Effects of the Off -Loading Brace on the Activation of Femoral Muscles -A Preliminary Study-

최은희,Keon-Koo Kim,전아영,Eun-Hye Choi,Sung-Won Choi,Ka-Young Shin 대한재활의학회 2011 Annals of Rehabilitation Medicine Vol.35 No.6

Objective To provide the off -loading knee brace was designed relief for the pain associated with osteoarthritis by reduce loads on the degenerative compartment of the knee. This study examined the eff ects of the off -loading knee brace on activation of femoral muscles during squatting, slow and fast walking exercise in healthy young individuals. Method Ten healthy male subjects without a history of knee pain were recruited. Each subject was asked to do squatting, slow and fast walking exercises with a brace secured to the dominant leg. The same exercises were repeated without the brace. Surface electromyographic (sEMG) data was collected from the vastus medialis oblique (VMO), vastus lateralis (VL) and biceps femoris (BF) muscles from the dominant side of the leg. All dynamic root mean squre (RMS) values of sEMG were standardized to static RMS values of the maximal isometric contraction and expressed as a percentage of maximal activity. Results We found that VMO activity was signifi cantly decreased with application of the off -loading knee brace during squatting and fast walking exercise. However there were no signifi cant diff erences in VMO activity with application of the off -loading knee brace during slow walking exercise. Conclusion These results suggest that the external moment of the brace which effectively stabilized the patella in the movement in which the knee joints become relatively unstable. Th e brace could be useful in the short term,but for long-term use, weakening of the VMO is predicted. Therefore the program of selective muscular strength strengthening for the VMO should be emphasized.

Optimization of Operation Conditions for Improving the Nitrogen Removal Efficiency in Wastewater Treatment Plant

최은희,브람 클라벡,마타이 오스터하우스,Choi, Eun-Hee,Bram, Klapwijk,Mathijs, Oosterhuis The Korean Society of Agricultural Engineers 2010 한국농공학회논문집 Vol.52 No.1

네덜란드 브리젠빈 하폐수처리장 최종방류수의 $NH_4$-N 및 TN(Total Nitrogen)농도를 방류수 수질기준인 각각 4 mg/L와 10 mg/L에 맞추기 위한 최적의 운전조건을 도출하기 위해 다양한 제어시스템이 시뮬레이션 되었다. 본 연구에 사용된 모델은 IWA(International Water Association) 활성슬러지 모델 No.1 (ASM No.1)이었고, GPS-X가 시뮬레이터로 사용되었다. 모델링을 위한 매개변수 민감도 분석결과 ASM No.1의 총 19개 매개변수 중 8개 변수 ($Y_H$, ksh, koh, $b_H$, ${\mu}_a$, $k_{NA}$, kh, ka)가 방류수 수질에 영향을 미치는 것으로 조사되었고 이들 매개변수에 대해 보정을 수행하여 사용하였다. SRT, 호기/무산소기간, 외부탄소원 주입시간 변화에 따른 방류수질 변화를 시뮬레이션하였는데, 호기/무산소 11h/1h인 조건에서 SRT가 20일에서 25일로 증가되면 $NH_4$-N가 5.0 mg/L에서 2.9 mg/L로 감소되었고 호기/무산소 2h/1h의 조건에서는 SRT증가에 따라 $NH_4$-N은 큰 감소를 보이지만, 바이패스되는 유입수량의 감소로 탈질율이 낮아 방류수 TN이 11.1~11.5 mg/L로 예측되는 결과가 도출되었다. 탈질율을 높이기 위한 아세트산 주입은 동일한 양의 아세트산을 무산소 전기간 (1h)동안 균일 주입하는 것 보다는 무산소 초기 15분내에 주입하는 것이 효율적인 것으로 나타났다.

한국형 낙상 위험 사정도구의 타당성 평가연구

최은희,고미숙,이신애,박정하,Choi, Eun Hee,Ko, Mi Suk,Lee, Shin Ae,Park, Jung Ha 병원간호사회 2020 임상간호연구 Vol.26 No.2

Purpose: The purpose of this study was to test the predictive validity of the Fall Assessment Scale-Korean version (FAS-K) and to find the most appropriate cutoff score to screen high-risk fall groups in adult patients in general hospitals in Korea. Methods: We performed a prospective evaluation study in medical and surgical ward patients at two major general hospitals in Seoul. Data were collected from Nov. 1, 2018 to Feb. 28, 2019, nurses performed 651 observation series. The researcher measured the fall risk assessment score by applying FAS-K, MFS (Morse Fall Scale), and JHFRAT (Johns Hopkins Hospital Fall Risk Assessment tool) to the patients twice a week between 10 am and 12 noon. Data were analyzed using Pearson's corelation coefficients, and the sensitivity, specificity, predictive value, and the area under the curve (AUC) of the three tools. Results: The FAS-K was positively correlated with the MFS (r=.70, p<.001) and the JHFRAT (r=.82, p<.001). According to the receiver operating characteristics (ROC) curve analysis of the FAS-K, sensitivity, specificity, and positive and negative prediction values were 85.3%, 49.4%, 8.5%, and 98.4%, respectively, when the FAS-K score was 4. Therefore, the cut-off score of the FAS-K to identify groups with high fall risk was 4. Conclusion: The FAS-K is a valid tool for measuring fall risk in adult inpatients. In addition, the FAS-K score, 4, can be used to identify high-risk fall groups and know specific points in time to provide active interventions to prevent falls.

다변량분석법을 활용한 농업용 저수지 수질유형분류

최은희,김형중,박영석,Choi, Eun-Hee,Kim, Hyung-Joong,Park, Youmg-Suk 한국관개배수위원회 2010 한국관개배수논문집 Vol.17 No.2

In order to manage the water quality in reservoir, it is necessary to understand the temporal and spatial variation of reservoirs and to classify the reservoirs. In this research, agricultural reservoirs are classified according to physical characteristics (depth, residence time, shape of the reservoir etc) and water quality using multivatriate analysis (PCA and CA). CA (Cluster Analysis) method classify reservoirs into several groups as a similarity of the reservoirs, but it is difficult to indicate a full list to the one table. In case of PCA (Principle Component Analysis) method, it has the advantage for the classification on the reservoirs depending on the water quality similarity and also it is useful to analyze the relationship between related factors through correlation analysis. However PCA is limited to classify into several groups based on the characteristics of the reservoirs and each user should be classified as randomly subjective according to the relative position of the reservoir in the figure. In conclusions, compared to conventional reservoirs classification methods, both CA and PCA methods are considered to be a classification method that describes the nature of the reservoir well, but classification results has a restriction on use, so further research will be needed to complement.

논문 - 바이오가스화 도입을 위한 양돈농가 가축분뇨 발생 및 특성분석

최은희,윤영만,김창현,Choi, Eun-Hee,Yoon, Young-Man,Kim, Chang-Hyun 한국관개배수위원회 2011 한국관개배수논문집 Vol.18 No.2

The 21 livestock farms considering future installation of biogas systems were studied. These farms were examined how to raise the livestock, to treat manure, to operate facility with respect to manure characteristics. The 15 farms out of 21 farms have applied to the marine dumping and consignment treatment for treating manure and even farms which have equipped liquid fertilizing system have less capacity facility than legal standards. Characteristics of manure were affected by the scale of swine barn, clean water usage, frequency of cleaning, cleaning method, feces-urine separating method, etc. Retention time in storage (over 20 days) has resulted in lower concentration of organic matter which could reduce biogas production. This indicates that systematic barn management system is required. Inhibition tests showed that disinfectant and citric acid did not affected digestion rates at 10 times higher concentration than recommendation. However hypochlorous acid is likely to affect the anaerobic microbial activity.

하우스푸어 규모 추정 및 정책 방향에 대한 고찰

최은희,이종권,문효곤,김경미,Choi, Eun-Hee,Lee, Jong-Kwon,Moon, Hyo-Gon,Kim, Kyeong-Mi 한국토지주택공사 토지주택연구원 2014 LHI journal of land, housing, and urban affairs Vol.5 No.4

글로벌 금융위기를 겪고 난 이후, 주요 선진국에서는 가계부채/GDP 비율이 하락하는 경향을 보이고 있으나, 우리나라는 여전히 상승추세에 있으며, 가계부채 중 제일 큰 비중을 차지하는 주택담보대출은 최근 주택가격 하락으로 하우스푸어를 양산한 결과를 초래하였다. 본 연구는 최근 사회적 문제로 대두되고 있는 하우스푸어의 규모를 분석하는 한편, 하우스푸어의 형성배경에 주목하였다. 이는 하우스푸어의 문제가 일차적으로 개인과 금융기관 간의 금융거래에 기인하는 문제임에도 불구하고, 다양한 사회경제적 요인이 내재하고 있음을 간과할 수 없기 때문이다. 또한 이들 하우스푸어 문제를 해결하기 위해 사회적으로 어떠한 정책 방향을 설정해야 하는지 공적 개입 측면에서 현황과 향후 방향을 제안해보고자 한다. 우선 재무적관점에서 하우스푸어 규모를 추정하기 위한 판단지표로 DSR, LTA를 활용하였다. 재무적 위험을 판단하기 위한 임계치로 DSR은 40%, LTA는 100%로 가정하였다. 한편 LTA 산정과정에서 부동산자산의 평가액은 조사가격의 60%와 100%의 두가지 경우를 가정하였다. 다음으로 하우스푸어의 형성배경으로 사회 경제적 여건변화에 따른 가계의 차입의존도 증가, 금융기관의 과잉 대출경쟁, 부동산 시장의 장기침체, 주택담보대출 관련 제도적 문제 등이 원인인 것으로 파악되었다. 이처럼 하우스푸어의 발생에 대한 책임소재는 개인적인 문제 뿐 아니라 구조적 요인과 정책실패요인도 존재하고 있으며, 주택시장과 국민경제에 미치는 영향을 간과할 수 없다는 점에서 공적 개입의 필요성이 존재한다. 공적개입의 기본 방향은 공적 자금 부담을 최소화하고 시장기능을 활성화하는 차원에서 이루어져야 할 것이다. 또한 현재 하우스푸어 관련 정책으로 수행되고 있는 희망임대주택 리츠사업의 경우, 장기적으로는 대출거래 당사자인 대출기관도 책임을 부담하는 방식으로의 개선이 필요하다. After global financial crisis, the ratio of household debt to GDP was decreasing in other advanced countries such as the U.S., and the U.K. and so on. But, in Korea, household debt (of which residential mortgage loan account for a large part) ratio is still increasing. This paper focuses on the scale and characteristics of households in negative housing equity (those are called House-poors in Korea), and also the socio-economic backgrounds of the formation process. In financial perspective, the problem of negative housing equity depends on financial debt repayment capability. We used DSR (Debt Service Ratio) and LTA (Loan to Asset ratio) as financial indicators to evaluate the debt repayment capability. The critical value of DSR is assumed as 40%, and LTA 100%. The socio-economic backgrounds of the House-poors are as follows : increasing households debt dependency, over lending competition of financial institutions and unreasonable loan in household economy, instability of real estate market, week regulation on mortgage loan. Finally, this paper suggests some implications about the range and the target of public intervention.

삼음교 유침, 저주파 및 고주파 전침이 흰쥐의 항진된 장운동에 미치는 영향

최은희,이은경,전주현,양기영,김영일,이현,Choi, Eun-Hee,Lee, Eun-Kyung,Jeon, Ju-Hyun,Yang, Gi-Young,Kim, Young-Il,Lee, Hyun 대한침구의학회 2008 대한침구의학회지 Vol.25 No.5

Objectives : The aim of this study was to compare the effect of needle retention(NR) and electro-acupuncture of low(EA(L)) and high(EA(H)) frequencies at $SP_6$ and Sham point in rats. Methods : Intestinal hypermotility was induced by feeding carbachol and experimental groups divided mainly into 7 groups which were normal, holder, control, acupuncture in normal state of rats, pre-treatment of acupuncture(NR, EA) in hypermotility, post-treatment of acupuncture(NR, EA) in hypermotility. We fed charcoal to them after the treatment and measured the travel rate of charcoal in the gastrointestinal track so that which treatment affected more in intestinal hypermotility. Results : As the following study, each acupuncture ways of EA(L) had significant effect of decreasing travel rate on intestinal hypermotility than EA(H) and NR. The comparison between pre-treatment and post-treatment, pre-treatment had slight more effect than post-treatment but not significantly. There was more affected at $SP_6$ than Sham point on this study. Conclusions : There were 21 groups to find out which treatment was best to slow down the intestinal motility and $SP_6$-EA(L)-C had significant effect compared with control group at the figure than any other groups. That meant $SP_6$ had effect on gastric disorder such as intestinal hypermotility and its' effect had more prevention than cure. Further study was needed to have more precise effect of EA and $SP_6$.

농업용저수지 수질인자간 상관성 및 획귀분석

최은희,박영석,Choi, Eun-Hee,Park, Youmg-Suk 한국관개배수위원회 2011 한국관개배수논문집 Vol.18 No.1

In order to effectively manage the reservoir, reservoir water quality management should be based on physicochemical and configurational characteristics. In this research, correlation between factors affecting the reservoir water quality was examined. Chl-a and COD shows the highest positive correlation. Chl-a and T-P also has a high positive correlation, however Chl-a and T-N show lower correlation relatively. Even though T-N is an important factor for phytoplankton growth which increase Chl-a concentration, corelation of Ch1-a and T-N shows that enough nitrogen in the reservoir isn't no longer limiting factor. The age of reservoir can cause of increasing COD and SS. Embankment height and elevation of reservoirs shows strong negative correlation to water quality. That means reservoir which is higher embankment height and locate in higher elevations is less contaminated. Regression expression was derived with Chl-a and water quality parameters, and height of reservoir. Finally Chl-a was simulated using regression expression and it was a good approach to predict the Chl-a concentration.

근위축성 측삭 경화증 환자 치험 1례

최은희,전주현,김연미,이재민,고승경,강민완,김성래,양기영,김영일,이현,Choi, Eun-Hee,Jeon, Ju-Hyun,Kim, Yeon-Mi,Lee, Jae-Min,Go, Seung-Kyoung,Kang, Min-Wan,Kim, Sung-Lae,Yang, Gi-Young,Kim, Young-Il,Lee, Hyun 대한침구의학회 2007 대한침구의학회지 Vol.24 No.4

Amyotrophic Lateral Sclerosis(ALS) is Motor Neuron Disease(MND) that reveals muscle relaxation, bulbar palsy, extremities weakness, Pneumonia, in severe case, leads to death. Objectives : Amyotrophic Lateral Sclerosis is one of the incurable disease. In Oriental medicine, Wei symptom is similar as Amyotrophic Lateral Sclerosis, so we diagnosed it as Wei symptom and treated in Oriental medical system. Methods : The patient was treated by acupunture, moxibustion, herb medication, physical treatment. The improvement of the patient was judged by Amyotrophic Lateral Sclerosis Functional Rating Scale (ALSFRS), Grasping power on right arm, circumference of thigh and calf. Result : The patient had better condition for a while but the sputum irritated breathing and the day before he discharged vital sign was not stable and could not breath well. Conclusion : It is necessary to have more examination about the incurable syndromes such as Amyotrophic Lateral Sclerosis, and keep the patient's life better and expand their lives.

중성어혈 약침치료를 병행한 요골신경마비 환자 치험 4례

최은희,천혜선,이주희,류혜선,양동선,홍석,Choi, Eun-Hee,Chun, Hea-Sun,Lee, Ju-Hee,Ryu, Hye-Seon,Yang, Dong-Seon,Hong, Seok 대한약침학회 2011 Journal of pharmacopuncture Vol.14 No.4

Objectives: This study was to investigate the clinical effect of additional Jungsongouhyul Pharmacopuncture on radial nerve palsy patients. Methods & Results: The patients were hospitalized or outpatients in Department of traditional korean medical hospital, Dongshin University from 28th, Oct. 2009 to 25th, Aug, 2010. All patients were treated by additional Jungsongouhyul Pharmacopuncture. To evaluate the wrist drop and numbness of fingers, coding result, Verbal numerical scale (VNS) were used. As the result, symptoms are improved remarkably according to improvement of coding result, VNS score. Conclusions: Patients were treated during 3.5 weeks in average. All cases were excellent results by additional Jungsongouhyul Pharmacopuncture. But further studies are required to investigate exact effects.