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      • 태권도장의 적극적 경영을 위한 조사 연구

        유관호 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.2

        The purpose of this study was to grope for a positive management program of the Taekwondo gymnasium through research on the actual condition of the Taekwondo gymnasium users. To examine factors of groping for a positive management program, the questionnaire was used. The 225 subjects who use 8 Taekwondo gymnasium in 2 sectors were selected. The result of the analysis which was about the users' aging, a ratio of sex distinction, the motive of the choice, travel method and the time required, purpose of taking lesson, degree of participation, period of taking lesson, exercise program type, the condition coach, and the amount expended of a month were as follows: First, the users' aging was shown as 10 to 12(56%, elementary school students), 13 to 15(26.22%, middle school students) and the ratio of men was higher than the ratio of women. Second, the users used the Taekwondo gymnasium as choice of him/herself(68.89%) and invitation of their family, and thy learned to keep their health. Third, the users went to the Taekwondo gymnasium on foot and it took into 10 minutes and 20 minutes. Fourth, the users went to the Taekwondo gymnasium 4 to 5 days(44%) and 2 to 3 days (41.33%) of a week and exercised after 18 o'clock(49.78%) and between 14 and 18 o'clock(35.56%). Fifth, the users thought much of exercise program(26.67%), coach(26.22%) and facilities(18.22%), and wanted efficiency(35.11%) and excitement(26.67%), and the sex distinction of a coach was shown as no concern(52.44%) and preference a man(38.67%). Sixth, the users paid out under 70,000won in a month(80.89%) to the Taekwondo gymnasium and they paid out under 100,000won(83.56%) in exercising including.

      • KCI등재후보
      • KCI등재

        사건-의존 미래기억이 동시진행 과제 수행에 미치는 영향: fMRI 연구

        유관호,서창원,김초복 한국인지및생물심리학회 2005 한국심리학회지 인지 및 생물 Vol.17 No.1

        We conducted three experiments investigating whether event-based prospective memory(PM) demanded cognitive processing resources and confirming the brain regions involved in this process. In Experiment 1, we found that, in PM task adding, the performance of ongoing verbal working memory task was decreased. It showed that PM demanded cognitive processing resources. In experiment 2, we compared the intentional executive PM condition with the control condition demanding only the verbal working memory task; we also compared the intentional maintaining PM condition without real execution with the same control condition. In both intentional executive and maintaining PM conditions, the performances of verbal working memory were lower than the control condition. This showed that results of experiment 1 were not simply from additional responses and both intentional execution and maintenance of PM demanded cognitive processing resources. Experiment 3 investigated the brain regions involved in intentional maintenance and execution of PM using the functional Magnetic Resonance Imaging (fMRI). We observed that the prefrontal and cingulate cortices were activated by PM performance, the basal ganglia were activated by intentional executive PM, and the prefrontal and parietal cortices were activated by intentional maintaining PM. These results agree with the insistence of Smith(2003) that both intentional maintenance and execution of PM are not automatic but demand conscious processing resources. 사건-의존 미래기억(prospective memory, PM)이 인지적 처리 자원을 요구하는 과정인지 여부를 살펴보고 이에 관여하는 뇌영역을 확인하기 위해 세 편의 실험을 수행하였다. 실험 1에서는 PM 과제가 부가될 경우 동시진행 과제인 음운 작업기억 수행이 낮아지는 결과를 얻었다. 이는 PM 수행이 인지적 처리자원을 요구하는 과정임을 말해준다. 실험 2에서는 PM의 집행 조건과 음운 작업기억만 수행하는 통제 조건을 비교하고, 실제 수행은 하지 않고 PM의 의도를 유지만 하는 조건을 통제 조건과 비교한 결과 PM 의도 집행 조건과 의도 유지 조건 양자에서 통제 조건에 비해 음운 작업기억 수행 수준이 낮았다. 이는 실험 1의 결과가 단순한 반응추가로 인한 것이 아니며, PM 의도 집행과 유지 과정 모두 인지적 처리 자원을 요구하는 것으로 볼 수 있다. fMRI를 이용하여 PM 의도의 유지와 집행에 관여하는 뇌영역을 확인하고자 한 실험 3에서는 PM 수행시 전전두엽과 대상회의 활성화를, 의도의 집행에는 기저핵의 활성화를, 그리고 의도의 유지에는 전전두엽과 두정엽의 활성화를 관찰하였다. 이상의 실험 결과는 사건-의존 PM 의도의 유지와 집행은 자동적인 처리가 아닌 의식적인 처리자원을 요구하는 과정이라는 Smith(2003)의 주장과 일치한다.

      • 최대근력부하와 폭발적 근력부하에 의한 신경-근피로와 그 회복과정 비교 분석

        유관호,이무연,이승훈,김민섭,육조영,임정일,임완기,김대경 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.5

        The result which was gained from this study is as follows. From the conclusion of this study it was confirmed that resistant motion at high level strength brings about rise in density of lactate in blood at the same time decline of muscular power and generates acute fatigue of nerve-muscle accompanied by decline in electrical activity of muscle. On the other hand explosive loading produced fatigue at body center and decline in nervine-muscular activity particularly for men, In case of women explosive load did not produce fatigue in the same level as men and they were also quicker in recovery after exercise. Based on 2 types of loading method used in this study there was clearly difference in the process of restoration from resistant motion. For greater decline in muscular power and electromyogram activity more longer period of recovery was require.

      • KCI등재

        모델 불확실성을 갖는 이차 오실레이터에 대한 근사화된 최대 시간 교란 신호 설계

        유관호 대한전기학회 2003 전기학회논문지 D Vol.52 No.4

        - In this paper we propose a disturbance design method to test a system's stability. It is shown that the time maximum disturbance is represented in bang-bang and state feedback form. To maximize the time severity index, the value of disturbance is determined by the associated switch curve. The original switch curve is vulnerable to model uncertainties and takes much calculation time. We propose an improved method to approximate the original switch curve. This reduces the computational time and implements sufficiently to test the stable system. Simulation results show how the approximate switch curve can be used to stress a system by driving it to oscillation along the maximum limit cycle.

      • 주 5일 수업에 대한 고등학생들의 여가활동 조사 연구

        유관호,정순광,김판규 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.6

        This study was to find out the way how high school students have participated in current leisure activities recently and to suggest directions to activate leisure activities efficiently in case of weekly 5-school day system. The subjects for this study were male and female students who were working at 8 high school in Seoul. The simple random sampling was used to collect the data. In this study, total 400 questionnaires were distributed and 397 were used for the analysis. For data analysis, SPSSWIN(Statistical Package for Social Science for Window) 10.0 was used. Especially, frequency analysis, independent t-test, one-way ANOVA and Scheffe's multiple range test were used. The results of current leisure participation by high school students are come out as the following: Boy students laid stress on leisure activities themselves but girl students thought leisure facilities important. During leisure activities, boy students spent time with their friends or by themselves while girl students did it with their friends or families. On weekdays and holidays, boy students were spending most of their time doing things for pleasure(like playing Baduk and reading cartoons) or for fulfilling their interests (like taking pictures), but girl students were doing things for pleasure or for social interaction. In spending leisure time, the high school students in their first year spent below 1 hour and those in their second year spent about 2 hours. Healthy students' perception for leisure activities were shown stronger than those for weak students. Healthy students did leisure activities to enjoy their lives while weak students did them in order to get rid of stress. The college entrance system was chosen as a big obstacle to enjoy their leisure activities for all sampled groups. The results of the analysis about leisure activities in case of proceeding with weekly 5-school day system are the following: During weekdays and holidays, boy students wanted to do sport activities and girl students wanted to enjoy sightseeing and cultural activities. Boy students and second year students wanted a billiard room to be installed in school while girl students and first year students wanted a lounge. Boy students spent most of their leisure time at home or in a PC room, while girl students did at home, in a park or a playground. On holidays, high school students in their first year wanted to do sports activities while those in their second year wanted to go to the cultural facilities or do sports activities. During a vacation, first year students wanted to do sports activities and things for pleasure, but those in second year wanted to enjoy sightseeing and cultural activities. I'd like to suggest some desirable directions for leisure activities based on the analysis of the survey result: First, by improving college entrance system, make high schools become places which students can learn with the whole person education. Second, by develope active and energetic programs in leisure activities, make students get a lot of experience of life and build more leisure facilities. Third, since boy students prefer sports activities and girl students are interested in tour or sightseeing in case of weekly 5-school day system, it's necessary to study how to cope with the situation.

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