• Journal of the Korean GEO-environmental Society
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• v.11 no.5
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• pp.15-23
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• 2010

Dry sieving, wet sieving and photoscattering analyzer were tested as particle size analyzing methods for sediments from rivers and lakes of Han river, Nakdong river, Youngsan river, and Kumgang river area. Dry sieving showed a big error due to coagulating effect over drying process and this phenomena was severe for lake sediment. Wet sieving and PSA showed an accurate results though wet sieving needs more labor and complicate processes. Freeze-dry or freeze-dry after oxidation of organics with hydrogen peroxide showed improved results but gave lower portion of fine particles in comparing with wet sieving. Heavy metal contents and extractable metal contents were investigated for the sediments and high heavy metal content and extractable amount were obtained from fine particles as expected. Using of proper particle size analyzing method is important and the sediment management should be focused on the fine particles.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.3
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• pp.157-164
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• 2017

This study investigated the prevalence of scoliosis among undergraduate students who were in early adulthood, and to examine its relationship with body mass index (BMI), which has been associated with scoliosis in previous studies. A descriptive survey of 158 students of universities based in Seoul, Daejeon, Daegu, and Gyeonggi Province was conducted. A structured questionnaire comprising items pertaining to general features, postural features, and BMI was used, and the angle of the trunk rotation (ATR) was measured directly with a scoliometer to assess the spinal angle. Participants with an ATR of greater than $6^{\circ}$ were classified into the scoliosis group. Data were collected for three weeks from November 7, 2014. Scoliosis and BMI were analyzed for their frequencies and percentages, and their relationships were analyzed using the ${\chi}^2$-test and Logistic regression. Overall, 114 (72.2%) participants had an ATR of smaller than $5^{\circ}$, while 44 (27.8%) had an ATR of greater than $6^{\circ}$. After excluding the confounding variables, the overweight group was 2.63 times more likely than the normal BMI group to have an ATR of greater than $6^{\circ}$ which was statistically significant. However, the underweight group was 0.24 times less likely than the normal BMI group to have an ATR of greater than $6^{\circ}$, but this difference was not statistically significant. Although early examination and management of scoliosis in South Korea is generally performed on children and adolescents, the high prevalence of scoliosis among university students found in this study calls for aggressive early examination and management for this age group as well.

• Journal of the Korean Society of Food Science and Nutrition
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• v.45 no.10
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• pp.1488-1496
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• 2016

The purposes of this study were to analyze mothers' eating, cooking, and exercise habits based on their demographic characteristics and to examine the relationship between those habits and their late school-aged children's Broca index. A total of 393 questionnaires were mailed to the mothers of late school-aged children who registered at four elementary schools in the Seoul area, of which 159 participants (40.0%) completed questionnaires. Statistical data analyses were performed using SPSS/Win 21.0 for descriptive statistics, t-test ANOVA, and Pearson's regression coefficient. There was a statistically significant difference in mothers' cooking habit (F=3.920, P=0.022) and exercise habit (F=3.211, P=0.043) according to their educational level. Interestingly, 82.4% of mothers had a Broca index of less than 90% of normal body mass level. A significant positive correlation of Broca index between mothers and their late school-aged children (r=0.345, P<0.001) indicated that children whose mothers had a low body mass level also tended to have a low body mass level. In this study, late school-aged children's Broca index was not significantly related with mother's eating (r=-0.072, P=0.367) or exercise habits (r=-0.010, P=0.897) but was significantly related with their mother's cooking habits (r=-0.157, P=0.048). Considering there are few studies examining the impacts of mother's cooking habits on their children's appropriate body mass, the results suggest that developing an effective educational program to cultivate mothers' healthy cooking habits to improve school-aged children's health status is very important. The findings of this study provide important data that could be used when developing health education programs tailored to the multi-dimensional impacts of mothers' life habits on their last school-aged children's developmental health status.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.14 no.1
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• pp.83-91
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• 2007

Purpose: This study was done to examine the differences in the fluid volume deficit according to levels of depression and BMI. The results of this study will provide fundamental information for developing nursing interventions for hydration management. Method: The participants were 51 hospitalized elderly people in K province. Data were collected from September 4 to 30, in 2006. A structured questionnaire was used for the data collection. Frequencies, Percentages, Means, Standard Deviation, t-test, Mann-Whitney U test, and Kruskal-Wallis test were used with the SPSS Program to analyze the data. Results: There were significant differences in the fluid volume deficit between elders in the depressed and normal groups. Participants who had a BMI of less than $21kg/m^2$ had the highest fluid volume deficit. Conclusion: Water is an essential part of the human body although it is least studied in elderly people. Health care providers need to increase awareness of the importance of hydration status among hospitalized elderly people with chronic illnesses.

• Proceedings of the Korean Nutrition Society Conference
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• 1999.05b
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• pp.94-94
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• 1999

• Journal of the Korean Society of Radiology
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• v.13 no.1
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• pp.95-101
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• 2019

The purpose of this study is to reduce the dose to the patient by different application of ASIR according to the Body Mass Index (BMI). In particular, we wanted to find out the application values of ASIR that are most appropriate for the standard weight. Studies have shown that increasing the application of ASIR to 50% in patients with a body mass index of 25 or less reduces CTDIvol 58.17% and DLP 60.49% compared to using only FBP. A comparative analysis of the noise by the BMI and the SNR values found that the noise increased as the BMI increased, but the application of ASIR resulted in less noise than the FBP alone. In addition, it was found that the more ASIR is applied, the more SNR is increased.

• Journal of the Korean Applied Science and Technology
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• v.35 no.3
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• pp.709-718
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• 2018

The purpose of this study is to investigate of body mass index, body image, eating attitude, and physical activity in physical education freshman. 341 male and 254 female students were participated in this study, and filled out the BSQ, EAT-26, and IPAQ questionnaire. Based on the their BMI, normal was 67.2%, underweight was 5.4%, overweight was 17.8%, and obesity was 9.6%. The normal rates of male and female were 57.7% vs. 78.7%. The results of BSQ were indicated 48.2% of participants was dissatisfied, and the rates of male and female were 22.9% vs. 82.3%. The results of EAT-26 showed that 20.2% of participants had abnormal eating attitude, and the rates of male and female were 7.3% vs. 37.4%. 99% of participants was physically active. All variables were statistically different between gender. There was positive correlation between body image and eating attitude in male and female students, and BMI was correlated with body image and eating attitude in male students. However, physical activity was no relationship with other variables. In conclusion, physical education students had high rate of dissatisfied in body image and rate of abnormal eating attitude. In addition, the higher dissatisfied in body image was the more abnormal eating attitude. Therefore, the proper education about weight management and change of social awareness may be needed.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.11
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• pp.543-553
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• 2020

This study analyzed secondary data using the results of the 7th Korea National Health and Nutrition Survey in 2018. The aim of this study was to identify and compare the effects of physical activity, body mass index, and depression on the health-related quality of life of elderly women. Specifically, the sample consisted of 550 women with hypertension and 375 women without hypertension. The data were analyzed using descriptive statistics, chi-square test, t-test, and multiple linear regression with the IBM SPSS/WIN 22.0 program. Multiple linear regression analysis showed that age, education, physical activity, body mass index, and depression accounted for 26.9% of the health-related quality of life (HRQOL) in the hypertension group (F=14.30, p<.001), followed by physical activity (t=3.02, p=.003), body mass index (t=-3.12, p=.002), and depression (t=-7.69, p<.001). Education and depression accounted for 31.7% of the QoL in the non-hypertension group (F=4.42, p<.001), followed by depression (t=-5.53, p<.001). Based on these results, a physical activity intervention program will be needed to reduce depression and obesity in older women. Moreover, further research comparing the characteristics of other specific physical activities in elderly women with hypertension is recommended.

• Proceedings of the KSCN Conference
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• 2004.05a
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• pp.409-410
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• 2004

현대사회에서 생활의 편리함을 추구하면서 발생한 신체활동량 감소와 동물성 식품위주의 식습관은 비만 인구의 급속한 증가를 초래하고 있다. 본 연구는 과체중 및 비만에 속하는 성인 남녀에 있어서 자신의 신체상과 체성분 및 식생활 태도와의 관계를 살펴봄으로써, 과체중 및 비만인에 대한 영양교육의 기초 자료를 제공하고자 하였다. 과체중 및 비만 (체질량 지수 ＞ 25)에 해당되는 성인 436명 (남자 239명, 여자 197명)을 대상으로 일반사항, 자신의 신체상, 체성분, 식생활 태도를 2003년 10월에 조사하였다.(중략)

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.6
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• pp.2570-2578
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• 2012

We investigated whether coffee and green tea consumption reduced the risk of elevated alanine aminotransferase(ALT)/aspartate aminotransferase(AST) activity and the prevalence of metabolic syndrome. Participants were 5,283 adults, aged 19-79 years, in the Third Korean National Health and Nutrition Examination Survey, with excessive alcohol consumption, overweight, viral hepatitis, metabolic syndrome. Increased coffee and green tea consumption was not associated with decreased serum ALT. However, amount of coffee consumption had negative correlation with serum AST activity. Moreover, coffee consumption reduced the prevalence of metabolic syndrome (p for trend <0.001). Hypertension, impaired glucose metabolism and dyslipidemia was involved as subgroup of metabolic syndrome. Comparing persons who drank more than 2 cups per day with less than 1 cup per day, the prevalence of all subgroups was declined significantly. In this large, national, population-based study, consumption of coffee was associated with lower the risk of metabolic syndrome.