Prediction model of hand arm vibration exposure among hand-held grass-cutters in Malaysia

Prolonged exposures to hand-transmitted vibrations from grass-cutting machines have been associated with increasing occurrences of signs of occupational diseases related to the hand-arm vibration syndrome (HA VS). However, there are no specific processes available that cover the objective and subjec...

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Main Author:	Azmir, Nor Azali
Format:	Thesis
Language:	English English English
Published:	2016
Subjects:	RC Internal medicine RC581-951 Specialties of internal medicine
Online Access:	http://eprints.uthm.edu.my/10038/1/24p%20NOR%20AZALI%20AZMIR.pdf http://eprints.uthm.edu.my/10038/2/NOR%20AZALI%20AZMIR%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/10038/3/NOR%20AZALI%20AZMIR%20WATERMARK.pdf
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id	my-uthm-ep.10038
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spelling	my-uthm-ep.100382023-10-01T02:07:36Z Prediction model of hand arm vibration exposure among hand-held grass-cutters in Malaysia 2016-08 Azmir, Nor Azali RC Internal medicine RC581-951 Specialties of internal medicine Prolonged exposures to hand-transmitted vibrations from grass-cutting machines have been associated with increasing occurrences of signs of occupational diseases related to the hand-arm vibration syndrome (HA VS). However, there are no specific processes available that cover the objective and subjective health cause-effects of the hand arm vibration risk factors during onsite operations. Most of the existing vibration control measures have not extensively integrated administration and engineering techniques to be utilized as health prediction screening models. Therefore, the main objectives of this study are to integrate the engineering and administration control approach for reducing HA VS among hand-held grass-cutting workers and to determine the significant correlation of the objective and subjective measurement variables of the Hand Arm Vibration Exposure Risk Assessment (HAVERA) on hand arm vibration symptoms and disorders. The study was conducted in two stages: evaluation of the HA VERA variables (Stage 1) and development of the health prediction cause-effect model of the HA VERA process using multiple linear regressions and feed forward neural network programming (Stage 2). For the onsite measurement, the daily vibration value depicted an exceeded exposure action value of 2.5 m/s2 for both hands; and experiences of any finger colour change were claimed by 80% of the 204 subjects. This shows that the HA VERA process provided a good indication of HA VS which are reported as vascular, neurological and musculoskeletal disorders. In the right and left hand prediction model development, the results of the neural network model demonstrated a higher reliability performance as compared to the linear model for hand grip strength and hand numerical scoring assessment. The prediction of the HA VERA model using the neural network method has been developed for monitoring health conditions due to hand-transmitted vibrations among hand-held grass-cutting workers in Malaysia 2016-08 Thesis http://eprints.uthm.edu.my/10038/ http://eprints.uthm.edu.my/10038/1/24p%20NOR%20AZALI%20AZMIR.pdf text en public http://eprints.uthm.edu.my/10038/2/NOR%20AZALI%20AZMIR%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/10038/3/NOR%20AZALI%20AZMIR%20WATERMARK.pdf text en validuser phd doctoral Universiti Tun Hussein Onn Malaysia Fakulti Kejuruteraan Mekanikal dan Pembuatan
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	RC Internal medicine RC581-951 Specialties of internal medicine
spellingShingle	RC Internal medicine RC581-951 Specialties of internal medicine Azmir, Nor Azali Prediction model of hand arm vibration exposure among hand-held grass-cutters in Malaysia
description	Prolonged exposures to hand-transmitted vibrations from grass-cutting machines have been associated with increasing occurrences of signs of occupational diseases related to the hand-arm vibration syndrome (HA VS). However, there are no specific processes available that cover the objective and subjective health cause-effects of the hand arm vibration risk factors during onsite operations. Most of the existing vibration control measures have not extensively integrated administration and engineering techniques to be utilized as health prediction screening models. Therefore, the main objectives of this study are to integrate the engineering and administration control approach for reducing HA VS among hand-held grass-cutting workers and to determine the significant correlation of the objective and subjective measurement variables of the Hand Arm Vibration Exposure Risk Assessment (HAVERA) on hand arm vibration symptoms and disorders. The study was conducted in two stages: evaluation of the HA VERA variables (Stage 1) and development of the health prediction cause-effect model of the HA VERA process using multiple linear regressions and feed forward neural network programming (Stage 2). For the onsite measurement, the daily vibration value depicted an exceeded exposure action value of 2.5 m/s2 for both hands; and experiences of any finger colour change were claimed by 80% of the 204 subjects. This shows that the HA VERA process provided a good indication of HA VS which are reported as vascular, neurological and musculoskeletal disorders. In the right and left hand prediction model development, the results of the neural network model demonstrated a higher reliability performance as compared to the linear model for hand grip strength and hand numerical scoring assessment. The prediction of the HA VERA model using the neural network method has been developed for monitoring health conditions due to hand-transmitted vibrations among hand-held grass-cutting workers in Malaysia
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Azmir, Nor Azali
author_facet	Azmir, Nor Azali
author_sort	Azmir, Nor Azali
title	Prediction model of hand arm vibration exposure among hand-held grass-cutters in Malaysia
title_short	Prediction model of hand arm vibration exposure among hand-held grass-cutters in Malaysia
title_full	Prediction model of hand arm vibration exposure among hand-held grass-cutters in Malaysia
title_fullStr	Prediction model of hand arm vibration exposure among hand-held grass-cutters in Malaysia
title_full_unstemmed	Prediction model of hand arm vibration exposure among hand-held grass-cutters in Malaysia
title_sort	prediction model of hand arm vibration exposure among hand-held grass-cutters in malaysia
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Fakulti Kejuruteraan Mekanikal dan Pembuatan
publishDate	2016
url	http://eprints.uthm.edu.my/10038/1/24p%20NOR%20AZALI%20AZMIR.pdf http://eprints.uthm.edu.my/10038/2/NOR%20AZALI%20AZMIR%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/10038/3/NOR%20AZALI%20AZMIR%20WATERMARK.pdf
_version_	1783728959630868480

Prediction model of hand arm vibration exposure among hand-held grass-cutters in Malaysia

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