Experimental Analysis of Lumbar Vibration Characteristic Based on EMG and Acceleration Signal

doi:10.12068/j.issn.1005-3026.2018.02.017

Journal of Northeastern University Natural Science ›› 2018, Vol. 39 ›› Issue (2): 232-236.DOI: 10.12068/j.issn.1005-3026.2018.02.017

• Mechanical Engineering • Previous Articles Next Articles

Experimental Analysis of Lumbar Vibration Characteristic Based on EMG and Acceleration Signal

DONG Rui-chun， GUO Li-xin， YUAN Sheng， GE Wei

School of Mechanical Engineering & Automation， Northeastern University， Shenyang 110819， China.

Received:2016-09-13 Revised:2016-09-13 Online:2018-02-15 Published:2018-02-09
Contact: GUO Li-xin
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Abstract

Abstract: A vibration experiment is conducted to study the influence of automobile seat on human lumbar muscle tissue during whole body vibration. Lumbar muscle response is analyzed by calculating root mean square (RMS) of electromyography (EMG) signal， and the vibration energy transmitting characteristic of lumbar tissue is studied by analyzing the vibration transmissibility. At last the vibration transmissibility and EMG RMS of all subjects under different lumbar support conditions are conducted statistically. The experiment result indicates that when lumbar support parameter is d₂ (appropriate support)， vibration transmissibility and EMG RMS are minimum， while other two lumbar support parameters d₁(no support) and d₃ (excessive support) magnify lumbar vibration transmissibility and EMG RMS. The experiment proved that appropriate lumbar support of automobile seat can reduce effect degree of vibration on human lumbar.

Key words: whole body vibration, EMG signal, lumbar support, vibration transmissibility, acceleration

CLC Number:

U461.4

DONG Rui-chun， GUO Li-xin， YUAN Sheng， GE Wei. Experimental Analysis of Lumbar Vibration Characteristic Based on EMG and Acceleration Signal[J]. Journal of Northeastern University Natural Science, 2018, 39(2): 232-236.

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Experimental Analysis of Lumbar Vibration Characteristic Based on EMG and Acceleration Signal

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