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首页> 外文期刊>European journal of clinical nutrition >Comparison of anthropometry to DXA: a new prediction equation for men.
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Comparison of anthropometry to DXA: a new prediction equation for men.

机译：人体测量学与DXA的比较：男性的新预测方程。

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OBJECTIVE: This study compared three professionally recommended anthropometric body composition prediction equations for men to dual energy X-ray absorptiometry (DXA), and then developed an updated equation, DXA Criterion (DC) from DXA. DESIGN: Cross-sectional. SETTING: Exercise Physiology Lab. University of Missouri-Columbia, USA. SUBJECTS: A total of 160 men aged 18-62 y old. INTERVENTIONS: Percent body fat (%BF) by anthropometry was compared to DXA on the same day. RESULTS: Although %BF was significantly correlated (r=0.923-0.942) (P<0.01) with DXA for all three equations, each equation underestimated %BF (range=3.1-3.3%) (P<0.01) compared to DXA. The following DC equation for men was created: %BF=0.465+0.180(Sigma7SF)-0.0002406(Sigma7SF)(2)+0.06619(age); (Sigma7SF=sum of chest, midaxillary, triceps, subscapular, abdomen, suprailiac, thigh; age=years). The predicted residual sum of squares (PRESS) R(2) was high (0.90) and the PRESS standard error of estimates was excellent (2.2% at the mean) for theDC equation when applied to our sample of 160 men. CONCLUSIONS: The currently recommended anthropometric equations for men underestimate %BF compared to DXA. The DC equation yields a more accurate estimation of %BF in men aged 18-62 y old. The results from this study support the need for the current %BF standards and norms for men to be adjusted upward.
机译：目的：本研究将三个专业推荐的男性人体测量人体预测方程与双能X射线吸收法（DXA）进行了比较，然后从DXA开发了更新的方程DXA标准（DC）。设计：横截面。单位：运动生理学实验室。美国密苏里大学哥伦比亚分校。主题：共有160名年龄在18-62岁之间的男性。干预措施：在同一天，通过人体测量法得出的体脂百分比（％BF）与DXA进行了比较。结果：尽管对于所有三个方程，％BF与DXA显着相关（r = 0.923-0.942）（P <0.01），但与DXA相比，每个方程均低估了％BF（范围= 3.1-3.3％）（P <0.01）。创建了以下男性直流方程：％BF = 0.465 + 0.180（Sigma7SF）-0.0002406（Sigma7SF）（2）+0.06619（年龄）; （Sigma7SF =胸部，腋下，肱三头肌，肩s下，腹部，鞘上膜，大腿的总和;年龄=岁）。当将DC方程应用于我们的160名男性样本时，预测的残差平方和（PRESS）R（2）高（0.90），而PRESS的估计标准误非常好（平均值为2.2％）。结论：与DXA相比，目前推荐的男性人体测量方程低估了％BF。 DC方程可更准确地估算18-62岁男性的％BF。这项研究的结果表明，目前需要向上调整男性％BF标准和规范。

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