• Journal of the Korean Society of Food Culture
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• 제20권3호
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• pp.323-330
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• 2005

The purpose of this study was to evaluate the effects of the weight control programme through nutrition education on anthropometry, body composition, dietary behavior, and adipocyte-drived protein in obese elementary school children. The subjects were 17 obese children of OI over 120% from the fourth to sixth grades of elementary school. The subjects were given nutrition education for weight control along with physical and behavioral advices once a week, and the program was 12 weeks long. On the completion of 12 week weight control program, significant decreases in waist and hip circumferences were resulted, however, no changes in body mass index (BMI) and obesity index (OI) were found. Hemoglobin was significantly decreased and HDL-cholesterol was significantly increased. Energy intake was decreased significantly along with intakes of Ca, Fe, folic acid, vitamin B1, vitamin B6, and vitamin C. Meal distribution of energy was changed; % energy from snack significantly from 11.9% to 3.3%. Resistin, leptin, and adiponectin level were not changed; Resistin had a negative correlation with vitamin C intake. Leptin had positive correlations with weight and BMI. Adiponectin was negatively correlated with weight and BMI. In conclusion, nutrition education program for weight control for 12 weeks is effective in changing the dietary behavior, serum profile, and anthropometry in obese elementary children, however, no effect was seen in adipocytokine levels.

• Journal of the East Asian Society of Dietary Life
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• 제18권6호
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• pp.927-938
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• 2008

The principal objective of this study was to identify the dietary and physical activity patterns of obese preschoolers, and to determine the association between child obesity and mother's' dietary habits or thoughts regarding dieting/weight. This is a cross-sectional, community based study, and 305 preschoolers who attended kindergarten in Seoul and its surrounding area were selected. The measurements of dietary habits both in preschoolers and their mothers, physical activities of preschoolers, and daily servings of foods were based on parents' self report. Weight and height were used to calculate WLI (weight length index) in preschoolers and BMI (body mass index) in their mothers. The subjects were divided into two groups 245 normal weight preschoolers (including underweight 15.1% and normal weight 65.6%) and 59 obese subjects (overweight 14.4% and obese 4.9%). With regard to dietary habits in normal and obese preschoolers, we noted significant differences in 5 questions, such as mostly eating heavy meals, one serving size, eating speed, overeating, and obsession about eating. No differences in daily servings of major foods and snacks, except fruits and potatoes, were noted between normal and obese children. Among 13 questions regarding mothers' dietary habits, only 3 questions-"preferred to instant foods", "finish meals within 15 minutes", "use nutritional information for selecting foods" were significantly different between normal and obese subjects. The total scores of mothers' dietary habits was significantly and negatively correlated with number of mother's dieting experiences or mother's BMI, but was not correlated with preschooler's obesity.

• Journal of the Korean Home Economics Association
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• 제42권4호
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• pp.143-153
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• 2004

The purpose of this study was to examine sex and grade differences in children's body shape, body image perception and diet behavior and to identify the effect of children's body shape and body image perception on their eating behavior. Data were collected from 345 3rd and 6th graders by questionnaire and analyzed by t-test, ANOVA, and Scheff. Girls' body image perception was more negative than boys' and 6th graders' was more negative than 3rd graders'. Self-perceived obese children had more negative body image and had attempted to go on a diet more often than children who thought themselves normal or thin. The more children perceived their body image negatively, the more they attempted to go on a diet and perceived food and eating negatively.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제21권2호
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• pp.127-133
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• 2018

Purpose: For 3 consecutive years from 2012-2014, we analyzed the causative factors for why the Jeju Island had the highest obesity prevalences of school children among the 15 provinces in Korea. Methods: From our analysis of 28,026 elementary school children with obesity or normal weight in the 15 provinces, we analyzed 12 factors related to eating habits, exercise habits, lifestyle, and mental health. The differences between the obese and normal weight children were researched. Finally, Jeju was compared with Seoul, which has the lowest obesity prevalence in school age children. Statistical analysis was performed using the chi square test of PASW Statistics ver. 18.0. Results: Compared to the normal weight group, the obese group had significantly higher rates of consuming soft drinks (p<0.001), fast food intake (p=0.019), skipping breakfast (p<0.001), insufficient sleep (p<0.001), bullying experiences (p=0.001) and runaway impulses (p=0.012). Compared to Seoul, Jeju Island had significantly higher rates of Ramen intake (3.4% vs. 5.4%, p=0.021) and meat intake (46.0% vs. 52.9%, p=0.003). On the other hand, Jeju Island was significantly lower than was Seoul in their fruit intake (83.4% vs. 67.1%, p<0.001), vegetable intake (71.4% vs. 64.2%, p=0.001), and intense physical activity (63.4% vs. 47.7%, p<0.001). Meanwhile, insufficient sleep (15.4% vs. 9.6%, p<0.001) and runaway impulses (5.6% vs. 3.3%, p=0.027) in children were significantly lower in Jeju Island than in Seoul. Conclusion: The results of the obesity factor analysis of elementary school students in Jeju Island can be used as useful educational material for lowering the obesity prevalence in Jeju community.

• The Journal of Korean Society for School & Community Health Education
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• 제11권2호
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• pp.89-102
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• 2010

Objectives: This study was conducted to compare health behavior between obese children and those with standard body weight, analyzing the correlation in their health behavior, and further making it useful data for the development of programs for a better education on health. Methods: To achieve the goal of this survey as mentioned, we have carried out a research targeting on a total of 636 elementary school students, 505 children of standard body weight and 131 children of obesity, all of whom belong to elementary school students in Seoul, the capital city of Korea. And we have itemized the research into 'eating habits', 'physical activity, 'dieting experience in the past', and 'stress and release management' in order to spot the specific health behavior leading to obesity. Results: 1. Factors for diseases mainly from obesity were statistically significantly differentdepending on degree of the subjects' self-respect and a history of obesity in their families, father($x^2$=7.172, p=.007), mother($x^2$=9.011, p=.003), and siblings($x^2$=12.431, p=.000). 2. Regarding the subjects' eating habits, some items were statistically significantly different: taking algae($x^2$=3.324, p=.043), eating breakfast($x^2$=6.070, p=.010), and eating fast($x^2$=8.551, p=.002). 3. There were some statistically significant differences in the subjects' dieting experience. For the latest 1 year, they made some attempts for that: fasting($x^2$=4.229, p=.040), reduction of eating($x^2$=25.377, p=.000), eating one meal a day($x^2$=5.582, p=.018) 4. OR(Odd Ratio)of Percieued obesity was 0.15 in the subjects' under weight than normal weight. And there was OR(Odd Ratio) 11.72 in the subjects' over weight. We can witness obese children think that they are over weight(p=.000).

• Journal of the Korean Dietetic Association
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• 제19권1호
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• pp.34-45
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• 2013

This study was conducted to obtain data and offer advice regarding dietary intake at kindergarten and to recommend dietary habits to prevent childhood obesity. The study was conducted in 85 children aged 4 to 5 years. Body weight and height, dietary intakes of lunch served at Kindergarten and questionnaires for dietary behaviors in Kyeongnam area were studied. All subjects were classified by their weight-length index (WLI). According to the standard WLI values, 41.2% of the children were within the normal value ($90{\leq}$WLI<110), 23.5% of the children were overweight ($110{\leq}$WLI<120), and 35.3% of the children were obese ($WLI{\geq}120$). The mean energy intake at lunch for kindergarteners was $287.1{\pm}13.4$ kcal in the normal group, $307.6{\pm}10.2$ kcal in the overweight group and $323.7{\pm}8.6$ kcal in the obese group. The percent energy of estimated energy requirement (EER) was 21.8%. The intake of protein, iron, zinc, vitamin A, and pyridoxine were significantly different by WLI (P<0.05). A comparison of nutrients in the lunch menu provided with those of 1/3 recommended intake (RI) showed that preschoolers took in fewer calories, calcium, and vitamin $B_2$, and that their deficiency rates were high (81.2%, 76.5% and 70.6% of recommended levels, respectively). There was a significant difference in the preference of fruits and milk and dairy products by WLI. Therefore, a nutritional education program and new guidance in the proper nutrition management for kindergarteners should be developed to enhance nutritional status during childhood.

• Nutrition Research and Practice
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• 제2권4호
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• pp.308-316
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• 2008

The purpose of this study was to investigate the nutrition and diet related knowledge, attitude, and behavior of elementary school children in Seoul. The subjects included were 439 (male 236, female 203) elementary school children in the 4th to the 6th grades, The statistical analysis was conducted using SPSS 12.0 program. The average obesity index (OI) was 104.98 and 99.82 for male and female subjects, respectively. The average percentage of underweight, normal, overweight and obese of subjects was 33.7%, 32.8%, 12.3%, and 19.4%, respectively. The percentage of the underweight group of female subjects was higher than that of the male subjects. The percentage of the obese group of male subjects was higher than that of the female subjects. The average score of nutrition knowledge, nutrition attitude and dietary behavior was 6.8, 7.44, and 7.34, respectively. Dietary behavior of male subjects was positively correlated with parents' education levels, monthly household income and nutrition attitude. Dietary behavior of female subjects was positively correlated with monthly household income, nutrition knowledge and nutrition attitude. Dietary behavior of female subjects was positively correlated with obesity index (OI). Proper nutrition education and intervention are required for the improvement of elementary school children's nutrition knowledge, nutrition attitudes and dietary behaviors.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제6권2호
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• pp.174-182
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• 2003

Purpose: Non-alcoholic fatty liver disease (NAFLD) has been recognized as an important childhood liver disease, especially where the prevalence of childhood obesity is increasing. The purpose of this study is to clarify the usefulness of elevated serum aminotransferase activities and their ratio for predicting the presence of fatty liver and its severity in obese children. Methods: Forty-four children (M/F 29/15, age 4 to 16 years) with obesity (weight excess>20%) were analyzed retrospectively with medical records based on degree of obesity, bioelectrical impedence, serum aminotransferase activities, lipid profiles and ultrasonography. Results: 1) Ultrasonography was carried out in 34 cases. Elevated serum ALT was found in 89.7% (26/29) of the patients diagnosed as fatty liver by ultrasonography and decreased AST/ALT ratio (<1) was found in 96.6% (28/29). There was a strong correlation between elevated serum ALT (>45 IU/L) or decreased AST/ALT ratio (<1) and the fatty liver in obese children (p<0.05). 2) There was no significant correlation between the serum ALT or AST/ALT ratio and the degree of fatty liver (p>0.05). 3) There was a significant correlation between total cholesterol, triglyceride and fatty liver (p<0.05). Conclusion: Serum ALT activity and AST/ALT ratio were useful to predict the presence of fatty liver diagnosed by ultrasonography in obese children, whereas they were not useful to predict the degree of fatty liver. Therefore, to prevent fatty liver progressing to advanced liver disease, it is necessary to manage and monitor the obese children continuously, especially those who have predicting factors of fatty liver.

• Clinical and Experimental Pediatrics
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• 제45권5호
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• pp.588-595
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• 2002

Purpose : The incidence of obesity has increased in Korea recently. Obesity leads to higher risks of hypertension, hyperlipidemia and insulin resistance. It also leads to risks of respiratory complications. This study was performed to see the effects of obesity on children's pulmonary functions and on developed bronchospasm after exercise loading according to their obesity degrees. Methods : 257 obese children and 150 non-obese children were enrolled. Obese children were divided into 3 groups by the obesity degrees. Pre- and post-exercise loading $FEV_1$(forced expiratory volume at one second), FVC(forced vital capacity) and PEFR(peak expiratory flow rate) were checked in all subjects. The percent predicted values of each parameter was compared according to obesity degrees and the differences between pre-exercise and post-exercise values. Results : The percent predicted value of $FEV_1$, FVC decreased only in the severe obesity group compared with those in the control group. However percent predicted PEFR declined according to obesity degrees. The percent predicted value of $FEV_1$, FVC and PEFR after exercise loading were much lower than those before exercise loading in all groups. Conclusion : As the degree of obesity was higher, the percent predicted value of pulmonary function was lower. And after exercise loading, as the degree of obesity was higher, the reduction of percent predicted value of pulmonary function was larger. Therefore the pulmonary function in obese children must be observed carefully. Further studies on the effects of pulmonary functions in obese children are necessary.

• Research in Community and Public Health Nursing
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• 제19권4호
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• pp.587-599
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• 2008

Purpose: The purpose of this study is to compare the differences between obese and non-obese students in sedentary leisure-time activities. Methods: The survey was performed with 725 students from 3 different middle schools in Kyeonggi-do. In order to measure the degree of obesity. used are BMI and "2007 Korea Children and Adolescents' Average Scale". With regard to the leisure activities. YRBS and "youth Behavior Risk Factor Surveillance" were referred. Results: The rate of boys' overweight was 18.0% and that of girls was 11.8%. Students watching TV 3hours+/day were 16.6% for boys and 30.6% for girls during weekday. Respective values for weekend were 56.8% and 71.4%. Students using computer 3hours+/day were both 14.5% for boys and girls during weekday. and 53.7% for boys and 36.7% for girls during weekend. 14.9% of boys and 21.2% of girls didn't participate in vigorous physical activities and 5.9% for boys and 11.2% for girls didn't participate in moderate physical activities. The differences between obese and non-obese students in sedentary activities were not significant. However. the difference in leisure-time activity was significant. Conclusion: The programs for prevention and management of adolescents' obesity have to be focused on reducing their sedentary activities and improving physical activities.