由于测量身体密度的实验技术，人体脂肪含量评估存在差异。

Variations in the assessment of the fat content of the human body due to experimental technique in measuring body density.

作者信息

Durnin J V

出版信息

Ann Hum Biol. 1982 May-Jun;9(3):221-5. doi: 10.1080/03014468200005711.

DOI:10.1080/03014468200005711

Abstract

The body fat content of 15 adults, 6 females and 9 males, was estimated from body density. The body density of each individual was measured by weighing under water after (i) maximal expiration, (ii) moderate expiration, (iii) minimal expiration, (iv) moderate inspiration, (v) light meal, (vi) heavy meal, (vii) carbonated drink. Variations in the levels of expiration and inspiration caused only about 1% difference in the estimated fat content of the body. Consumption of food before the experiment had a similar effect. Comparatively large volumes of gas in the alimentary tract (caused by a carbonated drink before the experiment) resulted in a difference of about 1.5% in the body fat content. These variations observed in the estimation of body fat by densitometry are well within the basic errors of the method.

摘要

通过身体密度估算了15名成年人（6名女性和9名男性）的体脂含量。在以下几种情况下通过水下称重测量每个人的身体密度：（i）最大呼气后，（ii）适度呼气后，（iii）最小呼气后，（iv）适度吸气后，（v）进食少量食物后，（vi）进食大量食物后，（vii）饮用碳酸饮料后。呼气和吸气水平的变化仅导致身体脂肪含量估算值相差约1%。实验前进食食物也有类似效果。消化道中相对大量的气体（由实验前饮用碳酸饮料引起）导致身体脂肪含量相差约1.5%。通过密度测量法估算体脂时观察到的这些变化完全在该方法的基本误差范围内。