Tafeit E, Möller R, Sudi K, Horejsi R, Berg A, Reibnegger G
Institute for Medical Chemistry and Pregl Laboratory, Karl-Franzens-University, A-8010 Graz, Austria.
Am J Phys Anthropol. 2001 May;115(1):57-61. doi: 10.1002/ajpa.1056.
The new optical device Lipometer allows noninvasive, quick, and safe determination of the thickness of subcutaneous adipose tissue (SAT) layers (in mm) at any site of the human body. The specification of 15 evenly distributed body sites enables the precise measurement of subcutaneous body fat distribution, so-called subcutaneous adipose tissue topography (SAT-Top). SAT-Top was measured in 980 children aged 7-19 years. In this paper we describe the degree to which SAT-Top body sites are intercorrelated. We consider whether a meaningful reduction of data is possible using factor analysis, which factors can be extracted, and how SAT-Top data of children can be added to a factor value plot, depicting the essential results of age-dependent subcutaneous fat development. SAT layers situated on the same body area provide correlation coefficients up to +r = 0.91. Two factors are extracted: factor 1, containing all upper body sites (from neck to hip); and factor 2, consisting of all leg body sites. When all 980 children are divided into three age groups in a factor value plot, the first age group (7-11 years) shows almost equal SAT-Top development in boys and girls. Afterwards, for the consecutive age groups 2 (11-15 years) and 3 (15-19 years), the age-dependent subcutaneous fat development of boys and girls progresses into nearly orthogonal directions.
新型光学设备Lipometer能够在人体任何部位对皮下脂肪组织（SAT）层厚度（以毫米为单位）进行无创、快速且安全的测定。15个均匀分布的身体部位的设定使得能够精确测量皮下身体脂肪分布，即所谓的皮下脂肪组织地形图（SAT-Top）。对980名7至19岁儿童进行了SAT-Top测量。在本文中，我们描述了SAT-Top身体部位之间的相互关联程度。我们考虑是否可以使用因子分析对数据进行有意义的简化、可以提取哪些因子，以及如何将儿童的SAT-Top数据添加到因子值图中，该图描绘了与年龄相关的皮下脂肪发育的基本结果。位于同一身体区域的SAT层提供的相关系数高达+r = 0.91。提取了两个因子：因子1，包含所有上半身部位（从颈部到臀部）；因子2，由所有腿部身体部位组成。当在因子值图中将所有980名儿童分为三个年龄组时，第一年龄组（7至11岁）的男孩和女孩的SAT-Top发育几乎相同。之后，对于连续的年龄组2（11至15岁）和3（15至19岁），男孩和女孩与年龄相关的皮下脂肪发育朝着几乎正交的方向发展。
