Thomas T R, Cook P L
Br J Sports Med. 1978 Mar;12(1):33-6.
A description is given of a simple, inexpensive and versatile method for estimating underwater weight. The use of a portable stock tank allows the determination of % Fat by underwater weighing without requiring a swimming pool, built-in tank, or special facility. Twenty-eight college students were weighed on two separate testing sessions 24-48 hours apart. Ten trials were performed at each session. The mean of the last five trials was used in determining underwater weight. The test-retest reliability coefficient was high, r = 0.98, and most of the successive trial correlations were above 0.99. The mean % Fat for the women (N = 9) was 22.2 +/- 5.9 and for the men (N = 19) was 13.7 +/- 5.1.
本文介绍了一种简单、廉价且通用的水下称重估算方法。使用便携式储水箱可通过水下称重测定体脂百分比，无需游泳池、内置水箱或特殊设施。对28名大学生进行了两次单独测试，测试间隔24至48小时。每次测试进行十次测量。最后五次测量的平均值用于确定水下重量。重测信度系数较高，r = 0.98，且大多数连续测量的相关性高于0.99。女性（N = 9）的平均体脂百分比为22.2 +/- 5.9，男性（N = 19）为13.7 +/- 5.1。
