Rashid Heidarimoghadam, Majid Motamedzade, Ghodratollah Roshanaei, Rasoul Ahmadi,
Volume 2, Issue 1 (6-2014)
Abstract
Match between school furniture dimensions and children’s anthropometric dimentions in male elementary schools. Rashid Heidari Moghaddam1, Rasoul Ahmadi2 , Majid Motamedzade3, Ghodratollah Roshanaie4 stract: Introduction: Given the important role of appropriate furniture in the posture of the students and that non ergonomic furniture can produce uncomfortable posture, low back pain, neck pain, lack of concentration and discomfort, therefore, this study examine match between school furniture dimensions and children’s anthropometric dimensions in male elementary schools in Hamadan city. Materials and Methods: In this study 600 children have been studied. Their weight and height and their anthropometric dimensions included shoulder height, elbow height, knee height, popliteal height, popliteal-bottock length and hip breadth have been measured. Then, the fitness between current furniture's dimensions and calculated ergonomic dimensions have compared. Results: : Findings showed that dimensions of available furniture included seat height, seat depth, seat width, back rest height, desk height, underneath desk height and anthropometric dimensions of students was not matched. This study has shown that by increasing the seat depth and decreasing the seat height in new designs, they have relatively improved in compare with the old designs. Conclusion: Available school furniture dimensions in Hamadan elementary schools are not appropriate for most students and induce postural discomfort and musculoskeletal disorders. Key words: Ergonomics, Anthropometrics, Design, Furniture 1- Department of Ergonomics, Faculty of Health and Medical Sciences Research Center, School of Public Health. Hamadan University of Medical Science, Hamedan, Iran. 2- Corresponding author, Ergonomics graduate student, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran. 3- Professor, Department of Occupational Hygiene, School of Health and Research Center for Health Sciences, Hamadan University of Medical Sciences, Hamadan, Iran. 4- Roshanaei, Ghodratollah, Department of Biostatistics and Epidemiology. Modeling of Noncommunicable diseases Research center, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran.
Zahra Sharifi, Reza Osqueizadeh, Seyyed Farhad Tabatabai Ghomshe,
Volume 3, Issue 1 (6-2015)
Abstract
Introduction: Job satisfaction and productivity among industrial workforce depend on multiple factors. Among these
factors, designing the workstation based on bodily characteristics and dimensions of the workers is of critical
significance. Since industrial chairs have direct impacts on biomechanical and anthropometric compatibility, they play
a major role in enhancing workers’ interaction with their workplace. The current study approached the redesign of such
a product with a focus on ergonomics.
Materials and Methods: The present research was a typical combined design project. In the quantitative phase, 90
participants underwent 12 anthropometric measurements (which were important in designing industrial chairs). The
underlying cognitive aspects of the question were evaluated via qualitative methodologies.
Results: Since normal distribution of the data was confirmed, raw anthropometric data were descriptively processed
and reported. Cognitive assessments revealed correlations between correct form and softness of the backrest, and
appropriate slope of the seat-pan, being a main factor determining the level of comfort while interacting with industrial
chairs.
Conclusion: Diverse physical constraints and conditions caused by the variety of duties and workstations have made it
somehow difficult for specialists to design a universal industrial chair functioning in all different contexts.
Nevertheless, the current study confirmed the effectiveness of involving personnel in redesigning the workplace and
easing the challenges.
Mohammad Amin Mououdi, Seyed Noroddin Mousavinasab,
Volume 5, Issue 4 (3-2018)
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.
