Tahara Y, Yukawa K, Tsunawake N, Saeki S, Nishiyama K, Urata H, Katsuno K, Fukuyama Y
Department of Health and Physical Education, Faculty of Liberal Arts, Nagasaki University.
Nihon Koshu Eisei Zasshi. 1993 May;40(5):353-62.
A study was conducted to evaluate body composition (Hydrostatics = Under-Water Weighing), skinfold thickness, and BMI in 97 junior high school girls, aged 12 to 15, in Nagasaki City. Body density was measured by under-water weighing, and the two compartments--fat weight (Fat) and lean body mass (LBM, or fat free weight: FFW)--were calculated using the formulas of Brozek et al. The results were as follows; 1. Mean values of body density were 1.0501 in first grade girls, 1.0476 in the second grade, and 1.0466 in the third grade. 2. Mean values of percentage body fat (% Fat) were 21.1% in the first grade, 22.1% in the second and 22.5% in the third. 3. Lean body mass (LBM) and LBM/Height increased significantly with advance from the first to the third grade. 4. The correlation coefficient between percent body fat and the sum of two skinfold thicknesses, the sum of three skinfold thicknesses, or the sum of seven skinfold thicknesses were 0.81, 0.80, and 0.82 respectively and all statistically significant (p < 0.001). 5. The correlation coefficient between BMI and the sum of two skinfold thicknesses, the sum of three skinfold thicknesses (r = 0.841) or the sum of seven skinfold thicknesses were 0.85, 0.84, and 0.84 respectively, and all statistically significant (p < 0.001). 6. Mean values of BMI, WSR, ASR, and WHR in all subjects (n = 97) were 19.6, 0.72, 0.39 and 0.43 respectively.
一项研究旨在评估长崎市97名年龄在12至15岁的初中女生的身体成分（流体静力法=水下称重）、皮褶厚度和体重指数（BMI）。通过水下称重测量身体密度，并使用Brozek等人的公式计算两个部分——脂肪重量（Fat）和去脂体重（LBM，或无脂肪重量：FFW）。结果如下：1. 一年级女生的身体密度平均值为1.0501，二年级为1.0476，三年级为1.0466。2. 身体脂肪百分比（%Fat）的平均值在一年级为21.1%，二年级为22.1%，三年级为22.5%。3. 从一年级到三年级，去脂体重（LBM）和LBM/身高显著增加。4. 身体脂肪百分比与两个皮褶厚度之和、三个皮褶厚度之和或七个皮褶厚度之和的相关系数分别为0.81、0.80和0.82，且均具有统计学意义（p<0.001）。5. BMI与两个皮褶厚度之和、三个皮褶厚度之和（r=0.841）或七个皮褶厚度之和的相关系数分别为0.85、0.84和0.84，且均具有统计学意义（p<0.001）。6. 所有受试者（n=97）的BMI、腰臀比（WSR）、腰高比（ASR）和腰臀比（WHR）的平均值分别为19.6、0.72、0.39和0.43。
