Dettwiler W, Ribordy M, Donath A, Scherrer J R
Schweiz Med Wochenschr. 1978 Dec 2;108(48):1914-6.
The weighing of the human body under water is an application of Archimedes' law. Fat being lighter than water or than the structures of lean body mass, body fat can be measured by determining the specific gravity of the human body; that is, by underwater weighing. Body fat has been determined in an "ideal" sample of 14 men and 23 women, all aged 20 years. Testing against a reference measure of body fat makes it possible to test the validity of some anthropometric measurements and of some indices of obesity. These indices offer no advantages over anthropometric measurements.
人体在水下称重是阿基米德定律的一种应用。脂肪比水或瘦体重的结构轻，通过测定人体的比重，即通过水下称重，可以测量体脂。在一个由14名男性和23名女性组成的“理想”样本中测定了体脂，所有受试者年龄均为20岁。与体脂参考测量值进行对比测试，可以检验一些人体测量指标和肥胖指数的有效性。这些指数与人体测量指标相比并无优势。
