• 제목/요약/키워드: Facilitation

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회귀억제와 촉진의 시간적, 공간적 속성: ERP 연구 (Temporal/Regional properties of inhibition/facilitation of return: ERP study)

  • 서준호;이형철
    • 인지과학
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    • 제20권1호
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    • pp.29-49
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    • 2009
  • 본 연구의 목적은 Tanaka와 Shimojo의 제안처럼 회귀억제와 회귀촉진이 각각 두정엽 및 측두엽 경로의 정보처리와 관련성이 있는지를 검증하고 동시에 회귀억제와 회귀촉진 현상이 정보처리의 어느 단계에서 발생하는지 사건관련전위 기법을 이용하여 규명하는 것이었다. 이전 시행과 현재 시행에서 표적이 제시되는 위치의 일치성 여부에 따라서 일치조건과 불일치조건을 구별하고 탐지과제, 위치 변별과제, 색 변별과제, 방위 변별과제 수행시의 피험자의 반응시간과 사건관련전위를 측정하였다. 탐지과제와 위치 변별과제 수행 시 일치조건과 불일치조건 사이의 유의미한 반응시간 차이를 발견하지는 못하였다. 하지만, 색 변별과제와 방위 변별과제 수행 시 회귀촉진 현상을 발견하였다. 위치 변별과제 수행 시 Pz영역에서 일치조건과 불일치조건 사이의 유의미한 사건관련전위 차이를 발견하였으며 색 변별과제 과제 수행 시 T8 영역에서 두 조건 사이의 유의미한 사건관련 전위 차이를 발견하였고, 방위 변별과제 수행 시 T7/T8 영역에서 두 조건 사이의 유의미한 경향성을 발견하였다. 사건관련 전위의 차이는 특히 반응시간 전 단계에서 발견되었다. 이와 같은 실험결과는 제한적이기는 하지만 회귀억제와 회귀촉진이 정보처리 후기 단계인 반응 전 단계에서 각각 두정엽과 측두엽에서 발생할 가능성을 시사한다.

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닫힌사슬과 열린사슬 자세에서 편측상지에 적용된 PNF가 양측 하지의 근 활성도에 미치는 영향 (Effect of Close kinetic chain and Open kinetic chain Position on Proprioceptive Neuromuscular Facilitation Applied to the Unilateral Upper Extremity on the Muscle Activation of Lower Extremity)

  • 한향완;김상수
    • PNF and Movement
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    • 제7권3호
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    • pp.17-27
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    • 2009
  • The purpose of this study was to investigate the effect of close kinetic chain(CKC) and open kinetic chain(OKC) posion on proprioceptive neuromuscular facilitation applied to the unilateral upper extremity on the muscle activation of lower extremity. All subjects were randomly assigned to two groups: open kinetic chain group(n=5),closed kinetic chain group(n=5). All participants were PNF patterns applied on the unilateral upper extremity in all subjects were the kinetic chain(CKC) and open kinetic chain(OKC) posion on flexion/abduction/external rotation. The hold and approximation techniques for the irradiation were applied to end range. All measurements for each subject took the following tests: pre-test, post - test in 4weeks, post-testin 8weeks. EMG data was collected from the vastus medialis, tibialis anterior, biceps femoris, and gastrocnemius muscle of both lower extreamity using surface EMG system, Each EMG value in individual muscle was normalized for maximal voluntary contraction. The data were analyzed using Two-way analysis of variance(ANOVA) with repeated measures to determine the statistical significances. The results of this study are summarized as follows. First, during for close kinetic chain(CKC) and open kinetic chain(OKC) posion on PNF pattern application, all of the %MVIC values of close kinetic chain and open kinetic chain posion increased sign ificantly compared(p<0.05). Second, The close kinetic chain(CKC) and open kinetic chain(OKC) posion on PNF pattern application was significantly increased with in the intervention period(p<.05). Third, there was a no significant open kinetic chain posion on PNF pattern application of sing muscle group with in the intervention period.(p<0.05) there was a significant close kinetic chain posion on PNF pattern application of sing muscle group with with in the intervention period(p<0.05). Forth, interaction of the exercise position and muscle was also significant. Post-hoc tests revealed that the activation levels of vastus medialis muscle and tibialis anterior muscle was higher in the closed kinetic chain position(p<.05). that the activation levels of vastus medialis and gastrocnemius muscle was higher in the open kinetic chain position(p<.05). In conclusion, it was found that the application of PNF patterns to the unilateral upper extremity effect on the muscle activation of lower extremity and both open kinetic chain exercise and closed kinetic chain exercise was significantly increased muscle activity. Further studies are needed to analyzed long term effects and subjects resulting from these changed.

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A Study on the Effect of Proprioceptive Neuromuscular Facilitation Training by Meta-analysis -Focused on Balance and Gait Ability in Patients with Storke

  • Jeun, Young-Ju
    • 한국컴퓨터정보학회논문지
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    • 제27권7호
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    • pp.145-152
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    • 2022
  • 뇌졸중은 균형 장애와 보행능력에도 직접적인 영향을 미친다. 본 연구는 고유수용성신경근촉진법이 뇌졸중 환자의 균형 및 보행에 미치는 영향 연구를 목적으로 한다. 따라서 뇌졸중 환자에게 고유수용성 신경근촉진법을 적용하여 균형과 보행 능력을 평가하는 모든 무작위 배정 연구를 포함하였다. 본 연구는 메타분석에서 있어서 꼭 필요한 프리즈마 가이드 라인을 준수하였다. Cochrane library, CINAHL, Pubmed에서 2021년 11월까지 발행된 연구를 포함하였고, 그 연구들은 고유수용성신경근촉진법을 적용한 무작위 배정 연구들이다. 데이터베이스에서 검색된 1091개의 논문 중 18개의 연구를 메타분석을 시행하였고, 메타분석은 R 프로젝트 4.0.2를 사용하여 시행하였다. 본 연구의 전체 효과 크기는 0.56으로 중간 정도로, 균형과 보행에 관한 척도에 대한 효과 크기도 중간정도 산출되었다. 무작위 배정 정도를 나타내는 페드로 점수는 18점 만점에서 6.63으로 비뚤림 위험이 낮은 것으로 나타났다. 이러한 결과는 PNF가 뇌졸중 환자의 균형 및 보행을 향상시키는 효과적인 중재 방법임을 알 수 있다.

Trade Facilitation for the Products of the Industry 4.0: The case of Customs Classification of Drone

  • Yi, Ji-Soo;Moon, So-Young
    • Journal of Korea Trade
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    • 제23권8호
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    • pp.110-131
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    • 2019
  • Purpose - This paper investigates the implications for facilitating trade in the products of Industry 4.0. To identify the issues caused by the conflicts of policy objectives such as applying the tariff concession under the ITA and imposing the export control, by exploring the case of classification of drones. Design/methodology - We adopted a single case study method to gain a deeper understanding of the complex and multifaceted issues of Customs classification in the context of facilitating trade in the products of Industry 4.0. This study employs the case of drones to explore how these issues of Customs classification affect trade facilitation. We ensured the internal validity of the study by confirming the pattern of the results with the existing theories. Findings - Our main findings can be summarised as follows: the intrinsic nature of the products that converge several technologies causes issues in the classification. The inconsistency in product classification delays customs clearance by hindering the Customs risk-management system that pinpoints products subject to controls. To address the issues, therefore, we proposed fundamental reforms of Customs to empower themselves with management roles. Facilitating trade in the products of Industry 4.0 requires more enhanced Customs capability. Therefore, the reforms should include comprehensive capacity-building activities, such as changes in staff-trainings, promotion system, organisation and culture. Customs also need roles in robust designing of cooperative systems to compensate for the lacks of controls and to ensure concrete risk management for expedited Customs procedures. As well, by equipping the Single Window of Customs with crucial control functions of other ministries, Customs need to support the cooperation. The role of harmonising various preaudits of other ministries with its own is another essential role that ensures predictability of clearance procedure. Originality/value - There are scanty studies in the field of knowledge about what obstacles exist and what solution is available in the course of transforming to 'Industry 4.0'. In filling out the gap of knowledge, this paper is of academic significance in that it applies the research theory on trade facilitation for the specific cases of classification of the product of Industry 4.0 to verify its effectiveness and to extend the subject of the studies to the scope of Industry 4.0. It also has practical significance in that the results have provided implications for reforms of Customs procedures to facilitate trade in the products of Industry 4.0.

PNF를 이용한 슬괵근 신장 운동이 요부 움직임과 유연성에 미치는 영향 (The effects of PNF hamstring stretching on lower back movement and flexibility)

  • 최원제;김영중;김윤환;장용수;손경현
    • PNF and Movement
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    • 제8권3호
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    • pp.55-61
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    • 2010
  • Purpose : The purpose of this study was to find out which method was efficient to enhance the flexibility of lower back between PNF(proprioceptive neuromuscular facilitation) and hamstring stretching. Method : subject were 20 young people between the ages 20 and 25. subjects were randomly assigned to one of 2groups; PNF(n=10), static(n=10). respective group received the same stretching does of 3days per week for 4weeks. Trunk flexion forward a measuring instrument and tapeline were performed to measurement the flexibility of lower back at different times(before starting the exercise, 4weeks after starting). Results : The results of the study were as follows: The lower back flexibility was increased significantly in PNF groups. PNF, static groups showed meaningful defference in trunk flexion forward. The finding indicate that PNF may be preferred technique for improving flexibility and that flexibility training results in on increased consistency of flexibility scores.

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도시 노인의 성별 및 연령별 기초신체활동 측정 평가 (Assessment of Basic Physical Activity According to Sex and Age Groups in Elderly Groups in an Urban Community)

  • 김소민;김대경
    • PNF and Movement
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    • 제16권2호
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    • pp.239-248
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    • 2018
  • Purpose: This study aimed to examine the elderly physical fitness test for elderly people living in urban areas and to evaluate the physical fitness level according to gender and age groups. Methods: The subjects were 180 elderly people aged 65 and over living in urban areas. The elderly people were classified into early old age, middle old age, and advanced old age groups. Five items of the physical fitness test for the elderly (arm curl, chair stand, 2 min step test, back scratch, and chair sit and reach). Results: In analyzing the average of each item by gender and age, a significant difference was found in the results of each item as age increased in all sports, but no difference was observed according to gender except dumbbell lifting. Conclusion: Although the physical fitness level of all ages decreased from early age to late age, the difference in physical fitness according to gender was not significant except the arm curl test. The results of this study can be used as basic data for a new "age-specific exercise program" for the elderly.

PI(Process Innovation)에 기반한 인천국제공항의 여객 프로세스 간소화에 관한 연구 (A Study on Facilitation Based on PI(Process Innovation) At IIAC(Incheon International Airport Corporation))

  • 이동욱;신형민;홍현표
    • 디지털산업정보학회논문지
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    • 제5권1호
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    • pp.107-126
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    • 2009
  • An Airport is important space and even stands for the country because diverse people from other countries use a variety of facilities in the gateway to the country. Therefore, It is urgent for those people to increase efficiency and convenience of its usage and also. It's worth accumulating those know-how and technologies. In this situation, Incheon International Airport aiming to be a hub of north-east Asia need to focus more on restructuring general process of passenger's travel based on PI perspectives then simply improving a process of passenger's travel and have been trying to realize the process based on Innovation perspectives with following precess innovation consisting 5 steps And to conclude, this study will help Incheon International Airport to be innovative in a system of passenger's travel service related to a utility of airport and then achieve a hub Airport of North-East Asia.