Analysis of Muscle Activity using Surface Electromyography for Muscle Performance in Manual Lifting Task

Isa, Halim and Noor Rawaida , Omar and Kamat, Seri Rahayu and Abdullah, Rohana and Saptari, Adi and Mohd Shahrizan, Othman (2014) Analysis of Muscle Activity using Surface Electromyography for Muscle Performance in Manual Lifting Task. Applied Mechanics and Materials, 564. pp. 644-649. ISSN 1660-9336

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Abstract

In industries, manual lifting is commonly practiced even though mechanized material handling equipment are provided. Manual lifting is used to transport or move products and goods to a desired place. Improper lifting techniques contribute to muscle fatigue and low back pain that can lead to work efficiency and low productivity. The objective of this study were to analyze muscle activity in the left and right Erector Spinae, and left and right Biceps Brachii of five female subjects while performing manual lifting task with different load mass, lifting height and twist angle. The muscle activity was measured and analyzed using surface electromyography (sEMG).This study found that the right Biceps Brachii, right and left Erector Spinae experienced fatigue while performing asymmetric lifting (twist angle = 90°) at lifting height of 75 cm and 140 cm with load mass of 5 kg and 10 kg. Meanwhile, the left Biceps Brachii experienced fatigue when the lifting task was set at lifting height of 75 cm, load mass of 5 kg and twist angle of 90°.The load mass and lifting height has a significant influence to Mean Power Frequency (MPF) for left Biceps Brachii, left and right Erector Spinae. This study concluded that reducing the load mass can increase the muscles performance which can extend the transition-to-fatigue stage in the left and right Biceps Brachii and Erector Spinae.

Item Type:	Article
Subjects:	T Technology > TS Manufactures
Divisions:	Faculty of Manufacturing Engineering > Department of Manufacturing Management
Depositing User:	Dr. Isa Halim
Date Deposited:	28 May 2014 02:56
Last Modified:	28 May 2015 04:25
URI:	http://eprints.utem.edu.my/id/eprint/12558
Statistic Details:	View Download Statistic

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