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Showing 3 results for Mousavinasab

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 childrens 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.


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.

 

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.



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