• Journal of Nutrition and Health
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• v.41 no.8
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• pp.786-796
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• 2008

This study examined the influence of the nutrient intake status, dietary habit, and academic stress of elementary school children on their academic achievement. Two-hundred and twenty-four fifth-graders in Bucheon-si, Gyeonggido were surveyed. The study included the 24 hr-recall, anthropometric measurement, assessment of stress level and academic achievement. The subjects were normal in height, weight and Rohrer index, but higher percentage of underweight was seen in girls and vice versa in boys. The overall nutrient intake and dietary habits were fairly good, but Ca and folate intake was less than 75% KDRIs and dietary habits of boys were inferior. Academic stress level of all the subjects was not high. In terms of academic performance and its relations with nutrient intake, the more the amount of nutrient intake, the higher the academic performance. Especially, it was true for the energy, protein, phosphorus, potassium, zinc, polyunsaturated fatty acids, and n-6 fatty acid intakes (p < 0.05). The overall academic performance was higher for those who eating-out less frequently. Children with higher comprehensive dietary habit scores have shown better academic performance (p < 0.05). Less stress implied to those shown higher academic achievement while those with relatively poor academic performance showed high stress level since their grade did not improve as much as they anticipated. In conclusion, the academic achievement was higher for those who have a better nutritional status, better dietary habits, and lower stress levels. Therefore, it is critical for nutritionists, parents, and teachers to improve the nutritional status and dietary habits as well as to help them manage their stress levels, which will eventually contribute to an enhanced academic performance.

• Journal of the Korean Society of Food Culture
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• v.15 no.5
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• pp.338-348
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• 2000

This study was carried out to survey dietary intakes of 739 elementary students, 4-6grades, in Won-Ju area, in 1998, to enhance the effect of school foodservice. The results were as follows : 1. Most investigated students had nuclear family with one brother or one sister. 2. The average height of boys and girls was $141.0{\pm}7.7cm\;and\;141.4{\pm}8.0cm$, and the average weight of them was $35.7{\pm}8.5kg\;and\;36.1{\pm}8.5kg$, respectively. There was no significant difference between boys and girls. 3. The rates of obesity were 12.2% in urban, 7.4% in rural and 0% in remote rural area by Rohrer index and 22.9% in urban 13.9% in rural and 0% in remote rural area by the rate based on standard weight. 4. All nutrients intake of investigated students were sufficient according to recommended dietary allowances. All nutrients intake of boys were higher than those of girls. Calcium intake of children with well educated mother was higher than that of children with poorly educated mother. Children in remote rural area had lower carbohydrate, calory and calcium intake than those in other areas. 5. Students without breakfast had lower protein and iron intake and higher calory from snack than those with breakfast. 6. Students who thought themselves to be obesity had low intake of carbohydrate, total calory and calory from snack and students with regular exercise had high intake of protein, iron, calcium and calory from snack. 7. Students with unbalanced diet, snack intake in large quantities and irregular meal had lower protein, fat, iron and calcium intake and higher calory from snack than other students. As a result, Students without breakfast often had lower all nutrients except calory from snack than other students, significantly. Problems of nutrients intake of elementary students in Won-Ju area were high rate of obesity, high intake of protein, unbalanced nutrients intake of students without meal or students with excessive eating and limited calcium intake of students with poorly educated mother. It is important to confirm desirable food habits for balanced nutrients intake in all areas and to increase calcium intake of students in remote rural area.

• Journal of the Korean Society of Food Culture
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• v.20 no.5
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• pp.594-602
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• 2005

The purpose of this study was to investigate eating behaviors related to snack and self-purchasing snack (SPS) among elementary school children. Self-administered questionnairs were completed by 352, 5th and 6th grade elementary school students living in 3 different regions which included apartment region in Bundangn, Sungnam (apartment group, n=116), residences in Seodaemun-Gu and Mapo-Gu, Seoul (kang-buk group, n=103) and residence in industrial region in Sungnam (industry group, n=133). The results were as follows: A significantly higher proportion (64.7%) of the apartment group had breakfast every morning than those of kang-buk (48.6%) or industry (52.1%) group (p<0.01). As for the frequency rate of snack and self-purchasing snack (SPS), 53.9% of the subjects answered taking snack more than once per day, 22.8%, once for few days and 23.3%, almost not. However, 15.5% of the subject had SPS once or more per day, 30.7%, 1-2 times per week and 22.4%, almost not. Those of apartment group showed significantly lower SPS frequencies (p<0.01), since higher proportions answered having SPS 1-2times per week (40.9%) and almost not (31.3%) compared to other groups. The reasons for having SPS turned out to be 'hunger' 54.7%, 'being habitual', 15.9%, 'bing bored', 15.7% and 'with peers' 13.7%. When subjects selected SPS foods, they considered taste (31.5%), price (23.0%), mood at the time (14.1%), sanitorial aspect (10.2%) and quantity (10.1%) rather than nutritional aspect (7.2%). Subjects' pocket money was estimated as 3736 won per week and SPS expense per time as 706 won. But subjects who spent more than 2000 won for SPS expense were significantly higher (33.0%) in apartment group than those of other groups (p<0.01). The favorite snack items that subjects having at home were fruit, ice cream, milk and yoghurt, cookies, ramen and bread in order. And favorite SPS items turned out to be ice cream, cookies, duckbokki, frozen bars, gum, chocholate and candy in order. The frequency rate of SPS were evaluated to be significantly related by several variables: those living in apartment area (p<0.01), those taking breakfast regularly (p<0.01), those of normal weight status by Rohrer index (p<0.05) and those receiving less pocket money (p<0.01) showed lower SPS frequency rate.

• Korean Journal of Community Nutrition
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• v.11 no.5
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• pp.551-561
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• 2006

This study was carried out to evaluate the effect of mothers' attitudes on preparing baby foods for their children's food habits and development. The subjects were allocated to 419 preschool children, aged 3 - 5 years. This study surveyed by questionnaire, which was answered by the children's mothers. Subjects were classified by two groups, active and passive, based on their mothers' weaning attitudes. In the active group, mothers tried to make a variety of foods for preparing the baby foods, whereas mothers in the passive group didn't try to make it too much. Family income was higher in the active group and the subject' mothers had more jobs than those in the passive group, whereas their parent's education levels showed no differences. According to Rohrer index, 2.6% of subjects were obese in the active group, whereas 7.7% in the passive group. These data were shown significantly different between the groups. There were no differences in mother's food habits and breast-feeding versus formula feeding between the two groups. However, children's food habits were shown statistically different between the two groups. Higher regularity of meals, higher frequencies of snacks at home, higher frequencies of fruit, com, sweet potato as a snacks and less instant foods were revealed in the active group more than in the passive group. The major problem of children's food habits was an unbalanced diet (52.7%) and the major reasons for unbalanced diet were the taste (58.7%) and the texture (23.2%). The active uoup used more fruits and vegetables than the passive group. Also there were significant differences to solve problems of children's unbalanced diets. In the positive group, 14.4% of mothers tried to develop new cooking methods for solving the problem of an unbalanced diet, but 8.2% did in the passive group. furthermore, 2.3% of mothers in the positive group removed unpleasant items of the food, whereas 6.9% did in the passive. The average nutritional knowledge scores on a 10 scale were 7.2 and 6.9 in active and passive groups, respectively, and they were statistically different. Mothers among the active group explained the knowledge for food and nutrition to their children more than those in the passive group. These results suggest that mothers' attitudes for baby food are an important factor for forming their children's food habits. Therefore, it is necessary to develop a nutritional education program, materials and new recipes for a variety of baby foods to mothers.

• Journal of the Korean Society of Food Science and Nutrition
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• v.22 no.6
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• pp.716-723
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• 1993

This study was carried out to estimate intake level of Pb, Fe, Cu in rural area of Korea(12 males and 18 females). Analyses for the nutritional status of the record, duplicated diet collections, 24-hour urine collections, and venous blood sampling before measuring of blood pressure. The mean age and blood pressure of the subjects were 45.8$\pm$11.1years and 117.5$\pm$22.2/80.8$\pm$15.6mmHe in males, and 41.9$\pm$11.0years, 110.0$\pm$ 11.9/73.9$\pm$8.5mmHg in females, respectively. In respect to both males and females, mean BMI were 22.0$\pm$2.3, 23.1$\pm$3.0, mean Rohrer index were 131.8$\pm$14.8, 142.4$\pm$20.2 and mean skinfold thickness were 12.4$\pm$5.9mm, 25.3$\pm$7.4mm, respectively. The daily mean intakes of Pb, Fe, and Cu estimated for 3 days were 277.2$\pm$111.2$\mu\textrm{g}$/day, 12.7$\mu\textrm{g}$ 7.6mg/day, and 3.0$\pm$1.4mg/day in males and 192.0$\pm$72.4$\mu\textrm{g}$/day, 13.3$\pm$5.8mg/day, and 3.7 $\pm$1.7mg/day in females, respectively. The mean concentrations of serum Pb, Fe, Cu were 11.0$\pm$2.0$\mu\textrm{g}$/dl, 131.1$\pm$42.6$\mu\textrm{g}$/dl, 120.3$\pm$25.7$\mu\textrm{g}$/dl in males and 9.0$\pm$1.2$\mu\textrm{g}$/dl, 112.2$\pm$ 35.9$\mu\textrm{g}$/dl, 117.3$\pm$17.9$\mu\textrm{g}$/dl in females, respectively. The mean levels of Hb and Hct were 15.1$\pm$1.1g/dl, 45.2$\pm$3.3% in males and 13.1$\pm$0.8g/dl, 39.8$\pm$2.6% in females, respectively. The 24-hour urinary excretions of Pb, Fe, Cu were 35.5$\pm$10.0$\mu\textrm{g}$/day, 0.16$\pm$0.12mg/day, 60.12$\pm$0.02$\mu\textrm{g}$/day in males, and 25.3$\pm$11.0$\mu\textrm{g}$/day, 0.24$\pm$0.20mg/day, 70.07$\pm$0.03$\mu\textrm{g}$/day in females, respectively. In conclusion, the Pb intake in self selected diet of this subjects was not in the level that antagonized to Fe and Cu metabolism seriously.

• Journal of the Korean Society of Clothing and Textiles
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• v.32 no.6
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• pp.959-967
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• 2008

The body measurement ratios and indices used in this study are all 3D female measurement data of the two countries were obtained from Size Korea Project and SizeUSA Project. The purpose of the study is to compare and analyze body measurement data between two countries. The results of this research are helpful for the clothing manufacturer and company to trade with America. The samples were 1,988 Korean and 6,306 American females. Thirty-five body measurement ratios and indices were chosen as the principal measurements in making garments. The conclusion of this research was as follow; First, U.S. females have measurements that exceed Korean women, except for crotch length total and shoulder slope. Second, the correlation coefficients of height and weight are relatively higher than other measurements in the two countries' body measurements. Finally, American women's height ratios are significantly bigger than Korean women's in most height ratios. On the other hand, Korean are significantly bigger than American in weight ratios. The drop values of Korean females are also smaller than those of American. It was recognized that American women are much bigger, wider and more obese than Korean according to the results by utilizing the girth ratios. BMI, Rohrer and Vervaeck index.

• Journal of the Korean Society of Clothing and Textiles
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• v.30 no.12 s.159
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• pp.1690-1696
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• 2006

The purpose of this study is to provide the basic data useful in designing apparel patterns for aged abdominal obese women. The body measurements of 318 women were taken at random, whose ages were over 60 and fields of action were colleges, sports centers, or business sites in Seoul and the neighboring districts. A total of 33 features in the upper body and lower body were used fer the anthropometric measurement and analysis using anthropometry. The collected measurement data were processed statistically using the SPSS 12.0 program for technical statistical analysis, t-test, frequency analysis, correlation analysis. The results of the study are as follows. 1. Subjects were classified into two groups as a result of analysis for measurement data. It was revealed that 251(about 79 percent) women of total subjects(n=318) have a characteristic of abdominal obese body type and elderly women of these group usually had big abdomen rather than hip. The criteria of abdominal obesity based on waist-hip ratio, WHR(=0.85). 2. Aged abdominal obese women have shown much larger size in most body measurements except items of some vertical length, such as bust ponit-bust point, font interscye, back interscye with circumference and depth of armscye, bust, waist, abdomen and hip while showing no difference in height, biacrominal breadth, hip width, neck shoulder point to breast point, crotch length. 3. Vervaeck index(=100.1) and Rohrer index(=1.7) indicated that the abdominal obese women were fat in overall body. And aspect ratio of waist(=0.86), abdomen(=0.92) and hip(=0.75) also appeared high that the shape of cross sections in those regions was similar to a figure of circle 4. In view of the correlation coefficient between hip circumference and the rest measurement items, and between hip circumference inclusively of the abdomen protrusion and the rest measurement items, there were found some differences for each group. In case of Group (abdominal obese group), the former is smaller than the other. 5. In case of Abdominal obese women, hip circumference inclusively of the abdomen protrusion is more mutually related to the rest items related to make apparel pattern as waist circumference, depth of armscye and so on than what hip circumference is. This result indicated which must be considered hip circumference inclusively of the abdomen protrusion to make apparel patterns for abdominal obese women unlike women of common body types.

• Journal of the Korean Society of Food Science and Nutrition
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• v.42 no.10
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• pp.1592-1599
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• 2013

Despite numerous studies regarding overweight or obese children, only a limited number of studies have investigated the effect of underweight. The purpose of this study is to investigate the determinants of underweight among school-aged children. A total of 493 students (86 underweight and 407 normal weight students) aged 11 to 13 years were included in our study. Socio-demographic characteristics, eating habits, health information, self-perception of weight, weight-control efforts and birth-related information were collected by using survey questionnaires for children and parents. Dietary information was obtained by two 24-hour food records, which were completed by both children and their parents. The prevalence of underweight was significantly higher in girls than boys, and the frequency of medical treatment and flu symptoms were higher in underweight children than normal ones. Overall, girls tended to overestimate their own weight; this misclassification was greater among underweight girls. Birthweight was positively correlated with current weight (P<0.05) and height (P<0.01) in girls, but these correlations were not seen in boys. In conclusion, underweight girls had inappropriate self-perception of weight, and underweight in girls may be related with birthweight and inadequate dietary intakes. Therefore, it is important to build a well-designed framework that integrates efforts of home, school, and community to maintain a healthy weight with balanced diet and exercise throughout the lifetime.