• Journal of Elementary Mathematics Education in Korea
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• v.20 no.4
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• pp.737-760
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• 2016

This study analyzed the 2009 revised curriculum 6th grade math geometric domain and developed virtual operation tool contents based RME theory. These materials were examine to find out how to effect on the spatial sense and mathematical attitudes by applying it to teach the 6th grade students. The results were as follows. First, it is more effective for improving spatial sense to study mathematics based RME theory with virtual operation tool contents than normal one. This means that mathematics study based RME theory with virtual operation contents overcomes the limitations of flat learning environment. And it is great educational and effective method for students to improve their spatial sense. Second, it is more effective for improving mathematical attitudes to study mathematics based RME theory with virtual operation tool contents than normal one. This means that Mathematics study based RME theory with virtual operation contents makes student more participate learning actively. It helps the students who have passive learning habits to have self-directed learning habits, ability to cooperation and communicate. The results of this study suggest that mathematics study based RME theory is very helpful for student to improve their spatial sense and have positive effect on self-concept in mathematics, attitudes toward mathematics and improving study habits in mathematical attitudes.

• Culinary science and hospitality research
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• v.18 no.5
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• pp.190-204
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• 2012

This study was conducted to investigate the relationships between dietary habits and food intake and impulsiveness and aggression in the 6th grade students(boys 53, girls 37, N=100) of the elementary school in Chuncheon area. The main results are as follows. According to the survey on dietary habits and foods intake, the score of "I eat a balanced diet that consists of boiled rice, soup, and more than two side dishes" was the highest as $4.31{\pm}0.96$ while the score of "I watch TV or read a book during having a meal." was the lowest as $3.16{\pm}1.36$. The girls had better score than boys for "I eat slowly." while the boys had better score than girls for "I exercise every day."(p<0.01). Total scores of dietary habits were not significantly different between the sexes. For having fruits, girls($4.28{\pm}0.77$) ate them more frequently than boys did($3.81{\pm}1.02$) but for having soda drinks, boys($2.85{\pm}1.10$) drank more frequently than girls did($2.32{\pm}1.11$) (p<0.05). The total scores of impulsiveness were not significantly different between the sexes(boys $2.60{\pm}0.93$ vs. girls $2.57{\pm}0.99$), but those of aggression were significantly different(p<0.05) between the boys($3.01{\pm}0.79$) and the girls($2.63{\pm}0.78$). The score of total dietary habits had a negative relationship with that of aggression(r=-0279, p<0.01) but not with that of impulsiveness. The frequency of 'having milk and milk products' and all processed foods had positive relationships with the scores of impulsiveness and aggression(p<0.01). Especially, the total score of having processed foods had highly positive relationships with impulsiveness(r=0.656, p<0.01) and aggression(r=0.614, p<0.01). In conclusion, it is very important to have a good dietary habits and to reduce the frequency of having processed foods for children's good personality.

• Journal of Nutrition and Health
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• v.45 no.4
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• pp.336-346
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• 2012

This study was carried out to obtain information related to life styles, nutrition knowledge, and dietary habits according to gender and weight status of college students in Ulsan. The subjects were 324 college students (144 males, 180 females), and they were divided into three groups based on BMI. The average BMI was $21.0kg/m^2$, and the BMI of underweight, normal, and overweight students were 15.4%, 63.0%, and 21.6%, respectively. Among the male students, 0.1% and 34.0%, and among the female subjects, 27.2% and 11.7%, were included in the underweight and overweight groups, respectively. For dietary habits, the rate of skipping breakfast (34.9%) was considerably higher than those skipping lunch and dinner. Overall, the nutrition knowledge score, which was assessed by 15 questions, was somewhat low (44.9/100), yet, it was higher in females than in male students. There were significant differences among gender and weight status in several items of dietary habits such as the speed of eating meals, consuming breakfast on a regular basis, and sleeping hours. 40% of the subjects had appropriate knowledge about high calorie foods with low nutritional value. In the blood analysis of the subjects, males had higher hemoglobin levels than females. Further, more females were included in the risk group of Hb, total cholesterol, and LDL. These results suggest that in order to develop nutrition education programs for college students, differences between gender and weight status, dietary habits, and nutrition knowledge level should be considered.

• Korean Journal of Childcare and Education
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• v.6 no.1
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• pp.157-176
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• 2010

The purpose of this study was to estimate the effect of "The unsafe food program" designed for improving children's biased eating habits coming from defenceless exposure to the instant food, fast food and adulterated food with MSG and artificial additives with analyzing the current condition of children's biased eating habits and preference for the unsafe foods. This program was performed for 5 year old children who was attending the kindergarten run by the author every day for two months. "The unsafe food program" consisted of the surveys on the parents' attitude towards food and health and children's eating habits, and of programs that was designed to attract children's attention to their daily food intake and to provide physical fitness, information about differences between wholesome food and junk food, and junk food's bad impacts on human body for children. In order to see the changes of children's body through this program, two physical examinations was preformed: SH pharmaceutical company's hair test to measure the accumulation level of toxic metal in children's hair and children's nutrition level before starting the program, and Ilsan Health Center's 'INBODY' test to analyze children's body composition such as body weight, skeletal muscle mass, body fat mass, BMI, body fat percentage and so on before and after the program. The results from this program follow as below. First, the unsafe foods were excluded from children's diet after parents came to recognize the negative effects of the unsafe foods. Second, children became highly interested in their daily diet through the course of gathering information by themselves and discussions together while testing and analyzing foods, and children demonstrated more self-restraint on fast food and instant food. Third, children's body constitution turned out to be improved by physical fitness in addition to this program. Fourth, children formed a good habit of eating well-balanced diet consisting of vegetables, staple food and fruits through this program designed to improve children's biased eating habits. From the results of this study it was confirmed that "the unsafe food project" had effects on improving children's eating habits.

• Journal of radiological science and technology
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• v.40 no.4
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• pp.581-587
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• 2017

This study was based on the data of total mineral content of about 99% at the age of 16-26 years, we aimed at female university students who are important for bone formation in their early 20s. The purpose of this study was to investigate factors of eating habits affecting their bone density and to provide data to prevent osteoporosis which might occur in the future. It was conducted on 100 female university students in their 20s, the bone mineral density according to BMI was measured by DEAX, and the analysis of 10 eating habits items and the results of BMD measurement on their own results in Excel 2010. As a result, the height was $161.08{\pm}4.70cm$, the weight was $52.43{\pm}6.43kg$, and the BMI was $20.22{\pm}2.48$, which correlated with BMD (p<0.05). According to the BMI classification, 20 had low weight and 80 had normal weight, and BMD was $0.20{\pm}0.41$ at normal weight. In the same sex, the mean T-score of the young adult group was $-0.04{\pm}0.99$ compared with the BMD of the young adult group, and the mean Z-score of the same age group was $0.02{\pm}0.93$ (p<0.001). Eating habits affecting bone mineral density were significantly affected by 3 meals per day, 1-3 cups of coffee per day and p<0.05 for Low salt formula intake. 6-9 dairy product intake was also p<0.05 but not significant. Therefore, it is considered that when 20s female students become middle-aged woman, they should have proper eating habits so that osteogenesis can be improved at young age in order to prevent bone disease.

• Journal of Nutrition and Health
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• v.46 no.1
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• pp.86-97
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• 2013

This study investigated the eating habits of elementary school children and their perceptions related to traditional Korean foods, based on the health belief model. The subjects were fifth grade elementary school children (274 boys and 274 girls) in eight Korean cities. The results were as follows: The children ate almost three meals per day and were grateful for their meals. However, they irregularly consumed meals and snacks. They tended to eat heartily and did not eat foods that they had not yet eaten. Their meals were based on rice and they have eaten kimchi and vegetables at almost every meal. However, they had undesirable habits in eating other foods, such as fruits, fish, soybeans, and sweet foods. They did not sensitively or seriously perceive their eating habits in relation to their health. They perceived that it was very good for their nutrition, health, and tastes to eat traditional Korean foods, and they had pride in traditional Korean foods and eating style. Although they expressed some difficulty regarding availability and preparation of traditional Korean foods, they hardly felt difficulty in eating them. They had high dietary self-efficacy with regard to eating these foods, except for two items of self-regulation. Their eating habits showed positive correlation with dietary self-efficacy, perceived susceptibility, and perceived benefit. In conclusion, eating habits of elementary school children in relation to traditional Korean foods are not desirable, but not serious. They did not sensitively or seriously perceive their eating habits in relation to their health. However, they perceived that it was very good for their nutrition and health to eat traditional Korean foods, did not have a high level of difficulty in eating them, and had high dietary self-efficacy with regard to eating them. Therefore, we suggest that children should be exposed to various traditional Korean foods, along with education about them, in order to enhance their concern and motivation to eat them.

• Korean Journal of Community Nutrition
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• v.11 no.5
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• pp.598-607
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• 2006

The following study has been conducted by carrying out the nutrition education program for preschool children and measuring the change in their food preference and nutritional knowledge. The 28 boys and 22 girls with the average height of $117.4{\pm}5.1cm$ and weight $21.8{\pm}3.5kg$ participated in the study. The favorite foods of the children were: meat (51.1%) being the highest, fruits (38.3%), carbohydrates (23.4%), while the least favored food was vegetables (75%). It indicated that 36.2% of the children were having unbalanced diets. The change in food preference after the implementation of the nutrition education program was the significant increase in preference in vegetables and fruits (p<0.01) and proteins such as meat, fish, eggs and beans (p<0.05). The differences in food preference among boys and girls were that the boys showed significant increase in vegetables and fruits (p<0.01) while there was a decrease in the simple sugar groups (p<0.01). Regarding girls, there were significant increases in vegetables and fruits as well as protein groups of meat, fish, eggs and beans (p<0.01). The changes in the nutritional knowledge of the preschool children after the implementation of the nutrition education program were scores for the fruits and vegetables group and carbohydrates group showed a significant increase while the scores for the oil and nuts group had decreased considerably. The average score on nutritional knowledge has significantly increased from 9.07 to 10.17 (p<0.01) and the score on the roles of the nutrients increased from 3.02 to 3.48 (p<0.05). The changes in eating habits of the children after the nutrition education were the answer for the change in eating habits of the children after the nutrition education was 'slight change' 61.4%. Also, the change in food preference was 'slight change' 61.4% and the improvement in nutrition education was 'slightly' 50%. According to the results of this study, it is evident that the change in eating habits and the acquisition of nutritional knowledge is very difficult, thus requiring consistent and prolonged education. Therefore, it seems to be best to include a more systematic and professional nutrition education program in preschool education. Also, the education for the parents should be implemented since the effect of education on children is greater when it is closely connected with the education at home.

• Korean Journal of Community Nutrition
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• v.14 no.6
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• pp.710-721
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• 2009

This study was conducted to investigate the body weight status (by WLI: Weight-Length Index) and dietary habits and to assess the nutritional status among preschool children in the Daegu area. Dietary habits including dietary attitude and behavior were investigated using questionnaire answered by mothers of 680 subjects aged 4 to 6 years old (508 completed). Also, dietary intake survey using 24-hour recall method was performed by mothers of the children. According to WLI, the underweight, normal, overweight and obesity level of subjects were 9.1, 62.0, 19.5, and 9.4%, respectively. As well, the number of girls was higher than boys in underweight, overweight, and obese group. There were significantly different on overeating, eating fast, and preferring eating-out by body weight status, and overweight group got higher score than underweight or normal-weight group (p < 0.01, p < 0.001). As well, there was significantly different on not moving around during mealtime by body weight status, and underweight group have lower score than obese group (p < 0.001). From the 24-hour recall survey, it was found that intakes of all the nutrients were higher than the %KDRI except energy, calcium and folate. The energy intake of underweight group of 4~5-year old (1338.2 kcal) and 6-year old was lower than Koreans %DRI for those age group. Folate and dietary fiber intakes of obese group were significantly lower than underweight (p < 0.01, p < 0.05). For 4~5-year old, vitamin $B_6$ intakes of obese group were significantly higher than obese group (p < 0.05). For 6-year old, obese group showed that intake of vitamin $B_1$ was significantly higher than the other three groups, and intake of vitamin $B_1$ of overweight group was significantly higher than the other three groups. Taken together, these results indicate that there were significant differences in the nutrient intake level and dietary habits of preschool children by body weight status in Daegu area. Therefore, parents (family) and caregivers should be aware of the prevalence of obesity and nutritional status of preschool children, and start nutrition education as soon as possible.

• Korean journal of food and cookery science
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• v.19 no.4
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• pp.413-422
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• 2003

The purpose of this study was to investigate the relationship between the dietary attitude and health on the stress status of office - workers in Seoul. This research was conducted on 389 office workers (224 males and 165 female). In relation to stress, it was found that the degree of stress as an office workers was ′slight′ and much for 45.2% and 40.6%, respectively, of the study population. Consequently, most office workers were found to be under stress. The amount of food intake under stress was found to be ′reduced′, unchanged and increased in 38.3, 37.0 and 24.7%, respectively, of those surveyed. The preferred foods when under stress were found to be alcoholic and non-alcoholic beverages, in 57.6% of cases, which was the highest proportion regardless of age, sex, marital status, occupation and educational level. The desired taste when under stress was found to be ′hot′ and sweet in 34.7 and 26.0%, respectively. As to the feeling after food intake, 51.7% responded that food intake was not useful for the relief of stress, which was the highest proportion and many salaried females worried about weight gain. With regard to the relationship between stress, health and nutrition, 69.9% of office workers responded that they thought the relationship of these factors was very high. As for the greatest cause triggering stress, 50.3% responded "due to workplace and job". The best method for relieving stress was to do exercise, with a 30.1 % response, The average score for the degree of stress and tension was 7.2, with 64.0% of office workers having an average level between 6- and 9. The degree of stress was higher for females than males, for unmarried salaried and hot-tempered persons. Those not doing exercise were subject to the highest levels of stress, and those a having sufficient sleep were found to be subject to less stress. Those interested in their health were found to have a good condition and lower levels of stress. In correlation with eating habits, stress, the degree of tension and personality, the F-value was found to be 43.505 (p<0.01), with an explanatory power of 0.294 (29.4%), indicating significant differences. This means that office workers with higher degrees of stress and tension tended to have poorer eating habits. Since bad eating habits have an adverse effect on both the state of physical health and individuals emotional development, for the purpose of correctly managing stress, office workers should make efforts to practice good eating habits.

• Journal of the Korean Dietetic Association
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• v.5 no.2
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• pp.153-163
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• 1999

The purpose of this study was to obtain basic data of nutrition education for obese children and to examine food habits, food behaviors, and nutrition knowledge. A convenience sample of 84(male:62, female:22) obese children was selected from "98 Children Nutrition Camp". The survey design employed a structured questionnaire. The results of this study were summarized as follows. 1. The percentage of the subjects who overestimated their body weight was higher in female compared to male. Only 35.9% of highly-obese subjects considered them as 'very fat'. The experience of weight control was higher in female than in male, and it was also higher moderately- or highly-obese subjects compared to mildly obese. 2. 64.3% of subjects reported that they regularly eat breakfast. The percentage of the subjects who indicated that they eat at regular meal time or they eat very irregularly was highest in the highly-obese subjects. 3. 34.5% of subjects reported that they eat very fast. The eating speed was slower in female compared to male, and in obese subjects. 55.4% of subjects reported that didn't eating out. 4. 80.9% of subjects had snacks, and most of them had snack between lunch and dinner. The reason the subjects eat snack was hunger. The most favorite snack was cookies. 5. The most preferred and distasteful food was meats(32.1%) and vegetables(67.1%), respectively. 6. The score of food behaviors was relatively low in most subjects. 7. The level of nutrition knowledge was in order of fair(83.1%), poor(9.6%), excellent(7.3%), and was higher in male compared to female. Consequently the results of this study showed to disagreement among food habits, food behaviors and nutrition knowledge, and feel keenly the necessity of education connecting of these. This education had to be practical education to change food behaviors.