중등학교 육상선수의 코치지지와 스포츠 자신감 및 학교생활 적응의 관계

차정근(Cha, Jung-Keun),윤찬수(Yoon, Chan-Soo) 한국체육과학회 2021 한국체육과학회지 Vol.30 No.2

This study seeks to empirically analyze the structural relationship between coaching, confidence, and adaptability to school by understanding how confidence mediates the system as a whole. A group of middle school-high school athletes registered under KAAF as of 2021, were selected for convenience sampling. The final analysis includes a sample group of 250 students. The collected data was analyzed using a statistics program called SPSS 21.0 and AMOS 21.0 to conduct frequency analysis, exploratory factor analysis, credibility analysis, one dimensional confirmatory factor analysis, correlation analysis, structural equation modeling analysis. The deduced results are as follows. First, coaching an athlete showed a significant level of impact on his/her confidence. Second, coaching an athlete showed a significant level of impact on his/her adaptability to school. Third, an athlete’s confidence showed a significant level of impact on his/her adaptability to school. Lastly, the athlete’s confidence was shown to have a mediated effect on the relationship of coaching, confidence, and adaptability to school.

육상선수가 지각한 지도자 공정성과 운동행동의 관계에서 운동지속의 매개효과

차정근(Cha, Jung-Keun),윤신혜(Yoon, Sin-Hye) 한국체육과학회 2020 한국체육과학회지 Vol.29 No.4

The purpose of this study was to investigate the relationship between the coach"s justice perceived by track and field athletes and sport behavior as well as the mediating effects of exercise adherence in the relationship between the coach"s justice and sport behavior. In order to achieve this goal, a survey was conducted on 250 track and field athletes in high school, university, and business team that completed athlete registration in The Korea Association of Athletics Federations in 2020 and frequency analysis, confirmatory factor analysis, correlation analysis, path analysis that applied structural equation model, and bootstrapping analysis were used as the data processing method. The following are the results of this study. First, the coach"s justice perceived by the track and field athletes caused an influence on exercise adherence. Second, the coach"s justice perceived by the track and field athletes caused an influence on the sport behavior. Third, the exercise adherence of the track and field athletes caused an influence on the sport behavior. Fourth, in the relationship between the coach"s justice perceived by track and field athletes and sport behavior, exercise adherence had partial mediating effects.

체육고등학교 학생선수들의 지도자 코칭지식 지각이 경기력에 미치는 영향

차정근(Cha, Jung-Keun),조욱상(Cho, Ook-Sang) 한국체육과학회 2017 한국체육과학회지 Vol.26 No.2

The purpose of the study was to analyze the relationship between elite sport centered high school students’ perspective on coach’s knowledge and their athletic performance. Total 260 student athletes in a elite sport centered high school that is located at an urban area participated in the study. The survey for collecting data related to subjects’ perspective on coach’s knowledge and athletic performance level were designed by modifying questions of existed survey that previous research studies designed. Total 242 survey that provide answers to all questions were applied to data analysis. In order to secure construct validity and reliability of the applied survey, confirmatory factor analysis was conducted. Also, Pearson’s corelation analysis was employed to analyze the relationship among variables. Based on the results of data analysis there is a statistically significant relationship between elite sport centered high school students’ perspective on coach’s knowledge and their athletic performance. Also, a strong correlation among the most sub-categories of coaching knowledge and athletic performance was detected.

체육고등학교 학생선수가 인지한 지도자의 코칭지식과 리더십이 운동행동에 미친 영향

차정근(Cha, Jung-Keun),조욱상(Cho, Ook-Sang) 한국코칭능력개발원 2017 코칭능력개발지 Vol.19 No.3

체육 중·고등학교 감독교사와 학생선수 간 상호작용과 학교생활 적응 및 운동 몰입의 관계

차정근(Cha, Jung-Keun),최유리(Choi, You-Lee) 한국체육과학회 2020 한국체육과학회지 Vol.29 No.6

This study seeks to analyze the relationship between the interaction of Physical Education instructor coach and student player and its impact on their adaptability to school and commitment to physical activity. A group of students players from a middle-high school that specializes in physical education in S city were selected for convenience sampling. The final analysis includes the sampling of 250 students. The collected data was analyzed using a statistics program called Windows SPSS PC+ 22.0 Version and AMOS 22.0 to conduct frequency analysis, exploratory factor analysis, one dimensional confirmatory factor analysis, credibility analysis, correlation analysis, structural equation modeling analysis, and bootstrapping analysis. The deduced results are as follows. First, the interaction between the Physical Education instructor coach and student player shows a significant level of attentive impact on the students’ adaptability to school. Second, the interaction between the Physical Education instructor coach and student player does not show a significant level of attentive impact on the students’ commitment to physical activity. Third, the students players’ adaptability to school has a significant level of attentive impact on their commitment to physical activity. Lastly, the relationship between the interaction of Physical Education instructor coach and student player and the students players’ commitment to physical activity has a mediated effect on their adaptability to school.

육상 혼성경기 선수의 핵심역량 탐색

윤찬수 ( Yoon Chan-soo ),차정근 ( Cha Jung-keun ) 한국체육학회 2021 한국체육학회지 Vol.60 No.3

이 연구의 목적은 육상 혼성경기 선수의 핵심역량 형성과정과 구성요인을 총체적으로 분석하는데 있었다. 이러한 연구목적을 달성하기 위하여 연구 참여자 선정 과정에서 육상 혼성경기 선수의 5년 이상 경력, 국가대표 및 상비군 경력, 국내·외 입상 경력을 고려하였으며, 이에 따라 10종 경기 선수 3명, 7종 경기 선수 3명, 총 6명의 우수한 혼성경기 선수를 연구참여자로 선정하여 질적 연구를 수행하였다. 연구에 필요한 심층면담은 2020년 1월부터 2021년 2월까지 이루어졌으며, 심층면담의 방법은 반구조화된 면담과 구조화된 면담을 혼용하였다. 심층면담과 문서자료를 통해 수집한 자료는 Spradley(1980)의 영역분석과 분류분석을 수행하였다. 또한 자료의 수집 및 분석과정에서 연구의 진실성과 윤리성을 지속적으로 검토하였다. 이 연구에서 도출된 연구 결과는 다음과 같다. 첫째, 육상 혼성경기 선수의 핵심역량 형성과정은 ‘자신을 인내하며 성장하는 시간’, ‘끝없는 배움의 길’, ‘선수 경력에 의한 자기성찰’, ‘종목별 협업 훈련과정’ 이었다. 둘째, 혼성경기 선수의 핵심역량은 ‘선수 자기관리 능력’, ‘종목별 전문체력 발현 능력’, ‘선수 전문지식·정보처리 능력’, ‘선수 수행능력’으로 분석되었다. 이는 혼성경기 선수의 효과적인 자기관리와 경기력 향상에 많은 영향을 미치는 총체적 능력이었다. The purpose of this study was to comprehensively analyze the formation process and components of track and field medley-game athletes’ core competencies. For this purpose, a total of 6 excellent medley-game athletes (3 decathlon athletes and 3 heptathlon athletes with experience as track and field medley-game athletes for over 5 years, reserve members of national teams and award-winning athletes in domestic and international competitions) were selected as study subjects for qualitative analysis. In-depth interviews necessary for the study were conducted from January 2020 through February 2021 and a mixture of semi-structured interviews and structured interviews was used as the method of in-depth interviews. Domain analysis and classification analysis devised by Spradley (1980) were conducted on the data collected through in-depth interviews and documentations. In addition, integrity and ethicality of the research were continuously reviewed during the whole process of data collection and analysis. The research findings drawn out from this study are as follows; First, the formation process of track and field medley-game athletes’ the core competencies was ‘Time of enduring oneself and grow up’, ‘Road of endless learning’, ‘Self-reflection during athletes’ careers’ and ‘Process of collaborative training by sport’. Second, medley-game athletes’ core competencies were analyzed to be ‘Athlete’s Self-management ability’, ‘Ability to manifest professional physical strength by sport’, ‘Athlete’s ability to process expertise and Information ‘and ‘Athlete’s performance ability’, which are overall abilities that exert a great influence on the track and field medley-game athletes’ effective self-management and improvement of their performances.

Bessel와 Chebyshev 함수를 이용한 동시 추정에 관한 기법

강석진(Suk-Jin Kang),차정근(Jung-keun Cha),윤호태(Ho-Tae Yoon),고진환(Jin-Hwan Koh) 한국정보과학회 2003 한국정보과학회 학술발표논문집 Vol.30 No.1C

전자계 산란의 시간영역 신호는 대응하는 주파수 영역 응답에 대해서도 동시에 효율적인 방법으로 나타낼 수 있는 이유는 다항식의 직교하는 성질 때문이다. 직교 다항식을 이용함으로써, 이른 시간과 낮은 주파수 영역을 동시에 추정할 수 있다. 그 접근법은 CGM(Conjugate Gradient Method)방법과 간단한 DFT(Discrete Fourier transform)에 의거한다. 본 논문에서는 Bessel-Chebyshev 함수를 이용한 이른 시간과 낮은 주파수영역 응답을 동시에 추정하기 위한 접근의 방법을 제시하고, 구현 하였다. 오직 이른 시간과 낮은 주파수 정보를 필요로 하기 때문에 이 방법으로 계산시 반복계산의 수렴속도가 무척 빠르다는 이점이 있어, 신속한 정보를 얻을 수 있다.

UL밴드에서 BT와 IEEE 802.11에 의한 간섭의 분석 연구

강석진(Suk-Jin Kang),차정근(Jung-Keun Cha),강형구(Hyung-Koo Kang),고진환(Jin-Hwan Koh) 한국정보과학회 2002 한국정보과학회 학술발표논문집 Vol.29 No.1A

요즘 사무 빌딩이나 공항에서의 ISM(Industrial Scientific and Medical) 밴드 사용이 증가함에 따라 동일 주파수 대역을 사용하는 BT(Bluetooth)와 무선 랜은 상호 충돌 발생이 일어난다. 이러한 문제점이 최근 연구과제로 등장하고 있다. 본 논문은 채널 간섭의 모델에 의거하는 UL(unlicensed) ISM 주파수 대역에서 BT와 802.11에 있어서 충돌 평가 모델에 의한 간섭을 분석 한다. 전파 평가 모델 방법론에 의한 AP와 STA간의 범위에 따른 BT 간섭의 수와 허용할 수 있는 최대 BT 신호를 알아본다. 그리고, BT를 바탕으로 한 액세스 네트워크의 실행에서 802.11b 시스템에 관한 BT의 기본 간섭 메커리즘 및 간섭이 어느 정도 미치는지에 관한 예비 결과를 나타낸다.

初婚年齡 上昇이 低出產力에 미치는 影響

高甲錫(Koh, Kap-Suk),車正根(Cha, Jung-Keun) 인구문제연구소 1970 人口問題論集 Vol.- No.10

소형주택의 친환경건축물 인증사례를 통한 평가항목 개선안 연구

이종일(Jong-il Lee),유창봉(Chang-bong Yoo),차정근(Chung-ha Cha),차정하(Jung-keun Cha),손원득(Won-Tug Son) 대한설비공학회 2013 대한설비공학회 학술발표대회논문집 Vol.2013 No.6

The GBC(Green Building Certification) is applicable to almost building Uses, because it has been updated recently. But, as its assessment criteria consist mainly with apartment houses, so part of the GBC Criteria for detached houses is unreasonable. Therefore, this study propose an improvement of assessment criteria for detached houses by evaluating the real case