抄録
We identified biological parameters based on cross-sectional height data in Mongolia and analyzed theheight growth of Mongolian youth. We then attempted to elucidate the relationship between physical growth and economic conditions in Mongolia from a comparison with minority ethnic groups in China，by testing physical maturity. The results showed early maturation in physical growth in ethnic groups distributed in economically developed regions. A trend was also seen for later maturation and tall height，which is a characteristic of Caucasoid people in northwestern ethnic groups. A large difference was seen in the age at the maximum peak velocity（MPV）in height growth even between geographically close ethnic groups in the south，and adult heights were shorter than those in northern ethnic groups. From it is thought that the surge in height growth during puberty is closely related to innate racial factors，and that in addition to racial factors，adult height is greatly affected by later external factors such as nutritional
intake. Therefore，if the biological parameter of adult height can be determined in Mongolia and Chinese
minority ethnic groups，the effects on physical growth in minority groups could be estimated from
economic growth stagnation and delayed infrastructure development when making comparisons with the
Han Chinese living in the southern coastal regions of China. It would then be presumed that for Mongolian
youth，similar to Chinese ethnic minorities，delayed infrastructure development due to economic
stagnation affects biological parameters.
