Purpose The purpose of this study is to identify the consistency and correlation of referee evaluation according to the judging characteristics in the preliminary and semi-final of the Latin event of dance sports, thereby deriving the problem of referee reliability and suggesting alternatives for improvement. Methods The method of study is Based on the performance data of 54 amateur Latin dances match organized by the Korea Dance Sports Federation for a total of three years 11,850(preliminary rounds & semi-final). Based on the Kappa statistics and the degree of agreement(pa), the difference in the group of examination characteristics was derived and the correlation between the five Latin events was analyzed. Results As a result of through this study, the consistency of the dance sports referee and the characteristics of the judging in the event were confirmed, and the number of judges tended to be higher when the number of judges was seven, the more the number of subjects was, and the highest level of agreement was more than 70 percent of the judges. In addition, the higher the concordance of each of the five detailed items, the higher the correlation tendency. Conclusion Differences in visual aspects between dance sports judges and the difference in the judges' ratings due to the revision of the rules, the decrease in the number of competitors participating in the competition, the number of people to be eliminated in each round, and the proportion of judges with experience in the competition are different, and these differences affect the judges and show up in the scores. The Latin dance sports events based on objectivity and reliability to improve the correct standards of judges to find the same raters, work will be required and an assessment element. With a systematic way in and to carry out the review curriculum and educational development is considered necessary.
The purpose of this study was to conduct an in-depth exploration of Korean national badminton players’ psychological momentum strategies. Data were collected using an open-ended questionnaire and group interviews of 66 badminton players, including 40 members of the 2018 Korean national badminton team and 22 college and semi-pro badminton players who each had badminton careers of 10 or more years and were registered in the Badminton Korea Association. The data were analyzed using inductive content analysis and the deductive process based on the inductively categorized results. The results are as follows. First, regarding strategies for maintaining positive momentum, 188 raw data were collected and classified into three category (keeping pace, dominating the play, and psychological facilitation) and 10 sub-category (including speedy resumption of the game, attacking weak points, and fighting shout). The results suggest that badminton players maintain positive momentum by using strategies to control the speed and tempo of the game at their preferred pace, implement special techniques, exploit their opponent’s weaknesses, and cheer or talk amongst themselves to motivate each other and communicate with their partners and coaches. Second, regarding strategies for overcoming negative momentum, 293 raw data points were collected and classified into three category (time outs, psychological reminders, and changes in plays) and 11 sub-category (including delaying the game, seeking social support, and play change). The data demonstrate that badminton players overcome negative momentum using strategies to intentionally delay the game and exchange equipment, focus on performance cues, and interact with their coaches and partners to change plays and prevent errors. It is hoped that these study findings will inform efforts to provide psychological support that is effective in increasing the odds of winning for the national badminton players in the Asian Games and the Olympic.
Purpose This study was conducted to analyze the differences of physical characteristics focused on the physique, strength, and power for cycling national athletes (Sprint cyclists and Road race cyclists). Methods We measured various factors (e.g., height, weight, body fat ratio, thigh circumference, waist circumference, anaerobic power, isokinetic muscular strength, muscle power, squat jump by 1RM intensity, and so on) for a total 11 male cycling national athletes (5 Sprint cyclists and 6 Road race cyclists). Results First, the body composition showed the significant differences only in weight (p=0.31) and BMI (p=.001) for Sprint cyclists. Second, the values of the anaerobic power for the Sprint cyclists were significantly higher than those for the Road race cyclists only at peak power (p=0.28), whereas there was no significant difference in average power, isokinetic muscular strength, and muscle power between the two groups. Third, the isokinetic trunk flexion muscle (p = .016) for the Sprint cyclists were significantly higher than those for the Road race cyclists. Fourth, the significant difference in Time to Peak Torque was not found between two groups. Fifth, the values for the Sprint cyclists showed the significant difference in all 5 intensity groups (0%, 30%, 50%, 60%, and 80%) (p=.001) of the squat jump. Also, there was a statistically significant difference only in 0% velocity between the two groups, except for exercise intensity. Conclusions From the various measures between two groups, the Sprint cyclists relatively showed the high weight, BMI (muscle mass), and maximum power. Additionally, the isokinetic trunk flexion muscle and the squat jump were higher in the Sprint cyclists than the Road race cyclists. These data may be used as basic data to improve the physical fitness factors related to the athletic performance of the athletes by reflecting them in the effective training plan and evaluation of the athletes.
Purpose This study was designed to develop a team building program that helps freshmen student-athletes to adapt to college life and enhance team function and process and to examine the effects of this program. It could provide basic information of a team building program that effectively accelerates team function in the college team sports domain. Methods The program was developed through this process. First, an open-ended questionnaire was utilized to discover the needs of the program. Second, the results of needs of the program and important factors of team-building program were taken into consideration. Third, expert meetings were conducted. Consequently, the program consisted of three stages of total 10 sessions which was 90 min long. The questionnaires(Group Cohesion Questionnaire and Coach-Athlete Relationship Questionnaire), experience report, and program evaluation form were used as measures to identify the effects of the developed program. SPSS version 24.0 and inductive analysis were used to analyze the data. Results The results of this study are as follows. First, there was no statistically significant influence between developed program and the level of group cohesion. In contrast, the level of coach-athlete interaction was significantly increased. Second, the analysis of experience report revealed that this program reduced interpersonal conflict between team members and formed positive interpersonal relationship by mind of respect and consideration. Conclusion In conclusion, the hierarchical culture was strongly formed and team member suffered from the dual role of athlete and student in Korean college team sports. Thus, these should be resolved in order to enhance team function and process. As a results, this process could increase team performance as well as offer psychological stability to college student-athletes.
Purpose The purpose of the study was to perform a comparative analysis of the YANG Hak Seon technique carried out by "K" athlete with the kinematical data of "Y" athlete and propose a method to improve the YANG Hak Seon technique of "K" athlete. Method The subject recruited for the study was a male athlete from Korean national team (Age: 21, height: 1.65 m, body weight: 59.6 kg, and career: 11 years). Four high - speed cameras were used to analyze the 3D motion of the YANG Hak Seon technique performed by "K" athlete. The variables selected for analysis were the velocity of COM, displacement of COM, the rotational & torsional angle of the trunk and rotational & torsional angular velocity of the trunk. The results obtained were compared to the preexisting data of the "Y" athlete (data set from the published research). Results Firstly, the horizontal displacement of the YANG Hak Seon technique of the "K" athlete was observed to be shorter along with lower vertical displacement during landing compared to “Y” athlete. In addition, the overall horizontal velocity was low and vertical velocity was not generated which rises during the BC (board contact) phase. Although the rotational angular velocity of the trunk was lower during the BC, HC (horse contact) phase and LD (landing) phase, torsional angular velocity was higher during the LD. Conclusion In order to improve the completeness of the YANG Hak Seon technique of the K player, it is necessary to enter with a fast and low posture on the footplate during the initial phase. In the BC phase, it is essential to raise the COM simultaneously while landing on the footplate and increase the rotational angular velocity of the trunk.
Purpose The purpose of this study was to verify the importance and satisfaction of service quality of visitors to screen baseball using the Importance-Performance Analysis. Methods Selected visitors who participated in screen baseball using convenience sampling of non-probability sample method from January 26 to May 27, 2017, and conducted a questionnaire survey to a total of 213 data were used in this study except 17 data which were untrustworthy responses or non-responses. SPSS 21.0 statistical program were used to exploratory factor analysis, reliability analysis, frequency analysis and IPA. Results The results were as follows. first of all,Ⅰquadrant derives 7 items including modernized facilities and equipments. Next, Ⅱ quadrant, there are 5 credibility of the program and continuous service provision. Also, in the quadrant Ⅲ, the service promised to the customer and the interest and effort of the staff in case of trouble were confirmed.. In the quadrant IV, four items were analyzed such as the interest in the members and the matching of the members' use time. In the analysis of Slack's(1994) diagonal model, twelve kinds of improvements such as costumes, appearance, internal facilities and services promised to customers were derived. In addition, there are 5 appropriately provided properties such as modern facilities and equipment, and facilities suitable for enjoying baseball. Finally, in the attributes that are provided in excess, four attributes are indicated, attention to members and matching of members' use time. Conclusion Based on the results of this study, it is meaningful to be a marketing and management practice data for operating the screen baseball.
Purpose The purpose of this study was (1) to analyze judges’ evaluation on rhythmic gymnastics performance by applying generalizability theory and (2) to suggest recommendations to improve judges' rating. Methods Data were 34 players’ scores from Senior Part at 29th KGA President’s Cup National Rhythmic Gymnastics Championship in Korea. Difficulty and execution scores in ball, clubs, hoop and ribbon event were analyzed. Analysis models containing components of area and reputation rank were designed and multivariate generalizability theory were used for analysis. Results The G-study results showed (1) that the error source about players has more significant impact to evaluation than other error sources in analysis model containing components of only player and judge, (2) that the error source about players has more significant impact to evaluation than other error sources in analysis model adding components of area, but the error source about area has more significant impact to evaluation of clubs event than other error sources, (3) that the error source about players has more significant impact to evaluation than other error sources in analysis model adding components of reputation rank, but the error source about reputation rank has more significant impact to evaluation of hoop event than other error sources in analysis model adding components of area. The D-study results showed generalizability coefficient was stable in analysis model without components of area and reputation rank, but generalizability coefficient in analysis model containing components of area and reputation rank not stable in some event. Conclusion Recommendations for improving judging were discussed.
The purpose of this study was to investigate the level of factors associated with points and the difference among weight categories after the revision of wrestling competition rules from video images. Factors associated with points were average point per a game, average points according to playing type, the occurring frequency of point according to the skills, the frequency and successful ratio of Parter, and the time zone of points occurred. The video contents were concerned on athletes ranked in 1 - 5 (6 person) at 59, 66, 75 Kg categories of Greco-Roman style in the 2014, 2015 World Wrestling Championship. The analysis was done by watching TV monitor several times. Five quantitative factors were tested between weight categories. As the results, no significant difference was found in average obtained point, but significant difference was found in average lost point (p<.05). Average obtained point showed significant difference in cross effect of the type of game and weight category. And average lost point showed significant difference in the type of game (p<.01) and weight category (p<.05), too. The frequency of point by skills of stand and ground wrestling showed significant difference in weight category (p<.001). However, no significant difference was found in frequency of point by time zone among weight categories. In conclusion, the point obtained and lost and the frequency of it are associated with the type of game and skills included in it of Greco-Roman style wrestling. New training program focused on enforcing the correct type of game and skills in it might be useful for developing the performance.
The aim of this study was to evaluate gender differences of expert and non-expert in match playing time, moving distance, energy consumption and heart rate (average, maximal) during 16 simulated badminton matches in male (n = 16) and female (n = 16) national elite players. The players had perform three sets on same day, and this time observed the playing time, moving distance, energy consumption and heart rate (resting, average, maximal) level during badminton match. Analyses of variance with repeated measures were used to test any significant time×group interaction effects on the measured variables. Statistical significances were tested at p = 0.05 with spss-pc (version 18.0). As a result, male's player had significantly difference between expert and non-expert in moving distance (p=.012), energy consumption (p=.003), average heart rate (p=.002) and maximum heart rate (p=.002). Female's players showed significant difference between expert and non-expert in moving distance (p=.001) and energy consumption (p=.012). In conclusion, there seemed to be an increased playing intensity (i.e., moving distance, energy consumption, average heart rate and maximum heart rate) from expert than non-expert in gender differences. These results suggest that men male's players with expert performed the game at a higher intensity than compared to non-expert, on the other hand female's player with non-expert showed that more activity and energy consumption was unclear during the game
The purpose of this study is to investigate the further direction of molecular biological studies, the advantages and limitations of assaying samples, and variables in figuring out the details of domestic and overseas studies verified through cell and molecular biological analysis in order to analyze the effect of concurrent training. The analysis study was limited to domestic and overseas literature, which investigated the effect of combined training using molecular biological analysis among studies to date. The study was reclassified by specialty, composed of professors of physical education and doctors of exercise physiology. The final selected study analyzed the subject and the trend of studies in terms of comprehensive perspectives. In detail, it analyzed hormonal and enzymatic changes in criteria such as leptin, 5-HT, ACTH(adrenocorticotropic hormone), cortisol, testosterone, GH(growth hormone), LDH(lactate dehydrogenase), CPK(creatine phosphokinase), antioxidants in blood samples and protein, and enzymatic and morphologic changes in for CRP, VEGF(vascular endothelial growth factor), PAI-1(plasminogen activator inhibitor-1), MAD(malondialdehyde), carnosin, and SDH(succinate dehydrogenase), the area of muscle fibers, ratio of type Ⅰ/Ⅱ muscle fiber and capillary proportion per muscle fiber in the extracted muscle by biopsy, for example. Finally, urine samples, and hormonal changes (like cortisol), were analyzed. The results of the analysis of domestic and overseas studies according to combined training has shown that this training has more varied effects than single training and lower improvement by interference effect or magnifying the effect of one type of training amongst the combined training types appears, rather than higher improvement through combined trainings. Therefore, it should be investigated in view of performance improvements relating to the characteristic of sports.
