Ikeda M, Watanabe T, Koizumi A, Kumai M, Fujita H
Tohoku J Exp Med. 1983 Feb;139(2):113-9. doi: 10.1620/tjem.139.113.
From the national and regional statistics on the body dimensions of schoolchildren at the 6th year grade in primary schools (i.e., 11-year-olds) and at the 3rd year grade in junior high schools (i.e., 14-year-olds), the secular gains in height and weight by the children of the same age were calculated for the three periods of 1960-4, 1972-76 and 1976-81. Compared with the first period (i.e., 1960-4) when the growth acceleration was maximal, the secular gain was apparently reduced in the second and third study periods (i.e. 1970's) to the level of 1/2 to 1/3 of that in the first period, and was next to nil in some districts. Such deceleration was coupled with changes in seasonal growth patterns and diminution of urban-rural gaps both in the body size and the secular gain. For example, the body dimensions of the children in the City of Sendai did not differ in 1981 between the core part of the city and the surroundings, while the difference had been observed till late 1970's. The 1979 measurements of height and weight of Japanese children are compared with counterpart values observed in other countries.
根据全国和地区关于小学六年级（即11岁）和初中三年级（即14岁）学童身体尺寸的统计数据，计算了1960 - 1964年、1972 - 1976年和1976 - 1981年这三个时期同龄儿童身高和体重的长期增长情况。与生长加速最大的第一个时期（即1960 - 1964年）相比，在第二个和第三个研究时期（即20世纪70年代），长期增长明显减少至第一个时期的1/2到1/3水平，在一些地区几乎为零。这种减速伴随着季节性生长模式的变化以及城乡在身体尺寸和长期增长方面差距的缩小。例如，1981年仙台市儿童的身体尺寸在市中心和周边地区并无差异，而这种差异在20世纪70年代末之前一直存在。将1979年日本儿童的身高和体重测量值与其他国家观察到的对应值进行了比较。
