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The Effects of Muscle Balance in Lower Limb on Anaerobic Pedaling Capacity among Elite Cyclists (사이클 선수의 하지근력균형이 무산소성 페달링 기능에 미치는 영향)

  • Park, Hyun-Ju;Kim, Jung-Hoon
    • Journal of Digital Convergence
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    • v.17 no.6
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    • pp.389-399
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    • 2019
  • The purpose of this study was to investigate the effects of muscle asymmetry of knee joint among elite cyclists on anaerobic pedaling power related capacity. In another word, based on isokinetic strength of Non-Dominant, ND and Dominant, D, side, high, moderate and low ratio of ND to D were classified as High Symmetry Group, Moderate Symmetry Group and Asymmetry Group, respectively. Analysis of muscle asymmetry of extensor's ND and D side might not lead to any difference between the three groups. Based on muscle strength analysis of the flexor's ND and D, there was statistical difference between the groups in ND flexor and in the muscle balance index of the flexor muscle. This result also leads to significant difference in pedaling power functionality, but this effects might not lead to any negative pedaling power. Therefore, among even cyclists who may show almost the same recruitment pattern of ND and D side during pedaling stroke muscle asymmetry could exist but this phenomena might not negatively contribute to the pedaling capacity.

Clothing Pressure Evaluation of Girdle and Waist Nipper and Related Wearing Conditions (거들 및 웨이스트니퍼 착용에 의한 의복압 평가 및 관련된 착용변인)

  • Lee, Heeran;Hong, Kyunghi;Kim, Yang Weon;Park, Se Jin
    • Science of Emotion and Sensibility
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    • v.16 no.1
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    • pp.1-10
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    • 2013
  • The purpose of this paper is to investigate the adequate clothing pressure of upper and lower body foundation garment and subjective assessment of those compressive foundation depending on various wearing conditions. Eighteen women in their 30s and 40s participated in the experiments for this study to evaluate the level of clothing pressure of girdle and waist nipper. Subjects were divided into two groups by the wearing habits of foundation, one is the group of wearing foundation garment 'tightly' and the other is 'loosely', It was found that the group wearing foundation garment 'loosely' was much more sensitive than the group of 'tightly' in everyday life. The adequate pressure of upper foundation, waist nipper was about $1.5{\pm}0.8$ kPa which is lower than that of the lower body foundation, girdle. And at the same time, the sensitivity of the pressure level was higher when subjects are wearing waist nipper compared with wearing girdle. Therefore, precise pattern making process is necessary to meet the adequate level of pressure of the upper body foundation such as waist nipper, specially for those who used to wear clothing loosely.

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The Effects of Teenagers' Brand Perceptions on their Sociability -Focusing on Policy Implications- (청소년의 브랜드인식이 사회성에 미치는 영향 - 정책적 시사점을 중심으로 -)

  • Kim, Kyung-Sook;Park, Hwie-Seo
    • Journal of the Korea Society of Computer and Information
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    • v.19 no.1
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    • pp.181-189
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    • 2014
  • The purpose of this study is to suggest some policy implications for the youth through empirical study about the effects of middle school students' brand perception on their sociability. For the purpose of this study, this study established a causal model about the relationships between brand perception and sociability through review of previous studies and surveyed for empirical research. The results of this study are presented as follows: Preference, imitation, and relevance as brand purchase elements of teenagers affected their self-esteem and empathy for others significantly. Self-esteem that is meditating variable in this study did not have a significant effect on sociability, while empathy for others had a great effect on it. This study suggested policy implications for teenagers to have good standards and a sense of value in a brand purchase.

Analysis of Lower Somatotype on Adult Women and Appearance Analysis of Flare Skirts by using the Image Processing (성인 여성의 하반신 체형분석과 염상처리를 이용한 플레어 스커트의 외관분석)

  • Lee, Soo-Jung;Hong, Jeong-Min
    • The Korean Fashion and Textile Research Journal
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    • v.1 no.3
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    • pp.252-258
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    • 1999
  • The aims of this study is to classify the lower somatotype of adult women and appearance analysis on the shape of flare skirts by using the image processing. Also We have made skirts in order to analyze the various types of appearance of flare skirts by using the image processing. The subjects for our wear test lower somatotype, who were controlled in their waist, abdomen and hip shapes. The flare skirts used for wear test were 112 types(combinated 14 fabric type and 8 lower somatotype). The effect of lower somatotype on the shape of flare skirts was determined by the horizontally hem line section shape and the silhouette of flare skirts with image processing. The data were analyzed by using analysis of variance and Turkey, Duncan multiple range test. The results obtained are summarized as follows: It is shown that the fabric weight elongation differs in fabrics properties, in direction of textures. The shape horizontal section of flare skirt hem line has differed with the number of nodes, wave-height of nodes and breadth of silhouette by fabrics properties and lower somatotype. It is noticed that the breadth of flare skirts by the silhouette has high correlation with the drape ability of fabrics and lower somatotype. Results for our flare skirts show changes in amplitude and mean with fabrics, somatotype. Therefore we can say that gray-level histograms are correlated with changes in appearance, differences in drape spacing and related fabric properties and their somatotype.

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Performance Evaluation of Light-Shelf based on Light Enviorment and Air Conditioner Enviorment (빛환경 및 냉난방환경 기반 광선반 성능평가 연구)

  • Jeon, Gangmin;Lee, Heangwoo;Seo, Janghoo;Kim, Yongseong
    • KIEAE Journal
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    • v.16 no.5
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    • pp.47-55
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    • 2016
  • Purpose: As the energy consumed by buildings increases, there is a growing need for studies and technology development to address this issue. One of the solutions to excessive energy use by buildings is the light-shelf, which is a natural lighting system enabling efficient reduction in light energy, and research in this area has been intensive. However, most of the studies about the light-shelf are limited to the light environment, and thus the application of their findings to an actual environment in the form of a design may be problematic. Therefore, the purpose of the present study is to provide fundamental data for light-shelf design by carrying out a light-shelf performance evaluation on the basis of the light environment and the heating and cooling environment. Method: In the present study, a testbed was established to conduct a light-shelf performance evaluation by measuring the electric power consumption of lighting and heating and cooling devices depending on the existence of a light-shelf and its angle. Result: The findings of the present study are as follows: 1) With respect to the uniformity of the indoor light environment amenity, the optimum angle of a light-shelf was found to be $30^{\circ}$ for the summer solstice and the winter solstice. 2) With respect to the reduction of electric power consumption by indoor lighting devices, the optimum light-shelf angle at the summer solstice is $30^{\circ}$, at which time electric power consumption may be reduced by 10.2% in comparison with when no light-shelf is applied. However, at the winter solstice, a light-shelf may increase the energy consumption for lighting in comparison with when no light-shelf is applied, and this should be taken into account in the design of a light-shelf. 3) In terms of reducing the electric power consumption of heating and cooling devices, the optimum angle of a light-shelf was found to be $30^{\circ}$ for the summer solstice, while a light-shelf is inappropriate for the winter solstice since a light-shelf creates shade and thus increases the heating energy consumption. 4) To summarize the findings above, the optimum angle of a light-shelf is $30^{\circ}$ for the summer solstice, but the installation of a light-shelf may in some circumstances increase the energy consumed by lighting devices as well as by heating and cooling devices. Therefore, more studies and technology development may need to be performed to solve the problem of increased energy consumption at the winter solstice.

Study on relationship between milk intake and prevalence rates of chronic diseases in adults based on 5th and 6th Korea National Health and Nutrition Examination Survey data (제 5기, 6기 국민건강영양조사 자료를 활용하여 성인의 우유 섭취와 만성질환 유병률 사이의 관련성 연구)

  • Kwon, Sehyug;Lee, Jung-Sug
    • Journal of Nutrition and Health
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    • v.50 no.2
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    • pp.158-170
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    • 2017
  • Purpose: The purpose of this study was to explore the relationship between milk intake and prevalence rates of chronic diseases using KNHANES data, and the significance of the relationship was tested based on meditators, socioeconomic status (income, education), dietary behaviors (smoking, alcohol drinking, breakfast, and eating out), and physical activity (walking, medium, and high). Methods: Using the 5th and 6th survey data of KNHANES, milk intake rates and presence of seven chronic diseases were summarized and analyzed by ANOVA for two groups of adult men and women as follows: hypertension, hypertriglyceridemia, low HDL-cholesterol, diabetes, abdominal obesity, obesity, and metabolic syndrome. The dependent variables for the presence of seven chronic diseases regressed with socioeconomic, dietary behavior, and physical activity variables according to Logistic models. The dependent variables for milk intake using predictor variables of socioeconomic, dietary behaviors and physical activity were analyzed according to Logistic models. Finally, the significant socioeconomic, dietary behavior, and physical activity variables in the above model along with milk intake as a control variable or mediator variable regressed with significant chronic diseases according to Logistic models. Results: Milk intake, socioeconomic status, dietary behaviors, and physical activity were significantly different among the two groups of adult men and women, which were also critical factors to the prevalence of chronic diseases. The dependent variable for prevalence of chronic diseases regressed with significant factors of socioeconomic status, dietary behavior, and physical activity variables according to chronic diseases using the control or mediator variable of milk intake and summarized as follows: For adult men, milk intake controlled the education effect on diabetes partly, alcohol on hypertension and hypertriglyceridemia, low HDL-cholesterol, metabolic syndrome, breakfast on metabolic syndrome, eating out on obesity, and medium physical activity on hypertriglyceridemia. For adult women, household income on hypertriglyceridemia, diabetes, abdominal obesity, education level on hypertension, alcohol drinking, eating out, and walking activity on abdominal obesity, alcohol, breakfast, eating out, walking activity on low HDL-cholesterol, and medium physical activity on hypertriglyceridemia and low HDL-cholesterol were partly controlled by milk intake. Other significant socioeconomic status, dietary behavior, and physical activity variables related to prevalence of chronic diseases were fully controlled or mediated by milk intake. Conclusion: This study shows that milk intake (daily more than 200 g) prevents chronic diseases such as hypertension, hypertriglyceridemia, low HDL-cholesterol, diabetes, obesity, abdominal obesity, and metabolic syndrome.

A Study on the Causes and Consulting Methods to Reduce the Differentiation of Incubator Center (창업보육센터의 보육요소 격차 해소를 위한 변인도출 및 컨설팅 고찰)

  • Yim, Heon-Wook
    • Journal of Convergence for Information Technology
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    • v.8 no.1
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    • pp.313-320
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    • 2018
  • The purpose of the study is to suggest ways to reduce the difference in occupancy rate and cost of incubation centers and surveyed 262 business disclosures of KBIA. the region, the subject of management, and the technology field are set as independent variables among the management disclosure items, and the occupancy rate, cost, and assigned grade are defined as dependent variables. As a result of the correlation analysis, it was found that about 19.4%($R^2=0.194$) and about 7.0%($R^2=0.059$) explain the cost of the operation, Respectively. finally Costs are high in metropolitan areas, public organizations and technology-intensive centers are inexpensive, occupancy rates are high in government and universities, and low in large cities. In order to resolve the gap, $5,720won/m^2$ is appropriate, and the center operates as a technology-intensive specialization center.

Fractional Anisotropy of Diffuse Tensor Imaging of Normal Subjects in the Regions of the Brain White Matter According to Age and Body Mass Index (BMI) (연령과 체질량지수(BMI)에 따른 뇌 백질 부위의 정상인 확산텐서영상 비등방도에 대한 연구)

  • Jeong, Jae Beom;Kwak, Jong Hyeok;Kim, Dong Hyeon
    • Journal of the Korean Society of Radiology
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    • v.12 no.2
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    • pp.253-260
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    • 2018
  • Diffusion tensor images were obtained to investigate the damage of brain white matter in non-smokers and an adequate drinking group (less than 10 points) selected by scores of the Korean versions of alcohol use disorders identification test questionnaire. Factional anisotropy (FA) values, according to the variables of age and body mass index (BMI), were not statistically significant in all regions of the brain white matter after measurement of factional anisotropy (FA) values by the tract-based spatial statics (TBSS) method. In other words, age and body mass index (BMI) do not significantly affect the microstructural changes of the brain white matter.

Variables that Affect Selective Optimization with Compensation (SOC) for Successful Aging Among Middle-Class Elderly (성공적인 노화를 위한 선택.적정화.보상책략 관련 변인 연구 -중산층 노인을 중심으로-)

  • 하정연;오윤자
    • Journal of Families and Better Life
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    • v.21 no.2
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    • pp.131-144
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    • 2003
  • Selective Optimization with Compensation (SOC), a concept defined by Baltes and Baltes, is known to predict successful aging. This study was conducted to find out which factors affect Korean elderly people SOC The data for this study were obtained from a survey conducted between March and May 2001, on a sample of middle-class male and female participants over 60 years old. Two hundred and fifty four completed questionnaires were used for final analyses. Descriptive statistics, t-test, ANOVA, Duncan test, Pearson correlations, multiple regressions, multiple response frequencies and sequential threshold methods were used to analyze the data. In order to measure successful aging, the Selective Optimization with Compensation Scale developed by Baltes, Baltes, Freud, and Lang (1996) was used. The SOC scale consists of four subscales, Elective Selection, Loss-based Selection, Optimization, and Compensation. The major findings are summarized in the following. First, the level of SOC by various socio-demographic variables was examined. It tuned out that health status is the most important variable in predicting SOC. Also important was satisfaction with family life. Second, significant correlations were found between SOC and duration of the marriage (negative), practicing a religion, health, and economic stability (all positive). Third, religion and health status affected SOC, but health was a stronger predictor Those who practiced a religion and were healthy had a higher score in SOC as a whole. Fourth, the participants were divided into three groups by their SOC score, and their idea.; of successful aging were compared. The top- and middle-score groups considered satisfaction with family life to be more important, whereas the bottom-score group regarded the social status as more important.

Middle-aged Women's Health-related Preparation for Elderly Life - On centering culture centers in Daegu-city (중년여성의 건강관련 노후준비 -대구광역시 문화센타를 중심으로-)

  • Bae, Yun-Jo;Kong, Soon-Hee
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.10
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    • pp.6250-6257
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    • 2014
  • This study examined the preparation for elderly life in terms of health for aging and the related factors in the community (part of Daegu). The data of 391 middle-aged women in this study were collected from 4 culture centers. The interviews were conducted from March 1 until March 25 in 2011 using a structured questionnaire. The data was analyzed by descriptive statistics and logistic regression analysis using the IBM SPSS Statistics 20 program. The variables in preparation for elderly life regarding their health were exercise, good nutrition, proper sleep, and health examination. From the data, the preparation for elderly life regarding middle-aged women's health for successful aging was identified. Therefore, health service programs and healthy environment should be varied based on the result of this study.