• Journal of Fisheries and Marine Sciences Education
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• v.20 no.2
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• pp.209-221
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• 2008

While internet and cellular phones are very attractive to adolescents, they cause a lot of problems because of adolescent's addiction to internet and cellular phones. The purpose of this study is to investigate relations among overuse of internet and cellular phone and academic achievement with middle school students according to their sex and grade. For this purpose, the survey consist of 44-item, self-administered paper-and-pencil questionnaire from 444 two middle schools students located in Busan. Also, their academic achievements were used for statistical data processing. As a result, firstly, middle school students did not tend to be so seriously addicted to the internet and cellular phones. The internet was used more by male students and cellular phones by female students, and the more male and female students used the internet, the higher they tended to use the cellular phones. There was a negative correlation between the tendency of internet use and academic achievement, but there were no significant differences between genders. In terms of the tendency of using cellular phones and academic achievement, there were no correlations among male students, but there was a negative correlation in female counterparts. Secondly, in terms of grade, the 2nd-grade students had a higher tendency to use both of them than the 1st- and 3rd-grade counterparts. The tendency of using the internet and cellular phones, in each grade had significantly static correlation and the higher they tended to use the internet, the lower they had academic achievement the 3rd-grade. On the other hand, the tendency of using cellular phones, only 2nd-grade students had low academic achievement.

• Journal of the Korean Society of Food Culture
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• v.24 no.4
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• pp.359-365
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• 2009

The objective of this study was to investigate a method to improve and to increase the utilization of Korean traditional food in middle school students by examining preferences and perceptions. Middle school students in Seoul area were surveyed from 29 November to 6 December 2007. The results are summarized as follows: 83.9% students ate Korean food as breakfast. The reasons for the success of Korean food were 'Nation's traditional food' (29.2%), 'fit in taste' (27.4%), and 'suitable match of nutrients' (24.8%). Students responded that the following needed to be changed in order to improve Korean food: 'alleviation of strong taste' (30.3%), 'various cooking methods' (23.9%), and 'convenience of eating the food' (22.1%). Meal preferences in this survey of middle school students were 'Korean food' (4.09), 'Western food' (4.08), 'Japanese food' (4.00), 'Chinese food' (3.91) and 'Fast food' (3.55). Perceptions in the taste of Korean food were 'spicy taste' (3.28), 'hot taste' (3.22), and 'salty taste' (3.15). Male students (3.23) perceived a higher salty taste than female students (3.05). Expectations for the taste of Korean food included 'spicy taste' (3.16) and hot taste (3.03). Male students (3.25) anticipated the spicier taste more than female students (3.05).

• Journal of Families and Better Life
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• v.26 no.2
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• pp.1-12
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• 2008

The variables studied in relation to adolescents' prosocial behaviors were grade, prosocial moral reasoning, empathy, self-esteem, parental prosocial behaviors, support and marital conflict, social economic status, peer prosocial behaviors and support, teacher support, school life satisfaction and achievement. The sample consisted of 837 seventh and tenth grade adolescents. Statistics and methods used for the data analysis were Cronbach's alpha, frequency, percentage, t-test, Pearson's correlation and multiple regression. Several major results were found from the analysis. First, female students had more prosocial behaviors than male students. Second, male and female students' prosocial behaviors showed positive correlations with grade, prosocial moral reasoning, empathy, self-esteem, parental and peer prosocial behaviors and support, teacher support and school life satisfaction. However, female students' prosocial behaviors had a negative correlation with parental marital conflict. Third, important variables predicting male and female students' prosocial behaviors were empathy, peer prosocial behaviors and parental prosocial behaviors. Important variables predicting male students' prosocial behaviors were teacher support and prosocial moral reasoning. On the other hand, the important variable predicting female students' prosocial behaviors was self-esteem.

• The Korean Journal of Community Living Science
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• v.15 no.2
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• pp.73-82
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• 2004

There are many concerns about the use and abuse of both licit and illicit substances among adolescents. This study was performed to understand the drinking status and drinking behaviur of middle school students. Self reports on drinking behaviur, dietary habits and one-day dietary records were obtained from 213 boys and 202 girls using anonymous questionnaires. One hundred and forty five of 415 students(34.9%) have experienced drinking and 48.3% of them initiated it at primary school. The motivation for first drinking was different between boys and girls; ' after sacrificial rite' for boys, ' curiosity' for girls. The most plausible reasons for drinking were ' boredom' and ' stress reduction' , and they felt the strongest desire to drink when they felt ' anger or frustration' Drinking behavior was not significantly different between male and female student except in the motivation for first drinking. But interestingly, the girls drank with friends mostly, while the boys drank with their parents. Drinking-experienced students showed significantly high rates of skipping meals and in particular skipping breakfast. DVS was found as $14.71\pm{4.51}$ and $13.95\pm{4.69}$ in non-drinking and drinking, respectively. This study showed that the drinking experience of middle school students were initiated earlier in primary school, and that drinking behavior of female students was not different with that of male student.

• The Korean Journal of Food And Nutrition
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• v.19 no.4
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• pp.427-434
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• 2006

This study was performed to investigate the consumption and the preference of chungkukjang products among the middle school students. The subject were 538 middle school students(male 283, female 255) in $3^{th}$ grade, and were asked to fill out the questionnaire. The collected data were analyzed by SAS package. The result showed that most students knew about traditional chungkukjang(88.5%) and chungkukjang powder(68.2%), but only 43.5% and 29.4% of the respondents knew about raw chungkukjang and chungkukjang pill, respectively. When asked how often they eat chungkukjang products, traditional chungkukjang were taken often, but chungkukjang powder, raw chungkukjang and chungkukjang pill were shown to be taken relatively less. Over 60% of the students responded that they liked chungkukjang products, because of 'encourage by parents' and 'good for health', but there was no statistical difference by gender. When asked about the reasons for the dislike of the chungkukjang products, male students responded 'bad smell'of traditional chungkukjang, while female students 'eplied' not eating at home'. The students disliked the chungkukjang powder, chungkukjang pill and raw chungkukjang because of 'not knowing it.' These results showed that the social interest and support for the chungkukjang products were necessary and there was a need to advertise the chungkukjang products.

• Korean Journal of Community Nutrition
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• v.7 no.2
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• pp.156-166
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• 2002

The object of this study was done to assert the dietary habits, food intake, and dietary attitudes of 332 middle school students in a small city. The subject were divided into doe groups based on weight length index (WLI). Anthropometric data showed that the mean height and weight were 169.5 $\pm 8.2 cm and 55.1 $\pm 11.5 kg in the male students and 158.9 $\pm 5.9 cm and 48.1 $\pm 7.6 kg in the female students. The mean WLIs for male and female students were 103.0 $\pm 19.7 and 96.3 $\pm 12.8, respectively. Of the male students 27.9% and of the female students 32.1% were underweight, and of the male students 28.9% and of the female students 13.0% were overweight based on WLI index. Lack of good dietary habits in the overweight group tended to be the highest, the normal group was the second highest, and the underweight group was the lowest. The regularity of eating breakfast and flood prejudice scores in the overweight group were significantly higher than those in the normal and underweight group. With respect to flood intake, the normal group tended to consume grains, yellow or green vegetables, vegetables with light color, fruits, milk, yogurt, cheese, seaweeds, fat-floods, instant floods, sweet floods, carbonated drinks, and spicy and salty floods more frequently. The underweight group tended to consume meat-ham, eggs, fish and fried, stir-fried flood more frequently In dietary attitudes, the overweight group tended to have more favorable dietary attitudes, and the normal group tended to have negative dietary attitudes. The underweight group showed more negative responses to trying to eat/drink milk, yogurt, or cheese everyday than the overweight groups. It might be suggested that more effective nutritional programs should be developed and implemented to ensure good dietary habits in middle school students, including the overweight, as well as the underweight group. Further research on the comparison of dietary characteristics is needed, with consideration of the subjects WLI.

• Fashion, Industry and Education
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• v.16 no.2
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• pp.17-29
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• 2018

In this study, it is explored whether teasing from parents and siblings about appearance of children affects body satisfaction and self-esteem of middle school students. A total of 594 adolescents participated in the survey and the causal model was tested with the data. In results, parents' and siblings' teasing was significantly correlated. Parents' and siblings' teasing significantly affected body satisfaction that showed a significant impact on self-esteem. In the mean comparison by gender, female adolescents suffered more from parents' as well as siblings' teasing on appearance than did male adolescents. Female adolescents indicated lower body satisfaction than male adolescents whereas no gender difference was found in self-esteem. In the multiple-model comparison, both the parents' and siblings' teasing about appearance affected body satisfaction of female adolescents while only siblings' teasing affected body satisfaction of male adolescents. The results indicate that female adolescents are more likely to be exposed to parents' and siblings' teasing about appearance at home than male adolescents, resulting in negative body satisfaction that is influencing self-esteem. The finding could be used as a basis for family education, calling for an attention to this issue.

• Journal of the Korean Society of School Health
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• v.19 no.1
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• pp.1-15
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• 2006

Purpose : This study was to identify the incidence, trend, and situation of the unexpected sudden death of elementary, middle, and high school students in school for 17 years from 1988 to 2004 in seoul. Methods : We used the data of The Seoul Safety Mutual aid Association in seoul. Subjects were 53 unexpected sudden death in school from elementary, middle, and high school students, and we explored the gender, month, a day of the week, year, contents of situation, and medical certificate of death. Statistic analysis were chi-square test, Cochran-Armitage trend test, and the tool was SAS 9.1.Results : There were 53 unexpected sudden death students(male 42 and female 11). The incidence of male students was higher than that of female during 16 years except in 1995. The incidence occurred in middle school students were 31 (58.5%) of 53 and were also most frequent in middle school students in both of male and female students. In 1990, the incidence was 8(15.1%) students, 6(11.3%) in 1992 , and 5(9,4%) in 2000 respectively. The frequency of unsuspected sudden death in March was 11(20.8%) of 53 students, 11 (20.8%) in September, 7(13.2%) in October. In Thursday, it was 12(22.6%) of 53 students. Only 14(26.4%) students of 53 died during general life, but 39(73.6%) were related to excercise. The diagnosis of 14 students died during general life were cardiac arrest 7(50.5%), brain disorder 3(21.4%) which were based on medical certificate. But the diagnosis of 39 students died during or after excercise were brain disorder including cerebral hemorrhage 9(23.1%), heart disease 9(23.1%), cardiac arrest 8(20.5%), and unknown 6(15.4%), respectively. Conclusion : The incidence of unexpected sudden death were more frequent in male students, in middle school, and in excercise-related situation and the trend was similar for 17 years. Therefore, to prevent the unexpected sudden death, it needs to further study substantially the risk factors of unexpected sudden death including past history, life-style, nutrition and development, family history, and learning environment.

• Journal of the East Asian Society of Dietary Life
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• v.17 no.4
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• pp.597-606
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• 2007

The purpose of this study was to investigate the satisfaction with school foodservice programs by foodservice operation type in middle school and high school students in the Geumsan-Gun area. A total of 530 subjects(250 middle school and 280 high school students) from the Geumsan-Gun area participated from March 15 to March 23, 2004. Questionnaires were used to study dietary habits, activity levels, and current health conditions. The results of the study are summarized as follows. Based on the body mass index(BMI) scores of the students, the high school male BMI scores were significantly different(5%), and they were underweight for their height. The students were primarily dissatisfied with times for meals for school foodservice under direct management and with the quantity of meal for school foodservice under contract. Compared to the middle school female students, the male high school students were dissatisfied with the time for meals and quantity of food. Generally, the students were satisfied with dessert items the most. The food most often wasted was soup. The middle and high school students preferred food services to those under contract.

• Korean Journal of Health Education and Promotion
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• v.20 no.2
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• pp.113-125
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• 2003

Background： Recently, adolescent obesity was increased and tended to become obese adults, facing increased risk for diabetes, cardiovascular disease. Even before reaching adulthood, adolescent obesity already was experiencing hypertension, dyslipidemia, and diabetes mellitus. The purpose of this study was to find prevalence of obesity of high school students in Jeju island and association between obesity and cardiovascular risk factors and association between childhood obesity and adolescent obesity. Method： The study subjects were 6,064 students of twenty-two high school in Jeju island and health survey data was gathered from high school health examination data and hospital health examination data from Aug. 1999 to Dec. 1999. Adolescent obesity was evaluated by ideal body weight method in 1998 and body mass index. Cardiovascular risk factors were checked total cholesterol, systolic and diastolic blood pressure, fasting blood sugar. In 1,534 students, obesity at primary school is checked by primary and middle school health record. Results： Prevalence of obesity in Jeju island high school students is 12.6% in male students, 13.3% in female students by ideal body weight method and 8.7% in male students, 8.5% in female students by body mass index. Prevalence of obesity of male students in city area and district area of Jeju island were each 12.9%, 10.3% and that of male students in city area was significantly higher. Prevalence of obesity of female students in city area and district area of Jeju island were each 12.9%, 14.2% and not significantly different. Prevalence of obesity of male students in general and commercial school group were each 13.9%, 10.1% and that of general school group was significantly higher. In female students, Prevalence of obesity general and commercial school group was not significantly different. Total cholesterol, systolic and diastolic blood pressure were significantly associated with degree of obesity in male and female students(p＜0.05) and fasting blood sugar was only significantly associated with degree of obesity in male students(p＜0.05). In 1,514 students checked by health record, Odds ratio of obesity at primary and middle school that at high school were 12.96∼22.77 and was significantly associated. Conclusion： Prevalence of obesity of high school students in Jeju island is very high and adolescent obesity was significantly associated with cardiovascular risk factors. Mostly childhood obesity tended to become adolescent obesity and program of control of obesity at childhood and adolescence is required.