Bone mineralization among male adolescents: Critical years for bone mass gain
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.2223/1259 http://hdl.handle.net/11449/67999 |
Resumo: | Objective: To verify the behavior of the mineral bone content and density in male adolescents according to age and secondary sexual characters. Methods: 47 healthy adolescents between 10 and 19 years old were assessed according to weight, height, body mass index, puberty stage, calcium intake, bone mineral density and content in the lumbar spine and in the proximal femur. The bone mass was measured through bone densitometries. The intake of calcium was calculated through a 3-day diet. The BMI (body mass index) was calculated with the Quetelet Index and the puberty stage was defined according to Tanner's criteria. The analysis used descriptive statistics such as average and standard deviation, and variance estimates to compare the different age groups. Moreover, the Tukey test was used to determine the significant differences. Results: It was evident that the calcium intake in the different ages assessed has not reached the minimum value of 800 mg. The bone mineral density and content showed an increase after the age of 14, as well as when the teenagers reached the sexual maturation stage G4. The mineralization parameters showed a high level when the teenagers were in the G3 stage, however, without statistical significance. Conclusion: The results indicate an important level of bone mineralization during adolescence. Maturation levels superior to G3 have shown more mineralization. This study proves that the critical years for bone mass gain start after the 14-15 years old or older. Copyright © 2004 by Sociedade Brasileira de Pediatria. |
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Bone mineralization among male adolescents: Critical years for bone mass gainAdolescenceBone massBone mineral densityPuberty stageSecondary sex characterscalciumadolescentadolescent healthadultbody heightbody massbody weightbone densitometrybone densitybone massbone mineralizationcalcium intakechildcontrolled studyfemurhumanlumbar spinemalenormal humanpubertysexual developmentsexual maturationstatistical analysisage distributionlumbar vertebraphysiologyradiodensitometryradiographyAdolescentAge DistributionBody Mass IndexBone DensityCalcium, DietaryChildDensitometry, X-RayFemurHumansLumbar VertebraeMalePubertySexual MaturationObjective: To verify the behavior of the mineral bone content and density in male adolescents according to age and secondary sexual characters. Methods: 47 healthy adolescents between 10 and 19 years old were assessed according to weight, height, body mass index, puberty stage, calcium intake, bone mineral density and content in the lumbar spine and in the proximal femur. The bone mass was measured through bone densitometries. The intake of calcium was calculated through a 3-day diet. The BMI (body mass index) was calculated with the Quetelet Index and the puberty stage was defined according to Tanner's criteria. The analysis used descriptive statistics such as average and standard deviation, and variance estimates to compare the different age groups. Moreover, the Tukey test was used to determine the significant differences. Results: It was evident that the calcium intake in the different ages assessed has not reached the minimum value of 800 mg. The bone mineral density and content showed an increase after the age of 14, as well as when the teenagers reached the sexual maturation stage G4. The mineralization parameters showed a high level when the teenagers were in the G3 stage, however, without statistical significance. Conclusion: The results indicate an important level of bone mineralization during adolescence. Maturation levels superior to G3 have shown more mineralization. This study proves that the critical years for bone mass gain start after the 14-15 years old or older. Copyright © 2004 by Sociedade Brasileira de Pediatria.Graduate Program in Pediatrics School of Medicine of Botucatu Universidade Estadual Paulista (UNESP), São Paulo, SPDepartment of Pediatrics School of Medicine of Botucatu UNESP, São Paulo, SPDepartment of Tropical Diseases and Imaging Diagnosis School of Medicine of Botucatu UNESP, São Paulo, SPDepartment of Applied Mathematics Universidade Estadual de Londrina (UEL), Londrina, PRDepartamento de Pediatria - Disciplina de Medicina do Adolescente, CEP 18607-918 - Botucatu, SPGraduate Program in Pediatrics School of Medicine of Botucatu Universidade Estadual Paulista (UNESP), São Paulo, SPDepartment of Pediatrics School of Medicine of Botucatu UNESP, São Paulo, SPDepartment of Tropical Diseases and Imaging Diagnosis School of Medicine of Botucatu UNESP, São Paulo, SPUniversidade Estadual Paulista (Unesp)Universidade Estadual de Londrina (UEL)Silva, Carla C. [UNESP]Goldberg, Tamara Beres Lederer [UNESP]Teixeira, Altamir Santos [UNESP]Dalmas, José C.2014-05-27T11:21:13Z2014-05-27T11:21:13Z2004-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article461-467application/pdfhttp://dx.doi.org/10.2223/1259Jornal de Pediatria, v. 80, n. 6, p. 461-467, 2004.0021-7557http://hdl.handle.net/11449/6799910.2223/12592-s2.0-149443756392-s2.0-14944375639.pdf72148348592603970000-0001-7017-766XScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJornal de Pediatria1.6900,704info:eu-repo/semantics/openAccess2024-09-03T13:47:05Zoai:repositorio.unesp.br:11449/67999Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-09-03T13:47:05Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Bone mineralization among male adolescents: Critical years for bone mass gain |
title |
Bone mineralization among male adolescents: Critical years for bone mass gain |
spellingShingle |
Bone mineralization among male adolescents: Critical years for bone mass gain Silva, Carla C. [UNESP] Adolescence Bone mass Bone mineral density Puberty stage Secondary sex characters calcium adolescent adolescent health adult body height body mass body weight bone densitometry bone density bone mass bone mineralization calcium intake child controlled study femur human lumbar spine male normal human puberty sexual development sexual maturation statistical analysis age distribution lumbar vertebra physiology radiodensitometry radiography Adolescent Age Distribution Body Mass Index Bone Density Calcium, Dietary Child Densitometry, X-Ray Femur Humans Lumbar Vertebrae Male Puberty Sexual Maturation |
title_short |
Bone mineralization among male adolescents: Critical years for bone mass gain |
title_full |
Bone mineralization among male adolescents: Critical years for bone mass gain |
title_fullStr |
Bone mineralization among male adolescents: Critical years for bone mass gain |
title_full_unstemmed |
Bone mineralization among male adolescents: Critical years for bone mass gain |
title_sort |
Bone mineralization among male adolescents: Critical years for bone mass gain |
author |
Silva, Carla C. [UNESP] |
author_facet |
Silva, Carla C. [UNESP] Goldberg, Tamara Beres Lederer [UNESP] Teixeira, Altamir Santos [UNESP] Dalmas, José C. |
author_role |
author |
author2 |
Goldberg, Tamara Beres Lederer [UNESP] Teixeira, Altamir Santos [UNESP] Dalmas, José C. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Estadual de Londrina (UEL) |
dc.contributor.author.fl_str_mv |
Silva, Carla C. [UNESP] Goldberg, Tamara Beres Lederer [UNESP] Teixeira, Altamir Santos [UNESP] Dalmas, José C. |
dc.subject.por.fl_str_mv |
Adolescence Bone mass Bone mineral density Puberty stage Secondary sex characters calcium adolescent adolescent health adult body height body mass body weight bone densitometry bone density bone mass bone mineralization calcium intake child controlled study femur human lumbar spine male normal human puberty sexual development sexual maturation statistical analysis age distribution lumbar vertebra physiology radiodensitometry radiography Adolescent Age Distribution Body Mass Index Bone Density Calcium, Dietary Child Densitometry, X-Ray Femur Humans Lumbar Vertebrae Male Puberty Sexual Maturation |
topic |
Adolescence Bone mass Bone mineral density Puberty stage Secondary sex characters calcium adolescent adolescent health adult body height body mass body weight bone densitometry bone density bone mass bone mineralization calcium intake child controlled study femur human lumbar spine male normal human puberty sexual development sexual maturation statistical analysis age distribution lumbar vertebra physiology radiodensitometry radiography Adolescent Age Distribution Body Mass Index Bone Density Calcium, Dietary Child Densitometry, X-Ray Femur Humans Lumbar Vertebrae Male Puberty Sexual Maturation |
description |
Objective: To verify the behavior of the mineral bone content and density in male adolescents according to age and secondary sexual characters. Methods: 47 healthy adolescents between 10 and 19 years old were assessed according to weight, height, body mass index, puberty stage, calcium intake, bone mineral density and content in the lumbar spine and in the proximal femur. The bone mass was measured through bone densitometries. The intake of calcium was calculated through a 3-day diet. The BMI (body mass index) was calculated with the Quetelet Index and the puberty stage was defined according to Tanner's criteria. The analysis used descriptive statistics such as average and standard deviation, and variance estimates to compare the different age groups. Moreover, the Tukey test was used to determine the significant differences. Results: It was evident that the calcium intake in the different ages assessed has not reached the minimum value of 800 mg. The bone mineral density and content showed an increase after the age of 14, as well as when the teenagers reached the sexual maturation stage G4. The mineralization parameters showed a high level when the teenagers were in the G3 stage, however, without statistical significance. Conclusion: The results indicate an important level of bone mineralization during adolescence. Maturation levels superior to G3 have shown more mineralization. This study proves that the critical years for bone mass gain start after the 14-15 years old or older. Copyright © 2004 by Sociedade Brasileira de Pediatria. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-12-01 2014-05-27T11:21:13Z 2014-05-27T11:21:13Z |
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/10.2223/1259 Jornal de Pediatria, v. 80, n. 6, p. 461-467, 2004. 0021-7557 http://hdl.handle.net/11449/67999 10.2223/1259 2-s2.0-14944375639 2-s2.0-14944375639.pdf 7214834859260397 0000-0001-7017-766X |
url |
http://dx.doi.org/10.2223/1259 http://hdl.handle.net/11449/67999 |
identifier_str_mv |
Jornal de Pediatria, v. 80, n. 6, p. 461-467, 2004. 0021-7557 10.2223/1259 2-s2.0-14944375639 2-s2.0-14944375639.pdf 7214834859260397 0000-0001-7017-766X |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Jornal de Pediatria 1.690 0,704 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
461-467 application/pdf |
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 |
repositoriounesp@unesp.br |
_version_ |
1810021425459757056 |