• The Korean Journal of Physiology
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• v.2 no.2
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• pp.11-20
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• 1968

Maximal oxygen uptake was measured in thirty-three secondary school girls by means of the treadmill test. Eighteen middle school girls aged 14.0 (range: $13.0{\sim}15.9$) years and fifteen high school girls aged 16.9 (range: $16.0{\sim}18.0$) years served as subjects. Maximal treadmill run lasted for 2 minutes and 20 seconds and the expired air was collected in a Douglas bag through a J-valve during the last one minute period. In general, absolute values of various measurements in the high school girls were greater than those of the middle school girls. When values were expressed on the body weight or lean body weight basis, however, work capacity of middle school girls was superior to that of the high school girls. The detailed results are as follows: 1. In middle school girls maximal oxygen uptake was 1.78 l/min., 47.4 ml/kg body weight, 12.3 ml/cm body height, and 61.7ml/kg lean body mass. In high school girls maximal oxygen uptake was 1.93 l/min., 39.7ml/kg body weight, 12.3 ml/cm body height, and 51.2 ml/kg LBM. Although the absolute value of maximal oxygen uptake was greater in high school girls than in middle school girls, values expressed on the body weight basis showed the reverse trend, namely, values of the middle school girls was greater than those of the high school girls. 2. The ratio of maximal to resting oxygen uptake was 8.8 in the middle school girls and was 10.2 in the high school girls. 3. Maximal pulmonary ventilation in the middle school girls was 55.3 l/min. and 66.1 l/min. in the high school girls. The ratio of maximal to resting pulmonary ventilation was 10.2 in the middle school girls and 10.1 in the high school girls. 4. The correlation between body weight and maximal oxygen uptake was relatively high, namely, r=0.79 both in middle and high school girls. The correlation coefficient between body weight and maximal pulmonary ventilation was a little less that of between maximal oxygen uptake and showed a value of r=0.60 both in middle and high school girls. The lean body mass was a poor reference of maximal oxygen uptake or maximal pulmonary ventilation as compared to body weight. The correlation between maximal oxygen uptake and maximal pulmonary ventilation was high and the coefficient of correlation in middle school girls was 0.927 and in high school girls it was 0.856. 5. Maximal ventilation equivalent was 30.9 liters in middle school girls and 33.9 liters in high school girls. This indicated that no hyperventilation was induced during the maximal of oxygen uptake exercise period as related to the maximal oxygen uptake. 6. Heart rate reached to the peak value within 1.5 minutes after beginning of maximal oxygen uptake run and remained at the same peak plateau level throughout the entire running period. Heart rate decreased steeply on cessation of running and subsided slowly thereafter. The maximal heart rate was 184 beat/min. in middle school girls and 189 beat/min. in high school girls. 7. Maximal oxygen pulse was 9.4 in middle school girls and 9.9 ml/beat in high school girls.

• Journal of Korean Home Economics Education Association
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• v.2 no.1
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• pp.1-13
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• 1990

The purpose of this study is to investigate the degree of learning interest in the curriculum of home economics for the middle and high school girls in korea and Japan, and to obtain the basic guidance for the improvement of the effect of home economics education. In this study korea and Japanese textbooks were compared and the questionaires were administered to 290 middle school girls and 270 high school girls in Chong-Ju, korea, and 261 middle school girls and 248 high school girls in Tokyo, Japan. The obtained data were analyzed by percentile and $\chi$$\^$2/-test. In comparision of the degree of interest in hand sewing and machine sewing korean middle school girls showed higher interest than the high school girls, on the other hand, in Japan, the high school girls were more interested. In the unit of making a simple clothes, the middle school girls of both countries were more interested than the high school girls, and the degree of interest of Japanese girls was higher than that of korean girls.

• Journal of the Korean Society of Food Culture
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• v.17 no.5
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• pp.560-568
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• 2002

This study was carried out to compare the dietary behaviors and the nutrient intake of a middle school and a high school girls in Iksan. The subjects consisted of 132 middle school girls and 122 high school girls in Iksan. The proportion of subjects eating meals irregularly was higher in the high school girls (98.6%) than in the middle school girls(78.7%). The proportion of subjects skipping a meal also was higher in the high school girls(61.5%) than in the middle school girls(53.8%) and most of them (65.8%) skipped breakfast though they thought breakfast was the most important meal of a day (87.4%). The subjects tended to overeat at lunch (38.6%), and at dinner (55.9%). The main reasons of skipping a meal were 1. They had no time (49.3%), and 2. They had poor appetite (24.7%) Mean daily energy intake was 2198.5Kcal in the middle school girls and 2150.5Kcal in the high school girls and mean daily intake of protein, iron, vitamin $B_1$, vitamin $B_2$ and niacin was significantly higher (p<0.05, p<0.01) in the middle school girls than in the high school girls. Mean daily calcium, iron, vitamin $B_1$, vitamin A and C intake of middle school girls were lower than those of RDA and all nutrients intake of high school girls except for phosphorus was lower than those of RDA. The index of nutritional quality (INQ) was under 1.0 for calcium, iron, vitamin A, $B_1$ and C. Mean blood level of cholesterol, triglyceride, Hb, Hct, GOT, GPT were 170.9mg/dl, 78.9mg/dl, 13.1g/dl, 39.5%, 18.8mg/d and 15.7mg/dl, respectively.

• The Korean Journal of Physiology
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• v.16 no.1
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• pp.51-56
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• 1982

We must encourage the use of the spirometer as part of routine examination of nearly all adult patients. Despite the theoretical problems of the water spirometer and its Poor frequency response, the water spirometer is adequate for the physiological function tests even in healthy people. The aim of this study was to report the pulmonary function studies of athletic swimmers. Subjects were 85 athletic swimmers from 9 to 25 years of age. They were elementary school boys and girls, middle school boys and girls, high school boys and girls, and college students. The results are as follows: 1) Frequency of breath: (cycle/min, $M{\pm}SD$) Elementary school boys show $19{\pm}4.7$, elementary school girls $22{\pm}7.9$, middle school boys $17{\pm}2.4$, middle school girls $18{\pm}8.2$, high school boys $15{\pm}3.4$, high school girls $15{\pm}9.7$, and college male students $12{\pm}3.2$. 2) Vital capacity: (1, $M{\pm}SD$) Elementary school boys show $2.60{\pm}0.480$, elementary school girls $2.22{\pm}0.412$, middle school boys $3.63{\pm}0.598$, middle school girls $2.80{\pm}0.303$, high school boys $4.70{\pm}0.487$, high school girls $3.23{\pm}0.509$, and college male students $4.30{\pm}0.608$. 3) Tidal volume: (ml, $M{\pm}SD$) Elementary school boys show $462{\pm}59$, elementary school girls $395{\pm}110$, middle school boys $524{\pm}78$, middle school girls $421{\pm}59$, high school boys $612{\pm}101$, high school girls $494{\pm}123$, and college male students $603{\pm}121$. 4) Breath holding time: (sec, $M{\pm}SD$) Elementary school boys show $58{\pm}21.2$, elementary school girls $36{\pm}11.1$, middle school boys $61{\pm}16.7$. middle school girls $53{\pm}21.0$, high school boys $64{\pm}9.1$, high school girls $49{\pm}15.3$, and college male students $81{\pm}23.0$.

• Fashion & Textile Research Journal
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• v.11 no.4
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• pp.602-613
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• 2009

This study aims to improve the fit of middle and high school girls' uniforms. This study researched on the sizing system reflecting their body figures. The results are as follows. First, to classify the middle and high school girls' figures, factor analysis, and cluster analysis were conducted. 4 factors were extracted for upper body of the middle school girls, and 5 factors were extracted for the highschool girls. For the lower body, 3 factors were extracted for both the middle and high school girls. The middle school girls were then divided into 4 groups for the upper body and 4 groups for the lower body. The high school girls were divided into 4 upper and lower body groups. Third, KS size intervals were used for frequency distribution of height and bust for the bodice, height and waist for the lower body. Sizing system of the uniform company and the frequency distribution of sizes were compared. As a result, sizing system of the uniform company and the frequency distribution overlapped very little. Fourth, sizing system considering body type distribution and high frequency distribution of sizes was suggested. As a result when 6 sizes were suggested 30% of the population was covered, and when 11 sizes were suggested 55% of the population was covered.

• The Korean Journal of Physiology
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• v.1 no.1
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• pp.77-82
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• 1967

The normal lung volumes were determined and subdivided under sitting position in 48 middle school girls, 49 high school girls and 44 house wives. All subjects were free of pulmonary and vascular diseases. The vital capacity was measured by Mckessons spirometer and the residual volume was determined by Rahn's three breathing method. 1. The lung volumes (BTPS) of middle school girls determined were: $RV\;0.59{\pm}0.11l\;FRC\;1.45{\pm}2.22l\;VC\;2.68{\pm}0.29l$ 2. The lung volumes (BTPS) of high school girls determined were: $RV\;0.83{\pm}0.19l\;FRC\;1.9{\pm}0.25l\;VC\;3.15{\pm}0.24l$ 3. The lung volumes (BTPS) of house wives determind were: $RV\;0.95{\pm}0.61{\ell}\;FRC\;2.1{\pm}0.25{\ell}\;VC\;3.06{\pm}0.29l$ 4. The calculated residual ratio $(RV/TLC{\times}100)$ were: $17.7{\pm}2.57%$ in middle school girls and $20.6{\pm}3.65%$ in high school girls and $24.0{\pm}2.31%$ in house wives 5. The functional residual ratio $(FRC/TLC{\times}100)$ were: $43.7{\pm}5.98%$ in middle school girls and $48.8{\pm}4.41%4 in high school girls and $52.6{\pm}5.38%$ in house wives. 6. The correlation coefficients between vital capacity and total lung capacity were r=0.96 in middle school girls and r=0.986 in high school girls and r=0.856 in house wives. 7. The regression equations were obtained follows: $TLC(l) =1.105{\times}VC+0.304$ (in middle school girls) $TLC(l) =1.551{\times}VC-0.902$ (in high school girls) $TLC(l) =0.999{\times}VC+0.954$ (in house wives)

• Journal of the Korean Society of Clothing and Textiles
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• v.32 no.8
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• pp.1190-1201
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• 2008

The objective of this study is to compare and analyze middle and high school boys' and girls' uniform wearing conditions. The survey was conducted online and data were obtained from 907 middle and high school boys and girls. The results of this study are as follows. First, most boys and girls did not know their body sizes other than their height and weight. Second, when purchasing the school uniforms, over 70% of the boys and girls chose to try on the uniforms before their purchase and over 60% of the boys and girls had trouble selecting their sizes just by reading the labels. Third, both boys and girls considered the fit as the most important factor. When purchasing jackets, both middle and high school boys considered the shoulder width as most important. Middle school girls considered the jacket and sleeve length as most important, whereas high school girls considered the shoulder width, waist, and bust as most important. When purchasing skirts or slacks, waist girth was considered as most important. Fourth, boys repurchased more school uniforms than girls. Boys have outgrown their uniforms usually in the length categories, whereas girls have outgrown in the girth categories. Fifth, more girls(72.7%) modified their uniforms than the boys(56.8%). Boys usually bought bigger uniforms, modified them to fit and when they grow out of their uniforms they planned to modify their uniforms again whereas girls modified their uniforms to follow the trend. Sixth, the online shopping mall survey has revealed that both boys and girls liked the idea of 3D model that reflect their own body shapes, but they had low preference to purchase school uniforms online. Online purchase has been more attractive to the boys than to the girls, while the way of fashioning uniforms has been more attractive to the girls than to the boys.

• Journal of the Korean Society of School Health
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• v.22 no.2
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• pp.1-11
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• 2009

Purpose : The purpose of this study was to examine aggression of middle school girls with type of school and gender role identity. Method : The subjects of this study were 526 second-year middle school girls (265 girls in the coeducational middle schools, 261 girls in the girls' middle schools) in Busan. This study was conducted from 14th to 29th of December, 2008 using Korean Sex Role Inventory(KSRI) and Aggression Inventory. Results : 1. There was statistically significant difference in gender role identity types according school types ($x^2$=8.813, p=.032). 2. The whole aggression grade point average was 1.58${\pm}$.40 points(highest score: 4), and reactive-overt aggression was highest in the aggression types(2.06${\pm}$.63). 3. There was not statistically significant difference in aggression of middle school girls according to type of school (t=.188, p=.664). 4. There was statistically significant difference in degrees of aggression according to gender role identity types. The degrees of aggression in masculinity type was highest [grade point average was 1.70${\pm}$.44 points(highest score: 4)]. 5. There was not interactive effect in aggression between type of school and type of gender role identity. Conclusions : The findings of this study contribute to providing basic data for development of education programs or activities for middle school girls to relieve aggression according to gender role identity types.

• Journal of Fashion Business
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• v.13 no.3
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• pp.25-39
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• 2009

This research attempts to analyze the physical characteristics of middle school girls and compare the product sizes and patterns of school uniform blouses by brand. And wearing tests were performed regarding the appearance of blouse by bland. The results are follows. The standard deviation for bust circumference and waist circumference of middle school girls measured in 2004 were showed extremely large difference among individuals compared to the previous results. While waist back length reached adult size by $2^{nd}$ grade high school, bishoulder length reached adult size by $2^{nd}$ grade middle school. And girls after $2^{nd}$ grade middle school had their depth and breadth of bust, underbust circumference and bust circumference growing proportionally. These results need to be reflected in producing a pattern drafting for middle schoolers. By comparing wearing test results on appearance, it was shown that in terms of ease of bust circumference, the expert group evaluated brand with less ease as not having adequate ease compared to brand, while the middle schooler group evaluated as having sufficient ease. The front silhouette also showed same results. This reflects the preference for appearance by the middle schooler group, which is a factor to be considered during pattern drafting of school uniform blouse.

• Journal of the Korean Society of Food Culture
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• v.29 no.5
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• pp.373-379
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• 2014

The purpose of this study was to investigate the relationships among snacking behaviors and depression in middle school students. A survey was conducted on 777 middle school students (491 boys and 286 girls). Using a self-reporting method, the participants took 20 minutes to complete the questionnaires. Our data revealed that the height and weight of boys were 172.66 cm and 63.48 kg, respectively, whereas those of girls were 159.86 cm and 51.62 kg, respectively. Sleep durations of boys and girls were 6.44 and 6.41 hours, respectively. Boys ate more rice cake than girls, whereas girls ate more biscuits than boys. The average B.D.I (Beck Depression inventory) scores for boys and girls were 9.73 and 11.49, respectively. Degree of depression was significantly higher in girls compared to boys. We also observed significant correlations between depression and snacking (rice cake, biscuits, chocolate, and fried potato). This study may provide basic information on snacking behaviors and depression in middle school students, and the findings suggest that proper control of emotions is required to maintain desirable eating behaviors in middle school students.