Luque Veronica, Mendez Georgina, Capdevila Francesca, Closa Ricardo, Ferre Natalia, Reina Garcia Maria, Escribano Joaquin
University Rovira i Virgili, Paediatrics Unit, C/Sant Llorenç 21, Reus, 43201 Spain.
Ann Hum Biol. 2009 Jan-Feb;36(1):88-97. doi: 10.1080/03014460802575633.
Subcutaneous fat stores in newborns have been related to weight (W) and skinfolds (SK); both are influenced by gestational age (GA) and there are few studies analysing the association between them.
The present study assessed fat storage in term newborns that are appropriately nourished.
Subjects were 1259 singleton term newborns, with appropriate weight for GA.
A cross-sectional observational study was utilized where weight, length, tricipital skinfold (TSK), subscapular skinfold (SSK) and mid upper arm (MUA) circumference were measured at birth. MUA areas and the TSK/W and SSK/W ratios were calculated. Data were analysed according to gender and GA.
Weight and length were higher in males, while TSK, SSK, MUA fat area, MUA fat percentage, TSK/W and SSK/W were higher in females. Weight and length increased with GA in both genders. SK did not increase with GA, except the TSK in males. The TSK/W and SSK/W ratios decreased significantly with GA age in both genders. Percentiles of TSK/W and SSK/W ratios are presented.
The study provides a new perspective to the idea that fat storage increases continuously during the last period of gestation. The data presented showed that this phenomenon is not clearly demonstrated for full-term infants with appropriate weight for GA.
新生儿的皮下脂肪储存与体重（W）和皮褶厚度（SK）有关；两者均受胎龄（GA）影响，且很少有研究分析它们之间的关联。
本研究评估营养状况适宜的足月儿的脂肪储存情况。
研究对象为1259名单胎足月儿，其体重与胎龄相称。
采用横断面观察性研究，在出生时测量体重、身长、三头肌皮褶厚度（TSK）、肩胛下皮褶厚度（SSK）和上臂中部（MUA）周长。计算MUA面积以及TSK/W和SSK/W比值。根据性别和胎龄对数据进行分析。
男性的体重和身长较高，而女性的TSK、SSK、MUA脂肪面积、MUA脂肪百分比、TSK/W和SSK/W较高。男女两性的体重和身长均随胎龄增加。除男性的TSK外，SK并不随胎龄增加。两性的TSK/W和SSK/W比值均随胎龄显著降低。列出了TSK/W和SSK/W比值的百分位数。
该研究为妊娠后期脂肪储存持续增加这一观点提供了新视角。所呈现的数据表明，对于体重与胎龄相称的足月儿，这一现象并不明显。
