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Korean Journal of Preventive Medicine 1987;20(1): 97-113.
A Semi-longitudinal Study on Physiques and Nutritional Status of Korean Youth in a Seoul Special City.
Tai Young Yoon
ABSTRACT
This study was carried out to know physical growth and development, physical and nutritional indices and body fat weight and so forth by semi-longitudinal research method to measure body height, body weight, chest girth and sitting height of 260 of general high school and 306 of vocational high school 3rd grade students who are living in Seoul and born from 1966 March 1st to 1967 Feb. 28th. The results are as follows; 1) Physical growth and development. Growth in terms of body height showed one step straight linear development, and that of body weight showed two step straight linear development in each section in high school. The age of cross over between two sexes of general high school students was between 10.6 to 12.3 years in body height, between 10.8 to 13 years in body weight, between 11.2 to 14.6 years in chest girth and between 10 to 13 years in sitting height. The age of cross over between two sexes of vocational high school students was between 10.5 to 12.5 years in body height, between 10.5 to 12.5 years in body weight, between 10.5 to 12.5 years in chest girth and between 10.5 to 12.5 years in sitting height. In this periods, female group was superior to male group and after that male group was superior to female group again. The growth of vocational school students was superior to that of general school students in both sexes in terms of body height and body weight significantly. 2) Physical growth and nutritional indices. In all cases of relative body weight, relative chest girth and relative sitting height, it was found to be increasing thereafter with advancing ages. In cases of R hrer index and Kaup index, it was found to be reaching to normal state thereafter with advancing ages. In each case of Vervaeck and Pelidisi index, it was found to be increasing and reaching to normal state thereafter with advancing ages. 3) Total body fat by vital measuring method. Average values of body surface area, body volume and body density are measured indirectly by using the body height and body weight as Table 12, 13 and 14. The rate of body fat weight of general high school students was from minimum 11.96+/-3.53%(3.33+/-1.10 kg) to maximum 18.25+/-6.46% (9.08+/-2.01 kg) in male and from 25.88+/-3.62% (7.96+/-0.78kg) to 43.00+/-7.22% (12.91+/-1.21 kg) in female. The rate of body fat weight of vocational high school students was from minimum 11.20+/-2.88% (3.32+/-1.13kg) to maximum 17.16+/-5.88 (10.83+/-3.16 kg) in male and from minimum 25.11+/-2.26% (7.91+/-0.89 kg) to maximum 42.16+/-7.96% (13.22+/-1.75 kg) in female.
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