New percentage body fat prediction equations for Japanese males.
Anthropometry is simple, cheap, portable and non-invasive method for the assessment of body composition. While the Nagamine and Suzuki body density prediction equation has been frequently used to estimate %BF of Japanese, the equation was developed more than 40 years ago and its applicability to the current Japanese population has not been studied. This study aimed to compare %BF results estimated from anthropometry and dual energy X-ray absorptiometry (DXA) in order to examine applicability of the Nagamine and Suzuki equation. Body composition of 45 Japanese males (age: 24.3+/-5.5 years, stature: 171.6+/-5.8 cm, body mass: 62.6+/-7.1 kg, %BF: 15.7+/-5.6%) were assessed using whole-body DXA (Hologic QDR-2000) scan and anthropometry using the protocol of the International Society for the Advancement of Kinanthropometry (ISAK). From anthropometric measurements %BF was calculated using the Nagamine and Suzuki equation. The results showed that the Nagamine and Suzuki equation significantly (p<0.05) underestimated %BF of Japanese males compared to the DXA results. There was a trend towards greater underestimation as the estimated %BF values using DXA increased. New %BF prediction equations were proposed from the DXA and anthropometry results. Application of the proposed equations may assist in more accurate assessment of body fatness in Japanese males living today.
Kagawa
Masaharu
M
School of Public Health, Curtin University of Technology, Perth, WA 6845, Australia.
Kerr
Deborah
D
Binns
Colin W
CW
D015502:Absorptiometry, Photon; D000293:Adolescent; D000328:Adult; D000886:Anthropometry; D001823:Body Composition / Q000502:physiology*; D050218:Body Fat Distribution; D006801:Humans; D007564:Japan / Q000208:ethnology; D008297:Male; D012044:Regression Analysis; D014904:Western Australia