• Title/Summary/Keyword: dietary efficacy

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Factors affecting vegetable preference in adolescents: stages of change and social cognitive theory

  • Woo, Taejung;Lee, Kyung-Hea
    • Nutrition Research and Practice
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    • v.11 no.4
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    • pp.340-346
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    • 2017
  • BACKGROUND/OBJECTIVES: Despite the importance of consuming sufficient amounts of vegetables, daily vegetable intake among adolescents in Korea is lower than the current dietary recommendation. The objective of this study was to examine determinants affecting vegetable preference in order to suggest a stage-tailored education strategy that can promote vegetable consumption in adolescents. SUBJECTS/METHODS: Adolescents (n = 400, aged 16-17 years) from two high schools participated in a cross-sectional study. Survey variables were vegetable preference, the social cognitive theory (SCT) and stages of change (SOC) constructs. Based on vegetable preference, subjects were classified into two groups: a low-preference group (LPG) and a high-preference group (HPG). SOC was subdivided into pre-action and action/maintenance stages. To compare SCT components and SOC related to vegetable preference, chi-squared and t-tests, along with stepwise multiple-regression analysis, were applied. RESULTS: In the LPG, a similar number of subjects were classified into each stage. Significant differences in self-efficacy, affective attitudes, and vegetable accessibility at home and school were detected among the stages. Subjects in the HPG were mainly at the maintenance stage (81%), and there were significant differences among the stages regarding self-efficacy, affective attitudes, and parenting practice. In the predictions of vegetable preference, self-efficacy and parenting practice had a significant effect in the "pre-action" stage. In the action/maintenance stage, outcome expectation, affective attitudes, and vegetable accessibility at school had significant predictive value. In predicting the vegetable preference for all subjects, 42.8% of the predictive variance was accounted for by affective attitudes, self-efficacy, and vegetable accessibility at school. CONCLUSION: The study revealed that different determinants affect adolescent vegetable preference in each stage. Self-efficacy and affective attitudes are important determinants affecting vegetable preference. Additionally, school-based nutrition intervention that focuses on enhancing affective attitudes, self-efficacy, and vegetable exposure may constitute an effective education strategy for promoting vegetable consumption among adolescents.

The correlations among oral health education experience, oral health behavior, self-efficacy and subjective oral health level of elderly in some area (일부지역 노인의 구강보건교육 경험과 구강건강행위, 구강건강관리 자기효능감 및 주관적 구강건강수준과의 관련성)

  • So, Mi-Hyun;Cho, Youn-Young
    • The Journal of Korean Society for School & Community Health Education
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    • v.19 no.2
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    • pp.53-63
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    • 2018
  • Objectives: This study was intended to provide resources for the development and operation of the elderly's oral health education programs by comparing the difference of oral health behavior, oral health care self-efficacy and oral health levels according to their oral health education experiences and by researching the correlation of oral Health Behavior, self-efficacy, subjective oral health level and oral health education experience. Methods: An interview survey using structured questionaries was done on 180 senior citizens older than 65 years old residing in some areas of Gyeonggi-do from April 19 to May 25, 2018. The data was analyzed with Chi-square, t-test, spearman correlation coefficient with the use of SPSS 20.0. Results: 1. Those who are older than 75 years old and have higher levels of education and finance have more experiences of oral health education. 2. Those who have experiences of oral health education brush their teeth more than three times a day, use more oral health care items and get more regular preventive treatments such as oral examination and scaling. 3. As they has experiences of oral health education, their oral health behaviors, oral health care self-efficacy(tooth care, dietary control, regular checkup) and subjective oral health levels are high. Conclusion: It is necessary to try to improve the elderly's oral health levels by motivating the importance of oral health care and changing their oral health behaviors positively with the implement of oral health education on the elderly. Especially, oral health education programs that are operated on the elderly should be planned with practical programs that can cause the change of their oral health behaviors and should be processed to reinforce oral health care self-efficacy. Furthermore, preventive treatments for the elderly such as oral health education, oral examination and scaling should be implemented systematically and continuously by policy.

Cholesterol-lowering Efficacy of Unrefined Bran Oil from the Pigmented Black Rice (Oryza sativa L cv. Suwon 415) in Hypercholesterolemic Rats

  • Nam, Yean-Ju;Nam, Seok-Hyun;Kang, Mi-Young
    • Food Science and Biotechnology
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    • v.17 no.3
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    • pp.457-463
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    • 2008
  • The effects of dietary supplementation of the unrefined rice bran oil from 'Suwon 415' pigmented black rice (BRBO) on cholesterol metabolism and cellular antioxidant status were investigated in hypercholesterolemic rats. The significant reduction of total cholesterol (TC) and low density lipoprotein cholesterol (LDL-C) concentrations was observed in the plasma of rats fed BRBO. BRBO also decreased plasma and hepatic oxidative stress as a result of increased levels of hepatic thiobarbituric acid reactive substances (TBARS) levels associated with the elevations of hepatic superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GSH-Px) activities together with increased plasma level of tocopherol. This study indicates that dietary BRBO supplement can leads to the improvement of overall cholesterol metabolism and antioxidant status even more effectively than 'Chuchung' white rice (WRBO). Consumption of BRBO may also protect the liver from oxidative damage caused by lipid peroxidation.

The Medicinal Effects of Grains in ${\ulcorner}Dongeuebogam{\lrcorner}$ (${\ulcorner}동의보감(東醫寶鑑){\lrcorner}$에 수록된 곡물의 향약성(鄕藥性)에 관한 연구)

  • 백숙은
    • Journal of the East Asian Society of Dietary Life
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    • v.14 no.3
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    • pp.196-206
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    • 2004
  • The medicinal effects of 107 grains in $\boxDr$Dongeuebogam$\boxUl$ were studied for the development of healthy Korean traditional meal. Their efficacy, way of use, fact of taboo were mentioned in it. Grains were utilized and processed as tang(soup), jook(porridge), boonmal(powder), kunjo(drying), etc. Most of grains had sweet taste and mild nature(not hot and not cold) based on Eum-Yang-Oh-Haeng theory. The medicinal effects of grains described in $\boxDr$Dongeuebogam$\boxUl$ were the protection of stomach and intestine, enhancement of physical activity, protection of hair and skin, thirst elimination, treatment of several diseases, maintenance of health, etc.

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A Study of the Dietary Attitude, Dietary Self-Efficacy and Nutrient Intake among Middle School Students (청소년의 식생활태도, 식이 자기 효능감 및 영양소 섭취상태에 관한 연구)

  • 이정숙;하복자
    • Proceedings of the KSCN Conference
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    • 2003.05a
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    • pp.112-112
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    • 2003
  • 중학생의 체형인식과 식생활태도, 영양섭취 상태 및 식이 자기효능감을 조사하여 이들 간의 상호 관계를 알아보기 위하여, 경남 마산시, 진주시, 진해시에 소재하는 중학교 3개교를 선정하여 남녀 학생을 대상으로 설문지법을 이용하여 2002년 4월 8일부터 4월 22일 까지 조사를 실시한 결과는 다음과 같다. 남학생은 평균 신장이 161.8 cm, 평균 체중이 52.4 kg, 여학생의 평균 신장은 157.1 cm, 체중 47.9 kg이었고, 체중부족군에서는 23.9%, 정상군에서는 24.5%, 체중과다군의 57.1%, 비만군의 62.5%만이 스스로의 체격을 정확하게 인식하고 있었다. (중략)

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A Survey on Nutrition Attitude and Food Habit of Nationwide Middle School Student's Mothers (전국 중학생 어머니의 영양태도와 식습관에 관한 조사)

  • 김혜영
    • Journal of Nutrition and Health
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    • v.28 no.2
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    • pp.152-161
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    • 1995
  • The purpose of this study was to provide a baseline assessment and relationship of nutrition attitude and food habit among mothers of middle school students. Eighteen questions were developed to test nutrition attitude and food habit test was used to reflect dietary behavior. The questionnare was mailed to a representative sample of nationwide middle schools, and was asked to be answered by mothers of one class' students. Usable questionnares were recieved from 4,694 participants of 99 schools. The mean score of nutrition attitude was 65.9 out of minimum possible score 18 and maximum 90. Nutrition attitude was weaker in the areas of control and self-efficacy than in intention and outcome-expectation. The mean score of food habit was 38.6 out of minimum possible score 12 and maximum 60. Food habit was weaker in the areas of protein, vitamins & minerals and dietary fiber than in the other areas. Nutrition attitude and food habit scores were lower among rural, manually working, lower educated and low-income mothers. There was a significant correlation between nutrition attitude and food habit(r=0.37, p<0.001).

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Low Density Lipoprotein(LDL), Atherosclerosis and Antioxidants

  • Ryu, Beung-Ho
    • Biotechnology and Bioprocess Engineering:BBE
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    • v.5 no.5
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    • pp.313-319
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    • 2000
  • A crucial and causative role in the pathogenesis of atherosclerosis is believed to be the oxidative modification of low density lipoprotein (LDL). The oxidation of LDL involves released free radical driven lipid peroxidation. Several lines of evidence support the role of oxidized LDL in atherogenesis. Epidemiologic studies have demonstrated an association between an increased intake of dietary antioxidant vitamins, such as vitamin E and vitamin C and reduced morbidity and mortality from coronary artery diseases. It is thus hypothesized that dietary antioxidants may help prevent the development and progression of atherosclerosis. The oxidation of LDL has been shown to be reduced by antioxidants, and, in animal models, improved antioxidants may offer possibilities for the prevention of atherosclerosis. The results of several on going long randomized intervention trials will provide valuahle information on the efficacy and safety of improved antioxidants in the prevention of atherosclerosis. This review a evaluates current literature involving antioxidants and vascular disease, with a particular focus on the potential mechanisms.

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The Weight Control-Related Attitudes, Dietary Self-Efficacy and Eating Behaviors according to the Perception of Eating Disorder and Obesity Index in Dancing Major High School Girls (무용전공 여고생에서 섭식장애 인지와 비만도에 따른 체중조절 태도 및 식이 자기효능감, 섭식행동)

  • Seok, Hae-Koung;Her, Eun-Sil
    • Korean Journal of Community Nutrition
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    • v.14 no.4
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    • pp.383-391
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    • 2009
  • This study was performed in order to compare the differences in dietary self-efficacy and eating behaviors as well as the relationship of weight control attitudes according to eating disorder perception and obesity index for high school girls majoring in dance. Almost half (45.5%) of the subjects perceived eating disorders, and the rate of underweight group was 45.7%. Forty-four percent of the group that perceived eating disorders were in modern dance, while 55.0% of the group that did not perceived eating disorders were in Korean dance (p < 0.05). For the obesity index, a similar rate was shown between the different types of dance for the underweight group, but in the normal group, 54.5% were in Korean dance (p < 0.05). Most (82.0%) of the group that perceived eating disorders had fears on obesity, while only 53.3% of the non-perceiving group had fears on obesity (p < 0.01). Over half (58.3%) of the underweight group had fears on obesity, while 77.2% of the normal group showed fear in that (p < 0.05). For necessity of weight loss to do dance performances, 25.0% of the underweight group and 57.9% of the normal group need that (p < 0.05). Most of the group that perceived eating disorders (92.0%) answered that they had experience in very low calorie diets, while only 40.0% of the non-perceiving group had experience (p < 0.001). For necessity of calorie education, 42.0% of the group that perceived eating disorders and only 20.0% of the non-perceiving group answered is needed (p < 0.05). For eating behavior, the group that perceived eating disorders had lower total scores compared to the non-perceiving group (p < 0.001), The group that perceived eating disorders showed lower scores for restraint eating (p < 0.01) and emotional factors (p < 0.001) except by external eating. This study showed that high school girls majoring in dance have high interest in weight control and problems with wrongful body images and eating behaviors, as well as need for calorie education were suggested. Thus, it is necessary to develop and execute a proper weight control education program for the subjects. (Korean J Community Nutrition 14(4) : 383${\sim}$391, 2009)

Analysis of Dietary Characteristics of Participants Attending the Nutrition Education Program for Hypertensive Patients at a Public Health Center (보건소 고혈압 영양교육 참여자의 식생활 요인 분석)

  • Im, Gyeong-Suk;Han, Mun-Hwa;Gang, Yong-Hwa;Park, Hyei-Ryeon;Kim, Chan-Ho
    • Journal of the Korean Dietetic Association
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    • v.6 no.2
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    • pp.125-135
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    • 2000
  • Hypertension is a well-known degenerative disease whose prevalence rate increases with age. Management of high blood pressure is a critical concern in preventive strategies to reduce the morbidity and mortality for cardiovascular disease. The purpose of this study was to examine the dietary characteristics of hypertensive program participants, and to establish strategies based on their nutritional needs. Hypertensive patients were enrolled in the program in a public health center or in a local elderly center, at Suwon, in 1999-2000. Trained dietitians interviewed 62 enrollees(24-hour recall) and related variables. Mean body mass index of the subjects was 25.0kg/m². 30.7% of the subjects had a family history of hypertension. The majority of them ate regularly and partook of all available side dishes. They consumed grains and vegetables regularly, but seldom ate dairy products or food prepared with oil. Male enrollees frequently consumed more processed food and animal fat than did female enrollees(p<0.05). An analysis of the percentage of RDA(Recommended Dietary Allowances of Korea 1995) showed that but for ascorbic acid, enrollees consumed nutrients below the RDA. The food group intake pattern was not diverse, thus only 8.1% of enrollees consumed all food groups in a day. An analysis of eating attitude showed that 64.5% of enrollees always added salt to beef soup. Male enrollees showed low food-related self-efficacy compared to female enrollees, especially with reference to reduction of instant food intake(p<0.01), increase in vegetable intake(p<0.01), reduction of monosodium glutamate(MSG) intake(p<0.01). and not overeating(p<0.05). Their perceived barriers for participating in hypertension nutrition programs included lack of time, program necessity non-recognition, and program comprehension difficulty. These results suggest that nutrition education program necessity non-recognition, and program comprehension difficulty. These results suggest that nutrition education programs for community hypertensive patients should focus on increasing participant consumption of foods, expecially dairy products, and desirable eating attitudes. It also suggests that the program should consider should consider encouraging self-efficacy in changing eating behavior.

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Repair of Iron Deficiency in Rats by the Intake of Recombinant Yeast Producing Human H-ferritin (훼리틴 생산 재조합 효모의 철분 결핍성 빈혈 개선 효과)

  • Hwang Eun-Hee
    • Journal of the East Asian Society of Dietary Life
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    • v.16 no.1
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    • pp.93-98
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    • 2006
  • This study examined whether or not the iron that is accumulated in the recombinant microbes that produce ferritin is bioavailable to rats with iron deficiency. Rats induced with iron deficiency were treated with iron preparations of $Fe(NH_4)_2(SO_4)_2$, horse spleen ferritin, control yeast, and ferritin-producing recombinant yeast for 14 days. The bioavailability of iron was examined by measuring hemoglobin concentration, hematocrit value, and tissue iron stores. Differences between dietary groups were determined by one-way ANOVA, at the level of significance p<0.05. Based on hemoglobin concentration and hematocrit value, iron in $Fe(NH_4)_2(SO_4)_2$, horse spleen ferritin, and ferritin-producing yeast were bioavailable in rats and cured iron deficiency. The efficacy of ferritin and ferritin-producing yeast was confirmed in establishing tissue iron stores after the induction of iron deficiency. The iron sources of ferritin and the ferritin-producing yeast seemed to be as effective for the recovery from iron deficiency as the iron compounds of ferric citrate and ferrous ammonium sulfate. The results suggest that the iron stored in ferritin of the recombinant yeast is bioavailable, and that the recombinant yeast may contribute widely as a source of iron to resolve the global problem of iron deficiency.

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