BMI, fat and muscle differences in urban women of five ethnicities from two countries
BMI, fat and muscle differences in urban women of five ethnicities from two countries
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DOI：
10.1038/sj.ijo.0803576
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发表时间：
2007-08-01
影响因子：
4.9
通讯作者：
Plank, L. D.
中科院分区：
文献类型：
--
作者：
Rush, E. C.;Goedecke, J. H.;Plank, L. D.
目的：目的：探讨五个民族的身体成分差异，特别是身体质量指数（BMI）和体脂百分比（%BF）之间的关系。设计：横断面。对象：721名18-60岁的表面健康女性（BMI：17.4-54.0 kg/m（2））来自南非（南非，201名黑人，94名欧洲人）和新西兰（新西兰，173名欧洲人，76名毛利人，84名太平洋人，93名亚洲印第安人）。人体测量，包括腰围，总，中心和外周体脂肪，骨矿物质含量和总apapricular骨骼肌质量（ASMM）来自双能X线吸收测量法。回归分析确定，在BMI为30 kg/m2时，SA欧洲女性的BF %为39%，这对应于SA黑人女性的BMI为29。新西兰欧洲人的BMI为30 kg/m2，相当于身体脂肪的43%，而新西兰毛利人、太平洋岛屿人和亚洲印第安人女性的相应BMI分别为34、36和26 kg/m2。中心脂肪质量在黑人SA比欧洲SA妇女（P < 0.001）。在新西兰，太平洋妇女有最低的中央脂肪质量和最高的ASMM，而亚洲印度妇女有最高的中央脂肪质量，但最低的ASMM和骨矿物质contents.Conclusions：%BF和BMI之间的关系因种族而异，可能是由于，在一定程度上，中央脂肪和肌肉发达的差异。使用通用BMI或腰围临界点可能不适合比较不同种族群体之间的肥胖患病率，因为它们不能一致地反映不同种族群体的肥胖和脂肪分布。
Objective: To investigate body composition differences, especially the relationship between body mass index (BMI) and percent body fat (%BF), among five ethnic groups.Design: Cross-sectional.Subjects: Seven hundred and twenty-one apparently healthy women aged 18-60 years (BMI: 17.4-54.0 kg/m(2)) from South Africa (SA, 201 black, 94 European) and New Zealand (NZ, 173 European, 76 Maori, 84 Pacific, 93 Asian Indian).Measurements: Anthropometry, including waist circumference, and total, central and peripheral body fat, bone mineral content and total appendicular skeletal muscle mass (ASMM) derived from dual X-ray absorptiometry.Results: Regression analysis determined that at a BMI of 30 kg/m(2), SA European women had a %BF of 39%, which corresponded to a BMI of 29 for SA black women. For a BMI of 30 kg/m(2) in NZ Europeans, equivalent to 43% body fat, the corresponding BMIs for NZ Maori, Pacific and Asian Indian women were 34, 36 and 26 kg/m(2), respectively. Central fat mass was lower in black SA than in European SA women (P < 0.001). In NZ, Pacific women had the lowest central fat mass and highest ASMM, whereas Asian Indian women had the highest central fat mass, but lowest ASMM and bone mineral content.Conclusions: The relationship between %BF and BMI varies with ethnicity and may be due, in part, to differences in central fatness and muscularity. Use of universal BMI or waist cut-points may not be appropriate for comparison of obesity prevalence among differing ethnic groups, as they do not provide a consistent reflection of adiposity and fat distribution across ethnic groups.