• Korean Journal of Acupuncture
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• 제40권3호
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• pp.99-108
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• 2023

Objectives : The aim of this study was to assess the quantitative characteristics of pressure pain threshold (PPT) and pressure depth (PD) at the abdominal conception vessel (CV) acupoints according to subjective digestive status and digestive discomfort levels, accomplished by comparing a large group of healthy men and women, using the modified digital algometer. Methods : A total of 1,504 healthy adults aged 19 years or older participated in this study. A questionnaire was administered to evaluate participants' digestive status and discomfort. PPT (kgf/cm²/s) and PD (mm) measurements were obtained at CV14, CV12, and CV4 acupoints using a modified digital algometer. General characteristics were analyzed using the chi-square test, and differences in PPT and PD were assessed using two-sample t-tests and ANCOVA. Results : Significant difference in PPT was found based on digestive status at CV14 and CV12 for both sexes, and in PD at CV14 for women. Women exhibited significant difference in PPT based on digestive discomfort at CV14, CV12, and CV4, while men showed significant difference at CV14 and CV12. Significant difference in PD was observed at CV14 and CV4 among women. Even after adjusting for age and body mass index, significant difference persisted in PPT based on digestive discomfort at CV14 and CV12 for both sexes. PD exhibited significant differences at CV14, CV12, and CV4 among women. Conclusions : Using the modified digital algometer, this study showed the significant difference of pressure pain threshold at the CV14 and CV12 acupoints for subjective digestive discomfort levels in healthy men and women.

• 한국산학기술학회논문지
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• 제13권1호
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• pp.264-273
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• 2012

중 고등학교 교사의 근골격계 불편증상과 관련 요인을 알아보기 위해 2010년 10월 1일부터 10월 15일까지 250명의 교사들을 대상으로 근골격계 불편증상 설문조사를 실시하고, 231명(남자 68명, 여자 163명)의 결과를 신체 각 부위별로 통계분석 하였다. 근골격계 불편증상의 관련요인으로 특히 주관적 건강상태가 높은 연관성을 보였고(OR 11.75, 95% CI, 3.56-38.78), 그 외 근무학교유형, 40세 이상, 2시간 이상의 가사노동시간, 8시간 이상의 VDT작업시간, 휴식여부가 유의한 상관성이 있는 요인들로 분석되었다. NIOSH 기준에 의한 근골격계 불편증상 호소율은 36.8%였고, 각 부위별 불편증상 호소부위와 빈도는 목 60명(26.0%), 어깨 70명(30.0%), 팔/팔꿈치 16명(6.9%), 손/손가락 31명(13.4%), 허리 35명(15.2%), 다리/발 17명(7.4%)으로 목과 어깨의 발생빈도가 높았다. 목 부위는 주관적 건강상태와 휴식유무, 어깨부위는 주관적 건강상태와 성별, 손/손가락 부위는 연령, 허리부위는 주관적 건강상태와 연령, 다리부위는 주관적 건강상태와 연령, VDT작업시간이 관련성 있는 요인들로 분석되었다. 사무직근로자에서 근골격계 질환은 간단한 스트레칭만으로도 예방 가능하다. 신체 각 부위별로 간단하고 적절한 운동을 통해 자신의 건강상태를 유지하고 올바른 작업 자세와 작업요건을 갖추고 작업시간 중간에 충분한 휴식시간을 가짐으로써 직무로 인한 근골격계의 과도한 긴장과 불편감 발생을 낮추기 위한 스스로의 노력이 필요하다.

• 농촌의학ㆍ지역보건
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• 제16권1호
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• pp.40-47
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• 1991

Musculoskeletal disorders are a major cause of occupational disabilities. Approximately thirty percent state that the major reason for an inability to work is a musculoskeletal problem. A farm work is associated with increased stress and trauma to joints. Chronic overuse injuries are a result of stresses that exceed the body's adaptive or healing capabilities. They can occur in bone, tendons and muscle-tendon-bone junctions. The aim of the investigation was to the study the frequency of pain, ache, and discomfort in the musculoskeletal system among farmers, to find possible correlations between these symptoms and various working positions and different working actions. A questionnaire was answered by 138 farmers. Of those who answered the questionnaire 82% had pain and discomfort from back, shoulders, arms in orders, The result showed that musculoskeletal pain predominate in the farming seasons, and of those who had pain and discomfort 89% thought that farm works had a correlation with the pain and discomfort of musculoskeletal system. But only 17% of quationnaire were put to periodic medical examinations, and 50% of those who had pain and discomfort consulted a doctor. Education in effective pain treatment should therefore be intensifide to ascertain that farmers in rural areas have satisfactory knowledge of the musculoskeletal pain as a chronic overuse syndrome.

• 대한인간공학회:학술대회논문집
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• 대한인간공학회 1995년도 춘계학술대회논문집
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• pp.165-172
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• 1995

Twenty six subject drove screws with a screw driver into thick wooden sheet at three vertical and horizontal locations. Subjects drive screws for 3 minutes at each location and they assessed the conditon using the psychophysical scale. An ANOVA showed that only vertical location was a signicant factor in determining the pain ratings of various body parts. Driving screws at elbow height on the vertical surface ans with the lower arm close to the body on the horizontal surface were the work locations with the smallest ratings of perceived pain and discomfort. Wearing gloves had significant effects on reducing the pain of the hand.

• 여성건강간호학회지
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• 제25권2호
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• pp.232-233
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• 2019

• 한국보건간호학회지
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• 제15권1호
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• pp.157-171
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• 2001

The study was designed to provide the fundamental information for understanding discomfort of bone marrow donors and for promoting an individual comfort by comparing the difference on discomfort between unrelated donors and related donors. The subject of the study was fifty related donors and thirty unrelated donors who was in the C University Hospital. This survey had been carried out and collected from October, 1998 to March, 1999. The scale of discomfort of donors associated with bone marrow donation were assessed by the questionnaire deviced by Kim Sang Dol and amended by the researcher. Data was analyzed by $x^2-test$, t-test, two-way ANOVA, and Pearson Correlation Coefficients. The results were as follows. 1. Considering the general characteristics of bone marrow donors according to gender, male was consisted of $60\%$ and female was consisted of $40\%$. Of those related donors are consisted for $62.5\%$ and accounted for $37.5\%$ of those unrelated donors. Considering the classification to the job, employee of company were major donors which was $35\%$, and next order was student, individual businessman, and housewife. Considering the education level. college students were $48.7\%$ and students who have less than high school level were $42.5\%$. 2. According to the above the results regarding discomfort of bone marrow donation, it is especially shown that the major cause for discomfort of bone marrow donors is on physical factor. The concrete examples for physical factor are pain in the region of bone marrow harvest and pain in the injection part by fluid therapy and blood-sampling, an immovability of the body after bone marrow harvest, and difficulties on walking. Considering physiological factor, there are an uneasiness about leading to injure their health, vague fear about the hospital. and a tedium at hospital. Environmental factors for discomfort of bone marrow donors are insufficient explanation for needle gauge and procedure of bone marrow donation and difficulty on following medical schedule. Therefore. it is necessary to establish more effective and systematically organized program for nursing intervention based on the research results. An effective program is only useful in getting rid of discomfort of bone marrow donors.

• 대한인간공학회지
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• 제26권4호
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• pp.91-101
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• 2007

The purpose of this study is to propose an optimal layout for the accelerator and brake pedals in sedan and SUV, and also to compare the pendant-type pedal with organ-type pedal. 12 male subjects participated in the experiment, the subjects were divided into 3 groups according to height percentile(under 50%ile, 50%ile to 75%ile, over 75%ile). Independent variables were seat height (H₃₀), X and Y coordinates of the center of accelerator and brake pedals and the x and y relative distance between two pedals. Dependent variable was subjective ratings for lower body discomfort. The response surface methodology using a central composite design was employed to develop a prediction model for lower body discomfort of each pedal. It is noticeable that the lateral position of the accelerator in all groups was not statistically significant. The optimal locations of both pedals were found to be distinct according to the percentile of subjects. X distance from accelerator to brake of both-type pedals is similar. But Y distance from accelerator to brake of organ-type is less about 2-3cm than that of pedant-type.

• 대한후두음성언어의학회지
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• 제31권1호
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• pp.39-44
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• 2020

We present four cases of aberrant carotid arteries manifesting as pharyngeal masses with throat discomfort. The symptoms of this anomaly are very similar to those of laryngopharyngeal reflux or globus pharyngeus. The identification of this anomalous artery is essential for the head and neck surgeon because the anomaly frequently manifests as a symptomatic pulsatile mass in the pharynx. All patients complained of foreign body sensation in the throat and showed protrusion of the posterolateral pharyngeal wall anteromedially. CT scans demonstrated that there were two cases involving the right common carotid artery (CCA) and two cases involving both CCAs in the retropharyngeal space. As conclusion, the aberrant course of the artery can occur on both sides of CCAs, and it can manifest as a pharyngeal mass. When the patients complain of foreign body sensation in the throat without any other abnormal findings in the pharynx, we should consider the possibility that it may be due to the aberrant course of the CCA and its bifurcations in the retropharyngeal space.

• 대한산업공학회지
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• 제28권2호
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• pp.223-231
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• 2002

Recently, work-related musculoskeletal disorders(WMSDs) have rapidly increased and have been a major issue in the field of industrial safety. Of several physical risk factors for WMSDs, which include postures, vibration, repetitive work, speed or acceleration of movements, etc., awkward postures have been known as one of the major causes of WMSDs. For reducing the potential for injury as a result of postures, cost effective quantification of the magnitude for physical exposure to poor working postures is important and needed. To do this, several postural classification schemes have been developed and used in industrial sites. It is known that perceived discomfort for joint motions and muscle strength for females were much less than those for males. However, the existing postural classification schemes were developed without considering these gender effects. This study aims to develop a new postural classification scheme for female workers, based on the perceived discomfort for joint motions. The result showed that there was significant difference between the schemes for female and male. It was also found that when compared with OWAS, RULA and REBA, postural load was quantified more precisely with the developed scheme. It is recommended that different schemes according to gender of workers involved in work be used in order to accurately evaluate postural load of work postures.

• 대한산업공학회지
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• 제24권2호
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• pp.167-173
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• 1998

Many workers like welders work in squatting postures with the object on the ground during an entire work shift. It is suspected that such prolonged squatting without any supporting stool would gradually cause musculoskeletal injuries to workers. This study is to examine the physical stress caused by the prolonged squatting and to recommend a safe work/rest schedule for a welding task with squatting posture based on the lab experiments. In this study, 8 healthy student subjects participated in the experiment. They maintained a squatting work posture for 16 minutes with 4 different stool height conditions: no stool; 10cm height; 15cm height; and 20cm height. Every 2 minutes, the discomfort was subjectively assessed with the magnitude estimation method for the whole body, lower back, upper leg and lower leg. Based on discomfort ratings, we found that a 10cm height stool relieved the workload most. Discomfort rating results also indicated that a 20cm height stool showed the highest workload, and the there were no difference in workload between a 15cm height stool and no stool. We recommend to use low height stools and to maintain such working postures no longer than 6 minutes for prolonged squatting tasks.