首页> 外文期刊>Journal of the Academy of Nutrition and Dietetics >Group and individual agreement between field and dual x-ray absorptiometry-based body composition techniques in children from standard schools and a sports academy.
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Group and individual agreement between field and dual x-ray absorptiometry-based body composition techniques in children from standard schools and a sports academy.

机译:在标准学校和体育学院的孩子中,基于野外和基于X射线双光吸收法的身体组成技术之间的小组和个人协议。

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摘要

Percentage fat (%FM) and fat-free mass (FFM) were measured in 37 children from a sports academy and in 71 children from standard schools with dual x-ray absorptiometry (DXA) and bioelectrical impedance analysis (BIA) using the manufacturer's equation (Tanita) and an ethnic-specific prediction equation (Haroun). In the standard school, BIA overestimated FFM and underestimated %FM by a mean of 2.5 kg and 5.2%, respectively, using the Tanita equation. In girls from the sports academy, the Tanita equation underestimated FFM and overestimated %FM compared with DXA (mean difference BIA-DXA; FFM: -1.3 kg; %FM: 1.8%). The Haroun equation improved mean agreement between BIA and DXA in children (11 to 15 years) from the sports academy and for boys from standard schools, but reduced accuracy on individual assessments. These results have important practice implications for dietetics practitioners specializing in sports nutrition and exercise trainers.
机译:使用制造商的方程式对37名来自体育学院的儿童和71名来自标准学校的双X射线吸收法(DXA)和生物电阻抗分析(BIA)的儿童测量了脂肪(%FM)和无脂肪质量(FFM) (Tanita)和特定种族的预测方程式(Haroun)。在标准学校中,BIA使用Tanita方程分别高估了FFM和低估了%FM 2.5%和5.2%。在体育学院的女生中,与DXA相比,Tanita方程低估了FFM,而高估了%FM(BIA-DXA平均差; FFM:-1.3千克;%FM:1.8%)。 Haroun方程改善了体育学院儿童(11至15岁)和标准学校男孩的BIA和DXA之间的平均一致性,但降低了个人评估的准确性。这些结果对专门从事运动营养和运动教练的营养学从业者具有重要的实践意义。

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