Validity of anthropometric equations for the estimation of body density in adolescent athletes.
Validity of anthropometric equations for the estimation of body density in adolescent athletes.
复制标题
用于估计青少年运动员身体密度的人体测量方程的有效性。
DOI：
10.1249/00005768-198401000-00016
复制
发表时间：
1984
影响因子：
4.1
通讯作者：
R. W. Hammer
中科院分区：
文献类型：
--
作者：
W. Thorland;G. Johnson;G. Tharp;T. Fagot;R. W. Hammer
对141名青少年男性（年龄：X +/- SD = 17.43 +/- 0.96 yr）和133名青少年女性（16.51 +/- 1.39 yr）运动员进行了研究，以确定可用的人体测量方程估计身体密度（BD）的有效性。人体测量了8个皮褶，9个周长和4个直径。通过水下称重（校正残余肺体积）测定的雄性动物和雌性动物的体密度分别为1.080 +/- 0.010 g X ml-1和1.066 +/- 0.010 g X ml-1。17个选定的方程的男性交叉验证显示，有效性系数范围从R2 = 0.29-0.67和总误差分数范围从0.0062-0.0277 g × ml-1。在女性中，交叉验证的15个选定的方程显示的有效性系数范围从R2 = 0.31-0.67和总误差分数范围从0.0064-0.0214 g X ml-1。虽然线性或二次型方程在估计雄性BD值时表现出可接受的准确度，但只有二次方程在雌性中表现出相似的准确度水平。基于这些结果，以及考虑与测试者间误差和预测分数的方差相关的特征，杰克逊和波洛克、洛曼和波洛克等人的二次方程，以及线性方程的福赛斯和Sinning，被认为是特别适合的估计BD的青少年运动员。
One hundred forty-one adolescent male (age: X +/- SD = 17.43 +/- 0.96 yr) and 133 adolescent female (16.51 +/- 1.39 yr) athletes were studied to determine the validity of available anthropometric equations for estimating body density (BD). Anthropometric measures were taken of eight skinfolds, nine circumferences, and four diameters. Body density, determined by underwater weighing (corrected for residual lung volume), was 1.080 +/- 0.010 g X ml-1 for the males and 1.066 +/- 0.010 g X ml-1 for the females. Cross-validation of 17 selected equations on the males revealed validity coefficients ranging from R2 = 0.29-0.67 and total-error scores ranging from 0.0062-0.0277 g X ml-1. Among the females, cross-validation of 15 selected equations revealed validity coefficients ranging from R2 = 0.31-0.67 and total-error scores ranging from 0.0064-0.0214 g X ml-1. While equations of either linear or quadratic form demonstrated acceptable accuracy in the estimation of male BD values, only quadratic equations displayed similar levels of accuracy among the females. Based on these results, as well as consideration of characteristics related to inter-tester error and the variance of predicted scores, the quadratic equations of Jackson and Pollock, Lohman, and Pollock et al., as well as the linear equation of Forsyth and Sinning, were found to be particularly appropriate for the estimation of BD in adolescent athletes.