Transdermal Nicotine Patch Effects on EEG Power Spectra and Heart Rate Variability During Sleep of Healthy Male Adults

JongBae Choi,YuJin G. Lee,DoUn Jeong 대한신경정신의학회 2017 PSYCHIATRY INVESTIGATION Vol.14 No.4

Objective-The effect of transdermal nicotine patch on sleep physiology is not well established. The current study aimed to examine the influence of nicotine patch on homeostatic sleep propensity and autonomic nervous system. Methods-We studied 16 non-smoking young healthy volunteers with nocturnal polysomnography in a double blind crossover design between sleep with and without nicotine patch. We compared the sleep variables, sleep EEG power spectra, and heart rate variability. Results-The night with nicotine patch showed significant increase in sleep latency, wake after sleep onset, and stage 1 sleep; and decrease in total sleep time, sleep efficiency, and percentage of REM sleep. Also, spectral analysis of the sleep EEG in the night with nicotine patch revealed decreased slow wave activity in stage 2 and REM sleep and increased alpha activity in the first NREM-REM sleep cycle. Heart rate variability showed no differences between the 2 nights, but the low to high ratio (a parameter indicative of sympathetic nervous system activity) positively correlated with wake after sleep onset in night with nicotine patch. Conclusion-Transdermal nicotine patch significantly disrupts sleep continuity, sleep architecture, and homeostatic sleep propensity. The overactivation of the sympathetic nervous system may be responsible for these changes.

Effect of Electric Stimulation Training on Walking Ability of Patients with Foot Drop after Stroke

Jongbae Choi,Sungryoung Ma,Jongeun Yang 국제물리치료연구학회 2019 Journal of International Academy of Physical Ther Vol.10 No.4

Background: Foot drop is a common symptom after stroke and causes walking disorders. Therefore, its proper treatment is important for improving the walking ability of patients with foot drop. Objective: This study aimed to investigate the effects of electrostimulation during walking on the walking ability of patients with foot drop after stroke. Design: Quasi-experial study. Methods: The study enrolled 18 patients with foot drop after stroke. All subjects were assigned to the experimental or control group. The experimental group underwent electric stimulation during walking, while the control group used ankle foot orthoses. Both groups received treatment 20 minutes a day 5 times a week for 4 weeks. Outcome measures were assessed for walking and balance ability using the 10-m walking test (10MWT), 6-min walking test (6MWT), and Timed Up and Go test (TUG) Results: After the intervention, both groups showed significant improvements in 6MWT and TUG results. However, the experimental group showed significantly better improvement on all tests than the control group. Conclusion: The foot drop stimulator effectively improved the walking and balance ability of patients with foot drop after stroke.

Effect of Motor Imagery Training on Somatosensory Evoked Potentials and Upper Limb Function in Stroke Patients

Jongbae Choi,Jongeun Yang 국제물리치료연구학회 2020 Journal of International Academy of Physical Ther Vol.11 No.1

Background: Motor imagery is the mental representation of an action without overt movement or muscle activation. However, few previous studies have demonstrated motor imagery training effects as an objective assessment tool in patients with early stroke. Objective: To investigate the effect of motor imagery training on Somatosensory Evoked Potentials (SSEP) and upper limb function of stroke patients. Design: A quasi-experimental study. Methods: Twenty-four patients with stroke were enrolled in this study. All subjects were assigned to the experimental or control group. All participants received traditional occupational therapy for 30 minutes, 5 times a week. The experimental group performed an additional task of motor imagery training (MIT) 20 minutes per day, 5 days a week, for 4 weeks. Both groups were assessed using the SSEP amplitude, Fugl-Meyer assessment of upper extremity (FMA UE) and Wolf motor function test. Results: After the intervention, the experimental group showed significant improvement in SSEP amplitude and FMA UE than did the control group. Conclusion: These findings suggest that the MIT effectively improve the SSEP and upper limb function of stroke patients.

Dysphagia Rehabilitation Using Kinesiology Taping: A Systematic Review and Design Considerations for Future Studies

Jongbae Choi,Dooho Lee,Jisu Park,Nakyoung Hwang 국제물리치료연구학회 2021 Journal of International Academy of Physical Ther Vol.12 No.3

Background: Kinesiology taping (KT)’s therapeutic effect on dysphagia is insufficient, and method of KT application is not yet clear. Objectives: To review the considerations for the clinical application of KT for dysphagia rehabilitation. Design: A systematic review. Methods: The present study involved a systematic search of electronic databases (Medline, Embase, CINAHL, and Web of Science) to identify relevant studies published on the use of KT for dysphagia rehabilitation between 2010 and 2020. Results: Four articles (on child dysphagia, adult dysphagia, and healthy adult) were selected. It was found that when KT was applied with 15% tension to the orbicularis oris, mylohyoid, sternohyoid, and masseter muscles in children with dysphagia, lip closure and sucking function were improved. In addition, when KT with 80% tension was applied below the hyolaryngeal complex in healthy adults, significant activation of the suprahyoid muscle was reported. Application of KT with 50% tension to the digastric posterior bellies and the mylohyoid, geniohyoid, sternocleidomastoid, and upper trapezius muscles in adults with dysphagia showed an immediate improvement in vertical excursion and epiglottis rotation of the hyoid bone. Finally, application of KT with 70% tension to the hyolaryngeal complex in adults with dysphagia showed increased thickness of the suprahyoid and the tongue muscles. Conclusion: The present review indicates that KT has significant potential as a therapeutic exercise method for patients with dysphagia in the future. However, the application of KT in such patients should take into account the shape, design, and degree of tension of the tape and the patient's capability and swallowing function.

Model based method을 이용한 3차원 물체인식

김종배(Jongbae Kim),최연성(Yeonsung Choi),최종수(Jongsoo Choi) 한국정보과학회 1987 한국정보과학회 학술발표논문집 Vol.14 No.1

본 논문에서는 model based method을 이용한 3차원 물체인식에 관한 연구를 서술한다. 본 연구에는 각기 특별한 역할을 하는 2개의 component와 3개의 process로써 구성하였다. component들은 process에 필요한 정보를 제공하거나, process에서 구한 화상의 정보를 저장하고 관리한다. process는 화상을 의미있는 영역으로 분류하는 전처리와 화상에 존재하는 물체의 고유한 특징을 구하는 특징추출 및 모델의 지식과 비교를 통해 물체인식을 행하는 매칭과정이 있다. 매칭과정에서 불확실성 처리를 행하여 일치성을 구한다. 또 특징추출 과정에서 구한 정보를 저장하기 위해 계층적 데이타베이스를 구축하였으며, 실험을 통해 본 논문에서 제시한 인식 방법의 유용성을 확인한다.

Development and Control of a Small BLDC Motor for Entertainment Robots

Jongbae Lee,Chang-Woo Park,Saehyun Rhyu,Junhyuk Choi,Joongki Chung,Hagyeong Sung 제어로봇시스템학회 2004 제어로봇시스템학회 국제학술대회 논문집 Vol.2004 No.8

An IoT-Based Home Energy Management System over Dynamic Home Area Networks

Kim, Jongbae,Byun, Jinsung,Jeong, Daebeom,Choi, Myeong-in,Kang, Byeongkwan,Park, Sehyun SAGE Publications 2015 INTERNATIONAL JOURNAL OF DISTRIBUTED SENSOR NETWOR Vol.2015 No.-

<P>A smart grid (SG) has attracted great attention due to recent environmental problems. SG technologies enable users, such as energy system operators and consumers, to reduce energy consumption and the emission of greenhouse gases, by changing energy infrastructure more efficiently. As a part of the SG, home energy management system (HEMS) has become increasingly important, because energy consumption of a residential sector accounts for a significant amount of total energy consumption. However, a conventional HEMS has some architectural limitations on scalability, reusability, and interoperability. Furthermore, the cost of implementation of a HEMS is very expensive, which leads to the disturbance of the spread of a HEMS. Therefore, this paper proposes an Internet of Things- (IoT-) based HEMS with lightweight photovoltaic (PV) system over dynamic home area networks (DHANs), which enables the construction of a HEMS to be more scalable, reusable, and interoperable. We suggest the techniques for reducing the cost of the HEMS with various perspectives on system, network, and middleware architecture. We designed and implemented the proposed HEMS and conducted a experiment to verify the performance of the proposed system.</P>

Integrative package for low back pain with leg pain in Korea: A prospective cohort study

Park, Jongbae J.,Shin, Joonshik,Choi, Youngkwon,Youn, Yousuk,Lee, Sangho,Kwon, Seung-Ro,Lee, Hyangsook,Kang, Man-Ho,Ha, In-Hyuk,Shin, Imhee Elsevier 2010 COMPLEMENTARY THERAPIES IN MEDICINE Vol.18 No.2

<P><B>Summary</B></P><P>Back pain significantly affects both patients and society through personal suffering, supporting burden, work loss, and incurred expenses. With no unequivocal support for surgery versus conservative treatment, an integrative approach has become popular in Korea.</P><P><B>Objectives</B></P><P>To investigate the outcomes of an integrative package for low back pain with leg pain.</P><P><B>Methods</B></P><P>A prospective cohort study involving patients with low back and leg pain and confirmed disc herniation was carried out at an outpatient clinic in Korea. The treatment package comprised of herbal medicines, acupuncture, bee venom acupuncture, and a Korean version of spinal manipulation (Chuna). Study participants were evaluated at baseline and every 4 weeks for 24 weeks. Low back and leg pain intensity levels were measured on a visual analog scale (0–10), back function was evaluated with the Oswestry Disability Index (0–100), and the overall quality of life was assessed using the SF-36 Health Survey (0–100 in 8 different subcategories).</P><P><B>Results</B></P><P>Out of 150 patients, 128 completed the 24 weeks of therapy. Patients reported improvements in all outcome measures. At the completion of the study, low back pain scores improved by a mean of 3.3 (95% CI=2.8 to 3.8), and leg pain scores improved by a mean of 6.3 (95% CI=5.9 to 6.6). Significant improvements in ODI and SF-36 scores were observed at 4 weeks and sustained throughout.</P><P><B>Conclusions</B></P><P>This integrative package was effective in the treatment of LBP with leg pain and warrants further rigorous investigations.</P>

LED 조명 기반의 무선 가시광 LAN 통신을 위한 MAC 프로토콜 설계

전종배(Jongbae Jeon),최정호(Jungho Choi),김성만(Sung-Man Kim) 한국통신학회 2011 韓國通信學會論文誌 Vol.34 No.6

본 논문에서는 LED 조명 기반의 무선 LAN 통신을 위한 MAC 프로토콜을 설계하였다. 본 논문에서 제안하는 MAC 프로토콜은 LED 조명과 단말기의 송수신 방향을 자동으로 최적화할 수 있는 특징이 있다. 또한, 방송메시지 송신 및 단말기 등록을 위한 초기통신 시간이 주기적으로 할당되어 있는 특징이 있다. 데이터 통신방식으로는 carrier 의 센싱 및 충돌감지가 어려운 LED 가시광의 특징을 감안하여 기존의 무선 LAN 통신에서 사용되는 CSMA/CA(carrier sense multiple access with collision avoidance) 기반이 아닌 polling 기법을 사용하였으며, MAC 프레임 형식으로는 기존의 무선 LAN 통신용 프레임을 수정하여 무선 가시광 LAN 통신에 적합한 MAC 프레임을 제안하였다. 이렇게 제안하는 MAC 프로토콜의 성능수치를 구하였으며, 무선 가시광 PHY 통신단의 데이터 전송속도를 100 Mbps로 가정하였을 때에 여러 가지 오버헤드를 제외하고 순수하게 데이터를 보낼 수 있는 데이터 전송량은 94.386 Mbps에 달하였다. In this paper, we propose a MAC protocol for visible light wireless LAN using LED light. The proposed MAC protocol has a function of automatic direction optimization for LED transceiver. There is periodical time slot for broadcasting and registration in the proposed MAC protocol. We used polling method for data transfer in the protocol since visible light is hard to detect carrier and collision by other mobile stations; thus we cannot use CSMA/CD method in visible light LAN. We also amended the MAC frame of IEEE 802.11 to propose a revised version for visible light wireless LAN using LED light. We investigate the performance of the proposed MAC protocol. When the bit rate of physical layer is 100 Mb/s, the net data throughput using the proposed MAC protocol is estimated to 94.386 Mb/s.

장애인 자가운전에 관한 체계적 문헌 고찰: 국내문헌을 중심으로

최원석(WonSeuk Choi),김종배(JongBae Kim) 대한작업치료학회 2024 대한작업치료학회지 Vol.32 No.1

목적: 본 연구는 최근 10년간 국내에서 발행된 장애인 자가운전 관련 문헌을 체계적으로 분석 및 고찰했다. 연구방법: 국회도서관, Research Information Sharing Service, Koreanstudies Information Service System, DBpia, Google Scholar에서 2014년 1월부터 2023년 12월 사이에 발행된 문헌을 검색했다. 검색어는 “장애인” & “자가운전”을 사용했으며, 총 검색된 문헌은 469편이었다. 이중 선정기준에 부합한 문헌 28편을 분석했다. 결과: 국내에서 발행되는 장애인 자가운전 관련 연구는 점차 감소하고 있었다. 발행된 문헌의 유형은 학술지가 가장 많았다. 문헌의 연구를 수행한 제1저자의 소속은 작업치료학과와 재활과학⋅공학과 소속이 가장 많았고, 연구 분야는 장애인의 자가운전을 촉진 및 지원할 수 있는 제도 마련이 가장 많았다. 연구 설계는 실험연구가 가장 많았지만, 전반적인 연구 수준은 낮은 것으로 확인되었다. 결론: 국내에서 발행된 장애인 자가운전 관련 문헌을 분석함으로써 우리나라의 연구 현황을 파악할 수 있었다. 본 연구는 향후 장애인 자가운전을 지원 및 보장할 수 있는 선진형 체계가 국내에 도입될 때 참고할 수 있는 기초자료로서 의의가 있다. Objective: This study systematically analyzed and reviewed literature on self-driving for the disabled published in Korea over the past 10 years. Methods: We searched literature published between January 2014 and December 2023 in the Library of Congress, RISS, KISS, DBpia, and Google Scholar. The search terms “disabled” and “self-driving” were used, and a total of 469 documents were searched. Of these, 28 articles that met the selection criteria were analyzed. Results: Research published domestically on self-driving for the disabled was gradually decreasing. The most common type of published literature was academic journals. The first author who conducted literature research most often belonged to the Department of Occupational Therapy and the Department of Rehabilitation Science and Engineering, and the most common research area was the establishment of systems to promote and support self-driving for the disabled. The majority of research designs were experimental studies, but the overall level of research was confirmed to be low. Conclusion: Analyzing literature on self-driving for the disabled published domestically, we were able to understand the current status of research in our country. This study is significant as basic data that can be used as a reference when an advanced system that can support and guarantee self-driving for the disabled is introduced in Korea in the future.