Longitudinal study on the physical growth of Japanese children and youth.

本报告分析了日本儿童青春期成长运动各参数之间的相互关系。在OGI生长研究的11,256名儿童中，受试者包括174名女孩和174名男孩。人体测量学变量包括身高、腿长、坐高、臂长、肩宽、臀宽和体重。用AUXAL3计算机程序中的BTT方法对12年的个体生长数据进行分析，应用三重Logistic函数得到青少年的生长参数。研究发现：1)青少年爆发的时间不是同时发生的。腿的生长发育到坐高。2)变量的最终大小与变量的时间和速度无关。3)在纵向维度上，青春期后期(起跳年龄和高峰年龄)与较高的速度有很强的相关性。4)女孩的髋宽和男孩的肩宽呈现出性别特有的特征生长模式。5)因素分析显示，控制青少年生长迅速的因素有时间相关因素、尺寸相关因素、速度相关因素。再次，从分析中提取了与男女髋部宽度相关的因素和控制坐高增长的因素。

This report analyzed interrelationships of parameters on adolescent growth sport of Japanese children. The subjects consisted of 174 girls and 174 boys amongst of 11,256 children of the Ogi Growth Study. Anthropometric variables were height, leg length, sitting height, arm length, shoulder width, hip width and weight. Individual growth data for 12 years were analyzed by the BTT method of AUXAL3 computer program based on the application of a triple logistic function to yield adolescent growth parameters. The following finding were obtained :1) Timings of adolescent spurt did not occur simultaneously for the variables. The growth of leg proceeded to that of sitting height. The timing of growth spurt for weight was the latent among the variables.2) Final size of the variables did not correlate with their timing and velocity of the variables.3) As for the longitudinal dimensions, late occurrence of adolescence (take-off and peak ages) strongly correlated with higher peal velocity.4) Hip width for girls and shoulder width for boys showed characteristic growth patterns that is peculiar to the sex.5) Factor analysis showed several factors controlling the adolescent growth spurt such as timing related factor, size related factor, velocity related factor. Again, a factor related with hip width for the sexes and a factor controlling the sitting height growth are extracted from the analysis.