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Anthropometric Evaluation of Primary School Students in the Mazandaran Province for the Design of School Furniture
Mohammad Amin Mououdi, Seyed Noroddin Mousavinasab, Seyed Mohammad Reza Gramian, Jafar Akbari,
Volume 4, Issue 1 (Journal of Ergonomics 2016)
Abstract

Introduction: Introduction: Inappropriate sizes of school furniture and the deformation of children’s bodies is one of the issues of concern in the world. The aim of this study was the evaluation of anthropometry of primary students aged 6-12 years in Mazandaran, Iran and the design of school furniture based on the anthropometric criteria of the students.

Methods: In this cross-sectional study, 18 anthropometric dimensions of 2336 boys and girls aged 6-12 years in 2014-2015 were measured. To collect data, anthropometric chair, camera and camera stand, and Anthropometric photo graphical software were used. After determining the anthropometric dimensions, ergonomic school furniture was designed.

Results: Average, minimum, maximum, standard deviation, median and percentile value of 2.5 to 97.5 of the anthropometric dimensions of students were calculated. The results showed that gender had no effect on the popliteal height in the age groups of 6 to 7 and 7 to 8, but age had effects on popliteal height (P < 0.001). In the age groups of 8 to 9 and 9 to 10 years and also the age groups of 10 to 11 and 11 to 12 years both gender and age had effects on popliteal height (P < 0.001).

Conclusions: The results showed that by eliminating the effects of gender, 16.2 mm popliteal height increased per year. It was also found that after eliminating the effects of age, popliteal height increased 20.39 mm more in girls than in boys. Until the age of puberty, the anthropometric dimensions in girls increased more than in boys. The dimensions of ergonomics tables and chairs for students were designed in three sizes.


The Trend of Anthropometric Dimensions Changes in Elementary PSchool Cof Mazandaran Province Between 1992 and 2014
Mohammad Amin Mououdi, Seyed Noroddin Mousavinasab,
Volume 5, Issue 4 (Journal of Ergonomics 2018)
Abstract
Background: Problems and complications caused by inappropriate tables and chairs dimensions in changing the shape of children's body are important issues nowadays. The aim of this study was to evaluate anthropometric dimensions of the changes in elementary school students of Mazandaran province between 1992 and 2014.
Methods: in two cross-sectional studies carried out between 1992 and 2014, anthropometric information of elementary school students were collected in the range of 6 to 11 years old. In 1992, 1758 students out of a population of 254204 and in 2014 2336 students out of a population of 208820 were selected using stratified random sampling method. In 1992, mechanical anthropometric was used for measuring while in 2014, an anthropometric chair photographic camera and anthropometric photogrammetric software (made by the researcher) were applied to measure. In this study, we measured the parameters of weight, amount of height, seat height, sitting height, shoulder width, hip width, thigh thickness, sitting length of the buttocks, hip length in sitting leg knee position. Data were analyzed using SPSS software package version 20.
Results: Comparison of the two study revealed that the average (SD) of the boy's weight increased from 25.82 kg (9.5) to 32.17 (11.03) (6.35 kg increase) and girls ‘weight accelerated 25.19 kg (6.5) to 33.10 (12.50) (7.91 kg increase). The boys' height was increased from 127.26 cm (9.6) to 134.80 (10.84) (54.7 cm increase) and a raise was observed form 126.5 cm (10.1) to 133.30 (11.18) (6.8 cm) among girls’ height and there were changes in other anthropometric factors as well.
Conclusion: The results show that students have significant anthropometric changes during a 22 years’ period, and it is needed to carefully design and construct children's devices especially the school chair and table.
 

Investigating the Prevalence of Musculoskeletal Disorders in Melli Bank Staff and Determining Its Relationship with Office Tension in North Khorasan Province in 2019
Seyed Taghi Mirmohammadi, Osman Gook, Seyed Nouroddin Mousavinasab, Hadi Mahmoodi Sharafe,
Volume 7, Issue 4 (Iranian Journal of Ergonomics 2020)
Abstract

Background and Objectives: Bank staff do much of their work using computers, Their equipment and layout may put the body in an inappropriate position and lead to musculoskeletal disorders (MSDs), so this study aimed to determine the prevalence of MSDs in bank staff and its relationship with office tensions.
Methods: This descriptive cross-sectional study was performed on 173 employees of Melli Bank of North Khorasan Province. The prevalence of MSDs was estimated through CMDQ, Risk factors were estimated through ROSA and data were entered into SPSS 20. Then their relationship with each other and with the equipment layout was determined by Spearman test.
Results: The mean ROSA scores were 4.73±0.793 and 63.6% of the postures were in the intervention group. The mean CMDQ scores were 103.63±181.004. Spearman test showed a good correlation between ROSA and CMDQ results (P=0.021, R= 0.175). There was a significant relationship between work experience and prevalence of MSDs (P=0.037, R=0.159). Kruskal-Wallis test showed a significant relationship between education level and CMDQ scores (P=0.38). The most common disorders in the organs were neck (53.8%) and lower back (49.7%).
Conclusion: Given the correlation between the ROSA results and the CMDQ, they can be used together. The change should be considered immediately for persons who are in intervention group. The chair and monitor played a more important role in raising the ROSA score. Improvements should be made by providing an ergonomic chair as well as a proper layout of other equipment such as a monitor.


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.

Investigating the Effect of Fear of COVID‑19 on Psychological Well-being of Nurses with the Moderating Role of Resilience
Seyed Najmoddin Mousavi, Fariborz Fathi Chegeni,
Volume 9, Issue 4 (Iranian Journal of Ergonomics 2022)
Abstract
Background and Objectives: The widespread and contagious nature of the covid-19 virus with it's daunting number of hospital admissions has had ill effects on the psychological well-being of nurses as front line workers. The aim of this study was to investigate the effect of fear of COVID-19 on psychological well- being in nurses with the moderating role of resilience, in Khorramabad Shohadaye Ashayer Hospital.
Methods: The present research is a descriptive study in the branch of field studies in terms of applied purpose and data collection, using survey. The statistical population of the study included 230 nurses working in Khorramabad Shohadaye Ashayer Hospital. Based on Krejcie and Morgan's table, a sample size of 140 people was selected via stratified random sampling method. To measure the variables of the research, a questionnaire was used which included three sections of Fear of COVID-19, psychological well- being and resilience. The reliability of the questionnaire was confirmed using Cronbach's alpha method and its validity was confirmed using convergent validity. For data analysis, structural equation modeling and PLS software have been used.
Results: The results show that at the 95% confidence level, Fear of COVID-19 has a negative and significant effect on nurses' psychological well- being (P < 0.05; β = -0.509) and resilience has a moderating role in relation to Fear of COVID- 19 and psychological well- being (P < 0.05; β = -0.225).
Conclusion: According to the findings, it can be said that fear of Covid- 19 played a significant role in reducing the psychological well- being of nurses and, nurses with higher resilience showed less psychological well- being than nurses with lower resilience.

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