• Journal of Korean Home Economics Education Association
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• v.21 no.3
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• pp.111-122
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• 2009

This study assessed the levels of knowledge and behavior about food safety, the factors influencing them and the causal relationship between them. The data were collected from 297 high school students in Gyeongbuk region by the self-administered questionnaire. The questionnaire was composed of closed-end questions regarding each respondent's characteristics such as sex and grade, recognition on food safety, concern about hazardous elements towards foods and knowledge and behavior about food safety. The results of this study were as follows. Both levels of knowledge and behavior about food safety were not particularly high. The factors affecting the level of knowledge about food safety were mother's age and concern about hazardous elements towards foods. Grade, father's educational level, concern about hazardous elements towards foods, and the level of knowledge about food safety influenced the level of behavior about food safety. The results of the path analysis showed that grade and father's educational level directly affected the level of behavior about food safety. In addition, concern about hazardous elements towards foods had direct and indirect effect on the level of behavior about food safety On the other hand, the level of knowledge about food safety had an direct influence on the level of behavior about food safety.

• Journal of the Korean Society of Food Culture
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• v.23 no.4
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• pp.529-537
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• 2008

In this study, the relationships among obesity, food behavior, and personality traits were studied in male and female elementary school children. The obesity rates were calculated via the measured heights and weights of the subjects. Food behavior was surveyed via a questionnaire. Personality traits were evaluated using an authorized personality test. The obesity rates in the child subjects in this study were 34.1%in the male children, and 28.7% in the female children, and the rates of underweight were 18.2% in the males and 28.7% in the females. The percentage of obese children was slightly higher in the male population than in the female population. With regard to food behavior, the females evidenced significantly higher points than the males, particularly on the items designated 'slow eating' and 'stop eating upon satiety'. Among the personality traits assessed herein, which included emotional stability, general activity, sociability, masculinity, responsibility, reflectiveness, and superiority, the females evidenced significantly higher sociability scores than the males. The personality traits did not appear to be significantly associated with the obesity rate. However, the obese children scored lowest on all personality traits among the three groups. In terms of the relationship between food behavior and personality traits, children with high stability, sociability, responsibility, and superiority also had significantly higher food behavior scores. These results imply that the maintenance of good food behavior may enhance stability, sociability, responsibility, and superiority in children.

• Korean Journal of Community Nutrition
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• v.16 no.3
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• pp.307-314
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• 2011

The purpose of this study is finding the easy way of 4 categories activity level confirmation for estimated energy requirement calculation. Total of 386, 5th and 6th grade primary school students participated. The time spent on 7 kinds of activity were collected for 1 day by the internet program developed. Judged by the activity coefficient, sedentary were 6.7% and 5.1%, low active 33.2% and 40.4%, active 43.8%, and45.5%, and very active 16.3% and 9.0% for boy and girl, respectively. The highest and significant correlation coefficient between activity coefficient and time spent on activities shown were 0.339 in commute activity for boys, and 0.466 in leisure for girls. The sensitivity of the sedentary conformation by commute hour for boys was 0.79, and that of very active was 0.56. The sensitivity of the sedentary conformation by leisure hour for girls was 0.67, and that of very active was 0.63. The sensitivity of low active and active by 7 different types of activity was quite low, 0.04~0.37. The exact agreement of activity level conformed by easy way developed was 30.8% and 33.7%, for boys and girls, respectively. More accurate way to identify 4 categories activity level needs to be developed, especially sensitive to conformation of low active and active levels.

• Journal of the Korean Dietetic Association
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• v.1 no.1
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• pp.2-9
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• 1995

The present study was designed to observe whether nutritional education on children or mothers of the children who avoid to eat vegetables can improve the preferences for the vegetables of the subjects. The subjects were 45 children who are fourth to sixth grade of primary school in Bibong. They were assigned to one of three groups which are Control, Children Education and Mothers Education groups. Control group was not given any special education, while experimental groups were given nutritional education for 4 weeks. The effects of education was evaluated in the aspects of preference changes for vegetables, nutritional knowledge, attitude and food behavior of the subjects The results are summarized as follows. 1. Preferences to cucumber, lettuce, chinese cabbage and raddish were high in three groups while greenonion, onion, lotus roots and red pepper didn't suit for their taste. 2. Significantly increased scores for the preference to red pepper, pumpkin, Dorajee(root of chinese bell-flower), braken, mushroom was shown only in the children who had nutritional education while the children in the group of Mothers Education improved their preference only cabbage and lotus roots. 3. Nutritional knowledge of the children in Children Education group has improved significantly(p<0.05). While there was no significant difference between control and Mothers Education group. 4. When scores for food habit of mother and children were estimated, there was no significant difference among three groups. However, score of food habit in children was higher than that of mothers. 5. Food habit and nutrition knowledge of mother were not well corelated with dietary attitude and behavior of their children. These results indicate that the program of nutrition education in the present study can improve the food choice of children for vegetable and correct one-sided food habit. The program applied in this study would serve a kind of model for the dietetic teachers to guide the children who mainly dislikes vegetables.

• Korean Journal of Community Nutrition
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• v.18 no.5
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• pp.525-538
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• 2013

The purpose of this study was to provide information on obesity assessment for Koreans. Among total of 1012 research papers enlisted in the Korean J Community Nutrition form 1996 to 2011, 248 articles were examined in which subjects were divided into more than 2 groups by obesity rate. About the method of anthropometric data collection, more than half of the research papers examined 52.5% and 28.7% of studies utilized the directly measured data and self-described data, respectively. About the utilization of obesity assessment methods, indirect methods of weight-height index (BMI, BMI percentile, and R$\ddot{o}$hrer index) and PIBW (WLR, Broca index, and KDA) were 62.4% and 23.2%, respectably, and the direct method of percent body fat assessment was only 9.3%. The most frequently utilized methods were WLR in under primary and primary school children, and BMI in the middle and high school students and in adults. For primary school students, WLR was the most frequently utilized method up to 2007, but it changed to BMI percentile afterward. Broca Index was no longer utilized since 2008. There were no articles utilizing BMI percentile and R$\ddot{o}$hrer index for obesity assessment in adults. Criteria for obesity assessment were not consistent among research papers: for example, % body fat, 19~40%; BMI, 20~30; BMI percentile, 85th or 95th. In the case of PIBW, 120% of ideal weight was the most frequently utilized criterion for obesity. Based on these findings, we suggest that proper methods and criteria of obesity assessment for each age group should be determined and proclaimed.

• The Research Journal of the Costume Culture
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• v.14 no.6
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• pp.971-986
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• 2006

As baby boomer generations become older, these "New-age elderly" have emerged as an important consumer segment for apparel products. These young-minded elderly have positive attitudes to technology and enjoy many of high technology tool in their everyday life, which signals a huge market potential for internet apparel retailing targeting these elderly consumers. Internet apparel businesses are required to provide various consumer information to its consumers to facilitate the decision making process. For elderly consumers, who might have different shopping behaviors from the younger consumer segments, different kinds of information with higher quality would be required. As a preliminary step to develop internet consumer information model for elderly consumers, this study seeks to investigate the current practice of information offerings of internet apparel businesses for elderly consumers. Ten internet sites carrying apparel products for elderly consumers were selected and analyzed their offerings of consumer information by five researchers. This study found that internet apparel businesses targeting elderly consumers were still small-sized and lack of sophisticated technology to support these elderly consumers. Most web sites provided basic product information and service information but not fashion and trend related information. Managerial implications were discussed.

• Journal of the Korean Society of Clothing and Textiles
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• v.29 no.11
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• pp.1454-1464
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• 2005

The study was based on a three-stage, non-repetitive factorial experiment in which chemical-rotted kenaf fibers were treated separately with hydrogen peroxide concentrations of $0.5\%,\;1\%\;and\;2\%$, with pH solutions of 7, 9 and 11, and treatment times of 30, 60 and 90 minutes. Under optimal conditions, the study was conducted to determine the strength and elongation of kenaf fibers by the addition of chelators, penetrants and surfactants. The hydrogen peroxide concentration, solution pH and treatment time directly affected the strength of kenaf fibers. The hydrogen peroxide concentration, solution pH affected the elongation of kenaf fibers. It was found, however, that the interaction between pH and treatment time, concentration and treatment time, concentration and treatment time and pH affected the strength of kenaf fibers. Also, It was found that the interaction between pH and concentration, concentration and treatment time, concentration and treatment time and pH affected the elongation of kenaf fibers. Under the hydrogen peroxide conditions of $2\%$ concentration, pH 11 and a treatment time of 60 minutes, there were no effects on the strength and elongation of kenaf fibers with the addition of chelator SP, CA.

• Human Ecology Research
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• v.57 no.2
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• pp.243-255
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• 2019

This study examines the effect of satisfaction with adolescent extracurricular activities on social withdrawal with a focus on the mediating effect of self-esteem and sense of community. We used data from the 3rd wave (2012) of the Korean Children and Youth Panel Survey (KCYPS) collected by the National Youth Policy Institute for path analysis. Participants were 1,139 first year middle school students who participated in adolescent extracurricular activities. First, the degree of satisfaction with the adolescent extracurricular activities had an indirect effect on social withdrawal via self-esteem. Second, satisfaction with the adolescent extracurricular activities had an indirect effect on social withdrawal via a sense of community. Lastly, satisfaction with adolescent extracurricular activities had an indirect effect on social withdrawal via self-esteem and a sense of community. The research findings indicate that the level of social withdrawal is less when adolescents are satisfied with adolescent extracurricular activities and have a high level of self-esteem and sense of community. The results demonstrate that a satisfactory level of adolescent extracurricular activity would help adolescents decrease their social withdrawal by increasing the level of self-esteem and sense of community.

• Journal of Nutrition and Health
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• v.38 no.10
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• pp.864-872
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• 2005

Various types of functional foods for health (FFH) are popularly used among adolescents. We surveyed 858 students, $15.0 \pm$ 1.6 (14-18) years of age, attending general junior or senior high schools in Korea for FFH use and significant variables for their FFH use including demographic characteristics, food consumption frequency and nutritional beliefs. The use prevalence of FFH was $47.8\%$, and among all types of FFH, nutritional supplements were taken most frequently, followed by red ginseng products > enzyme containing products > plant extract-fermented products. FFH use was higher in older aged-group, subjects lived in small or middle city, and those from families with a high socioeconomic status in comparison to each corresponding group. Health concern on offsprings by parents and usage ratio of FFH by family was higher in users than in nonusers of FFH. Total score of dietary assessment was higher in users than in nonusers of FFH, and users had a more positive view concerning the potential health benefit of FFH than did nonusers. Most users of FFH took FFH when they were healthy ($50.7\%$) , and they did not feel special effects through the FFH use ($57.1\%$) . Most users of FFH got the information on FFH through family and relatives ($61.5\%$) , and most of them purchased FFH at pharmacy or oriental medicine clinics ($55.1\%$) . FFH users preferred vitamin C-and Ca-supplements most among the vitamin mineral supplements belonged to FFH. Given the widespread use of FFH by adolescents, the reasonable use of these products for the contribution to their overall health and well-being is a subject that is emphasized in nutrition education for them. (Korean J Nutrition 38(10) : 864$\sim$872,2005)

• International Journal of Human Ecology
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• v.12 no.2
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• pp.39-50
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• 2011

This study surveys the state of 'children's snacks' sold within the Green Food Zone and that of High Calorie Foods with Low Nutrition Value (HCFLNV). The main purposes are the analyses of foods in accordance to KFDA Program for HCFLNV and an analysis of differences in HCFLNV that are dependent on relevant factors such as food types, school types, origins, the scale of manufacturing company, area and price. Based on the analyses, educational and political implications have been sought that will form nutritious dietary habits, contribute to the prevention of obesity, and improve health in child consumers. The methodologies of this study are literature studies and surveys. The results of this study can be summarized as following. First, the number of children's snacks is 517 items of total 645 gathered within 150 Green Food Zones. Candies are the most popular item, next are cookies, chocolates, and breads. Second, in the real state survey there are 186 HCFLNV (36.0%) among children's snacks sold within Green Food Zone. Based on the survey results, the marking of HCFLNV on the package of children's snacks and the extension of the ban of HCFLNV sales to all stores within the Green Food Zone are strongly suggested. This provides preliminary data related to children's snacks and food safety. With enforcement of the Special Act on the Safety Management of Children's Dietary Life, the rate of HCFLNV has decreased and the child snack product environment in stores has improved. However, it is necessary to supervise low-priced snacks and promote an awareness of HCFLNV along with the child consumer education of food safety is needed.