• Proceedings of the Korea Information Processing Society Conference
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• 2011.11a
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• pp.1203-1206
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• 2011

출범 30주년을 맞은 국내 프로야구가 600만 관중을 넘어섰다. 국내 프로야구의 인기가 그만큼 높으며 식을 줄을 모른다.[7] 하지만 많은 선수와 복잡한 규칙은 새로운 야구팬을 주춤하게 만든다. 본 논문을 통하여 필자는 새로운 방식의 야구선수 분석 방법을 제안하고자 한다. 새로운 방식의 야구선수 분석 방법은 쉽고 간단하게 야구선수들의 특성을 분석하여 표현할 것이며, 야구를 좋아하고자 하는 사람들은 조금 더 쉽게 다가갈 수 있을 것이다.

• Korean Journal of Psychosomatic Medicine
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• v.31 no.2
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• pp.134-141
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• 2023

Objectives : The purpose of this study was investigating the differences in temperament, personality, and cognitive function among athletes and non-athletes, as well as differences within athlete groups participating in different-paced sports like baseball and basketball. Methods : A total of 57 professional basketball players, 51 professional baseball players, and 44 non-athletes subjected to temperament and characteristics inventory assessments and computerized neurocognitive function test. One-way analysis of variance (ANOVA) was employed to analyze the average differences in demographic characteristics, temperament, personality traits, and cognitive functions among the three groups, followed by Bonferroni post hoc tests. Comparisons between starters and non-starters within the athlete groups were conducted using the Mann-Whitney U test. Results : In the analysis of temperament, the basketball and baseball player groups exhibited higher reward dependence and persistence compared to the control group. Additionally, in the assessment of personality traits, both basketball and baseball player groups scored higher in self-directedness and cooperativeness compared to the control group, whereas self-transcendence scores were lower. In cognitive ability assessments, baseball and basketball players outperformed the control group in emotional perception tests. Both baseball and basketball players showed lower card movement counts compared to the control group. Conclusions : This study compared the differences in temperament, personality, and cognitive abilities between professional basketball and baseball players and non-athletes. These results provide valuable insights into the temperament, personality, and cognitive abilities of professional athletes, contributing important information for athlete development and coaching goals in the future.

• Journal of Digital Convergence
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• v.14 no.12
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• pp.525-535
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• 2016

The purpose of this study was to evaluate the effect of thoracic dynamic stretching with elastic band on the ROM and ball speed for baseball player. For this purpose, 11 baseball players of the I city high school and university performed thoracic dynamic stretching with elastic band before throwing a ball. After stretching, we measured the ROM and ball speed and compared. The results were as follows. First, ROM after stretching showed a significant increase immediately compared with before stretching. Second, the speed of the ball was significantly increased after stretching compared with before. These results indicated that thoracic dynamic stretching with elastic band for baseball players might have a positive effect on ball speed as well as ROM.

• Journal of Korean Orthopaedic Sports Medicine
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• v.11 no.2
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• pp.75-81
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• 2012

Purpose: To evaluate the ultrasonographic (US) findings in both shoulders of asymptomatic high school baseball players and compare with healthy control. Materials and Methods: 42 individuals (age: $7.6{\pm}1.2$ years) participated in this study. We recruited two groups of high school male baseball players, 14 pitchers and 18 fielders without shoulder pain for recent 6 months as well as one control group of 10 untrained healthy high school students who were age-matched. Ultrasound measurements of thickness of the biceps and supraspinatus tendon and acromio-humral distance (AHD) at $0^{\circ}$ abduction were taken in dominant and nondominant shoulders. Results: On US examination, subacromial bursa effusion was observed in 7 of the dominant shoulders and in 2 of the nondominant shoulder of 32 baseball players and in none of the asymptomatic controls. The thickness of the biceps and supraspinatus tendons and AHD in both shoulders were significantly greater in the baseball players than in the controls (p<0.05). We also found that the biceps and supraspinatus tendon thickness and AHD of the dominant shoulder were significantly greater than the non-dominant shoulder in baseball players (p<0.05), but there were no differences between pitchers and fielders and between healthy controls. Conclusion: Subacromial effusion could be found even in the asymptomatic stage and the thickness of the biceps and supraspinatus tendons and AHD were significantly greater in the baseball players than in the healthy controls. Our data is useful reference guide for the ultrasonographic diagnosis of shoulder pathologies occurring in high school baseball players.

• Journal of the Korea Convergence Society
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• v.10 no.7
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• pp.261-266
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• 2019

The purpose of this study was to investigate the effects of coordinative locomotor training wit on balance and flexibility of elementary school baseball players. A sample of 30 subjects were recruited for this study. Coordinative locomotor training group(n=15) with elastic band and coordinative locomotor training group(n=15) were six times a week for four. For evaluation of balance, Biorescue was used and for evaluation of sit-and-reach. The results were as follows: there were significant differences in balance and flexibility accoording to time. From the results, elastic band in coordinative locomotor training is expected to be an effective intervention for elementary school baseball players.

• Journal of the Korea Society of Computer and Information
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• v.27 no.11
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• pp.251-256
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• 2022

In this paper, we propose the effects of coordinative locomotor training in body alignment of high school baseball players. Coordinative locomotor training was applied to 20 subjects in the experimental group for 30 minutes, 5timess aweek for 4 weeks. Body alignmen was measured using a formertic, and variables representing body alignment included trunk inclination, trunk imbalance, pelvic tilt, pelvic torson, kyphotic angle and lordotic angle. The results of this study were as follows: As for the Body alignment, there were significantly increased in kyphotic angle and lordotic angle in the experimental group. From the above results, it seems that coordinative locomotor training has a positive effects on the body alignment of high school baseball players. The coordinative locomotor training was able to produce confirmation that body alignment change in the case of effective exercise interventions in high school baseball players. Coordinative locomotor training is thought to be effective in preventing physical imbalance in high school baseball.

• Journal of Digital Convergence
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• v.14 no.11
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• pp.539-547
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• 2016

The study is conducted to investigate the prevalence of a yips phenomenon in high school baseball players and provide the basis of its origin and an effective treatment intervention. Therefore, we survey 320 high school baseball players registered at Korea Baseball Association, excluding poorly answered 30 questionnaires. Utilizing PASW 20.0, the analysis of yips experiences and a coping method is carried out with descriptive statistics and ratio analysis. The results from the process above are as follows. The ratio of high school baseball players who experience yips reaches 64%, which is significantly high; experiencing yips, they have both physical and psychological problems; although they would have psychological trainings, few of them work, which implies that the discussion on yips prevention and coping methods for high school baseball players is imperative.

• Journal of Information Technology and Architecture
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• v.11 no.1
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• pp.75-80
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• 2014

At the time the interest and love of the Korean professional baseball is increasing, the need for effective recruiting method rising. Recruiting existing methods were scheme based on expert evaluation, to obtain the players of each team. However, the existing method does not reflect only objective rating but also subjective way of school tie and delays are effect. Therefore the conventional method could not be the efficient. Therefore this paper analyze Korea baseball player's efficiency based on entire team and each team by using DEA (Data Envelopment Analysis) method, and use this efficiency to discuss effective way of recruiting players. Finally, the validity of experiment is confirmed by the matters of actual sell of players who are scouted by experiment.

• Journal of the Korean Applied Science and Technology
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• v.39 no.1
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• pp.96-107
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• 2022

The purpose of this study was to demonstrate the effects of 8weeks Kettlebell training on the FMS and Balance in Middle school baseball player. Fourteen middle school baseball players were randomly assigned to a kettlebell group (n=8) and a control group (n=6), and kettlebell training was applied twice a week for 60 minutes. And the FMS, Y-balance test and static and dynamic balance test using smart shoes were tested before and after kettlebell training. Repeated two-way ANOVA measures was performed both before and after the exercise to verify the effect of kettlebell training. Also, if there was an interaction between time and group, a paired sample t-test was performed for each group. As a results of the study, FMS score showed a significant difference in IL (Inline Lunge) and TS(Total Score), and there was no significant difference in other variables of FMS. The YBT score showed a significant difference in all YBT variables except for the left AT. And the balance test using smart shoes, there was no significant interaction effect between group and period in all variables. In conclusion, it was found that the application of kettlebell training in middle school baseball players had an effects on the FMS and YBT scores related to functional movement and functional balance, but it did not affect the static/dynamic balance test using smart shoes evaluated by the foot pressure method. It seems that the results of this study can be provided as basic data necessary for planning a training program for middle school baseball players.

• Proceedings of the Korea Information Processing Society Conference
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• 2014.11a
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• pp.721-722
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• 2014

야구는 흔히 기록의 스포츠라는 별명으로 많이 불린다. 그만큼 야구라는 운동이 갖는 기록의 종류는 무척 다양하고 또한 기록의 활용 가능성 역시 무궁무진하다. 이러한 별명에 걸맞게 미국에서는 야구에 대한 다양하고 방대한 정보를 수집하고 활용하고 있다. 그러나 한국 프로야구에 대한 정보의 수집과 활용은 아직까지 크게 부각되지 못하는 것이 현실이다. 랜덤 포레스트 기법을 이용하여 경기의 승부를 예측함으로써 한국 프로야구 데이터의 수집과 활용을 증대 시키는 효과를 기대 해 본다. 본 논문에서는 2014년 한국 프로야구의 승부 예측을 주제로 어떠한 누적 스포츠 데이터집단이 가장 유효한지를 실험 하였다. 승부 예측을 하기위해 사용된 누적 스포츠 데이터는 2014년 선수와 팀 기록, 2013부터 2014년까지의 선수와 팀 기록, 2012년부터 2014년까지의 선수와 팀 기록이다. 이들 세 그룹의 데이터를 이용하여 이분데이터 모형에 랜덤 포레스트 기법을 사용한 승부예측 알고리즘에 적용 시킨 후 어느 그룹의 데이터가 가장 실제 2014 한국 프로야구 정기결과와 맞을 확률이 높음을 구하여 가장 유용한 데이터 그룹이 어떤 그룹인지 연구 하였다.