Validation of skinfold thickness and hand-held impedance measurements for estimation of body fat percentage among Singaporean Chinese, Malay and Indian subjects
Validation of skinfold thickness and hand-held impedance measurements for estimation of body fat percentage among Singaporean Chinese, Malay and Indian subjects
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DOI：
10.1046/j.1440-6047.2002.00258.x
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发表时间：
2002-01-01
影响因子：
1.3
通讯作者：
Deurenberg-Yap, M
中科院分区：
文献类型：
--
作者：
Deurenberg, P;Deurenberg-Yap, M
使用由脂肪、水、蛋白质和矿物质组成的化学四室模型（BF%(4C)）测量了298名新加坡华人、马来人和印度男女的体脂率（BF%）。此外。重量。测量高度、皮褶厚度和节段阻抗（从手到手）。使用文献中的预测方程（皮肤褶皱BF%(SKFD)）和使用制造商的手持式阻抗分析仪软件（BF%(IMP)）预测体脂率。受试者年龄18-70岁，体重指数16.0 - 40.2 kg/m(2)。体脂率在6.5 ~ 53.3%之间，肤色预测偏差(BF%（4C)-BF%(SKFD)，平均值+/- SD）分别为-0.4 +/- 3.9、2.3 +/- 4.1和3.1 +/- 4.2，华人与马来人和印度人不同。马来人与印度人的差异从0开始显著（P < 0.05），华人、马来人和印度人的偏差分别为0.5 +/- 3.8、0.0 +/- 4.8和0.9 +/- 4.0。这些偏差与零没有显著差异，在不同种族群体之间也没有差异。华裔、马来裔和印度裔女性的手持阻抗BF%偏差分别为-0.7 +/- 4.5、1.5 +/- 4.4和0.4 +/- 3.8，这些偏差与零无显著差异，但华裔与马来裔和印度裔存在显著差异，华裔、马来裔和印度裔男性的手持阻抗BF%（IMP）偏差分别为0.7 +/- 4.6、1.9 +/- 4.8和2.0 +/- 4.4。分别。马来和印度男性的这些偏见与零显著不同，与华人男性的偏见显著不同。偏倚与体脂水平、年龄以及阻抗的相对臂幅（臂幅/高度）相关，校正后各民族间的偏倚差异消失。研究表明，不同种族对预测BF%的偏差有所不同，这种差异可以用身体成分和体型的差异来解释。这一信息很重要，在使用预测方法比较不同种族人群的身体成分时应予以考虑。
Body fat percentage (BF%) was measured in 298 Singaporean Chinese, Malay and Indian men and women using a chemical four-compartment model consisting of fat, water, protein and mineral (BF%(4C)). In addition. weight. height, skinfold thickness and segmental impedance (from hand to hand) was measured. Body fat percentage was predicted using prediction equations from the literature (for skinfolds BF%(SKFD)) and using the manufacturer's software for the hand-held impedance analyser (BF%(IMP)). The subject ranged in age from 18-70 years and in body mass index from 16.0 to 40.2 kg/m(2). Body fat ranged from 6.5 to 53.3%, The biases for skinfold prediction (BF%(4C)-BF%(SKFD), mean +/- SD) were -0.4 +/- 3.9, 2.3 +/- 4.1 and 3.1 +/- 4.2 in Chinese, Malay and Indian women, respectively, the Chinese being different from the Malays and Indians. The differences were significant from zero (P < 0.05) in the Malays and Indians, For the men, the biases were 0.5 +/- 3.8, 0.0 +/- 4.8 and 0.9 +/- 4.0 in Chinese, Malays and Indians, respectively. These biases were not significantly different from zero and not different among the ethnic groups. The biases for hand-held impedance BF% were -0.7 +/- 4.5, 1.5 +/- 4.4 and 0.4 +/- 3.8 in Chinese, Malay and Indian women, These biases were not significantly different from zero but the bias in the Chinese was significantly different from the biases in the Malays and Indians, In the Chinese, Malay and Indian men, the biases of BF%(IMP) were 0.7 +/- 4.6, 1.9 +/- 4.8 and 2.0 +/- 4.4. respectively. These biases in Malay and Indian men were significantly different from zero and significantly different from the bias in Chinese men. The biases were correlated with level of body fat and age, and also with relative arm span (arm span/height) for impedance, After correction, the differences in bias among the ethnic groups disappeared. The study shows that the biases in predicted BF% differ between ethnic groups, differences that can be explained by differences in body composition and differences in body build. This information is important and should be taken into account when comparing body composition across ethnic groups using predictive methods.