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Samira Ansari, Morteza Rezapoor, Mohammad Amin Hematgar, Atiye Sadat Ghazi, Sakineh Varmazyar,
Volume 2, Issue 3 (6-2017)

Background: Since students spend a lot of time in classrooms and in steady state, many of them may experience signs of musculoskeletal disorders. The aim of this study was to determine the prevalence of musculoskeletal disorders and its related risk factors among students.
Methods: This descriptive-analytical and cross-sectional study was conducted among 129 students of Qazvin University of Medical Sciences in 2016. In order to determine the prevalence of musculoskeletal disorders, Nordic questionnaire was used. The relationship between musculoskeletal disorders and risk factors was evaluated in SPSS20 software.
Results: The highest incidence of musculoskeletal discomfort (80%) was observed in the waist area. The neck (38.3%) and shoulder (35%) were the most prevalent at the next levels. Marital status, age, weight, educational level, job, exercise and stress were identified as risk factors affecting the musculoskeletal disorders in the students.
Conclusion: It is possible to reduce the prevalence of musculoskeletal disorders by the necessary trainings to declare the risk factors and their modifications to the students, considering appropriate time between the classes and the use of ergonomic equipment and furniture in the classes. With these actions also can prevent from stress and consequently can increase the concentration and learning power in this group.


Mojtaba Jafarvand, Bahareh Keshmiri, Sakineh Varmazyar,
Volume 3, Issue 1 (12-2017)

Background: Although the expansion of innovation in the industry has led to an increase in the fast of works, production and productivity, it has also imposed an increase in the incidence of musculoskeletal disorders. So, the aim of this study was determination the risk level of work posture by REBA and RULA method among workers of assembly line of a cosmetic manufacturing factory.
Methods: This study descriptive was carried out among the assembly line workers of a cosmetic manufacturing factory in 2016. Six tasks (including 28 work postures) were selected due to the most risk of inappropriate work posture factor. 18 postures were evaluated by REBA method and 10 postures by RULA method.
Results: The results showed that the highest REBA score (score10) in the hair color manufacturing section and the highest RULA score (score 7) related to the oxidant and powder parts. The minimum score obtained by the REBA and RULA method was 5 and 4 (minimum 2 corrective action level), respectively.
Conclusion: To prevent musculoskeletal disorders and reduce the staff posture score in pouring materials into the mixer or reservoir of manufacturing hair color, oxidant and powder sections, corrective actions such as the use of a pump system for transferring materials to the reservoir and the use of an footrest to avoid lifting the load to a height above the shoulder are recommended.


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