• 한국응용과학기술학회지
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• 제38권1호
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• pp.1-8
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• 2021

본 연구에서는 골프 드라이버 스윙 시 운동역학적 변인들이 비거리와 어떠한 관련성이 있는지를 분석하는 것이 목적이었다. 연구대상자는 신체 건강한 15명의 KPGA 골프 선수들이 참여하였다. 8대의 VICON 모션 캡쳐 카메라(250 Hz), 2대의 지면반력기(1000 Hz), 그리고 Trackman을 이용하여 운동학적 및 운동역학적 자료를 수집하였으며, 통계 분석은 Pearson 상관관계를 실시하였다. 드라이버 비거리와 볼 스피드, 클럽 헤드 스피드, 엑스 펙터, 그리고 지면반력 간 유의한 상관관계가 나타났으나, 스매쉬 팩터와 무릎 토크는 비거리와 상관관계가 나타나지 않았다. 볼 스피드, 클럽 헤드 스피드, 엑스 펙터, 지면반력은 비거리에 영향을 미치는 것으로 나타났으나, 스매쉬 팩터와 무릎 토크는 비거리에 영향을 미치지 않는 것으로 나타났다.

• 한국운동역학회지
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• 제14권3호
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• pp.219-233
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• 2004

The purpose of this study was to compare the EMG activities of four-forearm muscles during Kumdo head striking. The four skilled and unskilled Kumdo club members were selected from D university in B city. Investigated muscles were left brachioradialis, right brachioradialis and left flexor carpi radialis, right flexor carpi radialis. Raw EMG data were collected during the head striking motions and the average EMG were calculated by the frame width of 0.05s, and then the average %MVC were calculated. The average %MVC values of each muscle in each group were compared. The results are as follows. 1) In each group, there were no significant statistical differences between every muscle over the all phases. 2) There were significant differences, however, between skilled group and unskilled group. The former got higher average %MVC at left flexor carpi radialis and the latter at right brachioradialis in the ready phase and in the impact phase.

• International Journal of Contents
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• 제6권2호
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• pp.53-58
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• 2010

Social capital is regarded as the alternative plan and the index of healthy society for constructing social tie through solving social problems on the basis of causal relationship between sports, social capital, and healthy society, in order to accomplish sound society. The role of sports to construct healthy society and social capital is emphasized here. To accomplish healthy society amid various social deviations nowadays, the value of sports should be newly recognized and highlighted among the general public. To attain this purpose, organizing sports club as a voluntary association and facilitating its activities, securing confidence for the sports organization and policies, developing and popularizing sports program to form community and civil society should be embodied. The research field of sports sociology should inquire into the most suitable condition in constructing healthy society and social capital, and should make efforts to find out realistic solutions to satisfy this that purpose. To examine this aspect, cooperative research on micro scale and macro scale of trust as social capital interdisciplinary research into the field of psychology and sociology, research on the methodology of the social network, and critical research are required.

• 한국운동역학회지
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• 제21권3호
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• pp.345-352
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• 2011

The purpose of this study was to determine how spandex wear with compressive band affects biomechanical parameters during a golf swing. Nine male golf players, each with at least 6 years golf experienc(handy 4.5${\pm}$5.4), were recruited as the participants. Eight pairs of surface electrodes were attached to the left and right side of the body to monitor the pectoralis major(PM), external abdominal oblique(AO), erector spinae(ES), and vastus lateralis(VL). This study showed that the angular velocity of the club in EG were increased during the down swing phase but X-Factor and X-factor Stretch were reduced. Average and maximum nEMG (normalized EMG) values of the left AO(external abdominal oblique) were less in EG(experimental group) compared with CG(control group) during the back swing, whereas those of left PM(pectoralis major) in EG were greater than CG. It is more likely that EG performed effectively golf swing without excess muscle activity. Thus, the spandex wear with compressive band played an important role in improving swing performance with injury prevention. This has led to suggestions of the need for further kinetic and kinematic analyses to evaluate its function.

• 한국운동역학회지
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• 제20권2호
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• pp.167-174
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• 2010

This study aims to quantitatively compare and analyze kinetic variables in the motion of male and female professional golfers to suggest basic scientific materials for golf iron swing. Five male and five female professional golfers participated in this experiment. Ground reaction force and foot pressure were measured during performing 10 swings for each participants using an iron club. The result of the ground reaction force indicates that the force occurs at the left foot toward right(-) direction in the mid-downswing(E3) and impact(E4) events in X-axis, while it occurs at the right foot toward anterior(-) direction in Y-axis for both male and female, showing a big difference between them. Also, in Z-axis, large force occurs at the left foot in most events. The analyzed result on foot pressure indicates that men have the highest pressure and area at the left foot, and women have the highest ones at the right foot in the mid-downswing(E3) and impact(E4) events in the max foot pressure, ground contact area and average pressure. It is considered that there is difference of central movement methods between men and women. Thus, different education and training on golf swing should be necessary by gender due to their different patterns of golf iron swing.

• 한국운동역학회지
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• 제29권4호
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• pp.213-217
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• 2019

Objective: The purpose of this study was to investigate the ratio of carrie's and run's distance in golf running approach using 52° and 48° wedges. Method: 2 women's professional golfers from the LKPGA were given the running approach in the 5 m, 10 m, 15 m respectively. The variables were analyzed through a golf analyzer and actual measurement. Results: If you send 5 m with 52° and 48° wedges, the ball run about 5 m, 10 m respectively, if you carry 10 m with 52° and 48° wedges, the ball run about 10 m, 13 m respectively. And if you carry 15 m with 52° and 48° wedges, the ball run about 13 m, 15 m respectively. Conclusion: Based on the results, if you are confident in distance, if you choose the club properly and if you are confident, if you try to send the correct distance to the hole cup, then you will have a more confident approach, which will lead to better results.

• 한국운동역학회지
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• 제24권4호
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• pp.339-347
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• 2014

The purpose of this study was to investigate joint torques of lower body segments on professional golfers. Three dimensional swing analysis was conducted on the seven subjects. Each subject was asked to swing with 45 inches of Callaway driver, where two force plates (9286AA, Kistler, Switzerland) were built, with his normal speed and tempo. The resultant joint moments of the lower extremities were computed using the kinematic variables of the segments, anthropometric measures and the ground reaction force data by inverse dynamics method. Based on the results of this study, the following conclusions were drawn; It was found that the left ankle joint torque at 3rd phase was increased toward extension on the X-axis and abduction on the Y-axis. The left knee joint torque was alternated from flexion to extension direction in order to lower down the body weight at the beginning of the downswing. The lumbar joint torque was alternated from flexion to extension in order to speed up the upper body rotation which could increase the club head speed ultimately.

• 한국엔터테인먼트산업학회논문지
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• 제13권1호
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• pp.99-109
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• 2019

이 연구는 직장인들의 생활체육 동호회 활동에 관한 연구를 조사하기 위해 실시되었다. 이 연구의 대상은 생활체육에 참여하는 직장인을 대상으로 총 400부를 설문 조사한 후, 무효 또는 오류 설문지를 제외한 387명의 설문지를 연구 목적으로 사용하였다. 요인 분석 및 신뢰성 테스트는 IBM SPSS통계 Ver 21.0을 사용하였다. 일반적 특성을 살펴보기 위해서 빈도분석을 실시하였다. 인구통계학적 및 일반적 특성에 따른 집단 간의 차이 검증을 위해 독립표본 t검증 및 일원분산분석을 실시하였으며, 변인간의 관계를 살펴보기 위해서 상관관계분석을 실시하였다. 이와 더불어 변인 간 영향력을 검증하기 위해 회귀분석을 실시하였다. 연구 결과는 다음과 같다. 첫째, 성별에 따른 웰니스 및 직무만족에 대한 차이는 보이지 않았다. 둘째, 종목에 따른 웰니스 및 직무만족에 대한 차이는 나타나지 않았다. 셋째, 연령에 따른 웰니스 차이에서는 지적 웰니스가 유의한 차이가 있는 것으로 나타났다. 특히 40대와 50대가 60대 이상보다 높은 수준으로 나타났다. 넷째, 활동기간에 따른 웰니스 차이에서는 사회적 웰니스가 유의한 차이가 있는 것으로 나타났다. 특히 활동기간이 1~2년이 3년 이상보다 높은 수준으로 나타났다. 마지막으로, 직장인들의 웰니스적 생활체육 동호회 활동이 직무만족에 미치는 영향을 살펴보면, 직장인들의 웰니스적 생활체육 동호회 활동이 직무만족에 유의한 영향을 미치는 것으로 나타났다.

• 한국산학기술학회논문지
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• 제10권12호
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• pp.3839-3847
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• 2009

본 연구는 국내 프로스포츠 경영환경 분석을 통해 문제점을 파악하고, 이를 중심으로 개선방안 및 프로스포츠 리그의 활성화 방안을 제시하는데 그 목적이 있다. 이에 따라 환경 분석에 의해 도출된 문제점들에 대한 개선방안으로서 국내 환경에 적합한 프로스포츠 리그 활성화를 위한 지침을 제시하고자 한다. 첫째, 프로구단의 수입원 창출을 위해 통합마케팅 전략 개발과 경기장 장기임대가 수반되어야 한다. 둘째, 선수마케팅의 잠재력을 개발하고 활용하여야 한다. 셋째, 국내선수 샐러리캡과 용병연봉 상한선이 함께 검토되는 소프트 샐러리캡을 실시해야 한다. 마지막으로 유소년 클럽의 활성화를 바탕으로 한 저변확대가 이루어져야 한다.

• Journal of Sport and Applied Science
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• 제5권2호
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• pp.39-46
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• 2021

Purpose: This study aims to analyze the management environment provincial and municipal professional soccer teams based on financial statements at a time when strengthening the financial soundness of domestic professional soccer teams is emphasized. Research design, data, and methodology: This study analyzed the financial statements (2018-2020) of the six teams of the provincial and municipal professional soccer teams whose financial statements were disclosed. The statements includes indicators of growth, profit and stability, which represents the main business performance of the entity. Results: As a result of the study, First, in terms of sales growth, sales in 2020 fell sharply year-on-year due to the impact of Covid-19. Second, the increase in sales through the import of player transfer fees had a positive impact on the growth of the business performance of the provincial and municipal professional soccer teams. Third, the profitability of the provincial and municipal professional soccer team is still low. Fourth, the debt ratio of the provincial and municipal professional soccer team was high, indicating that stability was serious. Conclusions: In order to increase sales, various strategies and measures are needed to overcome external factors such as media content products and non-face-to-face content strategies. The provincial and municipal professional soccer team, which has weak self-sustaining operations, needs to generate more profits through transferring players as a new management (profit) model, and first of all, a long-term strategy is needed to secure financial stability by improving the club's profitability.