Soft tissues, areal bone mineral density and hip geometry estimates in active young boys: the PRO-BONE study
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Citações na Scopus
11
Tipo de produção
article
Data de publicação
2017
Título da Revista
ISSN da Revista
Título do Volume
Editora
SPRINGER
Autores
WILKINSON, Kelly
VLACHOPOULOS, Dimitris
KLENTROU, Panagiota
UBAGO-GUISADO, Esther
BARKER, Alan R.
WILLIAMS, Craig A.
MORENO, Luis A.
GRACIA-MARCO, Luis
Citação
EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY, v.117, n.4, p.833-842, 2017
Resumo
Purpose Soft tissues, such as fat mass (FM) and lean mass (LM), play an important role in bone development but this is poorly understood in highly active youths. The objective of this study was to determine whether FM or LM is a stronger predictor of areal bone mineral density (aBMD) and hip geometry estimates in a group of physically active boys after adjusting for height, chronological age, moderate-to-vigorous physical activity (MVPA), FM, and LM. Methods Participants included 121 boys (13.1 +/- 1.0 years) from the PRO-BONE study. Bone mineral content (BMC) and aBMD were measured at total body, femoral neck and lumbar spine using dual-energy X-ray absorptiometry (DXA), and hip structural analysis was used to estimate bone geometry at the femoral neck. Body composition was assessed using DXA. The relationships of FM and LM with bone outcomes were analysed using simple and multiple linear regression analyses. Results Pearson correlation coefficients showed that total body (less head) aBMD was significantly correlated with LM but not FM. Multiple linear regression analyses showed that FM, after accounting for height, age, MVPA and LM had no significant relationship with aBMD or hip geometry estimates, except for arms aBMD. By contrast, there were positive associations between LM and most aBMD and hip geometry estimates, after accounting height, age, MVPA and FM. Conclusions The results of this study suggest that LM, and not FM, is the stronger predictor of aBMD and hip geometry estimates in physically active boys.
Palavras-chave
Adolescents, Bone health, Hip structural analysis, Body composition, Fat mass, Lean mass
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