• 제목/요약/키워드: internal stability

검색결과 1,114건 처리시간 0.025초

워킹 훈련방법에 따른 복부 중심근육 활성도와 근 두께 변화 비교 (Comparison of Core Muscle Activity and Thickness According to Walking Training Method)

  • 이현주;김영태;이성주;김민석;김신회;태기식
    • 재활복지공학회논문지
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    • 제9권4호
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    • pp.301-308
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    • 2015
  • 본 연구는 정상 성인 20명을 대상으로 복부 안정화에 영향을 미치는 노르딕 워킹과 파워 워킹을 2주간 집중 시행한 후, 복부중심 근육(배속빗근, 배바깥빗근, 배가로근)의 활성도 및 두께, 그리고 복부 피하지방의 두께 변화를 비교하였다. 연구 결과, 근전도를 이용한 배속빗근과 배바깥빗근의 근활성값은 노르딕 워킹과 파워 워킹군 모두에서 훈련 후 높게 나타났으며, 특히 노르딕 워킹 훈련군의 경우 파워 워킹 훈련군에 비해 통계학적으로 유의하게 높은 근활성도의 변화를 보였다. 초음파를 이용한 배가로근과 배속빗근, 배바깥빗근의 두께는 노르딕 워킹 훈련군과 파워 워킹 훈련군 모두에서 통계학적으로 유의한 증가를 나타내었으나 군간 변화 차이는 없었다. 노르딕 워킹은 스틱을 이용하여 균형 안정감을 제공하며 상지와 하지의 큰 움직임을 통해 복부 안정화를 유도하는 효과적인 훈련방법으로써 다양한 재활운동의 형태로 적용하기에 유용할 것으로 여겨진다.

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아토피 피부염의 발생시긱별 변화에 대한 경락학적 해석 (The Meridian Interpretation of Atopic Dermatitis Phases)

  • 조용주;김진주
    • 한방안이비인후피부과학회지
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    • 제17권1호
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    • pp.1-15
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    • 2004
  • The different growth steps of human show the different energetic phenomenon such as the strength of triple energizer, the sale of extra meridian, and the stability of 12 meridians. So we have to understand the physiological and pathological phenomena on this point of view. Especially atopic dermatitis means the loss of adaptability under the lack of genuine energy. If you approach to this disease not with any perception of excess or deficiency of the human genuine energy but with simple symptom enumeration or partial diagnosis, it will be dangerous. So we must approach to this disease with more concrete and objective body-centered standard. Thus when we cure and diagnose infants with this disease, we should focus on stablizing the "Energy of Earth(土)" digestive ability, under the consideration of inducement to the enough "Byun-Jeung-Hu(變蒸候)" and the function of Triple Energizer. Through this process we can lead infants to the beginning equipment state(始全). Until 7 years old, we should stabilize the Link Vessel(維脈) by clarifying interior and exterior classification of Nutritive Element and Defensive Energy to control the child's energy of metal(金), water(水), wood(木) and fire(火) in the basis of the energy of earth(土). And also we should stabilize the Heel Vessel(?脈) through the Water and Fire complement each other to control the movements and to control sleep and awakening. Through this process, we can lead children to the basal equipment state(本全). After then, until adolescent phase, we should control 12 meridian and 8 extra meridian by leading vital function to be harmonized and prosperous on the basis of the meridian to reach the mature equipment state(旣全). Adult atopic dermatitis should be controlled through conciliation between meridian and internal organs by differentiating male from female.

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The Characteristics of Shoulder Muscles in Archery Athletes

  • Kim, Ri Na;Lee, Jin-Hyuck;Hong, Seok Ha;Jeon, Jin Ho;Jeong, Woong Kyo
    • Clinics in Shoulder and Elbow
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    • 제21권3호
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    • pp.145-150
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    • 2018
  • Background: This study evaluated the shoulder girdle muscle characteristics of elite archery athletes and provides suggestions for archery training programs. Methods: This study enrolled 15 cases of high level archery athletes (7 males, 8 females) and 30 cases of (15 males, 15 females) sex, age-matched, healthy, non-athletic individuals. We measured peak torques of flexion (FL), extension (EX), abduction (ABD), adduction (ADD), external rotation (ER) and internal rotation (IR) of both shoulders at an angular velocity of $30^{\circ}/sec$, $60^{\circ}/sec$, and $180^{\circ}/sec$. The peak torques and peak torque ratios of FL/EX, ABD/ADD, and ER/IR of the two groups were compared. Results: The archer group had a greater peak torque of IR and ADD, but only in the left shoulder (p<0.05). In the same group, both shoulders had greater peak torque of EX and lower peak torque of FL. The peak torque ratios of FL/EX of both shoulders were significantly lower in the archer group at all three angular velocities (p<0.05). The peak torque ratios of ABD/ADD were significantly greater in only the left shoulder of the archer group (p<0.05). Conclusions: The prominent characteristics of the shoulder girdle muscles of an elite archer are stronger adductor muscles of the bow shoulder and stronger extensors of both shoulders, as compared to healthy, non-athletic individuals. These muscle groups of the shoulder probably contribute a major role in maintaining the accuracy and stability during archery shooting. Hence, a training program that selectively enhances the adductor and extensor muscles could prove helpful in enhancing the archery skills of the athlete.

시간지연을 갖는 LonWorks/IP 가상 디바이스 네트워크에서 직류모터의 위치추종제어 (Tracking Position Control of DC Motor on LonWorks/IP Virtual Device Network with Time Delay)

  • 송기원
    • 전자공학회논문지SC
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    • 제43권4호
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    • pp.35-44
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    • 2006
  • LonWorks/IP 가상 디바이스 네트워크(VDN) 상의 전달지연은 실시간 분산제어 시스템의 성능과 안정성을 악화시킨다. LonWorks/IP VDN은 LonWorks 디바이스 네트워크와 IP( 데이터) 네트워크와의 통합네트워크이다. LonWorks/IP VDN 상에서의 서보제어를 수행할 경우 시간지연은 확률적인 특성을 강하게 나타낸다. 산업현장에 대한 예지보전을 위한 실시간 분산제어 환경에서 즉각적인 응답은 필수불가결한 요소이다. 그러므로 네트워킹 된 분산제어시스템의 안정성을 보장하고 성능을 개선하기 위해서는 시간에 따라 가변적인 불확실한 시간지연을 보상할 필요가 있다. 본 논문에서는 출력 되먹임 루프에 적절한 필터와 외란관측기를 이용한 제어기를 제안한다. 컴퓨터 모의실험을 통하여 제안된 제어기의 성능과 안정성이 Smith 예측기 기반의 내부모델제어기 (IMC)의 제어결과와 비교 제시된다. 제안된 제어기는 IMC 보다 안정성과 추종성능을 상당히 개선시킬 수 있으며 외란과 잡음에 강인한 특성을 갖는 것을 보인다. 그러므로 제안된 제어기는 가변적인 시간지연을 갖는 LonWorks/IP VDN 상에서 예지보전을 위한 실시간 분산제어에 매우 적합하다.

방사선사의 직무 스트레스 측정도구 개발을 위한 요인별 신뢰도 분석 (An Analysis of Reliability by Factors for Development of Job Stress Measurement Tools of Radiological Technologists)

  • 정홍량;손부순;임청환
    • 한국환경보건학회지
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    • 제32권2호
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    • pp.103-110
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    • 2006
  • The present study is designed to analyze reliability and validity of the instruments used to measure job stress of radiological technologists mainly by means of the questionnaires from 'Korean edition of NIOSH check list'. The subjects of this study are 890 radiological technologists active at 44 general hospitals in 16 provinces and cities across the country. The item-total reliability revealed that 10 factors in 6 are the major causes of stress in job life of radiological technologists. The measuring instrument proved to be valid with reliability coefficient of internal consistency by factors being more than 0.7. The factors found to be applicable herewith include limit and authority of job (0.73), cohesion within departments (0.86), resources control (0.81), mental requirements (0.85), job load (0.82), and job stability (0.72). When job autonomy item of causes are modified for proper use to radiological technologists, the measuring instruments are expected to show high reliability. It seems, however, necessary to develop a measuring instrument to analyze and use the validity of related measuring instruments since the reliability here was rated low, with statistical coefficients lower than 0.7 in such factors as job management (0.57), conflicts within departments (-1.13), sense of responsibility for patients (0.66) and usage of education (0.26). As this study was intended to examine reliability and validity of the concepts related to measurement of job stress on the part of radiological technologists, it nay not be proper to apply the results of this study to general use, but is advised to utilize them as basis for developing instruments to verify reliability and validity by comparing with and analyzing other measuring instruments.

응급구조사의 직무분석에 따른 업무개선과 삶의 질 향상을 위한 문제점 해결 방법에 관한 연구 (A study on problem solution method for works improvement and advancement quality of life on Job analysis of Emergency Medical Technicians)

  • 김재갑;고재문;김경완;정용태
    • 한국응급구조학회지
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    • 제11권1호
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    • pp.73-80
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    • 2007
  • This study is a descriptive survey research to know the levels of job satisfaction and influential factors for emergency medical technicians(EMT). This study sampled Level 1 and Level 2 Rescue Members from fire stations and EMT from general hospitals in the Gwangju City and JeollaNamdo area. Interviews for the 75 participants of this convenience sample were conducted for a two month period from July to September 2006. Data was collected on interviewing questionnaires. When looking at the results above internal factions were most influential towards satisfaction and self-responsibility, fulfillment, displays of Aptitude were highest for satisfaction. However, organizational factors were the lowest. There is a need for reform in promotion term periods and policy as well as promotion opportunities. Influential factors for job satisfaction were Role Performance Ability, Intentions for Changing Jobs, and Job Selection Motivation. Therefore, the more insufficient your ability to perform your job the less satisfied you are with it and the more fear you feel from experiences on the job the less satisfied you are with your job. Henceforth, there is a need to reform the educational programs offered to EMT for job training emphasizing job performance ability and the ability to judge for oneself on emergency situations, and reform the promotional system. Finally, there is a need for psychological consultation to offer stability to those after treating an emergency situation and encouragement for personal religion.

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쏘일네일-사면의 상호작용 효과 (Coupled Effect of Soil Nail/Slope Systems)

  • 정상섬;이진형;이선근
    • 한국지반공학회논문집
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    • 제21권2호
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    • pp.127-135
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    • 2005
  • 본 연구에서는 쏘일네일로 보강된 사면을 한계평형 해석법과 2차원 유한차분 해석을 수행하여 그 결과를 비를 분석하였다. 특히, 유한차분법을 이용한 FLAC 2D를 바탕으로 하는 커플링 해석에 주안점을 두었으며, FLAC을 이용하여 전단강도감소기법에 따른 보강사면의 안전율을 계산하기 위해 FLAC의 내장언어인 FISH를 이용하여 작성하였다. 커플링 해석에서 보일네일에 의한 안정화된 사면을 해석하기 위해 쏘일네일 거동과 사면안정을 동시에 고려하였다. 따라서 본 연구에서는 이 두 방법을 적용하여 쏘일네일의 사면내 설치위치, 설치각도, 설치간격 등에 따라 각각의 활동파괴면 및 안전율을 비판분석하였으며 강도정수 감소법을 적용한 해석기법의 적용성과 타당성 분석을 수행하였다.

불안장애 환자를 대상으로 한 한국판 상태불안척도의 요인분석 (Factor Analysis of the Korean Version of the State-Trait Anxiety Inventory n Patients with Anxiety Disorders)

  • 이건석;배활립;김대호
    • 대한불안의학회지
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    • 제4권2호
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    • pp.104-110
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    • 2008
  • Objective : Brief screening for anxiety symptoms in clinical practice can further facilitate the diagnosis and evaluation of anxiety disorders. This study examined the factorial validity of the Korean version of the State-Trait Inventory (STAI)-Form X, one of the most frequently used self-report questionnaires for anxiety. Methods : Data from the STAI and Beck Depression Inventory were obtained from a consecutive sample of 200 outpatients diagnosed with DSM-IV anxiety disorders at a psychiatric unit of a university hospital. The factor structures of the State and Trait Scales were assessed using exploratory factor analysis. Results : Three-factor components, including 'State anxiety present', 'State anxiety absent' and 'Selfconfidence', were extracted from the State Scale, explaining 59% of the total variance. A four-factor solution involving 'Trait anxiety and depression present', 'Trait anxiety and depression absent', 'Anxiety proneness' and 'Stability' (59% of total variance) was extracted from the Trait Scale. The internal consistency of the STAI and factors were satisfactory. There were significant correlations between depressive symptoms and factors of the STAI. Conclusion : The STAI-form X showed factorial validity for Korean patients with anxiety disorders. However, our finding that this anxiety scale also measures depressive symptoms should be interpreted with caution.

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법사회학적 접근을 통한 교원소청심사 사건수 및 인용율 경향 분석 (Law Sociological Analysis on Decision Tendency of Appeals for Teachers)

  • 엄상현
    • 한국콘텐츠학회논문지
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    • 제13권1호
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    • pp.199-209
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    • 2013
  • 이 연구는 법사회학적 체제 모형을 이론적 근거로 하여, 교원소청심사에 영향을 미치는 내 외적 환경의 변화를 확인하고, 그 결과로서 나타나는 소청사건수와 인용율의 시계열(정권단위별) 경향을 파악하고자 하였다. 환경요인으로서 외부의 사회적 영향 요인과 내부적 교육정책 요인의 특성은 평등성에서 효율성으로 변화되고 있고, 1991년부터 2011년까지 21년간 소청심사 사건수와 인용율 추이는 1990년대의 경우 낮은 폭의 증감을 보이다가 2000년대 들어 노무현 정부 출범 이후 사건 수는 급증하고 인용율은 급격히 감소하는 경향을 보이고 것으로 확인되었다. 민주화 등에 따른 교원의 권익보호 기대의 증가, 정치철학의 차이에 따른 교원의 역할 갈등이 표출되면서 정부와 교원 사이의 분쟁을 소청을 통해 해결하려는 경향이 증가하면서 소청제기 건수를 증대시켰고, 한편으로 교원에 대한 책무성 제고를 강조하는 교원정책, 학부모 단체 등 시민단체의 성장에 따른 교원에 대한 보다 엄격한 평가기준의 적용 요구가 인용율 하락에 직간접적으로 영향을 미친 것으로 짐작된다. 이러한 연구결과를 바탕으로 향후 교원소청심사제도 운영의 법적 안정성 보장을 위한 제도 개선의 필요성을 제언하였다.

노인의 무력감 측정도구 개발과 무력감 정도에 관한 연구 (A Study of Tool Development for Powerlessness of Elderly and the Degree of Elderly′s Powerlessness)

  • 정승은
    • 대한간호학회지
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    • 제29권6호
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    • pp.1294-1303
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    • 1999
  • The purpose of this study was to develop a tool to assess the powerlessness and to measure the powerlessness of elderly. From the result of pre-test, twenty seven items were finally selected to survey the elderly's powerlessness. The questionnaires on the elderly's powerlessness were drafted so that such tool may be evaluated in accordance with the four point Likert Scale. The number of subjects is 1,150 with ages of 60 years or more and who live in a large city, a small and middle-sized city and a rural area. The subjects of the test and retest were 85 elderlies. Collected data were analyzed by utilizing SAS program with Cronbach's $\alpha$ and Pearson's correlation, factor analysis method and known group techniques, descriptive statics, t-test and ANOVA. The results from this study were summarized below:1. When the factor analysis method was applied for validity, the tool for powerlessness of elderly was separated into 5 factors: loss of self-confidence to deal with physical, emotional, social aspects of life; expulsion by others from meaningful human relate; perception that life is meaningless and time passes quickly; falling behind young people; being rejected by other people, having no influence on others. An application of the known group technique showed a significant difference with the result of the degree of elderly's powerlessness tools developed by the two groups, with illness and without. 2. In testing reliability, it was found that coefficient of test-retest was .9435(P<.0001) when the test-retest method was used as a test of stability, and that the alpha coefficient of internal consistency was .9141 over all items within the tool of elderly's powerlessness 3. In powerlessness of elderly, total mean is 2.8493. And in factor of powerlessness, the highest factor is falling behind young people (M=3.1713), the lowest factor is loss of self- confidence to deal with physical, emotional, social aspects of life(M=2.6080). 4. The results from the test for the degree of powerlessness, according to the subject's demographic variables, showed that there were significant differences between age, sex, marital status, educational level, religion, possession of house, job, monthly pocket money, health status, illness and a place of residence.

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