• Smart Structures and Systems
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• 제18권6호
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• pp.1169-1188
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• 2016

Real-time substructuring techniques are currently an advanced experimental method for testing large size specimens in the laboratory. In dynamic substructuring, the whole tested system is split into two linked parts, the part of particular interest or nonlinearity, which is tested physically, and the remanding part which is tested numerically. To achieve near-perfect synchronization of the interface response between the physical specimen and the numerical model, a good controller is needed to compensate for transfer system dynamics, nonlinearities, uncertainties and time-varying parameters within the physical substructures. This paper presents the substructuring approach and control performance of the linear and the adaptive controllers for testing the dynamic characteristics of soil-structure-interaction system (SSI). This is difficult to emulate as an entire system in the laboratory because of the size and power supply limitations of the experimental facilities. A modified linear substructuring controller (MLSC) is proposed to replace the linear substructuring controller (LSC).The MLSC doesn't require the accurate mathematical model of the physical structure that is required by the LSC. The effects of parameter identification errors of physical structure and the shaking table on the control performance of the MLSC are analysed. An adaptive controller was designed to compensate for the errors from the simplification of the physical model in the MLSC, and from parameter identification errors. Comparative simulation and experimental tests were then performed to evaluate the performance of the MLSC and the adaptive controller.

• 대한물리의학회지
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• 제7권2호
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• pp.173-182
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• 2012

Purpose : This study was investigated the effect of lower extremity muscle activity during open kinetic chain exercise (OKC) and closed kinetic exercise (CKC) in normal young adults. Methods : The participants were consisted of forty-one. All subjects were randomly assigned to two groups of open kinetic chain exercise group (n=21) and closed kinetic chain exercise group(n=20). It was perform 3 sets, 3 times per week for 6 weeks both open kinetic chain exercise group and closed kinetic chain exercise group. Subjects were assessed for each subject took pre-test, post-test in 2 weeks, post-test in 4 weeks, post-test in 6 weeks measurement the surface EMG data for vastus medialis and lateralis, lateral and medial hamstring, lateral and medial gastrocnemius, tibialis anterior. Results : The vastus medialis and lateralis muscle activity was significantly increased within the intervention period both group(p<.05). The lateral and medial part of hamstring muscle activity was significantly increased with in the intervention period(p<.05). The tibialis anterior muscle activity of open kinetic chain exercise group and closed kinetic chain exercise group was significantly increased in the intervention period(p<.05). The lateral and medial part of gastrocnemius muscle activity of open kinetic chain exercise group and closed kinetic chain exercise group was significantly increased with in the intervention period(p<.05). Conclusion : It was found that 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. these exercises can be selectively adapted not only as treatment exercise for patients but also as preventive exercise for normal person to improve balancing ability by conducting proper amount of exercise for each individual's condition and stage.

• 한국전문물리치료학회지
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• 제17권2호
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• pp.33-42
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• 2010

The aim of this study was to investigate correlations of the Trunk Control Test (TCT), Postural Assessment Scale for Stroke (PASS-TC), and Trunk Impairment Scale (TIS) and to compare the TCT, PASS-TC, TIS and its subscales in relation to balance, gait and functional performance ability after stroke. Sixty-two stroke patients attending a rehabilitation program participated in the study. Trunk control was measured with the use of TCT, PASS-TC, TIS balance (Berg Balance scale; BSS), gait ability (10 m walk test), functional performance ability (Tuned Up and Go Test TUG) and the mobility part of the Modified Barthel index (MBI), Fugl Meyer-Upper/Lower Extremity ($FM-U{\cdot}L/E$), The scatter-plot (correlation coefficient) was composed for the total scores of the TCT, PASS-TC, and TIS. The multiple regression analysis was performed to evaluate the impact of trunk control on balance, gait, and functional performance ability. Twenty eight participants (45.2%) and twenty participants (32.3%) obtained the maximum score on the TCT and PASS-TC respectively; no subject reached the maximum score on the Trunk Impairment Scale. There were significant correlations between the TIS and TCT (r=.38, p<.01), PASS-TC (r=.30, p<.05), TCT and PASS-TC (r=.59, p<.01). Stepwise multiple regression analysis showed that the BBS score (${\beta}=.420{\sim}.832$) had slightly more power in predicting trunk control than the $FM-U{\cdot}L/E$. TIS-dynamic sitting balance, TUG and the MBI-mobility part. This study 치early indicates that trunk control is still impaired in stroke patients. Measures of trunk control were significantly related with values of balance, gait and functional performance ability. The results imply that management of trunk rehabilitation after stroke should be emphasized.

• 한국조경학회지
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• 제31권3호
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• pp.1-16
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• 2003

The ultimate goal of this research is to establish the movement rights of people with physical disabilities. To achieve this goal, the authors have investigated the regulation and restrictions of physical facilities to guarantee the movement rights and investigated how well these facilities were constructed. The authors then have analyzed and compared the results. The purposes of this research are as follows. First, the authors investigated and analyzed the present conditions of selected public facilities to propose improvement measures for the disabled, pregnant and seniors so that they could actively participate in cultural activities as normal people do. Second, the designs resulting from this research are provided so as to be helpful to disabled people in everyday life, which is different from previously conducted research. Third, the authors have selected facilities with outdoor areas to differentiate the results from those reported recently through research conducted on indoor buildings. The final step of this research is to provide basic design data on outdoor areas to establish true movement rights for the disabled. According to these research findings, the shortest moving distance cannot be guaranteed only by establishing facilities that follow the Article 3 law about guarantee of convenience improvement for the disabled. If the movement path is not regulated, the facility standards may not exist in one part and the part itself may become obscured and the distance could become longer than necessary. Accordingly, for real movement rights the movement path should be guaranteed not to be violated by other obstacles. The results of this study offer convenience when moving within the outdoor space of cultural facilities by providing direct information for the disabled. The value of this study is that it is the first study on movement rights and movement paths for people with physical disabilities.

• 한국운동역학회지
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• 제24권2호
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• pp.103-109
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• 2014

The study aimed to examine the effect of a corrective exercise on Cobb's angle and static and dynamic foot pressure in patients with kyphosis. Patients with kyphosis participated in a 12 weeks of corrective exercise program. Participants were randomly assigned to a corrective exercise group (n=17) and a control group (n=17), and corrective exercise for 60 minutes are executed every 3 times a week. All data were analyzed by two-way repeated measured ANOVA. Statistical level was set up as a=.05. As a result, Cobb's angle had significantly effects according to time and groups. Anterior and posterior part of static foot pressure showed significant effects by time but not by groups. Whereas left and right part of static foot pressure showed no significant effects. And dynamic foot pressure showed significant effects by time but not by group also. In conclusion, it is approved that this exercise was helpful on abnormal posture arrangement and improvement of unbalanced muscle capability.

• 정보교육학회논문지
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• 제25권4호
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• pp.621-632
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• 2021

본 연구는 예비교사를 대상으로 피지컬 컴퓨팅 교육을 온라인 환경에서 실행하기 위한 교육과정의 개발과 적용에 관한 연구이다. 먼저 ADDIE 교수설계 모형에 따라 15주 과정의 소프트웨어와 피지컬 컴퓨팅 교육과정을 설계하였다. 온라인에서 사용할 수 있는 도구로 스마트폰 기반의 EPL인 포켓코드와 그에 포함된 각종 센서를 사용한 프로그램을 주제로 교육을 실시하였다. 프로그램 적용 결과 예비교사들의 교수효능감은 개인효능감, 교수학적 지식, 테크놀로지 교수내용 지식, 결과 기대, 학생에 대한 신념이 모두 유의미하게 향상되었다. 소프트웨어 태도 부분은 소프트웨어 흥미와 소프트웨어의 가치 부분이 유의미하게 증대되었고 소프트웨어 공학자에 대한 인식은 변화가 없었다. 일반적으로 피지컬 컴퓨팅의 경우 조작 활동이 많이 들어가 온라인 환경에서 실행하기 어렵다. 해당 연구와 같이 비대면 환경 또는 블렌디드 환경에서 효율적인 교육을 지속할 수 있는 다양한 교육과정이 개발되길 기대한다.

• The Journal of Korean Physical Therapy
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• 제10권1호
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• pp.173-179
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• 1998

To overcome obstacles and to attain the goals of practical training for the students in the department of physical therapy it is necessary to effective an effective system for practical training. And to develop a good System it is essential to monitor the response of the students in practical training of physical therapy and to gather fundamental data. The author made up a questionnaire to the students in the department of physical therapy after the end of practical training course. The questionnaire consisted of 13 questionnaire for the general characterisitcs of the students, 19 questions for the degree of satisfaction (4 for the environment of practical training, 4 for the environment of practical training, 4 for the content 3 for the time assignment and 4 for the evaluation) and one open question. As results the students were satisfied with the practicality and fresh experience. But they were relatively unsatisfied with the environment of the practical training and the number and sincerity of the trainers. Especially they were dissatisfied with the correspondence with the objectives of education, conection with the lecture, communication with the trainers, time assignment and evaluation. As a Part of efforts to formulate an effective system fer practical training it is necessary to estabilish concrete goals and detail check lists to guide both trainers and students.

• The Journal of Korean Physical Therapy
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• 제9권1호
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• pp.185-193
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• 1997

The purpose of this study was to investigate the neurophysiological mechanisms, assessment of muscle spasm and treatments that could apply to clinical field. Spasm is a painful pattern of contraction of muscle caused by chronic or acute trauma, excessive tension, or organic disorders. Aside from pain, muscle spasm creates shortenning of muscles and limits motion. Untreated spasm and protective immobility due to pain lead to decreased local blood flow in the muscles and result in a vicious cycle of muscle spasm and paul. The assessment of muscle spasm involve muscle tone assessment, tissue compliance, and joint ROM. Each of these aessessments utilize as a part of the patient's condition Clinical managements involve drug management and physical therapy. Expecially, physical therapy is one of the most important techniques to reduce muscle spasm. Physical therapy includes applying heat and cold, electrical stimulation, massage, and traction. This investigation should entourage phisical therapists to experiment further with various techniques to reduce muscle spasm.

• The Journal of Korean Physical Therapy
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• 제32권4호
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• pp.258-265
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• 2020

Purpose: This study examined the legal basis related to a physical therapist's home-based rehabilitation. Methods: The policy data were referenced to the comprehensive plan for national health promotion and the guidebook Community Health Promotion Project issued by the Korea Health Promotion Institute and other institutes. The legal data were referenced to the Bill information system on the National Assembly website. Results: The physical therapist's home-based rehabilitation did not have a legal basis in the community-based rehabilitation project (CBR) of the HP 2020 project. On the other hand, according to the Home health care part of the community health promotion project that began in 2013, physical therapists were allowed to play a role from 2020 under Article 16-2 (Public Officials in Exclusive Charge of Visiting Health Management) of the REGIONAL PUBLIC HEALTH ACT. Conclusion: Policies and laws are being developed in the field of healthcare, but the necessary policies and laws in the field of rehabilitation are still insufficient. A bill to rehabilitate in a variety of fields and spaces by modifying the scope of work of physical therapists will be needed.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2018년도 춘계 종합학술대회 논문집
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• pp.359-360
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• 2018

본 연구에서는 무릎 보조도구를 착용하지 않은 상태와 착용한 상태에서 앉았다 일어서기 동작 시의 무릎 근육의 활성도 차이를 비교하여, 착용형 무릎 보조도구가 무릎 뼈관절염을 가진 노인들의 하지 근육의 근 활성도에 미치는 영향을 알아보았다. 그 결과, 무릎 보조도구를 착용하지 않은 상태에 비해 보조도구를 착용한 상태에서 안쪽넓은근과 가쪽넓은근의 근 활성도가 통계적으로 유의하게 감소한 것으로 나타났다. 이를 통해, 무릎 보조도구가 앉았다 일어서기 동작 시 하지 근육을 보조하여 근 활성도를 감소시키는 등 무릎의 뼈관절염을 가진 노인들의 일상생활 보조에 유용할 수 있는 가능성을 확인할 수 있었다.