• 대한한방내과학회지
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• 제26권2호
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• pp.390-397
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• 2005

Background & Object: The aim of this study was to investigate the association of degree of fatigue and gastric motility, measured by EGG, with skin sympathetic tone or cardiovascular reactivity in patients with functional dyspepsia. Methods: Subjects were 56 patients with Functional dyspepsia and eight healthy people. Degree of fatigue was assessed by questionnaires consisting of subjective complaints of fatigue. Skin sympathetic tone was measured by Ryodoraku Score and Cardiovascular Reactivity was checked by Pulse diagnostic apparatus. Gastric motility was estimated by EGG. First, all patients were divided into two groups by Ryodoraku Score $40{\mu}A$(below and above). Second, they were subdivided into two groups by Cardiovascular Reactivity(decreased and increased or not decreased). Estimates were made on the extent differences of degree of fatigue or state of gastric motility in each group. Results: 1. Fatigue scores was significantly higher in females and in the Ryodoraku-Score-below-$40{\mu}A$ group. It was higher in the decreased cardiovascular reactivity group than the increased group, but to no significanct extent. Also, gastric motility was better in the Ryodoraku-Score-above-$40{\mu}A$, group than in the below group. Conclusions: These results suggest that degree of fatigue and gastric motility are associated with skin sympathetic tone, but not associated with cardiovascular reactivity, and that $40{\mu}A$ is a useful cutoff point in Ryodoraku Score for assessing degree of fatigue in functional dyspepsia patients.

• 한국정밀공학회지
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• 제29권10호
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• pp.1149-1156
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• 2012

In this study, we proposed the most efficient driving posture based on the analysis of quantitative muscular strength and fatigue degree according to posture. Since driving include complicated actions required by a variety of ability and cause by extremes concentration or strain, drivers tend to feel tired easily. However, drivers can't recognize the fatigue degree by themselves. Moreover, the method for measuring the quantitative fatigue degree exactly is quite difficult to be secured. 9 professional bus drivers were participated. We analyzed the quantitative legs' muscular strength when operating each pedal. And then we also analyzed the muscular strength and muscular fatigue degree according to driving pattern during bus driving. Therefore, we suggested the most efficient driving posture.

• 한국융합학회논문지
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• 제10권8호
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• pp.21-26
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• 2019

본 논문은 C4.5 알고리즘을 이용한 피로 인식 방법을 제안한다. 피로 평가에 대한 국내외 연구를 바탕으로 중국인의 생활습관 및 문화적 특성과 결합하여 피로 자기평가 척도를 완성하였다. 본문에서 사용한 척도는 58개 하위항목에 적용되어 있으며 피로의 유형과 정도를 평가하는 데 사용되었다. 이 항목들은 육체적 피로, 정신적 피로, 개인의 습관 및 피로의 결과 등을 측정하는 4가지 분류 항목에 포함된다. 본 연구의 목적은 피로 형성의 주요 원인을 분석하고 그에 따른 피로 정도를 인식함으로써 피로에 대한 주관적 관심을 증가시키고 과도한 피로로 인한 심뇌혈관계 질환의 위험을 감소시키는 데 있다. C4.5 알고리즘을 활용한 피로 인식 시스템의 인식률은 평균 85%로 나타나 본 제안의 유용성을 확인하였다.

• Ocean Systems Engineering
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• 제13권2호
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• pp.97-121
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• 2023

Through-the-thickness stress distribution in a tubular member has a profound effect on the fatigue behavior of tubular joints commonly found in steel offshore structures. This stress distribution can be characterized by the degree of bending (DoB). Although multi-planar joints are an intrinsic feature of offshore tubular structures and the multi-planarity usually has a considerable effect on the DoB values at the brace-to-chord intersection, few investigations have been reported on the DoB in multi-planar joints due to the complexity of the problem and high cost involved. In the present research, data extracted from the stress analysis of 243 finite element (FE) models, verified based on available parametric equations, was used to study the effects of geometrical parameters on the DoB values in two-planar tubular DYT-joints. Parametric FE study was followed by a set of nonlinear regression analyses to develop six new DoB parametric equations for the fatigue analysis and design of axially loaded two-planar DYT-joints.

• 대한한의학회지
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• 제43권3호
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• pp.139-149
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• 2022

Objectives: This study was designed to investigate the clinical effectiveness of Ikgibohyeol-tang(Yìqìbǔxuè-tāng) granules and Deer antler granules on fatigue symptoms. Methods: This is a 39-patient case series from a retrospective chart review of outpatients who were treated with Ikgibohyeol-tang granules and Deer antler granules at a Kyung Hee University Korean Medicine Hospital (Seoul) between 1st, January 2015 to 1st, August 2021. We reviewed the patients who complained of fatigue and analyzed changes in the degree of discomfort with fatigue and accompanying symptoms and HRV (Heart Rate Variability) score before and after treatment. Results: After taking Ikgibohyeol-tang granules and Deer antler granules, the degree of discomfort with fatigue and accompanying symptoms decreased significantly compared to before taking them. After treatment, Autonomic nervous system activity, Stress resistance, Heart Stability increased, and Stress index, Degree of fatigue decreased significantly. Conclusions: This study showed subjective symptoms and objective indicator (HRV score) were improved by taking Ikgibohyeol-tang granules and Deer antler granules.

• 대한한방내과학회지
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• 제25권3호
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• pp.492-496
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• 2004

This research was carried out to examine the correlation between the patients of functional dyspepsia and four constitution (Sasang Constitution). This research examined the correlation of functional dyspepsia versus Sasang Constitution, chronic fatigue, and mental stress in 100 cases of functional dyspepsia. No significant correlation was witnessed between average duration of dyspepsia and gender, and smorking. There was tendency of increased duration of indigestion in relation with length of chronic fatigue and the degree of mental stress. Significant difference was found between the patients with indigestion and Sasang Constitution types. Soeumin among the patients with indigestion were numerous and it was significantly different with normal people. Significant correlation was found between the period of indigestion and chronic fatigue and the degree of mental stress. Significant difference was found between the patients with indigestion and Sasang Constitution types.

• 부모자녀건강학회지
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• 제21권1호
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• pp.39-49
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• 2018

Purpose: This study was to investigate the effects of fatigue, postpartum family support on postpartum depression in postpartum women. Methods: Data were collected through structured questionnaires. The participants of this study were 123 postpartum women in B metropolitan city. The data were analyzed with the SPSS/Win 18.0 program, using descriptive statistics, in independent t-test, and stepwise multiple regression. Results: The subjects' degree of fatigue and postpartum depression had strong positive correlation (r=.623, p<.001). The subjects' degree of postpartum family support and postpartum depression had moderate negative correlation (r=-415, p<.001). Factors that affect postpartum depression were fatigue (${\beta}=.492$, p<.001), postpartum family support (${\beta}=-.234$, p=.001), pre-conception job (${\beta}=.222$, p=.001), Pregnancy depression (${\beta}=.177$, p=.007), Parity (${\beta}=.167$, p=.009). The explanation power was 55.0%. Conclusion: The study results indicate that it is necessary to various programs that can reduce postpartum mothers' fatigue and improve postpartum family support, in order to reduce the postpartum depression.

• 보건교육건강증진학회지
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• 제24권2호
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• pp.29-44
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• 2007

Objectives: The administrative employees of government were analyzed on their levels of fatigue symptoms to reveal the various factors related to them. Methods: The self-administered questionnaires were performed, during the period between Dec. 5th, 2005 and Jan. 31st, 2006, to 1,005 individuals in the service of general administration located in Daejeon Metropolitan City. The survey items included subjects' socio-demographic and job-related characteristics, health-related behavior, degree of job demand, job autonomy, social support in work, type A behavior pattern, locus of control, sense of self-esteem, and degree of fatigue. The study results were analyzed and the authors came to the following major findings, by univariate and multiple regression analysis with degree of fatigue dependent variables and other variables independent. Results and Conclusions: The study results indicated that the level of fatigue symptoms is so complicatedly influenced by variable factors as well as job-related characteristics such as socio-demographic characteristics, rank in work, or job career, to a greater extent, by job specifications and personality traits(type A) like whether performing health-related behavior or not, job demand, job autonomy, social support in work, or sense of self-esteem. Thus the effective strategy for stress reduction among governmental employees requires additional programs focusing on innovated job specifications and managed personality trait.

• 대한한의학회지
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• 제21권4호
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• pp.55-63
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• 2000

Objectives : Fatigue is a common symptom experienced by everyone. Nevertheless, clinicians have a tendency of ignoring it since fatigue itself is not considered a distinct disease. Actually, some limited research about chronic fatigue syndrome has been made within the country, but in reality, the probability of getting this syndrome is still considered very low due to the strict diagnosis standard. Therefore, there are tremendous numbers of patients who do not get enough attention from clinicians for their fatigue symptoms only because technically they do not belong to the syndrome. Therefore, a basic statistical database must be compiled and patient management programs must be developed. To accomplish this, we conducted this study by measuring degree of fatigue, clinical characteristics and processes of Oriental medical treatment of fatigue patients. Methods : The objects of this study were selected from the new patients who entered the tonification Clinic in Kynnghee Oriental Medical Center between August 11, 2000 and October 7, 2000. Their main complaint was fatigue and they did not suffer from any physical or mental problem either historically or at the time of the study. The objects were divided into two groups based on duration of fatigue; fatigue under 6 months is considered as acute fatigue and fatigue for longer than 6 months is chronic fatigue. The prepared survey sheet for measuring fatigue degree was distributed to the patients with their consent. The patients were divided again into three subgroups : the fIrst group went through 1st test and constitution test after tonification clinic; the second one went into constitution test skipping Ist measuring test; the third one went into only tonification clinic with neither 1st measuring test nor constitution test. Results : The total number of object patients was 47 and 80% of them were considered as 'fatigue patients' by the Chalder scale. Among all patients, 29.5% requested treatment for chronic fatigue, which is over 6 months. The average of scale II for all patients was 14.8, which indicates moderate fatigue. The averages of scale II-1, II-2, II-3 were respectively 7.5, 5.9, and 3.7 so the most common complaint was physical fatigue. When compared scale II based on occupations, student group scored 6.9 and office man group scored 8.5 in scale II-1, physical fatigue, but it was not significant. Conclusions : Numerous number of patients have come to Oriental medical centers or hospitals in Korea. Therefore, deeper statistical research and follow-up-monitoring are reqnired in the Oriental medical academic world. In this study, among all patients who entered the tonification Clinic in Kyunghee Oriental Medical Center, 29.5% requested treatment for chronic fatigue, which is over 6 months. This kind of statistical report is the first time trial in the Oriental medical academy world. Through these steps, more objective treatment can be made and standards of prognosis assessment can be established.tablished.

• 근관절건강학회지
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• 제6권1호
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• pp.73-84
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• 1999

This study was conducted to identify the characteristics of fatigue and its influencing factors in patients having chronic arthritis. The subjects of this study were 120 patients who visited a Rheumatis Center of H University Hospital. Data were collected from Aug. 9, 1997 to Feb. 5, 1998. For analysing data, SPSS/Win was used for descriptive statistics & Pearson's correlation coefficient, and Lisrel 8.0 was for path analysis. The findings were as follows : 1. Mean score of subjective fatigue was 5.36 and it means moderate degree of fatigue. 2. Fatigue showed positive relationship with pain & depression, and it showed negative relationship with ADL & self efficacy. 3. Fatigue was influenced by pain and depression. and was not influenced by ADL and self efficacy directly. But ADL and self efficacy influenced on fatigue through pain and depression indirectly. According to this findings. the significant influencing factors of fatigue were pain and depression, therefore the development of nursing intervention for relieving pain and depression would be needed.