Showing 4 results for Anthropometry
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Volume 5, Issue 1 (5-2013)
Abstract
Background : Lack of anthropometric data in designing work stations, tools and equipment, could be resulted in work related injuries. Therefore, creating anthropometric data bank is essential. The aim of this study was to present anthropometric data from Fars workers and also determining the regression equations between these dimensions and stature as a reference dimension.
Method: A total of 539 Fars workers aged 18-60 from factories which are in 3 provinces participated in this descriptive and cross sectional study. Thirty-seven body dimensions were measured in standard positions presented by Kroemer guidelines, and data were analyzed in SPSS version 18. Mann-Whitney test was used in order to compare measured dimensions between men and women. Moreover, in determination of correlation among anthropometric dimensions, Linear Regression analysis was made.
Results: According to the results, the mean stature of women and men were 158/35 (±6/59) and 172/98 (±6/69) respectively. In relation to stature and other body dimensions, a significant difference were observed between men and women (P value 0<0/05). According to the Linear Regressions analysis, heights of eye, shoulder and elbow in standing positions and grip reach in standing position were significantly correlated with stature (P value 0<0/01).
Conclusion: Significant differences were observed between women and men body dimensions. Furthermore, comparison of stature in the present study with other similar studies has shown a difference that may be due to differences in ethnicity of selected samples. Furthermore, the estimated regression equations can be used in predicting some of the anthropometric dimensions.
Sh Soury, E Habibi, A Hasanzade,
Volume 7, Issue 1 (7-2015)
Abstract
Introduction: Various studies carried out on different photo anthropometry, but each one had some deficiencies which during the years they have been resolved. In the current study in order to determine the anthropometric dimensions of the hand, two-dimensional images were used. And its results were compared with manual methods (caliper). The objective of this paper is to test the efficiency of 2D (Two-dimensional) image processing software in Photo anthropometry of hand.
Methods: In this applied research, 204 workers were selected.7 dimension of their hand was measured. The taken photos were analyzed by Digimizer software, version 4.1.1.0. And Digital Caliper (Model: Mitutoyo Corp, Tokyo, Japan) was used via manual method.
Results: t-test statistical test on data revealed that there is no significant difference between the manual and photo anthropometric results (p>0.05), and the correlation coefficients for hand dimensions are similar in both methods illustrated in the range of 0.9-0.95.
Conclusion: The statistical analyses showed that photo anthropometry can be replaced with manual methods. Also it can provide a great help to develop an anthropometric database for work gloves manufacturers. Since the hand anthropometry is a necessary input for tool design, this survey can be used to determine the percentiles of workers' hands
Parinaz Shokrani, Dr Nima Jamshidi,
Volume 8, Issue 3 (10-2016)
Abstract
Introduction: Musculoskeletal disorders are predominant causes of workers, disabilities and reducing productivity in industrial countries. Studies should one of the jobs that may cause musculoskeletal disorders, is welding. To investigate the causes of these disorders, this study attempts to find relationships between workplace ergonomics, human anthropometry and the amount of force and torque acting on the lumbar vertebrae of welders.
Methods: In this study, two modeling and analysis methods in CATIA V5R20 software and reverse dynamic calculations, were used to assess biomechanical characteristics of 10 manikins with different anthropometric dimensions in 2 different welding positions. Also by using of occupational health and safety standards in software, the motor position of manikins limbs were judged.
Results: Inverse dynamics calculations and CATIA software showed that by increasing the stature of American workers about 13%, the torque and force acting on the L4-L5 vertebrae increase approximately 45-47%. Also, by increasing the length of the upper and lower body segments, the percentage of workers who are not capable of welding, increased. In addition, Comparison between sitting and standing welding showed in sitting welding position, the force acting on the vertebrae is 26-28% more than standing position.
Conclusion: The results of this study compared with international standards such as NIOSH, indicate that by increasing the length of the upper and lower body segments in welders, the force and torque acting on the lumbar vertebrae increased and because of more force and torque in sitting than standing welding position, perils threaten the low-lying levels welders.
Mohamad Amin Mououdi, Haniyeh Goli Talari, Shahrbanoo Nouri Moghadam, Narjes Ghorbani Rameneti, Fariba Ghaem Panah, Morteza Mahdavi,
Volume 10, Issue 4 (3-2019)
Abstract
Introduction: Sleep is an essential element for maintaining health, which is associated with several factors in improving its quality, including the use of a suitable pillow that, with effective support, can support the spine in the neck area and it prevents complications such as headache, neck pain and shoulder pain .The purpose of this study was to provide a suitable pillow design in accordance with the dimensions of Iranian people for proper support in both back and flank positions.
Method: 84 volunteers (40 males and 44 females) with an average age of 29/47 years (SD=7/91) were enrolled. Anthropometric characteristics such as head width in the ear area, head length, head height, etc. were determined using a caliper, a Canon SX60HS camera, a digimizer software, Excel and SPSS version 20. Different percentiles of the body dimensions of men and women were calculated. The findings were used to calculate the dimensions of different parts of the ergonomic pillow.
Results: Based on different dimensions of the head, neck and shoulder area in the sample, the pillow was designed with a width of 70 and a depth of 26/4 cm for men and a width of 65 and a depth of 26/4 cm for women.
Conclusion: It is anticipated that the pillow designed according to anthropometric measurements of Iranian subjects can reduce head and neck pain and spinal problems. It is also recommended that other research has to be done to standardize the dimensions and type of pillow material in all parts of Iran.
