• Title/Summary/Keyword: research subjects

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The Exercise Capacity and Cardiovascular Factors in Patients with Exaggerated Blood Pressure Response during Treadmill Exercise Testing

  • Bae, Hyung-Joon;Shin, Kyung A
    • Korean Journal of Clinical Laboratory Science
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    • v.43 no.4
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    • pp.138-144
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    • 2011
  • Exaggerated blood pressure response during exercise has been found to increase the risk of future hypertension, left ventricular hypertrophy, cerebrovascular stroke, and CVD (cardiovascular disease) death. The aim of this study was to evaluate exercise capacity, cardiovascular factors in exaggerated blood pressure response during treadmill exercise testing. For research subjects, 72 subjects (normal blood response: 49 subjects, exaggerated blood response: 23 subjects) who received treadmill exercise test at J General Hospital were selected in this study. Exaggerated SBP (systolic blood pressure) response was defined as an SBP of 210 mmHg or greater during a maximal treadmill exercise test. The group with an exaggerated SBP response showed significantly higher values for RPP (rate pressure product) compared with the group with a normal SBP response. Subjects with METs (metabolic equivalents) had lower exaggerated SBP response than normal SBP response group. Subjects with recovery SBP had delayed exaggerated SBP response than normal SBP response group. Exaggerated SBP response to exercise is negative correlation with METs.

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Randomized Clinical Trials of Herbal Acupuncture for Placebo Control (플라세보 약침에 대한 무작위배정 임상시험)

  • Seo, Jung-Chul;Xue, Charlie
    • Journal of Acupuncture Research
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    • v.25 no.6
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    • pp.153-161
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    • 2008
  • Objectives : This study was designed to find out whether normal saline(NS) acupuncture is able to be constituted as an appropriate control group for Cervi Cornu Parvum herbal acupuncture(CC). Methods : NS and CC were injected into Quchi($LI_{11}$) of the subjects. The subjects completed a questionnaire rating the intensity of 21 kinds of acupuncture sensation(hurting, penetrating, sharp, aching, intense, spreading, radiating, tingling, pricking, stinging, pulling, heavy, dull, numb, electric, shocking, hot, burning, cool, pulsing, and throbbing) and side effects. We compared subjective evaluations of acupuncture sensation and side effects between two groups. Results : As for CC most of the acupuncture sensation items were not significantly different from NS especially in less acupuncture-experienced subjects(average 2, below 10 time experiences) rather than more acupuncture-experienced subjects(above 10 time experiences). Conclusions : We found that NS might be an appropriate placebo herbal acupuncture for CC in small amount of acupuncture-experienced subjects. Further study is needed for new placebo herbal acupuncture for CC in more acupuncture-experienced subjects.

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Qualitative Study on Body Image and Appearance Behaviors in the Diet Center

  • Lee, Seung-Hee
    • Journal of Fashion Business
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    • v.8 no.6
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    • pp.113-122
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    • 2004
  • The purpose of this study was to examine and understand body image, appearance behaviors, and eating disturbances among females in the Diet Center. Subjects for this research were 40 females enrolled at the Diet Center in Seoul. They were interviewed for this study using an interview schedule at September in 2004. As a result, most of the subjects (87%) were dissatisfied with their bodies, especially their lower body such as hip, thighs, legs, stomach. Subjects tended to use dieting and fasting (46.3%) as the most common appearance management behaviors in relation to the body parts. Make-up (32.9%) was also used as routine appearance behaviors, while 37.5% of subjects have had cosmetic surgery on eyes, nose and liposuction. Sixty percent of subjects had participated in Diet center programs more than twice. This may mean that society pressures women to have a slim body, which then will result in more self-confidence. Subjects tend to engage in unhealthy eating behaviors, such as 'fasting', 'inducing vomit', 'using diet pills or laxatives', and 'after chewing, spit out'. Based on these results, socio-cultural body image regarding ideal beauty would be discussed.

Correlation between Serum Leptin Levels and BMI in Adults Residing in Pohang, Korea

  • Shin, Hyeon-Soo;Crabtree, Jennifer;Rayner, Vernon;Trayhurn, Paul;Do, Myoung-Sool
    • Preventive Nutrition and Food Science
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    • v.10 no.1
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    • pp.64-67
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    • 2005
  • Leptin is a small polypeptide hormone secreted primarily by adipocytes. Leptin regulates energy balance by decreasing food intake and increasing energy expenditure. This study investigated the relationships between serum leptin levels and BMI (body mass index) in 49 adults in Pohang, Korea. The subjects were 25 males and 24 females, aged 21 to 64 years attending an outpatient clinic at Handong University Sunlin Presbyterian Hospital. Values are given +/- the standard error of the mean. Our study shows that the serum leptin levels in these subjects were positively correlated with BMI. The leptin levels were higher in females (2.39+/-1.82 ng/mL) than in males (0.43+/-0.455ng/mL), although lower than previously reported. We therefore compared the serum leptin levels from the male Korean subjects (BMI 24.3+/-0.74㎏/㎡) with serum from six British males with a similar BMI (23.4+/-1.48㎏/㎡). The serum leptin concentrations (1.76+/-0.76 ng/mL) were lower than that of plasma (4.28+/-1.66 ng/mL) in the British subjects. The serum leptin in the British subjects (1.76+/-0.76ng/mL) was higher than that in the Koreans. There was no correlation between leptin levels and BMI in either male (slope 0.018 ± 0.036, p=0.624) or female (slope 0.382±0.433, p=0.417) type 2 diabetic patients in Pohang, Korea. Taken together, our study shows that the serum leptin level in Koreans varies with the BMI, but is lower than that of BMI-matched British subjects.

A Study on Sleep in Rheumatoid Arthritis Patients (류마티스 관절염 환자의 수면 및 관련 요인에 관한 연구)

  • Kim Keum-Soon;Yoo Kyung-Hee
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.6 no.2
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    • pp.198-210
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    • 1999
  • This study is to investigate sleep patterns of rheumatoid arthritis patients through a survey research. The subjects for this study were 97 patients registered in Hanyang University Hospital Rheumatoid Arthritis Center, and the period of data collection was from July 15, 1998 to August 30, 1998. The research instruments used in this study were the measures of sleep, pain, and fatigue, and SPSSWIN 8.0 Program was used for data analysis. The research results are as follows ; The patients went to bed between 11 and 12 p.m., but many of them found difficulty in falling asleep within 5 minutes. They woke up quite early at around 4 to 6 o'clock in the morning and remained in bed about 1 hour. Only 39 percent of the subjects reported satisfaction with their sleep. Fifty six percent of the subjects took a nap, generally did in the afternoon and 22.7 percent of them napped for half an hour. They suffered sleep disturbance, but their sleep environments were calm and comfortable, and they turn off the light when they went to sleep. As for the quality of sleep, over 50 percent of the subjects reported not being able to sleep deeply, 30 percent of the subjects woke up frequently during sleep, 60 percent experienced frequent arousal after sleep onset. Over 90 subjects slept for 6 to 8 hours. This shows that even though they had rheumatoid arthritis, the patients remained in bed for a sufficient period of time. They also reported waking up or turning frequently during sleep. The sense of fatigue from sleep disturbance scored a relatively high 35.84 points on average against the possible score of 64 points. Behavior for sleep promotion was very active. Sleep disturbance occurred in proportion to the sense of fatigue and pain, and was negatively correlated with quality of sleep. The pain had positive correlations with the illness duration, sleep disturbance and had a negative correlation with the quality of sleep.

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Effect of movie on viewer's political and social recognition (영화 <카트>가 수용자의 정치적, 사회적 인식에 미치는 영향)

  • Park, Dug-Chun
    • Journal of Digital Convergence
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    • v.13 no.11
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    • pp.365-371
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    • 2015
  • This experimental research explores the effect of the movie that can be classified as non-news media on viewers' political and social attitude on the theoretical basis of priming effect, focused on the movie 'cart' that deals with non-regular workers' labor movement. For this experimental research, one group of subjects composed of university students were exposed to movie 'cart', and the other not to the movie. After watching a movie, each group of subjects responded to questions that are designed to measure the seriousness of non-regular workers' problem, the necessity of labor movement, support of opposition party, support of the current government. This research found that subjects exposed to the movie 'cart' consider non-regular workers' problem more serious and supports opposition party more positively than subjects not exposed to movie 'cart.' However hypotheses that expected the positive support of treated subjects on labor union and less positive support of treated subjects on current government were rejected.

A Study on the Patterns of Nutrient Supplement Usage and its related influencing factors of High School Students in Chonbuk Area (전북지역 일부 고등학생의 영양보충제 섭취실태 및 섭취요인 연구)

  • Cha, Youn-Soo;Kim, Jong-Sun;Rho, Jeong-Ok
    • Korean Journal of Human Ecology
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    • v.16 no.6
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    • pp.1231-1241
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    • 2007
  • This study was conducted to investigate the nutrient supplement use and its related influencing factors by high school students in Chonbuk area. Self administered questionnaires were collected from 489 (urban: 268, rural: 221). Statistical data analysis was completed using a SPSS v. 10.0 program. The results are summarized as follows. According to the general characteristic of subjects, the job and education level of parents and family monthly income respectively affected the nutrient supplement use of subjects (p<0.001). According to the living area, taking a nutrient supplement of parents and nutritional information respectively affected the nutrient supplement use of subjects (p<0.001). About 42.2% of subjects, who taking a nutrient supplement, responded to take a traditional medicine type, and 24.4% of them a multivitamin. Their mothers were important recommended person. The main reason for taking was 'to recommended from parent' (38.5%) and 'recovery from tiredness' (29.6%). The main reason for not-taking was that they were health, therefore nutrient supplements were not necessary. In the future about 43.7% of urban and 33.9% of rural area responded to take a nutrient supplements (p<0.05). These findings show that the behaviors of nutritional supplement usage by subjects are not reasonable, and their supplement usage tends to be affected by general characteristics. Therefore, nutritional understanding and education that are intended to from reasonable behaviors toward nutritional supplement usage of adolescents should be provided with considering the relationship between general characteristic of subjects and supplement usage.

Mapping Knowledge Structure of Science and Technology Based on University Research Domain Analysis (대학의 연구 영역 분석을 통한 과학 기술 분야의 지식 구조 매핑에 관한 연구)

  • Chung, Young-Mee;Han, Ji-Yeon
    • Journal of the Korean Society for information Management
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    • v.26 no.2
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    • pp.195-210
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    • 2009
  • This study explores knowledge structures of science and technology disciplines using a cocitation analysis of journal subject categories with the publication data of a science & technology oriented university in Korea. References cited in the articles published by the faculty of the university were analyzed to produce MDS maps and network centralities. For the whole university research domain, six clusters were created including clusters of Biology related subjects, Medicine related subjects, Chemistry plus Engineering subjects, and multidisciplinary sciences plus other subjects of multidisciplinary nature. It was found that subjects of multidisciplinary nature and Biology related subjects function as central nodes in knowledge communication network in science and technology. Same analysis procedure was applied to two natural science disciplines and another two engineering disciplines to present knowledge structures of the departmental research domains.

Comparison of Clinical and Psychological Characteristics between Self-Reported Bruxism and Clinically Detected Bruxism by Wear Facet on Splint

  • Shim, Young-Joo;Kang, Jin-Kyu;Lee, You-Mee;Lim, Hyun-Dae
    • Journal of Oral Medicine and Pain
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    • v.40 no.4
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    • pp.140-145
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    • 2015
  • Purpose: Bruxism is commonly considered a major risk factor for temporomandibular disorders (TMD), and the psychosocial factors had been one of the etiologic factor of bruxism. But there are still unsolved issues on the relationship between sleep bruxism and TMD and the etiologic factors of bruxism. This study is aim to evaluate the clinical and psychosocial characteristics according to diagnostic grade of bruxism in TMD patients. Methods: Three hundred subjects were enrolled who were under the stabilization splint therapy for TMD. Recently international consensus proposed a diagnostic grading system of "possible", "probable", and "definite" sleep or awake bruxism for clinical and research purpose. According to their suggestion, we classified these subjects as self-reported bruxism (SRB) and wear facet bruxism (WFB). We investigated the clinical characteristics (sex, age, chief complaint, pain duration, visual analogue scale), sum of tenderness (temporomandibular joint, masticatory muscles, cervical muscles), diagnosis of TMD according to research diagnostic criteria (the Research Diagnostic Criteria for Temporomandibular Disorders, RDC/TMD), headache, subjective sleep quality (Pittsburgh Sleep Quality Index, PSQI), and psychosocial characteristics (Symptom Checklist-90-Revised, SCL-90-R) in enrolled subjects. We compared the clinical and psychosocial characteristics between these bruxism groups. Results: There were no significant correlation between self-reported and WFB (p=0.13). SRB subjects more reported pain as a chief complain than subject who did not report bruxism (p=0.014). The mean score of global PSQI was significantly higher in SRB than in did not report positively subjects (p=0.045). The mean score of anxiety and phobic anxiety was significantly higher in SRB than in did not reported positively subjects (p=0.045, p=0.041). Conclusions: Although bruxism is regarded as risk factor of TMD, this study showed inconsistent result between SRB and clinically detected bruxism by wear facet on slpint. We suggest that the clinician should consider with extreme caution when they assess SRB.

A randomized study to establish the effects of spirulina in type 2 diabetes mellitus patients

  • Lee, Eun-Hee;Park, Ji-Eun;Choi, Young-Ju;Huh, Kap-Bum;Kim, Wha-Young
    • Nutrition Research and Practice
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    • v.2 no.4
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    • pp.295-300
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    • 2008
  • Spirulina is a microscopic and filamentous cyanobacterium that contains essential amino acids, essential fatty acids, vitamins, minerals and anti-oxidative components. The purpose of this study was to examine effects of spirulina intervention in Korean patients with type 2 diabetes. The subjects were 37 type 2 diabetic patients who visited a diabetic clinic in Seoul and randomly assigned into spirulina (8 g/day) or control group. During the intervention period of 12 weeks, subjects were asked to keep usual diet and prohibited to take any functional foods or dietary supplements. Spirulina supplementation for 12 weeks did not affect anthropometric parameters, however, lowered plasma triglycerides level significantly (p<0.05). Spirulina supplementation also resulted in a significant reduction in plasma malondialdehyde level (p<0.05) and an increase in plasma adiponectin level (p<0.1). The lipid lowering effect of spirulina supplementation was different according to serum lipid levels of the subjects before entering the intervention. The subjects with higher initial triglyceride level showed higher reduction in plasma triglyceride and blood pressure. The subjects with higher initial total cholesterol and LDL-cholesterol level showed higher reduction in plasma concentrations of total cholesterol, LDL-cholesterol, IL-6, and blood pressure. It seems that spirulina supplementation is more effective in subjects with dyslipidemia. This study provides the evidence for beneficial effects of spirulina supplementation on blood lipid profiles, inflammatory variables, and antioxidant capacity in Korean patients with type 2 diabetes. The results suggest that spirulina is a promising agent as a functional food for diabetes management.