Citation

He LH, Wang S, Shen P, Yu H, Liang HY, Wu WW, Hou SX. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2004; 22(4): 254-256.

Affiliation

Department of Occupational and Environmental Health, Peking University Health Science Center, Beijing 100083, China.

Copyright

(Copyright © 2004, Tianjin shi lao dong wei sheng yan jiu suo)

DOI

unavailable

PMID

15355701

Abstract

OBJECTIVE: To observe low back fatigue of subjects before and after simulated driving, and to study the role of the belt used in prevention of low back fatigue of drivers during driving. METHODS: To assess the changes in median frequency (MF), mean power frequency (MPF) of surface electromyogram (SEMG), and flicker frequency, visuognosis persistence of drivers with and without protective belt in simulated driving. RESULTS: There were significant differences in MF [(47.35 +/- 6.07), (39.26 +/- 5.79), (47.21 +/- 6.02), (43.44 +/- 6.26) Hz respectively], MPF [(69.86 +/- 7.08), (59.12 +/- 7.19), (69.86 +/- 7.08), (63.88 +/- 7.49) Hz respectively] between before and after simulated driving without or with the special belt (P < 0.01). But no differences in MF or MPF between without and with the belt before simulated driving were found (P > 0.05). The flicker frequency [(35.64 +/- 2.82), (42.31 +/- 4.68), (35.96 +/- 3.05), (39.79 +/- 3.36) Hz], visuognosis persistence (65.77% +/- 3.94%, 56.83% +/- 5.68%, 65.88% +/- 3.92%, 62.27% +/- 2.91%) had some changes too. CONCLUSION: Simulated diving could induce fatigue of back muscle in drivers. However, the protective belt can effectively prevent low back fatigue of drivers in simulated driving.

Language: zh