• 한국직업건강간호학회지
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• 제15권2호
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• pp.83-93
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• 2006

Purpose: This study purposed on investigating how the emotional labor affects the physical uncomfortable feeling of the workers in the department store. Method: The method of data collection was used of questionnaire for 574 workers of one department store located in Seoul. The period of data collection was done from November 1, 2004 to November 30 for about one month. The working career of the participants was over one month at that department. Result: The degree of emotional labor for participants, men were $3.21{\pm}0.53$ for the total point of 5.0 point, and the degree of the physical uncomfortable feeling was $3.07{\pm}0.48$ for total of 5.0 point. The degree of emotional labor for participants, women were $3.22{\pm}0.42$ for the total point of 5.0 point, and the degree of the physical uncomfortable feeling was $3.13{\pm}0.42$ for total of 5.0 point. In order to analyze the factors that affected the emotional labor and physical uncomfortable feeling, the multi-level reflecting analysis was used. As a result, men were insecurity of job influenced the emotional labor feeling in remarkable degree, women were the responsibility of job influenced the emotional labor. Men were insecurity and responsibility of job influenced physical uncomfortable feeling in remarkable degree, women were responsibility of job and emotional labor influenced the physical uncomfortable feeling in remarkable degree. Conclusion: The results of this study show that various strategies to remove the factors of job insecurity in order to reduce the level of emotional labor of the workers at the department store should be devised. In addition, the special way to minimize the physical insecurity should be contrived and carried out. Since the workers of the department stores had higher emotional labor, the factors of stress need to be analyzed and should be removed.

• 대한임상전기생리학회지
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• 제7권1호
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• pp.7-10
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• 2009

Purpose : The purpose of this study was to investigate the effect of electrical stimulation applied in dominant forearm on autonomic nervous system response of both hands. Methods : Fourteen healthy subjects (women) received low frequency-high intensity electrical stimulation to one forearm. The subjects assigned to two groups; a ipsilateral stimulation group (n=7) and a contralateral stimulation group (n=7). The electrode attachment was arranged on the forearm of the dominant arm and the electricity stimulus time was set as 15 minutes. Measuring items were the skin conduction velocity, the blood flow, and the pulse rate, which were measured total 3 times (pre, post, and post 10 min.). Results : The skin conduction velocity showed a significant difference according to the change of the time in both hands, but there was no significant difference according to time in the blood flow, and the change of the pulse frequency regardless of stimulus side. Conclusion : These results demonstrate that the low frequency-high intensity electrical stimulation applied dominant forearm can increase selectively only with the skin conduction velocity, which may be helpful for the activation of the sudomotor function of both hands by the activation of sympathetic nerve.

• 대한중풍순환신경학회지
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• 제14권1호
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• pp.23-30
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• 2013

■ Objectives This study is to examine change of gait parameters on shoes sole height(high heels, MBT shoes, house shoes) through gait analyzer. ■ Methods The subjects of this study were 12 women in their twenties. Gait analysis system is 5m in total length and gait is led to be comfortable. They put three kinds of shoes each and were led to walk 5m on gait analysis system. ■ Results There were significant differences in step length, single support and load response of gait parameters and in stride length and total double support at double support phase. ■ Conclusion Muscle activity differs in that different that shoes sole height and form because tibialis anterior muscle has strengthen and gastrocnemius has stretched. Therefore we think that patients with knee joint problem consider gait parameters when shoes select.

• 감성과학
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• 제13권1호
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• pp.103-110
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• 2010

미취학 아동의 창의적 사고, 다양한 경험 기반의 학습 활동, 그리고 인성 및 감성 중심의 교육에 대한 욕구를 충족시켜줄 수 있는 새로운 교육 방식으로써 체감형 교육 방식의 보급이 활발해지고 있다. 체감형 학습은 사용자의 움직임이나 감각을 통해 디지털 교육 콘텐츠를 조작하는 인간-컴퓨터 인터랙션을 활용한 교육 방식이다. 그러나 사람의 움직임이나 목소리 같은 음성/영상 인식의 정확도가 높지 않아 실제 교육 시스템 적용에는 한계를 보인다. 이러한 한계점의 극복을 위해 인간과 서비스 콘텐츠 사이에 매개체를 두고 이를 통해 사람의 움직임을 가속도, 각속도와 같은 숫자 값으로 변환/전송하여 인터랙션 하는 매개 인터페이스 개념이 제안된다. 본 연구에서는, 교육 시스템의 대상인 미취학 아동의 행동을 관찰하고 프로토콜 분석을 통하여 사용자 중심의 매개 디바이스 디자인 요구사항을 제안한다. 분석 결과, 미취학 아동들은 물체를 조작하는 데 서툴고, 무의식적으로 물체를 만지작거리거나 기대는 행동을 보였다. 또한 물건을 사용할 때 그에 종속되어 행동의 부자연스러움을 보였다. 따라서 체감형 교육을 위한 매개 디바이스는 사용자의 익숙하지 않은 조작을 보조할 수 있어야 하며, 디바이스 사용 중에도 자연스러운 행동을 유지할 수 있도록 디자인되어야 한다.

• The Journal of Korean Physical Therapy
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• 제32권2호
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• pp.132-136
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• 2020

Purpose: The talk test (TT) is an alternative, self-reported method for prescribing and guiding exercise training in both healthy adults and patients with cardiovascular and pulmonary diseases. This study examined whether the TT is a valid tool for evaluating the exercise intensity during two different types of aerobic activity on a treadmill or stationary bicycle in a healthy population. Methods: A total of ten subjects (six males and four females) who had no medical history related to musculoskeletal, cardiovascular, and pulmonary disorders were enrolled in this study. They were evaluated using the TT, which consisted of three-level of difficulties demanding cardiac loads while performing aerobic activities on a treadmill and bicycle ergometer across two consecutive days in a counterbalanced manner. During the activities, the psychophysiological response markers were collected in terms of the heart rate, oxygen saturation, rating of perceived exertion, and metabolic equivalents. Results: Statistical analyses revealed a significant difference in the between-subject variance regarding the TT level effect (p<0.05). On the other hand, no significant findings were detected on the between-group variance(p>0.05) and the TT level×group interaction (p>0.05). The independent t-test indicated no significant differences in heart rate, oxygen saturation, rating of perceived exertion, and metabolic equivalents at any levels of the TT in the two groups. The TT showed a strong correlation with the rating of perceived exertion. Conclusion: This study showed that the TT is a valid and alternative tool for evaluating the aerobic exercise intensity in a healthy population. In addition, differences in the psychophysiological response markers between two aerobic activities, treadmill and bicycle ergometer, were detected in the same exercise intensity scaled with the TT. The TT can be used to evaluate and prescribe the exercise intensity of aerobic activity in cardiovascular and pulmonary physical therapy.

• 한국산학기술학회논문지
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• 제10권12호
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• pp.3870-3878
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• 2009

본 연구는 119 구급대원들이 경험하는 폭력실태와 그에 따른 반응을 조사하기 위해 2009년 1월 1일부터 3월 2일까지 전라북도 지역의 구급대원 226명을 대상으로 설문조사한 결과이다. 첫째, 병원 전 응급의료 현장의 구급대원 모두가 주 1회 이상의 폭력을 경험하고 있으며, 62%의 구급대원이 물리적 폭력에 노출되어 있다. 이러한 폭력발생의 환자측 요인으로는 약물 또는 음주가 56.2%를 차치하였으며, 구급대측 요인으로는 응급의료인력 부족이 36.3%였다. 둘째, 구급대원의 42%가 5년 이내에 폭력예방과 대처방법에 대한 교육 경험이 없으며, 77.4%의 구급대원이 향후 폭력예방과 대처 방법에 대한 교육을 원하였다. 셋째, 폭력반응 점수는 감정적 반응 3.20점, 사회적 반응 2.22점, 신체적 반응 2.17점으로 조사되었고, 전체 폭력 반응의 평균은 2.53점으로 조사되었다. 넷째, 일반적 특성에 따른 폭력 반응 점수는 신체적 반응(t=-2.08, p=.038)과 감정적 반응(t=-7.13, p=.000), 전체반응(t=-4.764, p=.000)에서 통계적으로 유의한 차이를 나타냈으며, 연령에 따른 감정적 반응(t=4.257, p=.006)과 전체(t=2.932, p=.034)에서 통계적으로 유의한 차이를 나타냈다. 또한, 현재의 보유 자격별 점수는 사회적 반응(t=3.661, p=.000), 전체(t=8.130, p=.000)에서 유의한 차이를 나타냈고, 소방서별 폭력 반응 점수는 신체적 반응(t=9.987, p=.000), 감정적 반응(t=2.433, p=.012), 사회적 반응(t=6.738, p=.000), 전체(t=5.943, p=.000)에서 유의한 차이를 보였다.

• 생명과학회지
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• 제19권11호
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• pp.1568-1574
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• 2009

본 연구는 고혈압전단계자들에 대한 지속적인 건 스트레치시 시간에 따른 생리학적 반응을 분석하여 정상혈압자와 고혈압전단계자에 대한 EPR의 한 요소인 기계적 수용기가 혈압 및 혈역학 반응에 어떠한 영향을 주는지를 검토하였다. 그 결과, 안정 시와 시간에 따른 혈압 반응은 고혈압전단계자에 있어 SBP, MAP가 평균 20sec에서 통계적으로 가장 높은 경향을 보였으며(p<0.05), 정상혈압자에서는 SBP, DBP, MAP가 평균 45sec에서 가장 높은 경향을 보였다(p<0.05). 이는 고혈압 전단계자의 지속적인 수동적 건 스트레치 시 정상혈압자에 비해 Group III mechanoreceptors의 역기능에 따른 상승된 혈압 반응이 초기에 나타내었다고 사료된다. 또한 혈역학 반응에서 안정 시와 비교하여 지속적인 수동적건 스트레치 시 고혈압전단계자에서의 HR, SV, CO, TPR 모두 유의한 차이를 보이지 않았으나 정상혈압자에서 SV, CO가 통계적으로 유의한 차이를 보였다(p<0.05). 이는 CO, SV, HR, TPR이 정상혈압자에 비해 고혈압전단계자에 있어 높은 경향을 나타내었지만, 혈역학 반응은 본 연구를 통해 차이를 보이지 않아 앞으로 연구가 필요할 것으로 사료된다.

• Structural Engineering and Mechanics
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• 제48권4호
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• pp.519-545
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• 2013

An outline of the Timoshenko beam theory is presented. Two differential equations of motion in terms of deflection and rotation are comprised into single equation with deflection and analytical solutions of natural vibrations for different boundary conditions are given. Double frequency phenomenon for simply supported beam is investigated. The Timoshenko beam theory is modified by decomposition of total deflection into pure bending deflection and shear deflection, and total rotation into bending rotation and axial shear angle. The governing equations are condensed into two independent equations of motion, one for flexural and another for axial shear vibrations. Flexural vibrations of a simply supported, clamped and free beam are analysed by both theories and the same natural frequencies are obtained. That fact is proved in an analytical way. Axial shear vibrations are analogous to stretching vibrations on an axial elastic support, resulting in an additional response spectrum, as a novelty. Relationship between parameters in beam response functions of all type of vibrations is analysed.

• 대한간호학회지
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• 제41권2호
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• pp.191-196
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• 2011

Purpose: We investigated the effects of group III mechanoreceptors to cardiovascular responses in both pre-menopausal woman and post-menopausal woman during passive ankle dorsiflexion (PAD). Methods: Twenty healthy volunteers (10 post-menopausal women and 10 pre-menopausal women) were recruited for this study. Stroke volume (SV), heart rate (HR), cardiac output (CO), and total vascular conductances (TVC) were measured continuously throughout the experiment. To stimulate the group III mechanoreceptors, PAD was performed for one minute. Results: The results showed that mean arterial pressure (MAP) mediated by the mechanoreflex activation was significantly increased in both groups. However, this pressor response was significantly higher in post-menopausal women. This reflex significantly increased both SV and CO in pre-menopausal women, while there were no differences in post-menopausal women. There was no difference in HR in either group. The mechanoreflex significantly decreased TVC in post-menopausal woman, while there was no difference in pre-menopausal woman. Conclusion: The results indicate that the excessive pressor response mediated by the mechanoreflex occurs due to overactivity of group III mechanorecptors and the mechanism is produced mainly via peripheral vasoconstriction in post-menopausal women.

• 대한간호학회지
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• 제38권4호
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• pp.629-638
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• 2008

Purpose: This was a methodological research to develop an instrument to assess the emotional response of family members of physically restrained patients. Methods: A primary instrument with 68 questions was developed based on literature review and semi-structured interviews with family members. A group of experts revised individual questions and removed 4 irrelevant questions. This secondary instrument, then, was tested with 199 family members of physically restrained patients in intensive care units of a university hospital. The validity and reliability of the instrument were tested by factor analysis. Results: After item analysis, 3 questions with a correlation coefficient under .30 were discarded and the questions with a factor loading under .45 on Varimax Rotation were also removed. After factor analysis on the final 37 questions, 7 factors were identified; avoidance, shock, helplessness, grudge, depression, anxiousness, and acceptance. The total variance explained was 55.63%. The reliability of this instrument was 0.93 of Cronbach's alpha. Conclusion: This instrument was statistically reliable and valid to measure family's emotional response to physical restraints of the patients. This instrument can be useful in assessing the effects of nursing interventions for family members of restrained patients.