Reza Kalantari; Zahra Zamanian; Mehrdad Kamrani; Ehsan Bakhshi; Matin Rostami; Morteza Mortazavi Mehrizi; Ebrahim Nazari far
Abstract
Background: Mental workloadis the operator´s mind effort, the excessive levels of which can endanger his/her health. Work-related musculoskeletal symptoms (WMSs) could be the result of a high mental workload. As the workload level depends on the task, this study aims to assess the relationship ...
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Background: Mental workloadis the operator´s mind effort, the excessive levels of which can endanger his/her health. Work-related musculoskeletal symptoms (WMSs) could be the result of a high mental workload. As the workload level depends on the task, this study aims to assess the relationship between mental workload and musculoskeletal symptoms in different working groups of a hospital. Methods: This cross-sectional study was conducted on 240 employees in three main working groups including office staff, clinical employees, and service workers in a governmental hospital at Shiraz. Demographics, NASA Task Load Index, and Nordic musculoskeletal symptoms questionnaire were the data collection tools. SPSS, version 21, was used for data analysis. Results: The mean mental workload was 66.03 in office staff, 67.86 in clinical employees, and 72.41 in service workers. The prevalence of WMSs was 67% in office staff, 62.5% in clinical employees, and 60.8% in service workers. The overall mental workload was related to symptom prevalence in the elbow, thighs, knee, and foot (P-value < 0.05). Conclusion: Some domains of the mental workload are related to WMSs in the studied working groups. Paying attention to the special needs of each working group is necessary for reducing mental workload and WMSs.
Milad Gholami; Zahra Zamanian; Reza Kalantari; Mehdi Hasanshahi; Esmaeil Hosseinzadeh Roknabadi; Somayeh Gheysari
Abstract
Background: Safe performance and patient safety are two important issues in the delivery of healthcare services. Non-technical skills are necessary for safe performance of anesthesiologists in the operating room. This study aimed to assess the anesthetists’ non-technical skills in Iranian hospitals. ...
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Background: Safe performance and patient safety are two important issues in the delivery of healthcare services. Non-technical skills are necessary for safe performance of anesthesiologists in the operating room. This study aimed to assess the anesthetists’ non-technical skills in Iranian hospitals. Methods: This cross-sectional study was conducted on 38 anesthetists working in orthopedic surgery wards of two hospitals in 2019. The data were collected using the Anesthetist’s Non-Technical Skills (ANTS) system, which included four domains, namely task management, teamwork, situation awareness, and decision-making. The anesthetists were assessed by a trained observer via observing and recording the events during surgeries. Results: The mean score of ANTS was 10.12±1.66 out of 16. Among the four skills, the highest and lowest mean scores were related to “task management” (2.94 out of 4) and “decision-making” (2.26 out of 4), respectively. Work experience showed a significant positive relationship with “decision-making” (p=0.008, r=0.974). However, higher education level was not associated with improved anesthesiology skills. Conclusion: The quality of non-technical skills was below the acceptable level in the studied anesthetists. Thus, it is recommended that the anesthetists’ skills should be improved through educational and political interventions.
Toktam Balandeh; Mohsen razeghi; Zahra Zamanian
Volume 4, Issue 2 , April 2016, , Pages 89-94
Abstract
Background: Anthropometry is a branch of Ergonomics that considers the measurement and description of the human body dimensions. Accordingly, equipment, environments, and workstations should be designed using user-centered design processes. Anthropometric dimensions differ considerably across gender, ...
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Background: Anthropometry is a branch of Ergonomics that considers the measurement and description of the human body dimensions. Accordingly, equipment, environments, and workstations should be designed using user-centered design processes. Anthropometric dimensions differ considerably across gender, race, ethnicity and age, taking into account ergonomic and anthropometric principles. The aim of this study was to determine anthropometric characteristics of microscope users and provide a regression model for anthropometric dimensions. Methods: In this cross-sectional study, anthropometric dimensions (18 dimensions) of the microscope users (N=174; 78 males and 96 females) in Shiraz were measured. Instruments included a Studio meter, 2 type calipers, adjustable seats, a 40-cm ruler, a tape measure, and scales. The study data were analyzed using SPSS, version 20. Results: The means of male and female microscope users’ age were 31.64±8.86 and 35±10.9 years, respectively and their height were 161.03±6.87cm and 174.81±5.45cm, respectively. The results showed that sitting and standing eye height and sitting horizontal range of accessibility had a significant correlation with stature. Conclusion: The established anthropometric database can be used as a source for designing workstations for working with microscopes in this group of users. The regression analysis showed that three dimensions, i.e. standing eye height, sitting eye height, and horizontal range of accessibility sitting had a significant correlation with stature. Therefore, given one’s stature, these dimensions can be obtained with less measurement.
Zahra Zamanian; Shahrzad Riaei; Najmeh Kaveh; Amineh Khosravani; hadi daneshmandi; Mehrab Sayadi; Mohammad Djaefar Moemenbellah-Fard
Volume 4, Issue 1 , January 2016, , Pages 7-13
Abstract
Background: Depression is one of the mental disorders which have become a public health problem throughout of the world. The objective of this study was to investigate depression and to determine its correlated factors among students at Shiraz University of Medical Sciences (SUMS).Methods: 358 students ...
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Background: Depression is one of the mental disorders which have become a public health problem throughout of the world. The objective of this study was to investigate depression and to determine its correlated factors among students at Shiraz University of Medical Sciences (SUMS).Methods: 358 students of SUMS participated in this crosssectional study in 2012. The participants were selected by Proportion Partition sampling method. A two-part questionnaire was used as the data collecting tool. In the first part, demographic characteristics and in the second part the Beck Depression Inventory (BDI) were included.Results: Mean score of depression in the studied population was 10.98. More than half of all the participants (54.7%) were symptomless; 41% of them were in the weak to moderate depression categories, and 4.2% in the strong and very strong categories. The data showed a significant relationship between scores of depression and marital status, academic grade, field content of study, use of psychoactive drugs, job outlook, problem with marriage and religious commitments. The depression scores in the married, religious and postgraduate participants and in those participants with course pleasure and excellent career perspective were lower than those in the other groups.Conclusion: Taking measures to reduce the factors leading to mental disorders is recommended. The involvement of students in socio-cultural, recreational and sport activities, reinforcement of consultation and clinical psychological services, and promotion of religious beliefs are instrumental in the enhancement of moral values and amelioration of depression among university students.
samira mirzaei; Zahra Zamanian; Jafar Hasan Zade
Volume 3, Issue 3 , July 2015, , Pages 113-118
Abstract
Background: The present study aimed to investigate the effects of work shifts and mental workload on chronic fatigue among female nurses in Intensive Care Units of selected hospitals in Shiraz. Methods: The participants in this cross-sectional study were 118 female nurses working in Intensive Care Units ...
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Background: The present study aimed to investigate the effects of work shifts and mental workload on chronic fatigue among female nurses in Intensive Care Units of selected hospitals in Shiraz. Methods: The participants in this cross-sectional study were 118 female nurses working in Intensive Care Units of three hospitals in Shiraz with an average age of 304.8± years. SP (Samn-Perelli) Mental fatigue scale and NASA task load index were rated for two weeks at the beginning and end of each work shift. The Checklist Individual Strenght (CIS) questionnaire was completed to assess the fatigue during the last two weeks. Results: Mean score of chronic fatigue was 69.2±13. Menal fatigue and mental workload per shift were significantly correlated with work shifts (P=0.001). Mental workload (P=0.006, r=0.24) and mental fatigue caused by work shifts (P=0.001, r=0.42) were also significantly correlated with chronic fatigue. Conclusion: The results of the study showed that mental workload and work shifts influence the nurses’ fatigue in Intensive Care Units. Therefore, using intervention strategies to reduce mental work load and modification of shift work system in this group seems to be necessary.
Zahra Zamanian; Reza Rostami; Kiana Nikeghbal
Volume 3, Issue 1 , January 2015, , Pages 45-49
Abstract
Background: Noise is one of the most important hazardous physical factors in industrial environments. This study aimed to determine the effects of noise exposure on serum cortisol level and some blood parameters among male workers of a steel production company.Methods: This cross-sectional study was ...
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Background: Noise is one of the most important hazardous physical factors in industrial environments. This study aimed to determine the effects of noise exposure on serum cortisol level and some blood parameters among male workers of a steel production company.Methods: This cross-sectional study was conducted on 50 male workers in a steel production company. In order to assess the changes in blood parameters, such as serum cortisol level, lipid profile, and blood sugar, blood samples were taken from the participants before and after the work shift. Besides, CEL 440 sound level meter was used to measure the equivalent sound pressure level (LAeq) and analyze the noise in octave band frequencies. Analyses of data were performed by SPSS software (version 16) using the Paired sample t-test.Results: The laboratory findings indicated an increase in serum cortisol at all exposure levels. However, the changes were not statistically significant. An increase was observed in blood sugar levels at all the three noise levels and the increment was statistically significant at 95 dB noise level.Conclusion: The present study showed that exposure to high sound levels leads to changes in biological parameters, although under the scenario explained in this study these changes did not reach statistical significant.
zahra zamanian; hadi daneshmandi; Hojjatolah Setoodeh; Ebrahim Nazaripoor; Abdollah Haghayegh; Saeed Shaban Sarvestani
Volume 2, Issue 4 , October 2014, , Pages 134-139
Abstract
Background: Musculoskeletal disorders (MSDs) are one of the most common causes of occupational injuries that appear in the lower back, neck and upper and lower extremities mainly. This study was conducted to assess the risk of MSDs and determine of its associated factors in workers of a dairy products ...
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Background: Musculoskeletal disorders (MSDs) are one of the most common causes of occupational injuries that appear in the lower back, neck and upper and lower extremities mainly. This study was conducted to assess the risk of MSDs and determine of its associated factors in workers of a dairy products company.Methods: In this cross-sectional study, 100 male employees (21-41yrs) using census sampling method participated. Data were collected using demographic questionnaire, Nordic musculoskeletal disorders questionnaire (NMQ) and QEC method for assessment of postures during the work. Data were analyzed using statistical tests including test of proportion, multiple logistic regression, and Fisher’s Exact by SPSS software (Version 16.0).Results: The results of this study showed that the lower back (37%), shoulders (36%), and hand/wrist (33%) had the highest prevalence of symptoms of disorders among workers. The results of multiple logistic regression showed a significant association between the prevalence of musculoskeletal disorders in different regions of the body and age, job experiences, shift working and BMI. The results of assessment of physical exposure to musculoskeletal risks by QEC technique showed that in 52% of the studied workers, the level of exposure to musculoskeletal risks was in Action Level (AL) 1, 9% in AL2, 30% in AL3, and 9% in AL4. Also, the finding revealed a significant relationship between the prevalence rate of MSDs and the risk level (low and high risk) achieved by QEC method.Conclusions: Prevalence of symptoms of pain in different regions of the body had an association with age, job experience, shift working and BMI. Corrective measures seemed essential in improvement of working condition in the studied workers.