• Journal of the Korea Safety Management & Science
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• v.14 no.4
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• pp.51-58
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• 2012

This study attempted to evaluate the direct and indirect effect of emotional labor, job and psychosocial stress, and fatigue of beauty industry workers on their musculoskeletal diseases. The findings of this study showed that, among the workers with perceived symptoms of musculoskeletal diseases, the body part with the most commonly occurring symptom was the shoulder, followed by neck, low back, wrist, arm, foot and knee. As for the effect of work-related psychological factors on musculoskeletal diseases, it was found that the workers with musculoskeletal diseases were more affected by emotional labor and fatigue than non-symptom workers. It was also shown that when their job stress increased, the fatigue level also increased, though their psychosocial stress decreased. In addition, it was found that both direct and indirect effects of emotional labor on fatigue were high, and the indirect effect of job stress through fatigue on musculoskeletal diseases was significant.

• Journal of Advanced Navigation Technology
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• v.25 no.4
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• pp.280-285
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• 2021

The significance of pilots' fatigue and the attributed risk management had continuously increased over time as the airline industry expanded. Research and legislation efforts associated with pilot fatigue are being taking place actively all over the world. In the developed world such as the United States and European Union etc., the airline pilot fatigue is already being managed by considering the show up time, the number of take offs and landings made, resting period, jet lag etc., when computing flight duty time. In Korea, the flight duty time is only limited by the total number of hours per given period regardless of the flight conditions and environment. Such lack of regulation demand development of a fatigue management program. According to the survey taken from the airline pilots in Korea, it has been found that acquiring foreign policies directly may in turn, increase the risk of fatigue. This research suggest future studies regarding fatigue management program adapted exclusively to Korean domestic flight environment and culture.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.8 no.3
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• pp.324-333
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• 2001

Purpose: A quasi-experimental study was conducted to identify the effects on Self-efficacy, Fatigue, Coping Skills and Self-care Activities by Korean patients following a Systemic Lupus Erythematosus Self-Management (SLESM) Course. Methods : A two group pre-test and post-test design was used. The participants in the study were forty-one people with Systemic Lupus Erythematosis of which 21 subjects were assigned to the experimental group and 20 to the control group The experimental group received six weekly 2-hour group sessions, while the control group did not receive any intervention Outcome measures included self-efficacy, fatigue, coping skills and self-care activities. Baseline demographic and clinical variables did not differ between the two groups. Results : Patients who Participated in the self-management course showed significant decrease in fatigue (p= .038), improvement in self-efficacy (P= .001) and coping skills (p= ,048), increase in self-care activities (p= .003), and in the number of types of self-care activities(P= .048). Conclusion: Self-efficacy, coping skills and self-care activities improved and fatigue was reduced following the SLESM course. This study showed that a SLESM course is a good nursing intervention that can be offered in community settings.

• International journal of steel structures
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• v.18 no.4
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• pp.1284-1296
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• 2018

Carbon fiber reinforced polymer (CFRP), plates bonding repair method is one of the simple repair methods for cracked steel structures. In this study, the influence of width of CFRP plates on bending fatigue life of out-of-plane gusset joint strengthened with CFRP plates was investigated from the experimental and numerical point of view. In the bending fatigue test of cracked out-of-plane gusset joint strengthened with CFRP plates, the effect of width of CFRP plates on crack growth life was clarified experimentally. Namely, it was revealed that the crack growth life becomes larger with increasing the width of CFRP plates. In the numerical approach, the stress intensity factor (SIF) at the surface point of a semi-elliptical surface crack was estimated based on the linear fracture mechanics. Furthermore, the extended fatigue life of cracked out-of-plane gusset joint strengthened with CFRP plates was evaluated by using the estimated SIF at the surface point and the empirical formula of the aspect ratio of semi-elliptical crack. As the results of numerical analysis, the estimated fatigue life of the specimen strengthened with CFRP plates showed the good agreement with the test results.

• Asia-Pacific Journal of Business
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• v.13 no.3
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• pp.35-57
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• 2022

Purpose - This study aims to conceptualize the construct of social media (SM) fatigue. Design/methodology/approach - A qualitative approach is employed to understand how SM users currently perceive (or interpret) the goals of SM usage and to conceptualize SM fatigue and its dimensions. We collected data through in-depth interviews of three SM users and group discussions among eighty SM users. Findings - we draw a definition of SM fatigue from a resource view that excessive SM use might lead to SM fatigue by depleting the internal resources of SM users. Further, through the analysis of the qualitative data from interviews and group discussions, we find the multi-dimensional nature of SM fatigue and identify five dimensions of SM fatigue-fatigue from the social obligation to interact with people, the importance of self-appearance, the quality of information, the quantity of information, and undesirable events-and common sources of fatigue in each dimension. Research implications or Originality - The conceptualization of SM fatigue elaborated in this study could enable scientific exploration of the role of SM fatigue in users' attitudes or behavior formation and change. On a practical front, this study would be valuable to companies by facilitating systematic investigations of their customers' fatigue through the lens of the SM fatigue dimensions.

• Journal of Korean Biological Nursing Science
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• v.5 no.2
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• pp.5-12
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• 2003

Purpose : The purpose of this study was to identify the relationship between fatigue and physiological factors in patients on hemodialysis. Method : Data were collected between June 1 and 7, 2003 using a structured questionnaire which included general characteristics, Visual Analogue scale and laboratory result. Result : Fatigue score changes is the mean of predialysis fatigue score was 4.36 and postdialysis fatigue score 4.66. There were statistically significant differences in score of postdialysis to sex, education and admission. The relationship between predialysis fatigue and interdialytic weight gain showed a positive correlation. The relationship between postdialysis fatigue and Cr showed a negative correlation. Conclusion : Nursing Management program should be developed to fatigue factors in patients on hemodialysis.

• Journal of Ginseng Research
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• v.46 no.4
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• pp.543-549
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• 2022

Background: In physical activity or labor, the human body is in a state of high intensity stress, and all parts or physiological functions of the body respond positively to maintain or balance the need for movement. The human body has many physiological changes in the process of movement, and fatigue is the external manifestation of various complex changes inside the human body. Fatigue is also a physiological mechanism of self-protection after the body reaches a certain level of activity, which can prevent the occurrence of life-threatening excessive functional failure. The generation of fatigue is a very complex process, and its mechanism has not been concluded yet. Therefore, it is an important work to search and screen the effective components of natural plants that have anti-fatigue effect and to explore their mechanism. Methods: This was a 8-week, randomized, double-blind, placebo-controlled clinical trial. A total of 110 subjects who passed physical examination were included according to the scheme design, and randomly divided into a test group which was given KRG and a placebo control group. The calculation is carried out according to the standard of sub-high-intensity exercise test. Results: There was no adverse effect on safety index of subjects after taking red ginseng capsule. After KRG treatment, subjective strength grade is significant lower than placebo treatment. Blood lactic acid content is significantly get lower after trial in KRG group, and significant lower than placebo group. Creatine phosphokinase(CK) content is significantly get lower after trial in KRG group, and significant lower than placebo group. Conclusion: According to the criterion in the test scheme, the result shows that KRG is helpful on relieving physical fatigue.

• Safety and Health at Work
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• v.13 no.4
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• pp.408-414
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• 2022

Background: This study aimed to determine and define the elements of an Fatigue Risk Management System (FRMS) diagnostic tool to assist an organization in systematically assessing its level of implementation of an FRMS. Methods: A modified Delphi process was used involving 16 participants with expertise in sleep science, chronobiology, and fatigue risk management within occupational settings. The study was undertaken in two stages 1) review of elements and definitions; 2) review of statements for each element. Each stage involved an iterative process, and a consensus rule of ≥ 60% was applied to arrive at a final list of elements, definitions, and statements. Results: Stage 1: a review of elements (n = 12) and definitions resulted in a final list of 14 elements and definitions with a consensus of ≥ 60% achieved after 2 Delphi rounds. Stage 2: a review of statements (n = 131) resulted in a final list of 119 statements with a consensus of ≥ 60% achieved after 2 Delphi rounds. Conclusion: The final FRMS diagnostic tool will enable an organization to systematically assess the level of implementation of their current FRMS and identify gaps and opportunities to reduce risk.

• Journal of Korean Academy of Nursing
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• v.37 no.6
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• pp.855-862
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• 2007

Purpose: The purpose of this study was to identify the factors influencing fatigue in patients with chronic obstructive pulmonary disease. Methods: A descriptive correlational study design was used. A convenience sample of 125 subjects was recruited from the outpatient respiratory clinic at a large university hospital. Data was collected from June to October, 2005 using structured questionnaires, an oxygen saturation test, a 6-minute walking test, and a pulmonary function test. Results: Subjects had a slightly low degree of fatigue. The fatigue showed a significant correlation with emotion(r=.589, p= .000), dyspnea(r=.304, p= .001), self-efficacy(r=-.278, p= .002), and symptom experience(r=.238, p= .008). Emotion(34.7%) and dyspnea(5.8%) were significant predictors to explain fatigue. Conclusion: This study provides comprehensive understanding of the influencing factors on fatigue in patients with chronic obstructive pulmonary disease. Nursing interventions to decrease negative emotion and dyspnea for management of fatigue is suggested.

• The Journal of Korean Medicine
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• v.30 no.6
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• pp.80-85
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• 2009

Objective: This study aimed to build an overview of randomized clinical controlled trials (RCTs) for chronic fatigue-related symptoms to extract the useful data for management of patients and development of therapeutics using Korean traditional medicine in the future. Methods: All RCT-derived papers for chronic fatigue-related symptoms were collected via PubMed Database. We surveyed elementary information of RCTs such as clinical question, study design, and its quality and results. Results: A total of fifty-three RCTs met these review criteria. Most of the RCTs were performed in Western countries, particularly the UK and USA. The major portion of RCTs focused on chronic fatigue syndrome using immune modulators, psychotherapeutic and anti-depressants. Five RCTs using complementary and alternative medicine, including herbal remedies, showed positive results. Conclusions: Fatigue-related symptoms are a main target of Oriental medicine. This study provides helpful information for planning clinical study of chronic fatigue-related symptoms using traditional Korean medicine.