PURPOSE This study investigated the effects of 12 weeks of clubbell and stepbox training on physical fitness, badminton skills, and fatigue in male badminton, grade A (top grade) club members aged 20–30s, with over 5 years’ experience. METHODS Participants in a training group (TR: n=15) engaged in 12 weeks of clubbell and stepbox circuit training involving maximum 8–12 reps of clubbell exercises and stepbox exercises at over 77% of HRmax for 50–55 min/sessions three times a week. Participants in a control group (CON: n=15) maintained their normal lifestyle pattern during the same intervention period. Dependent variables were measured and compared using repeated measures two-way ANOVA. RESULTS The main results were as follows: 1) The groups showed no significant differences in body composition. 2) Regarding physical fitness, VO2max, relative peak power, relative average power, grip strength, push ups, repeated jump squats, SSPT (seated single-arm shot-put test), 10 m sprint, and hexagon agility increased significantly in the TR, while push ups decreased significantly in the CON. 3) As for badminton skills, forehand clear accuracy, badminton agility, badminton endurance, and smash speed increased significantly in the TR. Forehand clear accuracy decreased significantly in the CON, but badminton agility and smash speed increased significantly. 4) The groups showed no significant differences in fatigue. CONCLUSIONS In male badminton club members aged 20–30s, 12 weeks of clubbell and stepbox circuit training effectively improved physical fitness and badminton skills. However, lack of any improvement in body composition and fatigue warranted further research in these areas.
PURPOSE This study analyzed the relationship between the center of pressure (CoP) trajectory area and ankle inversion/eversion movement across different walking speeds and established a new assessment method for predicting ankle instability. METHODS Twenty-seven healthy young adult males (20 yrs) performed treadmill walking trials at three speeds (slow, normal, and fast). Their cumulative CoP trajectory area and ankle inversion/eversion angles were analyzed, with particular focus on the third quadrant area (3QA). RESULTS During slow walking, mediolateral CoP range (p < .05) and 3QA (p < .05) increased significantly compared to normal and fast walking. Concurrently, ankle inversion/eversion angle (p < .05) and range of motion (p < .05) also increased. Furthermore, 3QA exhibited significant negative correlations with maximum ankle eversion angle (p = .001) and eversion angular velocity (p = .005). CONCLUSIONS This study provides findings that the CoP trajectory’s cumulative area, specifically 3QA, serves as a critical predictor of ankle joint eversion kinematics. These findings have potential implications for ankle instability assessment, prevention, footwear design, and rehabilitation protocols.
PURPOSE Through analysis, this study reports on occurrences of children and adolescents’ sports accidents and presents measures to prevent, cope with, and manage school sports accidents. METHODS The study used both quantitative and qualitative methods. First, a frequency analysis was conducted using 284,429 safety accident data of the School Safety and Insurance Association (SSIA). Second, the inductive analysis method was applied to in-depth interviews conducted with eight teachers. RESULTS , accidents are characterized as follows: 1) At the school level, accidents have increased significantly every year in a large proportion of elementary and middle schools. 2) The span of time spent on sports was large. 3) Accidents happened at playgrounds and auxiliary facilities. 4) Accidents happened during kindergarten play and ball sports in schools. 5) The descending order of days with the most accidents was Thursday, Tuesday, Friday, Wednesday, Monday, Saturday, and Sunday. 6) Rather than a certain month, accidents happened across the school semester. 7) Most accidents occurred from 10 a.m. to 2 p.m. Second, field teachers’ stories were categorized into the following topics. 1) School accidents can occur anytime, anywhere. Whether mild or serious, they still had the burden of inevitable accidents. 2) Required: were prompt response and handling by appropriate teachers; timely treatment and recovery cost support; also procedurally simplified handling by SSIA was helpful. 3) Avoiding accidents requires the following:: regular operation of safety education programs; daily promotion of teachers’ preventive observation and close guidance; and active role reinforcement of SSIA and policy support. CONCLUSIONS Finally, measures to prevent, cope with, and manage school safety accidents were proposed.
PURPOSE The purpose of this study was to provide information for improving the performance and skills of 500 m speed skaters by analyzing the kinematic and kinetic changes in their slide board movements over time. METHODS The subjects were 10 male short-distance skaters in their 20s to 30s who were registered as professional athletes with the Korea Sports Council. The changes in joint angle, joint moment, and joint power over time in the subjects’ slide board motion were measured and analyzed. RESULTS It was found that during phase 2 of the skater’s slide board movement, there was an increase in plantar flexion and a decrease in flexion of the lower extremity joint and extension of the knee and hip joint, with decrease in positive power of the knee joint. CONCLUSIONS The results of this study are expected to provide practical information to skating coaches and athletes by quantifying the biomechanical factors observed over time during slide board movements. In addition, this study is expected to contribute to the field of speed skating by presenting scientific training methods and proposing new analysis techniques to improve performance in the future.
PURPOSE This study aimed to compare and analyze the game content of the “3-rounds, 2-win system” matches before and after the rule revision implemented in 2022. METHODS This study covered 72 matches from the 2019 Rome World Championships Grand Prix, 92 matches from the Sofia World Championship Grand Prix, and 173 matches from the 2022 Rome World Championships Grand Prix. In total, 337 game videos were analyzed to assess the players‘ game content before and after the rule revision. RESULTS Analyzing the basic skills before and after the revision shows that the frequency of round kicks and pushes was high. Notably, while the frequency of round kicks, which are primarily used by players, decreased after the revision, the scoring success rate increased. CONCLUSIONS Based on the research findings, it is believed that post-revision, players are focusing more on game management aimed at scoring rather than attempting preliminary movements or connecting kicks to deceive their opponents.
PURPOSE This study aimed to investigate the current status of KADA’s chaperone management in order to suggest policy proposals for the establishment of a stable and sustainable chaperone pool. METHODS We conducted a literature review and document analysis, along with formal and informal dialogues with experts to supplement the data that could not be obtained through these methods. RESULTS This study suggested practical ways for KADA to establish a chaperone pool by leveraging the government’s volunteer platform and collaborating with universities that have sports-related departments across Korea. In addition, it proposed specific approaches to promote and encourage university students to engage with chaperoning. CONCLUSIONS It is anticipated that this study will facilitate the implementation of the proposed policies in the field of sports and position KADA as a model for other NADOs in terms of chaperone pool composition.
PURPOSE This study aimed to explore methods for stimulating consumer purchasing behavior in the sportswear market, where gaining a competitive edge through traditional means has become increasingly challenging, by focusing on the recently highlighted environmental, social, and governance (ESG) management practices. The objective was to present strategic alternatives for sportswear brands grounded in sustainable management and value creation. METHODS The research employed SPSS 21.0 and AMOS 21.0 for frequency analysis, reliability and validity analysis, confirmatory factor analysis, structural equation modeling, and mediation effect analysis. RESULTS First, among the sportswear brand‘s ESG message trust and ESG authenticity, only ESG authenticity positively impacted consumer behavior. Second, both the sportswear brand‘s ESG message trust and ESG authenticity were found to positively influence ESG congruence. Third, ESG message trust and ESG authenticity negatively affected ESG skepticism. Fourth, ESG congruence positively impacted consumer behavior. Fifth, ESG skepticism was found to negatively influence consumer behavior. The mediation effect analysis yielded the following results: First, the direct effect of ESG message trust on consumer behavior was not statistically significant; however, a full mediation effect was observed through ESG congruence and skepticism. Second, the direct effect of ESG authenticity on consumer behavior was statistically significant, with a partial mediation effect through ESG congruence and skepticism. CONCLUSIONS For sportswear brands to achieve sustainable management and profit generation, it is essential to explore methods for stimulating consumer purchasing behavior based on trust and authenticity in ESG messages.
PURPOSE This study aimed to develop the theory of child abuse of children with disabilities in Adapted Physical Education (APE). METHODS A grounded theory study was conducted based on a constructivist approach. Data were collected via in-depth interviews. Participants were 20 instructors selected based on theoretical sampling. The collected data were analyzed in the order of open coding, axial coding, and selective coding. RESULTS First, the direct causal conditions of abuse of children with disabilities in APE were the instructors’ and guardians’ distorted perception towards the disabled children along with the individual vulnerability of children with developmental disabilities. Second, the contextual conditions that form the background of the abuse of children with disabilities in APE included the burden of the instructor due to the unjust demands of the guardian of the child, the growth background of the instructor, and the repressive atmosphere of APE. Third, abuse of children with disabilities can be divided into three types: ‘active abuse’ based on the instructor’s distorted viewpoint of the child with a developmental disability, ‘passive abuse’ due to the unjust demands of the guardian, and ‘passive abuse’ due to the structural problems in the APE field. Fourth, the abuse of children with disabilities in APE, which can be distinguished by different characteristics, affects the instructor’s inner conflict and self-reflection. CONCLUSIONS This study approached the phenomenon of abuse of children with disabilities in Korean adapted physical education as a grounded theory, and the theory generated is expected to contribute to the establishment of strategies necessary to design adapted physical education in keeping with human rights.
PURPOSE This study aimed to examine the mediating effect of psychological needs in the relationship between multiple coaching styles and teamwork among college football players. METHODS This cross-sectional study involved 526 elite football players. Descriptive statistics, reliability analysis, confirmatory factor analysis, correlation analysis, path analysis, and macroprocess were performed using statistical software to test the mediation effects of the data collected. RESULTS The findings suggested that autonomy-supportive and structure coaching styles positively correlated with and impacted psychological needs satisfaction and teamwork. Conversely, control and chaos coaching styles negatively correlated with and impacted psychological needs satisfaction and teamwork. In addition, autonomysupportive and structure coaching styles negatively correlated with and impacted psychological need frustration, while control and chaos styles positively correlated with and impacted psychological needs frustration. Furthermore, psychological needs satisfaction and frustration were found to partially mediate the relationships between autonomy support and teamwork, structure and teamwork, control styles and teamwork, and chaos styles and teamwork. CONCLUSIONS Autonomysupportive and structure coaching styles positively influenced teamwork by satisfying psychological needs. In contrast, control and chaos coaching styles negatively impacted teamwork by contributing to psychological needs frustration.
This article analyzes and compares the methodologies used in physical activity participation surveys from England, Australia, and South Korea. Specifically, it examines the “2021–22 Active Lives Adult Survey” from England, the “2021–22 AusPlay (15+)” from Australia, and the “2022 National Sports Participation Survey” from South Korea, highlighting both similarities and differences in their approaches. The analysis led to two key insights. First, there is a need to expand the scope of respondents in South Korea’s National Sports Participation Survey. Currently, the survey targets only 0.02% of the population aged ≥10 years, whereas the surveys in England and Australia gather data from a wider age range and more diverse regions. Therefore, South Korea should adopt online, postal, and mobile survey methods to widen the respondent pool and enhance the representativeness and reliability of the data collected. Second, South Korea needs to update its physical activity participation standards. The current benchmarks fall below international recommendations. Establishing new criteria that specify activity duration, intensity, and type is essential for effectively improving public health policies. The results of this study emphasize the importance of accurately assessing and enhancing physical activity participation in South Korea. These findings are expected to contribute to the development of effective sports policy standards in line with the World Health Organization’s global action plan.
