• Safety and Health at Work
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• 제11권4호
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• pp.491-499
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• 2020

Background: Assembly lines work is frequently associated to work-related upper limb musculoskeletal disorders. The related disability and absenteeism make it important to implement efficient health surveillance systems. The main objective of this study was to identify self-reported variables that can determine work-related upper limb musculoskeletal symptoms-discomfort/pain-during a 6-month follow-up. Methods: This was a prospective study with a 6-month follow-up period, performed in an assembly line. Upper limb musculoskeletal discomfort/pain was assessed through the presence of self-reported symptoms. Uni- and multivariate logistic regression analyses were used to evaluate which self-reported variables were associated to upper limb symptoms after 6 months at the present and to upper limbs symptoms in the past month. Results: Of the 200 workers at baseline, 145 replied to the survey after 6 months. For both outcomes, "having upper limb symptoms during the previous 6 months" and "education" were possible predictors. Conclusion: Our results suggest that having previous upper limb symptoms was related to its maintenance after 6 months, sustaining it as a specific determinant. It can be a hypothesis that this population had mainly workers with chronic symptoms, although our results give only limited support to self-reported indicators as determinants for upper limb symptoms. Nevertheless, the development of an efficient health surveillance system for high demanding jobs should implicate self-reported indicators, but also clinical and work conditions assessment should be accounted on the future.

• 대한인간공학회지
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• 제29권3호
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• pp.311-320
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• 2010

This study aimed to examine the development and characteristics of the workers with upper limb musculoskeletal symptoms and disorders and to analyze the upper limb musculoskeletal symptoms and disorders for its relationship with the individual socio-demographic characteristics. This study investigated the effect on the limitations of physical activities using standardized surveillance tool and clinical diagnosis. Musculoskeletal symptoms and the limitations of physical activities were examined. The clinical diagnosis of musculoskeletal disorders were carried out by physical examination, radiological examination and electromyography-electroneuronography for 22 workers in kitchen hood assembly process and 50 workers in toggle process of leather product manufacturing. The proportion of workers with musculoskeletal disorders was higher and the DASH score was also statistically higher in female and aged workers with longer working hours, longer household working hours, less leisure/hobby activity and higher physical load. Physical activities component score increased in the following order: workers in normal health, workers with musculoskeletal symptoms, and workers with musculoskeletal disorders as clinically diagnosed. Score for each DASH component increased in the following order: sports/performing arts ability, social activities, specific physical functional activities, work or other regular daily activities, work ability, psychological activities, insomnia and upper limb symptoms. The overall and each component DASH scores were higher in workers with symptoms of status praesens and of more severity, and receiving medical intervention. Musculoskeletal symptoms and disorders are associated with individual socio-demographic characteristics, and DASH score for physical activities of upper limb was higher in workers with musculoskeletal disorders. Musculoskeletal symptoms and disorders have a remarkable epidemiological significance for physical activities, social activities, work or other regular daily activities, upper limb symptoms and insomnia, where work ability, sports/performing arts ability and preventive measure is needed.

• 대한인간공학회지
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• 제26권4호
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• pp.147-152
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• 2007

The aim of this study was to evaluate the musculo-skeletal symptomatic features of municipal sanitation workers and to compare differences of the musculo-skeletal symptoms by work types. We conducted descriptive cross-sectional survey concerning the musculo-skeletal symptomatic features of 315 street cleaners in Seoul and GyeongGi Province, Korea, during 2 weeks of September 2006. Questionnaires were consisted of general characteristics, occupational characteristics and musculo-skeletal symptoms. And we observed their works and evaluated their movement and posture by REBA. For work types, tools and subjective physical work loading, there were statistical difference whether or not NIOSH symptom positive on upper limb. Musculo-skeletal symptoms on upper limb were claimed from 43.2% of street cleaners, more than in 32.4% of cleaners. Musculo-skeletal symptoms on upper limb were reported higher in the group who felt their subjective physical work loading severe than in the otherwise group. The REBA results were over 'high risk stage' in street cleaners. Street cleaners had more repetitive motions than solid waste collectors on upper limbs. Works according to the criteria of musculoskeletal burdened work by the Ministry of Labor results were over 'high risk stage' of No. 2 and No. 4 in street cleaners. We found that street cleaners complained musculo-skeletal symptoms on upper limb more than solid waste collectors. This study suggests that it is necessary for street cleaners to carry out the prevention program of musculo-skeletal diseases. For street cleaner, the measure plans such as job rotation, automatic street sweepers, reducing work hours are helpful in preventing musculoskeletal symptoms on the upper limb.

• 한국직업건강간호학회지
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• 제13권1호
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• pp.19-29
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• 2004

Purpose: This study was conducted at small-to-medium-sized manufacture enterprises less than 300 employees. Method: For 167 workers in 12 small-to-medium-sized manufacture, we examined the self-recording questionnaires about general characteristics, health characteristics, occupational characteristics and subjective musculoskeletal symptoms designed by NIOSH. Result: Related factors of upper limb musculoskeletal symptoms were found in using of the PC except work, the speed control at working and inappropriate positions for neck, and that using of the PC except work, the degree of intensity at working and the speed control at working for shoulder, and that the degree of intensity at working, the speed control at working, inappropriate positions and excessive workforce for arm/elbow, and that the degree of intensity at working, the speed control at working, inappropriate positions, excessive strong and vibration for hand/wrist/fingers. Conclusion: As a result of multiple logistic regression analysis, musculoskeletal symptoms of neck were influenced by use of the PC except work, household work, and the speed control at working, symptoms of shoulder by using of the PC of except work and the degree of intensity at working, symptoms of arm/elbow by the speed control at working, and symptoms of hand/wrist/fingers by the degree of intensity at work and excessive workforce.

• Journal of Chest Surgery
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• 제48권4호
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• pp.246-251
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• 2015

Background: Upper limb ischemia is less common than lower limb ischemia, and relatively few cases have been reported. This paper reviews the epidemiology, etiology, and clinical characteristics of upper limb ischemia and analyzes the factors affecting functional sequelae after treatment. Methods: The records of 35 patients with acute and chronic upper limb ischemia who underwent treatment from January 2007 to December 2012 were retrospectively reviewed. Results: The median age was 55.03 years, and the number of male patients was 24 (68.6%). The most common etiology was embolism of cardiac origin, followed by thrombosis with secondary trauma, and the brachial artery was the most common location for a lesion causing obstruction. Computed tomography angiography was the first-line diagnostic tool in our center. Twenty-eight operations were performed, and conservative therapy was implemented in seven cases. Five deaths (14.3%) occurred during follow-up. Twenty patients (57.1%) complained of functional sequelae after treatment. Functional sequelae were found to be more likely in patients with a longer duration of symptoms (odds ratio, 1.251; p=0.046) and higher lactate dehydrogenase (LDH) levels (odds ratio, 1.001; p=0.031). Conclusion: An increased duration of symptoms and higher initial serum LDH levels were associated with the more frequent occurrence of functional sequelae. The prognosis of upper limb ischemia is associated with prompt and proper treatment and can also be predicted by initial serum LDH levels.

• 농촌의학ㆍ지역보건
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• 제44권4호
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• pp.209-219
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• 2019

이 연구는 치과위생사의 직무스트레스와 상지의 근골격계 기능 장애의 관련성을 알아보고자 수행하였다. 연구 대상자는 부산·경남 지역의 병원급 이상, 치과의원에 근무하는 치과위생사를 220명을 편의 표집하여 설문지를 배포한 후 최종 수거된 200부에서 응답이 부실한 2부를 제외하고 최종적으로 198명의 자료를 분석하였다. 설문문항으로는 일반적 특성, 직무스트레스, 작업관련 상지 근골격계 통증, 동작수행능력에 따른 기능평가 문항으로 구성하였다. 치과위생사의 대한 상지근골격계질환 통증은 목 39.4%, 어깨 54.6%, 팔/팔꿈치 14.7%, 손/손목/손가락 50.0% 였다. 그리고, 상지의 기능 장애는 치과위생사에서 호발하는 건강관련 문제로 불편한 작업자세와 상지 부위별 근골격계 통증을 보정하더라도 직무스트레스와 유의한 관련이 있었다. 즉, 팔꿈치를 굽혔다 펴는 반복 작업, 팔꿈치 부위에 통증이 있는 경우외에도 직무스트레스 역시 상지의 기능 장애와 관련이 있었다. 치과위생사의 직무스트레스는 이들의 상지 기능 장애로 이어져 결과적으로 의료서비스의 저하로 이어지므로, 장단기 계획하에 근무환경개선 등을 통하여 직무 스트레스를 감소시킬 수 있는 방안을 모색하여야 할 것이다.

• 대한인간공학회지
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• 제30권4호
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• pp.481-489
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• 2011

Objective: The aim of this study was to develop an ergonomic checklist (AULA: Agricultural Upper-Limb Assessment) which can assess the risks of the work-related upper limb disorders of farming tasks in Korea. Background: There are few assessment tools that reflect the current condition of agricultural works as of now. Method: AULA was developed as following three stages. First of all, a physiological experiment was conducted with selected 14 upper limb postures which are frequently occurred in farming tasks and then, an ergonomic checklist was developed with determining risk levels of each body posture based on the experimental findings. Lastly, the ergonomic checklist was validated by comparing with the existing assessment tools. Results: When comparing the AULA which was developed in this study with the existing assessment tools, it was found that the AULA may get over limits of the existing ones which are sensitive to particular postures, but aren't sensitive to the rest of them. Conclusion: It is predicted that the developed upper limb posture assessment tool which gets over the existing tools' limits and is proper for domestic farm work conditions, will help to reduce musculoskeletal disorders caused by farm works, by assessing farm works more easily and objectively. Application: By further developing the theoretical groundwork on the induction of muscular skeletal system symptoms relating to agricultural works, it is expected to improve the level of preventing and managing such muscular skeletal system symptoms in the field of agricultural and farming works, which is relatively less advanced in terms of labor difficulties.

• PNF and Movement
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• 제8권1호
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• pp.11-19
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• 2010

Purpose : The purpose of this study was to the effect of task-oriented arm movements and muscle enhancement program using elastic bands on limb muscle strength and activities of daily living of mitochondrial myopathy patient. Method : Single-subject experimental research design was applied to. AB Design was adopted. The study period was approximately four weeks. A baseline period of the three sessions of the experiment, the treatment period B, 3 sessions were conducted. Baseline period to observe the patient's daily life bardel index was measured as an independent feature, MMT as a limb muscle strength was assessed by measuring early. During the period of treatment with serabaendeu limb strength training 30 minutes after the break five minutes after the treatment using MMT limb muscle strength were evaluated. Task-oriented exercise program, and who exercise a week as a treatment was carried out in 30 minutes. Result : All of the scores for each sessional period of treatment when compared to base line and upper limb muscle strengthening exercises on the subjects that did not change significantly. Conclusion : If the muscles and nervous system involvement in patients with symptoms such as muscle weakness and paralysis of upper extremity functional use is difficult.

• 동의생리병리학회지
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• 제25권2호
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• pp.322-325
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• 2011

Motor paralysis by herpes zoster is rare. The incidence of herpetic motor involvement was reported to be between 0.5-31%. This case was reported to evaluate the effects of oriental medicine therapy on vocal cord paralysis and upper limb motor paralysis caused by herpes zoster. The subject was a 48-year-old man who suffering from hoarseness, right upper limb paralysis, right upper limb weakness, right post ear pain, headache. After our treatment, clinical symptoms were improved and VAS score significantly decreased. This study suggests that herbal medicine and acupuncture complex therapy is probably effective in the treatment of vocal cord paralysis and upper limb motor paralysis.

• 월간산업보건
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• 통권246호
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• pp.38-40
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• 2008