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Body Composition Assessed by Sulfer Hexafluoride-dilution Method

通过六氟化硫稀释法评估身体成分

基本信息

批准号：
07680131
负责人：
NAKADOMO Fumio
金额：
$ 1.47万
依托单位：
OSAKA PREFECTURAL COLLEGE OF NURSING
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1996
项目状态：
已结题

项目摘要

The purpose of this study were to determine the reproducibility, varidity and cross-validity of sulfer hexafluoride (SH) dilution method for the indirect assessment of human body composition. The subjects were 1) 90 males and 131 females, aged 18-64 yrs, in 1995 grant-in-aid for scientific research, and 2) 46 boys and 35 girls, aged 6-17 yrs, and 21 male elders and 14 female elders, aged 65-81 yrs in 1996 grant-in-aid for scientific research. Analysis of data indicated that both reproducibility (r=0.999) and validity (r=0.999) were very high in male and female populations. However, the absolute body volume measured by SH method was approximately 1% higher than criterion value. In the present study., orrected prediction equations for determining one's body density (Db) were developed as follows.Db = Wt/(0.99V-0.13) in male children ----- (1)Db = Wt/(0.98V+0.15) in female children --- (2)Db = Wt/(1.00V-0.98) in adult men --------- (3)Db = Wt/(1.01V-1.10) in adult women ------- (4)Db = Wt/(0.98V+0.39) in elderly men ------- (5)Db = Wt/(0.96V+1.53) in elderly women ----- (6)where Wt = weight (kg) and V = body volume (1).Equations (3) and (4) were cross-validated in the other groups of adult men and women. The mean Db values obtained for those groups were not significantly different from the validation group. The absolute values were almost the same. It is apparent that prediction equations developed in this study based on the SH method has the potential to serve as another useful measure (criterion) of body composition.

本研究的目的是确定用于间接评估人体成分的六氟化硫（SH）稀释方法的再现性、变异性和交叉有效性。研究对象为：1）1995年科研资助对象，男性90名，女性131名，年龄18-64岁；2）1996年科研资助对象，年龄6-17岁，男性46名，女性35名，男性老年人21名，女性老年人14名，年龄65-81岁。数据分析表明，男性和女性人群的再现性（r=0.999）和有效性（r=0.999）都非常高。然而，SH法测得的绝对体体积比标准值高出约1%。在本研究中，确定人体密度（Db）的校正预测方程如下：男孩Db = Wt/(0.99V-0.13) ----- (1)女孩Db = Wt/(0.98V+0.15) --- (2)成年男性Db = Wt/(1.00V-0.98) --------- (3)Db = 成年女性中的 Wt/(1.01V-1.10) ---------- (4)Db = 老年男性中的 Wt/(0.98V+0.39) ---------- (5)Db = 老年女性中的 Wt/(0.96V+1.53) ----- (6) 其中 Wt = 体重 (kg)，V = 身体体积 (1)。方程 (3) 和 (4) 在其他成年男性组中进行了交叉验证，妇女。这些组获得的平均 Db 值与验证组没有显着差异。绝对值几乎相同。显然，本研究中基于 SH 方法开发的预测方程有可能作为身体成分的另一种有用的测量（标准）。