투기종목 선수들의 무산소성 역치의 특성

조현철,송순천,김춘경,김의영,안용규,이규석,김학렬 龍仁大學校 體育科學硏究所 1991 體育科學硏究論叢 Vol.1 No.1

The purpose of the present study is to determine the levels of maximal oxygen uptake and anaerobic threshold of boxing players(n=23), ken-do players(n=18), Judo players(n=12), T.D.K players(n=18). Treadmill test was used to measure maximal state and anaerobic threshold of metabolic variables. Treadmill exercises protocol was 2-min incremental test from an initial work load of 0MPH(grade : 0%) to all-out by step of 1.0MPH(grade : 2%). The results of measurement was as follows : 1. Absolute(1/min) and relative(ml/kg/min) maximal oxygen uptake was highest(5.08l/min, 65.01 ml/kg/min) in Judo layers, followed in order by the T.D.K players (4.37l/min, 64.74 ml/kg/min), Boxing players(4.18) l/min, 63.19 ml/kg/min) and ken-do players(3.81l/min, 58.65 ml/kg/min). It is not significant difference in the relative maximal oxygen uptake, but is significant difference between group in the absolute maximal oxygen uptake(p<0.001) 2. AT-VO₂(l/min) and AT-VO₂(ml/kg/min) in the anaerobic threshold was highest (3.71 l/min, 47.28 ml/kg/min) in Judo players, followed in order by the T.K.D players(3.29 l/min, 48.75 ml/kg/min), boxing players(2.90 l/min, 43.91 ml/kg/min) and ken-do players(2.82 l/min, 43.52 ml/kg/min). It is not significant difference in the AT-V02(ml/kg/min), but is significant difference between group in the AT-V02(l/min). (p<0.001) 3. %HRmax and %V 02max in the anaerobic threshold was not significant difference between group.

한국인 중증 외상 환자에서 촬영한 경추 외측면 단순 방사선 영상의 적절성

이경학 ( Kyung Hag Lee ),김영철 ( Yeong Cheol Kim ),최석호 ( Seok Ho Choi ),한국남 ( Gook Nam Han ),이수언 ( Soo Un Lee ),이정은 ( Jung Eun Lee ),서길준 ( Gil Joon Suh ),윤여규 ( Yeo Kyu Yoon ) 대한외상학회 2012 大韓外傷學會誌 Vol.25 No.4

Purpose: The objective of this study was to investigate the appropriateness of the cross table lateral cervical X-ray used in the emergency department for severely traumatized Korean patients. Methods: Patients visiting our institution from May 2011 to May 2012, who had injury severity score (ISS) > 15 and who received a cervical X-ray in the emergency department, were included in this study. Data including demographics, ISS score, GCS score, and place where the x-ray was taken were collected to evaluate their relationship with appropriate coverage of the cervical X-ray. The appropriateness of a cervical cross lateral view Xray was evaluated using exposure of the basion, and the opisthion, as well as the distal level of exposure. Results: Fifty-two patients were included in this study. The identification rate of the basion was 79.2%, and the identification rate of the opisthion was 88.7%. Complete exposure of C7/T1 was accomplished in 3.8% of the patients. The ISS was higher for X-ray taken in the trauma bay, but the range of exposure showed no difference between the places where the X-rays taken. Patients who had exposure of C 5/6 or more had lower body weight and body mass index (BMI) compared with unexposed patients. Conclusion: In severely traumatized Korean patients, the adequacy of the cross table lateral cervical X-ray was inappropriate in most cases. No difference was observed in the exposure range between the places where the X-rays were taken, and patients with less exposure showed higher body weight and higher BMI. (J Trauma Inj 2012;25:241-246)

전투 상황에서 발생한 사지 총상 및 폭발창의 치료

이정은 ( Jung Eun Lee ),이영호 ( Young Ho Lee ),백구현 ( Goo Hyun Baek ),이경학 ( Kyung Hag Lee ),조영재 ( Young Jae Cho ),김영철 ( Yeong Cheol Kim ),서길준 ( Gil Joon Suh ) 대한외상학회 2013 大韓外傷學會誌 Vol.26 No.3

Purpose: We should prepare proper medical service for disaster control as South Korea is not free from terrorism and war, as we experienced through the two naval battles of the Yeonpyeong, one in 1999 and the other in 2002, the sinking of Cheonan in 2010, and the attack against the border island of Yeonpyeong in 2010. Moreover, North Korea`s increasingly bellicose rhetoric and mounting military threats against the world demand instant action to address the issue. The aim of this article is to describe our experience with three patients with combat-related gunshot and explosive injuries to their extremities and to establish useful methods for the management of patients with combat-related injuries. Methods: Three personnel who had been injured by gunshot or explosion during either the second naval battle of the Yeonpyeong in 2002 or the attack against the border island of Yeonpyeong in 2010 were included in our retrospective analysis. There were one case of gunshot injury and two cases of explosive injuries to the extremities, and the injured regions were the left hand, the right foot, and the right humerus. In one case, the patient had accompanying abdominal injuries, and his vital signs were unstable. He recovered after early initial management and appropriate emergency surgery. Results: All patients underwent emergent surgical debridement and temporary fixation surgery in the same military hospital immediately after their evacuations from the combat area. After that, continuous administration of antibiotics and wound care were performed, and definite reconstructions were carried out in a delayed manner. In the two cases in which flap operations for soft tissue coverage were required, one operation was performed 5 weeks after the injury, and the other operation was performed 7 weeks after the injury. Definite proce dures for osteosynthesis were performed at 3 months in all cases. Complete union and adequate functional recovery were achieved in all cases. Conclusion: The patient should be stabilized and any life-threatening injuries must first be evaluated and treated with damage control surgery. Staged treatment and strict adherence to traditional principles for open fractures are recommended for combat-related gunshot and explosive injuries to the extremities.

급성출혈성 위염과 동반된 분선충증 1 예

이상룡,오경석,이건호,설상영,변상준,윤혜경,고원규,김오길,전진숙,김학준,안용준,하준호,김순관,전인선,김 형 대한소화기내시경학회 1999 Clinical Endoscopy Vol.19 No.1

A 69-year-old male was admitted to the neurosurgery department for traumatic intracra-nial hemorrhage in both frontal lobes. After 2 months, he complained of epigastric dis-comfort, nausea, vomiting, and loose stools. The gastric endoscopic examination found acute hemorrhagic gastritis and there were rhabditoid nematode larvae in the gastric fluid and biopsy sections. The filariform larvae of Strongyloides sp. were discovered from a fecal culture. The patient was treated with albendazole (200 mg, po bid, for 4 weeks). The epigastric discomfort disappeared and endoscopic findings improved after treatment.

Ti scaffolds with tailored porosities and mechanical properties using porous polymer templates

Lee, Jung-Bin,Ahn, Min-Kyung,Koh, Young-Hag,Lee, Hyun,Kim, Hyoun-Ee Elsevier 2016 Materials & Design Vol.101 No.-

<P><B>Abstract</B></P> <P>This study proposes a simple, useful approach to produce three-dimensionally macrochanneled titanium (Ti) scaffolds with tailored porosities and mechanical properties using porous polylactic acid (PLA) templates that can be prepared by conventional solid freeform fabrication (SFF) technique. Specifically, methylcellulose (MC) polymer was used as a binder since it could effectively bind coarse Ti particles and remain chemically stable inert in organic solvents used to dissolve PLA polymer. A Ti slurry-filled PLA was immersed in chloroform to remove the PLA template, followed by sintering at 1300°C for 3h in a vacuum. The use of a relatively small amount of a MC binder and removal of the PLA template in solvent enabled the construction of straight Ti frameworks and macrochannels in a 3-D periodic pattern without severe impurity contamination. This tightly controlled porous structure enabled the achievement of high compressive strengths without a catastrophic failure, while the compressive strength increased from ~72MPa to 121MPa with a decrease in overall porosity from ~75vol% to ~67vol%. In addition, the porous Ti scaffolds showed good biocompatibility, which was assessed by <I>in vitro</I> cell tests in terms of attachment, proliferation, and differentiation of MC3T3-E1 cells.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Ti scaffolds with tailored porosities were produced using polymer templates. </LI> <LI> Three-dimensionally interconnected macrochannels were created. </LI> <LI> Ti frameworks were well densified without noticeable impurity contamination. </LI> <LI> Compressive strength increased with a decrease in overall porosity. </LI> <LI> Porous Ti scaffolds showed good biocompatibility. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

성인 및 소아에서 요골동맥카테터 삽입술을 위한 받침대

이상귀,오경학,최현규 대한마취과학회 1996 Korean Journal of Anesthesiology Vol.31 No.1

CD5 음성 B 세포형 만성 림프구성 백혈병 1예

이상룡,오경석,이건호,김오길,전진숙,김학준,안용준,하준호,전인선,김형,김명유,이정녀 대한내과학회 1999 대한내과학회지 Vol.56 No.2

A 67-year-old male visited Pusan Veterans Hospital due to general weakness and weight loss for 6 months. Physical examination showed non-tender 4 finger breaths sized splenomegaly and both inguinal and cervical lymphadenopathy. The white blood cell count was 25,300/uL with 91% morphologically mature lymphocytes. Bone marrow aspirate revealed hypercellularity with 74.5% lymphocytes morphologically similar to peripheral lymphocytes. The immunophenotpying study of lymphocytes displayed the phenotype of CD19(+), CD20(+), HLA-DR(+), sIg(+) but CD5(-). We concluded that this patients's diagnosis is CD 5 negative B-cell chronic lymphocytic leukemia.

제 1 족근-중족관절의 외-족저 골절-탈구(증례보고)

이주홍,황병연,송경진,김학지,이재훈 대한골절학회 1996 대한골절학회지 Vol.9 No.2

Dislocation and fracture-dislocation fo the tarsometatarsal joint were rare injuries, but an increase of motor vehicle accidents, industrial and athletic injuries seems to he responsible for an incresing incidence of these injuries. Because of the basic inherent stabilith of the bony architecture and the structures on the sole of the foot including the plantar fascia, the intrinsic foot muscles, peroneus, tibialis posterior tendon and the stronger plantar ligaments most dislocations occur in dorsal and lateral direction. We report a case of 32 year-old male patient who had an isolated fracture and disloction of the first tarsometatarsal joint with lateral and plantarward displacenent. This developed by in-car accident and which did not tit to any proposed classification systems. The diagnosis was delayed because of the combined injuries, but with open reduction and internal fixation with 2 smooth K-wires, satisfactory results could at 12 moonths follow-up study.

성취관련 자기 불일치와 평가위험 스트레스가 수행불안에 미치는 효과

표경식,조용래,이무석,김학렬,박상학,김상훈 大韓神經精神醫學會 1998 신경정신의학 Vol.37 No.6

목적: . 취약성 -스트레스 모델에 입각하여 과제수행중의 불안수준(정서적. 인지적 및 행동적 측정치)이 성취관련 자기 불일치(=심리적 취약성 변인)와 평가위협 스트레스(=스트레스 유발인)의 상호작용에 의해 영향을 받는 지를 알아보고자 하였다 이를 토대로, 수행불안의 발생기전을 밝히며. 더 나아가서는 수행 불안을 효과적으로 감소시키고 적절하게 예방하기 위한 심리학적 대책을 제안하고자 하였다. 방 법 : 자기 불일치 고 집단과 저 집단에 속하는 대학생을 각각 40명씩 선발하여 각 집단별로 절반씩 평가위협조건과 중성적인 조건에 무선 할당한 후 지적 능력 과제(언어추리검사와 바꿔쓰기검사)를 실시하였다. 결 과 : 평가위협 조건에서 자기 불일치 고 집단이 저 집단에 비해 과제 수행동안의 상태불안수준이 유의하게 높았을 뿐만 아니라.자기 불일치 고 집단의 경우 중성적인 조건에 비해 평가위협 조건에서 상태 불안수준이 더 높았으며, 이러한 차이는 통계적으로 유의한 경향성을 보였다. 그 반면에,중성적 조건에서 두 집단간 차이와. 자기 불일치 저 집단에서 스트레스 수준간의 차이는 모두 유의하지 않았다. 또한 자기 불일치 고 집단이 저 집단에 비해 스트레스 수준에 상관없이 과제를 수행하는 동안 인지적 방해를 더 많이 받았다. 자기 불일치 고 집단이 저 집단에 비해 스트레스 수준에 상관없이 바꿔쓰기검사에서 더 낮은 수행을 보이는 경향이 있었으나. 언어추리검사에서는 어떤 효과도 유의하지 않았다. 결 론: 수행불안은 성취관련 자기 불일치와 평가위협 스트레스에 의해 영향을 받으며, 이 두 가지 변인의 상호 작용에 의하여 발생할 것이라는 가설은 수행불안의 정서적 측정치에서 비교적 강하게 지지되었다. 뿐만 아니라. 이러한 가설은 수행불안의 인지적 및 행동적 측정치에서도 역시 부분적으로 지지되었다. 이러한 결과들로 보아 수행불안의 발생과정을 이해하고 이런 불안을 효과적으로 예방하거나 감소시키기 위해서는 성취관련 자기 불일치 변인과 평가위협 스트레스를 함께 고려하는 것이 중요하다고 결론 내릴 수 있다. 0bjectives The purpose of this study to examine if the levels of anxiety(emotional, cognitive, and behavioral measures) during performance are influenced by interaction of both achievement related self discrepancy( = psychological vulnerability variable) and evaluative threat stress(=stressor) based on vulnerability-stress model in order to identify the mechanism of development of performance anxiety and futhermore to suggest psychological intervention strategies to reduce and prevent it effectively. Method : High and lows self discrepancy subjects consisted of students from the upper(n=40) and lower 15%(n=40) on achievement related self discrepancy scale, respectively. They were randomly assigned to either evaluative threat condition or neutral condition, and then all subjects took intellective task(verbal reasoning test and digit symbol test). Results : The results were as fo11ows : 1) High self discrepancy subjects under evaluative threat reported significantly higher level of state anxiety during performance than low self discrepancy subjects under any condition and also experienced higher degreee of state anxiety with marginal significance than high self discrepancy subjects under neutral condition, whereas there were no significant effects on the anxiety level of group variable under neutral condition or of stress variable in low self discrepancy subjects. 2) High self discrepancy subjects reported more cognitive interference during performance than low self discrepancy subjects regardless of the level of stress. 3) High self discrepancy subjects performed marginally significantly more poorly in digit symbol test than low self discrepancy subjects regardless of the level of stress, whereas there were no significant effects on verbal reasoning test. Conclusion : The hypothesis that performance anxiety could be affected by achievement related self discrepancy and stress, and specially by interaction between self discrepancy and stress was relatively strongly supported by the results on emotional measure of performance anxiety. In addition, this hypothesis received partial support by the results on cognitive and behavioral measures. We might conclude that it is important to consider achievement-related self discrepancy and evaluative threat stress together to understand the mechanism of development of performance anxity and to reduce or prevent this anxiety effectively.

국경간 전자상거래 무역창업 교육훈련 전략

김학민 ( Hag-min Kim ),배경원 ( Kyung Won Bae ),이예림 ( Yea-rim Lee ),김대곤 ( Dae Gon Kim ) 한국통상정보학회 2019 통상정보연구 Vol.21 No.2

국경간 전자상거래 무역은 최근 들어 급속한 성장을 보여주고 있다. 세계경제가 침체되는 상황에서도 그 규모와 속도는 지속적으로 발전하고 있다. 과거, 한국의 전자무역은 세계적으로 그 위상을 인정받은 바 있으나, 현재는 미국의 아마존, 중국의 알리바바와 비교할 때, B2C 분야의 글로벌 기업이 존재하지 않아 그 경쟁력이 떨어진다고 여겨진다. 본 논문에서는 한국의 국경간 전자상거래 무역의 교육훈련을 통한 인력양성의 전략과제를 모색하고자 한다. 특히, 국경간 전자상거래 취업 및 활성화를 위한 인력양성 전략을 제안하고자 한다. 이를 위하여 세부적인 교육프로그램의 내용과 이의 타당성에 대하여 검증하였다. 연구 결과를 요약하면 다음과 같다. 첫째, 국경간 전자상거래 교육 훈련의 수요는 지속적으로 증가하고 있기 때문에 다양한 무역주체와 대상을 고려하여 국가, 기업, 지역, 상품, 기술 맞춤형으로 운영되어야 한다. 둘째, 디지털 소비자들의 특성을 고려하여 수출 및 내수시장의 특성을 고려하여 지역적으로 특화하여야 하고 현지화해야 한다. 셋째, 각 대학들이나 기관들이 운영하고 있는 국경간 전사상거래 인력양성 프로그램을 전국적으로 확산하여야 한다. 마지막으로 국경간 전자상거래 인력양성의 컨트롤 타워 및 플랫폼을 구축하여 한국의 디지털무역 역량을 제고할 수 있도록 산관학 협동으로 개방형체제의 도입이 필요하다는 것이 본 연구의 결과이다. The CBEC(Cross border e-commerce) has shown rapid growth in recent years. The size and speed of the global economy is constantly evolving even in the face of recession economy. In the past, Korea's e-trade has been acknowledged globally, but compared to Amazon in U.S. and Alibaba in China, the cross border B2C electronic commerce is considered to be less competitive. In this paper, we try to find the strategic tasks for education and training for cultivating CBEC experts in Korea. The results of the study are as follows. First, since the demand for CBEC education and training is steadily increasing, the program should be customized for satisfying various trading partners and targets. Second, localization to fit CBEC in regional markets should be made by considering the characteristics of digital consumers and the firm competence. In this regard, the satisfaction for CBEC education and training program is the most important factor for creating jobs. Third, CBEC entrepreneurship education and training programs should be expanded by considering in connection with universities and local companies. Fourth, the reference curriculum for CBEC entrepreneurship program is suggested for future implementation. Finally, a control tower and platform should be constructed to introduce an open system of collaborative CBEC entrepreneurship education and training.