This study aims to suggest the guide line for weight category sports(Taekwondo, Judo, Wrestling, Weightlifting, and Boxing) who have to lose weight to pass weigh-in before games. Reference data was collected from RISS, Medline, PubMed, SciELO and effects of short term weight loss on physiological variables(body composition, physical fitness, blood components, oxidative stress and hormone, immune function) were analyzed. Also, weight loss procedures for weight category sports athletes were analyzed in details. The results of the research are as follows: weight category sports athletes prefer short term (3~5 days) weight loss methods (3~5%) with dietary control, sweating and exercise. Physical changes caused by the loss in body weight, fat-free mass, and BMI, however, do not affect body fat percentage. Different changes of physical strength element depend on weight reduction period. In short term weight loss method, anaerobic exercise capacity, muscular strength, and reaction time partially decrease and affect staying power. In contrast, long term weight loss method do not affect aerobic and anaerobic exercise capacity. Furthermore, most of previous studies show that blood component change has negative effect on body water balance, stress-related hormone, and immune function. In conclusion, short term weight loss method negatively affects athletic performance of weight class competition athletic. Therefore, careful long term weight loss methods are recommended with dietetic consideration to prevent dehydration during weight loss period. Excessive weight loss on lightweight athlete should be prevented by institutional basis as well.
The purpose of this study was (1) to develop a archery lesson using forced connection method-sportcasting for cultivating collaborative problem-solving competencies, and (2) to apply and to examine the responses of students after physical education(PE) lesson. A archery lesson of Understanding-Performance-Appreciation step was developed according to LfPE(Lee, 2014) using backward curriculum design. Participants were tenth grade students (N=148) in a high school. Open-ended question used to collect the data. The analysis of data indicates that students expressed features in lessons. Six features are (a) 朋友信之, (b) 君子不器, (c) 能竭其力, (d) 觀其所由, (e) 溫故知新, (f) 思而不學. In-depth interviewers were carried out for further analysis of the answers to the questionnaires. The results are as follows. First, 朋友信之 means lesson cultivating collaborative problem solving competencies. Second, 君子不器 means pleasant and funny lesson. Third, 能竭其力 means lesson cultivating self management ability. Fourth, 觀其所由 means lesson cultivating appreciativeness for archery. Fifth, 溫故知新 means lesson improving the status of PE teacher and school. This study concluded that a archery lesson generated fun and interest for students. Implication for developing lesson using LfPE, utilize and transform forced connection method-sportcasting in PE were discussed.
This study aims to provide an in-depth study on K-League players' perception and preparation process on retirement. In order to achieve the purpose, data collection was conducted in two major ways; face-to-face interviews and questionnaires from 10 currently working players. The result of study is based on inductive analysis. First of all, sense of expectation and concern, limited scope of secondary job, and necessity for career education are appeared in terms of players' perception. Second, preparation process on retirement is concluded in two categories; personal development activities(non-professional and inefficiency) and financial preparation. Thirdly, difficulties in the procedures of retirement preparation are categorized into ‘limited time and isolated lifestyle caused by staying in club house ’ and ‘lack of educational programs regarding retirement’. Depending on the results of this study, opportunities confined to retired players are supposed to be enlarged to currently working players. In addition, football club and K-League federation need to support players not only to enhance performance but also to prepare retirement.
The purpose of this study was to evaluate sports commentators’ public confidence by the difference between media recipients’ expected level on the public confidence and their perceived outcomes, and to investigate how such characteristics are perceived by media recipients. The questionnaires were given out to people in Seoul and Gyeonggi province, who have experience of having watched the 2014 FIFA World Cup Brazil. The samples were collected by snowball sampling method and a total of 218 questionnaires were chosen as final validity sample. For data analysis, frequency analysis, exploratory factor analysis, paired t-test, importance-performance analysis (IPA), PROXSCAL analysis, and a multiple regression analysis were done by using PASW 21.0. The derived results are as follows: First, according to results from IPA analysis, the Quadrant I is a status-quo area, which is inclusive of the professionalism of KBS and SBS commentators. The Quadrant Ⅱ is a concentrated effort-oriented area, which includes dynamics of KBS and SBS commentators, and professionalism and dynamics of MBS commentators. The Quadrant Ⅲ is an inferiority ranking area, which contains popularity of KBS and SBS commentators, and reliability of MBC commentators. The Quadrant Ⅳ is a rejection of overexertion area, which incorporates reliability of KBS and SBS commentators and popularity of MBC commentators. Second, according to results from MDS analysis in terms of the characteristics of public confidence, an order of KBS>SBS>MBC appeared in the fields of professionalism, reliability and dynamics, and an order of KBS>MBC>SBS appeared in popularity.
This study was to verify the structure of efficacy related to performance perceived by short-track athletes when playing a match. Therefore, 50 players answered open questionnaires and 200 players participated in construct validity verification, a total of 250 players of short-track members of national, business and university team were sampled during the research phase. The data was analyzed through the study procedures. The results were as follows: First, efficacy structure of players during the match were categorized into three groups as game managing strategy(including course management, race control, match management and selective attention ability), psychological control ability(including positive imagery, match competition, competitive spirit, ability to handle hardship, anxiety control, and patience), and physical usage of ability(including physique, endurance, and quickness). Second, the result of the first construct validity verification through exploratory factor analysis showed 7 factors in 29 items as game management, course management, psychological control, physical use, coping with hardship, speed control and psychological stability. Finally, as a result of confirmatory factor analysis, short-track self-efficacy showed the 5 factor in 15 items except for coping with hardship and psychological stability.
In this paper, we tried to find out the difference of CoM displacement, CoM velocity and Foot-pressure between draw motion and takeout motion in curling’s delivery motion. To do this, we experimented for 10 female athletes of curling national team(all athletes are in her 20th~30th ages) to carry out draw motion and takeout motion from backline to near hogline in state of speed limit. The limited speed was 3.80~3.90 sec for draw and 2.97~3.07 sec for takeout. From the experiments, we obtained the result like followings. 1. Draw motion is more increase than takeout motion in displacement of horizontal direction of CoM displacement. 2. Takeout motion is more increase than draw motion in displacement of vertical direction of CoM displacement. 3. Takeout motion is faster than draw motion in both of horizontal and vertical direction of CoM max. velocity. 4. Takeout motion is higher than draw motion in pressure of fore-foot and mid-foot of foot-pressure 5. Draw motion is higher than takeout motion in pressure of fore-foot and mid-foot of foot-pressure These result means that the characteristics of techniques for draw motion and takeout motion is differ from each other and it is necessary to take different training protocol individually to enhance athletes’s performance. And further research will contains another things like that the pursuit of curling stone’s rut by various delivery techniques
The purpose of this study was to classify high school baseball players as superior or inferior group by Functional Movement Screen(FMS) and to provide basic information for finding great pitcher and improving exercise performance by comparing and analyzing the pitching motion. The results of this study are as follows. The inferior group’s center of mass(COM) moved significant on the left side than superior group at heel contact(HC), ball release(BR), and follow throw(FT)(p<.05). There were no significant difference in linear velocity of shoulder, elbow and wrist between two groups, but inferior groups showed large difference in each joint. The superior group controled rotation of pelvis at HC and showed significant higher knee extension at BR and FT than inferior group(p<.05). The angular velocity of superior group’s throwing arm were higher in acceleration period(p<.05). Taken together based on the results, the players who have higher muscle function showed great pitching motion, so we can conclude that FMS could be useful for evaluating the potential of pitcher.
This study was to analyze the hierarchical importance of successful intelligence in Football coaches and players. In order to explore the hierarchical importance of successful intelligence 24 football coaches(under AFC A course) and 20 Korea Football Association U15 Players were responded to analytic hierarchy process questionnaires. In the Analytic Hierarchy Process, football coaches and players completed the AHP Questionnaire with creative intelligence, analytical intelligence and practical intelligence. The hierarchical importance order of successful intelligence for coach and player were analytical intelligence, practical intelligence, and creative intelligence respectively. Evaluation of hierarchical importance of successful intelligence for coach is analytical intelligence(.542), practical intelligence(.278), creative intelligence(.181) in order. Evaluation of hierarchical importance of successful intelligence for coach was analytical intelligence(.684), practical intelligence(.161), creative intelligence(.155) in order. The hierarchical importance of successful intelligence for coach and player were similar each other. Analytical intelligence, was evaluated most important factor for coach and player in successful intelligence. Successful intelligence is important issue for sport performance. More consider needs to Successful intelligence for sport psychology researchers.
PURPOSE This study identified a company sports club’s dual characteristics— both for leisure activity and as an extension of work—to provide comprehensive interpretation and understanding of such clubs. METHODS A qualitative case study design was employed, incorporating in-depth interviews, nonparticipant observation, and supplementary data collection from 25 office workers who had participated in an in-house sports club for at least one year. RESULTS Participants reported a wide spectrum of motivations, from voluntary motives such as stress relief and health improvement to more obligatory or organizationally driven motives, including pressure from supervisors or colleagues and expectations related to performance evaluations. The club offered both team sports—which fostered teamwork and a sense of belonging—and individual sports—which offered personal development opportunities. However, some participants experienced blurring of work–leisure boundaries and reemergence of hierarchical organizational culture, leading to conflict and fatigue. CONCLUSIONS Overall, Although company sports clubs have become a welfare program that provides employees with opportunities for leisure and self-development and promote inter-departmental communication and collaboration, they also carry the latent risk of imposing additional burdens and pressures on employees. These findings underscore the need for refined operational strategies and institutional improvements to mitigate negative outcomes and maximize such programs’ original intent.
PURPOSE This study reviews the operational status of the four courses that comprise the 'International Referee Development Program' in 2022 and 2023, analyzes participant satisfaction and feedback, and derives policy implications for the program’s future direction from the perspective of its operators. METHODS To achieve the study objectives, a literature review was conducted, survey items were developed, and expert meetings were held. RESULTS The four sub-courses within the 'International Referee Development Program' were analyzed by comparing modifications made between 2022 and 2023, evaluating satisfaction survey results, and identifying operational improvements. From the operators’ perspective, the study emphasized the urgency of conducting a comprehensive review of the scope of sports included in the referee development program, establishing clear evaluation criteria for selecting and monitoring focus areas, enforcing sanctions for dropouts under the current format and maximizing outcomes through long-term support. CONCLUSIONS It is expected that by establishing more macro-level and practical key performance indicators (KPIs) under the guidance of the Ministry of Culture, Sports, and Tourism and the Korea Sports Promotion Organization, the program’s continuity and direction will be maintained, even in the event of changes in responsible personnel.
