Young-Kyun Sim

Young-Kyun Sim


Research Focus & Metrics

Academic Career Length

3Years (2024-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
25 April 2024 in Healthcare
Verified
Journal Article
Open access
PDF file
SKSong-Eun Kim
Song-Eun Kim
JBJun-Su Bae
Jun-Su Bae
ESEunchul Seo
Eunchul Seo
WSWi-Young So
Wi-Young So
YSYoung-Kyun Sim
Young-Kyun Sim
The population of older adults is increasing more rapidly in Korea than in any other country, making successful aging a salient need in Korean society. For successful aging, older adults must engage in sports activities regularly. This study determined the relationships among health beliefs, exercise adherence intention, health promotion behavior, and successful aging among older adults who engage in sports activities regularly. The participants were 287 adults aged 65 years or older who live in Korea and exercise regularly. Data were collected through a survey and analyzed using descriptive statistics, correlation analysis, and structural equation modeling. The integrated model lacked explanatory power in terms of goodness of fit, but the alternative model had sufficient explanatory power. The alternative model showed that health beliefs, exercise adherence intention, and health promotion behavior are significantly related and that health promotion behavior positively predicts successful aging. It also showed that health beliefs affect successful aging through the mediation of exercise adherence intention and health promotion behavior. This study is meaningful because it verifies the structural and theoretical relationships among health beliefs, exercise adherence intention, health promotion behavior, and successful aging. As a result, it provides information that can improve the welfare of older adults in Korean society.

26 October 2024 in Healthcare
Verified
Journal Article
Open access
PDF file
SWSeung-Hwan Woo
Seung-Hwan Woo
JSJae-Pil Seo
Jae-Pil Seo
HKHyun-Ryun Kim
Hyun-Ryun Kim
WSWi-Young So
Wi-Young So
YSYoung-Kyun Sim
Young-Kyun Sim
Objectives: The Republic of Korea is progressively becoming a super-aged society, emphasizing the need for regular physical activity among older adults because it has physical, psychological, and social benefits. Recently, increasing depression and suicide rates have been reported among older adults living alone. However, research that considers older adults’ living situations is limited. Therefore, this study aimed to analyze the relationship between health-promoting behaviors (HPB), physical self-efficacy (PSE), exercise adherence, and sports commitment among older adults aged ≥ 65 years who participated in sports activities and investigate the influence of their living situation. Methods: The participants were 452 individuals aged ≥ 65 who lived in the metropolitan areas of Chungcheong-do, Jeolla-do, and Gwangju Provinces, Republic of Korea, and who regularly participated in sports activities (men = 283, women = 169). This study was conducted from January to May 2024. Data were collected using a structured and validated questionnaire, and the collected data were analyzed using descriptive statistics, correlation analysis, structural equation modeling, and multi-group analysis. Results: Structural equation modeling showed that the research model was appropriate, and all five paths showed statistical significance. The identity of the model was verified in the multi-group analysis, but path coefficients differed between older adults living alone and those living with family members. HPB significantly affected PSE, exercise adherence, and sports commitment among both groups of older adults. However, the impact of PSE on exercise adherence and sports commitment was not statistically significant among older adults living alone. Conclusions: The results highlight the need to consider older adults’ living situations when establishing regular physical activity. Efforts should also be made to promote regular exercise participation among older adults living alone.

17 June 2024 in Measurement in Physical Education and Exercise Science
Verified
Journal Article
Closed access
JBJunsu Bae
Junsu Bae
YSYoung-Kyun Sim
Young-Kyun Sim
ESEunchul Seo
Eunchul Seo
GSGeonwoo Seo
Geonwoo Seo
YNYunbae Nam
Yunbae Nam

24 August 2025 in Scientific Reports
Verified
Journal Article
Open access
PDF file
YSYong-Quan Shen
Yong-Quan Shen
YSYoung-Kyun Sim
Young-Kyun Sim
JBJunsu Bae
Junsu Bae
IBIn-Ju Bang
In-Ju Bang
JSJae-Pil Seo
Jae-Pil Seo
In the literature on high-competition sports, some evidence has been suggested regarding the relationships between athletes’ grit, self-regulation, competition preparation, and confidence. However, there has been a lack of integrated approaches to examine the relationships among these variables, and the performance level of athletes have not been considered. Therefore, this study (a) analyzed the structural relationships between grit, self-regulation, competition preparation, and confidence, and (b) investigated how these relationships vary according to athletes’ performance levels. Participants were 270 student-athletes (209 males, 61 females) from various sports, all of whom were involved in highly competitive sports in South Korea. Athletes who had won at least one national-level competition were classified into the medal winner group (n = 112), while those without such experience were classified into the non-medal winner group (n = 158). Multi-group analysis showed that the structural relationships among grit, self-regulation, competition preparation, and confidence varied according to the athletes’ performance levels. In the medal winner group, self-regulation fully mediated the effect of competition preparation on confidence, whereas in the non-medal winner group, the mediation was partial. Furthermore, the path estimates for self-regulation, competition preparation, and confidence were found to be greater in the medal winner group. This study highlights that coaches should understand athletes’ performance levels and apply appropriate strategies accordingly.

5 March 2026 in Frontiers in Psychology
Verified
Journal Article
Open access
PDF file
YCYeonho Choi
Yeonho Choi
YSYoung-Kyun Sim
Young-Kyun Sim
KHKisun Hwang
Kisun Hwang
JBJunsu Bae
Junsu Bae
Introduction: This study empirically examined the role of perceived parental autonomy support in promoting moral behavior among student-athletes through the Trans-Contextual Model (TCM). Methods: Using data from 355 Korean high school athletes across 16 sports, we investigated the effects of autonomy support on autonomous and controlled motivations in everyday and sport contexts, and their subsequent influence on moral attitudes, subjective norms, perceived behavioral control, and prosocial and antisocial behaviors. Results: Structural equation modeling revealed that parental autonomy support positively influenced both autonomous and controlled motivations in daily life, which then transferred to sport contexts. Autonomous motivation significantly predicted moral beliefs and intentions, leading to increased prosocial and decreased antisocial behaviors. Interestingly, controlled motivations also positively impacted subjective norms, suggesting complex motivational processes underlying moral conduct. Conclusion: These findings extend previous research by integrating Self-Determination Theory and the Theory of Planned Behavior, highlighting the importance of motivational quality and contextual transfer in shaping athletes’ moral actions. Practical implications for coaching, parental education, and athlete development programs are discussed, along with directions for future longitudinal and cross-cultural research.

31 May 2025 in Journal of Broadcast Engineering
Verified
Journal Article
Open access
HLHarang Lee
Harang Lee
KYKyoungro Yoon
Kyoungro Yoon
YSYoung-Kyun Sim
Young-Kyun Sim