基于田野和双能 X 射线吸收法的体成分技术在普通学校和体育学院儿童中的组间和个体间一致性。
Group and individual agreement between field and dual X-ray absorptiometry-based body composition techniques in children from standard schools and a sports academy.
出版信息
J Acad Nutr Diet. 2014 Jan;114(1):91-8. doi: 10.1016/j.jand.2013.06.353. Epub 2013 Sep 8.
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.
使用制造商的方程（Tanita）和特定种族的预测方程（Haroun），通过双能 X 射线吸收法（DXA）和生物电阻抗分析（BIA），在一个运动学院的 37 名儿童和标准学校的 71 名儿童中分别测量体脂肪百分比（%FM）和去脂体重（FFM）。在标准学校中，使用 Tanita 方程，BIA 分别高估了 FFM 和低估了 %FM，平均差值为 2.5 公斤和 5.2%。在运动学院的女孩中，与 DXA 相比，Tanita 方程低估了 FFM 并高估了 %FM（BIA-DXA 的平均差异；FFM：-1.3 公斤；%FM：1.8%）。Haroun 方程提高了运动学院的儿童（11 至 15 岁）和标准学校男孩的 BIA 和 DXA 之间的平均一致性，但降低了个体评估的准确性。这些结果对专门从事运动营养和运动训练的营养师具有重要的实践意义。
Zotero 插件