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http://dx.doi.org/10.5143/JESK.2008.27.3.015

The Effect of Noise and Background Music on the Trunk Muscle Fatigue during Dynamic Lifting and Lowering Tasks  

Kim, Jung-Yong (Department of Information and Industrial Engineering, Hanyang University)
Shin, Hyun-Joo (Department of Safety Engineering, Korea Industrial Safety Association)
Lee, In-Jae (User Interface Engineering, U2 System)
Publication Information
Journal of the Ergonomics Society of Korea / v.27, no.3, 2008 , pp. 15-22 More about this Journal
Abstract
The purpose of this study was to define the effects of noise and background music on the trunk muscle fatigue during dynamic lifting and lowering tasks. Six healthy male subjects with no prior history of low back disorders participated in this study. The participants were exposed to two levels of background noise such as 40dB noise and 90dB noise and three levels of background music such as no music, slow music, and fast music. Six different combinations of background noise and background music were played while the participants were performing the lifting task at 15% level of Maximum Voluntary Contraction. Electromyography signals from six muscles were collected and fatigue levels were analyzed quantitatively. In results, the 90dB noise increased trunk muscle fatigue and slowed down the recovery. The trunk muscle fatigue was the lowest when the fast music was played for as background. After recovery, the 90dB noise increased trunk muscle fatigue. The trunk muscle fatigue was the lowest when the slow music was played for as background. The results can be useful to manage the cumulative fatigue of trunk muscles due to background noise and music during repetitive lifting and lowering tasks in industry.
Keywords
Noise; Background Music; Lifting; Fatigue; EMG;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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