. It was not possible to show any beneficial effect from creatine on the skeletal muscle characteristics examined. ©2005 American Society of Animal Science. All rights reserved. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005-01-01 2022-04-29T08:43:13Z 2022-04-29T08:43:13Z |
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/10.2527/2005.833579x Journal of Animal Science, v. 83, n. 3, p. 579-585, 2005. 0021-8812 http://hdl.handle.net/11449/231007 10.2527/2005.833579x 2-s2.0-33644652847 |
url |
http://dx.doi.org/10.2527/2005.833579x http://hdl.handle.net/11449/231007 |
identifier_str_mv |
Journal of Animal Science, v. 83, n. 3, p. 579-585, 2005. 0021-8812 10.2527/2005.833579x 2-s2.0-33644652847 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Animal Science |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
579-585 |
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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1799965115726954496 |