• 동아시아식생활학회지
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• 제25권1호
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• pp.49-63
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• 2015

The purpose of this study was to investigate body recognition, eating patterns, and health status of female college students in Seoul according to body mass index. In this study, we classified subjects as underweight, normal weight, and obese according to BMI. The mean age of subjects was $20.69{\pm}1.72$ years. Average height, weight or BMI of subjects were $161.49{\pm}5.39cm$, $52.17{\pm}6.53kg$ and $20.01{\pm}2.35kg/m^2$, respectively. Body satisfaction rate was 11.5% for 'Yes', whereas body dissatisfaction rate was 88.5% (p<0.05). Body dissatisfaction rates for the 'overweight', 'body dissatisfaction' and 'underweight' groups were 54.7%, 37.5% and 3.1%, respectively. The most common reason for controlling weight was 52.8% for 'to look pretty', whereas 'stress' at 45.5% was the most common in the obese group. 'Exercise + diet therapy' was used by 48.7%, followed by 'hungry' (23.9%), 'exercise' (17.3%) and 'intermittent diet' (6.1%). 'Regular exercise' 35.3%, 'A good rest & sleep' 32.4% and 'Regular meals & taking nutrition' 26.6% were significantly important (p<0.05). Overeating was lower among obese subjects, whereas consumption of fried foods and high-fat meats was higher (p<0.05). These results suggest the need for proper nutrition education for college students.

• 지역사회간호학회지
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• 제17권2호
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• pp.210-222
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• 2006

Purpose: This study was performed to identify the health status, healthy behavior, and health promotion program needs of day time and shift time industrial male workers at an workplace. Method: Relevant data were collected from June 20 to August 18, 2005. Questionaries were distributed to all subjects along with their medical records of 2005 and 151 sets of responses were used for the analysis. Collected data were analyzed using SPSS WIN 10.0. Result: 1. Health Status - day time and shift-time workers had significant differences in obesity ($x^2=8.38$, p<.01) and blood pressure ($x^2=-2.17$, p<.05). 2. Healthy Habits - Full-time and part-time workers had significant differences in regular meals (63.83, p<.01), preferred foods ($x^2=7.10$, p<.05), and sleep time (t=-3.55, p<.01). They also had significant differences in exercising ($x^2=13.11$, p<.01), exercising time (minutes) (t=-2.25, p<.01), and use of fitness centers ($x^2=7.02$, p<.05). 3. They also had significant differences in their needs of health programs ($x^2=8.66$, p<.01). Conclusion: This study revealed that day time and shift-time workers had differences in obesity and blood pressure, as well as differences in eating sleeping, and exercising patterns. Both groups needed 'fitness programs' more than any other types of health programs and picked 'weight loss' and 'stress control' programs for other options. Industrial nurses should be able to create appropriate health programs for each group based on the above results and induce the workers' active participation.

• Asian-Australasian Journal of Animal Sciences
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• 제31권11호
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• pp.1828-1832
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• 2018

Objective: Environmental change is one of the stressful events in livestock production. Change in environment disturbs cow behavior and cows require several days to regain a stable behavioral pattern. Sleeping posture (SP) and lying posture (LP) have been used as indicators for animal that are relaxed and well-acclimated to their environment. The aim of this study was to examine the time required by Japanese black cows for stabilization of SP and LP after moving into new environment. Methods: Seven pregnant Japanese black cows were used. Cows were moved into new tie-stall shed and their sleeping and lying posture measured 17 times during 35 experimental days. Both SP and LP were detected by accelerometer fixed on middle occipital and hip-cross, respectively. Daily total time, frequency, and average bout of both SP and LP were calculated. Results: Daily SP time was the shortest on day 1 and increased to the highest on day 3. It then decreased until day 9, after that stabilized about 65 min/d till the end of experiment. Daily LP time changed in same manner as daily SP time. The average SP bout was the longest on day 1, and then decreased to stable level on day 7. On the other hand, the average LP bout was the shortest on day 1, and it increased to stable level on day 7. Conclusion: These results showed that pregnant Japanese black cows needed 1 week to stabilize their SP. However, there were different change patterns between the average SP and LP bout, even though the change pattern of daily SP and LP time were similar.

• Journal of Preventive Medicine and Public Health
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• 제40권5호
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• pp.351-362
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• 2007

Objectives: The present study was intended to assess the mental health of nurses working for university hospitals and to establish which factors determine their mental health. Methods: Self-administered questionnaires were given to 1,486 nurses employed in six participating hospitals located in Daejeon City and Chungnam Province between July 1 st and August 31st, 2006. The questionnaire items included sociodemographic, job-related, and psychosocial factors, with job stress factors (JCQ) as independent variables and indices of mental health status (PWI, SDS and MFS) as dependent variables. For statistical analysis, the Chi-square test was used for categorical variables, with hierarchical multiple regression used for determining the factors effecting mental health. The influence of psychosocial and job-related factors on mental health status was assessed by covariance structure analysis. The statistical significance was set at p<0.05. Results: The factors influencing mental health status among subject nurses included sociodemographic characteristics such as age, number of hours of sleep, number of hours of leisure, and subjective health status; job-related characteristics such as status, job satisfaction, job suitability, stresses such as demands of the job, autonomy, and coworker support; and psychosocial factors such as self-esteem, locus of control and type A behavior patterns. Psychosocial factors had the greatest impact on mental health. Covariance structure analysis determined that psychosocial factors affected job stress levels and mental health status, and that the lower job stress levels were associated with better mental health. Conclusions: Based on the study results, improvement of mental health status among nurses requires the development and application of programs to manage job stress factors and/or psychosocial factors as well as sociodemographic and job-related characteristics.

• 대한지역사회영양학회지
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• 제7권4호
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• pp.495-505
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• 2002

A study was performed to develop as a screening tool the Simple Evaluation Questionnaire for Screening the Over-weight-type Dietary Pattern in 30 to 49 Year Old Adults. We used the data from the 30 to 49 year old subjects who participated in the three surveys - the health behavior survey, the dietary habit survey and the food intake survey - as the National Health and Nutrition Survey 1998. The 3,598 adults were classified into to two body fatness groups of normal (including underweight) and overweight (including obese) on the basis of their relative body weight (RBW) When comparing variables between the two groups, significant differences were found in gender, education, job, employment status, perceived health status, sadness / depression state, stress level, age, number of diseases, age when overweightedness started, maximum body weight, sleep length, drinking pattern (yes/no) , amount of alcoholic drinks, frequency of intoxication or drunkeness, amount of alcoholic drinks when drunk, intensity of exercise, frequency of exercise, exercise duration, skipped meals, small meals and drug supplements. In terms of food intake, there were significant differences in the daily food intake in terms of breakfast, dinner, daily kimchi and dairy products. In terms of mealtimes, we found differences in the amount of cooked rice at breakfast, kimchi at lunch, soup / kuk at dinner, fresh vegetables for snacks, fried foods for snacks between breakfast and lunch, and fruits /juices for snacks between lunch and dinner. After developing questions with indicators and analyzing the indicators by logistic regression analysis three times, we chose 10 questions for a simple evaluation of dietary patterns for the overweight-type category in order to give one point each. Among them we selected two questions to add one additional point and one question to add two additional points. The average scores of the overweight and normal groups, as shown by the developed questionnaire, were $5.97 \pm 2.36 \pm 7.36 \pm 2.21$, respectively. A score of seven points was selected as the cut-off point. We examined the sensitivity, specificity and positive predictive value of the questionnaire to the results of 67%, 59% and 62%, respectively.

• 한국산업보건학회지
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• 제32권3호
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• pp.221-230
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• 2022

Objectives: The aim of this study is to evaluate the association between shiftwork and skeletal muscle mass index in a single university health check-up. Methods: We used data from 98,227 workers who answered in a special interview on health check-up at a local university hospital from 2014 to 2020. Pearson correlation analysis was conducted for comparing the association between skeletal muscle mass index and demographic and hematological variables in shiftwork and non-shiftwork groups. Mixed linear model analysis after controlling demographic and hematological variables was used to analyze the difference of skeletal muscle mass index between groups at every visit for seven years. Results: In linear regression analysis, the variables most significantly correlated with skeletal muscle index in both groups were shiftwork(p=0.049), BMI(p<0.001), hypertension(p=0.024), platelet(p<0.001), total protein (p<0.001), AST(p=0.028), ALT(p=0.003), ALP(p<0.001), total cholesterol(p=0.002), triglyceride(p=0.019), BUN (p=0.001), creatinine(p<0.001), and uric acid(p=0.002). After the adjustment for demographic and hematologic variables, the skeletal muscle mass index at every visit was decreased both in the shiftwork group and non-shiftwork group. The slope of the shiftwork group was -0.240 and non-shiftwork group -0.149, showing a significant difference (p<0.001). Conclusions: In the shiftwork group, the skeletal muscle mass index showed a tendency to decrease markedly over time compared to the non-shiftwork group. It is presumed that shift workers' skeletal muscle health was adversely affected by changes in the biological clock due to changes in wake-up and sleep patterns, and changes in food intake.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제17권2호
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• pp.312-334
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• 2023

In large-scale computing, cloud computing plays an important role by sharing globally-distributed resources. The evolution of cloud has taken place in the development of data centers and numerous servers across the globe. But the cloud information centers incur huge operational costs, consume high electricity and emit tons of dioxides. It is possible for the cloud suppliers to leverage their resources and decrease the consumption of energy through various methods such as dynamic consolidation of Virtual Machines (VMs), by keeping idle nodes in sleep mode and mistreatment of live migration. But the performance may get affected in case of harsh consolidation of VMs. So, it is a desired trait to have associate degree energy-performance exchange without compromising the quality of service while at the same time reducing the power consumption. This research article details a number of novel algorithms that dynamically consolidate the VMs in cloud information centers. The primary objective of the study is to leverage the computing resources to its best and reduce the energy consumption way behind the Service Level Agreement (SLA)drawbacks relevant to CPU load, RAM capacity and information measure. The proposed VM consolidation Algorithm (PVMCA) is contained of four algorithms: over loaded host detection algorithm, VM selection algorithm, VM placement algorithm, and under loading host detection algorithm. PVMCA is dynamic because it uses dynamic thresholds instead of static thresholds values, which makes it suggestion for real, unpredictable workloads common in cloud data centers. Also, the Algorithms are adaptive because it inevitably adjusts its behavior based on the studies of historical data of host resource utilization for any application with diverse workload patterns. Finally, the proposed algorithm is online because the algorithms are achieved run time and make an action in response to each request. The proposed algorithms' efficiency was validated through different simulations of extensive nature. The output analysis depicts the projected algorithms scaled back the energy consumption up to some considerable level besides ensuring proper SLA. On the basis of the project algorithms, the energy consumption got reduced by 22% while there was an improvement observed in SLA up to 80% compared to other benchmark algorithms.

• 한국학교ㆍ지역보건교육학회지
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• 제25권2호
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• pp.27-44
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• 2024

목적: 본 연구는 청소년의 생활습관과 흡연경험의 연관성을 알아보고 영향요인을 파악하여 청소년 흡연 예방을 위한 기초자료 제공하고자 하였다. 방법: 청소년건강행태조사 제17차(2021년) 자료를 활용한 2차 자료 분석으로 설계하였다. 연구대상은 796개 학교 54,848명의 자료를 사용하였으며 연구변수는 일반적특성, 흡연유무와 생활습관인 식습관, 신체활동습관, 수면습관, 스트레스인지정도를 사용하였다. 분석방법으로는 연구대상의 일반적 특성은 빈도분석, 흡연유무에 따른 일반적특성과 생활습관의 차이는 빈도분석과 Pearson Chis-square 검정을 실시하였다. 생활습관이 흡연경험에 미치는 영향요인을 알아보기 위해 다항 로지스틱 회귀분석을 실시하였다. 모든 분석은 IBM SPSS Statistics 28을 이용하였고 p<0.05인 경우 통계적으로 유의하다고 판단하였다. 결과: 일반적 특성에서 흡연경험이 있는 그룹에서 흡연경험이 없는 그룹보다 남학생이 더 많았다(67.4% : 50.1%)(p<0.001). 흡연경험 유무에 따른 생활습관의 차이를 분석한 결과 흡연경험이 있는 그룹에서 아침식사를 0일 하는 경우(27.7%), 과일섭취를 0번하는 경우(17.8%), 패스트푸드를 매일 3번이상 먹는 경우(0.9%)가 더 많았다(p<.001). 흡연경험 유무에 따른 신체활동습관은 흡연경험이 있는 그룹에서 60분 이상 숨이 찬 정도의 신체활동을 주 7회 하는 경우(8.4%), 고강도 신체활동을 주 5일 이상 하는 경우가(18.7%)가 더 많았다(p<.001). 수면을 통해 피로회복 정도는 흡연경험이 있는 그룹에서 전혀 충분하지 않다(21.6%)와 평상시 스트레스를 느끼는 정도가 아주 심한 경우(17.2%)가 흡연경험이 있는 그룹에서 더 많았다(p<.001). 생활습관과 흡연과의 연관성을 분석한 결과, 아침식사를 0일 하는 경우가 매일 하는 경우 보다 흡연가능성이 증가하였으며(OR=1.759, p<.001), 과일섭취를 0번 섭취하는 경우가 매일 3번 이상 섭취하는 경우보다 흡연경험 가능성이 증가하였다(OR=1.921, p<.001). 패스트푸드 섭취를 0번 하는 경우는 매일 3번 이상하는 경우보다 흡연경험 가능성이 감소하였다(OR=0.206, p<.001). 수면으로 피로회복정도가 충분한 경우는 충분하지 않는 경우보다 흡연경험 가능성이 감소하였으며(OR=0.458, p<.001), 스트레스를 가장 많이 느끼는 경우는 스트레스를 느끼지 않는 경우보다 흡연경험 가능성이 증가하였다(OR=1.260, p<.05). 결론: 청소년의 생활습관은 흡연경험과 연관성이 있음을 알 수 있었다. 이를 통해 청소년의 흡연 예방을 위한 정책 및 프로그램 개발 시 흡연행위 뿐만아니라 생활습관을 고려하여 다각적인 측면으로 교육 및 지도하는 방안을 모색할 수 있을 것이다. 이에 본 연구가 건강하고 올바른 생활습관 개선을 통한 청소년의 흡연 예방을 위한 기초자료로 활용될 수 있기를 기대한다.

• 한국산학기술학회논문지
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• 제21권5호
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• pp.598-606
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• 2020

본 연구는 학교 유형별 고등학생의 스트레스 인지 요인과 이에 대한 양상을 분석하였다. 연구대상은 제14차 청소년건강행태조사 원시자료 중 연구 목적에 부합하는 29,380명이다. 스트레스 인지와 관련 있는 요인을 일반적 특성, 건강행태 특성, 건강상태 특성으로 구분하였다. 연구대상 요인에 대하여 동일 유형의 고등학교 집단 내 분석 및 집단 간 분석을 시행하였다. 연구를 통해 나타난 결과를 요약하면 다음과 같다. 일반계 고등학교 학생 집단이 특성화 고등학교 학생 집단에 비해 유의하게 스트레스 인지가 높았다. 두 학교 유형에서 스트레스 인지는 다수의 공통적인 요인들과 집단 특이적 요인들이 관련되어 있었다. 공통으로 스트레스 인지와 관련이 있는 주요 요인은 우울감 경험, 주관적 건강상태 인지, 주관적 수면충족 그리고 성별 순이었다. 그러나 각각의 요인들이 스트레스 인지와 관련이 있는 양상은 학교 유형에 따라 차이가 있었다. 따라서 고등학교 청소년들의 스트레스 파악 및 중재를 위한 정책 수립에서 공통적인 스트레스 인지 관련 요인을 고려함과 동시에 각 집단의 특성을 충분히 인지하고 반영하는 노력을 해야 할 것으로 판단된다.

• Journal of Oral Medicine and Pain
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• 제37권1호
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• pp.47-59
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• 2012

본 연구는 부산 청소년의 측두하악장애의 양태, 증상과 진단명에 대한 변화를 알아보기 위해 다음과 같은 조사를 시행하였다. 2000년과 2008년에 내원한 12-19세 청소년의 측두하악장애 분석검사를 조사하여 성별, 나이, 악관절환자를 위한 조사 설문지, 원인, 진단명, 장치치료여부, 치료종결시 Pain NAS 항목에 대한 자료를 정리, 분석하였다. 1. 2000년도에 비해 2008년도의 청소년 내원 환자수가 증가했다. 이 중 남자 청소년의 비중이 현저히 증가했다. 2. 2000년도에 비해 2008년도의 청소년이 개구제한보다는 소리를 주소로 내원하는 경우가 많아졌으며 악습관 중 이갈이, 이악물기, 턱괴기, 수면의 질 저하 비율이 유의하게 증가하였다. 3. 골관절염은 유의하게 증가하였고 과운동은 유의하게 감소하였다. 4. 골관절염 환자에서2000년도에 비해 2008년도 10대 청소년의 남자비율이 현저히 증가하였다. 턱괴기, 이갈이, 이악물기 악습관을 가진 환자 중 지난 10년간 공통적으로 골관절염이 유의하게 증가한 것으로 미루어 턱괴기, 이갈이, 이악물기가 골관절염 발병 증가와 유의한 관계가 있을 것으로 추측할 수 있다.