| Prediction and validation of total and regional fat mass by B-mode ultrasound in Japanese pre-pubertal children. | |
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MedLine Citation:
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PMID: 21736848 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The present study was performed to develop regression-based prediction equations for fat mass by ultrasound in Japanese children and to investigate the validity of these equations. A total of 127 healthy Japanese pre-pubertal children aged 6-12 years were randomly separated into two groups: the model development group (fifty-four boys and forty-four girls) and the validation group (eighteen boys and eleven girls). Total body, trunk, arm and leg fat masses were initially determined by dual-energy X-ray absorptiometry (DXA, Delphi A-QDR whole-body scanner; Hologic, Inc., Bedford, MA, USA). Then, fat thickness was measured by B-mode ultrasound (5 MHz scanning head) at nine sites (arm: lateral forearm, anterior and posterior upper arm; trunk: abdomen and subscapular; leg: anterior and posterior thigh, anterior and posterior lower leg). Regression analyses were used to describe the relationships between the site-matched fat masses (total body, arm, trunk and leg) obtained by DXA and ultrasound in the development group. When these fat mass prediction equations were applied to the validation group, the measured total and regional fat mass was very similar to the predicted fat mass (mean difference calculated as predicted - measured fat mass ± 2 SD; total body 0·1 (SD 0·5) kg, arm 0·1 (SD 0·3) kg, trunk - 0·1 (SD 0·3) kg, leg 0·1 (SD 0·5) kg for boys; total body 0·5 (SD 1·3) kg, arm 0·0 (SD 0·3) kg, trunk 0·1 (SD 0·8) kg, leg 0·3 (SD 0·6) kg for girls), and the Bland-Altman analysis did not indicate a bias. These results suggest that ultrasound-derived prediction equations for boys and girls are useful for estimating total and regional fat mass. |
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Authors:
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Taishi Midorikawa; Megumi Ohta; Yuki Hikihara; Suguru Torii; Michael G Bemben; Shizuo Sakamoto |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Validation Studies Date: 2011-05-09 |
Journal Detail:
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Title: The British journal of nutrition Volume: 106 ISSN: 1475-2662 ISO Abbreviation: Br. J. Nutr. Publication Date: 2011 Sep |
Date Detail:
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Created Date: 2011-09-14 Completed Date: 2011-11-08 Revised Date: 2012-01-05 |
Medline Journal Info:
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Nlm Unique ID: 0372547 Medline TA: Br J Nutr Country: England |
Other Details:
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Languages: eng Pagination: 944-50 Citation Subset: IM |
Affiliation:
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College of Health and Welfare, J.F. Oberlin University, 3758 Tokiwamachi, Machida, Tokyo 194-0294, Japan. taishi@obirin.ac.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Absorptiometry, Photon
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methods Adipose Tissue / ultrasonography* Anthropometry / methods* Arm / pathology Body Composition* Body Mass Index Child Female Humans Japan Leg / pathology Male Models, Statistical Regression Analysis Reproducibility of Results Ultrasonography / methods |
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