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1 The Effect of Role-modeling on Student Swimmers’ Sport Confidence: Focusing on the Moderating Effect of Perfectionism
Junehyuck Yang(Seoul National University, Department of Physical Education, Master's degree) ; Seungjoo Lee(Seoul National University, Department of Physical Education. Ph.D.) ; Sungho Kwon(Professor, Department of Physical Education, Seoul National University) Vol.36, No.3, pp.264-274 https://doi.org/10.24985/kjss.2025.36.3.264
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Abstract

PURPOSE This study examined the relations among role modeling, sports confidence, and perfectionism to provide foundational insights into nurturing positive sports confidence in student swimmers. METHODS The survey included a total of 237 middle and high school swimmers registered with organizations under the Korean Sport and Olympic Committee. The analysis included data from 231 participants after excluding 6 insincere responses. The construct validity of the measurement tools was assessed using confirmatory factor analysis, while the basic characteristics of the measured variables and their interrelations were examined using descriptive statistics and correlation analysis. Moderating effects were tested using PROCESS Macro Model 1. RESULTS First, role modeling (r =.274–.471, p <.05) and perfectionistic striving (r =.301–.428, p <.05) showed a positive relation with sports confidence. Second, perfectionistic concern (r =−.056 to −.218, p <.05) was negatively associated with sport-confidence. Third, in the relation between role modeling and sports confidence, the moderating effect of perfectionistic concern was not significant whereas that of perfectionistic striving was statistically significant(ΔR 2=.019, p <.05). CONCLUSIONS Perfectionistic striving may play a positive role in enhancing student swimmers’ sports confidence. Specifically, striving for perfection may facilitate sports confidence improvement among athletes who observe and emulate their role models’ performance and behaviors.


2 Development and Application of Athlete Psychological Conditioning Program
Sungho Kwon(Professor, Department of Physical Education, Seoul National University) ; Jieun Won(Seoul National University, Department of Physical Education, Ph.D.) ; Seungjoo Lee(Seoul National University, Department of Physical Education, Instructor) ; Doheung Lee(Seoul National University, Department of Physical Education, Instructor) ; Taiwoo Kim(Seoul National University, Department of Physical Education, Ph.D.) Vol.36, No.3, pp.387-401 https://doi.org/10.24985/kjss.2025.36.3.387
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Abstract

PURPOSE This study aimed to develop and examine the applicability and effectiveness a psychological conditioning program based on the principle of periodization as an alternative to conventional problem-focused and short-term psychological skills training. It intends to systematize and support the long-term regulation of the psychological preparation of golf and soccer players. METHODS The study followed the six-step procedure of the Intervention Mapping Protocol. It recruited 16 professional athletes (7 golfers and 9 soccer players) during the development phase and an additional 20 athletes (9 golfers and 11 soccer players) for the subsequent implementation and evaluation phases. Program effectiveness was assessed as follows. Semi-structured interviews were conducted to gain indepth insights into the program’s impact (qualitative evaluation), and, the Test of Performance Strategies-2 and a condition measurement tool were administered (quantitative evaluation). RESULTS The qualitative findings indicated that the program supported athletes in better regulating anxiety, reducing negative thoughts, and recovering more quickly from mistakes. The quantitative results demonstrated significant improvements in athletes’ psychological skills and overall condition levels. CONCLUSIONS This results indicate that undergoing a periodized psychological conditioning program can effectively enhance athletes’ psychological skills and support the maintenance of psychological homeostasis. For a broad implementation, a structured support system should be established to replace one-time interventions, thus enabling continuous feedback and practical application to help athletes sustain optimal psychological states during competition.


3 The Relationship between Julsil and Self-Management in Male Adolescent Athletes: The Moderating Effects of Achievement Goal Orientation
Hangyeol Lee(Seoul National Universtiy) ; Sungho Kwon(Seoul National Universtiy) Vol.35, No.4, pp.588-599 https://doi.org/10.24985/kjss.2024.35.4.588
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Abstract

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.


4 Exploring the Intentional Nonverbal Behavior Experience Process of Table Tennis Players
Jieun Won(Physical Education, Seoul National University) ; Sungho Kwon(Physical Education, Seoul National University) Vol.35, No.3, pp.525-536 https://doi.org/10.24985/kjss.2024.35.3.525
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Abstract

PURPOSE Players’ nonverbal behavior during a game may be expressed through selfregulatory and intentional processes, where nonverbal cues are strategically used to achieve specific outcomes. This study aimed to observe and explore the strategic and intentional nonverbal behaviors utilized by table tennis players. METHODS The study utilized a grounded theory methodology and involved purposeful sampling of ten adult table tennis players. Semi-structured face-to-face interviews were conducted. The collected data were analyzed using open, axial, and selective coding techniques. RESULTS The findings revealed that players’ intentional nonverbal behaviors are influenced by their confidence levels, physical condition, and perceptions of others’ nonverbal cues. Throughout this process, players underwent various emotional experiences, worked to maintain a positive mental state, and experienced changes in both their behaviors and psychological states, which impacted the flow of the game. CONCLUSIONS This study’s results provide valuable insights into the role of intentional nonverbal behaviors utilized by athletes during competitions. This suggests that understanding and incorporating intentional nonverbal behavior should be a key consideration in sports psychology counseling and psychological skills training.


5 The Relationship Between Adolescent Athletes’ Julsil and Competitive Trait Anxiety: The Mediating Effects of Self-Management
Doheung Lee ; Sungho Kwon Vol.35, No.2, pp.328-336 https://doi.org/10.24985/kjss.2024.35.2.328
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Abstract

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.


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