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Evaluation on the Effect of Whole Body Vibration on EEG Frequency-Fluctuation  

Min, Byung-Chan (Department of Industrial and Management Engineering, Hanbat National University)
Kim, Hyoung-Wook (Korea Institute of Machinery and Materials(KIMM))
Kim, Ji-Kwan (Dept. of Industrial and Systems Engineering, Changwon National University)
Publication Information
Journal of Korean Society of Industrial and Systems Engineering / v.30, no.4, 2007 , pp. 71-77 More about this Journal
Abstract
In this study, reactions of central nervous systems working against different conditions of forced frequency and acceleration were measured and analyzed. The experiment are conducted with health men. The steady vibration conditions of forced frequency (0.315m/s2-1.0Hz, 0.315m/s2-10Hz and 10Hz-1.0m/s2) are used and the waves of EEG (Electroencephalogram) are measured. As a result, this paper shows that the ${\alpha}-wave$ of frontal lobe transfers from low to high frequency band under the vibration environment. Additionally, the average frequency of ${\alpha}-wave$ is higher under the vibration than under non-vibration environment. In the case of forced frequency of 1.0Hz-0.315m/s2, the feeling with the vibration are nearly same compared with the non-vibration condition. But in the case of 10Hz-1.0m/s2, uncomfortable feeling increased compared with the non-vibration condition. This study also shows the relationship between fluctuation slop and feeling. From this study, it is found that the effect of vibration on human depends on acceleration characteristics. Highly accelerating vibration is more harmful to human.
Keywords
Vibration; Frequency Fluctuation; Acceleration;
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