뇌졸중 환자의 마비측과 비마비측 호흡근 기능 비교

정주현,김난수 대한스포츠물리치료학회 2022 정형스포츠물리치료학회지 Vol.18 No.2

Purpose: To compare respiratory muscle function on the paretic and non-paretic sides in patients diagnosedwith stroke. Methods: Forty-four patients clinically diagnosed with ischemic or hemorrhagic stroke were included. Thediaphragm and parasternal intercostal muscles were measured for muscle thickness and movement,respectively. Respiratory muscle activity was measured in the diaphragm, external intercostal muscles, andsternocleidomastoid muscles. The measurement data were analyzed using an independent t-test to comparethe paretic and nonparetic sides of respiratory muscle function. Results: The diaphragm thickness at total lung capacity, thickness ratio, and parasternal intercostal musclemovement of the non-paretic side were significantly greater than those of the paretic side. Moreover, thediaphragm activity of the paretic side was significantly greater than that of the nonparetic side. Conclusion: TThis study demonstrated that asymmetry of respiratory muscle function between the paretic andnon-paretic sides occurred after stroke. To improve the respiratory function of stroke patients, respiratorymuscle strengthening exercises are needed to improve the asymmetry of the respiratory muscle function.

휴대용 음향기기 사용실태 및 청력보호 방안

정주현,최정호,윤아라,정병용,이동경 대한인간공학회 2012 대한인간공학회 학술대회논문집 Vol.2012 No.11

Objective: 본 연구는 고등학생 및 대학생을 대상으로 휴대용 음향기기에 대한 사용실태와 청력손실에 대한 인식도를 조사하였으며, 이를 바탕으로 청력보호 방안을 제시하고자 한다. Background: 과도한 음향기기의 사용으로 인하여 청소년의 청력 손실이 증가하고, 난청환자의 비율이 높아지고 있다. 국내에서는 휴대용 음향기기의 최대음량을 제한하는 최대음량 권고기준을 2011년에 입법예고 하였다. Method: 본 연구에서는 미국, 유럽 등의 휴대용 음향기기에 관한 소음 노출 수준에 관한 기준 등을 조사하였으며, 고등학생 및 대학생을 대상으로 휴대용 음향기기에 대한 사용실태와 출력수준을 조사하였으며, BHI를 이용한 간이형 청력검사를 실시하였다. Results: 전체 조사 학생의 75.0%가 스마트폰을 이용하여 음악을 들으며, 63.2%가 하루에 2시간 이상을 사용하는 것으로 나타났다. 또한, BHI 검사표에 의한 조사에서는 고등학생의 22.1%와 대학생의 29.1%가 청력검사를 요하는 것으로 나타났다. 음향기기별 최대 볼륨에서의 출력조사에서는 100 dBA를 초과하는 음향기기가 전체 64.1%를 차지하는 것으로 나타났다. Conclusion: 휴대용 음향기기에 관한 권장 노출기준을 토대로 음향기기의 볼륨 출력별로 색깔을 이용한 경고표시와 누적 소음노출량에 관한 경고 표시를 제안하였다. Application: 휴대용 음향기기의 소음노출 기준, 실태조사 및 인식도 조사 결과는 청력보호관련 정책을 정하는 데 기초자료로 이용될 수 있을 것으로 여겨진다.

조이스틱 선정을 위한 인간공학적 가이드라인 개발

정주현,신상희,정광균 대한산업공학회 2014 대한산업공학회 추계학술대회논문집 Vol.2014 No.11

폐쇄성수면무호흡증이 심혈관 교감신경에 미치는 영향에 대한 연구

정주현,김선영,윤병기,강일규,김선태,박기형 대한이비인후과학회 2008 대한이비인후과학회지 두경부외과학 Vol.51 No.11

The previous studies have shown that patients with obstructive sleep apnea (OSA) have shown high levels of cardiovascular diseases. These cardiovascular diseases are related to imbalance of cardiac autonomic systems. Alteration of QT interval in EKG reflects the increased cardiac sympathetic activity. The purpose of this study is to compare the cardiac sympathetic nerve activity between the control and OSA patients. Subjects and Method:All the patients were divided into the control group (n=20), whose RDI was less than 5 and the OSA group (n=40), whose RDI was more than 5. The OSA group was also divided into 3 groups, mild, moderate and severe, according to their RDI. The corrected QT interval (QTc) in EKG was checked at day time and during polysomnography. Results:The number of hypertensive patients was significantly greater in the OSA group than the control group (p<0.001). The QTc interval was increased proportional to the RDI (p<0.001). There was a significant difference in the QTc intervals between the daytime period and apnea peak (p=0.031). Conclusion:Our results showed that the QT prolongation might be a prognostic factor in predicting the cardiac sympathetic hyperactivity in obstructive sleep apnea patients. (Korean J Otorhinolaryngol-Head Neck Surg 2008;51:1020-4)

구강 질병부담 연구와 개선 방안

정주현,정회인 대한치과의료관리학회 2021 대한치과의료관리학회지 Vol.9 No.1

Measuring and quantifying the burden of disease (BoD) is crucial for healthcare policy-related decisions. For this purpose, summary measures of population health (SMPH) have been proposed to overcome the limitations of prevalence, incidence, and mortality. Oral health remains separated from the mainstream healthcare system, and the lack of reliable epidemiological data has been pointed out as the cause. In this study, we aimed to understand the flow of international and domestic BoD research related to oral disorders and the direction in which those studies should advance in the future. It is necessary to continuously revise the previously measured BoD of oral disorders and calculate the BoD by performing subdivisions, starting from the development of lay descriptions. Furthermore, developing elaborate BoD measurement methodologies that reflect the complexity of the oral cavity is essential.

등-허리뼈 분리동작과 슬럼프 동작이 등-허리뼈 척추세움근과 배곧은근 활성도에 미치는 효과

정주현,Jung, Ju-Hyeon 대한고유수용성신경근촉진법학회 2022 PNF and Movement Vol.20 No.1

Purpose: The purpose of this study was to investigate the effect of thoracic-lumbar dissociation motion and slump motion on thoracic-lumbar erector spinae and rectus abdominis muscle activity. Methods: Seventeen healthy adult volunteers participated in this study. All participants performed two motions (thoracic-lumbar dissociation motion, slump motion). Muscle activation during the two motions was measured using a surface electromyography device. The data from this were collected from the iliocostalis thoracis, iliocostalis lumborum, and rectus abdominis. The activities of these muscles before and after each motion were then compared. Results: The iliocostalis thoracis activation was significantly greater during the thoracic-lumbar dissociation motion than during the slump motion (p <0.05). The iliocostalis lumborum activation was greater during the slump motion than during the thoracic-lumbar dissociation motion (p <0.05). The rectus abdominis activation was lesser during the slump motion than during the thoracic-lumbar dissociation motion (p <0.05). Conclusion: This study confirmed that individual contraction of the erector spinae muscles is possible during thoracic-lumbar dissociation motion, which increases the stability of the thoracic spine. In addition, this motion could improve control of the rectus abdominis. Therefore, thoracic-lumbar dissociation motion should be considered for rehabilitation programs for patients with kyphosis and back pain.

게임 전시회 대학생 참관객의 목표지향적 참여의도 예측 : G-Star 게임전시회를 대상으로

정주현,현성협,김인신 한국무역전시학회 2015 무역전시연구 Vol.10 No.1

본 연구의 목적은 첫째, 게임 전시회인 지스타2014에 참가하고자 하는 대학생 참관객 들의 참가의도를 확장된 목표지향적 행동모형을 적용하여 분석하고자 하였으며, 둘째, 태도에 유의한 영향을 미치는 선행변수를 확인하고자 하였다. 마지막으로 지스타 참가 열망과 참관객 혁신성과의 관계를 살펴보고자 한다. 본 연구에서 제안한 모형의 실증 분석을 위하여 대학 재학생 318명의 유효표본을 사용하였으며, 빈도분석, 확인적 요인분석, 그리고 가설검증을 위한 구조방정식모형분석 을 실시하였다. 실증 분석 결과 다음과 같은 결과가 확인이 되었다. 첫째, 태도에 영향을 미치는 선행변수인 지각된 혜택에서 흥미와 다양성이 태도와 유의한 정(+)의 관계가 있음이 확인이 되었다. 둘째, 긍정 예기정서, 전파성, 지각된 행동통제는 각각 참가 열망과 긍정의 영향관계를 가지며, 셋째, 지각된 행동통제와 열망은 행동의도에 정(+)의 영향을 미친다 는 사실이 확인되었다. 마지막으로 참관객 혁신성은 열망에 유의한 영향을 미친다는 사실이 검증되었다. 본 연구의 결과에서 게임 전시회인 지스타에 참가하고자 하는 열망은 행동의도에 커 다란 영향을 미침을 확인하였으며, 이 참가 열망을 자극할 수 있는 요인을 확인해 볼 수 있었다. The aims of this study were to 1) analyze the attending intentions to G-Star2014 by applying Extended Model of Goal-Directed Behavior(EMGB), 2) identify the antecedents affecting attitude, and 3) investigate the relationship between desire and participants' innovativeness. To test the model empirically, the data collected from 318 participants was analyzed using structural equation modeling analysis. The results showed that 1) two dimensions of perceived advantages (enjoyment and product variety) have positive effects on attitude, but financial advantage, 2) positive anticipated emotion, communicability, and perceived behavioral control affect desire, but negative anticipated emotion, 3) perceived behavioral control and desire have positive influence on behavioral intention, and participants' innovativeness has positive influence on desire.

협업필터링 기반 각 유사도 특성을 고려하여 시간 및 장르를 결합한 유사도 지표

정주현,김경옥 대한산업공학회 2022 대한산업공학회 춘계학술대회논문집 Vol.2022 No.6

The Analysis of the Pulmonary Function and Expiratory Muscle Thickness in Female Smokers

정주현,김난수 대한스포츠물리치료학회 2017 정형스포츠물리치료학회지 Vol.13 No.1

This study analyzed the effects of smoking on expiratory muscle thickness and pulmonary function in 34 (17 smokers, 17 nonsmokers) healthy female volunteers. The thickness of the internal oblique and transverse abdominal muscles was measured at rest and with forced expiration, using a 7.5-MHz linear ultrasonic imaging probe. The measured thickness was converted into the percentage of change in muscle thickness. All subjects performed maximum expiratory flow maneuvers using a spirometer to determine the forced vital capacity, forced expiratory volume in the first second, peak expiratory flow, and forced expiratory volume in 1 s as a percentage of forced vital capacity. There were significant differences in pulmonary function (forced expiratory volume in 1 s as a percentage of forced vital capacity, peak expiratory flow) between the smokers and nonsmokers,as well as significant differences in expiratory muscle thickness (transverse abdominal). This study showed that female smokers have impaired pulmonary function and expiratory muscle contraction.

비강 질환 환자에서 한방 및 대체치료 현황에 대한 연구

정주현,이정호,강일규,차흥억,김선태 대한이비인후과학회 2010 대한이비인후과학회지 두경부외과학 Vol.53 No.1

Background and ObjectivesZZAlternative medicine is becoming increasingly popular and is frequently used for treating patients with nasal diseases. While western medicine and operative treatment are proven treatments, herbal medicine and alternative medicine are widely used without any supporting evidence for treating cases of allergic rhinitis, sinusitis and hypertrophic rhinitis. So, we have tried to assess the present state of Korean traditional medicine (KTM) and alternative medicine for treating nasal cavity diseases. Materials and MethodZZWe surveyed 204 patients who visited our department and were diagnosed with allergic rhinitis, sinusitis, deviated septum and/or hypertrophic rhinitis. The questionnaire included questions about whether or not the patients had tried KTM or alternative medicine,the reason for using KTM or alternative medicine, the frequency, kind, duration, effectiveness,cost and satisfaction and side effects. ResultsZZAmong 204 patients, 14% of the patients had used KTM and 18% of the patients had used alternative medicine. The percent of those who had used KTM or alternative medicine in each of the allergic rhinitis patient, the sinusitis patient and the deviated septum with hypertrophic rhinitis patient groups were 46, 41, and 24%, respectively. The satisfaction rate for KTM was 47% and that for alternative medicine was 40%. The satisfaction rate for western medicine was higher than that for KTM and alternative medicine. ConclusionZZMany patients used non-western medicine with obscure expectations. However,KTM and alternative medicine are not evidence-based treatments, so further research and education for patients are needed. Korean J Otorhinolaryngol-Head Neck Surg 2010;53:12-9