• Korean Journal of Community Nutrition
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• v.29 no.1
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• pp.16-33
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• 2024

Objectives: The purpose of this study was to examine mothers' knowledge levels on complementary foods and their perception of convenience complementary foods. Methods: An online survey was conducted with mothers aged 20-49 years who had purchased convenience complementary foods and had a preschool child aged 4 months or older. The respondents were categorized into 3 groups based on their knowledge scores: low- (0-50 points), mid- (55-65 points), and high- (70-100 points) knowledge groups. Results: The average score of mothers' knowledge on complementary foods was 58.8 out of 100 points. Working mothers were found to have lower levels of knowledge compared to mothers who were housewives. Only 1/4 of responding mothers had educational experience on complementary foods. Mothers expressed a desire for information on the types of complementary foods (72.2%) and the intake amounts (60.3%) corresponding to each phase of their child's development. Multivariate analysis of variance revealed significant differences in health (P = 0.002), variety (P = 0.039), and hygiene (P = 0.041) among the factors taken into consideration when purchasing convenience complementary foods according to the mothers' knowledge levels. Mothers in the high-knowledge group placed a greater importance on 'balanced nutrition' (P = 0.022) and 'hygienic cooking' (P = 0.010) compared to mothers in the low-knowledge group. The results of the modified importance-performance analysis, which compared the importance and performance of the factors taken into consideration when purchasing convenience complementary foods, highlighted the need for efforts in 'health,' 'hygiene,' and 'price,' while also indicating an excessive effort in 'convenience.' Conclusions: This study suggests expanding relevant education programs to enhance mothers' knowledge on complementary foods, especially for working mothers. In the industry, marketing strategies for complementary food products could be developed that align with the needs of mothers, focusing on health, hygiene, and price.

• Journal of the Korean Society of Food Culture
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• v.9 no.2
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• pp.159-170
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• 1994

Central commissary school foodservice operations' practices and their dietitians' job duties were assessed and compared with those of their counterpart of conventional school foodservice operations to find out strategies for early settlement and better management for commissary system. Survey qestionnaires consisted of general background, employees' work schedule and dietitians' job duties. 12 commissary schools(out of 22 existing in Korea) and 77 conventional schools from Kyungkido were participated in the survey. The results of this study can be summarized as follows: 1. Central commissary school foodservice was presently utilized at 5 schools from islands type, 11 schools from rural type, and 6 schools from urban type, consisting total of 22 commissary schools, and 52 satellite schools. 2. Dietitians were evenly employed with their experiences, 55.5% were those with less than 2 years of experience, 44.6% were those with more than 2 years of experience. 3. Commissary schools employed more full-time empolyees$(1.8{\pm}0.7)$ than conventional schools$(0.3{\pm}0.5)$, however as far as the production capacity was concerned, only the part-time employees played significant roles(p<.01). Regardless of the number of students, an absolute number of full-time employees were employed, and their duties were not carried out efficiently. The part-time employees of commissary schools performed more loaded work compared to their counterparts in conventional schools. 4. Out of the dietitians' foodservice duties, 'basic food service production$(3.9{\pm}0.7)$' were carried out adequately, whereas 'nutrition education and advertisement$(2.5{\pm}0.6)$' and 'administrative affairs and information related duties$(2.8{\pm}0.9)$' were not. In order to enhance their working capacity, systematic organizational reforms are imminent. 5. Survey results also showed that dietitians performed less duties at satellite school than at the central commissary. This indicates more systematic foodservice management practices are urgently needed.

• Journal of the Korean Dietetic Association
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• v.23 no.4
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• pp.431-452
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• 2017

This study was conducted to investigate the effect dietitians' perceived organizational culture has on organizational commitment at hospital foodservices. A total of 382 dietitians working at general hospitals with 500 beds or more participated in the survey from January 16 to February 8, 2017. The result of perceived organizational culture showed hierarchical culture, rational culture, development culture, and group culture scored to be 5.29, 5.25, 5.15, and 4.97 out of 7, respectively. Differences in the perception of organizational culture and organizational commitment were observed according to the general demographics of subjects, but no significant differences were shown according to the general characteristics of hospitals. For organizational commitment perception, affective commitment (5.14), normative commitment (4.41), and continuance commitment (4.21) were identified. There were differences according to age, work experience at the present job, position, and education level by type of organizational culture. In terms of organizational commitment, there were significant differences in age, work experience at the present job, employment status, and possession of clinical dietitian certificate, position by type of commitment. A positive correlation between dietitians' perceived organizational culture and organizational commitment such as overall organizational commitment, affective commitment, and normative commitment was observed (P<0.01). Group culture, development culture, and hierarchical culture positively affected overall organizational commitment (P<0.001). Development culture, group culture, and hierarchical culture had positive effects on affective commitment, whereas rational culture had a negative influence. Development culture (P<0.05), group culture (P<0.001), and hierarchical culture (P<0.01) positively influenced normative commitment. Results suggest that it is necessary to develop plans for the improvement of rational culture, group culture, and development culture at hospital foodservice organizations.

• The Korean Journal of Food And Nutrition
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• v.35 no.3
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• pp.167-177
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• 2022

The purpose of study was to examine the factors influencing fast food consumption in Korean adolescents. The analysis was conducted using cross sectional study data from the 16^th Korea Youth Risk Behavior Web-based Survey in 2020. A total 54,948 middle and high school students participated in this study. The subjects in the analysis were 28,353 males and 26,595 females, 28,961 middle school and 25,987 high school students. In total, 56.6% Korean adolescents consumed fast food once or twice weekly and 25.4% consumed fast food more than three times weekly. Logistic regression analysis revealed that fast food consumption was significantly associated with dietary behavior such as lower breakfast intake (OR: 0.930, 95%CI: 0.891~0.970, p<0.001), higher soda drinks consumption (OR: 2.563, 95%CI: 2.452~2.678, p<0.001), and higher sweet drinks consumption (OR: 1.898, 95%CI: 1.818~1.982, p<0.001). For psychological and health behavior factors, fast food consumption was also significantly associated with higher perceived stress (OR: 1.239, 95%CI: 1.163-1.321, p<0.001), higher smoking (OR: 1.300, 95%CI: 1.164~1.453, p<0.001), higher drinking (OR: 1.193, 95%CI: 1.112~1.280, p<0.001), higher depression experience, higher loneliness experience, and lower subjective health, In conclusion, fast food consumption in Korean adolescents was associated with undesirable dietary habits and psychological and health behavior, suggesting that appropriate education programs are necessary to reduce such behavior.

• Korean Journal of Exercise Nutrition
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• v.23 no.1
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• pp.1-6
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• 2019

[Purpose] To date, there have been no studies on the response of wrist tremor to increased muscle activity during exercise. This study aimed to evaluate the wrist tremor response with increasing muscle activity during bench press exercise. [Methods] Triceps muscle activity and wrist tremor response were measured by electromyography and an accelerometer, respectively, during bench press exercise in 11 healthy men without weight-training experience. Subjects performed bench press at 30% repetition maximum (RM), and the rating of perceived exertion (RPE) and lactate concentration were measured before and after exercise. One week later, an equivalent number of bench presses at 30% RM was performed without weight load as a control trial (CT). [Results] RPEs and lactate concentrations significantly increased after resistance exercise (30% RM) from 7.4 to 14.3 and 1.7 to 4.9, respectively (P<.01), but no such difference was observed in the CT. Muscle activity linearly increased during the 30% RM exercise, and wrist tremors were shown to linearly decrease. A strong negative correlation was observed between the two variables (r=-0.88, P<.001). [Conclusion] We found that wrist tremors during resistance exercise, as measured using an accelerometer, can be used to predict muscle activity.

• The Korean Journal of Food And Nutrition
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• v.21 no.4
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• pp.562-571
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• 2008

The principal objective of this study was to assess dietitian's awareness and performance with regard to food suppliers' selection guidelines and purchase guidelines for the receipt of safe food materials. A questionnaire was administered to 203 dietitians working at an elementary school in Gyeonggi North province, and 190 responses were ultimately returned. Excluding responses with incomplete answers and significant missing data, 161 responses(79.3%) were ultimately utilized for data analysis. We determined that meat/poulty and seafood were purchased mainly by manufacturer's branch(59.8% and 78.3%), and processed food and kimchi were generally purchased by producer's cooperatives(47.7% and 44.9%). 78.3% of the contracts were made via informal purchasing and the frequency of contracts was less than 3 times per year(53.4%). Market studies were conducted individually(54.7%), and by group(47.2%). Dietitian and parents volunteered(50.3%) or dietitians, and school and foodservice staffs(45.3%) participated - together in receiving and inspection. School contracted with $4{\sim}5$(39.1%) and $6{\sim}8$ food suppliers(29.8%). Dietitians(42.3%) or school councils(40.2%) evaluated food suppliers once per semester(60.2%). The majority of dietitians(96.3%) conducted sanitary education for food suppliers once per semester (68.3%). All 13 guidelines which were usually used to evaluate food suppliers were thought to be important(more than 4) based on a 5 scale(1: never important, 5: very important). Among them, 'sanitary storage status of food products(4.85)', 'have a chill car(4.83)' and 'proper control of refrigerator, freezer and storage room(4.81)' were the most crucial guidelines. As dietitians evaluated food supplier's-observances of 13 guidelines, 'have a chill car(4.89)', 'hold medical examination of employees(4.89)' and 'hold liability insurance for handling product(4.80)' were fulfilled relatively well. The guidelines for conducting education for their employees(4.45) and keeping their establishment and equipment sanitary(4.79) were important, but were not observed well(3.39 and 3.37). Additionally, the difference between the importance and the observance score of the 'HACCP certificate' were fairly significant(4.44 and 3.54). Dietitians tended to report that purchasing management related to the removal of foodborne illness factors(4.71), return confirmation(4.50) and purchase specification(4.32) were important. The difference between importance and performance was highest in the process of changing food suppliers when the contracts were violated more than three times. Dietitian's age, education work experience and employment type had no observable effects on how important they considered purchase management to be, but their work experience significantly affected performance in terms of the removal of foodborne illness factors(p<0.05). As supplier management is the most critical factor, it is clearly desirable to educate suppliers at specialized training centers and to supervise suppliers in accordance with the established sanitary guidelines.

• Korean Journal of Community Nutrition
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• v.3 no.2
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• pp.281-291
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• 1998

Job analysis was done by the method of interview and survey to find out the human attributes needed for dietitans' job performance. The knowledge, skills, abilities and other characteristics including personality were major items in the questionnaire. The questionnaire was distributed to 340 schools and hospital dietitians. Among these, 201 were compeletely filled out, returned and statistically analyzed according to the frequency scale and importance scale respectively. The results were as follows : 1) The age, education, job experience and monthly pay of hospital dietitians were higher than those of school dietitians. This was partly due to the reflection of short chronicle of school foodservice. 2) The most important human attributes for rwo groups were commonly shown as sincere and faithful personality, good human relationship and responsibility for business outcome. 3) Computer skill and menuplanning ability were human attributes of the most frequently used by school dietitians, whereas knowledge of diet therapy, clinical nutrition, and pathology of disease were frequently used by hospital dietitians. 4) The correlation coefficients between two groups were as follows : Spearman's rho value of personality, skills and abilities, and knowledge were 0.806, -0.432,-0.203 respectively, according to the importance scale. 5) An overall view from t test between two groups, various human attributes, especially knowledge were more frequently used by hospital dietitians.

• Journal of the Korean Society of Food Science and Nutrition
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• v.27 no.3
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• pp.543-552
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• 1998

A sruvey was conducted to investigate the consumer perception of farm products and processed foods, and to figure out the future direction of food supply system to satisfy the consumer need. From the citizens in Taegu area, 532 housewives were selected as sample subjects by stratified random sam-pling procedure. The main criteria of consumers for purchasing farm products was quality and the main reason for purchasing imported products was cheap price(48.9%). Most of consumers(87%) thought that food safety of farm products was not belong to safe level. Consumers(79.7%) perceived that the labeling system for the place of origin and for the quality are necessary, but they did not have confidence in the current label. Nearly all the subjects(93.6%) were concerned about the hazardness of residual chemicals of imported products, desired the rigorous inspection system for imported products. Consumers in Taegu area had confidence in processed foods in the following order; farmerbrand-product(0.9%), government-authorized farm product(30.0%) and agricultural cooperative association product(26.4%). However, only 73.6% of the consumers had the experience to purchase farmers' processed foods. As a conclusion, it appeared that nutrition education for consumers on food-decision making is strongly required for the substantial segment of population who are still ignorant of safety of imported product and food distribution system.

• The Korean Journal of Community Living Science
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• v.17 no.2
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• pp.89-103
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• 2006

This study was performed to provide sources of nutrition education for female adolescents by identifying eating disorder patterns and their relationships with self-body image, weight control, and eating behavior. A total of 329 female middle school students were recruited and completed a general characteristics survey, the Eating Attitudes Test(EAT-26), a perception of self-body image survey, a concern for weight control survey, an eating behavior survey, and the Mini Dietary Assessment Index(MDA). Eating disorder patterns were identified to be obesity stress and weight control(OW), risk of binge eating(RB), and dietary restraint(DR) by factor analysis. OW pattern was related with stout body shape, body dissatisfaction, experience of weight control, skipping of dinner, and low MDA score. RB pattern was associated with lean body shape, body satisfaction, indiscreet snack behavior, and the eating time of snacks. The DR pattern was associated with normal body shape, regular meal times, desirable snack behavior, and high MDA scores. The results indicated that the eating patterns of adolescent were not identical to existing diagnostic categories. Furthermore, each eating pattern displayed different characteristics of perception on self-body image, concern for weight control, and eating behavior. In conclusion, nutrition education for female middle school students could reflect the different characteristics of each eating disorder pattern.

• Journal of muscle and joint health
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• v.18 no.1
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• pp.63-72
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• 2011

Purpose: The purpose of the study was to identify the amount of calcium intake during late pregnancy and breastfeeding and compare the differences in the amount of calcium by subjects' characteristics. Methods: With a descriptive survey design, 121 Korean breastfeeding women were recruited in a community setting. The list of foods and drinks with calcium extracted from the study of Song and So (2007) was used to measure the amount of calcium intake during pregnancy and lactation. The subjects' characteristics were collected to identify differences in the amount of calcium intake. Results: Mean age of the women was 31 years old. Amount of calcium intake was 568mg per day during late pregnancy and 431mg per day during breastfeeding. These amounts were quite lower than a recommended dose that adult women should consume a daily minimum of 1,000mg of calcium. Women who had higher household income and attending experience for nutritional education took more calcium during breastfeeding and late pregnancy, respectively. Conclusion: More than a half of the breast-feeding women do not consume the recommended dose of calcium. Education for proper calcium consumption during pregnancy and lactation should be an additional subject in the prenatal and breastfeeding education program for women's bone health.