中日青少年BMI纵向变化比较研究

Comparative Study into the BMI Longitudinal Change between Chinese and Japanese Teenagers

青少年的体格状况是评价一个国家经济发达程度的晴雨表。人们熟知日本青少年的健康状况从战后经济快速增长到现在的稳定发展期间有了很大的提高。过去20多年来,中国经济同样得到飞速发展,因此,从纵向的角度研究日本青少年的健康状况有助于了解和改善中国青少年的健康工作和营养状况。利用1960-2005年期间日本国民营养健康调查中的身高、体重和BMI数据,将11-25岁年龄段的身高、体重和BMI进行纵向关联分析作图,同时对中国某高校大学生的身高,体重和BMI数据进行分析和作图。通过比较,得到以下结果:日本男性的BMI在青少年的中后期达到峰值,随后,这种增加趋势明显减少;中国男性在15-25岁之间没有出现BMI的峰值,而是呈现线性增长趋势;日本和中国女性的BMI都在青少年的中后期达到峰值,然后呈现下降趋势。

The physical stature of teenagers is regarded as one of the yardsticks to evaluate a nation＇s economic development. It is well known that the physical stature of Japanese teenagers has been greatly improved from post - WWII economic rapid development to present stable economic development. Chinese economy has also been rapidly developing in the last 20 years. In this sense, a longitudinal study into the health status of Japanese teenagers can help understand and improve the physical endowment and nourishment state of Chinese teenagers. This research refers to the height, weight and BMI data recorded by Japanese Citizen Nourishment and Health Investigation from 1960 to 2005. A curve diagram is made for those aged 10 to 25 by connecting the data vertically. Meanwhile another curve diagram is made conceming the height, weight and BMI data of given Chinese university students. A comparison between the two curve diagrams reveals the following results： the BMI of Japanese men reaches the Peak during their mid or late teens, but it presents a tendency of slow increase. However there is no evidence to show any peak in Chinese men＇s BMI between the age of 15 and 25 and it presents a tendency to increase linearly. The BMI of Japanese and Chinese women reaches the peak in the mid and late teens and after that it presents a tendency of decrease.