In order to assess the physical growth and development, and nutritional status of primary, middle and high school in the city of Seoul, physiques of 4,041 persons(Male : 2,096, Female : 1,945) were measured from March 1 to 31 in 1995 and various physical and nutritional indices, maximum growth age related to them were calculated.
The results are as follows :
The growth of body height showed straight development among male in the ages 7∼16 and among female 7∼14, and after that showed slower development. The age of cross over between two sexes was between 11.5 to 12.5 years of age. The maximum growth age was between 11 and 12 years of age(7.28㎝) in male and between 11 and 12 years of age(9.77㎝) in female.
In terms of body weight, it also showed straight development among male in the ages 7∼16 and among female 7∼14, and after that showed slower development. The maximum growth age was between 11 and 12 years of age(7.64㎏) in male and between 11 and 12 years of age(8.19㎏) in female.
In terms of chest girth, it showed two step development among male in the age of 7∼13 and 13∼17, and among female in the age of 7∼14 and 14∼17. The age of cross over between two sexes was 11 and 12 years of age.
In terms of sitting height, it showed two step development in the age of 7∼14 and 14∼17 of both sexes and the age of cross over between two sexes was between 10.5 to 14.5 years of age.
The maximum growth age was between 11 and 12 years of age(3.64㎝) in male and between 11 and 12 years of age(5.98㎝) in female.
2. Maximum Growth Age of Physical Growth and Development
In body height, MGA was 10.59 for male and 10.34 for female which showed that MGA for both sexes appeared in similar periods.
In body weight, MGA was 10.30 for male and 10.30 for female which showed that MGA for both sexes appeared in similar periods.
In chest-girth, MGA was 14.74 for male and 11.60 for female which showed that MGA for female about 3 years earlier than for male.
In body height, MGA was 14.69 for male and 11.38 for female which showed that MGA for both sexes appeared in similar periods.
Maximum growth ages of physiques appeared in order of body height > body weight > sitting > height > chest-girth.
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