Growth of height and leg length of children in Beijing and Xilinhot, China
Growth of height and leg length of children in Beijing and Xilinhot, China
复制标题
DOI：
10.1537/ase.070130
复制
发表时间：
2008-04-01
影响因子：
0.7
通讯作者：
Lu, Shunhua
中科院分区：
文献类型：
--
作者：
Ashizawa, Kumi;Tanamachi, Noriko;Lu, Shunhua
多篇关于中国儿童成长的论文已在中国当地的中文期刊上发表。然而，我们注意到身高和体重是这些研究的主要焦点。由于腿长相对于身高在人类生物学中很有意义，目前的研究重点是这一比例的增长。1997年在北京调查了587名6-18岁的男孩和625名6-18岁的女孩，2005年在内蒙古锡林浩特调查了579名7 - 18岁的男孩和615名7-18岁的女孩。测量身高和腿长（髂嵴高度），并计算每个儿童的腿长与身高的比值。得到了平均距离曲线和样条平滑的年生长量曲线。为了明确两组中国儿童之间的差异，采用日本儿童的数据作为对照。北京儿童身高高于锡林浩特儿童，但腿长无差异。锡林浩特市男童身高年增长样条曲线的“起飞”和“高峰”年龄分别比北京市男童早1.2-1.8岁。在女孩中，这两个年龄在两个城市几乎相同，尽管锡林浩特女孩的“峰值”高出1.8厘米。北京和锡林浩特的男生腿长基本相同。在锡林浩特组的女孩中，青春期后腿长更大。锡林浩特市儿童的腿长/身高比大于北京市儿童。这表明，在中国，社会经济因素影响身高的增长在更大程度上比腿长的增长，腿长和腿长相对于身高可能是由遗传因素控制。
A number of papers on the growth of Chinese children have been published in local journals in China in the Chinese language. However, we noticed that height and weight are the main focus of these studies. Because leg length relative to height is of interest in human biology, the current study focuses on the growth of this proportion. Two groups of Chinese children were investigated: 587 boys and 625 girls in Beijing in 1997 aged 6-18 years, and 579 boys and 615 girls in Xilinhot, Inner Mongolia, in 2005 aged 7-18 years. Height and leg length (iliospinal height) were measured, and the ratio of leg length to height was calculated for each child. Mean distance curves and spline-smoothed yearly increment curves were obtained. In order to clarify the difference between the two groups of Chinese children, data from Japanese children were adopted as a control. The Beijing children were taller than the Xilinhot children, but no difference was detected in leg length between them. The ages at 'take-off and 'peak' obtained on the yearly increment spline-smoothed curve of height in the Xilinhot children boys were 1.2-1.8 years earlier, respectively, than those of the Beijing boys. In the girls, these two ages were almost the same in the two cities, although the 'peak' was 1.8 cm greater in the Xilinhot girls. Leg length in the boys was almost the same in both Beijing and Xilinhot. In the girls of the Xilinhot group, leg length was greater after puberty. Consequently, the ratio of leg length to height was greater in the Xilinhot children than the Beijing children. It is suggested, in China, that socioeconomic factors influence growth of height to a greater extent than growth of leg length, and that leg length and leg length relative to height might be controlled by a genetic factor.