• 한국융합학회논문지
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• 제8권7호
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• pp.75-84
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• 2017

이 연구는 철도신호분야 현장근무자를 대상으로 자기효능감 세부영역과 피로 세부영역 간의 융합적 관계를 구조방정식 모형을 통해 규명하고자 하였다. 일반적 자기효능감, 사회적 자기효능감은 각각 신체적 피로와 정신적 피로에 부(-)의 영향을 미칠 것이라는 가정하였다. 철도 신호분야 현장 근무자들을 대상으로 자기기입식 설문을 실시하여 최종 341건에 대해 분석을 실시하였다. 연구결과, 일반적 자기효능감은 신체적 피로와 정신적 피로에 각각 부(-)의 영향을 미친 반면, 사회적 자기효능감은 신체적 피로와 정신적 피로에 영향을 미치지 않는 것으로 확인되었다. 따라서 일반적 자기효능감을 높이기 위한 회사차원의 지원을 강화한다면 연구대상자들의 피로를 감소시키는데 효과적일 것이다.

• 대한한방내과학회지
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• 제32권3호
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• pp.411-424
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• 2011

Objectives : This study was performed to investigate the antifatigue effect of SM-2000 on fatigued and stressed people. Methods : This study was carried out on 23 healthy people who have fatigue and stress. 11 people as the mentally-stressed group were examined by subjective symptoms of fatigue and blood cortisol test. They drank SM-2000 for seven days. SM-2000 was made up herbs which were used for fatigue. After that they were again examined by subjective symptoms of fatigue and blood cortisol test. 12 people as the physically-fatigued group were examined with fatigue biomarkers and exercise test. They also drank SM-2000 for seven days. After that they were again examined with fatigue biomarkers and exercise test. Results : Cortisol level, subjective symptoms of fatigue scores and physical, mental, and neuro-sensory symptoms of fatigue scores after drinking SM-2000 were not significantly increased compared with before drinking SM-2000 in the mental stressed group. SM-2000 significantly decreased lactate, glucose, and phosphorous levels, and running time after drinking SM-2000 was significantly suppressed compared with before drinking SM-2000 in the physically-fatigued group. Conclusions : On the basis of these results, SM-2000 had a clinical antifatigue effect in physically-fatigued people.

• 항공우주의학회지
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• 제31권2호
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• pp.38-44
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• 2021

Purpose: This study aimed to identify the prevalence of fatigue and its associated factors leading to the fatigue among Korean commercial airline pilots. Methods: An anonymous, web-based questionnaire collecting data on sleep related characteristics was completed by airline pilots. The final 1,029 samples of completed questionnaires were analyzed. The association of the risk factors with fatigue was determined using logistic regression analysis. Results: The prevalence of fatigue was 60% (Fatigue Severity Scale index≥3.2), disturbed sleep 28% (Pittsburgh Sleep Quality Index≥9), daytime sleepiness 17% (Epworth Sleepiness Scale≥10), and sleep apnea (Berlin Questionnaire≥2) 11%. The fully adjusted logistic regression showed that quality of life (odds ratio [OR]=0.16, confidence interval [CI]=0.11-0.24), daytime sleepiness (OR=1.26, CI=1.18-1.34), sleep quality (OR=1.44, CI=1.29-1.61), mental workload (OR=1.10, CI=1.05-1.14), vigorous physical activity (OR=0.82, CI=0.72-0.92), late starts (OR=1.25, CI=1.06-1.46) and average weekly flying hours (OR=1.02, CI=1.00-1.03) were associated with higher levels of fatigue. Conclusion: Lower quality of life, disturbed sleep, more subjective sleepiness, shorter sleep duration, higher mental workload, less vigorous physical activity, frequent late starts, and longer flying hour were shown to be risk factors for fatigue in airline pilots. These findings should be taken into account in the development of sleep and fatigue countermeasures for airline pilots.

• 디지털융복합연구
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• 제13권3호
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• pp.221-229
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• 2015

본 연구는 병원행정직 근무자들의 인성요인, 정신건강요인 및 피로와 직무스트레스 간의 관련성을 파악하고 직무스트레스에 영향을 미치는 요인들을 측정하였다. 2014년 6월 1일부터 2014년 7월 31일까지의 조사기간에 전라북도 지역 30개 병원의 재직자 189명을 조사 하였다. 직무스트레스는 인성요인, 정신건강요인 및 피로와 유의한 양의 상관관계를 보였다. 위계적 다중회귀분석 결과, 남성보다는 여성에서, 우연신념이 높을수록, 외적통제신념이 낮을수록, 자아존중감이 낮을수록, 상황적 피로수준이 높을수록, 사회심리적 스트레스 수준이 높을수록, 우울수준이 높을수록 직무스트레스가 높았으며 이들의 설명력은 60.4%이었다. 공분산 구조분석 결과, 인성, 정신건강 및 피로 요인과 직무스트레스의 인과관계가 확인되었으며, 인성요인은 정신건강요인이나 피로수준보다는 직무스트레스에 더 큰 영향을 미치는 것으로 나타났다.

• 해양환경안전학회지
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• 제15권3호
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• pp.217-222
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• 2009

선박을 운항하는 항해사의 피로도(Fatigue)는 안전항해와 매우 밀접한 관계를 가지고 있다. 또한, 당직항해사의 피로는 중대한 해양사고를 초래할 수 있다. 본 연구에서는 항해사의 근무환경, 피로유발요인 및 피로증세 등에 대하여 문헌조사를 실시하였다. 그리고 실습항해사를 대상으로 졸음, 정신적 육체적 작업부하도에 대한 피로도 관련 설문조사를 실시하고 그 결과를 분석하였다. 마지막으로 이와 같은 피로도 조사 및 설문조사 분석결과를 바탕으로 항해사의 피로도 분석항목을 선정하고 이를 기반으로 향후 항해사의 업무수행능력을 평가하기 위한 피로도 분석모델을 제안하였다.

• 대한한의학회지
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• 제34권1호
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• pp.29-34
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• 2013

Objectives: This report aimed to demonstrate effect of human placental extract (HPE) pharmacopuncture in students suffering fatigue due to hard work and mental stress. Methods: Thirty-four college students, preparing for the final-term exam, received pharmacopuncture of HPE into Kwanwon (CV4) subcutaneously twice a week for 7 weeks. After every pharmacopuncture of HPE, degree of fatigue was surveyed by questionnaire including physical condition, physical endurance, concentration and memory. Results: Pharmacopuncture of HPE into CV4 gently improved physical condition, physical endurance, concentration and memory. Improvement of physical condition was especially positively correlated with the increasing number of pharmacopuncture of HPE into CV4 as confirmed by calculation of Pearson coefficient. Conclusions: Pharmacopuncture of HPE into CV4 alleviated fatigue in the students from hard work and mental stress.

• 한국식생활문화학회지
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• 제9권1호
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• pp.43-51
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• 1994

The purpose of this study is to investigate dietary pattern and health status related to food habit and degree of fatigue of evening college students. A sample of 476 evening college students in Chonbuk area were surveyed by questionaire examining their food habit, nutrient intakes, degree of fatigue and cornell Medical Index(CMI). In this study, the male and female students were classified into two groups, respectively, the first group is not having jobs and the second is having jobs. The results were summerized as follows: 1. Evaluation status of food habit score indicated that the subjects were included in Fair and Poor group generally. Food habit score of female was significantly higher than score of male. For female students, food habit score of job group was significantly higher than score of non-job group(p<0.05). 2. Average intakes of calorie and protein were 1869.1 kcal and 68.3 g in male and 1612.4 kcal and 58.3 g in female. Other nutrients, such as vitamin $B_1$(1.1 mg), vitamin $B_2$(1.2 mg) and ascorbic acid(41.0 mg) in male, iron(13.5 mg), vitamin $B_2$(1.1 mg) and ascorbic acid(46.5 mg) in female were lower than the korean RDA. 3. The means of degree of physical, mental, neurosensory and CMI scores were 3.1, 1.9, 1.5 and 4.7 in male and 4.0, 2.4, 2.4 and 7.1 in female, respectively. For female students, though significancy was found between job group and non-job group in physical, neurosensory fatigue and CMI score(p<0.05, 0.01), but there were not significant differences in these score for male students. 4. There were significant positive correlation between three types of fatigue and CMI, whereas score of food habit was negative correlation for degree of physical, mental fatigue and CMI. The intakes of protein and vitamin $B_1$ were significantly related to the mental, neurosensory fatigue and CMI.

• 대한안전경영과학회지
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• 제16권3호
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• pp.35-44
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• 2014

This study empirically examines how much effect levels of fatigue and stress of a construction worker have on disaster risks from the perspective of human factors concerning construction disaster risks. To achieve the purpose of this study, a survey was conducted with respect to construction workers working at large construction sites within the metropolitan area. The retrieved survey data were analyzed by using the statistical software programs, SPSS 18.0 and AMOS 8.0. The results of this study do not definitively lead to the conclusion that the level of fatigue or stress of construction workers result in disaster risks. However, it does show that the results vary depending upon the individual approach and treatment of stress and fatigue. In particular, this study revealed that disaster risk levels could increase through unsafe behavior intentions which were established as a mediator variable. Also, with respect to unsafe behavior intentions of construction workers leading to disaster risks, when examining the results that the level of mental fatigue, occupational stress and social-psychological stress of construction workers had a greater significant effect than the level of physical fatigue, this study demonstrates the importance of psychological and mental issues that could be easily overlooked with respect manual labor workers.

• 한국국방경영분석학회지
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• 제24권1호
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• pp.41-57
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• 1998

Since the aircraft has a property of moving in the three-dimensional space, it may cause personally and financially critical damage in the case of an accident. Among the causes of aircraft accident, human factor has occupied about 70% of all accidents. Specially, fatigue among human's problems has been studied earlier than any other factor. Fatigue has been the cause of 75% of accidents that are related to human factor. So many studies have been conducted. But the direction of these studies mainly attach importance to the sleep loss and circadian rhythm. Limitation for flight time of ICAO is 8 hours per day, civil airlines in domestic line also adopt the limitation. But this rule is not based on human's performance but compromise between labor and management. The long-haul flight brings about a mental block to pilot. This mental block decreases performance of pilot and loses a lot of important information. So this may cause many accidents. This paper is to offer optimal flight time according to the amount of fatigue due to increasing flight time. The optimal flight time is searched through the field experiment. The experiment has adopted two methods. One is to examine pilot's objective fatigue accumulation rate through the critical fusion frequency, and another is to investigate pilot's subjective fatigue feeling through the fatigue subjective symptoms investigation table.

• 한국치위생학회지
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• 제14권2호
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• pp.131-137
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• 2014

Objectives : The aim of the study is to investigate anxiety, fatigue and stress of dental hygiene students in clinical practice and to improve the psychological support program. Methods : A self-reported questionnaire was filled out by 428 dental hygiene students in 4 universities in Gwagju and Jeonnam. Data were analyzed for anxiety, stress and fatigue, general characteristics using SPSS 18.0 program for descriptive statistics, ANOVA, and correlation. Results : Saliva suction showed the most high score in treatment($mean{\pm}SD=2.92{\pm}1.13$) and was followed by children dental care($2.79{\pm}1.21$), preventive dental care($2.38{\pm}1.04$), maxillofacial radiology($2.35{\pm}1.15$). During the clinical practice, students felt uneasy when they stayed in relative home(p<0.05). Poor interpersonal relation(p<0.001), poor health condition(p<0.01), low satisfaction with major(p<0.01), the other cause of major choice(p<0.01) influenced on their stress. Satisfaction with major was closely related to clinical practice performance, anxiety, physical fatigue and mental fatigue. Conclusions : In order to reduce physical, mental, neuro sensory fatigue of students in clinical practice, it is recommended to reinforce the patient care etiquettes in curricula.