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Showing 4 results for Aeini
Ergonomic Evaluation of Workstations in Industry with Emphasis on Economic Considerations (Case Study: Automotive Industry)
Hassan Sadeghi Naeini, Mohammad Zolfaghari,
Volume 8, Issue 3 (Iranian Journal of Ergonomics 2020)
Abstract
Background and Aim: Annually, a percentage of the profits from the sale of goods and services by producers are spent on costs of musculoskeletal disorders due to non-compliance with ergonomic conditions. These costs are not favorable for organizations and employees and in most cases, ergonomic risk factors affect the quality of life of employees.
Methods: The present field study was conducted as a census on 193 workers with medical records in one of the domestic automotive industries on December 2018. The highest prevalence of musculoskeletal disorders belonged to 16 workers, so their workstations were analyzed. Questionnaire with the help of Nordic questionnaire and through interviews with workers has been one of the methods of collecting data. Each of the selected workstations was analyzed with OWAS method after job photography and video recording.
Results: The results showed that three work stations from the viewpoint of Action Categories are at the level of three, three work stations at the level of two and one station at the level of one, and then the costs of incidence and treatment and related actions due to establishing ergonomic conditions were calculated.
Conclusion: Cost of workstations analysis, Preventive actions and also designing a process to reduce the musculoskeletal abnormalities of the staff, which results in ergonomic conditions, compared with the cost of incidence and treatment of musculoskeletal complications is cost-effective for this automotive industry.

Role of Individual Factors on the Individual Resilience and Productivity of Employees in one of the Oil and Gas Companies in South of Iran in Epidemics Conditions of COVID-19
Saeed Yazdani Rad, Mahsa Jahadi Naeini, Marziyeh Sadeghian, Seyed Mahdi Mousavi, Milad Abbasi,
Volume 8, Issue 4 (Iranian Journal of Ergonomics 2021)
Abstract
 
Background and Objectives: Coronavirus disease 2019 (COVID-19) causes mental effects as well as physical effects, which can affect the occupational dimensions of people. The present study was aimed to determine the effect of individual factors on resilience and productivity loss of employees at epidemics conditions of Coronavirus in an occupational environment.
Methods: This cross-sectional study was performed, in Spring of 2020, on 275 personnel in one of the southern industrial companies of Iran. Data collection instruments included demographic questionnaire, researcher made questionnaire, CD-RSC resilience questionnaire, and Hershey and Gold Smith productivity questionnaire. The collected data were analyzed using SPSS software version 22.
Results: The results of one-way analysis of variance (ANOVA) showed that people older than 50 years and more than 20 years of work experience and low and medium experience in using personal protective equipment had a significantly lower resilience score (P<0.05). Also, the results of the analysis revealed that the individuals with experience of COVID-19 had significantly lower score of productivity (P<0.05). Moreover, the results showed that there was a significant positive correlation between resilience and productivity (r=0.249, P<0.05).
Conclusion: COVID-19 disease has reduced the resilience and productivity of workers. Therefore, adherence to health protocols in the workplace is necessary to reduce the risk of developing COVID-19.

Application of Participatory Ergonomics Principles as a Strategy for Sustainable Environmental Management
Farahnaz Dastranj, Ali Mohammadi, Hassan Sadeghi Naeini, Hanieh Nikoomaram, Reza Azizinezhad,
Volume 13, Issue 1 (Iranian Journal of Ergonomics 2025)
Abstract
Objectives: Participatory ergonomics, with its focus on the active involvement of stakeholders in designing and improving work systems, can be proposed as a key strategy for sustainable environmental management. The present study aimed to explore the mechanisms of integrating ergonomic principles and employee participation to elucidate how environmental sustainability can be achieved in workplace settings.
Methods: The present descriptive-analytical study was conducted in the Iranian automotive industry. The participatory ergonomics program involved a 14-member expert team through weekly sessions consisting of two hours of theoretical training and one hour of practical application over three months. The primary objectives of the program encompassed comprehensive training on ergonomics checkpoints established by the International Labour Organization (ILO), integration of ergonomic principles with environmental sustainability considerations, and development of practical competencies to implement acquired knowledge in actual workplace environments.
Results: Following the completion of the participatory ergonomics program and a thorough assessment of workplace issues, the ergonomics team successfully developed fifty practical recommendations, 20% of which addressed environmental concerns. Through six months of sustained collaboration between workers and management support, ten of the proposed recommendations were implemented.
Conclusion: The application of participatory ergonomics principles, emphasizing stakeholder engagement in work system design, can serve as a pivotal strategy for sustainable environmental management. This approach not only enhances employees' physical and psychological well-being but also establishes an inseparable connection between technology, humans, and the environment by reducing occupational stress and natural resource consumption. Undoubtedly, interdisciplinary research in ergonomics and environmental sustainability can play a strategic role in achieving balanced development for future generations.

Investigating Occupational Exposure Levels and Health Effects Associated with Hand-Arm Vibration during Work with Vibrating Equipment in Furniture Carpentry Workshops
Mohsen Aliabadi, Ramin Rahmani, Maryam Farhadian, Seyed Ghavameddin Attari, Hadi Aeini,
Volume 13, Issue 2 (Iranian Journal of Ergonomics-In Press 2025)
Abstract
Objectives: In the furniture industry, workers operating woodworking machinery are exposed to hand-arm vibration. The present study aims to assess the occupational exposure levels and associated health effects of vibration transmitted to the hand during the operation of vibrating equipment in furniture carpentry workshops.
Methods: This case-control study was conducted on 59 carpenters (case group) and 39 painters (control group) in Malayer city, Iran. Hand-arm vibration exposure was measured in accordance with ISO 5349. Symptoms related to hand-arm vibration were assessed via questionnaire. Vascular disorders were evaluated through the hand temperature recovery test, according to ISO 14835. Sensory function was examined using the monofilament test kit, and grip strength of the hand and fingers, as well as hand dexterity, were measured for both groups. The collected data were analyzed using SPSS (version 26).
Results: Based on the findings of the present research, the 8-hour equivalent acceleration of hand-arm vibration among carpentry workers was 2.74 ± 0.85 m/s². The most frequently reported symptoms among carpenters were hand pain, tingling, and finger pruritus, while Raynaud’s phenomenon (finger blanching) was the least frequently reported. Grip strength, finger strength, hand dexterity, and motor skills were significantly lower in the exposed group compared to the controls (P<0.05). Around 10 percent of carpenters exhibited reduced superficial tactile sensitivity. However, no significant difference was observed between the exposed and control groups in terms of vascular impairments.
Conclusion: Chronic exposure to hand-arm vibration in furniture carpentry workshops, even at levels below the permissible limit, can lead to a range of sensory-neurological, vascular, and musculoskeletal symptoms in the hand and arm region, and can adversely affect motor function in these workers.

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