관동맥풍선시술중 혈전동반 병변에 대한 구조치료(Rescue Utilization)로서의 Abciximab(ReoPro^(�)의 효과

두영철,채경수,최종형,허필석,송관욱,홍경순,박대균,한규록,오동진,유규형,임종윤,고영박,이광학,이영 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.12

Mouthguard use in Korean Taekwondo athletes - awareness and attitude

Sea-Joong Kim,Gyu-Tae Kim,Deok-Won Lee,Chong-Kwan Heo,Jung-Woo Lee 대한치과보철학회 2013 The Journal of Advanced Prosthodontics Vol.5 No.2

PURPOSE A survey was performed to identify the level of mouthguard use, awareness, wearability issues and attitude toward mouthguard among elite Korean Taewondo athletes. MATERIALS AND METHODS Survey questionnaires were given to 152 athletes participating in the Korea National Taekwondo team selection event for the 2010 Guangzhou Asian Games. Questionnaires consisted of three sections, mouthguard awareness, reasons for not wearing mouthguard and the last section to test the level of acceptance on current mouthguard and when the identified problems were resolved. For analyzing difference among response, χ2 test was used and significant level (α) was set up as 0.05. RESULTS Responses in each of items showed significant difference (P<.001). Majority of response regarding each question: Majority of respondents believed that mouthguard were effective in preventing injuries (36.4%) but the result suggested that the provision of information on mouthguard to athletes was inadequate (44.0%) and the result showed that respondents were not greatly interested or concerned in relation to the mandatory mouthguard rule (31.6%). Although the responses on the level of comfort and wearability of mouthguard were negative (34.8%), athletes were positively willing to wear mouthguard if the problems rectified (51.2%). CONCLUSION Considering the high level of willingness to wear mouthguard if the problems rectified, it is thought that together with efforts in providing more mouthguard information, the work of sports dentistry to research and improve mouthguard will be invaluable in promoting mouthguard to more athletes.

스포츠 전략의 선택:어떻게 선택해야 하는가?

허종관(Heo, Chong-Kwan),김세중(Kim, Sea-Joong) 한국체육과학회 2015 한국체육과학회지 Vol.24 No.5

The purpose of this study were to introduce and practically make adapt statistical method for “how sports strategies were selected”. For this study, We introduced statistical method to select strategy suggested by Skinner(2011) and adapted it to some situation based on 2014~2015 season’s game results from KBL web-site. Through adapted results, we confirmed applicability and usefulness of statistical method suggested by him. In conclusion, statistical method suggested by him was able to adapt on situation of game opening part and late part of underdog. It appeared to be appropriate method for estimating ratio of optimization between two scoring strategies, also. Therefore, this statistical method will be able to adapt a personal match with differential scoring system, that is baseball, soccer, Taekwondo, Judo etc.. Moreover, it will be able to used to select tactics without differential scoring system. Also, optimization method of scoring strategies will make sufficient use of balanced distribution among using vary these strategies, and even be adapted on distribution of pass and attacking direction.

농구 경기력 분석에서의 비선형 다층모형의 적용

허종관(Heo, Chong-kwan),김세중(Kim, Sae-Joong) 한국체육과학회 2014 한국체육과학회지 Vol.23 No.4

The promary purpose of this study was to estimate relative abilities of each korean professional baketball team including opposing team or athletics thought appling hierachical nonlinear model. For performing this investigation, competition results for 2011-2012 season KBL were collected from KBL website. Bradley-Terry Model was used relative ability parameters in basketball teams and these was is estimated by linear model with explanatory variables such as competitive factors. Results follow as: 1. Relative abilities appeared to Dong-Bu>KGC>KT =MOVIS>Electronic land>Dong- Yang>SK>Samsung. 2. KGC, Dong-Bu, KCC, KT, MOVIS, Electronic land was shown significant difference in comparing the lowest team, Samsung. 3. In abilities predicted by explanatory variables, just 2point effected to relative abilities significantly.

Many Facet Rasch Model을 적용한 태권도 심판판정 분석

허종관(Heo Chong-Kwan),이기광(Lee Ki-Kwang),김세중(Kim Sae-Joong) 한국체육과학회 2011 한국체육과학회지 Vol.20 No.2

The purpose of this study was to analyze judge’s judgement in Taekwondo competition for offering a concrete data to solve a problem of Taekwondo judge’s decision. The subject of this study was selected of 40 judges and 1,399 athletes participating in the J National Taekwondo Meet held from January, 23, 2007 to January, 30, 2007. A many facets Rasch model to analyze the judge’s decision was defined 9 facets Rasch model including the judge’s severity according to an individual, gender, region and career and the athlete’s ability according to an individual, gender and region and the relative athlete’s ability according to an individual and region. Judges’ severity, consistency and objectivity according to an individual, gender, region and career were examined by the many facets model. Results were as follows: In judges’ decision according to an individual, judges’ severity appeared to be significant difference(p<.01). In judges’ decision according to gender, severity appeared to be not significant difference(p<.05). In judges’s decision according to region, severity appeared not to be significant difference(p<.05). In judges’ decision according to career, severity appeared not to be significant difference(p<.05). Judges by athletes interaction according to gender and region appeared not to influence athletes’ performance.

이변량 포아송 모형을 이용한 한국 프로농구 팀의 능력 모수 추정

허종관(Heo, Chong-Kwan),김세중(Kim, Sea-Joong),이우경(Lee, Woo-Kyung) 한국체육과학회 2016 한국체육과학회지 Vol.25 No.2

The purpose of this study were to test suitability of bivariate Poisson model for analyzing of record of Korean basketball league and estimate offensive abilities and defensive abilities of each team. For this purpose, we were collected record of Korean basketball league for 2013-2014, 2014-2015 season from KBL Web-page. And we adapted collected data to bivariate Poisson model. The results were follow as: 1. Distribution of 2scoring suited to adapt bivariate Poisson model. But distribution of 3scoring was not suitability. 2. The team possessing the best 2scoring offensive ability was MOVIS and The team possessing the best 2scoring defensive ability was DONGBU. Also, 2scoring offensive ability was relation with winning rate f or 2 season. 3. The team possessing the best 3scoring offensive ability was KCC and The team possessing the best defensive ability was MOVIS. But, 3scoring offensive ability was inverse relation with winning rate for 2season. Conclusively, bivariate Poisson model suited to 2scoring. And 2scoring offensive ability and was relation with winning rate for 2season but, 3scoring was inverse relation with winning rate for 2season.

짝비교 분석 방법에 의한 한국프로농구 팀의 경기력 분석

허종관(Heo, Chong-Kwan),김세중(Kim, Sea-Joong),김병주(Kim, Byoung-Joo) 한국체육과학회 2016 한국체육과학회지 Vol.25 No.3

The purpose of this study were to find out meaning, suitable, difference among models that applied some method of paired comparison analysis for estimating abilities of each of KBL teams. For this purpose, scoring records and match days in 2015~2016 season were collected from KBL Web-site. And it were analyzed by Bradley-Terry model, general linear model using difference of scoring between two teams and Dynamic Bradley-Terry model. Analyzed results were compared with real order of each team in 2015~2016 season. All data were analyzed by r-program x64(3.3.0). The results were follow as: 1. Abilities estimated by Bradley-Terry model correspond with real order of each team in 2015~2016. 2. It shown a little difference with real order of each team in 2015~2016 that abilities of scoring estimated by General linear model using difference of scoring between two teams. 3. Abilities estimated by Dynamic Bradley-Terry strongly correlated the real order of each team in 2015~2016. Conclusively, Paired comparison analysis can estimate consistent abilities regardless of opposite teams. In addition, general linear model using difference of scoring between two teams can use to consider to effectiveness of scoring and Dynamic Bradley-Terry model can apply on figure out the main factor about changing abilities.

로지스틱/마르코프 체인 모델을 이용한 한국프로농구 순위 예측

허종관(Heo, Chong-Kwan),김세중(Kim, Sea-Joong),도재현(Do, Jae-Hyun) 한국체육과학회 2016 한국체육과학회지 Vol.25 No.5

The purpose of this study were to find out meaning, suitable, difference among models that applied some method of paired comparison analysis for estimating abilities of each of KBL teams. For this purpose, scoring records and match days in 2015~2016 season were collected from KBL Web-site. And it were analyzed by Bradley-Terry model, general linear model using difference of scoring between two teams and Dynamic Bradley-Terry model. Analyzed results were compared with real order of each team in 2015~2016 season. All data were analyzed by r-program x64(3.3.0). Conclusively, Paired comparison analysis can estimate consistent abilities regardless of opposite teams. In addition, general linear model using difference of scoring between two teams can use to consider to effectiveness of scoring and Dynamic Bradley-Terry model can apply on figure out the main factor about changing abilities.

체육학 연구에서 비열등성·동등성 시험 적용을 위한 통계적 방법론의 이해와 실제

허종관(Heo, Chong-Kwan),김세중(Kim, Sae-Joung),도재현(Do, Jae-Hyun) 한국체육과학회 2017 한국체육과학회지 Vol.26 No.5

Studies in physical education take up study based on superiority, mostly. These problem was often made some results on a be signified nothing, for the reason being similar to the effect on existing treatment method, despite existing economic, timely and environmental profit. if some treatment is profit from economic, timely, environmental and etc point of view, researcher should be performed study on equivalence and nor-inferiority. Therefore, we introduced method and procedure testing equivalence and non-inferiority between two treatments., shine than, we explained on method of analyzing data and interpreting the results, applying virtual data. Finally, we expect that equivalence and non-inferiority test are used in various aspect of physical education.

체육·스포츠 분야에서 베이지안 분석 방법의 이해와 효용성

허종관(Heo, Chong-Kwan),정철규(Jung, Chul-Kyu) 한국체육과학회 2021 한국체육과학회지 Vol.30 No.6

The classical frequentist inference method has a disadvantage in that there is no prior distribution, and it can only make very limited inferences due to the viewpoint that the parameter of interest is regarded as an unknown and fixed constant. This disadvantage is that when the number of cases increases, it is easy to reject the null hypothesis, so that an insignificant variable is sometimes interpreted as an important variable. In addition, hypothesis testing centered on the null hypothesis makes it difficult to compare the two hypotheses by excluding the evaluation based on the relative hypothesis. This problem is a common phenomenon in the field of physical education, and it can be said that an appropriate reasoning method is needed for it. Recently, the Bayesian reasoning method is used to estimate parameters and test hypotheses in various academic fields as a method to solve the shortcomings of the classical frequentist reasoning method, but it can be said that the frequency of use in studies in the field of physical education is extremely insignificant. This problem is thought to have been largely due to the lack of understanding and ignorance of the Bayesian reasoning method in physical education research. Therefore, in this study, we intend to discuss the effectiveness of the Bayesian reasoning method by increasing the understanding of the Bayesian reasoning method of physical education researchers and further analyzing and comparing it by applying actual data.