• 한국운동역학회지
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• 제29권4호
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• pp.255-261
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• 2019

Objective: The purpose of this study was to investigate differences of shock attenuation strategies between double-leg and single-leg landing on sagittal plane using statistical parametric mapping. Method: Nine healthy female professional soccer players (age: 24.0±2.5 yrs, height: 164.9±3.3 cm, weight: 55.7±6.6 kg, career: 11.2±1.4 yrs) were participated in this study. The subjects performed 10 times of double-leg and single-leg landing from the box of 30 cm height onto force plates respectively. The ground reaction force, angle, moment, angular velocity, and power of the ankle, knee, and hip joint on sagittal plane was calculated from initial contact to maximum knee flexion during landing phase. Statistical parametric mapping was used to compare the biomechanical variables of double-leg and single-leg landing of the dominant leg throughout the landing phase. Each mean difference of variables was analyzed using a paired t-test and alpha level was set to 0.05. Results: For the biomechanical variables, significantly increased vertical ground reaction force, plantarflexion moment of the ankle joint, negative ankle joint power and extension moment of the hip joint were found in single-leg landing compared to double-leg landing (p<.05). In addition, the flexion angle and angular velocity of the knee and hip joint in double-leg landing were observed significantly greater than single-leg landing, respectively (p<.05). Conclusion: These findings suggested that negative joint power and plantarflexion moment of the ankle joint can contribute to shock absorption during single-leg landing and may be the factors for preventing the musculoskeletal injuries of the lower extremity by an external force.

• 한국컴퓨터정보학회논문지
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• 제27권3호
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• pp.239-249
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• 2022

이 연구는 국내 및 해외의 스쿠버다이빙리조트 활성화 요인을 도출하고 비교 분석하는데 목적이 있다. 국내와 해외 스쿠버다이빙리조트의 경영대표, 교육팀장 등 운영에 관련된 전문가 30명을 대상으로 3차례에 델파이 조사를 진행하였다. 국내와 해외의 활성화 요인을 비교 분석한 결과 공공다이빙 장소의 편의시설 확충, 다이버들을 위한 안전시설 및 의료시설 설치, AED, 산소 등 응급처치 시스템 구축, 다이빙 보트 내 입·출수 리프트, 화장실 등 편의시설 필요, 다이빙 보트 스크루 안전망 설치, 지역 보트 운항 가이드 라인, 스쿠버다이빙 정규 코스 교육 프로그램, 전문 스쿠버다이빙 강사 및 가이드 고용, 다양한 SNS를 이용한 소통 및 홍보, 다이버의 입소문을 통한 홍보, 지역 다이빙 리조트 연합회 활동, 한인 다이빙 연합회 활동, 지역 어촌계와의 소통 및 상생 정책, 지역 관광산업과 연계정책이 공통적인 중요 활성화 요인으로 나타났다.

• Nutrition Research and Practice
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• 제17권4호
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• pp.762-779
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• 2023

BACKGROUND/OBJECTIVES: Mediterranean diet is an environmentally friendly and healthy diet model. The diet offers many vegetables, fruits, nuts, and olive oil to consumers. In addition, it provides moderate amounts of fish and chicken, smaller quantities of dairy products, red meat, and processed meat. The Mediterranean diet has a high anti-inflammatory and antioxidant content, and it causes many physiological changes that can provide a physical performance advantage. This study examined the effects of a 15-day menu, which was planned using foods with a low acid load within the Mediterranean diet rules, on the exercise performance, lactate elimination, anthropometric measurements, and body composition. SUBJECTS/METHODS: Fifteen professional male athletes between the ages of 13 and 18, who were engaged in ski running, were included in the experimental study. Dietary intervention was applied for 15 days. The athlete performances were evaluated by applying the vertical jump test, hand grip strength, 20 meters shuttle run test, and Borg fatigue scale. After the shuttle run test (every 3 min for 30 min), blood was drawn from the finger, and the lactate elimination time was calculated. Performance and lactate measurements, body analysis, and anthropometric measurements were taken before and after dietary intervention. RESULTS: The vertical jump height and hand grip strength increased after the intervention (P < 0.05). The test duration, total distance, the number of shuttles, and maximum oxygen consumption parameters of the shuttle run test increased (P < 0.05). After the intervention, the athletes' perceived fatigue scores decreased in several stages of the shuttle run test (P < 0.05). The lactate elimination time and athlete's body composition were similar in repeated measurements (P > 0.05). In the last measurements, the upper middle arm circumference decreased while the height of the athletes increased (P < 0.05). CONCLUSIONS: These results show that the Mediterranean diet is a safe and feasible dietary approach for aerobic performance and strength increase.

• The Journal of Korean Physical Therapy
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• 제14권4호
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• pp.172-182
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• 2002

Objectives: We did research in the cause of the Pitchers' injury and their recovery process to make a detailed injury list for the purpose of finding the cause of the Korean professional pitchers' injury and its classification. We drew the conclusion through the results as following. Methods: We posed a question to the 80 pitchers playing in the first team of the eight Korean professional baseball team and analyzed the 62 pieces of question paper except the paper having a mistake. We used SAS/PC statistical package in analyzing the data. Results: In the frequency of the pitchers' shoulder injury in the last three years, the injured of all the players were 61.3$\%$ and the injury free players were 28.7$\%$. The cause of the injury was 45.2$\%$ wrong pitching motion, which was the highest value. For the shape of a pain when injured, the reverberation ache feeling when he is hit in the weight commanded an absolute majority as 19.4$\%$. Those who had muscular pain were 17.7$\%$, which was felt mostly at the pitching motion. The most trouble name of the injured shoulder was bicepstendinitis as 16.1$\%$ while the injury of shoulder joint was the lowest as 1.6$\%$. As the most widely used treatment, 25.8 percent of all the players had taken an electronical thraphy after injury. 14.5 percent of the players who had an injury to the shoulder told that they have an operation and 85 percent of them didn't. As a sort of the operation, a repairing of labrum was 44.4 percent, which is the highest value and the 77.8 percent pitchers are performing a normal pitching through rehabilitation after the operation and 22.2 percent of them are undergoing rehabilitation training. Conclusion: The research have shown that the main cause of the injury, concerning the Korean professional pitchers throwing lots of ball in both matches and practices, is overuse syndrome, bad mechanism, muscle weakness and instability of balance. I think that the role of trainer, physical therapy, and team physician taking charge of the players' injury must learn physical test method by heart exactly to check up the state of the injury definitely at the initial phase. Moreover, when the cause of the injury part after a close examination is discovered, the scientific and good surgery is essential to the rehabilitation success and making a classification of shoulder instability is useful to make a operation plan as well as the players' rehabilitation, treatment.

• 한국엔터테인먼트산업학회논문지
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• 제13권7호
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• pp.261-272
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• 2019

본 연구는 프로야구 관중의 구단과 자아이미지 일치성이 구단 충성도에 미치는 영향에서 정서적 유대감의 조절효과를 규명하여 구단과 관중의 정서적 유대감의 효과성을 제고하고, 구단의 브랜드 마케팅 전략 수립에 시사점을 제시하는 데 그 목적이 있다. 이를 위해 프로야구 관람객 500명을 대상으로 설문조사를 수행하였고, 450부의 수집된 자료를 기초로 SPSS 21.0을 이용하여 상관관계분석, 단계적 회귀분석 및 위계적 회귀분석을 실시한 결과는 다음과 같다. 첫째, 프로야구 관중과 구단의 자아이미지 중 현실적 자아이미지 요인이 구단 충성도에 유의미한 영향을 주는 것으로 나타났다. 둘째, 현실적 자아이미지 일치성이 구단 충성도에 미치는 영향에서 현실적 자아이미지 일치성이 조절되는 것으로 확인되었다. 이러한 결과는 정서적 유대감 형성이 이상적 자아이미지 일치성에는 영향력이 없고, 현재 구단이 보여주고 있는 현실적 자아이미지와 관련이 있음을 실증하였기 때문에 이러한 점들을 고려하여 보다 이러한 효과가 부각될 수 있는 마케팅 전략 수립이 필요할 것으로 판단된다.

• 대한한의학원전학회지
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• 제22권2호
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• pp.263-273
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• 2009

Taegeuk is the source and union of the two primary aspects of the cosmos, Eum(陰, Yin) and Yang(陽). The Neo-Confucian philosophers of Chinese Song(宋) dynasty associated Taegeuk with the supreme rational principle of the universe. Taegeuk is a powerful blend of self-discipline, self-defense and healing. It is an art which has grown over the millennia to include hundreds of forms and variations, and can easily take a lifetime to master. Taegeukgwon based on the Taoist philosophies of Eum(陰, Yin) and Yang(陽) is an ancient Eastern form of exercises, characterized by slow reversing movements. There is strong research evidence validating Taegeuk as a safe form of exercise having potential for health promotion and rehabilitation. Today, Taegeukgwon has spread worldwide. The Internal Training of Taegeuk is one of the exercises for regiment. As exercise, Taegeukgwon is designed to provide relaxation in the process of body-conditioning exercise and is drawn from the principles of Taegeuk, notably including the harmonizing of the Eum-yang(陰陽, Yin-yang), respectively the passive and the active principles. It employs flowing, rhythmic, deliberate movements, with carefully individually prescribed stances and positions. In practice, two masters teach the system exactly alike. As a mode of attack and defense, Taegeukgwon resembles Kungfu and is properly considered a martial art. It may be used with or without weapons. Freehand exercise to promote health was practiced in Korea. This training proved to have effect on hypertension, enervation, impotence, premature ejaculation, seminal emission, chronic gastrointestinal diseases, and arteriosclerosis. There have been many schools of Taegeukgwon. Depending on school and master, the number of prescribed exercise forms varies from 24 to 108 or more. The objective of this paper is to reconsider Taegeukgwon and its effect on the body and mind-conditioning in Hwangjenaegyeong(黃帝內經).

• 약학회지
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• 제60권3호
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• pp.154-162
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• 2016

Extracurricular activities are voluntary participations that students engage in outside of classrooms. This study aimed to determine Korean pharmacy students' degree of involvement in extracurricular activities, motivations behind participation, and influences from those engagements. The study was performed as a voluntary online survey to pharmacy students in four pharmacy schools in Korea and a total of 188 students participated. Sixty-one percent and 34% of students reported that they were involved in at least one extracurricular activities in-school, and out-of-school, respectively. Areas with most involvements were arts/music/sports (73%), followed by volunteer activities (31%). Thirty two percent responded that they have been involved in research internships, followed by 15% and 10% in pharmaceutical company and community pharmacy internships, respectively. For motivations behind involvement, students indicated that their involvement was for hobby (72%) and networking (38%). In conclusion, while Korean pharmacy students actively engage in extracurricular activities, the range of activities was limited in scope, and most students were involved in extracurricular activities as hobbies rather than for career exploration. Opportunities for student involvement in various pharmacy professional organizations and internships in the pharmacy work setting would provide valuable experiences for pharmacy students in their professional development as a pharmacist.

• 문화기술의 융합
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• 제6권1호
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• pp.179-183
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• 2020

Seligman은 미국 프로야구와 프로농구 선수들을 대상으로 실시한 연구결과를 근거로 낙관적인 운동선수가 승리한다고 주장한다(최호영 역, 2008). 이에 본 연구는 낙관성으로 배드민턴 청소년 대표선수들의 경기력을 예측할 수 있는지 알아보기 위하여 수행되었다. 고등학생 대표 60명을 경기력 상, 하 두 집단으로 구분하여 그들의 낙관성에 차이가 있는가를 알아보았다. 검사도구로는 Scheier, Carver 및 Bridges(1994)가 개발하고 신현숙(2005)이 번안한 삶의 지향성 검사 개정판(LOT-R : Revised Life Orientation Test)을 사용하였고 빈도분석, 신뢰도 분석, 독립 t검증을 실시하여 자료를 분석하였다. 그 결과, 경기력 상집단이 하집단에 비해서 낙관성이 통계적으로 유의미하게 높은 것으로 나타났다. 따라서 경기력을 향상시키기 위해서는 체력훈련, 기술연습과 동시에 낙관성을 향상시킬 수 있는 심리기술훈련이 필요하겠다.

• Clinics in Shoulder and Elbow
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• 제19권1호
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• pp.15-19
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• 2016

Background: To investigate how many rookie pitchers suffered from injuries while playing in the amateur league without guidelines for prevention of excessive pitching, we analyzed their amateur pitching patterns based on the pitch count, use of breaking balls, and pitches during winter camp. Methods: Forty-one rookie pitchers who graduated from high school or university in 2013 and joined professional baseball teams. Participants were interviewed by a trainer using our questionnaire. Injury inclusion criteria were 1) history of shoulder surgery, 2) history of elbow surgery, 3) shoulder pain requiring treatment, and 4) elbow pain requiring treatment. Results: Mean number of pitches per game and warm-up pitches for practice was 84.5 pitches (range, 15 to 130 pitches) and 16.4 pitches (range, 2 to 210 pitches), respectively. Mean number of pitches during the last year was 906.9 (range, 80 to 2,000). Mean number of maximal pitches was 127 pitches (range, 50 to 210 pitches). Fourteen pitchers had pitched over 150 pitches. Twenty-seven pitchers (65.9%) had pitched in spite of enduring pain. During winter training (mean 1.8 months), mean number of pitches per day was 162.5 pitches, and 20 pitchers (48.8%) had practiced pitching excessively despite the cold weather. Twenty-six rookies (63.4%) had shoulder pain or history of shoulder surgery, and 31 pitchers (75.6%) had elbow pain or history of elbow surgery. Only four participants (9.8%) did not have pain and history of surgery. Conclusions: For young baseball pitchers, guidelines for prevention of excessive pitching and for regulating the winter training program may be needed.

• 한국컴퓨터정보학회논문지
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• 제26권8호
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• pp.31-37
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• 2021

본 연구에서는 CNN(Convolution Neural Network) 모델을 이용하여 야구 경기 영상에서 투구나 스윙과 같은 특정 영상이 출현하는 장면을 자동으로 분류하여 효과적으로 검색하는 방법을 제안한다. 또한, 특정 동작의 분류 결과와 경기 기록을 연계한 영상 장면 검색시스템을 제안한다. 제안 시스템의 효율성을 검정하기 위하여 2018년부터 2019년까지 진행된 한국프로야구 경기 영상을 대상으로 특정 장면별로 분류하는 실험을 진행하였다. 야구 경기 영상에서 투구 장면을 분류하는 실험에서는 경기별로 약 90%의 정확도를 보였다. 그리고 경기 영상 내에 포함된 스코어보드를 추출하여 경기 기록과 연계하는 영상 장면 검색 실험에서는 경기별로 약 80% 정도의 정확도를 보였다. 본 연구 결과는 한국프로야구 경기에서 과거 경기 영상을 체계적으로 분석하여 경기력 향상을 위한 전략 수립을 위하여 효과적으로 사용할 수 있으리라 기대한다.