• Journal of Korean Orthopaedic Sports Medicine
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• v.9 no.1
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• pp.65-68
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• 2010

Operative treatment including a bone graft and an internal fixation was done in a fifteen-year old wrestler with transverse olecranon stress fracture. At 6 weeks after the operation, he could start active muscle strengthening exercise and returned to the previous level of exercise at 6 monthes after surgery. Conservative treatment including resting and muscle strengthening exercise was performed in an eighteen-year old baseball player with oblique olecranon stress fracture. At the follow-up of three months, he could start staged throwing exercise without pain or tenderness. He returned the previous level of throwing following strengthening exercise for 6 months.

• 대한정형외과스포츠의학회:학술대회논문집
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• 2005.04a
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• pp.14-20
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• 2005

• The Korea Beekeeping Bulletin
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• s.196
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• pp.6-6
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• 1996

• Journal of Digital Convergence
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• v.14 no.3
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• pp.465-471
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• 2016

This study intends to figure out the relationship between autonomy and achievement motivation of the university players. For this purpose, Survey was performed to Seoul and Metropolitan area's 25 sports 396 Players., And using SPSS 18 and AMOS program descriptive statistics, exploratory factor analysis, confirmatory factor analysis, reliability analysis were conducted. Based on purified data through the process, the relationship between autonomy and achievement motivation was verified with correlation analysis and regression analysis. As a result, autonomy was recognized by male player higher than female player, and in goal-orientation of the access tendency of achievement goal orientation, male player showed higher scores. And in mastery-avoidance of avoidance, female player showed higher scores and in performance-avoidance, male player showed higher scores. According to regression analysis, autonomy affects mastery-approach and achievement goal orientation of the performance-approach.

• Korean Journal of School Psychology
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• v.18 no.3
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• pp.371-398
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• 2021

Student-athletes identify themselves as athletes first and students second and experience identity foreclosure in which they rarely consider other possibilities for their career besides professional athletes. There is a gap between the career education that college student-athletes and regular students get, so we conducted this study to test the effectiveness of a career education program. The proposed career education program was based on Super and Ginsberg's career development theory and Holland's career choice theory. Data were collected from 13 college student-athletes using a pretest-posttest research design and analyzed using a t-test. The program was conducted in the form of 90-minute weekly sessions over 3 weeks. The program's effectiveness was measured in terms of participants' stress from a lack of career information, career preparedness, self-understanding, and career decision-making self-efficacy. The results showed that each variable, except stress from a lack of career information, was significantly improved after the program compared to before the program, indicating that the program was effective. Theoretical and practical implications regarding career education for student-athletes are discussed in this paper.

• Journal of Digital Convergence
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• v.16 no.1
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• pp.371-379
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• 2018

The purpose of this study was to investigate the effects of maladaptive perfectionism and stress coping on chronic fatigue of adolescent athletes. In order to achieve these purposes, a questionnaire survey was conducted with 254 adolescent athletes. The following conclusions were obtained. 1. In the stress coping and chronic fatigue level by maladaptive perfectionism level, the higher the level of maladaptive perfectionism showed a high level of emotional mitigation coping, wishful thinking seeking and chronic fatigue. 2. The correlation between maladaptive perfectionism, stress coping and chronic fatigue showed a significant level between each sub-factor. 3. The influence that maladaptive perfectionism and stress coping have on chronic fatigue are "anxiety about a mistake", "a doubt about the performance", "emotional mitigation coping" and "wishful thinking seeking". This result suggest importance of dealing with maladaptive perfectionism and stress coping in reduce the chronic fatigue.

• Journal of Digital Convergence
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• v.14 no.5
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• pp.493-500
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• 2016

This study aims to verify the relationship between a motivational climate and self-management perceived by athletes. 195 male and 153 female athletes participated in this study. Firstly, reliability and validity are verified for questionnaires, and descriptive statistics, one way ANOVA, and regression analysis are used. The result of the correlation analysis says that all the factors have meaningful relations among them. The analysis on the effects of the motivational climate on self-management indicates that the mastery climate perceived by the athletes has affected statically the sub-factors of self-management such as mental management, training, management, personal relationship management, life management, health management, and intrinsic behavior control. However, the competitive climate didn't help self-management. Based on the study, it was suggested that through the mastery climate, a leader should make athletes manage and control themselves in terms of conquest strategies, self-assessment, problem-solving and decision-making skills, self-control, goal setting, efforts to strengthen oneself, and plan.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.3
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• pp.1194-1202
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• 2012

Adiponectin and Gut hormones(insulin, glucagon, ghrelin, PYY and GLP-1) are recently discovered peptides that are associated with lipid metabolism, insulin resistance, and control appetite. The purpose of this study was to investigate the effects of acute treadmill exercise(walking, 45min ; all-out running, 5min) on Adiponectin and gut hormones in high school ssireum player(light class, n=8; heavy class, n=8). From the experimental results, Adiponectin and ghrelin of light class were significantly higher than heavy class(p<.05), but there was no difference between pre and post exercise. Insulin level of heavy class was significantly higher than that of light class(p<.01) and no difference between pre and post exercise. Only glucagon significantly increased after exercise(p<.01), but no difference between classes. PYY and GLP-1 were no difference on classes and pre vs. post-exercise. The result of this study suggest that adiponectin, ghrelin and insulin were affected by body weight(light class vs. heavy class) and glucagon was affected by acute exercise.

• Korean Journal of Applied Biomechanics
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• v.19 no.3
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• pp.549-555
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• 2009

The purpose of this study was to quantify the isokinetic peak torque and range of motion at the shoulder in 8 national male volleyball players who played during the 2008 professional leagues. In this study the strength and range of motion data in the internal rotation(IR) and external rotation(ER) of shoulder joint were measured with isokinetic measurement system(Biodex Inc) and motion analysis system (Simi motion system Inc.) from 3 volleyball players with atrophy of the infrasupinatus and 5 volleyball players without atrophy of the infraspinatus. Peak torques were determined using isokinetic measurement on the shoulder joint rotator at the point of angular velocities of $60^{\circ}$/s. Significant difference was found in the peak torque, IR / ER ratio and the range of motion through assessment of the dominant shoulder between two groups. we recommended functional exercises that improve both external rotators strength and stretching exercise for internal rotation in the dominant side during the prevention programs in volleyball players.

• Clinics in Shoulder and Elbow
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• v.5 no.1
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• pp.10-14
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• 2002