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유승돈(Seung Don Yoo),박정현(Joung Hyun Park) 대한임상노인의학회 2008 대한임상노인의학회지 Vol.9 No.2
Background: Stroke patients have high prevalence of osteoporosis and fracture. Low bone mineral density (BMD) and fracture may contribute to further functional loss. The purposes of this study were to investigate the clinical manifestations of osteoporosis in the patients with stroke and define the relationship between functional parameters and BMD. Methods: The subjects were 33 female stroke patients with cerebral infarction (n=24) and cerebral hemorrhage (n=9). Group I patients were 17 cases below three months of the duration from onset to the time to do BMD; Group II were 16 cases above three months. Clinical parameters were BMD in the affected limbs of stroke patients, vertebral fracture and femur fracture on radiographs, and the relationship between functional parameters (gait, motor power, spasticity, neurologic deficit, activities of daily living) and BMD. Results: Of the 33 stroke patients with stroke, 9 (27%) had vertebral fractures and 3 (9%) had femur fracture. There were not significant differences in spine and femur BMD between the two groups (P>0.05). Modified Ashworth score and National Institute of Health Stroke Score (NIHSS) were significantly correlated to BMD of group II (P<0.05). Gait, motor power, and ADL were unrelated to the BMD of two groups (P>0.05). Conclusion: Results showed a high prevalence of vertebral fracture in the patients with stroke and correlation between BMD and clinical parameters. Therefore early screening and active management of osteoporosis in the patients with stroke is crucial to prevent possible complications.
압력센서가 내장된 보행 분석기를 통한 아치 형성 보행의 생역학적 변수의 특성
이배열 ( Bae Youl Lee ),유승돈 ( Seung Don Yoo ),이승아 ( Seung Ah Lee ),전진만 ( Jinmann Chon ),김동환 ( Dong Hwan Kim ),정용설 ( Yong Seol Jeong ),노성규 ( Seong Gyu Noh ),이미애 ( Mi Ae Lee ),이우진 ( Woo Jin Lee ),김은혜 ( Eun 대한스포츠의학회 2016 대한스포츠의학회지 Vol.34 No.1
The objective of study was to compare biomechanical parameters between normal and arch building gait in healthy subjects. A total of 40 feet from 20 healthy adults were evaluated in this study. The participants were asked to walk on a treadmill comfortably at 2 km/hr for 30 seconds. Then, they were asked to walk after making arch building through raising arches with their feet by pulling the big toe toward the heel. Gait parameters such as geometry, center of pressure, maximum force, and maximum pressure were measured in normal and the arch building gait using a gait analysis system equipped with pressure sensor. Arch building gait demonstrated significantly (p<0.01) decreased forefoot maximum force but significantly (p=0.024) increased heel maximum force compared to normal gait. Maximum pressures of the midfoot and heel were also significantly (both p<0.01) increased. However, the maximum pressures of the forefoot were not significantly (p>0.05) different between the two conditions. Geometry, phase, and time parameters were not significantly (p>0.05) different between the two conditions, either. Although forefoot and midfoot maximum force were significantly decreased in arch building gait compared to those in normal gait, the maximum pressure of forefoot was not significantly changed, indicating decreased area of forefoot contact during arch building gait. The arch building gait moves the center of presser to the hind foot and redistributes the contact area, thus changing the distribution of maximum pressure.
유승돈 關東大學校 醫科大學 醫科學硏究所 2003 關東醫大學術誌 Vol.7 No.1
To evaluate the antimicrobial activity and the effects of wound healing of Ulmi cortex in the use of full thickness wound model in rat. Experiment 1: The solvent extracts of Ulmi cortex, which were extracted by using methanol and water, were prepared. The antimicrobial activities were investigated to each strain with the different contents. Methanol extracts showed the antimicrobial activity in the contents of Ulmi cortex 100 ㎍ and 1000 ㎍. Experiment 2: Six male Sprague-Dawley rats were used in the study. The rats were anesthetized with ketamine 90mg/kg. Circular, full-thickness wounds were made for each animal with 6mm dermatologic punch biopsy. Ulmi cortex extracts was applied topically three times a day in the study group(n=3), saline in the control group(n=3). On 4 day and 7 day, the wounds were photographed and excised. There was no clear histopathologic difference at day 4 in terms of cellular reaction and vascular proliferation. The reepithelialization ana the growth of granulation tissues were prominent in the study group at day 6. In this study, the Ulmi cortex extracts had antimicrobial activity and some benefit on wound heating.
뇌졸중 후 우울증의 간이정신상태검사와 전산화 인지기능 검사와의 상관관계
유승돈 關東大學校 醫科大學 醫科學硏究所 2003 關東醫大學術誌 Vol.7 No.2
The aims of this study were to know the prevalence of poststroke depression(PSD) and correlation between MMSE and the cognitive function. The severity of PSD were evaluated by Beck depression inventory(BDl), Korean form of Geriatric depression scale(KGDS),and Hamilton rating scale for depression(HRS-D) and the evaluation of cognitive impairments was based on Computerized Neuro-psychological Test(CNT), Mini-Mental Status Examination (MMSE). 16 patients with cerebral infarction(n=11) and cerebral hemorrhage(n=5) were participated in this study. These patients had a mean age of 61.7 ± 9.0. The location of stroke was right hemisphere in 7 subjects, left hemisphere in 7, and bilateral hemisphere in 2. PSD was diagnosed in 12 of 16 patients by BDI, in 11 of 13 by KGDS and in 4 of 13 by HRS-D. The domains of CNT to be significantly correlated with BDI, KGDS, and HRS-D were verbal and visual learning test, digit span test. But MMSE had no relation with BDI, KGDS, and HRS-D. We suggest the evaluation of CNT in post-stroke depression patients could be useful diagnostic method for the purpose of early management of PSD.