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Effects of Back-belt on Electromyographic Activities and Angle of Lower Back and Extremity during Lifting
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Min Hee Kim, Jung Ah Lee, Do Young Jung, Min Ye Jung
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Korean Journal of Occupational and Environmental Medicine 2005;17(4):259-266. Published online December 31, 2005
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DOI: https://doi.org/10.35371/kjoem.2005.17.4.259
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 Abstract
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- OBJECTIVES
The purpose of this study was to examine the electromyographic activities of the erector spinae muscle of the back and the rectus femoris muscle of the thigh, and to measure the angles of the spinal and knee flexions in order to determine the effect of wearing a back belt.
METHODS
Fifteen healthy males participated in the study. Surface electromyography was used to measure the level of muscle activities at the two muscle groups. The Simi system, utilizing two-dimensional analysis of movement, was used to examine the range of motion of the back and low extremity.
RESULTS
Firstly, the angle of the spinal flexion was significantly less in the back-belt-wearing group than in the control, and that of the knee flexion was significantly increased in the back-belt-wearing group. Secondly, there was no significant change in the electromyographic signals of the erector spinae muscle of the back and the rectus femoris muscle of the thigh.
CONCLUSIONS
The use of back belts helps workers to correct their posture when lifting boxes. It can therefore protect workers from acute back injuries.
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Citations
Citations to this article as recorded by  - Difference of muscle activity and muscle contraction onset time of the trunk and lower extremity according to object weights and leg length discrepancy during lifting tasks
Hyeon Nam Ryu, Sung Jun Han, Jin Tae Han
The Journal of Korean Academy of Physical Therapy Science.2024; 31(2): 30. CrossRef - Correlation among Functional Leg Length Discrepancy, Muscle Activity, Muscle Contraction Onset Time and Vertical Ground Reaction Force during Simple Lifting Task
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The Journal of Korean Physical Therapy.2022; 34(4): 175. CrossRef - Designing a Snow-removing Tool Through Ergonomic Approach
Kwang Tae Jung, Jung Min Nam
Journal of the Ergonomics Society of Korea.2016; 35(5): 439. CrossRef - Effects of low-frequency electrical stimulation on cumulative fatigue and muscle tone of the erector spinae
Da-Haeng Kang, Jae-Keun Jeon, Joon-Hee Lee
Journal of Physical Therapy Science.2015; 27(1): 105. CrossRef - Effect of Pelvic Tilting and the Back-belt on Electromyographic Activity of Erector Spinae During Lifting
Hyung-Ki Park, Tack-Hoon Kim
The Journal of the Korea Contents Association.2009; 9(3): 296. CrossRef
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