Association between hand-arm vibration syndrome and vibrotactile perception thresholds among power tool users in an automobile industry, Malaysia

A cross sectional study was conducted to determine the prevalence of hand-arm vibration syndrome (HAVS) and also ascertain the relationship between HAVS and the increase in threshold level of vibrotactile perception threshold (VPT) among workers using vibration hand-held tools in an automobile indus...

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Main Author:	Yusoff, Nor Maizura
Format:	Thesis
Language:	English English
Published:	2012
Subjects:	Hand Injuries Vibration - adverse effects Arm Injuries
Online Access:	http://psasir.upm.edu.my/id/eprint/22044/1/FPSK%28m%29%202012%208R.pdf
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id	my-upm-ir.22044
record_format	uketd_dc
spelling	my-upm-ir.220442024-07-17T02:42:12Z Association between hand-arm vibration syndrome and vibrotactile perception thresholds among power tool users in an automobile industry, Malaysia 2012-06 Yusoff, Nor Maizura A cross sectional study was conducted to determine the prevalence of hand-arm vibration syndrome (HAVS) and also ascertain the relationship between HAVS and the increase in threshold level of vibrotactile perception threshold (VPT) among workers using vibration hand-held tools in an automobile industry. The study was designed using structured questionnaire and non invasive measurement of VPT at the fingertips and was conducted in one of the automobile company in Klang Valley. A total of 109 assembly line workers with at least one year of job tenure participated in this study. The mean age was 32.9±6.82 years. The mean daily vibration exposure for 8-hours was 1.41±0.878 m/s2. There was 11% of the tools measured were above the Action Level recommended by European Union Directive 2002. The overall prevalence of HAVS based on the reported symptoms through questionnaires was 27.5%. None of the respondents reported any whiteness on their fingers due to the exposure of the vibrations. However, 36.7% of the respondents were reportedly to experience a tingling sensation, 57.8 % reported of having the feeling of numbness on their hands and 10.1% claim that the symptoms were persistent. This study was done among exposed workers without a control group; the thresholds were measured by comparing the observed vibrotactile perception threshold with the vibrotactile perception threshold of healthy population provided by ISO 13091-2. The result showed that 98.2% of the respondents in this study were having a positive threshold which indicates the percentage of respondents that having deterioration on finger tactile perception. The positive threshold from comparison above showed that the respondents of this study were affected by the vibration exposure. The value proven that the exposure has caused the deterioration of tactile sensitivity in 98.2% of the respondents in this study which showed by having positive threshold compared to the healthy population. The results also showed that there was a significant correlation between daily vibration exposure A(8) and vibrotactile perception threshold at both frequency tested which was 31.5Hz (r = 0.417, p=0.002) and 125Hz (r = 0.480, p =0.001). In conclusion, even though the mean daily vibration exposure for 8-hours was low and below the action level, the correlation was observed between exposure to vibration and vibrotactile perception threshold. However, results show that there is no significant relationship between vibrotactile perception threshold and reported symptoms of hand-arm vibration syndrome (p>0.05). Hand Injuries Vibration - adverse effects Arm Injuries 2012-06 Thesis http://psasir.upm.edu.my/id/eprint/22044/ http://psasir.upm.edu.my/id/eprint/22044/1/FPSK%28m%29%202012%208R.pdf text en staffonly masters Universiti Putra Malaysia Hand Injuries Vibration - adverse effects Arm Injuries Faculty of Medicine and Health Science Md Tamrin, Shamsul Bahri English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
advisor	Md Tamrin, Shamsul Bahri
topic	Hand Injuries Vibration - adverse effects Arm Injuries
spellingShingle	Hand Injuries Vibration - adverse effects Arm Injuries Yusoff, Nor Maizura Association between hand-arm vibration syndrome and vibrotactile perception thresholds among power tool users in an automobile industry, Malaysia
description	A cross sectional study was conducted to determine the prevalence of hand-arm vibration syndrome (HAVS) and also ascertain the relationship between HAVS and the increase in threshold level of vibrotactile perception threshold (VPT) among workers using vibration hand-held tools in an automobile industry. The study was designed using structured questionnaire and non invasive measurement of VPT at the fingertips and was conducted in one of the automobile company in Klang Valley. A total of 109 assembly line workers with at least one year of job tenure participated in this study. The mean age was 32.9±6.82 years. The mean daily vibration exposure for 8-hours was 1.41±0.878 m/s2. There was 11% of the tools measured were above the Action Level recommended by European Union Directive 2002. The overall prevalence of HAVS based on the reported symptoms through questionnaires was 27.5%. None of the respondents reported any whiteness on their fingers due to the exposure of the vibrations. However, 36.7% of the respondents were reportedly to experience a tingling sensation, 57.8 % reported of having the feeling of numbness on their hands and 10.1% claim that the symptoms were persistent. This study was done among exposed workers without a control group; the thresholds were measured by comparing the observed vibrotactile perception threshold with the vibrotactile perception threshold of healthy population provided by ISO 13091-2. The result showed that 98.2% of the respondents in this study were having a positive threshold which indicates the percentage of respondents that having deterioration on finger tactile perception. The positive threshold from comparison above showed that the respondents of this study were affected by the vibration exposure. The value proven that the exposure has caused the deterioration of tactile sensitivity in 98.2% of the respondents in this study which showed by having positive threshold compared to the healthy population. The results also showed that there was a significant correlation between daily vibration exposure A(8) and vibrotactile perception threshold at both frequency tested which was 31.5Hz (r = 0.417, p=0.002) and 125Hz (r = 0.480, p =0.001). In conclusion, even though the mean daily vibration exposure for 8-hours was low and below the action level, the correlation was observed between exposure to vibration and vibrotactile perception threshold. However, results show that there is no significant relationship between vibrotactile perception threshold and reported symptoms of hand-arm vibration syndrome (p>0.05).
format	Thesis
qualification_level	Master's degree
author	Yusoff, Nor Maizura
author_facet	Yusoff, Nor Maizura
author_sort	Yusoff, Nor Maizura
title	Association between hand-arm vibration syndrome and vibrotactile perception thresholds among power tool users in an automobile industry, Malaysia
title_short	Association between hand-arm vibration syndrome and vibrotactile perception thresholds among power tool users in an automobile industry, Malaysia
title_full	Association between hand-arm vibration syndrome and vibrotactile perception thresholds among power tool users in an automobile industry, Malaysia
title_fullStr	Association between hand-arm vibration syndrome and vibrotactile perception thresholds among power tool users in an automobile industry, Malaysia
title_full_unstemmed	Association between hand-arm vibration syndrome and vibrotactile perception thresholds among power tool users in an automobile industry, Malaysia
title_sort	association between hand-arm vibration syndrome and vibrotactile perception thresholds among power tool users in an automobile industry, malaysia
granting_institution	Universiti Putra Malaysia
granting_department	Faculty of Medicine and Health Science
publishDate	2012
url	http://psasir.upm.edu.my/id/eprint/22044/1/FPSK%28m%29%202012%208R.pdf
_version_	1811767704540938240

Association between hand-arm vibration syndrome and vibrotactile perception thresholds among power tool users in an automobile industry, Malaysia

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