Practice of martial arts and bone mineral density in adolescents of both sexes
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Paulista de Pediatria (Ed. Português. Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-05822016000200210 |
Resumo: | Abstract Objective: The purpose of this study was to analyze the relationship between martial arts practice (judo, karate and kung-fu) and bone mineral density in adolescents. Methods: The study was composed of 138 (48 martial arts practitioners and 90 non-practitioners) adolescents of both sexes, with an average age of 12.6 years. Bone mineral density was measured using Dual-Energy X-ray Absorptiometry in arms, legs, spine, trunk, pelvis and total. Weekly training load and previous time of engagement in the sport modality were reported by the coach. Partial correlation tested the association between weekly training load and bone mineral density, controlled by sex, chronological age, previous practice and somatic maturation. Analysis of covariance was used to compare bone mineral density values according to control and martial arts groups, controlled by sex, chronological age, previous practice and somatic maturation. Significant relationships between bone mineral density and muscle mass were inserted into a multivariate model and the slopes of the models were compared using the Student t test (control versus martial art). Results: Adolescents engaged in judo practice presented higher values of bone mineral density than the control individuals (p-value=0.042; Medium Effect size [Eta-squared=0.063]), while the relationship between quantity of weekly training and bone mineral density was significant among adolescents engaged in judo (arms [r=0.308] and legs [r=0.223]) and kung-fu (arms [r=0.248] and spine [r=0.228]). Conclusions: Different modalities of martial arts are related to higher bone mineral density in different body regions among adolescents. |
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Revista Paulista de Pediatria (Ed. Português. Online) |
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Practice of martial arts and bone mineral density in adolescents of both sexesMartial artsBone mineral densityAdolescentsAbstract Objective: The purpose of this study was to analyze the relationship between martial arts practice (judo, karate and kung-fu) and bone mineral density in adolescents. Methods: The study was composed of 138 (48 martial arts practitioners and 90 non-practitioners) adolescents of both sexes, with an average age of 12.6 years. Bone mineral density was measured using Dual-Energy X-ray Absorptiometry in arms, legs, spine, trunk, pelvis and total. Weekly training load and previous time of engagement in the sport modality were reported by the coach. Partial correlation tested the association between weekly training load and bone mineral density, controlled by sex, chronological age, previous practice and somatic maturation. Analysis of covariance was used to compare bone mineral density values according to control and martial arts groups, controlled by sex, chronological age, previous practice and somatic maturation. Significant relationships between bone mineral density and muscle mass were inserted into a multivariate model and the slopes of the models were compared using the Student t test (control versus martial art). Results: Adolescents engaged in judo practice presented higher values of bone mineral density than the control individuals (p-value=0.042; Medium Effect size [Eta-squared=0.063]), while the relationship between quantity of weekly training and bone mineral density was significant among adolescents engaged in judo (arms [r=0.308] and legs [r=0.223]) and kung-fu (arms [r=0.248] and spine [r=0.228]). Conclusions: Different modalities of martial arts are related to higher bone mineral density in different body regions among adolescents.Sociedade de Pediatria de São Paulo2016-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-05822016000200210Revista Paulista de Pediatria v.34 n.2 2016reponame:Revista Paulista de Pediatria (Ed. Português. Online)instname:Sociedade de Pediatria de São Paulo (SPSP)instacron:SPSP10.1016/j.rppede.2015.09.003info:eu-repo/semantics/openAccessIto,Igor HidekiMantovani,Alessandra MadiaAgostinete,Ricardo RibeiroCosta Junior,PauloZanuto,Edner FernandoChristofaro,Diego Giulliano DestroRibeiro,Luis PedroFernandes,Rômulo Araújoeng2016-06-14T00:00:00Zoai:scielo:S0103-05822016000200210Revistahttps://www.rpped.com.br/ONGhttps://old.scielo.br/oai/scielo-oai.phppediatria@spsp.org.br||rpp@spsp.org.br1984-04620103-0582opendoar:2016-06-14T00:00Revista Paulista de Pediatria (Ed. Português. Online) - Sociedade de Pediatria de São Paulo (SPSP)false |
dc.title.none.fl_str_mv |
Practice of martial arts and bone mineral density in adolescents of both sexes |
title |
Practice of martial arts and bone mineral density in adolescents of both sexes |
spellingShingle |
Practice of martial arts and bone mineral density in adolescents of both sexes Ito,Igor Hideki Martial arts Bone mineral density Adolescents |
title_short |
Practice of martial arts and bone mineral density in adolescents of both sexes |
title_full |
Practice of martial arts and bone mineral density in adolescents of both sexes |
title_fullStr |
Practice of martial arts and bone mineral density in adolescents of both sexes |
title_full_unstemmed |
Practice of martial arts and bone mineral density in adolescents of both sexes |
title_sort |
Practice of martial arts and bone mineral density in adolescents of both sexes |
author |
Ito,Igor Hideki |
author_facet |
Ito,Igor Hideki Mantovani,Alessandra Madia Agostinete,Ricardo Ribeiro Costa Junior,Paulo Zanuto,Edner Fernando Christofaro,Diego Giulliano Destro Ribeiro,Luis Pedro Fernandes,Rômulo Araújo |
author_role |
author |
author2 |
Mantovani,Alessandra Madia Agostinete,Ricardo Ribeiro Costa Junior,Paulo Zanuto,Edner Fernando Christofaro,Diego Giulliano Destro Ribeiro,Luis Pedro Fernandes,Rômulo Araújo |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Ito,Igor Hideki Mantovani,Alessandra Madia Agostinete,Ricardo Ribeiro Costa Junior,Paulo Zanuto,Edner Fernando Christofaro,Diego Giulliano Destro Ribeiro,Luis Pedro Fernandes,Rômulo Araújo |
dc.subject.por.fl_str_mv |
Martial arts Bone mineral density Adolescents |
topic |
Martial arts Bone mineral density Adolescents |
description |
Abstract Objective: The purpose of this study was to analyze the relationship between martial arts practice (judo, karate and kung-fu) and bone mineral density in adolescents. Methods: The study was composed of 138 (48 martial arts practitioners and 90 non-practitioners) adolescents of both sexes, with an average age of 12.6 years. Bone mineral density was measured using Dual-Energy X-ray Absorptiometry in arms, legs, spine, trunk, pelvis and total. Weekly training load and previous time of engagement in the sport modality were reported by the coach. Partial correlation tested the association between weekly training load and bone mineral density, controlled by sex, chronological age, previous practice and somatic maturation. Analysis of covariance was used to compare bone mineral density values according to control and martial arts groups, controlled by sex, chronological age, previous practice and somatic maturation. Significant relationships between bone mineral density and muscle mass were inserted into a multivariate model and the slopes of the models were compared using the Student t test (control versus martial art). Results: Adolescents engaged in judo practice presented higher values of bone mineral density than the control individuals (p-value=0.042; Medium Effect size [Eta-squared=0.063]), while the relationship between quantity of weekly training and bone mineral density was significant among adolescents engaged in judo (arms [r=0.308] and legs [r=0.223]) and kung-fu (arms [r=0.248] and spine [r=0.228]). Conclusions: Different modalities of martial arts are related to higher bone mineral density in different body regions among adolescents. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-06-01 |
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=S0103-05822016000200210 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-05822016000200210 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1016/j.rppede.2015.09.003 |
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 |
Sociedade de Pediatria de São Paulo |
publisher.none.fl_str_mv |
Sociedade de Pediatria de São Paulo |
dc.source.none.fl_str_mv |
Revista Paulista de Pediatria v.34 n.2 2016 reponame:Revista Paulista de Pediatria (Ed. Português. Online) instname:Sociedade de Pediatria de São Paulo (SPSP) instacron:SPSP |
instname_str |
Sociedade de Pediatria de São Paulo (SPSP) |
instacron_str |
SPSP |
institution |
SPSP |
reponame_str |
Revista Paulista de Pediatria (Ed. Português. Online) |
collection |
Revista Paulista de Pediatria (Ed. Português. Online) |
repository.name.fl_str_mv |
Revista Paulista de Pediatria (Ed. Português. Online) - Sociedade de Pediatria de São Paulo (SPSP) |
repository.mail.fl_str_mv |
pediatria@spsp.org.br||rpp@spsp.org.br |
_version_ |
1750318249653829632 |