Scheffler Christiane, Greil Holle, Hermanussen Michael
Department of Human Biology, Institute for Biochemistry and Biology, Universität Potsdam, Potsdam, Germany.
Aschauhof, Eckernförde-Altenhof, Germany.
Pediatr Res. 2017 May;81(5):825-830. doi: 10.1038/pr.2017.3. Epub 2017 Jan 9.
Under normal nutritional and health conditions, body height, weight and head circumference are significantly related. We hypothesize that the apparent general association between weight, height, and head circumference of the growing child might be misleading.
We reanalyzed data of 7,444 boys and 7,375 girls measured in East-Germany between 1986 and 1990, aged from 0 to 7 y with measurements of body length/height, leg length, sitting height, biacromial shoulder breadth, thoracic breadth, thoracic depth, thoracic circumference, body weight, head volume, percentage of body fat, and hip skinfold vertical, using principal component analysis.
Strong associations exist between skeletal growth, fat accumulation, and head volume increments. Yet in spite of this general proportionality, skeletal growth, fat acquisition, and head growth exhibit different patterns. Three components explain between almost 60% and more than 75% of cumulative variance between birth and age 7 y. Parameters of skeletal growth predominantly load on the first component and clearly separate from indicators of fat deposition. After age of 2 y, head volume loads on a separate third component in both sexes indicating independence of head growth.
Under appropriate nutritional and health circumstances, nutritional status, body size, and head circumference are not related.
在正常营养和健康状况下，身高、体重和头围显著相关。我们推测，成长中儿童体重、身高和头围之间明显的总体关联可能具有误导性。
我们重新分析了1986年至1990年间在东德测量的7444名男孩和7375名女孩的数据，这些儿童年龄在0至7岁之间，测量了身长/身高、腿长、坐高、肩峰间肩宽、胸宽、胸深、胸围、体重、头容积、体脂百分比以及髋部皮褶垂直厚度，并使用主成分分析。
骨骼生长、脂肪堆积和头容积增加之间存在强关联。然而，尽管存在这种总体比例关系，但骨骼生长、脂肪获取和头部生长呈现出不同模式。三个成分解释了出生至7岁之间几乎60%至超过75%的累积方差。骨骼生长参数主要加载在第一个成分上，并与脂肪沉积指标明显分开。2岁以后，头容积在男女中均加载在一个单独的第三个成分上，表明头部生长具有独立性。
在适当的营养和健康状况下，营养状况、身体大小和头围并无关联。
