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Houshang Shahnavaz, Mohammad Sadegh Sohrabi,
Volume 12, Issue 1 (4-2024)
Abstract

Drawing from the author's knowledge, experience, and evidence gathered during years of professional activity in Iran, the article offers twenty-two important "lessons learned" concerning the initiation, design, and implementation of ergonomics intervention programs in industries and companies in developing countries, with a focus on Iran. Briefly, a short report of four ergonomics projects implemented in Iran is provided, and then policy suggestions are expressed in the form of lessons. These lessons are derived from the author's practical projects as an ergonomics manager and offer key points to increase the success of ergonomics projects and to expand and sustain ergonomics in industries and companies.

Mohammad Sadegh Sohrabi,
Volume 12, Issue 1 (4-2024)
Abstract

Objectives: In the last decade in Iran, the highest prevalence of musculoskeletal pain and discomfort among office workers has been reported in the neck, back, and shoulder areas. The present study aimed to assess the impact of ergonomic interventions in knowledge-based companies on musculoskeletal disorders, work-related stress, and quality of work life.
Methods: In this quasi-randomized controlled trial study, the participants, including 311 office workers, received ergonomic interventions at both individual and managerial levels.
Results: The implementation of individual ergonomic training interventions significantly reduced disorders in the neck, right and left shoulders, right forearm, and right wrist. Social support also demonstrated a significant increase in all three intervention groups. The interventions had a significant impact on the quality of working life. The changes in the mean quality of working life for the second and third groups in the first month of growth were significant and then continued similar to the trend of the control group.
Conclusion: The implementation of individual ergonomic training interventions significantly reduced musculoskeletal disorders in the neck, shoulders, and upper limbs. Nonetheless, management training interventions did not affect the musculoskeletal disorders of employees. Furthermore, concurrent implementation of individual ergonomics and management interventions exerted a more pronounced effect on the reduction of disorders. The implementation of management educational interventions and combined interventions led to a marked increase in the level of control experienced by participants, while both types of social support interventions also increased. The implementation of a multi-component ergonomics intervention program was demonstrated to enhance the impact of interventions on employees' health and productivity.

Fatemeh Alibeygian, Hamidreza Mokarami, Reza Kazemi,
Volume 12, Issue 2 (7-2024)
Abstract

Objectives: The current qualitative study aimed to understand the factors affecting the optimal performance of bus drivers using the macro ergonomics approach and the work systems model. This topic is important as it addresses significant gaps in the existing literature regarding the ergonomic and systemic factors influencing driver performance.
Methods: In this study, 13 in-depth interviews were conducted with bus drivers. A qualitative content analysis of the data was performed using MAXQDA2020 software after data collection. Codes were extracted based on nine categories of factors affecting performance related to the five components of the work system: organizational, individual, environmental, task, and technology.
Results: The analysis revealed that employees reported low performance mainly due to organizational structural problems and managerial characteristics. These findings highlight the critical role of organizational factors in driver performance.
Conclusion: The results indicate that ergonomic interventions targeting organizational structural issues and managerial practices could significantly improve the performance and satisfaction of bus drivers. The insights gained from this research can inform practical interventions to improve the working conditions and overall performance of this occupational group. These findings contribute to the field by providing a direction for enhancing the work system to better support driver performance.


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