• The Korean Journal of Physiology and Pharmacology
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• 제18권5호
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• pp.419-423
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• 2014

The purpose of the present study was to investigate cardiac damage biomarkers after a triathlon race in elite and non-elite athlete groups. Fifteen healthy men participated in the study. Based on performance, they were divided into elite athlete group (EG: n＝7) and non-elite athlete group (NEG: n＝8). Participants' blood samples were obtained during four periods: before, immediately, 2 hours and 7 days after finishing the race. creatine kinase (CK), creatine kinase-myoglobin (CK-MB), myoglobin, and lactate dehydrogenase (LDH) were significantly increased in both groups immediately after, and 2 hours after finishing the race (p<.05). CK, CK-MB, and myoglobin were completely recovered after 7 days (p<.05). Hematocrit (Hct) was significantly decreased in both groups (p<.05) 7 days after the race. LDH was significantly decreased in the EG (p<.05) only 7 days after the race. Homoglobin (Hb) was significantly decreased in the NEG (p<.05) only 2 hours after the race. Although cardiac troponin T (cTnT) was significantly increased in the EG but not in the NEG 2hours after the race (p<.05), there was no group-by-time interaction. cTnT was completely recovered in both groups 7 days after the race. In conclusion, cardiac damage occurs during a triathlon race and, is greater in elite than in non-elite. However, all cardiac damage markers return to normal range within 1 week.

• 대한인간공학회:학술대회논문집
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• 대한인간공학회 1992년도 추계학술대회논문집
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• pp.9-17
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• 1992

To study on the guideline for high altitude training, physiological changes are considered. The recommanded is to deeply understand for altitude physiology, not to exposure at high for elite athlete, to climb progressively and to train at 3000 .approx. 5300m. Steady altitude exposures should be limited to periods of 2 to 4 weeks. During the training, the intermittent sea level or extremely high trips should be scheduled. It is expected that this study would be contributed to sport trainer, athlete and climber.

• 운동영양학회지
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• 제13권3호
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• pp.185-192
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• 2009

The aim of this study was to examine the use of such dietary supplementation practices, opinions, taking period for dietary supplement, and among elite Judoists varying in age and gender. Subjects were recruited from Korea National Team Judoists in elite athlete training centers (Taenuing in Seoul, Korea and surrounding area), a total of 223 elite Judoists (2003y n=34, 2005y n=41, 2006y n=101, 2007y n=30, 2008y n=17). Data were collected from personal interviews with Judoists who participated at the Olympic games, Asian game and World Championship game since 2003-2008. Elite Judoists representing mean age of 2003y (men: 23.5±2.7, women: 22.6±2.4), 2005y (men: 23.4±2.6, women: 22.5±2.3), 2006y (men: 20.3±3.2, women: 21.9±2.4), 2007y (men: 25.3±2.6, women: 22.5±2.8) and 2008y (men: 23.9±3.9) completed a validated questionnaire assessing dietary supplementation practices and opinions. Older Judoists were significantly more likely to report greater dietary supplementation usage; to be advised by oneself; health food store and pharmacy retailers; to decrease taking period days per week and past 6 month. Relative to gender, significant differences were observed for the types of dietary supplementation reported; supplementation practice trend; reasons for dietary supplementation use.

• International Journal of Internet, Broadcasting and Communication
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• 제15권1호
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• pp.281-289
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• 2023

The purpose of this study was to objectively explore and discuss the effect of trainer's communication style on rehabilitation ability and rehabilitation satisfaction of elite athletes. we observed the relationship between rehabilitation trainers and injured athletes and found that communication between them plays an important role. In this study, we criticized that most of the studies related to rehabilitation were conducted from the point of view of natural science. The results of this study emphasized that rehabilitation-related research should broadly accept social science positions such as business administration. The main research findings are as follows. As a result of analyzing the relationship between trainer's communication style and rehabilitation ability, first, the trainer's cooperative and professional communication style affects emotional factors of injured players. Second, the trainer's cooperative and controlled communication style affects the cognitive factors of injured players. Third, the trainer's cooperative and professional communication style affects the behavioral factors of injured players. Fourth, the trainer's cooperative and professional communication style affects the rehabilitation satisfaction of injured players. Based on these results, this study was conducted to validate the necessity of discussing the trainer's communication style preference according to the individual background such as the injured player's gender, personality, and injury level, and the classification and composition of communication styles that match Korean culture and sentiment. As suggestions for follow-up research, active sharing of problems with adjacent disciplines such as sports sociology, sports education, and sports marketing, and parallel qualitative research centered on individual cases were suggested

• 대한정형외과스포츠의학회지
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• 제10권2호
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• pp.86-93
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• 2011

목적: 가장 뛰어난 수행 능력을 가진 국가대표 엘리트 태권도 선수의 국제 경기 중의 손상에 대하여 분석하고자 하였다. 대상 및 방법: 2011 경주 세계 선수권 대회에 참가한 146개국 국가대표 950명이 전체 1,063 경기 중에 손상을 받은 52명을 대상으로 하였으며 성별, 연령별, 체급별 경기 손상률과 손상 부위별 손상 발생률과 손상 유형, 그리고 손상 양상에 따른 손상 부위 등에 대하여 분석하였다. 결과: 총 950명, 전체 1,063 경기에서 52명이 손상을 입어 5.47%가 경기 손상을 받았고, 1,000 경기 노출당(per 1,000 athlete-exposures, /1,000 A-E) 손상률은 24.46/1,000 A-E이었다. 여자의 손상률이 남자보다 높았지만 통계학적으로 유의한 차이는 없었다(p=0.512). 연령별로는 30세 이상에서 손상률이 참가자 100명당 17.39%로 가장 높았으며, 체급별로는 남자에서 87kg 이상에서 손상률이 9.23%로 가장 높았고, 여자에서 67~73kg 체급의 손상률이 18.18%로 가장 높았으나 통계학적 유의성은 없었다(p=0.838). 손상 부위는 전체적으로는 하지의 손상률이 13.17/1,000 A-E로 상지나 두경부, 체간 부위보다 높았지만, 손상 부위별로는 수부 손상의 손상률이 5.17/1,000 A-E로 가장 높았고 슬관절 부위가 4.70/1,000 A-E로 다음이었다(p=0.714). 손상 유형으로는 관절 염좌의 손상률이 10.81/1,000 A-E로 가장 높았으며, 다음 순위로 남자에서는 골절의 손상률이 5.40/1,000 A-E로 높았으나 여자에서는 좌상이 9.63/1,000 A-E로 높았다(p=0.033). 중증 손상인 골절은 8예 중 4예에서 수부에서 발생하였다. 결론: 2011 경주 세계 선수권 대회에 참가한 엘리트 태권도 선수의 국제 경기 중 손상률은 5.47%, 24.46/1,000 A-E였다. 전체적으로는 슬관절과 족관절의 염좌가 가장 많은 손상을 차지하였지만 중증 손상인 골절은 수부에서 가장 많이 발생하였다.

• 대한정형도수물리치료학회지
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• 제27권3호
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• pp.1-15
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• 2021

Objective: The purpose of this study was to examine the differences in joint position sense (JPS), force sense (FS), and performance level of the upper extremities according to the injury and pain experiences of Korean elite archers. Methods: A total of 15 subjects were briefed about the purpose of this study and agreed to participate voluntarily. JPS was evaluated using the laser-point attached to the wrist while aiming at the target. The difference when relocating while aiming was used as JPS factor. FS was evaluated using load cell through reproduces same muscle strength. Fear-Avoidance Beliefs Questionnaire (FABQ) was used to evaluate psychosocial factors, Kerlan-Jobe Orthopedic Clinic overhead athlete scores (KJOC) and numerical rating scale (NRS) was used to evaluate pain. and performance was evaluated by tournament match score. Results: There is a strong correlation between the current pain and KJOC. Moreover, moderate correlation between KJOC and FABQ also current pain and both upper trapezius and lower trapezius in elite archers. The mean (SD) between groups based on current pain display relatively large margin in force sense than without pain group. The result presents that there is a significant difference in performance and pain. There is a significant difference in the force sense of the upper and lower trapezius and pain. Conclusions: Result present there is a significant difference in functional level in the average comparison between groups according to the presence of absence of current pain. There is a significant difference in the force sense of the upper trapezius as well as lower trapezius and without pain group present a relatively low joint position sense error compared to the groups.

• 한국운동역학회지
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• 제23권1호
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• pp.19-24
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• 2013

The aim of the study was a quantitative analysis of elite athlete's $540^{\circ}$ Dwihuryeochagi and effects of ground movements to the jumping height and kicking velocity. Eleven elite players(Taekwondo demonstration team) participated in this study. In order to get the kinetic and kinematic variables, ten Vicon cameras and a force plate were used. Foot segment velocity(FSV), vertical ground reaction force(GRF), impulse, ground time(GT) in phase 1, trunk angular velocity(TAV), vertical center of gravity(COG), flight time(FT) in phase 2 and kicking leg segment velocity(KSV) in phase 3 were measured and analyzed. Results indicated that there were similar patterns of variables among phases between subjects. Non-significant correlation(r=.145) between flight time(FT) and impulse was found. Also non-significant correlation(r=.119) between center of gravity(COG) and impulse was found. In conclusions, there were similar strategies in phase 1, phase 2, and phase 3 between subjects.

• Journal of the Korean Data and Information Science Society
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• 제25권3호
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• pp.567-578
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• 2014

이 연구는 Rasch 모형을 적용하여 우리나라 엘리트 선수의 도핑 사고성향 분석을 위한 PEAS의 타당도를 검증하는데 목적이 있다. PEAS (performance enhancement attitude scale)는 Petroczi (2006)이 제시한 선수들의 도핑 (doping)에 대한 사고방식과 성향을 측정하는 척도로 17문항 6점 척도로 구성되어 있다. 국가대표 엘리트 선수 438명을 대상으로 측정하였고, Rasch 모형을 적용하여 타당도를 분석하였다. 우선 Rasch 모형의 기본가정인 일차원성을 검증하기 위해 SPSS 프로그램을 적용하여 주성분분석을 실시하였다. 문항의 적합도 검증과 측정척도 범주의 타당도, 그리고 성별에 따른 차별기능문항을 추출하기 위해 Winsteps 프로그램을 이용하였다. 분석에 모든 유의수준은 .05로 설정하였다. 자료분석 결과는 다음과 같다. 첫째, 총 17문항으로 구성된 PEAS는 일차원성을 만족하는 것으로 나타났다. 둘째, 응답범주 수의 타당도는 6점척도보다 5점척도가 더 적합한 것으로 나타났다. 셋째, 문항의 적합도는 17문항 중 7문항 (문항1, 문항9, 문항10, 문항12, 문항13, 문항14, 문항17)이 통계적으로 적합하지 못한 것으로 나타났다. 넷째, 성별에 따른 차별기능문항 분석 결과 3문항 (문항3, 문항12, 문항13)이 추출되었다. 따라서 이 연구에서 우리나라 엘리트 선수의 도핑 사고성향분석을 위한 PEAS는 9문항 5점척도가 타당한 것으로 구명되었다.

• 디지털융복합연구
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• 제16권11호
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• pp.599-604
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• 2018

본 연구는 다양한 유형의 운동수행능력 향상에 대한 태도 척도 (Performance Enhancement Attitude Scale, PEAS)에 대해 확인적 요인분석 (confirmatory factor analysis)을 사용하여 요인구조 (factor structure)를 확인함으로써, 한국 엘리트 선수들에게 적합한 한국형 PEAS를 제공하고자 하였다. 355명의 핸드볼 선수를 대상으로 17문항의 PEAS를 자기기입식으로 조사하여 자료를 수집하였고, 17문항과 11문항, 9문항, 8문항 및 6문항에 대해 각각 확인적 요인분석을 시행하였다. 그 결과, 6문항의 PEAS가 한국 엘리트 운동선수들에게 적합한 것으로 확인되었고, 특히 청소년 선수에 비해 성인 선수에게 더 좋은 적합도를 보였다. 이러한 결과는 성인 선수의 도핑에 대한 태도는 6문항의 PEAS를 사용하여 더 정확하게 측정할 수 있을 것을 의미하고, 청소년 선수의 도핑에 대한 태도를 확인하기 위해서는 적합한 문항으로 구성된 설문지가 개발되어야 할 것이다.

• 디지털융복합연구
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• 제17권5호
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• pp.385-390
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• 2019

본 연구는 도핑 (doping)에 대한 태도를 정량적으로 평가하기 위해 개발된 Performance Enhancement Attitude Scale (PEAS)의 다양한 버전에 대해 모형적합도 (model fit)를 확인함으로써 대한민국 엘리트선수에게 적합한 한국형 PEAS에 대한 정보를 제공하고자 하였다. 180명의 엘리트 육상선수를 대상으로 잘 훈련된 2명의 조사자 감독하에 17문항 PEAS를 자가기입식으로 응답하는 방법으로 자료를 수집하였고, 이를 활용하여 11문항과 9문항, 8문항 및 6문항으로 구분하여 모형적합도를 확인하였다. 그 결과, 8문항 PEAS가 대한민국 엘리트 육상선수에게 좋은 적합도를 보였고, 6문항 PEAS는 청소년선수에게 좋은 적합도를 보였으나 통계적으로 유의하게 나타나지는 않았다. 이러한 결과는 8문항 PEAS를 사용하는 것이 성인 및 청소년 육상선수의 도핑에 대한 태도를 측정하는 데에 더 타당하다는 것을 의미하고, 추후 이를 활용하여 도핑 행위에 영향을 미치는 심리사회학적 요인을 확인한다면 반도핑 전략 개발에 있어서 정확한 정보를 제공할 수 있을 것이다.