• Korean Journal of Community Nutrition
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• v.28 no.2
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• pp.141-159
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• 2023

Objectives: This study aimed to determine whether a mobile health (mhealth) intervention is effective in reducing weight and changing dietary behavior among employees with overweight and obesity. The study also investigated whether engagement with the intervention affected its effectiveness. Methods: The intervention involved the use of a dietary coaching app, a wearable device for monitoring physical activity and body composition, and a messenger app for communicating with participants and an intervention manager. A total of 235 employees were recruited for a 12-week intervention from eight workplaces in Korea. Questionnaire surveys, anthropometric measurements, and 24-h dietary recalls were conducted at baseline and after the intervention. Results: After the intervention, significant decreases in the mean body weight, body mass index, body fat percentage, and waist circumference were observed. Furthermore, the consumption frequencies of multigrain rice and legumes significantly increased, whereas those of pork belly, instant noodles, processed meat, carbonated beverages, and fast food significantly decreased compared with those at baseline. The mean dietary intake of energy and most nutrients also decreased after the intervention. When the participants were categorized into three groups according to their engagement level, significant differences in anthropometric data, dietary behaviors, and energy intake were observed following the intervention, although there were no differences at baseline, indicating that higher engagement level led to greater improvements in weight loss and dietary behavior. Conclusions: The intervention had positive effects on weight loss and dietary behavior changes, particularly among employees with higher engagement levels. These results indicate the importance of increasing the level of engagement in the intervention to enhance its effectiveness. The mhealth intervention is a promising model for health promotion for busy workers with limited time.

• Journal of the Korean Dietetic Association
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• v.22 no.4
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• pp.272-291
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• 2016

The purpose of this study was to investigate health-related habits, dietary habits, depression, stress, satisfaction of body weight, mini-dietary assessment (MDA) and dietary behaviors according to self-rated health among 255 university students in Kyungnam province. Statistical analyses were performed using the SPSS software package (version 19.0). The average ages of the subjects were 21.1 years. Participants were asked their self-rated health and 109, 105 and 41 students answered themselves as "healthy", "normal" and "unhealthy", respectively. The pocket money (P<0.05) was related with self-rated health, and meal frequency (P<0.01) of healthy group was higher than that of the unhealthy group. The self-reported depression level (P<0.01) and the score of depression (P<0.05) of the healthy group were lower than those of the unhealthy group. The self-reported stress level of the healthy group (P<0.05) was higher than that of the unhealthy group. The scores of nutritional behavior (P<0.05) and MDA (P<0.01) of the healthy group were higher than those of the unhealthy group. The scores for intakes of meat, fish, egg or beans, cereals and vegetables except kimchi, fruits, balanced diet and various foods were higher in the healthy group than in the unhealthy group. Our results suggest that pocket money, high meal frequency, low depression, satisfaction of present body weight, and good dietary behavior might influence good perception of self-rated health.

• Journal of Integrative Natural Science
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• v.1 no.2
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• pp.140-148
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• 2008

This study was conducted to compare of health status, dietary behaviors and nutrient intakes according to family types of the elderly in rural areas. Family types were divided into three types-elderly living alone, elderly living with spouse, and elderly living with spouse and children. Subjects were 119 persons aged over 65 years (34 male, 85 females) living in rural areas and period of survey was from 29 January 2007 to 2 February. General environmental factors, health status, dietary behaviors and nutrient intakes were compared according to family types, the elderly living along showed a significantly lower in monthly income(p<0.01), self perceived health status(p<0.001), Instrumental Activity of Daily Living(IADL) score, and General Self Efficacy Scale(GSES) score compared to the elderly living with spouse and those living with spouse and children. However, Center for Epidemiologic Studies Depression Scale(CES-D) was higher than those of the elderly living family members (p<0.05). In addition, sum of dietary behavior score was the lowest in the elderly living alone (22.3 in elderly living alone, 24.1 in elderly living with spouse, 23.4 in elderly living with spouse and children, p<0.001) and nutrient intakes of potassium, zinc, vitamin C(p<0.01 respectively), calcium, phosphorus, iron, vitamin A, vitamin E, vitamin B6 and folic acid(p<0.05 respectively) also reported to be significantly lower in the elderly living alone than in others of two types. From these results, health status, dietary behavior pattern and nutrient intakes of the elderly living alone were found to be inadequate overall, so measures to deal with these health and nutritional status were needed.

• Journal of Nutrition and Health
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• v.33 no.3
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• pp.343-352
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• 2000

The health-related habits, dietary behaviors and health status as well as the relationships between the health-related habits and dietary behaviors and the health status were investigated in the subjects of the middle aged(20 male and 50 female with the average age of 56.4$\pm$6.1) and the elderly(15 male and 15 female with the average of 68.4$\pm$3.6) living in Chonju. The survey included the personal interview using questionnaires, anthropometric measurement and biochemical tests in December, 1998. The breakfast irregularity was shown in 5.7% of male and 10.8% of female. The consumption of generally lightly salted foods was practiced in half of the subjects. The prevalence of smoking and alcohol drinking were shown in 20% and 31.4% of male group respectively. As judged by their body mass indices(BMI), none of the subjects was belong to the obesity group. However, the considerable degree of overweight was found in female subjects. The upper-body obesity was more prevalent in female compared to male group. The percentages of the anemic subjects as judged by WHO hemoglobin level were found to be relatively high specially for female(26.2%). The blood pressure, serum total cholesterol and LDL-cholesterol determination showed that the middle aged males and the elderly females tend to have higher levels compared to the different age bracket subjects from two-way ANOVA. Therefore, it can be assumed that the middle aged males and the elderly females are under the greater risk than the other groups. The analysis of the relationships between health-related habits and dietary behavior, and the health status showed that the regularity of breakfast, the consumption of lightly salted foods, the frequency of exercise and the alcohol drinking pattern influenced the city dwellers and the risk-related health habits as well as dietary behavior.

• Nutrition Research and Practice
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• v.15 no.1
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• pp.38-53
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• 2021

BACKGROUND/OBJECTIVES: Abdominal obesity is associated with metabolic disorders, and, in recent years, its prevalence in Korea has continuously increased. The change of lifestyle, particularly diet, is critical for the reduction of abdominal obesity. This study evaluated the effectiveness of an intervention focused on dietary self-efficacy and behaviors on the improvement of abdominal obesity. SUBJECTS/METHODS: Abdominally obese adults with additional cardiovascular risk factors were recruited through 16 medical facilities in South Korea from the year 2013 to 2014. The participants were randomly divided into 2 groups: an intensive intervention group (IG) that received a multi-component intervention to reduce abdominal obesity, by mainly focusing on dietary attitude and dietary behavior change, and a minimal information intervention group (MG) that received a brief explanation of health status and a simple recommendation for a lifestyle change. The interventions were provided for 6 mon, and health examinations were conducted at baseline, 3-, 6-, and 12-mon follow-ups. A path analysis was conducted to identify the process governing the changes in abdominal obesity. RESULTS: The IG showed an improvement in self-efficacy for eating control and diet quality at 6-mon follow-up. Abdominal obesity improved in both groups. Waist circumference was observed to be decreased through the path of "improved self-efficacy for eating control in food availability-eating restriction-improved dietary quality" in IG. Most changes in follow-ups were not significantly different between two groups. CONCLUSIONS: The intensive program targeting the modification of dietary behavior influenced management of abdominal obesity, and the effect occurred through a step-by-step process of change in attitude and behavior. Generally, improvements were also seen in the MG, which supports the necessity of regular health check-ups and brief consultation. The results can be used for further development and implementation of more successful interventions.

• The Korean Journal of Food And Nutrition
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• v.20 no.4
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• pp.433-439
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• 2007

The purpose of this study was to evaluate the body composition, health status, and dietary behaviors of middle-aged women in a weight control program at a community health center. The study subjects were 66 middle-aged women who lived in Ansan city, and they participated in the program for 24 weeks. Anthropometries, blood pressure, and serum biochemical indices were measured. These measurements were taken both before and after the weight control program, and the data were analyzed using the SPSS 12.0 program. Weight, fat mass, body fat %, and the waist-hip ratio all decreased. According to the decreases in body fat %, blood pressure, serum biochemical indices and dietary behaviors were improved after the weight control program. Thus, this study demonstrated the desirable changes of a weight control program offered at a community health center, for health conditions and physical fitness.

• Korean Journal of Health Education and Promotion
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• v.33 no.2
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• pp.15-25
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• 2016

Objectives: The purpose of this study was to evaluate effects of soda, fast food, and ramen consumption on dietary habit and health behavior of adolescents and to investigate pathway of which junk food influencing health status. Methods: The findings of this study were based on the data obtained from the 2015 11th Korea Youth Risk Behavior Web-based Survey. The analysis was accomplished using structural equation model which was designed based on the ideas that junk food consumption affects health status not only directly but also indirectly through eating habit and health behavior. Results: The structural models of both sexes revealed that the more they consumed junk food, the more negative effects it had on eating habit and health behavior. In addition, junk food consumption had an negative influence on health status directly and indirectly through eating habit and health behavior. Conclusions: The study results imply that school health education regarding proper eating habit should be implemented and that related policies should be established since complex individual, social, and environmental factors contribute to adolescents' eating habit.

• Journal of the Korean Society of Food Culture
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• v.8 no.4
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• pp.321-330
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• 1993

Effects of a short-period nutrition education program on the dietary behavior and the dietary intake were investigated in sixty nine healthy female college students. Questionnaires for general health information, character type, dietary behavior and dietary intake were answered by the subjects. All the subjects were participated in the nutrition education program which was carried out twice during the study. Subjects were divided into three groups according to their adiposity indices (AI), which are low AI (33 subjects), normal AI (31), and high AI (5). In the normal and the high AI group, the nutrition education program appeared to influence the dietary behaviors of the subjects significantly. However the program did not significantly influence the dietary intake of three groups, except PUFA ratio. It appears that a longer-period nutrition education program is required for influencing both the dietary behavior and the dietary intake of the subjects.

• Journal of the East Asian Society of Dietary Life
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• v.12 no.5
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• pp.343-351
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• 2002

This survey was conducted to investigate the dietary behavior and health status of Buddhist nuns. In this study, 100 Buddhist nuns in Seoul were selected. The dietary survey was focused on the diet in winter. The age distribution was as follows; 24% of the subjects were in their 20s, 45% in their 30s, 23% in their 40s, and 8% in their 50's and over, respectively. The percentage of the subjects living in temples close to the downtown area was 77% and the rest resided in areas remote to the downtown area. Over fifty percent of the subjects were satisfied with their diet at temple. And 59% of the subjects were eating a snack more than once a day. The snacks included fruits (60%), raditional tea (20%), coffee (9%), bread and cookies (4%), md rice cakes (3%), etc. Among food groups, the intake of green-vegetables and fruits were the highest and intake of milk and bean products were low which may cause calcium and protein deficiency. Most of the subjects believed that their health conditions were average or above average. About 50% of subjects didn't exercise at all. The frequencies of gastro-intestinal diseases and anemia were extremely high. About 50% of subjects took some form of medicine. To improve their health and nutritional status, it is required that they practice a good dietary behavior, maintain a balanced diet, and exercise regularly.

• Nutrition Research and Practice
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• v.6 no.1
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• pp.35-44
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• 2012

This study was conducted to assess improvements in nutritional status following the application of nutrition education to elderly patients in a long-term care hospital. The study was carried out from January to May 2009, during which a preliminary survey, a pretest, the application of nutrition education, and a post-test were applied in stages. The number of subjects at pretest was 81, and the number of participants included in the final analysis was 61 (18 men, 43 women), all of whom participated in both the nutrition education program and the post-test. The survey consisted of general demographic items, health behaviors, dietary behaviors, the Nutrition Screening Initiative checklist, and nutrient intake assessment (24 hour recall method). The nutrition education program lasted for four weeks. It included a basic education program, provided once a week, and mini-education program, which was offered daily during lunch times. The survey was conducted before and after the education program using the same assessment method, although some items were included only at pretest. When analyzing the changes in elderly patients after the nutritional education program, we found that, among subjective dietary behaviors, self-rated perceptions of health (P<0.001) and of depression (P<0.001) improved significantly and that dietary behavior scores also improved significantly (P<0.001), while nutritional risk levels decreased. In terms of nutrient intake, subjects' intake of energy, protein, fat, carbohydrate, calcium, phosphorus, iron, vitamin A, thiamin, riboflavin, niacin, and vitamin C all increased significantly (P<0.001). These results indicated that nutritional education is effective in improving the nutritional status of elderly patients. We hope that the results of this study can be used as preliminary data for establishing guidelines for nutrition management tailored to elderly patients in long-term care hospitals.