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본 연구는 정구선수의 소속별 스포츠 상해관련 요인 분석을 하여 최종적으로 정구 지도자와 선수들의 스포츠 상 해에 대한 재활과 향후 대처 방안에 대한 구체적인 정보를 제공하는데 연구의 목적을 두고 실시하였다. 이에 본 연구는 소속별 정구 선수 179명에게 스포츠 상해 특성을 분석하기 위한 설문을 실시하였으며, 설문조사 결론은 다음과 같다. 상해 유형에 관한 분석결과 근육통과 인대손상의 빈도가 높게 나타났으며, 소속별 상해원인 분석결과 환경적인 요소에 서는 소속별 모두 장소에서 상해유발 요인으로는 훈련강도와 훈련방법에서 통계적으로 유의한 빈도에 의한 차이를 보 였다. 재활치료에 관한 분석결과 중 재활치료 장소로 병원과 한의원에서 주 1-2회의 치료횟수에 대한 유의한 빈도 차이 를 보였으며, 상해 후 경기 복귀 기간에 대한 결과는 고등부와 대학부는 1주미만, 일반부는 2-3주에 통계적으로도 유의 한 빈도에 의한 차이를 보였다. 소속별 상해 인식대한 분석결과에서는 고등부는 ‘아니다’ 와 대학부와 일반부에서 ‘그렇 다’ 재 상해에 대한 분석결과에서는 고등부는 ‘없다’ 대학부와 일반부는 ‘있다’에 통계적으로 유의한 빈도에 의한 차이를 보이는 결과를 보였다. 결론적으로 정구 선수들의 스포츠 상해 방지를 위한 기술의 특성을 과학적으로 분석 및 체계적이 며 효과적인 운동 프로그램을 개발 하는데 노력을 하여야 하며, 지도자들 또한 선수들의 상해 예방을 위한 교육 및 훈련 지도가 필요함을 제시하고 있다. The purpose of this study is to analyze sports injury-related factors at each teams in soft tennis players and provide information on rehabilitation and further coping methods for sports injuries for soft tennis coaches and players. A questionnaire survey was conducted with 179 soft tennis players at each teams to analyze the characteristics of sports injuries. The following conclusions were drawn. The result of analyzing injury types showed high frequency in muscle pain and ligament injury. As a result of analyzing injury causes at each teams, first, environmental elements were statistically significantly different in all places at each teams and second, injury causing factors were statistically significantly different in training intensity and training methods. For the results of analyzing rehabilitation, there was a significant difference in frequency in hospital and Oriental medicine clinic for rehabilitation place and once or twice per week for rehabilitation frequency. For the periods for return to play after injury, a statistically significant difference in frequency was found in less than one week for high school and university teams and in 2-3 weeks for general teams. For injury perception at each teams, there was a statistically significant difference in frequency in 'No' for high school teams and 'Yes' in university and general teams. For re-injury at each teams, while there was a statistically significant difference in frequency in 'No' for high school teams and in 'Yes' for university and general teams. In conclusion, efforts should be made to scientifically analyze the characteristics of techniques to prevent sports injuries and develop systematic and effective sports programs for soft tennis players. Moreover, coaches should receive education and training coaching to prevent players’sports injuries.
The purpose of this study is to analyze exercise performance characteristics and blood lipids changes before and after the game in volleyball players in order to suggest basic information about players’ physiological changes and provide and design more effective and scientific training methods. The participants of this study were 15 volleyball players of G University located in Gyeongsangnam-do and of C University located in Gwangju Metropolitan City. Their blood and exercise performance characteristics were analyzed before and after the game. Blood component changes were measured by the paired t-test analysis and the relationship between exercise performance ability and blood lipids were tested by correlation analysis. The level of statistical significance was set at p<.05. Finally, the following conclusions were drawn. First, volleyball playes’s blood lipids changes were analyzed before and after the game. There was a statistically significant decrease in TC(t=3.884, p<.01) and TRG(t=4.273, p<.01) before and after the game. Moreover, there was a statistically significant decrease in Non-HDL(t=3.291, p<.01) and GLU(t=1.847, p<.05) before and after the game. Second, correlation analysis was done to examine the relationship between exercise performance characteristics and blood lipids in volleyball players’ game. As a result, it was found that TC, LDL, and Non-HDL after the game were significantly negative correlation with mean heart rate, mean values of exercise intensity, and calorie consumption(p<.01). In conclusion, volleyball players need high level aerobic exercises for blood lipids changes and plyometric training, interval training, and core balance exercise to build up maximum muscle strength for short period to improve performance levels through exercise performance. It is, therefore, necessary to develop scientific and effective programs for volleyball players.
This study aims to analyze the difference in muscle strength for the characteristics of skill use(main and sub) and skill performance(hitting and non-hitting) and provide basic information to improve player’s performance. This study analyzed and measured core strength difference in 38 ball game players of C University in Gwangju Metropolitan City using 3D spine stabilization test(CENTAUR® 3-D System): Handball(n=16), basketball(n=8), tennis(n=3), and volleyball(n=11). Then, paired t-test analysis was conducted to test the strength changes of ball game players according to the characteristics of skill use and skill performance. The statistical significance level was set at p<.05. As a result of this study, The changes of core strength according to the characteristics of skill use(main and sub) in collage ball game players focused on the skill use of players(right-handed) participating in the experiment. There was a statistically significant difference in 0°, 35°, 90°, and 135°. For the changes of core strength according to the characteristics of skill performance(hitting and non-hitting) in collage ball game players, there was no statistically significant difference in 0°, right, 45°, left, 135°, and right, 135°. However, there was a statistically significant difference in right, 180°, left, 45°, left, 90°, and right, 90°. Based on the findings, further research is required on exercise programs that can reduce danger of sport injury and improve core strength and balance more effectively according to the general characteristics of skill use(main and sub) and skill performance(hitting and non-hitting) in college ball game players.
This study conducted aerobic exercise and core stabilization exercise twice per week for 12 weeks with 20 men and women who attended a general physical education course for health and body shape care in S University. The purpose was to investigate the effects of the class on health fitness such as body composition and muscle strength(grip strength, back strength, and leg strength), cardiovascular endurance(12-minute run), balance(standing on one leg with eyes closed), and flexibility(trunk forward flexion and shoulder flexibility). Finally, the following conclusions were drawn. The health fitness care class for 12 weeks reduced weight and body fat percentage and had a positive effect on body composition in college men and women. It also improved muscle strength, cardiovascular endurance, flexibility, and balance and had a positive effect on health fitness. Therefore, the health fitness care class conducted twice per week for 12 weeks will positively change body composition and health fitness in college students and play an effective role in preventing diseases such as metabolic syndrome and lifestyle diseases. Moreover, it will be helpful for college students to enjoy healthy life after adulthood as well as during college by building up correct exercise habit and supplying insufficient exercise volume. 본 연구는 S 대학교 건강체력관리 교양 체육 수업을 수강하는 남․여(20명) 대학생을 대상으로 12주 동안 주 2회유산소운동과 코어안정화운동을 수행하여, 신체조성 및 근력(악력, 배근력, 각근력), 심폐지구력(12분 달리기), 평형성(눈감고 외발서기), 유연성(좌전굴, 어깨유연성) 등의 건강관련체력에 미치는 영향에 대해 검증하고자 하였다. 12주간의 건강체력관리 수업은 남․여 대학생들의 체중, 체지방율을 감소시켜 신체조성에 긍정적인 영향을 가져왔으며, 근력, 심폐지구력, 유연성, 평형성을 개선하여 건강관련체력에도 긍정적인 효과를 가져왔다. 따라서 12 동안 주 2회 실시하는건강 체력관리 수업은 대학생들의 신체조성과 건강관련체력을 긍정적으로 변화시켜 대사증후군 및 생활습관병 등 각종 질환 예방에 효과적인 역할을 할 것으로 생각되며, 나아가 대학생들의 올바른 운동습관 및 부족한 운동량 확보를 통하여대학시기 뿐만 아니라 성년기 이후의 삶을 건강하게 유지하는데 도움을 줄 것으로 기대된다.
최근 기상이변으로 가뭄과 홍수, 폭설 등 자연재난이 전 세계적으로 빈번하게 발생하고 있고, 우리나라도 예외는 아니어서 일 강수량이 300mm가 넘는 집중폭우의 횟수도 증가하고 있다. 특히 지난 해 한반도 지역의 아열대성 기후변화로 인해 잦은 국지성 폭우와 태풍 등 물재해로 인명과 재산피해가 점증하고 있다. 2012년 7월에 발생한 제7호 태풍 '카눈'을 시작으로 잇따른 초대형 태풍 '덴빈', '볼라벤', '산바'는 태풍이 북상하여 중부지방 중심 전국적으로 많은 비를 내렸으며 경기 및 강원 북부 일부 지방은 관측 강우량을 경신하였다. 홍수기 시 수자원 운영에 미치는 댐, 보 수문자료의 활용을 통해 홍수분석 등에 활용됨으로써 홍수분석 의사결정 시 신속하게 대응할 수 있는 물 관리 시스템에 대한 요구가 높아지고 있는 실정이다. 이에 K-water에서는 최신 ICT 기술을 융합한 "실시간 수자원정보시스템"을 구축 운영하여 24시간 365일 상시 모니터링함으로써, 2012년에 과거 유래 없는 4개의 대형 태풍이 한반도에 상륙하였을 때에도 안정적으로 시스템을 운영하면서 신속하게 대응할 수 있었다.
The purpose of this study is to analyze the effects of limited sports activities caused by COVID-19 on blood pressure and blood lipid components in the elderly and provide basic data for the elderly’s health. This study analyzed changes in weight, BMI, blood pressure, and blood lipid two years after COVID-19 in the elderly(n=42) who participated in the exercise program of the health class for the elderly before COVID-19. The paired t-test was conducted with the whole subjects to compare a difference in each factor before and after COVID-19. Two-way repeated measures ANOVA was performed to analyze a difference between period and group by group before and after COVID-19 in elderly men and women groups. The level of statistical significance was set at p<.05. The following conclusion was drawn. There was no statistically significant difference in weight, BMI, DBP, LDL, HDL, and TG before and after COVID-19 in all the elderly. However, their systolic blood pressure(SBP), glucose, and TC were significantly increased. The elderly men’s results were analyzed before and after COVID-19. There was no statistically significant difference in weight, BMI, DBP, glucose, TC, LDL, and TG. However, SBP was significantly increased and HDL was significantly decreased. For the elderly women, there was no statistically significant difference in weight, BMI, DBP, glucose, LDL, HDL, and TG. However, SBP and TC were significantly increased. There were no significant between-group differences for the elderly men and women groups before and after COVID-19. Based on the findings, it is necessary to develop exercise programs and build up educational system to resolve the negative effects of limited physical activities and exercise participation on the elderly’s health due to prolonged COVID-19. It is suggested that further study should be conducted to analyze changes in physical fitness caused by COVID-19 in the elderly.
Flexible OLEDs are regarded as one of the most promising candidate for flexible displays. The water vapour transmission rate (WVTR) of the polymer substrate is substantially below the requirement for OLED applications because of OLED devices are very sensitive to moisture. Due to sensitivity to moisture and oxygen, OLED are easily oxidized and crystallized by exposure to external environment. These effect a directly lead to the formation of dark spots, which are known as nonemissive regions. The use of optically clear resin using rubber will supply not only flexibility but also water barrier property to the commercial device in the flexible display applications. In this paper, the rubber based adhesives with extremely low WVTR, high adhesive strength, and high optical transparency are discussed. The newly developed Rubber based adhesives are investigated as an optically clear resin of the thin film encapsulation for organic devices with high water barrier property and high adhesion strength between the device and water barrier film.