• Nutrition Research and Practice
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• 제4권4호
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• pp.283-289
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• 2010

This study investigated the effect of coffee intake and exercise on the antioxidative activity and plasma cholesterol profile of physically trained rats while they were exercising. Forty eight rats were under either the control diet with water (C) or control diet with coffee (CF) and at the same time they were given physical training for 4 weeks. In terms of physical training, the rats were exercised on a treadmill for 30 minutes everyday. At the end of 4 weeks, animals in each dietary group were subdivided into 3 groups: before-exercise (BE); during-exercise (DE); after-exercise (AE). Animals in the DE group were exercised on a treadmill for one hour, immediately before being sacrificed. Animals in the AE group were allowed to take a rest for one hour after exercise. TG levels were significantly high in coffee intake group than in control group. Also TG level of AE group was significantly higher than that of BE group. Exercise and coffee-exercise interaction effects were significant in total cholesterol (P = 0.0004, 0.0170). The AE of coffee intake group showed highest total cholesterol levels. HDL-cholesterol was significantly lower in coffee intake group than in control group. Coffee, exercise, and coffee-exercise interaction effects were significant in SOD (P = 0.0001, 0.0001, and 0.0001). The AE and BE of coffee intake group showed higher SOD levels than the other four groups. Catalase activities were significantly higher in coffee intake group than control group. No significant main effect was found in GSH/GSSG. Coffee, exercise, and coffee-exercise interaction effects were significant in MDA levels (P = 0.0464, 0.0016, and 0.0353). The DE and AE of coffee intake group and the DE of control group showed higher MDA levels than the BE of control group. Therefore, coffee intake can promote activities of antioxidant enzyme but it also increases MDA and decreases HDL-cholesterol in physically trained rats.

• Journal of Radiation Protection and Research
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• 제34권4호
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• pp.184-189
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• 2009

중수로원전의 방사선작업종사자는 방사선작업 종료 후에 뇨시료를 제출하여 공기중 삼중수소의 섭취에 따른 내부피폭 선량을 평가하고 있다. 이 경우 종사자가 제출한 뇨시료는 삼중수소가 체내에서 평형에 도달한 대표시료(Representative sample)라는 전제를 필요로 한다. 국제방사선방호위원회(ICRP)의 간행물과 삼중수소의 인체평형에 대한 캐나다의 실험결과에 의하면 체내로 유입된 삼중수소는 약 2-3시간 후에 평형에 도달한다고 기술하고 있다. 그런데 원전에서는 계획예방정비기간 동안 일시에 많은 작업이 진행되고 빈번한 종사자의 출입으로, 방사선작업 종료 후 제출하는 뇨시료는 섭취 후 평형에 도달하는 약 2시간 경과 이전에 제출하거나, 지연하여 제출하는 경우가 발생할 수 있다. 따라서 이 논문에서는 방사선작업 종료 후 종사자가 제출하는 시간대별 뇨시료 중의 삼중수소 농도를 측정하였고, 이를 근거로 체내 삼중수소의 농도에 대한 변화추이와 선량평가에 미치는 영향을 분석하였다. 그 결과 종사자의 뇨시료는 대부분 삼중수소 섭취 후 2시간 정도에 신체 내에서 평형에 도달하는 것으로 확인되었다.

• 한국식품영양학회지
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• 제29권2호
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• pp.275-282
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• 2016

Recently, increased caffeine intake has led to an increase in caffeine addiction and withdrawal symptoms. Coffee is surreptitiously consumed in as an additive to milk and caramel. There are few studies on how coffee affects the health of modern people. The purpose of this study is to determine the efficacy and side effects of coffee by awareness of coffee consumption patterns among college students, who are the principal consumers. A survey was conducted from May 11 to 17, 2015 and 302 questionnaires were analyzed. The respondents were 140 men (46.4%) and 162 women (53.6%). In terms of coffee additives, 151 (50.0%) respondents chose 'americano' and 111 (36.8%) 'variation'. The frequency of coffee intake and sleep time for college students was negatively correlated, with the correlation coefficient of -0.145 and significance probability of 0.019. The group that was 'positively' aware of the principal ingredients of coffee had a higher level of academic training than those with 'negative' awareness (p=0.000). Women recognized a larger number of side effects than men: 1.99 and 1.36, respectively, on average (p=0.001). 'Time for consumption' had statistically significant effects on the side effects of coffee consumption: consumption before/after lunch, before/after supper and before going to bed led to 0.4 times (p=0.048) and 0.3 times (p=0.023) more side effects, respectively, than consuming coffee after getting up and before/ after breakfast. Excessive caffeine intake through coffee led to limited sleep time and poorer learning concentration. The guidelines for proper coffee consumption should be created to help students consume coffee properly so that it will not affect sleep, learning concentration or adversely affect health.

• 여성건강간호학회지
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• 제29권4호
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• pp.291-301
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• 2023

Purpose: This study aimed to investigate the current status of effective folic acid intake and the level of folic acid knowledge of Chinese pregnant women and to analyze the relationship between effective folic acid intake and folic acid knowledge. Methods: From November 2021 to May 2022, 140 pregnant women at Yantai Yuhuangding Hospital in the Chinese province of Shandong, answered questions about their general characteristics, folic acid intake, and folic acid knowledge. The data were analyzed using the t-test, chi-square test, and logistic regression analysis, and were presented with frequency with percentage or mean±standard deviation. Results: Only 16.4% of the pregnant women (n=23) took folic acid effectively, using the following four criteria. Of all pregnant women who took folic acid, 72.2% took folic acid starting 1 month before pregnancy, 70.8% took folic acid up to 3 months after pregnancy, 36.8% took 400 ㎍ every time, and 78.6% took folic acid more than 24 days every month. The score for folic acid knowledge was relatively high (5.61±2.18 on a scale of 0-9). A higher folic acid knowledge score correlated with more effective folic acid intake (t=4.10, p<.001). Conclusions: Our study shows that the current recommendations to prevent neural tube defects through effective folic acid intake supplementation are not being fully implemented in China. Furthermore, folic acid knowledge was positively correlated with the effectiveness of its intake. Future education related to effective folic acid intake should emphasize the four methods of effective folic acid intake, especially regarding the recommended dose of 400 ㎍ every time.

• Journal of Korean Biological Nursing Science
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• 제6권1호
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• pp.43-52
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• 2004

Purpose : The purpose of this study was to find effects of early oral water intake on thirsty feeling, nausea, and vomiting after ambulatory surgery. Method : Sixty patients who received PET(Pressure Equalizing Tube) insertion surgery under general anesthesia were conveniently sampled and divided into two groups. Experimental group was instructed to drink water after two hours and control group was directed to intake water after three hours postoperatively. Data were collected from May 1, 2002 to August 31, 2002 at ambulatory surgery center of Asan Medical Center. The thirsty feeling, nausea and vomiting score between experimental and control group were compared at the time of recovery, recovering consciousness, 2hr, 3hr, right before discharge and/or 24hr(telephone interview) postoperatively. The collected data were analyzed by SPSS 8.0 statistic program. Result : Result of this study are as follows. 1) There was a statistically significant difference(t=-10.31, p=0.00) in the occurrence of thirsty feeling at the 3hr postoperatively between experimental and control groups. 2) There was a statistically significant difference($x^2=6.66$, p=0.02) in the incidence of nausea during the 2hr postoperatively between experimental and control groups. 3) There was no difference($x^2=0.35$, p=0.55) between groups in vomiting scores. Conclusion : It was generally known that the delay of oral water intake decreases post operative complications. But, this study shows that early oral water intake decreases discomfort of thirsty and there was no adverse effects on the occurrence of postoperative nausea and vomiting.

• 대한지역사회영양학회지
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• 제13권3호
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• pp.426-438
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• 2008

The purpose of this study was to examine bowel habits, dietary habits, and nutrient intake of constipated adults, and the effects of prune products on relieving constipation symptoms. Fifty one adults with self-reported constipation (mean age 23 years, range 19-41 years, 10 males and 41 females) participated in this study. After a baseline survey on bowel habits and dietuy habits, participants were asked to consume at least 50 g of prune and 200 ml of prune juice per day during a 4-week period in addition to usual diet. Nutrient intake was estimated by a 24 hour recall at the baseline and once every week by diet records during the intervention. Data were analyzed after classifying the subjects into mild constipation group and severe constipation group by the severity of the symptoms. During the intervention, the subjects with mild constipation consumed 56 g of prunes (about 5.6 fruits) and 200 ml of prune juice, and the subjects with severe constipation consumed 59 g of prunes (about 5.9 fruits) and 207 ml of prune juice. Average intakes of energy, dietary fiber and water of the subjects in the mild constipation and severe constipation group increased during the intervention compared to the baseline. Average dietary fiber intake of the mild constipation and severe constipation groups significantly increased from 12.5 g and 11.6 g at the baseline to 18.5 g and 16.8 g after consuming prune products, respectively. These changes were accompanied by an increase in the number of bowel movements, a decrease of defecation time, a change to a softer stool consistency, and a decrease of abdominal pain during defecation. Seventy two subjects answered that prune products were effective to improve their overall constipation symptoms. Our data show that supplementation of prune products is effective to provide energy, dietary fiber and water, and to relieve constipation symptoms for constipated adults.

• International Journal of Advanced Culture Technology
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• 제8권1호
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• pp.1-12
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• 2020

Pierre Robin syndrome is characterized by micrognathia, glossoptosis, and cleft palate. Infants with Pierre Robin syndrome causes feeding difficulty, upper airway obstruction, and other symptoms. This study aims to examine the effects of applying dysphagia treatment to infants with Pierre Robin syndrome. The study participant was an infant who was born four weeks premature and referred for dysphagia treatment approximately 100 days after birth. At the initial assessment, the infant showed oral sensory sensitivity, a high level of facial and masticatory muscle tension, and a low stability of the chin and cheeks with almost no normal "sucking-swallowing-breathing" pattern. We set the baseline period and intervention period using the AB design. During the baseline period, non-nutritive sucking training using a rubber nipple was conducted without implementing an oral stimulation intervention. During the intervention period, non-nutritive sucking training and an oral stimulation intervention were performed. After the intervention period, the infant's daily oral intake and oral intake per time significantly increased compared to that during the baseline period. We observed that the oral intake time of the infant decreased during the intervention period compared to that in the baseline period, which indicated an improvement in control over the chin, tongue, and lip movements, a change in muscular tension, and stabilization of the "sucking-swallowing-breathing" pattern. We provided dysphagia treatment before breastfeeding, it was positive effects such as normal development of the infant, transition from tube feeding to bottle feeding, and enhancement of overall oral motor function.

• Journal of Advanced Marine Engineering and Technology
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• 제30권1호
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• pp.42-49
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• 2006

In this research. the diesel cycle was thermodynamically interpreted to evaluate the possibility of high efficiency by converting diesel engines to the high expansion diesel cycle, and general cycle features were analyzed after comparing these two cycles. Based on these analyses. an experimental single cylinder a long stroke with high expansion-diesel engine. of which S/B ratio was more than 3, was manufactured. After evaluating the base engine through basic experiments, a diesel engine was converted into the high expansion diesel engine by establish VCR device and VVT system Accordingly, the high expansion diesel cycle can be implemented when the quantity of intake air is compensated by supercharge and the effective compression ratio is maintained at its initial level through the reduction of the clearance volume. In this case, heat efficiency increased by $5.0\%$ at the same expansion-compression ratio when the apparent compression ratio was 20 and the fuel cut off ratio was 2. As explained above, when the atkinson cycle was used for diesel cycle, heat efficiency was improved. In order to realize high expansion through retarding the intake value closing time, the engine needs to be equipped with variable valve timing equipment, variable compression ratio equipment and supercharged pressure equipment. Then a high expansion diesel cycle engine is realized.

• 대한영양사협회학술지
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• 제7권1호
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• pp.72-79
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• 2001

The purpose of this study is to investigate the dietary intakes and nutritional status in total gastrectomized patients. We assessed the nutritional status by dietary intake, anthropometric data and biochemical data. And we also checked the subjective postprandial symptoms and gastrofiberscopy to detect the reflux esophagitis in 22 patients who were free of tumors for more than 1 year after total gastrectomy by the three different reconstruction methods(Loop esophagojejunostomy with A-loop tie/ Roux-en-Y esophagojejunostomy/Roux-en-Y esophagojejunostomy with Paulino pouch). Any patients were not in malnutrition status in respect to biochemical data. By assessing the dietary intake, the average daily calorie intake was 1848.2$\pm$440.2kcal, it was 105.9$\pm$23.8% of energy requirement. But there was weight loss in 21 patients of 22 patients after operation and the weight loss was 12.8% of preoperative weight(61.0$\pm$7.9 vs. 53.5$\pm$6.7kg, preoperatively vs. at the time of study). This may suggest that continuous nutritional care is necessary after total gastrectomy to promote sufficient calorie intake, keeping good nutritional state. There were no significant differences between the methods of reconstruction and dietary intakes or nutritional status. Endoscopic esophagitis was more frequently found in patients of loop esophagojejunostomy than any other reconstruction methods(p<0.001), but it didn't show any effect on the dietary intakes.

• Journal of Nutrition and Health
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• 제43권6호
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• pp.597-606
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• 2010

본 연구에서는 채소와 과일 섭취 증진을 위한 영양교육이 행동변화단계의 진전에 따라 사회심리적요인에 변화를 초래하는지 파악하고자 초등학생을 대상으로 영양교육을 실시한 후 행동전단계를 두 단계로 나누어 이 두 단계 아동들의 채소와 과일 섭취의 장점과 단점에 대한 인지, 인지적 행위적 변화과정, 자아효능감의 수준 변화를 조사하였다. 충남 연기군의 한 초등학교 5학년 아동 71명에 대한 설문 조사에 의해 행동전단계 (고려전, 고려, 준비)로 분류된 47명을 대상으로 2007년 11월 19일부터 12월 24일까지 6주 동안 채소와 과일섭취 영양교육을 실시하고 교육전과 후에 사회심리적요인의 수준을 설문지법에 의해 조사하였다. 1) 영양교육 후 채소섭취의 장점에 대한 인지도 점수는 고려전단계나 고려 및 준비단계에 속한 대상자 모두에서 증가하였고, 단점에 대한 인지도 점수는 두 단계 모두에서 감소하였다. 그러나 과일섭취에 있어서는 장점에 대한 인지도 점수에서는 고려전단계와 고려 및 준비단계 모두에서 교육 후 변화가 없었으나, 단점에 대한 인지도 점수는 고려전 단계에 속한 대상자에서만 유의적인 감소가 나타났다 (p < 0.01). 채소섭취에 대한 장점과 단점에 대한 인지 개선 영양교육은 두 단계 모두에서 효과적이었다. 2) 영양교육 후 채소섭취의 인지적 변화과정에서는 고려전단계의 대상자에서 의식향상 (p < 0.001)점수가 증가되었고, 고려 및 준비단계에 속한 대상자에서는 걱정해소 (p < 0.01), 자기재진단 (p < 0.05), 환경재평가 (p < 0.01), 사회규범변화(p < 0.05) 등 여러 변수의 점수가 증가하였다. 과일섭취의 인지적 변화과정에서는 고려전단계에 있는 대상자에서 환경재평가 (p < 0.01)점수의 증가를 나타내었고, 고려 및 준비단계에서는 변화를 보인 변수가 없었다. 채소와 과일섭취의 행위적 변화과정에서는 모두 변화가 없었다. 3) 영양교육 후 채소섭취에 관한 자아효능감은 고려전단계에 있는 대상자에서 '채소를 보이는 곳에 둔다' (p < 0.01)와 '혼자 채소를 먹을 때 권장섭취 횟수만큼 먹을 수 있다' (p < 0.01). '채소 먹을 시간을 낼 수 있다' (p < 0.05)에서 증가를 나타내었다. 고려 및 준비단계에서는 고려전단계에서 나타난 '혼자 채소를 먹을 때 권장섭취 횟수만큼 먹을 수 있다' (p < 0.01)와 '채소 먹을 시간을 낼 수 있다' (p < 0.01)의 항목을 포함하여 '다양한 종류의 채소를 살 수 있다' (p < 0.01)에서 교육 후에 자아효능감이 높아졌다. 즉 채소섭취의 행동변화단계가 높아질수록 자아효능감의 수준이 성숙됨을 보였다. 과일섭취에 대해서는 영양교육 후 고려전단계에 속한 대상자에서 '과일을 보이는 곳에 둔다'의 자아효능감의 점수가 증가되었다 (p < 0.05). 이상의 연구결과에서 영양교육 후 행동전단계에 있는 아동들의 행동변화단계의 진전이 일어났고, 고려전단계와 고려 및 준비단계에서 모두 사회심리적요인의 수준이 높아졌으나 두 단계 간에는 교육효과의 유의적인 차이가 없었다. 과일에 비해 채소섭취와 관련된 사회심리적요인에서 교육 효과가 더 크게 나타났으며, 사회심리적요인들 중에서 판단 균형의 단점에 대한 인지도, 인지적 변화과정, 자아효능감이 영양교육의 평가지표로 사용될 수 있는 가능성을 보였다.