Abstract: Stature, body mass and four other body composition inde values of 607 Li adults (308 males and 299 females) were measured in five villages of Wuzhishan City, Hainan Province. The percent body fat (Pbf), lean mass (ml), fat mass (mf), lean mass index (Ilm) and fat mass index (Ifm) were calculated in November 2014. The study finds that Pbf, mf and Ifm of females are higher than those of males, while ml and Ilm values are the opposite. As age increases, stature and ml of the Li decreases gradually, and Pbf, mf, and Ifmincrease gradually. The characteristic curve of the sample indicates that both Ibm and Ifm can predict Pbf of the Li, and accuracy of the Ifm is much higher than accuracy of Ibm in estimating Pbf. It also indicates that Ifm is a better index than Ibm in evaluating fatness.

Key words: Percent body fat; Lean mass; Lean mass index; Fat mass index; Li