Showing 11 results for Sadeghi
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.
Mohsen Shojaatian, Heydar Sadeghi,
Volume 4, Issue 2 (Journal of Ergonomics 2016)
Abstract
Introduction: According to the effectiveness and low cost of prevention, ergonomic assessment methods as a means to predict the potential occurrence of injury are being used. The aim of the present research was the assessment of validity and reliability of researcher-made ergonomic assessment test for freestyle wrestling skills.
Methods: In this research, according to the jobs ergonomic evaluation tests and wrestling pathology research, an ergonomic evaluation test for wrestling skills (WSEAtest) was designed. Content and face validity were proved by using the opinions of sports biomechanics and pathology experts, as well as physicians, physiotherapists, trainers and wrestlers of Freestyle national team. Furthermore, the test was performed on three skills in two different days by five examiners, using Kinovea software 0.8.15; also, intra- and inter-tester reliability were calculated. After the reliability and validity approval, WSEAtest was performed on video records of four selected skills of Iranian freestyle wrestlers in London 2012 Olympic games.
Results: The injury exposure in various parts of body, traumatic factors related to collisions and loads, and athlete and environment conditions were consistent with wrestling pathological research and confirmed the validity of the test results.
Conclusions: WSEAtest has acceptable validity and reliability; trainers, specialists, and sports therapists can use this test to assess traumatic factors and identify priorities for training and corrective exercises in different wrestling levels, and in various ages.
Mahshid Bahrami, Mansoureh Sadeghi, Alireza Dehdashti, Meysam Karami,
Volume 6, Issue 2 (Journal of Ergonomics 2018)
Abstract
Introduction: working with computer for long duration, static condition, and poor posture may lead to musculoskeletal disorders. The aim of this study was to assess an educational and ergonomic intervention on improving work procedure among computer users in office work in 2016.
Materials & Methods: This descriptive-analytic study was carried out on 28 employees of administrative staff of Damghan Velayat Hospital. In order to determine the level of ergonomic risk, the physical status of patients was evaluated before and 6 months after intervention using ROSA method. The ergonomic principles were also used to increase the staff’s awareness. Finally, one-way analysis of variance and independent t-test were used to analyze the statistical data.
Results: Prior to the implementation of the educational intervention program, the most important risk factors were in the neck (P=0.009), elbows (P=0.019) and shoulders (P=0.031), respectively. After the intervention, this level of risk was reduced in the organs, which was a significant change. There were also other variables; age (P=0.028), gender (P=0.015), BMI (P=0.040), education level (P=0.047) and job experience (P=0.025). They had a significant effect on the final score of ROSA.
Conclusion: The results indicated the prevalence of musculoskeletal disorders and ergonomic risk level by ROSA method which requires ergonomic intervention in the design of the environment, tools and equipment along with educational intervention.
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.
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.
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.
Ghazale Sadeghzade, Somaye Rahmati, Fatemeh Sadeghi, Amjad Mohammadi Bolbanabad, Ebrahim Darvishi,
Volume 9, Issue 2 (Iranian Journal of Ergonomics 2021)
Abstract
Background & Objectives: The pandemic and the crisis caused by the COVID-19 have challenged health care organizations around the world, causing human casualties and health concerns around the world and in Iran. The purpose of this study was to evaluate the mental workload and job burnout of medical employees during the Covid-19 pandemic in Iran.
Method: The present descriptive-analytic research has been conducted on 510 medical and diagnostic staff in the cities of Tehran, Isfahan, and Sanandaj. The mental workload and the job burnout of staff have been evaluated using NASA-TLX software and the job burnout Maslach, respectively. Statistical tests including t-test, ANOVA, and multivariate linear regression were used to analyze the data using a STATA-14 software package.
Results: The mean mental workload of employees associated with patients suffering COVID-19 and those not associated was estimated at 83.7±8.1 and 79.9±9.6 respectively. The mean of job burnout was estimated at 79.6±16.2 and 79.7±16.9, respectively, which were not statistically significant. The results of linear regression showed that being married (coefficient = -6.57, P value=0.003), employment as a Tarh (coefficient = -12.71, P value=0.002), inverse relationship and Work in Isfahan hospitals (coefficient = 21.21, P value<0.001) was directly related to burnout. Women (coefficient = 3.61, P value<0.001), having a relationship with COVID-19 patients (coefficient = 5.9, P value<0.001) had a direct relationship with the amount of mental work.
Conclusion: The mental workload and job burnout in medical employees during the COVID-19 pandemic are high, and warning and the mental workload in employees associated with patients suffering COVID-19 are higher than other employees.
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.
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.
Marzie Sadeghian, Arash Salahshoori, ,
Volume 12, Issue 3 (Iranian Journal of Ergonomics-In Press 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
Roghayeh Esmaili, Ali Askari, Mohsen Poursadeghiyan,
Volume 12, Issue 3 (Iranian Journal of Ergonomics-In Press 2024)
Abstract
:Background and Objectives
Various factors, including a lack of attention to the adaptation of educational spaces, can significantly impact the quality of education. Consequently, this study aims to comprehensively review an
analyze all research conducted on school ergonomics in Iran.
Methods
A bilingual search was conducted in this study utilizing Persian keywords such as "student," "elementary, middle or high school," and "physical, environmental, and general ergonomics," along with their Latin equivalents. This search was performed across databases including Google Scholar, PubMed, Web of Science, and Scopus, covering the period from the inception of research in Iran until the year 1403 in the Persian calendar (2024). Subsequently, articles relevant to the topic were collected and examined according to the established criteria.
Results
Among the identified articles, only 30 were recognized as relevant to the study's objectives, focusing on physical, environmental, and general ergonomics. A comparison of these studies revealed an upward trend in musculoskeletal disorders, with many of these issues linked to ergonomic problems in schools, including the mismatch between students' body dimensions and the desks and chairs used, as well as improper carrying of school bags.
Conclusion
The poor ergonomic condition in Iranian schools, leading to an increase in musculoskeletal disorders among students. It is vital to evaluate these schools based on ergonomic standards and implement necessary enhancements. Furthermore, it is important to raise students' awareness about proper task performance and appropriate backpack usage.
