Technology Indian Anthropometric Dimensions For Ergonomic Design Practice Pdf


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Article Information, PDF download for Indian Anthropometric Dimensions for Ergonomic Design Practice By Debkumar Chakrabarti , · Open epub for . Indian anthropometric dimensions for ergonomic design practice by Debkumar Chakrabarti, , National Institute of Design edition. And Chakrabarti, D. A new ergonomic design of a desi plough, Indian J. Human dimensions and related anthropometric measurements.

Indian Anthropometric Dimensions For Ergonomic Design Practice Pdf

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Download Citation on ResearchGate | On Jan 1, , Beverley Norris and others published Indian anthropometric dimensions for ergonomic design practice. Download Citation on ResearchGate | On Jan 31, , Beverley Norris and others published Indian anthropometric dimensions for ergonomic design practice. Get this from a library! Indian anthropometric dimensions for ergonomic design practice. [Debkumar Chakrabarti; National Institute of Design.].

In this research, 9 9 anthropometric dimensions, applied for designing wheelchair and seats, were measured.

Results: This research showed that the average sitting height was Also, the sitting height was Conclusions: The results indicate significant differences among healthy and disabled individuals in anthropometric dimensions and the highest difference was found in the height dimension and access limits. This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.

Background Ergonomics is the science that deals with recognizing the interaction between humans and other system components.

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This science makes use of theories, principles, and methods in design, in order to allow healthy and appropriate performance of the system. Anthropometry is a component of ergonomics 1. A very useful tool in the design process is the application of anthropometry, which is the science of particular body measurements in order to differentiate between individuals, groups, etc. Anthropometry is the measurement of the dimensions and certain other physical characteristics of the body, such as volumes, centers of gravity, inertial properties, mass, and body segments 2.

Experts of ergonomics use anthropometric data to determine the figure and size of the living place, workplace, and tools used by people in all fields of rehabilitation, military, industrial, educational, and sport 3. People with physical disabilities either due to chronic sickness or aging or some other reasons have to spend a large part of their time in a seated posture or confined to wheelchairs 4. At least 2.

This tool assists with self-reliance and active participation in social settings and is used by most physically disabled people. It is clear that the proper design of such a tool is the main effective factor in its application by disabled individuals 6. In other words, the design of appropriate equipment based on anthropometric data results in disabled empowerment, decreased health expenses and allows disabled individuals to live and act in the society like other healthy people 7.

The general lack of anthropometric information about individuals, who are using wheelchairs, limits the ability of designers to create environments and products that could be used effectively and safely by this diverse set of users 2 b.

Therefore, studies showed that the anthropometric data used by experts and designers, dates back to more than 3 decades. It is clear that during this period, people, population demography, and physical features have undergone severe changes 8.

Hence, such data, although available for healthy individuals, is rare for disabled people, who use wheelchairs 9. Also, some designers have designed equipment for disabled people based on the features of healthy people However, due to the low capability of disabled individuals, it is not rational to design their equipment based on the characteristics of healthy people Studies that have been conducted in the field of anthropometry wheelchair users, include Paquet and Feathers studies on male wheelchair users, which determined static anthropometric dimensions 12 , and the study of Lucero-Duarte et al.

Ergonomincs, Debkumar, IITG, IITK, antropometry

This study included disabled people 56 males and 52 females using wheelchair and having sufficiently efficient upper extremities to perform professional activities 1. In the study of Wang et al. However, although important, in Iran, there are practically no studies of this nature and there are only studies applied to people without any disability.

Therefore, due to the importance of determining anthropometric dimensions in the design of equipment and safe living environment for disabled and healthy people and lack of anthropometric data related to wheelchair users in Iran, the purpose of this study was to determine anthropometric dimensions of disabled males and females wheelchair users , and to compare this with common healthy individuals.

This study attempted to answer the question of whether support devices could be designed for disabled cases based on the anthropometric data of healthy individuals. Methods This analytic-descriptive study was performed during year in Tehran City. It is important to note that anthropometric data is influenced by factors, such as age and occupation, type of disability, and degree of disability 1. In order to avoid the aging process, in this study, the age range of the samples was 25 to 55 years old.

No comprehensive study has been done to identify furniture-related health problems among rural Bengalee Indian school children.

Ergonomincs, Debkumar, IITG, IITK, antropometry

In the present investigation, attempts have been made to assess anthropometric dimensions of the rural school children and the extent to which those dimensions mismatch with the physical dimensions of the school furniture. The problems rising because of this mismatch and the related postural change of the school children in the classroom have also been evaluated.

Materials and methods Selection of site The rural areas of West Bengal state India were the target areas of the present investigation. For conducting the present study, 20 rural secondary schools were selected at random from the randomly selected 9 districts out of 19 districts of West Bengal State India.

Each age group indicated a range of age e. Most of the school children in a grade belonged to their respective age groups. The school children of a grade who were not within the specified age group were excluded from the study. The present study was approved by the Human Ethical Committee of the institution, and the experiment was performed in accordance with the ethical standards of the committee and with the Helsinki Declaration.

All the school children volunteered for the present study. From all school children consents were taken according to the rules of the institution.

Evaluation of health complaints Eighty 80 school children from each age group were selected according to alphabetical order of their names from the previously selected children. A questionnaire is presented in the Appendix. Before the interview the experimental protocol was explained to the school children individually. The privacy of the school children was maintained by writing codes name code and school code in the data sheet instead of putting their names directly.

The coding was made by another experimenter. Study of postural pattern of the school children Twenty school children from each age group were selected according to alphabetical order of their names from the previously selected school children. The postural patterns of the selected school children in relation to the school furniture were studied while they attended classes by video photographic method [ 3 ]. The video camera Handicam, Sony Corp. Postural changes of the boys were video recorded during classwork.

Indian anthropometric dimensions for ergonomic design practice

The video records were then transferred to a computer, and the postural changes were analyzed after superimposing time onto it. Careful and repeated observations were made for minimizing errors. One student at a time was observed for one class period.

The major posture changes were observed by considering the changes of body joint angles viz. The locations of the center of joints both left and right joints were marked by placing white stickers before taking the photograph. Stick diagrams were made for measuring the joint angles. Usually the segment of the angle proximal to the body was considered as reference. Judgment of the changes of joint angles when they were not able to be photographed from the perpendicular direction was made by direct observation method.

In this case, body joint angles of the school children were measured by goniometric method [ 4 ] while the children attended classes.

The center of the goniometer was adjusted over the estimated center of the joint, and the reference arms were aligned with the long axes of the adjoining body segments. The change of any joint angle more than 45 degrees was treated as a posture change. The frequency of posture change i. The mean duration of each posture was also calculated. The duration of adopting each posture was also expressed in terms of percentage of the total duration of the class; the average value of 20 school children was given.

Definitions of these joint angles are given below. Neck flexion angle is the angle formed by both the line of the trunk and neck segment. Shoulder joint angle is the angle between the vertical trunk lateral line and the upper arm at the acromial joint region.

Elbow joint angle is the angle between the upper arm and lower arm. Hip joint angle is the angle between the trunk and thigh. Knee joint angle is the angle between the thigh and lower leg. Ankle joint angle is the angle between the lower leg and foot. Evaluation of the design of school furniture In the present investigation, a pair of a benches and a desk were considered as the classroom furniture.

Traditionally, the school children sit on the bench and write on the desk. To get an idea of the shape and size of the classroom furniture, physical dimensions shown in Fig.These requirements may vary according to the local context and the enterprise concerned, because in certain contexts even minor expenditure may be beyond one's financial capacity.

Search inside document. Alex Cowan. Debkumar Chakrabarti, has resulted in satisfying this long felt need. Indian anthropometric dimensions for ergonomic design practice by Debkumar Chakrabarti 25 Want to read 7 Currently reading Published by National Institute of Design in Ahmedabad.

Materials and methods Selection of site The rural areas of West Bengal state India were the target areas of the present investigation.