title: New percentage body fat prediction equations for Japanese males.
abstract: 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.
authors.affiliation: School of Public Health, Curtin University of Technology, Perth, WA 6845, Australia.
authors.forename: Masaharu
authors.initials: M
authors.lastname: Kagawa
authors.forename: Deborah
authors.initials: D
authors.lastname: Kerr
authors.forename: Colin W
authors.initials: CW
authors.lastname: Binns
mesh_terms: 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