Tibbi-i-kar

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Introduction: Professional and occupational diseases, pain, large losses to workers, businesses, social security funds and their communities in general. According to International Lab our Organization estimates, due to the working conditions, work-related accidents are six times more likely to cause their death. Aim of this study check and improvement in muscular-skeletal disorders in a support software company in Tehran.

Materials and Methods: In this cross-sectional study of 70 randomly selected operators. Using data from the Cornell Musculoskeletal Discomfort Questionnaire and Rapid office strain assessment were collected. Data were analyzed using Pearson correlation test and analysis of variance and the improvement was achieved using the Taguchi method.

Conclusion: ROSA results showed that 43/11 percent and 57/88 percent of operators in the notification area of ergonomic interventions are needed in the area. Using Taguchi Methods designed to change workstations, Selection and changes need to be applied. The results reveal a decrease in the average final score to 74.5 and its improvement and reduction of 7% of the ergonomic intervention and improvement of the alert level.

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  Introduction: Carpet industry is one of the most important, dangerous and traditional industries in Iran. Non-Ergonomic factors such as non-standard work tools, inappropriate physical postures, long hours of work and insufficient rest of carpet weavers can lead to musculoskeletal disorders. The purpose of this study was to determine the prevalence of musculoskeletal discomfort and its relationship with posture in rural carpet weavers in Boshruyeh city.

  Methods: This study is descriptive, analytical and cross-sectional. The sampling method was census-based and included all rural carpet weavers in Boshruyeh city who were active at least 6 months prior to the beginning of the study and were willing to cooperate (62 people). In order to investigate musculoskeletal discomforts, used from Cornell Musculoskeletal Discomfort Questionnaire (CMDQ) and for posture assessment, The Occupational Repetitive Action Index (OCRA) method was used. The collected data by using SPSS software IBM 24 (Pearson correlation test) was analyzed.

  Results: The results showed that 98.39% of the workers felt discomfort at least in one of the 20 assessed regions. The most common discomfort of carpet weavers was 72.88% in the lower back region and the lowest incidence of discomfort was 9.68% in the hip/buttocks. There was a significant statistical relationship between scores of musculoskeletal discomforts in 11of 20 assessed regions with OCRA score (p <0.05), There was also a significant statistical relationship between age, work hours and work experience with CMDQ score (p <0.05).

  Conclusions: It seems Insufficient rest, Repetitive work, and incorrect posture are of factors affecting the musculoskeletal discomfort.observe the principles of ergonomics, especially having proper postures and regular rest along with stretching can be helpful in reducing the incidence of discomfort and musculoskeletal disorders.

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Introduction: today, musculoskeletal disorders are considered as a serious threat for workers, and one of the main activities, which lead to these problems, is lifting. Moreover, workers in printing industry are widely involved in inappropriate postures and lifting loads. The aim of this study was to compare the results of assessment of lifting tasks with KIM-LHC, WISHA and Snook tables in printing industry.
Materials and Methods: In this cross-sectional study, a total number of 58 employees (64 tasks in total) from a printing industry staff in Tehran were evaluated with three observational methods of KIM-LHC, WISHA and Snook tables, and the final scores and necessary action levels were determined for them. Furthermore, statistical data were analyzed by SPSS (ver.22) software using Chi-square and Fisher exact tests.
Results: Results showed that the prevalence of lower limbs musculoskeletal discomforts was high. Comparing the results of load lifting assessment with WISHA and KIM-LHC methods showed that there was a significant relationship between these two methods (p=0.005). Moreover, there was a significant relationship between the results of assessment through the WISHA and Snook tables methods (p=0.006), and finally the comparison of load lifting assessment results with KIM-LHC and Snook tables showed a significant relationship between these two methods (p=0.046).
Conclusion: According to the results of this study, there was a high correlation between the results of these three methods, and they can be used as an alternative in printing industry for assessment of the load lifting task.