• Journal of Korean society of Dental Hygiene
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• v.9 no.1
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• pp.141-151
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• 2009

Cognitive degree of musculoskeletal symptoms and existence (or non-existence) of experience was conducted following dental hygienists' health habits, heath state and working environment targeting dental hygienists who were working for the dental clinics in Masan-si, Changwon-si and Jinhae-si in Gyeongsangnam-do for one year or more. The research findings were as follows. 1. Cognitive degree of musculoskeletal symptom following general characteristics was the highest among the subjects who were 40 years old or above. 2. As for the education level, cognitive degree of musculoskeletal symptoms was high while prevalence was low, which were statistically significant when the education level was higher. 3. Cognitive degree of musculoskeletal symptom was high when the subjects exercised, and cognitive degree of musculoskeletal symptom and prevalence were significantly high when they are engaged in leisure activities or hobbies. 4. Prevalence of musculoskeletal symptoms was statistically high if they are afflicted with disease, if they feel burdened by their job, if they suffer from considerable physical fatigue, if they feel chronic fatigue or if they feel that their health state is poor. 5. Cognitive degree of musculoskeletal symptom and prevalence were higher, which was statistically significant, when the number of years worked was higher. 6. Cognitive degree of musculoskeletal symptom was higher, but prevalence was lower when the time that they were seated was longer. This research demonstrated that the musculoskeletal disorders related to their job that afflicts the dental hygienists is not caused by one element, but it is possible to see that the musculoskeletal disorders results from the interaction of the diverse elements that are interrelated such as the subjects' characteristics and health habits and heath state, working environment and so forth including inappropriate work related movements. To this, dental hygienists need to improve their health habits so that they can form proper health habits that will ensure health in every day life on their own with the improvement of their every day life habit and positive self-evaluation to act on the health promotion behaviors, education and publicity, and measures to prevent and to manage musculoskeletal disorders in overall need to bepursued after in an active manner.

• Journal of Preventive Medicine and Public Health
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• v.31 no.1 s.60
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• pp.127-138
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• 1998

The purpose of this study is provide a basic data for the prevention and management of musculoskeletal symptoms in Korea seamen. 569 seamen's questionnaire had been acquired at Korea Marine Training and Research Institute from February 24 to March 31 in 1997, The results of this study were as follows; Prevalence in musculoskeletal symptom within recent 12 months was 68.5% . It was 3% in seamen who had graduated from colleges or universities and 56.0% in seamen who had graduated from elementary school(p<0.01). The more working hours(p<0.01), servies on the vessel(p<0.01), and the less job satisfaction(p<0.05), the higher prevalence of musculoskeletal symptoms were. The distribution of musculoskeletal symptoms by the part of the body was turned out as Back ; 43.6%, knee : 23.9%, shoulder : 19.3%. The officers had more frequency of symptom around the neck than the ratings(p<0.01) and the seamen who work at the engine room were more frequent in elbow than those at deck department(p<0.05). In the duration of pain, 55.4% were less than one week, 20.6% less than 30 days, and 24.0% 30 days and more. the cause of symptom was turned out as 34.5% by excessive hard work and 30.1% was unknown. for the treatment of the musculoskeletal symptoms, 40.3% with symptomes did not have any medical treatment, 27.6% was self-treated and 22.7% was treated at hospital. This study shows that musculoskeletal disorders are seamen's important health problem and they can not properly take medical service due to the out of home for a long period as characteristics of occupation.

• Journal of Korean Dental Hygiene Science
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• v.1 no.1
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• pp.1-10
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• 2018

From October 01, 2017 to October 30, 2017, Busan. The following are the results of 185 studies on the identification of lifestyle habits and subjective symptoms of musculoskeletal disorders in Kyungnam dental hygienists. 1. The dental hygienist's lifestyle showed more regular exercise with age, and there was a significant difference according to age(χ²=34.17, p<.001). 2. The housework habits were more than 1 hour for older dental hygienists, and there were significant differences according to age(χ²=66.09, p<.001). 3. In the case of musculoskeletal diseases with or without age, dental hygienists experienced musculoskeletal disorders in the past and showed a significant difference according to age(χ²=39.51, p<.001). 4. 35~39 years old Dental hygienist There were present musculoskeletal diseases and there was a significant difference according to age(χ²=45.44, p<.001). 5. There was a significant difference between the dental hygienists aged 35~39 years due to musculoskeletal disorders and age(χ²=24.19, p<.001). As described above, the dental hygienist needs to adjust the work in consideration of the year, and in the case of low annual, measures are needed to prevent the disease.

• The Journal of the Korea Contents Association
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• v.15 no.7
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• pp.314-321
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• 2015

The purpose of this study is to investigate musculoskeletal symptoms and job stress of physical therapists in their 20s who are responsible for therapeutic exercise and to understand the correlation between the two. This study conducted a research on 144 subjects based on the measurement tools provided by national institution. The results are as follows. Many subjects were experiencing musculoskeletal symptoms and disorder in their hands/wrists/fingers, shoulders, and waist with high proportionate of subjects experiencing the symptoms and disorder in their right hand/wrist/finger. Among job stress, job environment, job requirement, and compensation had significantly positive correlation with physical burden(r=.297~.392, p=.000). In particular, shoulder pain intensity has significantly positive correlation with job requirement, duration of pain in hand, wrist, and fingers as well as workplace culture(r=.331~.478, p=.003~.009) which indicates that musculoskeletal symptoms are some what correlated with job stress. Based on this study, it is necessary to show more concern and make an effort to manage musculoskeletal symptoms and job stress.

• Journal of Korean Library and Information Science Society
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• v.42 no.4
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• pp.243-262
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• 2011

The aim of this study was to investigate musculo-skeletal symtoms and working conditions of university library's librarians to search for the risk factors related to musculo-skeletal symptoms. The study subjects were 266 librarians who were working at 20 university libraries. A self-recording questionnaire was used to investigate the general characteristics, working conditions, job intensity, job satisfaction and stress, education of musculoskeletal disorders and nature of musculoskeletal symptom. Statistical analysis was done by using t-test and multiple regression analysis. The complaint proportion of self-reported positive musculoskeletal symptoms was 62.5% and that of severe musculoskeletal symptoms was 26.1%. Multiple regression analysis showed that low satisfaction of working conditions, high job intensity, irregular mealtime, job stress were closely related to the positive rate of musculoskeletal symptoms. Therefore, it will be necessary to make efforts to reduce the prevalence of musculoskeletal disorders improving working conditions and mitigating the job intensity.

• Korean Journal of Occupational Health Nursing
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• v.30 no.3
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• pp.120-131
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• 2021

Purpose: This study aimed to compare the effects of an 8 week, self-managed, app-based and poster-based stretching program on musculoskeletal symptoms, flexibility, stretching frequency, self-efficacy, social support, and musculoskeletal disorder knowledge in small manufacturing business workers. Methods: This was a cluster randomized, two-group pretest-posttest design. Workers were assigned to either an app-based (n=20) or a poster-based (n=25) stretching intervention. Both groups received an educational class. The app group also received mobile phone text messages and an app with stretching videos, stretching alarms, stretching records, and information on musculoskeletal disorders. The poster group received workplace stretching posters. Data were collected from April to September 2018 and analyzed with the 𝑥² test, paired t-test, and independent t-test. Results: There was only a significant difference in social support. Significant increase in flexibility and musculoskeletal symptoms were noted for both groups, but social support and musculoskeletal disorder knowledge were significantly changed only in the poster group. More than half of the workers practiced stretching at least 3 times a week. Conclusion: The 8 week, self-managed, workplace stretching program was effective to increase flexibility and stretching frequency to at least 3 times a week. However, effective interventions for musculoskeletal symptoms could not be identified.

• Korean Journal of Occupational Health Nursing
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• v.23 no.4
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• pp.227-234
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• 2014

Purpose: This study was conducted to understand the subjective symptom rate of musculoskeletal disease of male taxi drivers and comprehend general features, health behavior features, and factors related to the subjective symptoms of musculoskeletal system depending on the level of job stress. Methods: The participants were 206 male taxi drivers from 4 transportation companies in the Seoul and Gyeonggi areas. The investigation was conducted from July 20th 2012 to August 20th 2012 through a self-administered questionnaire survey. Results: The participants who exercised less than three times per week complained about the subjective symptoms of the musculoskeletal system (p=.016) 13.770 times as more as than those of the participants who exercised more than three times per week the participants who had a higher level of job stress complained about the subjective symptoms of the muscular skeletal (p=.011) 1.051times as more as than those who had a relatively lower level of job stress. Conclusion: This study recommends that it is necessary to provide exercise programs and arrange various plans reducing job stress to prevent muscular skeletal disease and minimize the disease susceptibility of taxi drivers.

• Safety and Health at Work
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• v.14 no.1
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• pp.66-70
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• 2023

Background: Online teaching and learning extend the duration of using gadgets such as mobile phones and tablets. A prolonged usage of these gadgets in a static position can lead to musculoskeletal disorders (MSD). Therefore, this study aims to identify the risk factors related to musculoskeletal symptoms while using gadgets during work from home due to the COVID-19 pandemic. Method: A cross-sectional survey with online-based questionnaires was collected from the University of Indonesia, consisting of lecturers, students, and managerial staff. The minimum number of respondents was 1,080 and was defined by stratified random sampling. Furthermore, the dependent variable was musculoskeletal symptoms, while the independent were age, gender, job position, duration, activity when using gadgets, and how to hold them. Result: Most of the respondents had mobile phones but only 16% had tablets. Furthermore, about 56.7% have used a mobile phone for more than 10 years, while about 89.7% have used a tablet for less than 10 years. A multivariate analysis found factors that were significantly associated with MSD symptoms while using a mobile phone, such as age, gender, web browsing activity, work, or college activities. These activities include doing assignments and holding the phone with two hands with two thumbs actively operating. The factors that were significantly associated with MSD symptoms when using tablets were gender, academic position, social media activity, and placing the tablet on a table with two actively working index fingers. Conclusion: Therefore, from the results of this study it is necessary to have WFH and e-learning policies to reduce MSD symptoms and enhance productivity at work.

• Journal of Korean society of Dental Hygiene
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• v.12 no.1
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• pp.67-79
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• 2012

Objectives : The study was carried out to find out the experience of musculoskeletal disorder symptoms of dental hygienists and evaluate the risk with ergonomic evaluation method(RULA). Methods : The subjects in this study were 344 dental hygienists working at dental clinics and general hospitals in Seoul, Gyeonggi, Daejeon and Chungnam/Chungbuk. The data were collected through the self-questionnaire survey from July 26th 2010 to September 30th 2010. Results : The results showed that those who working at dental hospital, network dental clinics, with 1-5 years of clinical experience, long working hour and sitting hour, no rest hour, more physical and mental burden had higher rate of the experience of musculoskeletal disorder symptoms compared with other groups. The final score of RULA evaluation results was 6 on average requiring continuous observation and urgent demand for work improvements. According to the result of RULA evaluation by work, the orthodontic clinics were 4.5, prosthodontic clinics were 5.0, and dental surgery clinics were 6.8 being the most risky. Conclusions : The study showed high complaints rate on musculoskeletal disorders in dental hygienists. Thus, various measures including provision of proper working and rest hours, use of ergonomic working equipments, strengthening the health education for desirable working posture and the development of musculoskeletal disorder prevention program should be needed.

• Journal of Korean Society of Occupational and Environmental Hygiene
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• v.33 no.4
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• pp.447-454
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• 2023

Objective: This study aims to investigate the impact of changes in working conditions on job-related stress and musculoskeletal disorders using the results of seven surveys conducted at a single workplace from 2004 to 2022 regarding factors hazardous to the musculoskeletal system. Additionally, the study aims to propose alternative methods of investigating factors hazardous to the musculoskeletal system. Methods: A car parts manufacturing plant where the same survey was taken seven times from 2004 to 2022 was selected and the survey data was analyzed. The main contents of the survey were weekly working hours, Borg's scale, work intensity, job-related stress, and the prevalence of musculoskeletal symptoms. The statistical analysis was performed using SAS (version 9.4). Results: The results of this study are as follows. Firstly, changes in working conditions have an impact on job-related stress. Secondly, changes in working conditions have an impact on work intensity indicators. Thirdly, changes in working conditions have an impact on the prevalence of musculoskeletal symptoms. Fourthly, even with an increase in age and length of service, job-related stress and musculoskeletal symptoms were alleviated when working conditions were improved. Conclusions: In order for measures to reduce musculoskeletal disorders to be successful, working conditions must not deteriorate, and it is necessary to demand revisions to regulations, etc. to reflect these points in the investigation of hazardous factors to the musculoskeletal system.