진단용 초음파 Probe 및 Mode 변화에 따른 초음파 주사빈도가 콩나물 발아 과정에 미치는 영향

최관용,임현수,Choi, Kwanyong,Lim, Hyun Soo 대한의용생체공학회 2015 의공학회지 Vol.36 No.5

Long time ultrasound scan can cause a temperature rise in human tissue and affect the physical body. This is closely connected with patients' safety. So many researchers have been studied on this matter with animals such as mammals and experimental rat, because diagnostic ultrasound has been used many types of human organ to find disease. Therefore, this study is tested on bean sprouts to search how far the tissue temperature changes because of the excessive scanning consequence from ultrasound diagnosis and frequent number of ultrasonic scanning and how much affect their growth. The United States and several European countries have restrictions for number of scanning, while South Korea does not have any limitation for using ultrasound diagnosis. Comparison was that how different condition affect its' growing. The testing group is like many pregnancy moms to have 50 minutes in B-mode and color doppler mode by linear, convex and sector probe every day for a week and the other is to scan only once during the testing period. As a result, it was confirmed that there was a significant growing difference on frequent ultrasonic scanning group compared to normal one. So the final conclusion is that there needs to have a significant limitation of ultrasound scan time and a number of inspection when having for diagnostic ultrasound and recommendation like USA and a few European countries.

유도 지도자의 통제적 코칭행동이 훈련관여 및 지도자-선수 관계에 미치는 영향

최관용(Choi, Kwan-Yong),홍승한(Hong, Seung-Han) 한국체육과학회 2019 한국체육과학회지 Vol.28 No.1

The primary objectives of this study are 1) to clarify the impact of controlling coaching style of Judo coaches on training engagement and Coach-Athlete relationship and 2) to contribute to coaching development. To achieve the research aims, high school and college Judo players who are registered as athletes in the Korea Judo Association were selected as the participants for the current study. A total of 395 questionnaires were collected with the convenience sampling method. The questionnaire items that were used in the previous studies related to the impact of controlling coaching style of Judo coaches on training engagement and coach-athlete relationship were modified and complemented to meet the purpose of this study via the experts’ agreement. The researcher explained the purpose of the current study and the procedure to the Judo coaches at high schools and college and then visited each selected high school and college to distribute and collect the questionnaire. The results were analyzed employing exploratory factor analysis, reliability analysis, correlation analysis, and multiple regression analysis using the SPSS 21.0 version statistical program. As the results, the following conclusion was derived. First, the controlling coaching style of the Judo coaches has a significant effect on the training engagement. Secondly, the controlling coaching style of the Judo coaches has a significant effect on the Coach-Athlete relationship. Thirdly, the training engagement of judo Athletes has a significant effect on the Coach-Athlete relationship.

Convex Probe 소독 필요성 검증에 관한 연구

최관용(Kwan-Yong Choi),유세종(Se-jong Yoo),이준호(Jun-ho Lee),홍성용(Sung-Yong Hong) 한국방사선학회 2019 한국방사선학회 논문지 Vol.13 No.2

본 연구는 대전, 충청지역 초음파실 종사자를 대상으로 병원감염관리에 관한 설문 조사를 실시하여 분석 하였고, ATP를 이용하여 임상에서 사용되는 초음파 Probe의 오염도를 측정하였으며, 70% 알코올 이용하여 소독한 후 결과를 확인하였다. 기본적인 조사 대상자의 일반적인 특성 및 직종 별 대상자의 특성으로 나누어 학력, 직종, 초음파 전문자격증 보유 유무, 기관 내 감염 담당 부서 및 감염 교육의 여부를 분석하였다. 검사 후 젤 제거 여부 및 방법, Probe의 소독여부 및 변수 별 상관분석을 수행하여 초음파 Probe의 세균감 염에 관한 인식 및 세척 및 소독에 대한 수행 정도를 분석하였다. 검사 후 Probe 세척에 관하여 수건을 가장 많이 사용하였으며, Gel 용기는 3개월 이상 교환하지 않는 것으로 나타났다. 70% 알코올 소독 후 ATP 오염도는 1055.4±944.2에서 133.5±93.2으로 감소하였고 통계적으로 유의한 것으로 분석되었다.(ρ<0.01) 병원 균종은 CNS, Gram positive bacillus, Micrococcus species 검출되었다. 이를 해결하기 위해 시중에서 손쉽게 구할 수 있는 70% 알코올을 이용하여 소독을 실시하였으며 소독 후 병원균종은 검출되지 않았다. 연구 결과 초음파실을 관리하는 의료인 또는 의료기사 등은 감염관리에 대한 주기적인 교육과 감염예방에 대한 노력이 필요하다고 볼 수 있으며, 70% 알코올은 병원균 사멸에 효과적인 것으로 나타났다. 따라서 의료기 관은 적극적인 병원감염관리 교육을 실시하여 종사자들의 병원감염에 관한 인식을 개선하고, 환자 감염 예방에 기여해야 할 것이다. 또한 본 연구 결과를 적절히 활용한다면 초음파 Probe를 매개로 한 감염 예방에 도움이 될 것으로 사료된다. The study was conducted surveying ultrasound room workers on hospital infection awareness in Daejeon and Choong-chunng region. The contamination of ultrasonic probes used in clinical trials was measured using ATP, and the results were verified after using 70% alcohol sterilization. It was measured on the group’s general characteristics and the specific categories such as academic background, job type, having professional certificate and infection education. After the examination, the gel removal and method, disinfection status of the probe and variable correlation analysis were performed to analyze the recognition of the ultrasonic probe disinfection. After examination in ultrasound room, it was found that towels were used the most for cleaning, and the gel container was not replaced for more than three months. After 70% alcohol disinfection, ATP contamination was reduced from 1055.4±944.2 to 133.5±93.2 and the result was analyzed to be statistically significant.(ρ<0.01) The found bacteria were CNS, Gram positive bacillus, and Micrococcus specs. In order to solve this problem, 70% alcohol sterilization was applied and the bacteria were not detected after the treatment. The research shows that regular training on infection control and efforts to prevent infection are necessary, and that 70% alcohol is effective in disinfect the bacteria. Therefore, the medical institution should provide active hospital infection control education to improve the awareness of hospital infection among workers and contribute to the prevention of patient infection. It is also understood that proper use of the results of this study will help prevent infection by means of ultrasonic probes.

학생선수의 자기관리와 또래관계 및 학교생활만족의 관계

최관용(Choi, Kwan-Yong),김예지(Kim, Ye-Jee) 한국체육과학회 2017 한국체육과학회지 Vol.26 No.6

This study aims to search relationship between self-management, peer relationships and school life satisfaction of student-athletes. The questionnaire were used to achieve the study objective through the survey which was conducted targeting 300 high school student-athletes in Seoul and Gyeonggi. The conducted date were used through SPSS window version 18.0 program and frequency analysis, exploratory factor analysis, correlation analysis and standard multiple regression analysis were conducted and the conclusion is as followed. First, self-management has a statistically significant effect on the peer relationship. Especially, Metal-management, which is a sub-factor of self-management, has an effect on all sub-factors of peer relationship. Second, self-management has a statistically significant effect on school life adaptation. Mental-management, which is a sub-factor of self-management, has an effect on all sub-factors of school life satisfaction. Third, Peer relationship has a statistically significant effect on school life satisfaction. Self-confidence, which is a sub-factor of peer relationship, has an effect on all sub-factors of school life satisfaction. Through this conclusion, school sports leaders and teachers should do continuous counsel to observe their student-athletes’ school life and peer relationships.

Molecular Cloning and Expression of a Complementary DNA for Inositol 1,4,5- Trisphosphate 3- Kinas

최관용 ( Kwan Yong Choi ) 한국식물생명공학회 ( 구 한국식물조직배양학회 ) 1991 한국식물생명공학회 춘계학술연구발표회 Vol.1991 No.-

건강기능식품 표시 규제에 대한 소비자의 태도 유형 파악과 소비자 이해를 돕기 위한 기능성 내용 표시 방식 도출

최관용(Kwanyong Choi),조소민(So Min Jo),조선하(Seon Ha Jo),김지연(Ji Yeon Kim) 한국식품영양과학회 2022 한국식품영양과학회지 Vol.51 No.5

본 연구에서는 소비자들의 건강기능식품에 대한 태도와 제품 구매에 있어 중요하게 고려하는 요인, 기능성식품 정보에 대한 요구 내용을 분석하고, 소비자들이 건강기능식품 표시를 인지함에서 이해도와 신뢰도에 미치는 표시 방식을 파악하였다. 이미 수행된 사전 조사 및 정성조사에서는 건강기능식품 표시 사례를 제시하고, 소비자들이 이해하기 쉬운 표현이나 오인, 혼동 가능성이 있는 표현의 특징을 파악하였다. 이렇게 찾은 특징들에 대하여 보다 큰 규모에서 건강기능식품 소비자의 특성과 건강기능식품 표시 이해도를 확인하기 위해 정량조사 설문지를 작성하여 온라인 설문 조사를 수행하였다. 요인 분석을 통해 건강기능식품 표시에 대한 소비자 태도 유형과 건강기능식품 구입 시 긍정적인 태도를 보이게 하는 요인을 탐색하였다. 대한민국 건강기능식품 소비자의 두 가지 대표적 태도인 ‘일상소신형’, ‘적극탐색형’ 유형의 소비자들은 긍정적 요인 중 ‘섭취 시 얻는 보상’과 ‘건강기능식품의 신뢰도’ 요인은 강한 양의 상관 관계성을 보였다. 소비자들은 건강기능식품에 표시된 내용 이외에도 ‘어떠한 증상에 도움 되나’, ‘어떠한 질병 예방에 도움 되나’, ‘신체의 어떤 부위에 도움 되나’와 같은 내용에 높은 관심을 가졌다. 이러한 정보를 얻기 위해 인터넷 등을 통해 자발적으로 정보를 입수하지만 국가 공인 표시내용을 구별하지 못하고 있으며, 설령 국가에서 공인된 내용이 아님을 인지하고 있을지라도 탐색한 내용을 대체로 신뢰하였다. 오인 혼동을 야기할 수 있어 전문적 용어의 사용을 우려하는 정부 기관의 입장을 고려하여, 오인지 가능성을 줄이면서도 이해도와 신뢰도를 높일 수 있는 표시 방안을 도출하기 위해 ‘헬리코박터균 증식 억제’와 ‘혈중막 두께(IMT)’ 표시 사례를 비교한 결과, 동일하게 전문적인 용어를 사용하더라도 광고나 건강정보 관련 TV 프로그램 등에서 자주 접해볼 수 있었던 전문 용어는 이해도와 신뢰도를 모두 증가시켰다. 그 내용이 생소하거나 해당 분야의 전문가 외에는 사용하지 않는 용어를 포함시킬 경우 신뢰도에 강한 영향을 주지 못했고, 오히려 이해도를 감소시키는 결과를 보여주었다. 이러한 결과로부터 기능성 관련 정보를 과학적인 근거 내에서 자세하게 제공하는 것은 소비자가 필요로 하는 정보를 제품 내에서 획득함으로써 소비자의 알 권리를 충족시켜주고, 외부의 비공식적인 정보를 무분별하게 탐색하는 과정에서 발생할 수 있는 오·인지 가능성을 예방할 수 있으나, 이러한 효과는 소비자가 건강기능식품 표시에 대하여 기본적으로 가지고 있는 태도에 따라서 변화할 수 있다는 것을 고려해야 한다. 최종적으로 정부 기관에서 올바른 건강기능식품 표시내용을 규제하기 위해서는 소비자들의 문화적, 지식적 특성을 파악하는 연구가 추가로 진행되어야 하며, 이를 기반으로 상세하면서도 친숙한 표현을 허용하여 현 규정을 개선하려는 노력이 필요할 것이다. This study focused on finding more effective and compatible expressions for delivering information on health functional foods (HFFs) based on consumer patterns and understanding. Health claims which could influence the consumers’ decision to purchase HFFs are regulated by the government to protect consumers from misrepresentation. Focus group interviews were conducted to design the contents of an online quantitative survey. The survey investigated consumer characteristics; the factors influencing their positive attitude towards and understanding of the health claim labeling methods. HFF consumer characteristics, (Daily-life-consumption, Active-exploring-consumption, and Over-prudent-consumption) were defined in this study, and the factors (Trust, PostCOVID19, Benefit, Intake) which could influence a positive attitude to purchase HFFs were discovered by factor analysis. The most common characteristic of HFF consumers was “Daily-life-consumption”. “Benefit” was considered the most important factor in purchasing HFFs. “Daily-life-consumption” and “Benefit” showed the highest correlation among the categories. When comparing changes in consumer understanding and reliability while adding technical terms to the functional labeling such as “Decreasing Intima-Media Thickness” (PME88 melon) and “Suppressing Helicobacter pylori” (Spanish licorice), consumers showed a higher understanding of the term “Suppressing Helicobacter pylori”. However, they may have an inferior understanding of unfamiliar medical terminology like “Decreasing Intima-Media Thickness”. This study found that Korean HFF consumers, in general, are discerning enough to recognize health claims properly. The results suggest that efforts are needed to improve the regulations to encourage the use of detailed expressions in daily life, based on the consumers’ cultural background and common knowledge, rather than unfamiliar terms to consumer.

스페셜올림픽 통합스포츠 코치의 역할 탐색

최관용(Choi, Kwan-Yong),정창영(Jung, Chang-Young) 한국체육과학회 2017 한국체육과학회지 Vol.26 No.1

The purpose of this study is to analyze the role of unified sports coaches by using qualitative research methods, collecting data through open questionnaires and in-depth interviews, and using inductive content analysis. The structured conclusions are as follows. First, the understanding of unified sports is structured as professional understanding, understanding of members, and recognition of disability. Second, coaching technology is structured as professional skills, coaching style, characteristic recognition and management ability. Third, the effort for sympathy is structured as sympathy with the athlete, sympathy with the partner, and mutual sympathy. Fourth, the attitude of the coach is structured only as the general domain.

남녀 유도선수의 운동중단요인 비교 분석

최관용(Choi, Kwan-Youg),전승훈(Jeon, Seung-Hun),정현택(Jung, Hyun-Taek) 한국체육과학회 2016 한국체육과학회지 Vol.25 No.6

The purpose of this study was to explore male and female Judo athletes’ difference in their reasons for quitting their athletic career based on gender. Subjects of the study were 5 male and 4 female university student athletes who quit their Judo career and data were collected with qualitative study method. The result of analysis and interpretation on the data are as follows; First, male athletes’ reasons for quitting their athletic career were injury, unpredictable future with athletic career, difficulty in group life and goals other than athletic career. Second, female athletes’ reasons for quitting their athletic career were injury, awareness on their limitation in enhancing performance, loss of clear goals and maladaptation to the leaders’ training atmosphere. Third, as the result of comparison on gender difference in reasons for quitting their athletic career, common reason was injury and, as for uncommon reasons, male athletes’ reasons were unpredictable future with athletic career, difficulty in group life and goals other than athletic career while female athletes’ reasons were awareness on their limitation in enhancing performance, loss of clear goals and maladaptation to the leaders’ training atmosphere.

타겟형 스포츠 선수의 자기조절능력과 스포츠 집중력 및 인지된 경기력 간의 관계

최관용(Choi, Kwan-Yong),박지현(Park, Ji-Hyun) 한국체육과학회 2016 한국체육과학회지 Vol.25 No.4

The purpose of this study is to help out with coaching fit for characteristics of events by analyzing the relations among self-regulation ability, sports concentration and perceived athletic performance of target sports players. A survey was carried out 300 players of shooting, archery and curling, and the data of a total of 292 players were used for a final analysis. A frequency analysis, a confirmative f actor analysis, a reliability analysis, a correlation analysis and a standard multiple regression analysis were carried out on the collected using SPSS 19.0 and AMOS 20.0 programs, and the results were as follows: First, target sports players" self-regulation ability significantly affected sports concentration. Second, target sports players" self-regulation ability significantly affected perceived athletic performance. Third, target sports players" confidence among sports concentration significantly affect perceived athletic performance.

태권도 품새 선수가 인식한 지도자의 코칭언어와 지도자의 신뢰 및 지도효율성의 관계

최관용 ( Choi Kwan-yong ),김철용 ( Kim Cheol-yong ) 한국체육대학교 체육과학연구소 2019 스포츠사이언스 Vol.36 No.2

Taekwondo Poomsae has adopted as an Asaian Games programme in 2018 Jakarata Palembang and Republic of Korea won in whole events, two gold medals, a silver and a bronze medal. In addition, it has received substantial attention of media that coaches of two events which Korea could not win were Koreans, Poomsae showed preeminent performance and coaching ability as a Korean national sport. Various coaching methods are applied in practical sessions of Poomsae. One of the most frequently using methods is verbal coaching. Coaching language acts as a main factor for Poomsae athletes in techincal instruction, communication, interaction, et cetera. In particular, The reason why coaching language is crucial particularlly for Poomsae coaches is that they might have a positive influence on plenty of athletes by not only instructing technique to them but also motivating them psychologically. Likewise, the primary factor to determine the capability of coahces is performance enhancement of athletes’ based on confidence towards coaches. Therefore, this research aims to investigate the relationship between coahing language, coach-confidence and instruction-efficiency in order to contribute to the advancement of coaching. For the research, 274 samples were collected by convenience sampling who are registered to Korea Taekwondo Association and have ever participated in authorised competition of it. Overall, 223 of them were analysed by frequency, confirmatory factor, reliability, correlation and structural equating model analysis thorugh SPSS 21 and Amos 21 and the results are followed: Firstly, coaching language which is perceived by athletes has an effect on coach-confidence. Secondly, coaching language perceived by athletes affects on instruction-efficiency. Concretely, negative coaching language has negative impact on instruction-efficiency. Finally, coach-confidence of athletes has positive impact on instruction-efficiency. As mentioned above, there is a relationship between the coaching language of Taekwondo's bird leader and the trust of its leader and the effectiveness of its leadership.