PURPOSE This study examined Julsil impact on self-management and the moderating effect of achievement goal orientation in adolescent male athletes. METHODS Adolescent male athletes (n=248) registered with the Korean Sports & Olympic Committee participated in a survey. After exclusion of data from seven respondents who provided insincere responses, 241 responses were used for the final analysis. After verification of the measurement tool’s construct validity, technical statistical analysis and correlation analysis were performed. Finally, multiple regression analysis and PROCESS Macro (Model 1) were used to verify the research hypothesis. RESULTS 1) Male adolescent athletes’ Julsil and 2) task goal orientation had significant positive effects on self-management,, but ego goal orientation did not. 3) The moderating effect of task goal orientation on the relationship between Julsil and self-management was significant, but that of ego goal orientation was not. CONCLUSIONS 1) Male adolescent athletes’ Julsil and 2) task goal orientation had significant positive effects on self-management,, but ego goal orientation did not. 3) The moderating effect of task goal orientation on the relationship between Julsil and self-management was significant, but that of ego goal orientation was not.
PURPOSE Using GPS data from actual field hockey matches, this study examined the effects of position and substitution time on the physical performance of elite female players. METHODS From 25 matches played in 2023, data involving 26 players were collected. Players’ positions were classified as forwards (FW), midfielders (MF), and defenders (DF). Substitution times were segmented into 5, 10, and 15 minutes, respectively. A two-way ANOVA was employed to analyze movement patterns across different exercise intensities as influenced by player position and substitution time, followed by Bonferroni post-hoc tests for further detailed analysis. RESULTS Analysis revealed that both position and substitution time significantly affected exercise intensity. Notably, at a substitution time of 5 minutes, substantial differences were observed in high-intensity movements, including the distance covered at high-intensity and the frequency of high-intensity efforts. Furthermore, the substitution time’s impact was particularly pronounced among forwards and midfielders. CONCLUSIONS Findings suggest that shorter substitution times can enhance players’ active movement, thereby supporting maintenance of tactical adjustments and positively influencing overall performance. Implementing shorter substitution times could be particularly beneficial for optimizing team performance, especially for players in forward positions.
PURPOSE This study developed and applied a group counseling program for university athletes’ career development. METHODS Following Kim’s (2002) procedure for developing group counseling, this program was based on social cognitive career theory and finalized by using two preliminary studies and expert validation evaluation. Afterward, Taekwondo players from University A in Chungcheongnam-do and University B in Seoul were assigned to experimental and control groups, respectively, and then a nonequivalent control group design was conducted. The experimental group was provided with a six-step career group counseling program, including introduction, understanding personal and distal context, enhancing self-efficacy and outcome expectations, developing career interest, deciding on a career, and closing, for ten 45-minute sessions, twice a week. RESULTS First, results of two-way repeated measures ANOVA showed statistically significant changes in career decision self-efficacy (self-appraisal, occupational information, goal selection, planning, and problem-solving) and career attitude maturity (determination, certainty, and independence). Second, analysis of the outcome assessment by session showed the following positive results: consideration about the future after sports retirement, self-understanding, identification of jobs that fit aptitude, improvement of self-efficacy, having a positive mindset when switching careers, confidence in one’s preferred career, exploration into solutions to career barriers, understanding of preferred career, setting specific career goals, and deeper understanding of careers. CONCLUSIONS In sum, these findings indicate that the career counseling program had a positive effect on university athletes’ career development. We hope this study will serve as a catalyst to expand the discussion on retirement from sports and career development.
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 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 analyzed the effect of dynamic lumbar kyphosis on the biomechnical factors affecting the lumbar joints during deep squats. METHODS Thirty adults in their 20s who had experienced weight training for more than one year participated in this study (age: 23.4±3.5years old, height: 175.3±4.3cm, weight: 75.8±6.5kg, squat single repetition maximum (1RM) weight: 115.3±19.5kg). Under both restricted dynamic lumbar kyphosis (RDLK) and dynamic lumbar kyphosis (DLK), subjects completed one repetition of deep squats at a load of 70% of their 1-RM weight. To verify the consistency of deep squat movements performed under DLK and RDLK conditions, intra-rater reliability was analyzed using intra-class correlation . The biomechnical variables of the lumbar joint were calculated during DLK and RDLK deep squats. Paired sample t-tests (IBM SPSS 27.0, Armonk, New York, USA) were used for statistical verification. RESULTS During the deep squat movement performed in DLK and RDLK conditions, the peak angles of the ankle, knee, and hip joints, the minimum height of the pelvis, and the time and tempo showed statistically high reliability, confirming the accuracy of the movement. The peak flexion angle and moment, left flexion moment, left rotation moment, and compression force factors of the lumbar joint during deep squat were significantly lower in RDLK than in DLK. CONCLUSIONS Restricting lumbar dynamic kyphosis during deep squats is essential for decreasing the risk of lumbar joint injury.
PURPOSE This study aimed to verify the relationship between adolescent athletes’ julsil, competitive trait anxiety, and self-management. METHODS A total of 370 adolescent athletes who were registered with the Korean Sport & Olympic Committee participated in the survey; 24 insincere responses were excluded from the analysis, leaving a total of 346 participants. After verifying the construct validity of the measurement tool used in the survey, statistical and correlation analyses were performed. The research model was subsequently verified using structural equation modeling. RESULTS Adolescent athletes’ julsil had a significant positive effect on self-management but not on competitive trait anxiety. In addition, self-management was found to have a significant negative effect on competitive trait anxiety, and also completely mediated the relationship between julsil and competitive trait anxiety. CONCLUSIONS Adolescent athletes’ julsil does not increase competitive trait anxiety, but rather plays a role in reducing it by increasing self-management. These findings unveil mechanisms through which julsil can be used to enhance athlete performance.
PURPOSE This study aimed to investigate the effects of accelerated rehabilitation exercise on physical fitness, lower extremity isometric strength, and blood variables in older adult women diagnosed with degenerative osteoarthritis. METHODS A total of 29 older adult women diagnosed with degenerative osteoarthritis residing in G city participated in the study, and 19 participants, excluding dropouts, took part in the experiment. They underwent exercise twice a week for 60 minutes per session over a period of 12 weeks. Pre- and post-experiment, the older adult fitness assessment (SFT), lower extremity isometric strength, and blood variables were measured. Data analysis was performed using SPSS 25.0, and paired sample t-tests were conducted to examine the effects before and after exercise. RESULTS The study results showed significant differences in body mass index (BMI) before and after exercise (p<0.05), and the older adult fitness assessment (SFT) showed significant differences in all items (p<0.01). Lower extremity isometric strength showed significant differences in absolute (Nm) and relative (%BW) values of 20° right flexion muscle (p<0.01). In terms of blood variables, significant differences were observed in creatine and ESR before and after exercise (p<0.01). CONCLUSIONS This study’s results suggest that regular physical activity and rehabilitation exercise programs can positively impact the muscular strength, cardiovascular endurance, exercise function, and blood composition of older adult women diagnosed with degenerative osteoarthritis. It is indicated that conducting future research, including periodic exercise programs, could be beneficial in promoting sustained exercise participation.
PURPOSE This study aimed to investigate the effects of different resistance training structures on basic physical fitness, 1-repetition maximum (1RM), and isokinetic shoulder and knee muscle functions in male college students. METHODS Forty college students were divided into four groups: control group (CG, n=10), compound set training group (CSG, n=10), pyramid set training group (PSG, n=10), and superset training group (SSG, n=10). Excluding CG, each group performed a different resistance exercise method at an intensity of 60~80% 1RM for 60~90 min, three times a week for eight weeks. To compare the effects of resistance training structures, we confirmed body composition, basic physical fitness, 1RM, as well as isokinetic shoulder and knee functions. RESULTS Results indicated that the PSG exhibited the most significant improvement in relative peak torque in isokinetic shoulder and knee testing compared to the other groups. Additionally, all exercise groups positively affected back strength, 40m sprint, and 1RM compared to the CG, although no significant differences were observed among exercise groups. CONCLUSIONS The findings suggest scientific evidence supporting the effectiveness of pyramidal resistance training in improving isokinetic shoulder and knee muscle functions in male college students.
PURPOSE This study aimed to verify the influence of imposter syndrome tendencies in athletes on their achievement goal orientation, and regulatory focus. METHODS Data collected from 413 athletes through surveys were analyzed using SPSS version 27.0 and AMOS version 21.0 to assess reliability and validity, conduct independent sample t-tests, perform correlation analysis, and conduct multiple regression analyses. RESULTS The findings revealed significant sex-based differences in imposter syndrome tendencies, achievement goal orientation, and regulatory focus. Moreover, significant correlations were observed between sub-factors of imposter syndrome, achievement goal orientation, and regulatory focus. Imposter syndrome tendencies had varying effects on achievement goal orientation, with the discount factor significantly influencing approach orientation, the fake factor significantly affecting avoidance orientation, and fear factors significantly impacting self-avoidance. Additionally, imposter syndrome tendencies influenced regulatory focus, as the discount factor significantly affected both promotion focus and prevention focus, while fake and fear factors significantly influenced prevention focus. CONCLUSIONS This study underscores the importance of athletes' imposter syndrome tendencies as significant contributors to psychological variables related to motivation, including achievement goal orientation and regulatory focus.
