Development of an ergonomic risk assessment tool for work postures

The most widely used method for assessing work-related musculoskeletal disorders (WMSDs) is still the observational method, mainly because it is inexpensive and practical for use in a wide range of workplaces. However, there are no tools available that cover the wide range of physical risk factors a...

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Main Author: Abdol Rahman, Mohd. Nasrull
Format: Thesis
Language:English
Published: 2014
Subjects:
Online Access:http://eprints.utm.my/78772/1/MohdNasrullAbdolPFKM2014.pdf
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author Abdol Rahman, Mohd. Nasrull
author_facet Abdol Rahman, Mohd. Nasrull
author_sort Abdol Rahman, Mohd. Nasrull
collection ePrints
description The most widely used method for assessing work-related musculoskeletal disorders (WMSDs) is still the observational method, mainly because it is inexpensive and practical for use in a wide range of workplaces. However, there are no tools available that cover the wide range of physical risk factors at workplaces. Most of the existing observational methods have not been extensively tested for their reliability and validity during the development process. Therefore, the main objectives of this study are to (1) to develop a new observational technique called the Workplace Ergonomic Risk Assessment (WERA) method and (2) to determine the reliability and validity of the WERA method. The study was conducted in two phases: development of the WERA paper checklist from scientific evidence and literature review (Phase 1) and development of the WERA software program using Visual Basic programming (Phase 2). In the validity trials, the relationship of the main WERA body part scores to the development of pain or discomfort was statistically significant for the wrist, shoulder, and back regions. This shows that the WERA assessment provided a good indication of work related musculoskeletal disorders which may be reported as pains, aches or discomfort in the relevant body area. In the reliability trials, the results of inter-observer reliability demonstrated moderate agreement among the observers (K=0.41) from the feedback survey about the usability of WERA tool. On the other hand, all participants were agreed that the WERA tool was easy and quick to use, applicable to workplace assessment for the wide range of tasks, and valuable at work. The WERA tool has been developed for both paper checklist and software program use. It can be used to identify the physical risk factors associated with WMSDs at workplaces.
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spelling utm.eprints-787722018-09-17T04:08:39Z http://eprints.utm.my/78772/ Development of an ergonomic risk assessment tool for work postures Abdol Rahman, Mohd. Nasrull TJ Mechanical engineering and machinery The most widely used method for assessing work-related musculoskeletal disorders (WMSDs) is still the observational method, mainly because it is inexpensive and practical for use in a wide range of workplaces. However, there are no tools available that cover the wide range of physical risk factors at workplaces. Most of the existing observational methods have not been extensively tested for their reliability and validity during the development process. Therefore, the main objectives of this study are to (1) to develop a new observational technique called the Workplace Ergonomic Risk Assessment (WERA) method and (2) to determine the reliability and validity of the WERA method. The study was conducted in two phases: development of the WERA paper checklist from scientific evidence and literature review (Phase 1) and development of the WERA software program using Visual Basic programming (Phase 2). In the validity trials, the relationship of the main WERA body part scores to the development of pain or discomfort was statistically significant for the wrist, shoulder, and back regions. This shows that the WERA assessment provided a good indication of work related musculoskeletal disorders which may be reported as pains, aches or discomfort in the relevant body area. In the reliability trials, the results of inter-observer reliability demonstrated moderate agreement among the observers (K=0.41) from the feedback survey about the usability of WERA tool. On the other hand, all participants were agreed that the WERA tool was easy and quick to use, applicable to workplace assessment for the wide range of tasks, and valuable at work. The WERA tool has been developed for both paper checklist and software program use. It can be used to identify the physical risk factors associated with WMSDs at workplaces. 2014-01 Thesis NonPeerReviewed application/pdf en http://eprints.utm.my/78772/1/MohdNasrullAbdolPFKM2014.pdf Abdol Rahman, Mohd. Nasrull (2014) Development of an ergonomic risk assessment tool for work postures. PhD thesis, Universiti Teknologi Malaysia, Faculty of Mechanical Engineering. http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:107025
spellingShingle TJ Mechanical engineering and machinery
Abdol Rahman, Mohd. Nasrull
Development of an ergonomic risk assessment tool for work postures
title Development of an ergonomic risk assessment tool for work postures
title_full Development of an ergonomic risk assessment tool for work postures
title_fullStr Development of an ergonomic risk assessment tool for work postures
title_full_unstemmed Development of an ergonomic risk assessment tool for work postures
title_short Development of an ergonomic risk assessment tool for work postures
title_sort development of an ergonomic risk assessment tool for work postures
topic TJ Mechanical engineering and machinery
url http://eprints.utm.my/78772/1/MohdNasrullAbdolPFKM2014.pdf
work_keys_str_mv AT abdolrahmanmohdnasrull developmentofanergonomicriskassessmenttoolforworkpostures