• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2004년도 추계학술대회 논문집
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• pp.935-938
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• 2004

This paper describes the quantitative analysis on the improvement of equilibrium sensory using virtual bicycle system. We have used a virtual bicycle system that combines virtual reality technology with a bicycle. In this experiment, 10 subjects were tested to investigate the influencing factors on equilibrium sensory. Straight road and curved road driving at several factors including cycling time, number of times of path deviation, and center of pressure(COP) were extracted and evaluated to quantify the extent of control. Also, To improve the effect of balance training, we investigated the usefulness of virtual feedback information by weight shift. The result showed that the system could be effective for equilibrium sensory rehabilitation training device. The analysis method might also have wider applicability to the rehabilitation field.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2004년도 추계학술대회 논문집
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• pp.1137-1142
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• 2004

Walking training is one of the most important rehabilitation processes with paralysis patient. Walking training by using an orthosis can help advancing a patient's independent level. However, existing orthoses have some serious demerit of mechanical problem that the knee joint is locked in the state where it is completely extended, which increases energy consumption and fatigue. For this reason, it is suggested, for more practical orthosis, that the knee joint should be placed and it should have capability of suspending patient's weight. In this paper, 1-DOF walking orthosis which compensates the demerit of the existing orthosis and secures patient's mobility has been proposed. New orthosis has been designed under the following two premises. First, the knee joint of the orthosis was designed fold in order for the orthosis to move in a walking pattern similar to that of a normal person. Second, the knee joint was designed to extend during the swing phase and lock safely during the stance phase.

• 한국전문물리치료학회지
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• 제3권2호
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• pp.84-94
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• 1996

This paper reviews physiological changes in the nervous system of patients with hemiparesis that may contribute to muscle weakness. The discussion includes the important role that alterations in the physiology of motor units, notably changes in firing rates and muscle fiber atrophy, play in the manifestation of muscle weakeness. This role is compared with the lesser role that spasticity of the antagonist muscle group appears to play in determining the weakness of agonist muscles. The contribution of other factors that result in mechanical restraint of the agonist by the antagonist is discussed relative to muscle weakness in patients with hemiparesis. More studies on patients with hemiparesis are required to assess what role muscle strength training should play in rehabiliting patients after a stroke.

• 대한물리치료과학회지
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• 제9권4호
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• pp.131-139
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• 2002

The proportion of the aged people in Korea has increased rapidly by more than 7% in 2000. A survey says that the changing rate from the aging society to the aged is the highest among the OECD countries. The prevalence rate of the aged population is on the increase. Chronic diseases such as arthritis and strokes limits their body's functions and activities of daily living. It is necessary that functional training. ADL training and continuous treatment be provided by Physical or Occupational Therapists. Discontinuance of treatment can cause the aged people to be in a bed state. The aged people need a variety of home care services at their convenience. Occupational and Physical therapist should play a major role in providing the rehabilitation-base home care services. Further they are expected to contribute to the extension of health care services such as home care and nursing home programs.

• 전자공학회논문지CI
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• 제46권6호
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• pp.7-17
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• 2009

효과적인 재활 시스템을 구상하는데 있어서 훈련 데이터의 정교한 분석은 다음 단계 훈련을 위한 피드백 자료로서 매우 중요하다. 현재 다양한 생체 역학적 실험을 통해 인간의 운동 능력을 평가하고 이로부터 생성된 데이터의 분석을 위한 객관적이고 신뢰성 있는 연구결과들이 발표되고 있다. 그러나 대부분의 기존 연구들은 기초 통계적인 방법에 근거한 정량분석만을 수행함으로써, 획득된 정보를 임상에 적용 하는데 있어서는 충분한 신뢰성을 보장할 수 없다. 데이터마이닝은 대용량 데이터에 들어있는 숨겨진 규칙과 패턴을 탐사함으로써 임상 데이터에 숨어있는 의미 있는 정보추출에 성공적으로 사용되고 있으며, 특히 임상 연구 분야에서는 훌륭한 의사 결정 지원 시스템으로서 점점 그 사용이 증가되고 있다. 본 연구에서는 신뢰성 있는 자세 제어 능력(Postural control ability) 평가를 위해서 측정된 훈련 데이터에 가중연관규칙 탐사를 적용하여 자세 훈련 유형에 따른 근육 활성 패턴과의 연관성을 분석, 효율적인 재활 훈련 규칙을 탐사하였다. 탐사된 규칙은 재활 및 임상 전문가의 의사결정에 더욱 정성적이고 유용한 선험적 지식으로 사용 될 수 있으며, 이를 근거로 환자 맞춤형 최적의 재활 훈련 모델을 구상하기 위한 지표로서 사용될 수 있다.

• 재활복지공학회논문지
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• 제11권3호
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• pp.253-259
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• 2017

현재 뇌손상환자에게 시행되고 있는 재활치료들은 훈련 환경이 단조롭고 긴 시간 동안 단순하고 반복적인 운동으로 인해 흥미와 참여도가 떨어져 훈련 효율이 저하된다는 문제가 제기되었다. 이와 같은 문제를 해결하기 위해 본 논문에서는 상지 재활훈련을 위해 상지에서 측정되는 근전도 신호와 모션센서를 기반으로 하는 웨어러블 장치와 모바일 게임을 결합한 새로운 재활 프로그램 개발을 제안함으로 위에서 제기된 문제를 해결하고자 하였다. 개발된 웨어러블 장치는 밴드 형태로 제작되어 신체에 쉽게 착용 및 해체가 가능하고, 모바일 게임은 웨어러블 장치로부터 측정되는 근전도 신호를 통하여 인식되는 움켜잡는 행동(grasp motion)과 모션센서를 통하여 인식되는 굴곡(flexion), 신전(extension), 외전(abduction), 내전(adduction)을 반영하여 게임을 통한 재활훈련이 가능하도록 설계되었으며, 난이도 조절을 통한 환자 개개인에 적합한 맞춤형 재활환경을 제공할 수 있도록 하였다. 개발된 프로그램을 상지 재활이 필요한 14명의 뇌손상 환자를 대상으로 적용한 후, 설문조사를 통한 유용성 평가를 진행한 결과 개발된 재활프로그램이 기존 재활프로그램보다 흥미가 있었고 재활훈련 간 지루하지 않았다고 응답하였고, 추후 개발된 프로그램 재사용에 대한 의지를 보였다.

• 대한물리치료과학회지
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• 제29권4호
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• pp.65-74
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• 2022

Background: This study attempted to find out the degree of awareness of owners who have the most influence on companion animal's rehabilitation exercise, and the purpose of the treatment effect, and the expectations of rebilitation treatment. The purpose of this study is to find out about the awareness, comprehension, and expectations of caregiver for rehabilitation exercise in companion animal medical services, and to develop them into a field of animal medical services. Design: The tool used in this study used a questionnaire, and the composition consists of the subject's general characteristics, recognition of companion animal rehabilitation, comprehension and expectation. Methods: A questionnaire was given to 103 companion animal's owners, and all were collected and analyzed. Analysis of the frequency analysis method, Fisher's exact test were analyzed. Results: It was confirmed that the difference was significant in the question of whether the caregivers had heard companion animal rehabilitation (p<.05). When asked that rehabilitation is necessary to improve physical function, the difference was confirmed to be significant (p<.05). The significance was confirmed when asked if the caregiver was willing to participate in animal rehabilitation education (p<.05). When asked if caregiver was willing to recommend rehabilitation exercise for companion animal of other caregiver who need rehabilitation exercise, it was confirmed that the difference was significant (p<.05). Conclusion: There was significant difference between gender. This study confirmed that the definite concept caregivers' perception in animal rehabilitation was not established. Therefore, in order to improve perception of caregivers, interdisciplinary exchanges and publicity for animal rehabilitation are needed, and the development of training and education programs for rehabilitation experts was suggested.

• Physical Therapy Rehabilitation Science
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• 제1권1호
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• pp.13-16
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• 2012

Objective: Electroencephalogram (EGG)-feedback is a training procedure aimed at altering brain activity, and is used as a treatment for disorders like attention. The purpose of this study was to determine the effects of external focus of attention by EGG-feedback on balance in young adults. Design: Cross-sectional study. Methods: Subject were students in Sahmyook University. Fifty young adults in their twenties and thirties. Subjects were performed both with and without external focus of attention by EEG-feedback on the posture of standing and tandem standing. Participants were educated effort to maintain static posture when they were under internal focus of attention. Good Balance System was used for measurement of postural consistency upon the following force platforms. Results: Body sway decreased significantly both normal standing and tandem standing with external focus of attention by EEG-feedback (p<0.05). Conclusions: The results demonstrate that the benefits of an external attentional focus are generalizable to young adults. The external focus of attention outperformed the internal focus of attention on the postural balance (p<0.05). It is showed that external focus of attention significant effects on balance by revoked automatic postural control of movement. Furthermore balance might be improved by training with an external focus. Further study is required to develop for training as a method of preventing fall in elderly peoples.

• 재활복지공학회논문지
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• 제10권4호
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• pp.329-336
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• 2016

수화를 사용하는 농아인은 의사소통의 제약에 의해 사회적인 불평등과 금전적 손실을 겪고 있다. 이러한 이유로 본 연구에서는 농아인의 원활한 의사소통을 위해 8개의 근전도와 1개의 관성센서로 구성된 암밴드 센서를 이용하여 실시간으로 미국 수화를 인식하는 알고리즘을 개발하였다. 개발된 알고리즘의 성능 검증은 11명의 피험자를 통해 진행하였으며, 패턴 분류기 학습은 훈련 데이터베이스 크기를 증가시키면서 진행하였다. 실험 결과, 개발된 패턴 인식 알고리즘은 동작 별 20개의 훈련 데이터베이스에서 97%이상의 정확도를 가졌으며, 30개의 훈련 데이터베이스에서 99%이상의 정확도를 보였다. 이를 통해 본 연구에서 제안하는 암밴드 센서를 이용한 수화 인식 알고리즘의 실용성과 우수성을 확인하였다.

• BMB Reports
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• 제49권11호
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• pp.635-640
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• 2016

Recent evidence indicates that the ephrin receptors and ephrin ligands (Eph/ephrin) expression modulate axonal reorganization and synaptic plasticity in stroke recovery. To investigate the effect of task-specific training (TST) on Eph/ephrin expression in the corticospinal tract (CST) after stroke, we compared Eph/ephrin expression in the peri-infarct cortex, pyramid, and spinal cord of a photothrombotic stroke model of rat brains treated with or without TST. The TST treatment showed significantly better recovery in the behavioral tests compared with no treatment. The significant upregulation of ephrin-A1 and ephrin-A5 observed in activated astrocytes of the CST at 2 weeks' post-stroke was decreased by TST. At 5 weeks, post-stroke, the elevated ephrin-A5 levels were decreased in the ipsilateral pyramid and spinal cord by TST. Glial fibrillary acidic protein was upregulated concomitantly with the altered ephrin expression after stroke, and the expression of these proteins was attenuated by TST. These data suggest that TST alters the expression of ephrin ligands in the CST after stroke.