The purpose of this study was (1) to analyze judges’ evaluation on figure skating performance and statistical analysis and (2) to make recommendation to improve judges' performance. Data were 62 figure skaters’ scores from Senior Woman 1 Group Part at 2015 The National Figure Skating Championship in Korea. Data of presentation part in Short Program were analyzed. Presentation part consists of skating skills, transitions/linking footwork/movement, performance/execution, choreography/composition and interpretation. Nine judges evaluate skater's presentation with the score 10.0 for each factor. Generalizability theory, descriptive statistics and ANOVA were utilized. Results showed that generalizability coefficient of presentation part was over 0.9, therefore stable reliability was secured. The error source about players has more significant impact to evaluation than other error sources. Generalizability coefficient was stable when reducing the number of judges up to 2. Also, judges generally represented aspects of similar evaluation, but different aspects appeared on a few judges’ assessment in the components of presentation. Discussions were provided in terms of the reliability of the judging method for the presentation part of figure skating and the effective measurement condition.
PURPOSE This study sought to establish obesity diagnosis criteria by using the Body Volume Index (BVI) by body part extracted through 3D BodyScanner. METHODS The body fat percentage was measured using Dual Energy X-ray Absorptiometer (DEXA) for 225 participants (male = 119, female = 106), and BVI for eight body parts was measured using 3D BodyScanner. Independent t-test and Receiver Operating Characteristic (ROC) analysis were conducted. ROC analysis calculated the Area Under the Curve (AUC), and the optimal cut-point by Youden's J index. Sensitivity, Specificity, Accuracy, Balanced Classification Rate (BCR), and F1-score (harmonic mean of recall and precision) values were calculated to verify the validity of the optimal cut-point. RESULTS A statistically significant difference was observed in BVI by body part according to whether obesity was present for both men and women, and the obese group higher than the normal group. The optimal cut-point for each body part to diagnose obesity was 7.96 for shoulder, 9.79 for chest, 7.15 for upper abdominal, 7.71 for lower abdominal, 14.89 for total abdominal, 9.79 for thigh, 5.70 for calf, and 74.96 for total body volume in men. In case of women, this was 6.04 for shoulder, 9.82 for chest, 4.96 for upper abdominal, 6.23 for lower abdominal, 11.63 for total abdominal, 8.88 for thigh, 4.05 for calf, and 58.15 for total body volume, and the accuracy was 0.6~0.9. CONCLUSIONS BVI is a useful indicator for diagnosing obesity. However, this can be applicable only to Asian adults since there may be differences depending on race or age.
Purpose In the field of sports industry, the intangible assets of sporting companies often show discrepancies between accounting information and corporate value because of conservative current accounting standards. Therefore, this study intends to present a valuation model of intangible assets of sports industry based on cost approach, as a part of a method of capitalizing intangible property expenditures. And we tried to verify the valuation model of intangible assets derived from the research on actual sports companies. Methods To accomplish the purpose of the study, reviewing the literature on various related precedent studies and examining related valuation methodology, legal basis, and representative valuation models were utilized. And to verify the effectiveness of the derived model, Tobin q values were derived and compared. A simple regression analysis was used to verify the explanatory power of the derived model. Results The financial evaluation was conducted based on the cost approach, which enables relatively objective evaluation through the existing financial statements, and a valuation model with the procedure of duplicating the AHP evaluation to reflect the characteristics of the individual intangible assets was presented. In addition, in order to verify the proposed valuation model, the valuation was conducted by putting the accounting information of the sports companies into the intangible asset valuation model presented in this study. As a result of the statistical analysis on the evaluation results, the intangible asset value evaluation model presented in this study is proved to be significant based on statistically high explanatory power. Conclusion Therefore, if it is possible to appropriately evaluate the enterprise value of sports companies through the intangible asset valuation model based on the cost approach presented in this study, various types of technology financing will be possible in the sports industry. And this is expected to accelerate the growth of the sports industry in the future.
Recent research on exercise and affect has examined participants` affective changes during and after exercise with a longitudinal approach. With regard to this viewpoint, a theoretical model (Dual Mode model) has been presented to explain the different change of affect in an exercise setting and the model identified the impact of psychological factors on the affective changes. However, not only there is little empirical studies on the dual-mode model, but some relevant research has used an inappropriate statistical method (ANOVA), which cannot effectively explain the overall trends in affective change during and after exercise. Exiting research has a limitation to generalize the DM model examining only a certain gender such as active male or inactive female participants. Thus, the aim of present study was to investigate the effect of intrinsic motivation on affective change during and after exercise in participants who do not take part in regular exercise considering gender based difference. 51 inactive university students (M: 36, F: 15) responded a survey measuring intrinsic motivation for running activity and participated in moderate-intensity running exercise to examine affective change during exercise. Therefore, present study examined the influence of intrinsic motivation as a psychological variable on the trend of affective changes during and after exercise based on the dual mode model. Results from the latent curve model analysis revealed that there were decreasing trends of affect during exercise and the trends were individually different. Importantly, the decreasing trends were weaker in the participants with higher intrinsic motivation[FL=-.34, p=.000]. Additionally, participants` affective responses were positively changed after the exercise in general, but the changes were not influenced by intrinsic motivation. Therefore, the decreasing trend of affective change during exercise was weaker in the participants with higher intrinsic motivation, and the positive change in affect after exercise was not influenced by intrinsic motivation.
PURPOSE This study aimed to investigate the occurrence of sports injuries among badminton national team candidates during training camps and to identify appropriate measures for players to effectively manage and respond to such injuries in the future. METHODS The participants consisted of 123 individuals who took part in national team candidate training camps for badminton in 2022 and 2023. Record sheets were utilized to document the athletes' thoughts and opinions related to exercise injuries during the training period. RESULTS Badminton national team candidates experienced exercise-related injuries in various areas, including the ankles, thighs, knees, hips, shoulders, and back. Female players had a higher incidence of lower body injuries compared to their male counterparts. Through interviews with players about these injuries, individualized approaches involving appropriate rest and training adjustments were found to be necessary; additionally, educating the players about rehabilitation strategies for exercise injuries is essential. CONCLUSIONS When conducting recreational training activities, it is important to avoid fostering excessive competitive attitudes. Additionally, if potential risks are present within the exercise environment, it is crucial to assess and address these with the utmost caution.
Purpose This study was aimed at laying out criticism regarding statistical hypothesis testing and presenting realistic alternatives focused on published studies of sports management in Korea. Methods Among 202 studies compiled by the Korean Society for Sport Management, vol. 19, no. 1 through vol. 23, no. 6, 115 studies which used the null hypothesis significant testing were finally selected. After data coding for selected studies, p-curve, the distribution of p-values which reported in individual studies, was schematized, and than adequacy about the sampling method and result descriptions were analyzed. Results The ratio of p-values close to zero was relatively very high in p-curve although there was no clear evidence of p-hacking. Also, approximately 82% of the studies used convenience sampling method, and incorrect descriptions in part of result and discussion due to lack of understanding of statistical hypothesis testing was found in some studies. In conclusion, the shortcomings of statistical hypothesis testing which commonly used in academic field were depended on not a defect in the method itself but researchers who misused statistical hypothesis testing. Conclusions Researchers in sport management field need to understand the advantages and disadvantages of statistical hypothesis testing and consider to use both confidence interval and effect sizes to compensate the disadvantages of p-value.
There are expanding the base of amateur baseball with diverse factors and corporations are getting more interested in making opportunities to build relationships with customers by using this phenomenon. However, the previous research did not focus on examine practical effectiveness for relationship marketing methods as the strategy of the building relationship which was applied to sport events from diverse corporations. Therefore, the purpose of this study is to examine the practical effectiveness of the relationship marketing methods and the influencing process of the relationship marketing strategy applied to the amateur baseball. 150 players who took part in the amateur baseball tournament hosted by the on-line shopping mall company were selected for research samples with random assignment. To examine the practical effectiveness, 136 players' survey responses out of 150 responses were used for research data. For hypotheses testing, this study applied PLS structural equation model. This study presented that perceived face to face and listen as relationship marketing methods were significantly positive influenced on perceived relationship quality. In addition, perceived relationship advertising as relationship marketing methods were significantly positive influenced on perceived purchase intention. Moreover, perceived relationship quality was significantly positive influenced on perceived purchase intention. In the case of mediating effect with considering relationship quality, there was partial mediating effect for relationship advertising and face to face, and there was complete mediating effect for listen.
The frailty, characterized by reduced physiological function is closely related to a fall, disability, institutionalization, hospitalization, and mortality in the elderly. A reduced physical fitness is a major phenotype of the frailty. The purpose of this study was to investigate the relationship among pre-frailty, physical activity (PA) and functional fitness in the community dwelling elderly women. The study participants were elderly women (n=338, 70.6±4.2years) aged over 65 who took part in the Korean Healthy Fitness Criteria study for the National Fitness Award Project in 2015. The pre-frailty was defined using the Cardiovascular Health Study frailty criteria. PA was assessed using the International PA Questionnaire (IPAQ). The participants were classified as regular PA participants if they meet the World Health Organization (WHO) PA recommendation for the elderly. Functional fitness was assessed using the composite of the National Fitness Award fitness testing for the elderly. Quality of life was evaluated using EuroQoL visual analogue scale and WHO quality of life assessment. As the results, the pre-frail elderly women were significantly older and obese (body mass index, percent body fat, waist circumference) than the healthy elderly. The pre-frail elderly presented significant decreases in walking, moderate intensity, and total PA compared to the healthy elderly even after adjusted for age and percent body fat. However, no significant difference was found in vigorous-intensity activity between the pre-frail and healthy elderly. Also, the pre-frail elderly women showed the decrease in functional fitness and quality of life compared to the healthy elderly. Regular PA was associated with high levels of muscular endurance and coordination in healthy and pre-frail elderly. In pre-frail elderly, high levels of cardiorespiratory endurance was associated with PA. In conclusion, regular PA is inversely associated with fitness decline in healthy and pre-frail community-dwelling elderly women. Regular PA might attenuate fitness decline in pre-frail elderly women.
