Clark B A, Mayhew J L
Br J Sports Med. 1980 Dec;14(4):225-9. doi: 10.1136/bjsm.14.4.225.
A simple inexpensive densiometric method of determining body composition was compared to a more sophisticated one. Body density (Db), lean body mass (LBM), and relative fat content (%fat) were determined for 16 volunteers, 9 men and 7 women using a simple T-bar apparatus suspended in a swimming pool, and an electronic apparatus in conjunction with a metal tank. Residual volumes (RV) used in the determinations were estimated from age and height (RV-1), held constant at 1,300 ml for men and 1.000 ml for women (RV-2), and measured by the nitrogen washout method (RV-3). No significant difference was observed between the two methods of weighing, although significant differences did exist among the RV techniques. It was concluded that a simplified method of determining body composition is acceptable for screening purposes, but long term studies might require more sophisticated techniques with RV measured at the time of weighing.
将一种简单廉价的测定身体成分的密度测定方法与一种更复杂的方法进行了比较。使用悬挂在游泳池中的简单T型杆装置以及与金属罐配合使用的电子装置，对16名志愿者（9名男性和7名女性）测定了身体密度（Db）、瘦体重（LBM）和相对脂肪含量（%脂肪）。测定中使用的残气量（RV）根据年龄和身高估算（RV-1），男性固定为1300毫升，女性固定为1000毫升（RV-2），并通过氮洗脱法测量（RV-3）。两种称重方法之间未观察到显著差异，尽管RV技术之间确实存在显著差异。得出的结论是，一种简化的身体成分测定方法用于筛查目的是可以接受的，但长期研究可能需要更复杂的技术，在称重时测量RV。
