요트선수의 정신력요인 비교 연구 : differences in Age and Performance Level

조대용,엄성호 한국스포츠심리학회 2004 한국스포츠심리학회지 Vol.15 No.1

본 연구는 요트선수들의 심리적 요인강화와 정신훈련을 위한 기초 자료를 제공하기 위해 기술수준과 연령에 따른 정신력을 측정하였다. 정신력요인 측정을 위해 Loehr(1982)가 개발한 Mental Toughness Test(MTT)를 사용하였고 설문지의 문항 내적일치도를 검정하기 위하여 Cronbach's의 α계수를 구하였다. 연구 대상자는 고등부 선수 63명, 대학·일반부 선수 47명으로 총 110명(우수 20명, 비우수 90명)이었다. 요트선수의 기술수준과 연령에 따른 정신력요인을 비교, 분석하기 위해 유의수준 .05에서 이원변량 분석한 결과 다음과 같은 결론을 얻었다. 첫째, 자신감요인의 평균치 차이 검증결과, 기술수준별 에서는 유의한 차이가 나타나지 않았고 연령별 부분에서 유의한 차이가 나타났다. 둘째, 각성조절요인의 평균치 차이 검증결과, 기술수준별 에서는 유의한 차이가 나타나지 않았고 연령별 부분에서 유의한 차이가 나타났다. 셋째, 집중력조절요인의 평균치 차이 검증결과 기술수준별 에서는 유의한 차이가 나타나지 않았고 연령별 부분에서 유의한 차이가 나타났다. 넷째, 시각 및 이미지조절요인의 평균치 차이 검증결과 기술수준, 연령별부분 모두에서 유의한 차이가 나타나지 않았다. 다섯째, 동기수준요인의 평균치 차이 검증결과 기술수준별 에서는 유의한 차이가 나타나지 않았고 연령별 부분에서 유의한 차이가 나타났다. 여섯째, 적극적 에너지요인의 평균치 차이 검증결과 기술수준별 에서는 유의한 차이가 나타나지 않았고 연령별 부분에서 유의한 차이가 나타났다. 일곱째, 태도조절요인의 평균치 차이 검증결과 기술수준별 에서는 유의한 차이가 나타나지 않았고 연령별 부분에서 유의한 차이가 나타났다. 이상과 같은 연구 결과를 토대로 요트선수들의 수행 향상을 위해 다음과 같은 사항을 제언하고자 한다. 요트선수들을 위한 심리기술훈련 프로그램 작성 시, 본 연구 결과에서 나타난바와 같이 연령이 많을수록 정신력 하위 요인들의 수준이 좋은 것으로 나타나, 요트선수들을 위한 심리기술훈련을 위해서는 연령이 어린 시기에, 즉 요트를 시작하는 시점부터 정신력 강화 훈련을 시작하는 것이 필요하다고 사료된다. The purpose of this study was examine the Metal Toughness of the yacht player according to the differences in performance level and group. Metal Toughness Test(MTT) by Loehr(1982) was used to measure the mental toughness factors and Cronbach's α coefficient to approve internal correspond of survey lists. The subject of this study were total 110 yacht players, that is, 63 high school players and 47 college and company players (20 excellent players and 90 non-excellent players). Two-way ANOVA in significance level .05 apply to the mental toughness factors for analysis and comparison according to performance level and age in yacht player. Results were as follows: First, in verifying the difference of average value in self-confidence factor, there was no significant difference in performance level, but was in age. Second, in verifying the difference of average value in awakening control factor, there was no significant difference in performance level, but was in age. Third, in verifying the difference of average value in attention control factor, there was no significant difference in performance level, but was in age. Fourth, in verifying the difference of average value in vision and image control factor, there was no significant difference in both performance level and age. Fifth, in verifying the difference of average value in motivation level factor, there was no significant difference in performance level, but was in age. Sixth, in verifying the difference of average value in positive energy factor, there was no significant difference in performance level, but was in age. Seventh, in verifying the difference of average value in attitude control factor, there was no significant difference in performance level, but was in age. To advance the achievement of yacht players, next details are suggested on the basis of this above results. The result shows that the older the players are, the better level of subordinate factors are. But it is necessary that they should start to strengthen mental toughness training from the beginner, who start yacht in very early youth, when making out the program of psychological skill training for yacht players.

PECVD로 증착한 Plasma Polymerized para - Xylene (PPpX) 보호막을 이용한 유기 발광 소자의 수명 향상

조대용,고삼일,심천만,정동근 한국진공학회 2003 한국진공학회 학술발표회초록집 Vol.- No.-

태권도 선수의 성별과 수준별 자기관리전략 비교

조대용(Cho Dae-Yong),엄성호(Um Sung-Ho),김종민(Kim Jong-Min),유정인,이범진(Lee Bom-Jin) 한국코칭능력개발원 2007 코칭능력개발지 Vol.9 No.2

심리기술훈련이 대학축구선수의 경기력결정 심리요인과 운동스트레스에 미치는 영향

조대용 ( Dae Yong Cho ),엄성호 ( Sung Ho Um ) 한국스포츠심리학회 2008 한국스포츠심리학회지 Vol.19 No.4

본 연구는 대학축구선수들을 대상으로 12주간의 심리기술훈련과 4주간의 추적조사를 실시하여 경기력결정 심리요인과 운동스트레스 요인의 효과 및 지속성을 알아보았다. 연구대상자는 비 확률표집방법 중 편의표본추출 방법으로 2007년 대한축구협회에 등록된 U대학 축구 부24명(실험집단=13명, 통제집단=11명)이었으며, 연구 참여자의 개인적 특성을 살펴보면 평균연령(19세-22세)은 20세, 경력(7년-13년)은 10년이었다. 본 연구에서 사용한 측정도구는 질적 분석 방법을 위해 면담과 개방형질문지를 사용하였으며, 양적분석 방법으로는 윤영길이 1999년과 2004에 개발한 대학축구선수의 스트레스 검사지와 축구경기력 결정 심리요인 검사지를 사용하였으며 검사지의 타당도는 4개요인과 6개요인으로 신뢰도는 각각 .817과 .826이었다. 축구선수의 경기력결정 심리요인과 운동스트레스 요인을 비교분석하기 위해 유의수준 .05에서 반복측정 일원분산분석과 심리기술훈련의 지속성을 알아보기 위해 대응표본 t 검증(paired t-test)을 실시한 결과 다음과 같은 결론을 얻었다. 첫째, 대학축구선수의 심리기술훈련을 받고난 후 경기력결정요인이 높아졌다. 둘째, 대학축구선수의 심리기술훈련을 받고난 후 운동스트레스 요인이 낮아졌다. 셋째. 경기력결정 요인의 지속성이 있는 것으로 나타났다. 넷째, 운동스트레스 요인의 지속성이 있는 것으로 나타났다. The present study investigated effects and durability of the psychological factors of determining performance levels and training-related stress through a follow-up study for four weeks after applying twelve weeks of psychological skill training to the university soccer players. Subjects were 24 soccer players at U university who enrolled at the Korea Football Association in 2007 with convenience sampling out of non probability sampling, among whom 13 were assigned to the experimental group while 11 to the control group. For individual characteristics of the subjects, their average age was 20 (19 to 22) and 10 years of playing experiences (7 to 13 years). Among the experimental group, subjects consisted of three freshmen, three sophomores, five juniors and two seniors. Their positions included one forward, seven mid-fielders, four guards, and one goalkeeper. For the control group, subjects consisted of five freshmen, four sophomores, and two juniors. Their positions included four forwards, three mid-fielders, four guards without any goalkeeper. The present study employed interviews and an open-ended question to elicit the qualitative analysis. Also for quantitative analysis, this study used the stress test for university soccer players and test of the psychological factors of determining soccer performance levels developed by Yoon Young-gil in 1999 and 2004, respectively. The validity of the tests included four factors and six factors, and their respective credibility was .817 and .826. To compare and analyze their psychological factors of determining soccer performance levels and the training-stress factors, One-way ANOVA was used repeatedly measured at .05 levels of significance, and to identify their durability of the psychological skill training, paired t-test was used. Results revealed that statistically significant differences were found in the psychological factors related to performance levels, as well as stress-related factors. The results of the follow-up study also indicated that statistically significant differences existed in both psychological and stress-related factors. It was concluded that the psychological skill training has positive impact on the performance of soccer players.

전자클러치를 적용한 워터펌프가 엔진에 미치는 영향 분석

조대용(Daeyong Cho),오희창(Heechang Oh),박정서(Jeongseo Park),배충식(Choongsik Bae) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11

Water pump is operated by engine power from crank shaft. Water pump circulate cooling water in engine to maintain temperature of combustion chamber. Typical water pump is always operated depending on engine rpm. In the early stage after engine starting, warm-up process is began increasing cooling water temperature. But in warm-up process, energy loss is generated until thermal equilibrium condition. To reduce energy loss in warm-up process, electromagnetic clutch is applied to typical water pump. Operation strategy is that water pump is not operated until cooling water temperature in cylinder head reach 85℃. Engine was operated in different condition depends on vehicle speeds. Cooling water temperature and pressure was measured to ensure improvement of engine warm-up process. Fuel consumption rate and exhaust emission was measured to compare different water pump operating strategy. With electromagnetic clutch type water pump, warm-up speed was increased and energy loss from warm-up process was decreased in low speed condition.

중ㆍ고교 펜싱선수를 위한 심리기술훈련 적용 연구

조대용(Cho, Dae-Yong),조성룡(Cho, Sung-Yong),이범진(Lee, Bum-Jin) 한국코칭능력개발원 2011 코칭능력개발지 Vol.13 No.4

남자대학 투기종목선수의 경쟁불안 차이분석

조대용(Cho Dae-Yong),설영환(Seol Young-Hwan),김종민(Kim Jong-Min) 한국체육과학회 2008 한국체육과학회지 Vol.17 No.4

The purpose of this study was to analyze the sports competitive anxiety in the Men's College Martial Arts Athletes based on the martial arts sports, athletic career and amount of weight control. The research are consisted of following subjects. First, Is there any significant differences in competitive anxiety level on the basis of the martial arts sports. Second, Is there any significant differences in competitive anxiety level on the basis of the career of the athletes. Third, Is there any significant differences in competitive anxiety level on the basis of the amount of weight control. The subjects of this study was total 365 athletes (Ssirum 76, Judo 63, Wrestling 45, Taekwondo 124 and Boxing 55) who have registered to 2007 Korea Sports Council in each Sports Associations. The Competitive State Anxiety Inventory-Ⅱ was used for mesure the competitive anxiety level. The test was developed by Martens(1983) and modified by Lee(1993). Data was analyzed by one way ANOVA and the differences in anxiety was tested by Tukey method. The level of α was .05 The results of the study was as follows:First, There was significant differences in competitive state anxiety on the basis of the martial arts sports. Second, There was significant differences in competitive anxiety on the basis of the career of the athletes. Third, There was significant differences in competitive anxiety on the basis of the amount of weight control. In conclusions, to enhance the performances for the martial arts players, the level of competitive sports anxiety should be analyzed and the intervention strategies needed to be adopted for each level of components of the martial arts athletes. Finally, the training for mental and psychological preparations are specifically needed to all martial arts sports players.

축구선수의 자기관리 조사연구

조대용(Cho Dae-Yong) 한국체육과학회 2009 한국체육과학회지 Vol.18 No.2

The purpose of this study was to investigate the differences in soccer players self-management strategies according to gender, classification, level and training time. Total of 532 players(330 males, 202 females) completed a Korean version of self-management survey, validity and Reliability analyses the ASMQ developed by Huh (2003). Statistical analyses were performed with SPSS 12.0 program, the One-way ANOVA and the post-hoc Scheffe′s tests were all performed at the significant level of .05. The results of this study were as follows; In the gender, physical show significant different but interpersonal, training and mental management didn't show significant different. In the classification, physical, training and mental management show significant different but interpersonal management didn't show significant different. In the level, physical, and mental management show significant different but interpersonal training management didn't show significant different. In the training time, physical and training management show significant different but interpersonal and mental management didn't show significant.

워터펌프 사양에 따른 엔진성능해석

조대용(Daeyong Cho),송현우(Hyunwoo Song),오희창(Heechang Oh),박정서(Jeongseo Park),배충식(Choongsik Bae) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11

In this study, water pump pulleys with three different sizes were tested to evaluate effect of water pump system on engine performance. Temperatures and pressures of each part in engine were measured to investigate thermal behavior of cooling water with different pump types. Analysis of engine performance and exhaust gas were conducted. Fuel consumption was measured in each engine operating condition. Finally, experimental results with three types of pump are compared each other to find optimal choice for engine performance. The water pump with smaller size pulley showed longer engine heating time at low speed operation. In contrast, water pump with bigger size pulley showed faster engine heating speed. In fuel consumption, the case of smaller pulley demonstrated lower fuel consumption at medium and high speed; also carbon dioxide and NOx emission was reduced in same case.

PRIDE 핵물질 재고관리 시스템 설계

송대용,노선호,장영국,조일제,박세환,박근일 한국방사성폐기물학회 2014 한국방사성폐기물학회 학술논문요약집 Vol.12 No.2