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Type: Artigo de periódico
Title: Bone quantity and quality in Brazilian female schoolchildren and adolescents
Author: Santos, KD
Petroski, EL
Ribeiro, RR
Guerra, G
Abstract: The aim of the present study was to evaluate quantitative ultrasound parameters of the finger phalanges bones (AD-SoS, amplitude-dependent speed of sound, and BTT, bone transmission time) of schoolchildren, using a DBM Sonic device (IGEA, Carpi, Italy), to obtain normative values for the Brazilian population. The sample consisted of 1,775 healthy schoolchildren, all females, aged 8-17 years. We observed a progressive increase for the variables of weight, height, body mass index (BMI), AD-SoS, and BTT with advancing age. Results for AD-SoS showed increasing and significant variation from 8 to 17 years old (1,938-2,103 m/s, an increase of 8.52%, P < 0.0001), and also for BTT (0.84-1.45 mu s, an increase of 72.6%, P < 0.0001). A gradual increase in the values of AD-SoS and BTT was observed with advances in pubertal stages. There was an interaction between the variables of age, height, and pubertal stages, predicting AD-SoS (R (2) = 0.49) and BTT (R (2) = 0.53). The study showed that AD-SoS and BTT, evaluated by means of bone ultrasonometry of the phalanges in females, increase gradually with age, being more evident during puberty, probably as a reflex of the structural organization of bone growth and development, or changes in the content of the bone tissue.
Subject: Bone mass
Growth and development
Pubertal stages
Country: Japão
Editor: Springer Japan Kk
Citation: Journal Of Bone And Mineral Metabolism. Springer Japan Kk, v. 27, n. 4, n. 507, n. 512, 2009.
Rights: fechado
Identifier DOI: 10.1007/s00774-009-0067-5
Date Issue: 2009
Appears in Collections:Unicamp - Artigos e Outros Documentos

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