Use of skinfolds and bioelectrical impedance for body composition assessment after weight reduction.
Use of skinfolds and bioelectrical impedance for body composition assessment after weight reduction.
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使用皮褶和生物电阻抗进行减肥后的身体成分评估。
DOI：
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发表时间：
1992
影响因子：
3.5
通讯作者：
J. Wilmore
中科院分区：
文献类型：
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作者：
I. Paijmans;K. Wilmore;J. Wilmore
本研究的目的是确定标准方法的准确性，估计个人谁经历了大量和快速减肥的身体成分。受试者包括14名使用极低热量饮食的快速减肥计划的参与者，以及14名根据性别，年龄和身高与肥胖组匹配的正常身体成分的个体。将两组的生物电阻抗（BI）和皮褶推导的相对体脂估计值与静水称重进行比较。平均值的基础上，估计的标准误差（SEE）和简单的相关性，没有一个皮褶方程或BI程序是非常准确的体重减轻的肥胖患者组中的体脂预测。Durnin-Rahaman（D-R）和Durnin-Womersley（D-W）方程与流体静力学测定值无显著差异;然而，相关性较低（r = 0.69和0.60）。Jackson-Pollock（J-P）方程与BI技术具有高度的相关性（r = 0.78和0.89），但与静水称重法有显著差异。所有方程的SEE和BI均较高（大于4.5%）。J-P方程对对照组的预测最佳（r = 0.88，SEE 3.5%，平均值为21.2 +/- 4.3 vs 22.4 +/- 6.2%）。BI和D-R方程也相当准确。我们的结论是，额外的研究将是必要的，以确定一个预测方程，使用皮褶或BI，将提供更准确的估计相对体脂肪的个人谁经历了大量的体重减轻在相对较短的时间内。
The purpose of this study was to determine the accuracy of standard methods for estimating body composition in individuals who have undergone substantial and rapid weight loss. Subjects included 14 participants in a rapid weight reduction program using a very low-calorie diet, and 14 individuals of normal body composition matched with the obese group on the basis of gender, age, and height. Bioelectrical impedance (BI) and skinfold-derived estimates of relative body fat were compared with hydrostatic weighing in both groups. On the basis of mean values, standard errors of estimate (SEE) and simple correlations, none of the skinfold equations or the BI procedure were very accurate in the prediction of body fat in the group of weight-reduced obese patients. The Durnin-Rahaman (D-R) and Durnin-Womersley (D-W) equations were not significantly different from the hydrostatically determined values; however, correlations were low (r = 0.69 and 0.60). The Jackson-Pollock (J-P) equations and BI technique had high correlations (r = 0.78 and 0.89), but were significantly different from hydrostatic weighing. SEE for all equations and BI were high (greater than 4.5%). The control group was best predicted by the J-P equation (r = 0.88, SEE 3.5%, mean value of 21.2 +/- 4.3 vs 22.4 +/- 6.2%). BI and the D-R equation were also reasonably accurate. We conclude that additional research will be necessary to identify a predictive equation using skinfolds or BI that will provide more accurate estimates of relative body fat in individuals who have undergone substantial weight reduction in a relatively short period of time.