• 제목/요약/키워드: Injury coefficient

검색결과 97건 처리시간 0.033초

아황산가스에 대한 주요 콩 품종간의 내성 비교 (Varietal Responses of Ten Soybean(Glycine max L.) to Sulfur Dioxide Tolerance : A Comparison of Foliar Injuries and Yields in Relation to Physiological Properties of Leaves.)

  • 박기선;구자형
    • 한국환경농학회지
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    • 제15권4호
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    • pp.455-463
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    • 1996
  • 아황산가스에 대한 주요 콩 품종들의 내성을 비교하고자 10개의 국내장려품종을 택하여 pot에 재배하고 밀폐된 chamber내에서 2.0ppm 의 아황산가스에 4시간 또는 8시간 처리하였다. 아울러 수량구성요소 및 수량에 미치는 영향을 조사하고, 가시피해율과 엽록소 함량, 효소활성 및 기공 저항성 등의 생리적 특성과 내성과의 상관관계를 조사한 결과는 다음과 같다. 1. 아황산가스에 대한 내성은 콩 품종간에 유의차가 인정되었으며, 4시간 처리시 가시피해율은 보광콩, 장수콩, 장경콩에서 낮았고 은하콩, 팔달콩에서 높은 피해를 보였다. 8시간 처리에서는 모든 품종에서 피해율이 높게 나타나 피해정도의 구분이 뚜렷하지 않았다. 2. 피해율과 생리적 특성과 관계는 4시간 처리에서 피해율과 SOD 활성간에 상관$(r=-0.611^{\ast})$이 인정되었으며, 엽록소 함량, POD 활성, 기공저항성등은 내성과의 상관이 인정되지 않았다. 3. 아황산가스에 의한 피해는 경장(莖長), 절간수(節稈數) 및 100립중에는 큰 영향을 미치지 않았으나, 건물중, 협수(莢數) 및 총립수에는 영향이 컸다. 수량 감수율은 보광콩, 장경콩에서 적었고 은하콩, 팔달콩에서 크게 나타났다. 4. 가시피해율(可視被害率)과 수량과의 관계는 피해율이 가장 컸던 팔달콩에서는 $Y=-1.17X+98.82^{\ast\ast}$, 피해율이 가장 적었던 보광콩에서는 Y=-0.165X+94.93의 회귀를 보였다.

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가상현실 기반의 일상생활활동 훈련이 외상성 뇌손상 환자의 일상생활활동 및 재활동기에 미치는 효과 : 예비연구 (Effects of Virtual Reality-Based Activities of Daily Living Training on Activities of Daily Living and Rehabilitative Motivation in Patients With Traumatic Brain Injury: A Pilot Study)

  • 문종훈;전민재
    • 재활치료과학
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    • 제8권4호
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    • pp.41-51
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    • 2019
  • 목적 : 본 예비 연구는 가상현실 기반의 일상생활활동 훈련이 외상성 뇌손상 환자의 일상생활활동 및 재활동기에 미치는 영향을 알아보고자 한다. 연구방법 : 본 연구는 7명의 외상성 뇌손상 환자를 대상으로 중재 전-후 설계를 수행하였다. 대상자들은 하루 30분, 주 2~3회, 4주간 가상현실 기반의 일상생활활동 훈련을 수행하였다. 중재 전과 후로 평가를 수행하였다. 측정은 수정바델지수, 기능적 독립척도(인지), 의지 설문지가 평가되었다. 중재 전과 후의 변화는 윌콕슨 부호순위 검정으로 분석하였고, 상관관계는 스피어만 상관분석을 이용하였다. 결과 : 중재 후, 외상성 뇌손상 환자는 한국판 수정바델지수에서 유의한 향상을 보였다(p<.05). 기능적 독립척도(인지)와 재활동기는 유의한 변화가 없었다(p>.05). 기능적 독립척도(인지)는 재활동기와 유의한 상관이 있었다(p<.05, r=.755). 기능적 독립척도(인지)의 사회인지영역은 재활동기와 유의한 상관이 있었다(p<.05, r=826). 결론 : 가상현실 기반의 일상생활활동 훈련은 일상생활활동 수행능력을 향상시킬 수 있으나, 사회인지와 재활동기의 개선여부가 가능한지에 대해서는 연구가 더 필요하다.

A Comprehensive Analysis of the Association of Psoas and Masseter Muscles with Traumatic Brain Injury Using Computed Tomography Anthropometry

  • Cho, Hang Joo;Hwang, Yunsup;Yang, Seiyun;Kim, Maru
    • Journal of Korean Neurosurgical Society
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    • 제64권6호
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    • pp.950-956
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    • 2021
  • Objective : Psoas and masseter muscles are known markers of sarcopenia. However, the relative superiority of either muscle as a marker is unclear. Therefore, this study analyzed the two muscles in patients with a prognosis of traumatic brain injury (TBI). Methods : Patients with TBI visiting a regional trauma center between January 2017 and December 2018 were selected, and their medical records were reviewed. TBI patients with an abbreviated injury score (AIS) of 4 or 5 were selected. Patients with an AIS of 4 or 5 at the chest, abdomen, and extremity were excluded. Patients with a hospital stay of 1 to 2 days were excluded. Both muscle areas were measured based on the initial computed tomography. The psoas muscle index (PMI) and the masseter muscle index (MMI) were calculated by dividing both muscle areas by height in meters squared (cm2/m2). These muscle parameters along with other medical information were used to analyze mortality and the Glasgow outcome scale (GOS). Results : A total of 179 patients, including 147 males (82.1%), were analyzed statistically. The mean patient age was 58.0 years. The mortality rate was 16.8% (30 patients). The mean GOS score was 3.7. Analysis was performed to identify the parameters associated with mortality, which was a qualitative study outcome. The psoas muscle area (16.9 vs. 14.4 cm2, p=0.028) and PMI (5.9 vs. 5.1 cm2/m2, p=0.004) showed statistical differences between the groups. The PMI was also statistically significant as a risk factor for mortality in logistic regression analysis (p=0.023; odds ratio, 0.715; 95% confidence interval, 0.535-0.954). Quantitative analyses were performed with the GOS scores. Bivariate correlation analysis showed a statistically significant correlation between PMI and GOS scores (correlation coefficient, 0.168; p=0.003). PMI (p=0.004, variation inflation factor 1.001) was significant in multiple regression analysis. The masseter muscle area and MMI did not show significance in the study. Conclusion : Larger PMI was associated with statistically significant improved survival and GOS scores, indicating its performance as a superior prognostic marker. Further analyses involving a larger number of patients, additional parameters, and more precise settings would yield a better understanding of sarcopenia and TBI.

Correlations Among Objective Measurements of Spasticity in Patients With Brain Lesions

  • Kim, Yong-Wook
    • 한국전문물리치료학회지
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    • 제14권4호
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    • pp.7-13
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    • 2007
  • The purpose of this study was to investigate correlations among objective measurements of spasticity in patients with brain lesions. Thirty-two stroke and traumatic brain injury subjects participated in the study. Spasticity was quantified using the knee first flexion angle, relaxation index obtained from a pendulum drop test, and the amplitude of a knee tendon reflex test. Pearson's product correlation coefficient was used to examine relationships among these measurements of spasticity. There was a significant positive correlation between the relaxation index and knee first flexion angle in patients with brain lesions (r=.895, p<.01). There was also significant negative correlation between the amplitude of knee tendon reflex and relaxation index (r=-.612, p<.01), and between amplitude and knee first flexion angle (r=-.537, p<.01). Thus, it is possible to use the knee first flexion angle as an objective measure of spasticity, rather than relaxation index, which is more complicated to obtain. Further studies are needed to explore the effects of functional improvement and long-lasting carryover effects of spasticity using a simple objective measure such as the knee first flexion angle from a pendulum test.

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컴퓨터 타자속도에서 시지각 및 손 민첩성의 상관성 (Relations of Visual Perception and Hand Dexterity using Computer Keyboard)

  • 노효련;강신욱
    • 한국임상보건과학회지
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    • 제2권4호
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    • pp.209-215
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    • 2014
  • Purpose. The purpose of this study was to determine the relationship between typing speed required dexterity of hand and visual perception. Method. We studied 50 people who were not experience of hand injury in K university. Typing speed, hand dexterity and visual perception were measured using purdue pegboard test, MVPT-3 and 'Cheongsando' in Hancom typing program. Results analysis was used Pearson correlation coefficient of the SPSS 10.0. Result. In this study, the typing speed showed a positive correlation with the figure ground, but there was no correlation visual closure and visual discrimination. Conclusion. Typing speed was correlated with hand dexterity and figure ground. Therefore, utilizing a computer keyboard at treatment can be expected to enhance hand function and visual perception.

Hypertensive Encephalopathy with Reversible Brainstem Edema

  • Lee, Sungjoon;Cho, Byung-Kyu;Kim, Hoon
    • Journal of Korean Neurosurgical Society
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    • 제54권2호
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    • pp.139-141
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    • 2013
  • Presented here is a 36-year-old male with arterial hypertension who developed brainstem edema and intracranial hemorrhage. Magnetic resonance scan revealed diffuse brainstem hyperintensity in T2-weighted and fluid-attenuated inversion-recovery images, with an increase in apparent diffusion coefficient values. After a reduction in blood pressure, rapid resolution of the brainstem edema was observed on follow-up. The patient's condition was thus interpreted as hypertensive brainstem encephalopathy. While many consider this a vasogenic phenomenon, induced by sudden, severe hypertension, the precise mechanism remains unclear. Prompt recognition and aggressive antihypertensive treatment in such patients are essential to prevent permanent or life-threatening neurologic injury.

리듬체조 선수들의 스트레스가 스포츠 손상에 미치는 영향 (The Effect of Stress on Sports Injuries in Rhythmic Gymnastics Athletes)

  • 김찬우;박기준
    • 대한통합의학회지
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    • 제8권2호
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    • pp.159-168
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    • 2020
  • Purpose : This study was conducted to investigate the effects of stress on sports injuries that occur to the university rhythmic gymnasts in Korea. Methods : All general characteristics of rhythmic gymnasts were analyzed as descriptive statistics and, the incidence of sports injuries was analyzed. To examine the differences in the incidence of sports injuries between the group with upper-level and lower-level stress scores, the independent sample t-test was carried out. For the correlation between number of sports injuries and stress scores, Pearson correlation coefficient was used. All statistical analyses were carried out using the SPSS version 24.0 with the level of significance set to α=.05. Results : The mean stress score of university rhythmic gymnasts was 3.68±1.31. The incidence of sports injuries was 57 cases in total, and per student, 2.28±0.61 cases occurred on average. The incidence of sports injuries differed significantly between the group with upper-level and lower-level stress scores. In addition, significant differences were found in the analysis of the correlation between number of sports injuries and stress scores, with regard to the psychological and emotional stress and the social stress against overall variables. Conclusion : The incidence of sports injuries was higher for the gymnasts with higher stress scores. In addition, correlation were found in the analysis of the between number of sports injuries and stress scores, emotional and psychological stress and the social stress.

거골하 관절 현수 테이핑의 생체 역학적 효과 분석 (Analysis of Biomechanical Effect of the Subtalar Sling Ankle Taping)

  • 최문석;전혜선;김영호
    • 한국운동역학회지
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    • 제17권1호
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    • pp.135-144
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    • 2007
  • The purpose of this study was to identify the effect of the subtalar sling ankle taping, by measuring changes in peak plantar pressure and subtalar angle during jump landing and walking in healthy subjects with subtalar sling ankle taping applied of the ankle joint. Fifty healthy subjects(8 males and 7 female, aged 22 to 25) were randomly divided into a participated in this study. They were free of musculoskeletal injury and neurologic deficit in lower extremity. The subjects were asked to perform 5M walking and single leg jump landing by under the guidance of physical therapists. Subtalar motions were typically measured as the angle made between the posterior aspect of the calcaneous and the posterior aspect of the lower leg during walking with taping or not. This measurement were made using a video system (30Hz sampling rate, rectified 60 Hz sampling rate). At the same time, peak lateral and vertical pressure were investigated using pressure distribution platforms(MatScan system) under foot during walking and single leg jump landing with taping or not. Statistical analysis was done by paired t-test and intraclass correlation coefficient [ICC(3.1)], using software SPSS. We have recently demonstrated significantly altered patterns of subtalr joint and peak plantar pressure when applied subtalar sling ankle taping(p<.05). Inversion angle of subtalar joint significantly decreased with taping(p<.05). The result suggest that pressure patterns observed in subjects are likely to result due to significant decrease in stress on ankle joint structures during jump landing and walking. Also, the result that the subtalar sling ankle taping procedure provides greater restiction of motion associated with ankle inversion. However, this study involved asymptomatic subjects without history of ankle inversion injury, further research is needed to assess the motion restraining effect of the subtalar sling ankle taping in subjects with lateral ankle instability.

배롱나무와 피라칸사 겨울 휴면지의 내한성 평가 (Cold Tolerance Assessment of Lagerstroemia indica and Pyracantha angustifolia with Dormant Branches)

  • 신창섭
    • 한국조경학회지
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    • 제39권6호
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    • pp.118-125
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    • 2011
  • 배롱나무와 피라칸사의 내한성과 지역별 최저기온을 분석하여 동해에 대한 위험을 검증하고자 하였다. 저온 처리한 시료의 내한성은 전기전도도의 측정과 형성층의 갈변도 관찰로 평가하였다. 배롱나무는 $-17.1^{\circ}C$ 이하에서, 피라칸사는 $-18.9^{\circ}C$ 이하에서 동해 피해가 클 것으로 분석되었다. 지난 45년간 최저기온이 $-17.1^{\circ}C$ 이하로 하강된 횟수는 대전 총 7회 중 1975년도 이후에는 1회, 청주 총 55회, 수원 총 72회로 기록되고 있다. $-18.9^{\circ}C$ 이하로 기온이 하강된 횟수는 청주 45회, 수원 32회로 나타났으나, 1991년 이후에는 하강되지 않았다. 또한 위도가 높아질수록 최저기온 상승계수는 크게 나타났다. 따라서 중부지역에 식재된 배롱나무와 피라칸사는 동절기 간헐적으로 나타날 수 있는 기온 강하에 의한 부분적인 동해 피해가 예상되기 때문에 위험할 수 있으며, 최저기온의 상승 추세에 따라 동해 피해 위험은 점진적으로 감소될 것이다.

최근의 사망패턴에 관한 고찰 (Recent Pattern of Mortality in Korea)

  • 최인현;변용찬
    • 한국인구학
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    • 제8권2호
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    • pp.46-67
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    • 1985
  • In this paper, an attempt has been made to examine the pattern of mortality in Korea during 1970~80. By applying the age-sex specific mortality rates quoted from 1978~79 life tables for Korea published by NBOS, EPB to those of the West pattern of regional model life tables and the far eastern pattern of model life tables for developing countries, life expectancy at birth were calculated. Also the author reviewed the trends of death rates, life expectancy and cause of death using vital registration data and other materials. Summarized results are as follows; 1. Crude death rates in Korea was reduced to one fifth in the 1983 compared to that in 1920's. Life expectancy also improved to almost double in 1985 compared to 1920's. But the difference in the life expectancy between male and female increased during that period and it was recorded as 6.4 years in 1985. This discrepancy was mainly due to the different tempo of decreasing in mortality level by sex, particularly, for the age 40 and above. 2. For the pattern of mortality in Korea, it showed that female mortality could accounted closer to the West pattern model life tables. There were high similarity between actual pattern prevalent in Korea and West pattern. And its coefficient of variance was also very low. However for the case of male, it was difficult to find the exact model life tables for explaining the actual situation on the male mortality pattern which means exist considerable dissimilarity in older ages. The Far eastern pattern of U.N. model life tables show better results than West pattern, however, the deviation of the pattern to actual was severe. Also in Far eastern pattern, high coefficient of variance was existed. Furthermore it was found in the paper that the mortality level of Korean male for the age 40 and above were much higher than that of Far eastern pattern which was reflected the high mortality of the male adult in Far east region. 3. The analysis of cause of death showed that circulatory disease such as cerebrovascular disease and hypertensive disease accounted for the leading cause of death in Korea for the age 40 and above. There should he paid special attention to chronic retrogressive diseases for the older age groups. For younger age groups, injury and poisoning were reported as important cause of death.

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