• Proceedings of the Korean Society of Computer Information Conference
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• 2019.01a
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• pp.79-82
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• 2019

본 논문은 VR을 기반으로 하여 별도의 장갑이나 핸드헬드 디바이스 없이 치매 예방과 재활치료를 위한 VR을 이용함으로써 사용자의 두뇌 사용능력과 신체 활동성을 증가시켜 치매예방과 재활치료 효과를 향상시킬 수 있도록 하였다. 치매 예방 콘텐츠로는 치매의 대표적인 원인인 뇌세포의 퇴화에 초점을 맞춰 기억력, 논리력, 산술능력, 공간인지능력 등을 훈련할 수 있도록 구성하고, 노인을 위한 재활치료 콘텐츠로는 상지훈련, 하지훈련, 정신훈련, 밸런스훈련 등에 효과적이도록 구성하였다. 1:N 방식의 그룹훈련으로 고도화하여 다수의 사용자 또는 그룹이 작업치료사 한 명의 통제를 받아 치매예방 및 인지훈련이 가능한 시스템 개발하고 공공보건의료시설, 요양원, 재활의학과 보유병원 등에서 이용할 수 있다.

• Proceedings of the Korea Information Processing Society Conference
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• 2017.04a
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• pp.1100-1102
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• 2017

손가락 운동은 뇌에 가장 큰 영향을 미친다고 알려져 있으며, 손의 기능은 운동과 감각의 복합 기능을 가지고 있기 때문에 식사하기, 옷 입기 등 일상생활을 하는데 있어 반드시 필요하다. 본 연구는 만성 뇌졸중 환자를 대상으로 손가락 재활치료를 위해 환자의 손동작 인식을 위한 'Real Sense'와 게임 개발 엔진인 'Unity3D'를 연동하여 게임을 개발하는 것을 목적으로 한다. 제안하는 게임은 활동성을 부가함으로써 손가락 재활이라는 특정 목적을 달성하는 기능성 게임이며, 주어진 과제를 단계별로 나누어 진행하도록 하여 난이도를 설정하였다. 우리는 환자들의 게임 참여도를 높이기 위해 딱딱한 화면이 아닌 친숙한 게임형식으로 구성하여 환자들이 지루함 없이 자발적으로 재활치료를 할 수 있도록 도움을 주며, 환자들은 우리의 게임을 이용하며 손가락을 균형 있게 사용함으로써 뇌 활동을 향상시킬 수 있다. 기존의 재활치료는 환자가 직접 병원을 가야하는 불편함과 가격이 비싼 재활 치료 기계를 사야하는 반면에 본 연구에서는 비교적 저렴하고 가벼운 'Real Sense'를 이용하여 시간과 공간에 얽매이지 않고 재활치료를 할 수 있도록 하였다.

• The Journal of Korean Physical Therapy
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• v.11 no.1
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• pp.157-165
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• 1999

The Internet is an important tool in contemporary society. This study was carried out to investigate current use of internet and to suggest effective development of it in the field of physical therapy. A sample of physical therapy members in the internet responded to the questionare by means of e-mail from 26, April to 14. May. 1999. Of the 98 subjects, 26 completed the questionnaire, a response rate of $26.53\%$. The results were as follows. The most important problem to use internet in the field of physical therapy was poor information and abscence of database. The exchange of information among members, search database, virtual lecture system and distance treatment counseling in the future were expected. All members, professors of university and college, physical therapists in clinic and students must cooperate to construct database and useful information.

• Journal of Biomedical Engineering Research
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• v.23 no.2
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• pp.155-163
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• 2002

Attention Deficit Hyperactivity Disorder(ADHD) is a childhood syndrome characterized by short attention span. impulsiveness, and hyperactivity, which often leadㄴ to learning disabilities and various behavioral problems. For the treatment of ADHD, medication and cognitive-behavior therapy is applied in recent yearn Although psycho-stimulant medication has been widely used for many rears. current findings suggest that, as the sole treatment for ADHD, it is an inadequate form of intervention in that parents don't want their child to use drug and the effects are limited to the period in which the drugs are physiologically active. On the other hand, EEG biofeedback treatment studies for ADHD have reported promising results not only in significant reductions in hyperactive, inattentive, and disruptive behaviors, but also improvements in academic performance and IQ scores. However it is too boring for children to finish the whole treatment. The recent increase in computer usage in medicine and rehabilitation has changed the way health care is delivered. Virtual Reality technology provides specific stimuli that can be used in removing distractions and providing environments that get the subjects'attention and increasing their ability to concentrate. VR technology can hold a patient's attention for a longer period of time than other methods can, because VR is immersive, interactive and imaginal. Based on these aspects, we developed Attention Enhancement System (AES) using VR technology, EEG biofeedback, and cognitive training method for enhancing attention and made a clinical trial to people who have attention difficulty and behavioral problems.

• Journal of Korea Water Resources Association
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• v.38 no.3 s.152
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• pp.199-212
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• 2005

The study on the plan for rehabilitation project of domestic water distribution system - especially using Heuristic Algorithm as Genetic Algorithm which is expected to provide a more optimal solution effectively - has not been done sufficiently. The purpose of this study is the development of the optimal decision making system for the rehabilitation of the water distribution system considering economic and hydraulic influences using ReHS which is recent study of OR technique. Five different models with different objective functions are developed and tested to virtual pipe network according to various conditions considered in this study. These models provide more options for the rehabilitation of pipe network systems compared to previously suggested models in the literature.

• Physical Therapy Rehabilitation Science
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• v.3 no.1
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• pp.13-19
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• 2014

Objective: The purpose of this study was to determine the effects of Augmented Reality-based Postural Control (ARPC) training on balance and gait function in patients with stroke. Design: Single-blind randomized controlled trial. Methods: Twenty participants who experienced a stroke were enrolled in the study and randomly assigned to the ARPC (n=10) or control group (n=10). Subjects in both groups received conventional physical therapy for 60 min per session, 5 days per week, for 4 weeks. In addition, subjects in the ARPC group received ARPC training for 30 min per day, 3 days per week, for 4 weeks. The participants watched established normal postural control patterns on a head-mounted display and repeated the movements in ARPC training. Outcome measurements were assessed using the Berg Balance Scale (BBS) and 10-Meter Walk Test (10MWT) before and after 4 weeks of training. Results: Of the 20 randomized participants, only 18 completed the 4-week training program. The ARPC group showed significant improvement in the BBS and 10MWT after training (p<0.05). Meanwhile, the control group did not exhibit improvement in either variable. In addition, the ARPC group showed significantly greater improvement than the control group in the 10MWT (p<0.05), whereas no significant difference was observed between the groups for the BBS. Conclusions: The results of this study confirmed the benefits of ARPC training on dynamic balance and functional gait ability. Additionally, this study may provide evidence supporting the use of an ARPC training program for improving balance and gait ability in patients after a chronic stroke.

• International Journal of Computer Science & Network Security
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• v.21 no.2
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• pp.110-119
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• 2021

The Coronavirus or COVID-19 is contagiousness virus that infected almost every single part of the world. This pandemic forced a major country did lockdown and stay at a home policy to reduce virus spread and the number of victims. Interactions between humans and robots form a popular subject of research worldwide. In medical robotics, the primary challenge is to implement natural interactions between robots and human users. Human communication consists of dynamic processes that involve joint attention and attracting each other. Coordinated care involves sharing among agents of behaviours, events, interests, and contexts in the world from time to time. The robotics arm is an expensive and complicated system because robot simulators are widely used instead of for rehabilitation purposes in medicine. Interaction in natural ways is necessary for disabled persons to work with the robot simulator. This article proposes a low-cost rehabilitation system by building an arm gesture tracking system based on a depth camera that can capture and interpret human gestures and use them as interactive commands for a robot simulator to perform specific tasks on the 3D block. The results show that the proposed system can help patients control the rotation and movement of the 3D arm using their hands. The pilot testing with healthy subjects yielded encouraging results. They could synchronize their actions with a 3D robotic arm to perform several repetitive tasks and exerting 19920 J of energy (kg.m².S^-2). The average of consumed energy mentioned before is in medium scale. Therefore, we relate this energy with rehabilitation performance as an initial stage and can be improved further with extra repetitive exercise to speed up the recovery process.

• Clinics in Shoulder and Elbow
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• v.24 no.3
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• pp.156-165
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• 2021

Background: This study aimed to determine: the perspectives of the patient cohort that underwent telehealth consultation and shoulder rehabilitation during coronavirus disease 2019 (COVID-19) and the differences in the patients' perspectives with the two different telehealth video applications (apps) used in the study. Methods: This is a prospective study carried out during the COVID lockdown period of April to July 2020. Thirty consecutive patients from the orthopedics department of a tertiary institute in India underwent their first-ever session of a video app-based (Zoom or WhatsApp) telehealth consultation with shoulder rehabilitation exercises on a handheld mobile, tablet, or laptop device. After the virtual consultation, the patients were sent a validated telehealth usability questionnaire (TUQ) to evaluate their perspectives. Scores obtained from the TUQ were the primary outcome measure. Results: The study was completed by 30 patients (16 men and 14 women) with an average age of 56 years (range, 20-77 years). The patients who contacted us during the lockdown period with either a stiff shoulder or a conservatively treated shoulder fracture were included in the study. The average TUQ score was 13.6 (median, 14.5; range, 6-21) out of a maximum of 21 points. Eighty percent of the patients were satisfied and found the telehealth service useful. Use of the Zoom app scored significantly higher (median, 17; average, 15.6) than the WhatsApp app (median, 8.5; average, 9.6) (p=0.004). Conclusions: Patients who received telehealth consultation and shoulder rehabilitation were overall satisfied. Telehealth apps with advanced video calling features such as Zoom should be preferred for higher patient satisfaction.

• Journal of Convergence for Information Technology
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• v.9 no.5
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• pp.172-179
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• 2019

The purpose of this study was to investigate the effects of virtual reality game based training on balance and upper limb function in subacute stroke patients. Thirty patients with subacute stroke were randomly assigned to experimental groups(n=15) and control groups(n=15) applying virtual reality game-based training programs. Intervention is applied three times a week for 6 weeks, 30 minutes for 1 time. In the study group, there was a significant improvement in balance ability, upper extremity function, and trunk impairment scale(p<.05), and the difference between the two groups was significant in the BBS, TUG, TIS(p<.05). Based on these results, the virtual reality game based training program is clinically useful exercise program for subacute stroke patients.

• Journal of the Institute of Electronics Engineers of Korea SC
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• v.42 no.6
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• pp.57-66
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• 2005

In this paper, a new rehabilitation training system was developed to improve equilibrium sense by combining virtual reality technology with a fixed exercise bicycle. The subjects consisted of two groups. A group of young people, was compared against a group of elderly. We measured three different running modes of virtual bicycle system with two successive sets. The parameters measured were running time, velocity, the weight movement, the degree of the deviation from the road, and the variables about the center of pressure. The repeated training, our results showed that the running capability of the elderly improve compared. In addition, it was found out that the ability of postural control and the equilibrium sense was improved with the presentation of the visual feedback information of the distribution of weight. From the results of this experiment, we showed that our newly developed system might be useful in the diagnosis of equilibrium sense or in the improvement of the sense of sight and, somatic, and vestibular sense of the elderly in the field of rehabilitation training.