This study has analyzed 33 domestic games and 26 overseas games by targeting women curling teams of home and abroad, and looked into what main performance variables are, how level differences of domestic team appear, and from which variables differences between winning team and defeated team come out in overseas teams. Also, main strategies has been suggested that are used most commonly for kick-off offense and latter offense, blank strategy in order to prepare countermeasures, and digital media DB has been constructed that can utilize proper countermeasures easily and simply, and a model has been proposed for predicting victory/defeat. To accomplish such goal, a variance analysis has been carried out by dividing domestic teams into each level after calculating frequency and ratio with SPSS18.0, and t-test analysis has been carried out by overseas teams. Also, the accuracy of victory/defeat classifications has been suggested by using an artificial neural networks method. As a result, a lot of technical proficiency differences have appeared among Class A(upper rank), Class B(middle rank), and Class C(lower rank) in domestic teams. The ‘Guard’ which is an aggressive variable has turned out to be used more in upper and middle teams than in lower team, and the ‘Tab Back’ has been used more in upper rank than in lower rank. Furthermore, regarding the average comparison on victory/defeat in international games, victory teams have more significant difference(p<.05) than defeated teams in accuracy of shot techniques and strategy accomplishing abilities, and victory teams have been turned out to use less ‘Drew’ and more ‘Take’ than defeated teams significantly in Drew and Take’ technique variable. Finally, the accuracy of a prediction model has been 91.7% for learning and 92.9% for the test result to predict the victory/defeat in international games through the artificial neutral network analysis. The prediction accuracy of domestic games was 81.0% for learning and 71.4% for the test.
Based on public sports facilities’ census data, this study attempts to empirically analyze to the factors affecting the operating balance and use of public sports facilities(PSF). Analysis was carried out through multiple regression analysis using SPSS and location characteristics analysis using GIS. The total floor area and population was confirmed to influence operating balance and use(DV). Management body influence differed for DV (use and operating balance of PSF) by type of PSF. Consequently, this requires diversification of the management body. The size of facilities and location characteristics(population and zoning) are positive effect on the operating balance and Use of PSF. In order to solve the problem of location restriction and security of marketability, it is possible to take into account the integrated management and sports club’s use of large-scale sports facilities.
Purpose The purpose of this study is to investigate the characteristics of the winners and the losers of curling games to provide the winner strategies for the curling stakeholder. Methods For this study, data was collected from 2014 Sochi Winter Olympics web-site(http://sochi2014.curlingevents.com), which covers 199 games in total. Using the collected data, we extracted additional data such as the shot types and accuracy per players, team average score per end, whether or not with hammer per end and so on. and then a Chi-square test in statistic package SPSS 23.0 was used. The statistical significance was considered with p< 0.05. Results As a result, it was found that there were statistically significant difference between winners and losers of curling game on the shot type and accuracy(Draw, Front and Clearing). It was also found that there was not statistically significant between winners and losers about the number of blank end per end. It was found that 9th end average score was relatively lower than the other end in both the winners and the losers. It was found that the characteristics of the winners tends to be successful in more point from 5th end to 8th end with hammer and steal without hammer. Conclusion In conclusion, the strategies to win the curling game is to improve the shot performance of Lead and Skip, to organize the operation sequence for the successful blank end, and to develop the database and software in curling.
PURPOSE This study aimed to categorize consumers’ subjectivity on public value of citizen professional football club. METHODS Q-sample and Q-classification charts were developed based on theoretical background of the public value of citizen football clubs, and in-depth interviews with consumers were conducted using the Q-methodology. Q-classification and Q-factor analyses were conducted by selecting local residents as P-samples. RESULTS The public value of citizen football clubs was confirmed as ‘Type I: club-city win-win’, ‘Type II: social integration’, and ‘Type III: culture-led’. These types are contrary to previous studies that mainly focused on management and marketing, such as financial profitability and soundness, regional economic impact, and commercial value. This is the result of examining the public value of the citizen football club from based on the subjectivity of consumer, and it differs from that in previous studies. CONCLUSIONS This study reconfirmed the specificity and role of citizen football clubs in commercialized professional sports. It showed that citizen clubs must adopt organizational goal and operation method that are different from profit sports organizations (clubs).
PURPOSE The current study examined how baseball fans evaluate a robot umpire from the perspective of the human-robot interaction. In particular, this study examined whether baseball fans evaluated more positively a robot umpire depending on whether a robot or a human umpire has the final authority to make ball-strike decisions, when the ball-strike decision contradicts with each other. Furthermore, the different types of expertise (baseball vs. image analysis) embedded in robot umpire and fans’ levels of technology adoption were used to examine the relationship between umpire type and evaluations of robot umpire. METHODS This study used 2 (final decision maker: robot vs. human umpire) by 2 (different types of expertise embedded in robot umpire: baseball vs. image analysis) by 2 (different levels of technology adoption: low vs. high) between-subjects design. RESULTS The results indicated that when a robot umpire had the final authority to make ball-strike decisions, baseball fans evaluated more positively the adoption of robot umpire, when image analysis expertise was embedded in the robot umpire rather than baseball expertise. Meanwhile, baseball fans evaluated more positively the adoption of robot umpire when baseball expertise was embedded in a robot umpire rather than image analysis expertise. CONCLUSIONS The current study provides meaningful implications regarding how to design an effective system for the operation of robot umpire in baseball.
Purpose Osteoporosis is a systemic metabolic bone disease characterized by gradual decrease of bone mass and damage of the bone microstructure. In particular, postmenopausal osteoporosis is the most common type in women after menopause. This study aims to investigate the effects of combined exercise training on bone mineral density (BMD) and OPG/RANKL mRNA levels in ovariectomized rats. Methods A total of 40 Sprague-Dawley female rats were randomly divided into four groups: (1) CON (sham-operation, n=10), (2) OVX (ovariectomy, n=10), (3) OVX-REX (ovariectomy-resistance exercise, n=10), and (4) OVX-ARE (ovariectomy-combined aerobic and resistance exercise, n=10). Combined exercise training was performed on a treadmill and ladder adapted to rats in alternate days (4 days/wk, for 12 wk). Results Compared to the OVX group, all exercise treatments increased BMD and bone breaking force(p<0.05). In the bone turnover markers, serum C-terminal telopeptides of type-1 collagen (CTX-1) was significantly decreased in the exercise groups compared with OVX group and osteocalcin (OC) level was increased in the exercise groups (p<0.05). Additionally, in the exercise groups, expression of OPG mRNA was significantly increased compared with OVX group (p<0.05), and RANKL mRNA was slightly decreased but no significant between groups. Furthermore, OVX-ARE group showed more effects than OVX-REX group. Conclusions These results suggest that combined exercise may be a more effective therapeutic strategy to prevent and delay postmenopausal osteoporosis than resistance-only training.
PURPOSE Recently, the need to improve service quality to provide an ideal viewing experience for sport OTT service users has increased. This study aimed to analyze user reviews of the SPOTV Now app, an OTT service specializing in sports in South Korea, to identify major perceptions of viewers and suggest measures for improvement. METHODS Review data (8,512) recorded on the SPOTV Now app were collected from November 21, 2017 to November 30, 2023. LDA-based topic modeling analysis was conducted along with a series of data preprocessing processes. Sentiment analysis was carried out through machine learning logistic regression analysis and odds ratio scores were calculated. RESULTS A total of five topics were derived, including ‘member management service', 'service stability', 'sport streaming service', 'sport video service', and 'subscription service'. Sentiment analysis indicated that 'exclusive', 'server', 'payment', 'log-in', 'authentication', 'pay', 'subscription', 'advertisement', 'play', and 'loading' were the top ten keywords. CONCLUSIONS Sport OTT operators should be more responsive to user requests and feedback, and video playback and server error problems should be improved for service stability. It is necessary to secure diversity as well as exclusivity of content, in addition to minimizing advertising or preparing various rate types, so that app users feel that they receive high value for their money.
