Pattern of muscle contraction in different postures among Malaysia pineapple plantation workers

Lower extremity disorders is associated with prolonged and awkward postures such as kneeling, squatting and stooping. Current study aims to examine the risk factors of awkward postures among pineapple plantation workers in Malaysia by using Ovako Working Posture Analysis System (OWAS). The postural...

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Main Authors: N. F. M., Salleh, Ezrin Hani, Sukadarin, N. K., Khamis, R., Ramli
Format: Conference or Workshop Item
Language:English
Published: IOP Publishing 2019
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/24544/1/Pattern%20of%20muscle%20contraction%20in%20different%20postures%20among%20Malaysia%20pineapple%20plantation%20workers.pdf
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author N. F. M., Salleh
Ezrin Hani, Sukadarin
N. K., Khamis
R., Ramli
author_facet N. F. M., Salleh
Ezrin Hani, Sukadarin
N. K., Khamis
R., Ramli
author_sort N. F. M., Salleh
collection UMP
description Lower extremity disorders is associated with prolonged and awkward postures such as kneeling, squatting and stooping. Current study aims to examine the risk factors of awkward postures among pineapple plantation workers in Malaysia by using Ovako Working Posture Analysis System (OWAS). The postural analysis output from OWAS is then compared and validated by using Surface Electromyography (sEMG). There are 103 pineapple plantation workers participated in this study with an average working experience of 1 to 3 years. Based on OWAS findings, it shows for an overall distribution, planting, manual weeding and harvesting are the tasks fell under Action Category (AC) 3 which indicating distinctly harmful and (AC) 4 which indicating extremely harmful. The readings of muscle activity during selected postures show that erector spinae and multifidus muscle are actively contracted during kneeling, squatting and stooping posture. The results from this study signify that long exposure to these postures can increase the likelihood of having WMSDs such as back pain and lower limb injuries among pineapple plantation workers. This study suggests that ergonomic intervention such as mechanization of tools and equipments should be implemented in order to eliminate or reduce poor postures. In case of incapability for any mechanization, adequate and effective training should be provided for the workers as they can apply the knowledge through their job.
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spelling UMPir245442019-05-02T05:09:19Z http://umpir.ump.edu.my/id/eprint/24544/ Pattern of muscle contraction in different postures among Malaysia pineapple plantation workers N. F. M., Salleh Ezrin Hani, Sukadarin N. K., Khamis R., Ramli T Technology (General) Lower extremity disorders is associated with prolonged and awkward postures such as kneeling, squatting and stooping. Current study aims to examine the risk factors of awkward postures among pineapple plantation workers in Malaysia by using Ovako Working Posture Analysis System (OWAS). The postural analysis output from OWAS is then compared and validated by using Surface Electromyography (sEMG). There are 103 pineapple plantation workers participated in this study with an average working experience of 1 to 3 years. Based on OWAS findings, it shows for an overall distribution, planting, manual weeding and harvesting are the tasks fell under Action Category (AC) 3 which indicating distinctly harmful and (AC) 4 which indicating extremely harmful. The readings of muscle activity during selected postures show that erector spinae and multifidus muscle are actively contracted during kneeling, squatting and stooping posture. The results from this study signify that long exposure to these postures can increase the likelihood of having WMSDs such as back pain and lower limb injuries among pineapple plantation workers. This study suggests that ergonomic intervention such as mechanization of tools and equipments should be implemented in order to eliminate or reduce poor postures. In case of incapability for any mechanization, adequate and effective training should be provided for the workers as they can apply the knowledge through their job. IOP Publishing 2019 Conference or Workshop Item PeerReviewed pdf en cc_by http://umpir.ump.edu.my/id/eprint/24544/1/Pattern%20of%20muscle%20contraction%20in%20different%20postures%20among%20Malaysia%20pineapple%20plantation%20workers.pdf N. F. M., Salleh and Ezrin Hani, Sukadarin and N. K., Khamis and R., Ramli (2019) Pattern of muscle contraction in different postures among Malaysia pineapple plantation workers. In: IOP Conference Series: Materials Science and Engineering, 1st International Postgraduate Conference on Mechanical Engineering (IPCME2018) , 31 October 2018 , UMP Library, Pekan. pp. 1-10., 469 (012088). ISSN 1757-899X (Published) https://doi.org/10.1088/1757-899X/469/1/012088
spellingShingle T Technology (General)
N. F. M., Salleh
Ezrin Hani, Sukadarin
N. K., Khamis
R., Ramli
Pattern of muscle contraction in different postures among Malaysia pineapple plantation workers
title Pattern of muscle contraction in different postures among Malaysia pineapple plantation workers
title_full Pattern of muscle contraction in different postures among Malaysia pineapple plantation workers
title_fullStr Pattern of muscle contraction in different postures among Malaysia pineapple plantation workers
title_full_unstemmed Pattern of muscle contraction in different postures among Malaysia pineapple plantation workers
title_short Pattern of muscle contraction in different postures among Malaysia pineapple plantation workers
title_sort pattern of muscle contraction in different postures among malaysia pineapple plantation workers
topic T Technology (General)
url http://umpir.ump.edu.my/id/eprint/24544/1/Pattern%20of%20muscle%20contraction%20in%20different%20postures%20among%20Malaysia%20pineapple%20plantation%20workers.pdf
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