Child Development and Ecology of Minority Races in China

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In 1994,1995 and 1996, the Japan-China cooperative study team have sent from Japan to the field site of China, We have conducted a field-survey on the development and growth of children who live in mainland China, and collected a lot of data by minority ethnic groups and urban rural area as following items.1. growth status (height, weight, chest circumference, sitting height, biacromal breadth, bicristal breadth), 2. nutritional status (skinfold fat), 3. motor performance (running, throwing, jumping), 4. physical fitness (vital capacity, muscle strength, blood pressure), 5. climate and ecological indexes. We have contributed five articles to scientific journals of United Nation and Japan.According to these results, 1. An overall increasing secular trend during past four decade is apparent for body size of chinese children. 2. Wide variations of body size could be seen not only chinese children, but also minority ethnic groups in Yunnan province, and their body size correlated with ecological condition of temperature, precipitation, as well as altitude and longitude.Because of the relative closed living environment and the inbreeding habit, the growth and developmental status of minority ethnic children were significantly inferior to those of the Han groups.