• 보건교육건강증진학회지
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• 제33권4호
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• pp.47-54
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• 2016

Objectives: The prevalence of insufficient physical activity is relatively high in the Republic of Korea and it is increasing. The national strategies to improve physical activity are essential and are suggested in this paper. Methods: National level of physical activity is compared globally by WHO statistics. Korean National Health and Nutrition Survey showed the level of physical activity. National strategies to improve physical activity were suggested referring to the other countries' strategies, public health books and Health Plan 2020. Results: Prevalence of insufficient aerobic exercise in 2010 were 33.4%, 94.8% in over and 18 years old, 11~17 years old, respectively. And it is increasing. Sufficient exercise to fit the national guidelines of physical activity were done by 15.6% of Korean older and 19 years old. Prevalence of insufficient physical activity was high in the elderly, female, adolescent, rural area and lower income. The national spread of the physical activity guidelines, primary care physicians involvement, supports for the physical activity programs, development of the evaluation protocol for the programs and environmental supports are suggested. Conclusions: The government induced various efforts to improve the level of physical activity is needed urgently.

• 대한지역사회작업치료학회지
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• 제9권2호
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• pp.1-12
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• 2019

목적 : 본 연구는 노인의 일상 활동 범주에 따라 보유하고 있는 활동 수준을 확인해보고 일상 활동범주에 따른 차이를 비교해보고자 하였다. 연구방법 : 지역사회에 거주하면서 경제 활동을 하는 노인 30명과 경제 활동을 하지 않는 노인 30명, 시설에 거주하면서 활동을 할 수 있는 노인 30명을 대상으로 한국형 활동분류카드(Korea Activity Card Sort; K-ACS)를 사용하여 활동 보유 수준을 비교하였다. 또한 노인의 활동 수준과 상관이 있는 일반적 특성과 일상 생활 특성을 확인하였다. 결과 : 대상자의 일상 활동 범주에 따른 활동 보유 수준은 통계적으로 유의한 차이가 있었다(p<.001). 수단적 활동에는 각 활동의 범주에 따라 차이를 보이는 반면 여가활동과 사회활동에서는 세 그룹이 비슷한 양상을 나타내었다. 특히 여가 활동에서는 세 그룹 모두 휴식하기와 텔레비전 보기를 가장 많이 하고 있어 우리나라 노인의 여가 활동이 매우 제한적인 것을 확인할 수 있었다. 또한 일반적 특성 중에는 학력, 결혼상태, 종교와 인지 수준이, 일상 활동 특성 중에는 받고 있는 치료와 규칙적인 운동 및 정기 모임 횟수가 노인의 활동 영역과 상관성이 있는 것으로 분석되었다. 결론 : 노인의 일상 활동 범주에 따라 활동 보유 수준은 차이가 있었으며 일반적 특성 및 일상 활동 특성이 노인의 활동 영역과 상관이 있음을 알 수 있었다. 이는 노인 작업치료 시 노인의 일상 활동에 영향을 미치는 특성과 활동보유 수준을 고려하여 클라이언트 중심의 중재 계획을 수립하고 치료적 활동을 계획하기 위한 기초자료가 될 수 있을 것이라 사료된다.

• 한국콘텐츠학회논문지
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• 제10권2호
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• pp.402-411
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• 2010

본 연구는 도시노인과 농어촌노인의 활동의 수준을 알아보고 삶의 질에 영향을 주는 요인을 비교 분석하고 관련성을 규명하고자 하였다. 연구대상은 60세 이상 노인 537명이 참여하였으며, 삶의 질 평가는 SF-36을 사용하였고, 한국판 활동척도를 이용하여 활동 수준을 평가하였다. 삶의 질 비교에서 도시 노인이 농어촌 노인보다 삶의 질이 높았으며, 활동수준 비교에서도 수단적 일상생활, 저강도 고강도 신체활동, 사회활동에서 도시 노인의 활동수준이 높았다. 또한 활동수준과 삶의 질과의 상관성은 모든 활동과 관련이 있었다. 도시노인은 삶의 질 하위영역 점수, 한국판 활동척도 점수, 질환유무, 직업유무가 삶의 질에 영향을 미치는 요인이었으며, 농어촌노인은 삶의 질 하위영역 점수, 한국판 활동척도 점수, 질환유무, 연령, 교육수준이 삶의 질에 미치는 요인이었다. 본 연구 결과를 토대로 농어촌 노인이 의미 있는 활동을 즐길 수 있는 환경적 조성이 요구되며, 다양한 프로그램 개발이 진행되어야 할 것이다.

• 한국학교보건학회지
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• 제27권3호
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• pp.181-188
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• 2014

Purpose: The purpose of this study was to investigate the influence of physical activity on smoking experience and smoking intensity in Korean high school students. Methods: This cross sectional study used secondary data from the 2013 Adolescent Health Behavior Online Survey. A total of 35,905 high school students were included in the study. Logistic regression was used for analysis of the influence of moderate and vigorous physical activity on smoking experience in a month and smoking intensity. Results: Adolescents with low (Adjusted OR: 1.242, 95% CI: 1.075~1.436) and moderate level (Adjusted OR: 1.094, 95% CI: 1.005~1.189) of moderate physical activity had more smoking experience than reference group, high level of physical activity. Also, smoking experience was more prevalent adolescents with low (Adjusted OR: 1.191, 95% CI: 1.064~1.333) and moderate level (Adjusted OR: 1.134, 95% CI: 1.039~1.237) of vigorous physical activity. Heavy smoking was more prevalent among adolescents who had low level of vigorous physical activity (Adjusted OR: 1.912, 95% CI: 1.347~2.712). Conclusion: Based on the results of this study, physical activity has significant influence on smoking experience and smoking intensity. Therefore, physical activity should be included smoking cessation and smoking prevention program for High School Students.

• 품질경영학회지
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• 제50권2호
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• pp.265-286
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• 2022

Purpose: The time and cost of a project activity exists in a selected mode and there is a quality level for the selected mode, and the time and cost of the current activity is determined by the quality level of the preceding activity. When an activity is a predecessor activity of an activity, it is characterized as a trade-off problem in which the time and cost of the activity are determined according to the quality level of the activity. Methods: A neighbor search heuristic algorithm obtains a solution by (1) randomly determining the mode, quality level, and assignment order for each activity. (2) get a solution by improving the solution by changing the possible modes and quality levels; (3) to find a solution by improving the solution from the point where it is feasible to advance the start time. Here, Case[1] is a method to find the optimal solution value after repeating (1). Case [2] is a method for finding a solution including (1) and (2). Case [3] refers to a method for finding solutions including (1), (2), and (3). Results: It can be seen that the value of the objective function presented by the algorithm changes depending on how the model of the heuristic algorithm is designed and applied. In other words, it suggests the importance of algorithm design and proves the importance of the quality problem of activities in the project schedule. Conclusion: A study significance of the optimization algorithm and the heuristic algorithm was applied to the effect of the quality of the preceding activity on the duration and cost of itself and the succeeding activity, which was not addressed in the project schedule problem.

• The Journal of Korean Physical Therapy
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• 제25권6호
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• pp.393-398
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• 2013

Purpose: The purpose of this study was to compare muscle activation patterns of lower extremities in stroke patients during stepper climbing, stair-up, and level-ground gait conditions by surface electromyography (EMG). Methods: Subjects included 19 hemiplegic patients comprehensive rehabilitation center for inpatients with stroke. Surface EMG was used to measure the subjects' medial gastrocnemius (GCM), tibialis anterior (TA), biceps femoris (BF), and rectus femoris (RF) activity as they took six steps during stepper climbing, stair-up, and level-ground gait conditions. Results: There was no significant difference in the BF or RF muscle activity for the stepper climbing, stair-up, and level-ground gait conditions. However, there were significant differences in the medial GCM and TA muscle activity between each condition on the patients' hemiplegic side(p<0.05). There was significant difference in the medial GCM, TA, RF, and BF muscle activity between each condition on the patients' non-hemiplegic side (p<0.05). Conclusion: As a result, the overall muscle activity during the level-ground gait was higher than the stair-up condition, and the muscle activity during the stair-up condition was higher than the muscle activity during the stepper climbing condition. As one of the many methods used for gait training, we suggest that the stepper exercise could be applied at an earlier stage in the gait training process.

• 근관절건강학회지
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• 제19권1호
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• pp.57-70
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• 2012

Purpose: This study aimed to investigate the level of physical activity and to identify factors related with physical activity for the elderly with Diabetes Mellitus (DM). Methods: The subjects were 154 diabetic outpatient at 3 hospitals located in J city. Data were collected from February 1 to 17 in 2012. Data were analysed using Chi-square test, ANOVA, and logistic regression by SPSS/WIN 18.0. Results: Mean physical activity level per week measured by International Physical Activity Questionnaire (IPAQ) was $2247.01{\pm}2533.73$ MET-minutes (minimally active). There were significant differences in the level of physical activity by age, spouse, education, job, admission, duration of DM, and DM therapy. There were significant differences in subjective health status, objective and subjective obesity, satisfaction with physical body, perception of aging, self-efficacy, perceived benefits, perceived barriers, and social support among the inactive, minimally active, and health enhancing physical activity groups. Factors influencing the level of health enhancing physical activity were spouse (OR=10.192), self-efficacy (OR=5.351), subjective obesity (OR=.114), and perceived barriers (OR=.069). Conclusions: The level of physical activity of elderly patients with DM was minimally inactive. Physical activity program enhancing self-efficacy and decreasing perceived barriers, as well as improving the correct perception of subjective obesity is recommended as a nursing intervention.

• Nutritional Sciences
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• 제3권1호
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• pp.11-17
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• 2000

This study was intended to examine whether dehydroepiandrosterone (DHEA) and dietary fat level or source could modulate glutathione utilizing detoxifying system activity and the cytosolic NADPH generation in rat liver. Male Sprague-Dawley rats were fed semipurifed diet containing either 2%(w/w) corn oil (low level of corn oil diet: 5 ca% of fat) 15% corn oil (high level of corn oil diet: 31 cal% of fat) or 13% sardine oil plus 2% corn oil(high level of fish oil diet: 31 cal% of fat) for 9 weeks. Half of the rats in each diet group were fed a diet supplemented with 0.2% DHEA (w/w). DHEA administration increased plasma total cholesterol level in low corn oil diet-fed rats. The high fish oil diet significantly decreased plasma total cholesterol level compared to the high corn oil diet. Plasma triglyceride level was not significantly changed by DHEA administration and dietary fat level and source. Fasting plasma glucose level was increased by DHEA administration and fish oil diet. Glucose 6-phosphate dehydrogenase activity in liver tissue was significantly increased by DHEA administration and high fat diet, especially fish oil diet. Malic enzyme activity in liver tissue was significantly increased by DHEA administration and high fat diet, especially fish oil diet. Malic enzyme activity in liver tissue was significantly increased by DHEA administration. DHEA suppressed the glutathione peroxidase, glutathione-dependent enzymes compared to the low corn oil diet, while fish oil diet elevated the activity of glutathione peroxidase and glutathione reductase compared to corn oil diet. These results suggest that DHEA administration and high level of corn oil diet may suppress the cellular detoxifying system activity through reduction of glutathione utilization, while the fish oil diet did not show these effects.

• 영어어문교육
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• 제17권1호
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• pp.1-16
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• 2011

Listening has been a neglected research area despite the crucial role it plays. The present investigation was aimed at examining how the provision of topical knowledge and learners' listening proficiency level affect learners' listening performance under four different preparatory activity conditions: topical knowledge, vocabulary list, language structure, and no activity. A total of 134 participants, assigned to the four different activity groups, took part in the study. The results revealed that the learners who were provided with topical knowledge before listening performed significantly better than the other learners, followed by the vocabulary list group and language structure group, which might be attributed to the activation of their content schemata. The learners who did not perform any preparatory activities achieved the lowest scores. When it comes to the impact of listening proficiency, it was revealed that learners' proficiency level had a significant influence on learners' listening performance, and there was a significant interaction between the learners' level of listening proficiency and preparatory activity. Providing relevant knowledge was effective for both higher level and lower level learners, whereas teaching vocabulary before listening was effective for higher level learners but was not for lower level ones. Based on the results, some pedagogical implications and suggestions for future research were discussed.

• Nutrition Research and Practice
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• 제4권4호
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• pp.317-322
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• 2010

Prevalence of childhood obesity is increasing significantly worldwide due to energy imbalance perhaps stemming from undesirable dietary behavior and physical activity level. The objective of the study was to examine the effects of physical activity level on nutritional status in elementary school students. The subjects were comprised of 287 elementary school students between 4th and 6th grades in Seoul, Korea. The level of physical activity was scored with a modified Godin leisure-time exercise questionnaire and was categorized as active, moderately active, and sedentary. Dietary intakes were obtained using a 24-hour food recall method. An analysis of variance (ANOVA) was conducted to test for global significant differences of nutrient intakes by physical activity level. Boys were more active than girls. Daily intakes of energy in moderately active boys were significantly higher than in the sedentary group, but intakes of calcium and iron in moderately active boys were lower than active boys. For girls, physical activity level did not affect nutrient density at all. Intakes of calcium, vitamin C, and folate for both boys and girls were below 50% of recommended intake. Physical activity did not affect nutrient density and our participants were exposed to nutritional imbalance. Therefore, the results suggest that nutrition education regarding balanced diet and optimum physical activity is required for children's health and growth.