The effect of hands arm vibration symptoms among palm oil harvester with the usage of Cantas machine in Selangor

Mohd Fadzil, Mohd Noraiman (2019) The effect of hands arm vibration symptoms among palm oil harvester with the usage of Cantas machine in Selangor. [Project Paper] (Submitted)

Text lp FPSK4 2019 42 REPAIR 2.pdf Download (32MB)

Abstract

Introduction: A cross sectional study was conducted to determine the effect of hand arm vibration symptoms on 'Cantas' machine among harvester of fresh fruit brunch of palm oil in Selangor as the general objectives. Objectives: The specific objectives are to determine the level of occupational vibration exposure, prevalence of hand-arm vibration syndrome and safety level on usage of Cantas machine as well as to detennine the ergonomics risk factors and the perception on ergonomics design issues of Cantas machine. Methodology: A convenient sampling method approach was used to find those from the list of 104 whose had experienced using Cantas machine and are still good in condition- not faulty, still using the machine. Those whose machine were faulty will be only participating on the questionnaire regarding their perception based on their experience on the machine as well as the ergonomics issues on the machine. The respondent which qualify on the criteria (N= 33) that had been set will be further follow up for the quantitative method which is conducted in order to measure the level of vibration produced by their 'Cantas' machine. Questionnaire survey is use as strategy of enquiry for achieving the objectives. For this study, experiments are to investigate the level of vibration and thus give guidance to users on how to use the machine properly as well as understanding the ergonomic risk factors and issues on design on the harvester. Total hand arm vibration and the average daily working time and exposure were calculated using HVM 100 vibration analyzer. Results and Discussion: The mean (s.d.) age was 56.23±1.813 years. The mean vibration magnitude was 5.24±1.301 m/s2 The mean (s.d) daily vibration exposure for A(8) was 2.30±0. 72 m/s2 The vibration level for working hours is 2.30 tn/s2 .and is deemed safe below the Estimated Action Value 2.5 mis as specified in ISO 5349-1. The calculated results show that the time to reach EAV 2.5 mis A(8) hours is 1.82 hours and time to reach ELV 5.0 mis A (8) hours is 7.28 hours. The prevalence of HAVS based on reported symptoms through questionnaires was 39.4%. None of them reported persistence in the symptoms. However, there were 60.1 % reported on experienced having numbness, 24.2% and none reported on white fingers. This study was done among exposed worker without control group. There were more than 50 times of the occurrence of repetitive work, 26 (86.6%) related to forceful tasks and 13 (43.3%) related to awkward posture of the body especially the hand- arm. The ergonomics risk factor mean score was 2.93 out of a maximum score of 4. Regarding ergonomic design issues the weight and maintenance was at high level, portability, ease of usage, efficiency and difficulty in learning how to operate Cantas machine was at medium level while durability and reachability was on the low level of concern. Conclusion: Regular screening for early signs of vibration-related damage is needed even if workers are subject to only moderate vibration exposure as an ilnportant part of preventing the aggravation of health problems. Exposure time and magnitude of vibration shows a significant prevalence on developing Hand-arm vibration symptoms. Once exposed the symptoms are reversible. The workers also gained awareness regarding vibration exposure and safe working procedure on using Cantas machine. Keywords: Cantas machine, HA VS, vibration, palm oil industry, ergonomic issue,

Item Type:	Project Paper
Subjects:	R Medicine > RC Internal medicine
Faculty:	Faculty of Medicine and Health Science
Depositing User:	Ms Norafizah Radzuan
Date Deposited:	03 Jun 2026 02:57
Last Modified:	03 Jun 2026 02:57
URI:	http://psaspb.upm.edu.my/id/eprint/2822

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