Bone quantity and quality in Brazilian female schoolchildren and adolescents

Bone quantity and quality in Brazilian female schoolchildren and adolescents

Author Santos, Keila Donassolo Google Scholar
Petroski, Edio Luiz Google Scholar
Ribeiro, Roberto Regis Google Scholar
Guerra-Junior, Gil Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Universidade Federal de Santa Catarina (UFSC)
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.
Keywords Bone mass
Ultrasound
Phalanges
Growth and development
Pubertal stages
Language English
Sponsor Regional Education Centre of Cascavel/PR
Date 2009-07-01
Published in Journal of Bone and Mineral Metabolism. Tokyo: Springer Japan Kk, v. 27, n. 4, p. 507-512, 2009.
ISSN 0914-8779 (Sherpa/Romeo, impact factor)
Publisher Springer
Extent 507-512
Origin http://dx.doi.org/10.1007/s00774-009-0067-5
Access rights Closed access
Type Article
Web of Science ID WOS:000267486300015
URI http://repositorio.unifesp.br/handle/11600/31633

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