New Paradigms of Sport & physical Education in the 21st Century PROCEEDINGS 1 / 7 . Sport Nutrition ( Bongsunhwa Rm. ) : 레지스턴스 트레이닝에 따른 골격근의 미오글로빈 농도 변화

최조연(Jo Yeon Choi),마쯔다카즈미(Kazumi Masuda),이수천(Soo Chun Lee) 한국체육학회 2000 The 2000 Seoul International Sport Science Congres Vol.- No.-

단거리질주 능력에 미치는 하지의 근파워 및 근력특성의 영향

최조연(Choi Jo-Yeon),이사겸(Lee Sa-Gyeom) 한국체육과학회 2000 한국체육과학회지 Vol.9 No.1

The purpose of this study was to investigate the contribution of muscle power or strength and sprint performance within the same quality group of sprinters. The muscle power (E:generated energy, A:weight related to energy loss) or strength (ISO:maximal isometric strength) values were measured both extension and flexion for the joint (knee and hip) movements tested, using a inertia wheel. The subjects were 26 well-trained male sprinters (18-22 yr). For sprint performance the following 5 indexes were taken. (1) 70mF:The time of the former half (0-30m) in 70m sprinting. (2) 70mL:The time of the latter half (30-70m) in 70m sprinting. (3) 70m:The time in 70m sprinting. (4) 100m:The time in 100m sprinting. (5) 200m:The time in 200m sprinting. The results were summarized as follows; 1) The muscle power (E, A, E/BW, NEW) and strength (ISO, ISO/BW) values of the flexion of knee joint were observed highest in four exercise styles. 2) A negative significant correlation were observed between A/BW (knee extension and flexion) and 70mF, 70m, 200m sprint records (r=-0.641~-0.403, p<0.05). 3) A positive significant correlation were observed between ISO/BW (knee flexion) and 70mL, 70m sprint records (r=-0.462, 0.423, p<0.05). 4) The close relationships (multipul correlation) were observed between E/BW+A/BW+ISO/BW, E/BW+A/BW and all sprint records (r=0.828~0.708, r=0.724~0.556, p<0.05), and observed between A/BW and 70mF, 70m, 200m sprint records (r=0.701, 0.656, 0.564, p<0.05). From thease results, the muscle power and strength by the knee extension and flexion necessary in order to succeed in the same quality group of sprinters. However, this is not a absolute important factor which decides sprint performance.

골프관광 참여자의 일반적 특성에 따른 서비스 품질 만족의 차이가 골프관광 재구매 행동에 미치는 영향

최조연 ( Jo Yeon Choi ),박금숙 ( Kum Sook Park ),최윤동 ( Yoon Dong Choi ) 관광경영학회 2010 관광경영연구 Vol.43 No.-

In the contemporary society, sports tourism occupies very high weight in leisure. Especially, consumers` desire for golf tourism connected with golf gets higher and a lot of overseas golf tourism goods are being developed. Now such a change of market and consumers` desire for golf tourism are growing together. Therefore, the purpose of the study was to construct a strategic foundation to induce tourists who want to participate in golf tourism and to secure them as a customer by disclosingwhat difference there are in service quality satisfaction according to tourists` demographical characteristics with golf touristsand analyzing what effect satisfaction for the service quality had on repurchase behaviors. The study carried out a survey through convenience sampling method out of non-probability sampling method with consumers who participated in golf tourism in 2009. The study used total 399 copies judged that there is reliability lastly as an effective sample, excepting questionnaires including data with poor or unrecorded answers out of collectedsamples. The study carried out frequency analysis, factor analysis, reliability analysis, correlation analysis and multi regression analysis with SPSS Ver. 12.0K. The conclusions through the above process were as follows. First, there were significant differences among each group in service quality satisfaction according to age and job out of demographical characteristics of golf tourism participants. Second, the service quality satisfaction of golf tourism participants had a significant effect on repurchase behaviors of golf tourism. Key words : Golf tourism, General characteristics, Service quality satisfaction, Repurchase behavior.

플로어볼 국가대표 선수의 체력요인구조 분석에 관한 연구

최조연(Choi, Jo-Yeon) 한국체육과학회 2012 한국체육과학회지 Vol.21 No.1

The purpose of this study was to analyze the factorial structure of physical fitness in floorball national team players. The selected subjects for this study were 32 in floorball national team players(26.5±4.81 yrs), They did not have any medical problem. They performed physical fitness test for muscle strength/grip and back muscle strength), muscle power(30meter dash, sargent jump and standing broad jump), muscular endurance(sit-ups, 300m run), agility/side steps), flexibilityttrunk flexion, sit and reach test), endurance(12 min. run, 20m shuttle run test). Analyzing data, principal component analysis was appled to extract factor. The conclusions of this study were as follows; There was 5 physical fitness factors from floorball national team players. The result showed that factor Ⅰ was muscle strength, factor Ⅱ was flexibility, factor Ⅲ was endurance, factor Ⅳ was muscle power, factor Ⅴ was muscular endurance(anaerobic power). Therefore, more leaders who train athletes, especially floorball players, need to organize various systematic training programs, based on the physical fitness factors(muscle strength, flexibility, endurance, muscle power, muscular endurance) as well, for improving athletes’s performances.

근력 트레이닝방법의 교차효과에 관한 연구

최조연(Jo-Yeon Choi),이사겸(Sa-Gyeom Lee) 한국체육과학회 1999 한국체육과학회지 Vol.8 No.1

일류 남자단거리선수의 질주속도 체격 및 근력의 특성에 관하여

최조연(Choi Jo-Yeon) 한국체육과학회 2003 한국체육과학회지 Vol.12 No.1

The purpose of the present study was to compare velocity of sprint, physique and isometric strength in elite male sprinters(A, B and C group). The subjects were 28 male sprinters who were training hard. The results were summarized as follows ; First, In the all velocity of sprint, group A showed significantly higher than group B and C.But no difference between group Band C to 70mF and 70mFV. Second, In the lower limb length, group A showed higher than group B and C. Especially, in the leg length, group A showed significantly higher than group C. Third, there was no significant difference of the among three groups in isometric strength at knee extension. But there were significant difference between A and C in isometric strength at knee flexion. Meanwhile, there was no significant difference of the among three groups in isometric strength at hip extension and flexion. From these results, the sprint performance, isometric strength, body height, and leg length are necessary in order to succeed in the same quality group of sprinters.

운동부하에 따른 다리신전파워의 특성

최조연(Choi jo-yeon),윤우상(Yoon woo-sang),손두옥(Shon du-ohk) 한국체육과학회 2002 한국체육과학회지 Vol.11 No.1

The purpose of this study was to identify the significance of the measurement of instantaneous power depending on various exercise load using simple and straight leg extension exercises in seated form. The subject of the study were 40 students from K university sports club (boxing, Judo, Taekwondo), 47 male and 35 female students in the department of physical education who have no clinical difficulty in doing leg extension exercises. They participated in 3 types of leg extension exercises. As a result, the absolute value and relative value of the maximum extension power at a weight load (100% weight) were significantly higher (P<0.05) in athlete and male students group as compared to the female students group. The velocity vs. force in the maximum extension power accounted for 51.6% vs. 48.4% in athlete group, 44.0% vs. 56.0% in male students group, and 46.5% vs. 53.5% in female students group. The extension speed was significantly higher (p<0.05) in the athlete and male students group as compared to the female students group while extension time was significantly shorter (p<0.05) in the athlete group as compared to the male and female students group. The maximum extension power (absolute value) at lower weight loads (80% eight) was significantly higher (p<0.05) in the athlete and male students group as compared to the female students group. As for relative value, the results were significantly higher (p<0.05) in the athlete group as compared to the male and female students group. The velocity vs. force in the maximum extension power accounted for 59.5% vs. 40.5% in the athlete group, 52.7% vs. 47.3% in the male students group, and 54.5% vs. 45.5% in the female students group. Extension speed was significantly higher (p<0.05) in the athlete and male students group as compared to the female students group, while the extension time were almost identical in all three groups. The maximum extension power (absolute value) at high weight loads (120% weight) was significantly higher (p<0.05) in athlete and male students group as compared to the female students group and in the relative value. The results were almost identical in the athlete and male students group while it was significantly higher (p<0.05) than in the female students group. The velocity vs. force in the maximum extension power accounted for 45.3% vs. 54.7% in the athlete group, 35.5% vs. 64.5% in the male students group, and 39.9% vs. 60.1% in the female students group. The extension speed and time for athletes and male students were significantly higher (p<0.05) than those for female students. The instantaneous leg extension exercise using the weight load employed in this study can be considered an effective power measurement item which can be applied not only to professional athletes but also to general public in that there are no technical influences in its execution of the motion and there are almost no risk of injuries.

GPS기반 VHF를 이용한 AVLS에 대한 연구

김치연,김건웅,최조천,Kim Chi-Yeon,Kim Geon-Ung,Choi Jo-Cheon 한국정보통신학회 2005 한국정보통신학회논문지 Vol.9 No.4

교통관제시스템을 구축하려면 이동체들의 실시간 위치데이터를 제공할 수 있는 GPS-MDT(Mobile Data Terminal 이동데이터단말기)와 이동체들의 위치데이터를 수신하여 GIS 상에 위치를 표시할 수 있는 교통 관제용 SW가 필요하다. 이동체의 위치데이터를 VHF 송수신기를 이용하여 전송하기 위해서는 GPS 정보를 취득하고 데이터를 전송하기 위한 모뎀이 필요하며, 관제실에는 GIS기반 이동체들의 교통상황을 모니터링하는 프로그램을 개발하여야 한다. 이동체들과 관제실 간에서 자동으로 이동체의 ID를 포함하여 GPS의 시각 및 위치정보를 지속적으로 전송하여 취득할 수 있는 통신프로토콜도 연구되어야 한다. 본 논문에서는 음성과 문자정보를 동시에 전송할 수 있는 VHF 송수신기용 모뎀과 GIS-tool을 이용한 관제용 S/W에 대하여 연구하였다. For the structure of AVLS is required to the GPS-MDT for realtime acquisition the position reporting of vehicle and traffic management S/W. It is necessary that the MODEM using VHF transceiver base on GPS and monitoring program for display base on GIS the traffic status by vehicles position report in management system. The other wise, vehicles among management system that is required the automatic communications protocol for GPS information and mobile's ID. In his paper have studied the VHF modem for transmission the voice and data at same time and S/W for management system using GIS-tool.

복싱에어로빅 참여자의 건강증진 생활양식에 관한 연구

최윤동(choi Yoon-Dong),최조연(choi Jo-Yeon) 한국체육과학회 2005 한국체육과학회지 Vol.14 No.2

Among various life-time sports, the boxing-aerobic as aerobic exercise which unites the boxing with the aerobic has been recently attracted public attention due to usefulness and effectiveness. Naturally, the boxing-aerobic enables all over the body to equally train and each body part light and flexible as well as participants to be on a effective diet. The purpose of this study is to look into minutely life satisfaction according to health promoting life styles of participants in boxing-aerobic among life-time sports as well as offers fundamental information for self-control and life quality improvement of boxing-aerobic participants. Specially, it aims to identify differences in health promoting life styles in accordance with demographic characteristics of participants in boxing-aerobic. In order to accomplish the purpose, a convenient sample of 130 boxing-aerobic participants was selected, and the questionnaire for life styles test used for this study was made out by Seo,Yeon-Ok(1994). The background variables of the study were demographic characteristics such as age, education, average income, marriage, career to participate, blood type and religion. Through the analysis of established hypothesis and collected data, it is concluded that the higher monthly average income, the higher health promoting life styles.

골프 지도자의 언어적·비언어적 커뮤니케이션이 노인골퍼의 자기격려감 및 운동지속수행에 미치는 영향

김형우(Kim, Hyung-Woo),최조연(Choi, Jo-Yeon),정일미(Chung, Il-Mi) 한국체육과학회 2016 한국체육과학회지 Vol.25 No.6

This study aims to investigate the effect of golf instructor’s verbal and non-verbal communication on the self-confidence and sustainable exercise performance of elder golfers. In order to achieve the goal, research subjects were randomly selected from golfers who are older than 65 years and are guests of golf driving ranges locaeted in Seoul, Gyeonggi-do, Chungcheong-do, Gyeongsang-do and Jeolla-do. Data were collected from surveys, in which the subjects filled. To analyze the relationship between the verbal and non-verbal communication of golf instructor and the self-confidence and sustainable exercise performance of elder golfers, correlation analysis and multiple regression analysis were performed. The result are as follows. First, there is a significant influence of the verbal and non-verbal communication of golf instructor on the self-confidence of elder golfers. Second, a significant influence of the verbal and non-verbal communication of golf instructor on the sustainable exercise performance of elder golfers is also observed. Third, the self-confidence of elder golfers significantly affected their sustainable exercise performance.