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Showing 6 results for Sadeghian
Effectiveness of ergonomics training in decreasing the risk of musculoskeletal disorders based on rapid upper limb assessment among computer operators
Athena Rafieepour, Elnaz Rafieepour, Marzieh Sadeghian,
Volume 3, Issue 1 (Journal of Ergonomics 2015)
Abstract
 

Introduction: Musculoskeletal disorders are one of the leading problems among computer users. They have attracted increasing attention over years and different solutions have been proposed for their resolution. This study evaluated the effects of ergonomic training on reducing the risk of musculoskeletal disorders in computer users.

Materials and Methods: This study was conducted among the office workers of a university. A total of 110 computer operators were randomly selected and allocated to intervention and control groups. The intervention group was trained about the ergonomic principles of working with computers. Nordic Musculoskeletal Questionnaire (NMQ) was used to investigate the prevalence of musculoskeletal disorders. Moreover, rapid upper limb assessment (RULA) was applied to determine the risk of musculoskeletal disorders before and six months after training. Data was analyzed using independent and paired t-test.

Results: The highest frequency of musculoskeletal disorders was seen in the back (55.4%) and neck (54.5%). In addition, risk assessment before the intervention suggested 31% of the participants to be high-risk. After the training program, significantly lower risk was detected in the intervention group. No such a significant difference was present in the control group.

Conclusion: The results of this study showed that corrective actions can reduce the risk of work-related musculoskeletal disorders (WMSDs). They can thus be implemented to enhance the effectiveness of ergonomic measures.

     
Identification of Factors Affecting the Burnout in the Employees of Ardabil Regional Water Company and Providing Solutions Using the System Dynamics Method
Esfandyar Ataei, Ramin Sadeghian, Peyman Najafi,
Volume 7, Issue 4 (Iranian Journal of Ergonomics 2020)
Abstract

Background and Objectives: Recognition and prevention of burnout plays an important role in promoting mental health and increasing the quality of services provided. This paper aimed to prevent the occurrence of this problem, seeking to identify the effective factors on the employees' burnout.
Methods: Many studies have been carried out by researchers on staff burnout using a descriptive-analytical approach, but there is no model comprehensively identifying the factors affecting employee burnout and, more importantly, expressing the relationships between the factors involved. Therefore, system dynamics analysis and VENSIM software have been used for explaining the quantitative relationships between factors affecting employees' burnout, evaluation and simulation.
Results: After designing causal, flow diagrams and model validation, four scenarios were extracted using system dynamics and simulation methods. The first scenario, which shows the current status of the company, indicated an increase in burnout. In the second scenario, with increased job satisfaction, employee productivity increased, but higher productivity, in practice, did not lead to reduction in burnout. In the third scenario, burnout decreased with increasing occupational control variables. And in the fourth scenario, by increasing the welfare and rest parameters of the staff, it was found that this scenario also had a significant effect on reducing the burnout of employees.
Conclusion: From among the four simulated scenarios, the fourth one, which is the increase in staff welfare parameters, had the most impact on reducing the burnout of Ardabil Regional Water Company employees.


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.

Examining the Prevalence of Musculoskeletal Problems Related to Mobile Phone Usage and Providing Corrective Solutions to Dental Students of Jundishapur University of Medical Sciences, Ahvaz
Behzad Fouladi Dehaghi, Abbas Mohammadi, Marzieh Sadeghian, Maryam Tayebi, Azarnoosh Aryankia, Saeed Ghanbari,
Volume 12, Issue 1 (Iranian Journal of Ergonomics 2024)
Abstract
Objectives: The present study aimed to assess the prevalence of musculoskeletal problems related to mobile phone usage and provide corrective solutions for dental students of Jundishapur University of Medical Sciences, Ahvaz.
Methods: The current study was conducted based on an analytical cross-sectional design. In order to collect relevant data, such as the presence of pain in the upper limbs, back, and neck, questionnaires and instrumental methods were used. Students were examined in two groups: the first group included 150 dental students up to the 4th semester, and the second group encompassed 150 dental students from the 5th semester onwards (3rd, 8th, 5th, and 6th year). Data collection instruments were demographic characteristic form, nomophobia questionnaire (NMP-Q), neck disability index (NDI), and Cornell hand discomfort questionnaire (CHDQ).
Results: According to the results of the present study, the prevalence of nomophobia among dental students of Jundishapur University of Medical Sciences in Ahvaz was at an average level. The mean  NDI score was 16.20, and the mean pain score among the students was 1.72. Moreover, 46.5% of students had pain in the hand area, and the highest amount of pain was reported in the F area. The mean score of Cornell's musculoskeletal disorders was reported as 2.72.
Conclusion: Examining the relationship between the pain area and the year of entry to the university demonstrated a significant relationship between the year of entry to the university and the pain area. In this regard, the incoming students 2021-22 had the greatest amount of pain. According to the results of the corrective intervention on skeletal disorders in the wrist and neck region, the mean scores of the variables increased significantly after the intervention and corrective measures.

Investigating the Cognitive Abilities of Nurses after Working in Infectious Disease Departments in Hospitals
Niloofar Chinisaz, Marzieh Sadeghian, Amir Akbari, Maryam Yazdi,
Volume 12, Issue 2 (Iranian Journal of Ergonomics 2024)
Abstract
Objectives: High workload, shift work, risk of disease, and mental workload caused by the possibility of transmission can create challenging and stressful situations for nurses. The present study aimed to assess the cognitive performance of nurses before and after working in COVID-19 wards to understand the potential effects.
Methods: A total of 250 nurses from hospitals in Ahvaz in 2020 who had more than two years of work experience and had not worked in departments in direct contact with COVID-19 patients were included in the study. The participants were asked to complete the cognitive ability assessment questionnaire before starting to work in COVID-19 departments and after two months of their work. The results before and after working in COVID-19 wards were compared using paired t-tests.
Results: The cognitive ability score after working in COVID-19 wards decreased significantly (mean difference±standard deviation: 23.92±12.00; P<0.001). The scores of all cognitive ability subscales except social cognition (mean difference±standard deviation: 3.03±2.43; P< 0.001) also decreased after working in COVID-19 wards.
Conclusion: Working in COVID-19 wards leads to a marked decrease in cognitive abilities of nurses. Given that the weakening of nurses' cognitive ability has a significant role in the quality of patient care measures, it is necessary to prioritize measures to improve their working conditions in order to improve cognitive abilities.

Evaluation of the effect of educational intervention on the cognitive performance of taxi drivers exposed to heat stress in a city in southern Iran
Marzie Sadeghian, Arash Salahshoori, ,
Volume 12, Issue 3 (Iranian Journal of Ergonomics 2024)
Abstract
Introduction: One of the jobs that is exposed to a lot of heat stress is taxi drivers. Due to their working conditions, these people spend a lot of time standing next to their cars in the sun to pick up passengers and are also exposed to heat stress throughout the entire driving journey. Therefore, the present study aimed to .evaluate the effectiveness of an educational intervention program on the cognitive performance of taxi drivers exposed to heat stress in a city in southern Iran
Methods: The present study was a semi-experimental intervention that was conducted in three stages including initial assessment, training, and secondary assessment for 80 taxi drivers in two intervention and control groups. In the first stage, a general assessment of all drivers' knowledge and awareness of heat stress was performed, while cognitive parameters including concentration skills and mental fatigue were measured using a questionnaire. Then, training was given to the intervention group in both face-to-face and face-to-face formats. Two months after the start of training, cognitive parameters were measured for both intervention and control groups. Data analysis was also performed using SPSS software.
Results: The results after the intervention showed that the training significantly increased concentration skills and significantly reduced mental fatigue (p < 0.001). Regarding concentration skills and mental fatigue along with all subcategories of the two questionnaires, the results showed that there was no significant difference between these variables before the intervention between the two groups, and after the intervention, the difference between the two groups was significant (p < 0.001)
Conclusion: Implementing an appropriate training program with follow-up over a period of two months to familiarize individuals with heat stress improved cognitive performance, and using follow-up training with a virtual structure improved the teaching and learning process and had an impact on individuals' performanc

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