• 대한임상검사과학회지
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• 제45권3호
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• pp.96-101
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• 2013

Increased waist circumference has shown to be more strongly associated with cardiovascular disease risk factors. The purpose of this study is to investigate the association between exercise capacity and cardiovascular risk factors among obese types in adult men. The subjects of this study were a total fifty-four obese persons and obesity criteria is body mass index $(BMI){\geq}25kg/m^2$. Diagnostic criteria for obesity was defined as a waist circumference of ${\geq}90cm$. The BMI in the obese subjects, as judged by the presence or absence of abdominal obesity, were classified into two groups (non-AO: without abdominal obesity group, AO: with abdominal obesity group). AO presented lower total exercise time, metabolic equivalents (METs) than Non-AO. AO showed slow HRR (heart rate recovery) response. HRR was negative correlated with BMI, body fat mass, waist circumference. AO had a high heart rate and a low cardiac output in submaximal exercise stage 1~2. In conclusion, AO's (with abdominal obesity groups) total exercise time, METs and HRR are lower than Non-AO. HRR is related with BMI, body fat mass and waist circumference.

• 대한간호학회지
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• 제43권2호
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• pp.165-175
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• 2013

Purpose: This study was done to examine not only the relationships between body mass index (BMI), self-esteem, body image dissatisfaction (BID) and mental health, according to gender, but the mediating role of BID on mental health in relation to BMI and self-esteem among early adolescents. Methods: Data from 576 (296 boys and 280 girls) elementary school students in grades 5 to 6 were collected. A multiple-group path analysis was utilized to examine the relationships between BMI, self-esteem, BID and mental health by gender. Results: In the path analysis for all students, poor mental health was related directly to BID, while it was indirectly related to BMI and self-esteem. In the multiple-group path analysis of both genders, BID was found to have a significant direct and indirect effect on mental health for girls alone. Conclusion: The findings suggested that BID should be examined early to prevent poor mental health in early adolescent girls. This study helps to elucidate the role of early adolescent BID on mental health and provides insight for further prevention and intervention programs in school and community mental health settings.

• 대한골대사학회지
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• 제25권4호
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• pp.219-226
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• 2018

Background: Although studies and interest in sarcopenia have increased, it is still a matter of debate which muscle mass index better represents the aging process. We compared 3 indices for muscle mass (appendicular skeletal muscle mass [ASM]/weight, $ASM/height^2$, and the body mass index [BMI]-adjusted muscle mass index [ASM/BMI]) to determine which better reflected the aging process in terms of the decline in bone mineral density (BMD), visual acuity (VA), hearing power, renal function, pulmonary function, and handgrip strength. Methods: We performed a retrospective cross-sectional study using the Korea National Health and Nutrition Examination Survey in the Korean population. Between 2008 and 2011, a total of 14,415 men and 17,971 women aged 10 years or older participated in the study. We plotted the changes in the 3 indices of muscle mass and compared these with changes in BMD, VA, hearing power, renal function, pulmonary function, and handgrip strength according to each age group. Results: The ASM/BMI showed similar changes in terms of surrogate markers of the aging process, while the ASM/weight and $ASM/height^2$ showed no correlation. Conclusions: Among muscle indices for sarcopenia, only the ASM/BMI represented the aging process.

• 복식문화연구
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• 제18권1호
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• pp.93-108
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• 2010

R$\ddot{o}$hrer index, Vervaeck index and Body Mass Index(BMI) are frequently used in order to judge obese subjects in clothing & textiles field. However, there are no certain criteria of judging the degree of obesity. Each researcher utilized these obesity indices according to their own criteria so far. Therefore, the purpose of the study is to suggest a reliable obesity index and new criteria for judging the degree of obesity. The results are as follows; Utilizing frequency analysis, main percentiles, minimums, maximums and ranges were presented by 5 age groups from twenties to sixties. Obesity rates dramatically increased, the subject got older. Especially, obesity rate of the subjects in their fifties and sixties were much higher than other age groups. 1.6 & higher can be used in the R$\ddot{o}$hrer index, 98 & higher can be used in the Vervaeck index, and 25 & higher can be used in the BMI as the Optimal criteria of the obesity. Total of 24 body measurements and 3 obesity indices were used for analyzing the correlation analysis. All heights measurements showed negative correlation with the 3 obesity indices. It is determined heights measurements have high correlation with R$\ddot{o}$hrer index compare to other indices. Crotch height, interscye back, neck shoulder point to breast point, bust circumference, waist circumference, upper arm circumference and armscye circumference have high positive correlation with all obesity indices. According to the ANOVAs by each percentile group of the R$\ddot{o}$hrer and Vervaeck indices, there are big significances in all measurements and obesity indices except arm length. In general, heights decreased significantly by getting bigger, while circumferences and lengths, widths and indices increased rapidly by getting bigger. The results of the analysis by each percentile group in the BMI, it showed the significant differences in the all measurements except cervical height and arm length. There were similar tendency of differences according to the degree of the obesity in BMI percentile groups. It was confirmed that the BMI is the most reliable index for judging the obesity owing to the high correlations and significant differences with other measurements.

• Asian Pacific Journal of Cancer Prevention
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• 제13권3호
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• pp.1003-1010
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• 2012

Background: This study examined the influence of body mass index (BMI), subjective body perception (SBP), and the differences between BMI and SBP influence on smoking among women. Methods: This study used the Korea National Health and Nutrition Examination Survey IV-2, 3 2008-2009. A urinary cotinine test was administered to 5485 women at least 19 years of age. Individuals whose cotinine level was at least 50 ng/mL were categorized as smokers. A multiple logistic regression analysis was performed to estimate the extent to which body-related variables affect female smoking. Results: Women with a lower BMI who perceived themselves to be normal or very fat were 2.09 times (1.14-3.83) more likely to smoke than women with a normal BMI and SBP. Women who were never married with a low BMI and thin SBP were 3.11 times (1.47-6.55) more likely to smoke than women with a normal BMI and SBP. Married women with a high BMI who considered themselves very fat were 0.63 times (0.43-0.94) less likely to smoke than women with a normal BMI and SBP. In contrast, divorced and widowed women with a low or normal BMI who considered themselves very fat were 26.1 times (1.35-507.3) more likely to smoke. Conclusions: Discrepancies between the objective physical condition (BMI) and the subjective body image (SBP) influence the female smoking rate. To reduce the number of female smokers, public education on the association between smoking behavior and weight issues is needed, especially among women with low BMI and distorted weight perception.

• 동아시아식생활학회지
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• 제9권3호
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• pp.315-324
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• 1999

This study was carried out to evaluate high-school students' nutrient intakes according to the status of body mass index, and to analyze the Physical health status. The volunteers were 560 high school students in 8 provinces, but 511 students were analyzed. It was used questionnaire method as an instrument tool. The questions were composed with socio-demographic characteristics, physical health condition by CMI. and the evaluation of food consumption by 24 hours recall method. Anthrophometric measurement of height and weight was used the data of health chart of each school-class. The family situation of the subjects was mostly nuclear family(73%), agricultural work(53%), and normal living situation(75%). The students of the BMI range of 18-23 were 71%. but those of the overweight(over 23) were 15%. The individual characteristics were different in BMI. Female and third grade students were more of BMI scores. The overall nutrient intakes of students were low compared with Korean RDA of adolescent. especially iron. calcium. vitamin A, and riboflavin. The mean adequacy ratio(MAR) of nutrient intakes was 0.45$\pm$0.23 only. The energy nutrients, ash, and vitamin A intakes were significantly different according to the different BMI groups. But the other mineral and vitamin intakes were not different according to BMI. By the correlation of individual characters with BMI, height was negatively and weight and school grade were positively correlated, but sleeping time and study accomplishment were not correlated. By the correlation of nutrient intakes with BMI, there were negative correlation with the intakes of energy, carbohydrates, potassium, and thiamin. According to this results, We concluded that Korean high-school students living in rural were lower intake of nutrients(iron, vitamin A, and riboflavin) and unbalanced nutrient intakes(MAR of 0.45$\pm$0.23). The state of lower intakes of energy nutrients and vitamin A intakes in higher BMI group mean the students spend their effort to reduce BMI for avoiding obesity. But they need to balanced diet. and good nutrient intakes. These situations would be necessary for students to ameliorate quality of living in rural.

• Gut and Liver
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• 제12권6호
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• pp.633-640
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• 2018

Background/Aims: Obesity is a risk factor for gastroesophageal reflux disease (GERD), with several studies demonstrating positive associations between body mass index (BMI) and GERD symptoms. However, little is known about the effect of BMI changes on erosive esophagitis (EE). In this study, we investigated whether BMI reduction could resolve EE. Methods: A retrospective cohort study was performed to assess the natural course of EE according to changes in BMI. Participants undergoing health check-ups from 2006 to 2012 were enrolled, and 1,126 subjects with EE were included. The degree of esophagitis was measured by upper endoscopy and serially checked over a 5-year follow-up. Logistic regression and Cox proportional hazards models were used to investigate the association between BMI reduction and EE resolution. Results: Substantial weight loss is associated with EE resolution. The adjusted odds ratio for EE resolution was 1.44 (95% confidence interval [CI], 1.09 to 1.92) among participants with a decrease in BMI compared to those with no decrease in BMI. The EE resolution rate was related to the degree of BMI reduction. The effect of weight loss on EE resolution was higher among subjects who lost more weight. Compared with subjects with no decrease in BMI, the hazard ratios for EE resolution were 1.09 (95% CI, 0.89 to 1.35), 1.31 (95% CI, 1.01 to 1.72) and 2.12 (95% CI, 1.44 to 3.12) in subjects with BMI reductions of ${\leq}1$, 1-2, and >$2kg/m^2$, respectively. Conclusions: EE resolution is associated with a decrease in BMI, and weight loss is potentially an effective GERD treatment.

• Clinical and Experimental Pediatrics
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• 제62권11호
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• pp.416-421
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• 2019

Background: The seropositivity rate of hepatitis B surface antigen (anti-HBs) antibodies is known to be ≥95% after hepatitis B virus vaccination during infancy. However, a low level or absence of anti-HBs in healthy children is discovered in many cases. Recent studies in adults reported that a reduced anti-HBs production rate is related to obesity. Purpose: To investigate whether body mass index (BMI) affects anti-HBs levels in healthy children following 3 serial dose vaccinations in infancy. Methods: We recruited 1,200 healthy volunteers aged 3, 5, 7, or 10 years from 4-day care centers and 4 elementary schools. All subjects completed a questionnaire including body weight, height, and vaccine type received. Levels of serum hepatitis B surface antigen (HBsAg) and anti-HBs in all subjects were analyzed using electrochemiluminescence immunoassay. The standardized scores (z score) for each sex and age were obtained using the lambda-mu-sigma method in the 2017 Korean National Growth Charts for children and adolescents. Results: Our subjects (n=1,200) comprised 750 males (62.5%) and 450 females (37.5%). The overall anti-HBs seropositivity rate was 57.9% (695 of 1,200). We identified significant differences in mean BMI values between seronegative and seropositive groups (17.45 vs. 16.62, respectively; P<0.001). The anti-HBs titer was significantly decreased as the BMI z score increased adjusting for age and sex (B=-15.725; standard error=5.494; P=0.004). The probability of anti-HBs seropositivity based on BMI z score was decreased to an OR of 0.820 after the control for confounding variables (95% confidence interval, 0.728-0.923; P=0.001). Conclusion: There was a significant association between anti-HBs titer and BMI z score after adjustment for age and sex. Our results indicate that BMI is a potential factor affecting anti-HBs titer in healthy children.

• 한국보건간호학회지
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• 제26권2호
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• pp.215-226
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• 2012

Purpose: This study was conducted in order to investigate factors associated with employment stress and the relationships among employment stress, depression, and body mass index (BMI) among college nursing students. Methods: Subjects included 319 students at two colleges in Kyonggi and Chungbuk province, who were asked to complete a survey questionnaire. T-test, ANOVA, Pearson's correlation coefficients, and multiple regression were used for statistical analysis of data. Results: Results of this study showed an average value of 53.39 for the total employment stress scale, and both values for familial environmental stress and school environmental stress were relatively higher among subscales of employment stress. The average score on the depression scale was 10.18 indicating slightly high, and BMI was 20.35 with an obesity fraction of 12.3%. In addition, the results also indicated that they suffered from much stronger employment stress according to their severity of depression. Overall factors that affect employment stress included depression, age, economic status, and whether family members live together or not. However, BMI had no significant statistical effect on employment stress. Conclusion: Results of this study suggest that it is necessary for students to measure and control their employment stress and depression, because employment stress is closely associated with depression.

• 근관절건강학회지
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• 제15권2호
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• pp.183-190
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• 2008

Purpose: The purpose of this study was to examine the effect of a walking program on body mass index (BMI), blood pressure, cholesterol, and blood glucose in community-dwelling older adults. Method: A quasi-experimental research design (one group pretest-posttest) was employed. Participants were recruited in Seoul and a total of 57 community-dwelling older adults completed the 10-week walking program. Descriptive statistics and paired t-tests were used in the data analysis by SPSS WIN 14.0. Result: The participants showed lower BMI, systolic blood pressure, diastolic blood pressure, cholesterol level, and blood glucose level after than before participation in the walking program. Body mass index significantly decreased (t= 2.911, p= .005) after completing the walking program. There were, however, no significant changes in blood pressure, cholesterol, and blood glucose after completing the walking program. Conclusion: Findings of this study indicated that the 10-week walking program had favorable effect on BMI. Future research needs to target various older adult groups during a long-term period.