ICCBH2013 Poster Presentations (1) (201 abstracts)
Influence of nutritional status in the bone mass assessed by phalangeal quantitative ultrasound of girls aged 7–10 years old
Fabio Bertapelli , Ezequiel M Gonçalves , Vinicius J O Barbeta , Tathyane Krahenbuhl , Luis C B Ramalho , Juan E Samur-San Martin , Roberto R Ribeiro & Gil Guerra-Júnior
University Campinas, Campinas, São Paulo, Brazil.
The childhood obesity is a global epidemic. Some studies with pre-pubertal children reported a positive relationship between fat mass and bone. However, there are no available data on the influence of the nutritional status on parameters of quantitative ultrasound (QUS). The aim of this study was to evaluate the influence of nutritional status in bone mass assessed by QUS of proximal phalanges in girls. The bone mass parameter, amplitude dependent speed sound (AD-SoS) in meters for seconds (m/s) was assessed for QUS of the phalanges using DBM Sonic BP (IGEA, Carpi, Italy) device, in 514 pre-pubertal Brazilian school girls aged 7–10 years old. The nutritional status was classified according to extended International body mass index cut-offs (Cole & Lobstein 2012). Most girls (69.8%) presented values of BMI considered appropriate for age (BMI: 15.8±1.1 m/kg2 and Z-score: −0.02±0.54), 14.6% were classified as thinness (BMI: 13.5±0.5 m/kg2 and Z-score: −1.47±0.40), 11.1% as overweight (BMI: 19.3±1.0 m/kg2 and Z-score: 1.44±0.28) and 4.5% as obese (BMI: 22.9±1.8 m/kg2 and Z-score: 2.48±0.31). The AD-SoS values were significantly lower (F=7.54, P<0.05) among overweight (1915.6±46.6 m/s) and obese girls (1896.0±45.6 m/s) in comparison with normal (1935.9±47.8 m/s) and thinness group (1937.6±52.5 m/s) as shown in Fig. 1.
Figure 1 Comparison of AD-SoS values according to the nutritional status.
Our preliminary results demonstrated that the group overweight and/or obese may influences the bone mass parameter measured by QUS at phalanges in girls from 7 to 10 years old. This highlights the need of preventive actions to prevent the excess weight gain in children.
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