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탈착용 종아리 압박 기구 착용이 여자 대학생들의 등속성 운동 시 하지 근기능에 미치는 영향
류종식(Ryu, Jong-Sik),김차룡(Kim, Cha-Ryong),송남석(Song, Nam-Seok),김상영(Kim, Sang-Yeong),황강민(Hwang, Kang-Min),채원식(Chae, Won-Sik),김종근(Kim, Jong-Geun) 한국체육과학회 2018 한국체육과학회지 Vol.27 No.6
The purpose of this study was to investigate the effect of muscular strength and muscle endurance on the isometric and isokinetic muscular strength of calf compression equipment. The subjects were selected among 18 college students who had no ankle related disorder among 20 subjects. All subjects measured ROM, maximum torque (Peak Torque), and total work of the ankle according to the presence or absence of the compression mechanism. Muscle strength test showed that the peak torque(Nm). Dorsi flexion was 33.41 ± 4.35Nm, 34.66 ± 4.45Nm, and plantar flexion was 120.94 ± 42.24Nm at the lower flexion, respectively, which was not significantly different from 123.97 ± 31.5Nm. Muscle endurance test showed that the total work(Nm). dorsi flexion was lowered from 82.22 ± 8.03Nm to 80.27 ± 7.93Nm, but there was no significant difference. On the other hand, plantar flexion was 237.05 ± 93.64 Nm and 255.94 ± 84.23 Nm, respectively (p<.05). These results suggest that wearing a calf compression equipment and dorsiflexion and flexion exercises will increase the range of static joint motion and improve strength and muscle endurance. In order to improve the ankle joint"s muscular function, Exercise seems to have a positive effect.
김석진 ( Seok Chin Kim ),황종식 ( Jong Sik Hwang ),도영호 ( Young Ho Do ) 한국생산성학회 2011 生産性論集 Vol.25 No.2
This paper investigates arbitrage opportunities and market efficiency by examining the put-call parity (hereafter PCP) in KOSPI 200 options market. The sample period is from January 2, 2001 to December 30, 2008. Interestingly, put premiums tend to be overvalued. Mispricing of OTM is larger than that of ITM or ATM. Overall, PCP does not hold in KOSPI 200 options market. It implies inefficiency of KOSPI 200 options market so that it is possible to make arbitrage profits by exploiting the violation of PCP. Finally, we regress the model to find an evidence on the relationship between the arbitrage profit and the underlying features such as maturity and moneyness. The maturity and moneyness positively affect the arbitrage profit in full and sub-sample periods.
레이노 현상에 의한 수지 괴사로 진단된 원발쓸개관간경화
이우제 ( Woo Je Lee ),강종식 ( Jong Sik Kang ),이기업 ( Ki Up Lee ),박중열 ( Joong Yeol Park ),이상아 ( Sang Ah Lee ),황윤우 ( Yoo Noo Hwang ),윤환 ( Hwang Yoon ) 대한류마티스학회 2011 대한류마티스학회지 Vol.18 No.1
Necrosis of the upper extremity occurs rarely in type 2 diabetic patients compared to lower extremity necrosis. We report a 69-year-old woman with type 2 diabetes mellitus who presented with necrosis of the left 5th finger tip. The patient had primary biliary cirrhosis accompanied by necrosis of the fingertip due to severe Raynaud`s phenomenon. Primary biliary cirrhosis (PBC) is a typical autoimmune disease, which can in rare cases be accompanied by autoimmune symptoms including sicca symptom and Raynaud`s phenomenon. Furthermore, autoimmune diseases, such as systemic sclerosis, rheumatoid arthritis and undifferentiated connective tissue disease (UCTD) can be associated. Although every type of vascular etiology should be considered as a cause of digital necrosis, Raynaud`s phenomenon is usually not considered in diabetes. We report this case of finger tip necrosis due to severe Raynaud`s phenomenon accompanied by PBC and UCTD in a diabetic patient.
다절편 전산화단층촬영을 이용한 관상동맥촬영의 통계적 고찰 : 일산백병원을 중심으로
홍성완(Seong Wan Hong),박기수(Ki Su Park),강종식(Jong Sik Kang),황중식(Jung Sik Hwang),이동준(Dong Jun Lee),김현규(Hyeon Kyu Kim) 대한전산화단층기술학회 2009 대한CT영상기술학회지 Vol.11 No.1
Purpose Mainly on patients who have taken coronary angiography using 64 channel MDCT instaⅡed in our hospital, frequency, meaningful correlation and feasibility of the heart CT was studied by statistic analysis. Materials and methods From Apr. 12, 2006 to Dec. 31, 2008, 4677 inpatients or outpatients were tested ECG-gated coronary artery CTA(computed tomographic angiography; CCTA) in Inje UnⅣersity Ilsanpaik Hospital. Their test results were analyzed with SPSS 10 (SPSS Inc. Chicago, IⅡinois). Results The analysis difference in sex showed 53.1% of male patients were normal in the results. It was higher than 46.9% in female results. Stent were executed on 67.5% of male patients which is also more than female. Male patients read to have more than 30% constriction in coronary were 67.5% of the total patients. It also is the higher rate compared with female patients. The analysis difference in age showed results of 83.3%, 98.5% and 98.1% in cases of normal, stent and more than 30% constriction each with patients who is 40 or older. The analysis difference in weight showed meaningful rate of 67.5% normal and 78.3% stent with female patients who weigh 60kg or more. Patients with chest pains showed 53.8% normal, 6.2% stent and 41.9% more than 30% constriction in their test results. In case of dose, male patients showed higher rate of 64.2% compared to female patients, and it was absolutely higher with the patients who is 40 or older with rate of 91.9%. Dose was also high with female patients who weigh 60kg or more with rate of 91.7%. Conclusion The image view obtained by CCTA made it possible to view the range of stenosis of coronary in three dimensions. The study result using the reading outcome of coronary constriction and the basic image data showed statisticaⅡy meaningful differences in physical conditions, age and sex.