• Clinical and Experimental Pediatrics
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• v.57 no.12
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• pp.520-525
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• 2014

Purpose: Childhood obesity is an increasing public health issue worldwide. We examined dietary patterns among adolescents in a dormitory school, identified obese adolescents and tried to intervene to improve food habits and physical activity. Methods: We conducted an experimental prospective longitudinal study based on 36 obese (body mass index $[BMI]{\geq}95th$ percentile) adolescents (aged 12-18 years) compared with controls (healthy children: normal age-appropriate BMI ($BMI{\leq}85th$ percentile). Six months' intervention included lifestyle-modification counseling (once a week by a clinical dietician), and an exercise regimen twice a week, 60 minutes each time, instructed by a professional pediatric trainer). Both groups underwent baseline measurements at the beginning of the study and 6 months later (arterial stiffness, blood pressure, pulse, weight and height, hemoglobin, creatinine, liver enzymes, highly sensitive C-reactive protein and complete lipid profile). Results: Twenty-one participants completed the study. Low compliance from participants, school staff and parents was observed (participation in planned meetings; 71%-83%). BMI significantly decreased from $32.46{\pm}3.93kg/m^2$ to $30.32{\pm}3.4kg/m^2$ (P=0.002) in the study group. Arterial stiffness was not significantly different between the 2 groups and did not change significantly after 6 months' intervention (P=0.494). No significant changes in CRP and lipid profile were observed after the intervention. Conclusion: Making lifestyle modifications among adolescents in a dormitory school is a complex task. Active intervention indeed ameliorates BMI parameters. However, in order to maximize the beneficial effects, a multidisciplinary well-trained team is needed, with emphasis on integrating parents and the school environment.

• Korean Parent-Child Health Journal
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• v.13 no.1
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• pp.1-7
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• 2010

Purpose: The purpose of this study was to investigate the relationships among TV involvement, body image concern, restrained eating behavior and self-esteem of middle school students in one city. Methods: A cross-sectional survey design was used. A total of 229 boys and 267 girls enrolled in the middle schools completed self report questionnaire in June, 2009. The data was analyzed by using SPSS/WIN 17.0. Results: Of boys, 24.5% was over-weight/obese while 12.7% of girls was over-weight/obese. Compared to boys, girls involved more in TV (p<.001), and showed more body image concern, and restrained eating behavior (p<.001), but had lower self-esteem (p=.020). A significant positive correlation between TV involvement and body image concern was found in both boys and girls. However, only girls showed a negative association between TV involvement and self-esteem, and as well as between restrained eating behavior and self-esteem. As grouped by BMI, both boys and girls showed significantly different scores in restrained eating behavior (p<.001). Conclusion: These results suggest that the increased number of obese young adolescent need a weight management program including control for unhealthy eating behavior. The influence of mass-media on distorted body image for adolescents should be corrected. Also, an intervention for young obese girls to promote their self-esteem needs to be developed.

• Journal of Nutrition and Health
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• v.27 no.1
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• pp.79-89
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• 1994

The purpose of this study was to investigate the relationship between body fat and risk factors of chronic diseases in obese children and eventually to contribute to the prevention and treatment of childhood obesity. Anthropometric parameters such as height, weight, skinfold thickness, circumferences, body fat content were measured in 55 obese subjects of age 5-20. Blood pressure, serum components, daily food intakes were also considered. The average age of the subjects was 12.5$\pm$3.3yrs and the mean obesity index was 64.7$\pm$21.3%. The average percentage of body fat was 35.6$\pm$5.4% and the mean weight of lean body mass was 45.3$\pm$13.9kg. Mean total muscle weight of the subjects was estimated to be 34.11$\pm$1.3kg. The mean systolic and diastolic blood pressures of the obese were 134.8$\pm$15.8mmHg and 69.6$\pm$11.6mgHg respectively. The concentrations fo serum triglyceride, total cholersterol, HDL-cholesterol, LDL-cholesterol were estimated to be 246.0$\pm$136.4mg/dl, 257.0$\pm$54.3mg/dl, 48.2$\pm$13.1mg/dl and 158.9$\pm$53.5mg/이 respectively. The concentrations of serum GOT and GPT were 34.6$\pm$17.1U/L and 24.7$\pm$15.3U/L. The mean content of uric acid is serum was 6.2$\pm$1.9mg/dl. Of these 55 children, 82% has hyperlipidemia, 26% was abnormal liver function and 24% was hyperuricemia. One patient was diabetic. Eighty seven% of them have developed more than one complications.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.21 no.1
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• pp.59-67
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• 2018

Purpose: to compare cut off points corrected for age and gender (COOP) with fixed cut off points (FCOP) for fasting plasma insulin and Homeostatic model assessment-insulin resistance (HOMA-IR) for the diagnosis of IR in obese children and adolescents and their correlation with dyslipidemia. Methods: A multicenter, cross-sectional study including 383 subjects aged 7 to 18 years, evaluating fasting blood glucose, plasma insulin, and lipid profile. Subjects with high insulin levels and/or HOMA-IR were considered as having IR, based on two defining criteria: FCOP or CCOP. The frequency of metabolic abnormalities, the presence of IR, and the presence of dyslipidemia in relation to FCOP or CCOP were analyzed using Fisher and Mann-Whitney exact tests. Results: Using HOMA-IR, IR was diagnosed in 155 (40.5%) and 215 (56.1%) patients and, using fasting insulin, 150 (39.2%) and 221 (57.7%), respectively applying FCOP and CCOP. The use of CCOP resulted in lower insulin and HOMA-IR values than FCOP. Dyslipidemia was not related to FCOP or CCOP. Blood glucose remained within normal limits in all patients with IR. There was no difference in the frequency of IR identified by plasma insulin or HOMA-IR, both for FCOP and CCOP. Conclusion: The CCOP of plasma insulin or of HOMA-IR detected more cases of IR as compared to the FCOP, but were not associated with the frequency of dyslipidemia. As blood glucose has almost no fluctuation in this age group, even in the presence of IR, fasting plasma insulin detected the same cases of IR that would be detected by HOMA-IR.

• The Journal of Korean Society for School & Community Health Education
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• v.15 no.3
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• pp.105-125
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• 2014

Background: The purpose of this study was to evaluate reliability and validity of a 27-item Korean Version of the Impact of Weight on Quality of Life in adolescents ($IWQOL-Kids^{(C)}$: Korean Version). Methods: This instrument was administered to 872 adolescents (mean z-BMI: 2.61, mean $age{\pm}SD$: $13.9{\pm}1.2$, male: 51.9%). Reliability was tested by internal consistency method and item analysis, validity test was performed by index of content validity, exploratory factor analysis, confirmatory factor analysis and concurrent validity. Sensitivity was tested by ANOVA and t-test. Analyses were performed using SPSS and Amos 18.0. Results: By an exploratory factor analysis, 4 factors were extracted; 'Body esteem' consisted of 9 items with 35.9% of variance (social life: 6 items, 10.23%, physical comfort: 6 items, 8.21%, family relations: 6 items, 7.0%). Four factors explained 61.34% of total variance. Internal consistency coefficients ranged from .766 to .929 for scales on 27 items and equal to .920 for total score for both the 26-item and 27-item tools. A confirmatory factor analysis was conducted for the convergent validity and discriminant validity. The standardized factor loadings to test the convergent validity showed more than .5(C.R<1.965) on all paths after deletion of item PC1 (avoid stairs). The average variances extracted were more than .50 and the construct reliabilities were more than .70. The average variances extracted were stronger than the squares of correlation coefficient of inter-latent variables. Conclusions: These results support that the $IWQOL-Kids^{(C)}$: Korean Version with a 26-item is a reliable and valid tool in Korean obese adolescents.

• Journal of the Korea Convergence Society
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• v.10 no.6
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• pp.287-297
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• 2019

The purpose of this study was to examine the relationship of body-shape perception and periodontal diseases in female adolescents based on the sixth 3rd-year(2015) data of the National Health and Nutrition Examination Survey. The subjects in this study were 211 female teenagers who were at the western ages of 12 to 18. As a result of analyzing, it's found that the body-shape perception of the female teens were linked to age, sleep hours, BMI, weight control and toothbrushing frequency, and whether they had periodontal diseases or not was found to be under the influence of age, smoking, sleep hours, stress, BMI and toothbrushing frequency. When the relationship between their body-shape perception and peridontal diseases was analyzed by controlling the confounders, the adolescents who considered their own bodies to be obese suffered from 3.18-fold more periodontal diseases(OR=3.18, 95% CI: 1.21, 8.38) than the teenagers who considered their body shape to be average. In the future, oral health care should be provided in consideration of the mental health of female adolescents to prevent periodontal diseases.

• Clinical and Experimental Pediatrics
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• v.50 no.11
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• pp.1078-1084
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• 2007

Purpose : The prevalence of childhood obesity has doubled over the last 30 years. Obesity-associated sequelae in the vasculature begins in the early stages of life. The purpose of this study was to investigate how pulse wave velocity (PWV) and ankle brachial index (ABI) change with height, weight and body mass index (BMI) in obese adolescents. Methods : Seventy-nine obese adolescents (group 1: $85th{\leq}BMI<95th$ percentile, n=40; group 2 ($BMI{\geq}95th$ percentile, n=39) were included. The control group(group 3) included 99 healthy adolescents. Brachial- ankle (ba) PWV and ABI were estimated with blood pressure from four extremities. Heart rate (HR), and pre-ejection period/ejection time (PEP/ET) were also estimated. BMI was calculated from individual height and weight. Linear regression analysis was performed to evaluate the correlations between BMI and PWV. Results : Blood pressure and baPWV were significantly higher in group 2, compared to either group 1 or group 3. However, there was no significant difference in ABI, HR and PEP/ET between the groups. PWV showed linear correlation with both BMI and body weight. Conclusion : Obesity was associated with higher arterial stiffness in adolescents, which was demonstrated by an increase in PWV. There was no significant correlation between obesity and ABI.

• Clinical and Experimental Pediatrics
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• v.51 no.9
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• pp.950-955
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• 2008

Purpose : The objective of this study was to provide current estimates of the prevalence and examine trends of overweight and obesity in children and adolescents. Methods : Height and weight measurements from 183,159 (112,974 in 1997, 70,185 in 2005) children and adolescents aged 2 to 18 years were obtained via the 1997 and 2005 National Growth Survey. Obesity among children and adolescents was defined as being at or above the 95th percentile of the gender-specific body mass index (BMI) for age in the 2007 Korean National Growth Charts or a BMI of 25 or higher; overweight was defined as being at or above the 85th percentile to less than the 95th percentile BMI. Results : In 2005, 9.7% (11.3% for boys, 8.0% for girls) of South Korean children and adolescents were obese; 19.0% (19.7% for boys, 18.2% for girls) were overweight or obese. The overall prevalence of obesity increased from 5.8% in 1997 to 9.7% in 2005 (from 6.1% in 1997 to 11.3% in 2005 for boys and from 5.5% in 1997 to 8.0% in 2005 for girls); the increasing trend was most evident in boys, especially those aged 13-18 years. Conclusion : The prevalence of obesity among children and adolescents increased significantly during the eight-year period from 1997 to 2005. This study suggests that we need to make a priority of developing strategies to control obesity in children and adolescents; the potential health effects of increases in obesity are of considerable public health importance.

• Journal of Korean Medicine for Obesity Research
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• v.24 no.1
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• pp.102-110
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• 2024

This study reports the clinical effects of Korean medicine treatments, herbal medicine, modified fasting, and space spinal conduction exercise and manipulation (SSCEM) on adolescent obesity patient. A 16-year-old male with a body mass index (BMI) 35.5 kg/m² was diagnosed with class III obesity. We prescribed herbal medicine and modified fasting alternately three times over a period of five months. Additionally, Korean medicine treatments and SSCEM were performed during the treatment period. After treatment, there was a decrease in body weight by 19.86%, from 115.8 kg to 92.8 kg, BMI from 35.5 kg/m² to 28.6 kg/m², and body fat mass from 38.1 kg to 17.0 kg. The results of this study showed that Korean medicine treatments, herbal medicine, modified fasting, and SSCEM could be useful in influencing changes in body composition among obese adolescents.

• Clinical and Experimental Pediatrics
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• v.52 no.12
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• pp.1321-1326
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• 2009

Prevalence of obesity in Korean children and adolescents has dramatically increased since the last 10-20 years. It is important to initiate prevention efforts early in childhood because prevalence of obesity in adolescence is the strongest predictor of its prevalence in adulthood. Intrauterine life, infancy, and preschool years may comprise the critical periods that are essential for the long-term regulation of energy balance therefore, obesity-prevention strategies should be initiated in utero and continued throughout childhood and adolescence. Families with high-risk children should be provided early education about maintaining normal weight. Encouraging physical activity and, especially, avoiding inactivity, are key challenges in the prevention of future obesity. Schools should be primarily involved in educating parents to discourage their children from excessively watching TV or playing computer games and eating unhealthy snacks and food. The involvement of medical practitioners is also important, especially, in the case of obese parents, obesity prevention strategies should be promoted from the first visit of pregnant women to the physicians. Health professionals can also be involved in obesity prevention because they are ideally equipped to identify young children at risk of obesity. Community and nation-wide efforts to increase awareness and promote environments that encourage physical activity and healthy nutrition are required.