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Correlation between Surface Electromyography and Conventional Electromyography in Facial Nerve Palsy
장하늘,유승돈,이종하,소윤수,김동환,전진만,이승아,김희상,윤동환,권정호 대한근전도전기진단의학회 2018 대한근전도 전기진단의학회지 Vol.20 No.2
Objective: To assess the correlation between surface electromyography (SEMG) and conventional EMG in patients with facial nerve palsy. Additionally, compare the discomfort and the time required by the patients in two methods. Method: 36 patients with facial palsy were given nerve conduction studies (NCS) via conventional EMG. Then, the peak root mean square (RMS) values were obtained from the SEMG. We also recorded visual analogue scale (VAS), House- Brackmann scale, and the time required for the examination. Results: Pearson’s correlation coefficient between the amplitude loss ratio of the RMS values obtained by SEMG compared to the unaffected side (RSEMG) and the amplitude loss ratio of CMAP amplitudes compared to the unaffected side (RCMAP) was 0.567 at the frontalis, 0.456 at the orbicularis oculi, 0.393 at the nasalis, and 0.437 at the orbicularis oris. An increase in RSEMG is positively correlated with an increase in RCMAP. The mean VAS score with conventional EMG was 3.55 ± 1.42, whereas that experienced when using SEMG was 0.11 ± 0.52 and the mean time required for conventional EMG was 610 ± 103.84 seconds, while that required for SEMG was 420 ± 86.32 seconds. Conclusion: This study demonstrated a significant positive correlation between facial muscle activities as measured by SEMG and conventional EMG in patients with facial nerve palsy. SEMG has the benefits of being more comfortable and faster when diagnosing facial palsy.
Biomechanical Parameters in Plantar Fasciitis Measured by Gait Analysis System With Pressure Sensor
유승돈,김희상,이종하,윤동환,김동환,전진만,이승아,한유진,소윤수,김용,한선영,이우진,한영록 대한재활의학회 2017 Annals of Rehabilitation Medicine Vol.41 No.6
Objective To investigate the differences in biomechanical parameters measured by gait analysis systems between healthy subjects and subjects with plantar fasciitis (PF), and to compare biomechanical parameters between ‘normal, barefooted’ gait and arch building gait in the participants.Methods The researchers evaluated 15 subjects (30 feet) with bilateral foot pain and 15 subjects (15 feet) with unilateral foot pain who had a clinical diagnosis of PF. Additionally, 17 subjects (34 feet) who had no heel pain were recruited. Subjects were excluded if they had a traumatic event, prior surgery or fractures of the lower limbs, a leg length discrepancy of 1 cm or greater, a body mass index greater than 35 kg/m2, or had musculoskeletal disorders. The participants were asked to walk with an arch building gait on a treadmill at 2.3 km/hr for 5 minutes. Various gait parameters were measured.Results With the arch building gait, the PF group proved that gait line length and single support line were significantly decreased, and lateral symmetry of the PF group was increased compared to that of the control group. The subjects with bilateral PF displayed significantly increased maximum pressure over the heel and the forefoot during arch building gait. In addition, the subjects with unilateral PF showed significantly increased maximum pressure over the forefoot with arch building gait.Conclusion The researchers show that various biomechanical differences exist between healthy subjects and those with PF. Employing an arch building gait in patients with PF could be helpful in changing gait patterns to normal biomechanics.
전진만,김희상,이종하,유승돈,윤동환,김동환,이승아,한유진,소윤수,김용,한영록,원장원,한선영 대한재활의학회 2018 Annals of Rehabilitation Medicine Vol.42 No.1
Objective To evaluate the association between balance function and asymmetry of knee extension strength in an elderly Korean population. Methods The strength of the knee extensors in each leg was measured in 306 community-dwelling elderly subjects (age, 76.70±4.85 years) and 25 young healthy subjects (age, 34.23±8.93 years). Based on the difference in strength of both legs, the elderly subjects were divided into symmetric (n=128) and asymmetric (n=178) strength groups using an asymmetry cutoff 20%. We determined the postural control ability of the subjects using InBody posturography, Berg Balance Scale (BBS), Timed Up and Go test (TUG) and Short Physical Performance Battery (SPPB). The sway index (SI) of the subjects in four positions was assessed using posturography. Results The group with asymmetric strength presented a significantly higher SI than the group with symmetric strength, in the normal position with eyes open and eyes open on pillows. In the normal position with the eyes closed and in postures with the eyes closed on pillows, the statistical analysis revealed no significant differences between the two groups. The three tests for physical performance (BBS, TUG, and SPPB) show no statistically significant difference between the two groups. Conclusion The asymmetric strength group showed a significantly lower balance than the group with symmetric strength based on several posturographic parameters. Ambulatory elderly individuals with asymmetry in knee extension strength, showed deficits in balance control even in normal clinical tests.
Evaluation of a Chromogenic Culture Medium for the Detection of Clostridium difficile
John Jeongseok Yang,이희주,남유선,김민진,조선영,유은경,소윤수 연세대학교의과대학 2014 Yonsei medical journal Vol.55 No.4
Purpose: Clostridium difficile (C. difficile) is an important cause of nosocomial diarrhea. Diagnostic methods for detection of C. difficile infection (CDI) are shifting to molecular techniques, which are faster and more sensitive than conventional methods. Although recent advances in these methods have been made in terms of their cost-benefit, ease of use, and turnaround time, anaerobic culture remains an important method for detection of CDI. Materials and Methods: In efforts to evaluatea novel chromogenic medium for the detection of C. difficile (chromID CD agar), 289 fecal specimens were analyzed using two other culture media of blood agar and cycloserine-cefoxitin-fructose-egg yolk agar while enzyme immunosorbentassay and polymerase chain reaction-based assay were used for toxin detection. Results: ChromID showed the highest detection rate among the three culture media. Both positive rate and sensitivity were higher from chromID than other culturemedia. ChromID was better at detecting toxin producing C. difficile at 24 h and showed the highest detection rate at both 24 h and 48 h. Conclusion: Simultaneous use of toxin assay and anaerobic culture has been considered as the most accurate and sensitive diagnostic approach of CDI. Utilization of a more rapid and sensitive chromogenic medium will aid in the dianogsis of CDI.
하준수 ( Joon Su Ha ),김성원 ( Sung Won Kim ),박후원 ( Hoo Won Park ),박재형 ( Jae Hyung Park ),소윤수 ( Yun Soo So ),김영배 ( Young Bae Kim ) 대한상하수도학회 2007 공동추계 학술발표회 논문집 Vol.2007 No.-
한강수계의 효율적인 수질관리를 위해서 보다 체계적이고 과학적으로 추진될 수 있는 중장기적인 기술지원체계의 확립이 절실히 요구되고 있으며 특히, 하수관거의 배출 형태에 따른 오염부하 및 물수지에 대한 체계적인 검토가 필요한 실정이다. 따라서 본 연구에서는 이천 지역의 처리구역에 포함된 처리 분구별로 연속유량과 건기 및 강우시의 수질조사를 수행함으로서 조사구역의 불명수를 중심으로 하수관거 배출 유형별 오염 부하를 산정하였다. 하수관거 중심의 오염부하 수지 구성요소는 오염발생원 부하, 부정류 유입부하 (I/I)와 유출부하 (SSOs) 및 누수부하와 처리장 유입부하로 고려하였다. 발생원 오염부하는 생활계 오염부하를 기준으로 산출하였으며, I/I 및 SSOs는 실측자료 및 물수지 산정시 도출한 비율을 고려하여 산출하였고 하수처리장 유입부하는 처리장 운영자료를 분석하여 산출하였다. 건기시 분류식 오수관거의 물질수지 산정결과 BOD 기준으로 유입부하가 5,229.7kg/d, 유출부하가 5,548.5kg/d로 유입량이 318.8kg/d 적게 산정되었다. 이는 하수처리장의 유입자료와 실측된 I/I 및 누수 유량과 부하는 2006년의 자료를 사용한 반면 처리구역의 인구현황 및 발생원의 배출부하는 2005년 자료를 사용한 결과 발생된 시간적 오류로 사료된다. 강우시 처리장 유입부하는 누적강우량 10.5mm를 초과 강우사상에 유입한 하수량과 부하를 적용하였다. 강우 유입수에 의한 유입부하는 문헌자료(KEI, 2002)의 EMC 자료를 이용하고 물수지에서 산정된 발생량(7,526 m3/일)을 기준으로 유추하였다. 우기시 분류식 오수관거의 물질수지 산정결과 유입 부하가 5,055.7kg/d, 유출부하가 5,371.0kg/d로 유입량이 315.3kg/d 크게 산정되는데, 이는 발생원의 배출부하에 관련된 오류뿐만 아니라 하수관거에 침전된 퇴적물이 강우에 의해 하수처리장으로 유입되면서 나타난 차이도 반영된 것으로 판단된다.