Iranian Journal of Ergonomics

✅ According to this paper’s report, given the undeniable role of the safety of playground equipment in preventing possible harm to children, they must be secured and adapted to global standards.

✅ At the end of the study, through ergonomic design, matters of satisfaction, sustainability and reduced production costs and also the reasons for students' dissatisfaction with the drawing table and chairs is presented.

✅ It seems that school furniture dimensions in sixth grade boy students of elementary school in Karaj were not in acceptable condition. So, we suggest that ergonomics standardization of school furniture should be considered to prevent its possible consequences.

✅ It was revealed that mental load was high in assembly lines of the manufacturing industry and this result was also confirmed by physical evaluation. This study indicated that overall score of SMWL can affect the incidence of MSDs. That is why mental workload should be considered as a risk factor for MSDs.

✅ To reduce and control the human error in nursing duties in the dialysis department, control measures should be done such as increasing the number of personnel, changing the time shift of nurses, and training, preparing and revising the instructions.

✅ Neuroticism increases unsafe behaviors and safety efficacy and regulatory focus (prevention focus and promotion focus) decrease unsafe behaviors of employees.

✅ Examination of the correlation between the mean scores of the two methods indicated a moderate correlation between them. Correlation between prevalence of disorders and QEC and WERA scores showed that QEC results were more consistent with Nordic results and it can be said that QEC method was more suitable for ergonomic assessment of musculoskeletal disorders risk for different tasks in this study.

✅ The results indicated the role of self-efficacy in preventing behaviors that lead to exacerbation of musculoskeletal disorders. This will ultimately be reflected in their job performance and both the individual and the organization concerned. Also, employing high self-efficacy staff can improve work performance and productivity and contribute to better production processes.