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뇌졸중 환자의 상지 기능에 기능적 전기 자극이 미치는 영향: 무작위대조군연구에 기초한 체계적 고찰
황수진,서연주,Hwang, Su-jin,Seo, Yeon-ju 대한고유수용성신경근촉진법학회 2022 PNF and Movement Vol.20 No.2
Objective: Electrical stimulation is an assistive technology used to aid the recovery of upper limb use after stroke. The purpose of this systematic review was to determine the effects of electrical stimulation on upper extremity function in individuals with hemiparetic stroke and to develop an evidence base that supports the use of electrical stimulation for upper limb recovery after stroke. Design: A systematic review based on randomized controlled trials (RCTs). Methods: Studies published before April 20 2021 were collected for this review by searching PubMed, four other databases, and RCTs that reported the effects of electrical stimulation on upper extremity function in individuals with the characteristic stroke type. Information on the following parameters was extracted from each study: surname of first author, published year, country, participants, intervention, intervention's intensity, comparison, outcomes, additional therapy, and summary of results. This review also evaluated the bias within each study, including any selection bias, performance bias, detection bias, attrition bias, and reporting bias. Results: This review included five RCTs, and 208 stroke patients were included in the analysis. Stroke patients who underwent electrical stimulation showed significantly improved grip and pinch strengths, wrist range of motion, and basic daily living compared to those in the control group; however, there was no improvement in upper extremity function. Of the selected papers, 60% showed a "high risk" of performance bias, and 20% showed a "high risk" of detection bias. Conclusions: The results of this systematic review suggest that electrical stimulation provides some benefits to stroke patients, such as improved hand strength and range of motion. However, future studies are needed to provide clinical evidence of the effects of electrical stimulation on upper extremity function in stroke patients.
대공방어무기체계의 교전 효과도 향상을 위한 함상 배치 위치 분석
황수진,Hwang, Soo-Jin 한국군사과학기술학회 2006 한국군사과학기술학회지 Vol.9 No.3
Naval combat system is total management system integrating a ship and several weapon system functions. For the mission of a ship, naval combat system manages features and constraints of each weapon system. Proper treats of each weapon system's conditions guarantee effective performances of naval combat system. In this paper, the relationship of anti-air weapon system's on board position and self-defence effectiveness against anti-surface missiles is studied
생간건비탕(生肝健脾湯)이 알코올 투여로 유발된 흰쥐의 고지혈증과 간 손상의 예방에 미치는 영향
황수진,최홍식,김승모,우창훈,Hwang, Soo-Jin,Choi, Hong-Sik,Kim, Seung-Mo,Woo, Chang-Hoon 대한본초학회 2009 大韓本草學會誌 Vol.24 No.4
Objectives : This study was performed to investigate the effect of water extracts from Saengkankeonbi-tang on prevention of hyperlipidemia and liver damage induced by alcohol. Methods : Except for the normal group, we fed rats the control and Saengkankeonbi-tang groups with 25% alcohol for 55 days. For the same period we fed the Saengkankeonbi-tang group with Saengkankeonbi-tang extract as well and rats in normal and contrlo group on saline solution. We measured the serum components in rat's blood, body weight and weight of liver. Results : 1. At first, we observed effects of Saengkankeonbi-tang on prevention of hyperlipemia induced by alcohol. Saengkankeonbi-tang group showed significant decrease in total cholesterol levels in comparison with those of the control group. Saengkankeonbi-tang group showed significant increase in HDL-cholesterol levels in comparison with those of the control group. Saengkankeonbi-tang group showed significant increase of body weight in comparison with those of the control group in 4weeks and 8weeks. 2. At second, we observed effects of Saengkankeonbi-tang on prevention of liver damage induced by alcohol. Saengkankeonbi-tang group showed significant decrease in GOT, GPT, LDH and ALP levels in comparison with those of the control group. Saengkankeonbi-tang group showed significant increase of liver weight in comparison with those of the control group. Conclusions : Reviewing these experimental results, it appears that water extracts from Saengkankeonbi-tang have pharmaceutical efficacy on prevention of hyperlipidemia and liver damage induced by alcohol. Therefore further additional study should be conducted to elucidate in depth the pharmaceutical efficacy of these.
생간건비탕(生肝健脾湯)이 알코올 투여로 유발된 흰쥐의 고지혈증과 간 손상의 예방에 미치는 영향
황수진 ( Soo Jin Hwang ),최홍식 ( Hong Sik Choi ),김승모 ( Seung Mo Kim ),우창훈 ( Chang Hoon Woo ) 대한본초학회 2009 大韓本草學會誌 Vol.24 No.4
Objectives: This study was performed to investigate the effect of water extracts from Saengkankeonbi-tang on prevention of hyperlipidemia and liver damage induced by alcohol. Methods: Except for the normal group, we fed rats the control and Saengkankeonbi-tang groups with 25% alcohol for 55 days. For the same period we fed the Saengkankeonbi-tang group with Saengkankeonbi-tang extract as well and rats in normal and contrlo group on saline solution. We measured the serum components in rat`s blood, body weight and weight of liver. Results: 1. At first, we observed effects of Saengkankeonbi-tang on prevention of hyperlipemia induced by alcohol. Saengkankeonbi-tang group showed significant decrease in total cholesterol levels in comparison with those of the control group. Saengkankeonbi-tang group showed significant increase in HDL-cholesterol levels in comparison with those of the control group. Saengkankeonbi-tang group showed significant increase of body weight in comparison with those of the control group in 4weeks and 8weeks. 2. At second, we observed effects of Saengkankeonbi-tang on prevention of liver damage induced by alcohol. Saengkankeonbi-tang group showed significant decrease in GOT, GPT, LDH and ALP levels in comparison with those of the control group. Saengkankeonbi-tang group showed significant increase of liver weight in comparison with those of the control group. Conclusions: Reviewing these experimental results, it appears that water extracts from Saengkankeonbi-tang have pharmaceutical efficacy on prevention of hyperlipidemia and liver damage induced by alcohol. Therefore further additional study should be conducted to elucidate in depth the pharmaceutical efficacy of these.
깊이가 깊은 사출 금형의 새로운 측벽 두께 설계에 관한 연구
황수진(S. J. Hwang),류민영(M.-Y. Lyu) 한국소성·가공학회 2008 소성가공 : 한국소성가공학회지 Vol.17 No.7
Cavity in the mold is exposed to high pressure during injection molding operation. Injection molded articles with deep depth are often demanded as design variety increases. Subsequently mold becomes weak and deformation increases as the mold depth increases. Thus the injection molds for deep depth articles should be designed to hold out high pressure or stress concentration and large deformation. Through this study, equation for mold design was examined and suggested novel method to determine equation for mold design with deep depth. Novel equation developed in this study was modified from beam theory considering cantilever and two points bending situation while previous equation was modified from just cantilever bending situation. The validity of novel equation was verified through computer simulations for various mold side and wall thickness.