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RISS 인기검색어
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- 저자 : 전기영 ( Jeon Ki Young ) (검색결과 3 건)
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유도선수들의 다차원적 완벽주의 성향과 스트레스 및 운동지속의도의 관계
전기영(Jeon, Ki-Young),조선령(Cho, Sun-Lyoung) 한국체육과학회 2018 한국체육과학회지 Vol.27 No.3
The purpose of this study was to identify the relationship among Judo athletes’ multidimensional perfectionism, stress, and exercise continuance. To this end, Judo athletes, who registered in Korea Judo Association, were selected. The sample size used in convenience sampling, insincere materials being excluded, was 275. The reliability of the questionnaire showed =.882~907. Statistical methods used in analysis were frequency analysis in order to identify inter-item consistency, reliability verification, and correlation analysis using SPSS 21.0 program. Moreover, this study conducted confirmatory factor analysis and structural equation analysis using AMOS 20.0 program in order to verify the research hypothesis. Through these research methods and procedures, the following results were drawn. First, Judo athletes’ multidimensional perfectionism had a positive influence on stress. Second, Judo athletes’ multidimensional perfectionism had a positive effect on exercise continuance. Third, Judo athletes’ stress had a negative influence on exercise continuance. These results implied that Judo athletes’ perfectionism is important for their exercise continuance, but also it might cause stress because they had difficult goals for themselves and environment.
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유도 경기규칙 개정에 따른 경기내용분석: 2016년 리우올림픽과 2020년 도쿄올림픽 비교
이혜수 ( Lee Hye Su ),강성기 ( Kang Seoung Ki ),김은희 ( Kim Eun Hee ),전기영 ( Jeon Ki Young ) 한국체육학회 2022 한국체육학회지 Vol.61 No.1
본 연구는 유도 종목의 경기규칙 개정에 따라 경기내용이 어떻게 변화하였는지 확인하기 위해 2016년 리우올림픽(429경기)과 2020년 도쿄올림픽(426경기) 대회를 비교 분석하였다. 자료처리는 빈도분석과 백분율(%), 교차분석(χ²)을 실시하였으며 통계적 유의수준은 ⍺=.05로 설정하였다. 연구결과 여자선수들의 득점유형에서는 차이가 나타났지만(p<.001), 남자선수들은 차이가 나타나지 않았다(p=.165). 기술득점경기의 점수유형에서는 남ㆍ여 모두 차이가 나타났으며(p<001. p<.001) 벌칙득점경기의 점수유형에서도 남ㆍ여 모두 차이가 나타났다(p<.001, p<.001). 남자선수(34.7%)와 여자선수(17.2%) 모두 ‘골든스코어’ 경기가 증가하였다. 본 연구의 결과를 요약하면 첫째, 남ㆍ여 선수 모두 기술득점경기는 증가하고 벌칙득점 경기는 감소하여 긍정적인 결과를 나타냈지만 남자선수들의 경우 한판승 경기가 감소하였다. 둘째, ‘지도’가 승패를 결정할 수 없는 규정으로 인해 남ㆍ여 선수 모두 골든스코어 경기가 급격히 증가했다. 셋째, 남자선수들은 경기시간이 단축됨으로 연장전 경기가 증가되고 이로 인해 ‘한판’이 감소하였다. 결론적으로 국제유도연맹이 경기규칙을 변경하므로 긍정적인 유도(Positive Judo)의 목표는 부분적으로 이루었지만 모든 목표가 달성되지는 않았다. 향후 국제유도연맹의 새로운 규칙을 도입할 때 유도 경기내용분석에 대한 연구는 현장에서 유용한 자료로 활용될 것이며 유도 경기분석에 관련된 연구를 지속적으로 모색하여 다가올 2024년 파리올림픽에 기여할 수 있기를 기대한다. This study compared and analyzed the 2016 Rio Olympics (429 games) and the 2020 Tokyo Olympics (426 games) to see how the contents of the event changed according to the revision of the judo rules. For data processing, frequency analysis, percentage (%), and cross-Vaildation (χ²) were performed, and the statistical significance level was set to ⍺=.05. As a result of the study, there was a difference in the scoring patterns of female athletes (p=.001), There was no difference in male athletes (p=.165). There was a difference in the score type of the Positive(p=001. p<.001), and there was a difference in the score type of the Negative for both males and females (p<.001, p<.001). Both male players (34.7%) and female players (17.2%) showed an increase in Golden Score matches. To summarize the results of this study, First, both male and female players increased Positive and decreased Negative, but it is difficult to interpret this as a positive result because the ippon for male players decreased. Second, due to the rule that ‘Shido’ cannot decide whether to win or lose, both men and women’s and women’s Golden Score matches have increased sharply. Third, due to the shortened game time for male players, overtime matches increased, which resulted in a decrease in ippon. In conclusion, as the International Judo Federation changed its rules of play, the goal of positive Judo was partially achieved, but not all goals were achieved. When introducing new rules by the International Judo Federation in the future, research on judo content analysis will be used as useful data in the field and is expected to contribute to the upcoming 2024 Paris Olympics by continuously seeking research related to judo analysis.
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철도차량장치의 점착력 추정에 의한 Anti-Slip 제어
김길동(Gil-Dong Kim),이호용(Ho-Yong Lee),안태기(Tae-Ki Ahn),홍재성(Jai-Sung Hong),한석윤(Suk-Youn Han),전기영(Kee-Young Jeon) 한국철도학회 2003 철도저널 Vol.6 No.4
In electric motor coaches, the rolling stocks move by the adhesive effort between rail and driving wheel. Generally, the adhesive effort is defined by the function of both the weight of electric motor coach and the adhesive effort between rails and driving wheel. The characteristics of adhesive effort is strongly affected by the conditions between rails and driving wheel. When the adhesive effort decreases suddenly, the electric motor coach has slip phenomena. This paper proposes a re-adhesion control algorithm which uses the maximum adhesive effort by instantaneous estimation of adhesion force using load torque disturbance observer. Based on this estimated adhesive effort, the re-adhesion control is performed to obtain the maximum transfer of the tractive effort.
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