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  • Title: [Evaluation of health risk in machine operators exposed to whole body vibration].
    Author: Langauer-Lewowicka H, Harazin B, Brzozowska I, Szłapa P.
    Journal: Med Pr; 1996; 47(2):97-106. PubMed ID: 8657008.
    Abstract:
    A total of 45 machine operators employed at the same power station were examined with special emphasis put on the musculoskeletal system. A group of 15 bulldozer operators, 19 engine operators and 11 tractor drives were exposed to the whole-body vibration with average vertical equivalent acceleration ranging from 0.2 mg-2 to 0.5 ms-2 r.m.s. The incidence of low back complaints over a period of 12 months was similar to that observed in the occupational study groups. However, back pains combined with other health disorders were most common in bulldozer operators (80%) while the lowest percentage (36%) of such cases was observed among tractor drivers. The analysis of lifetime exposure to the whole body vibration in both groups showed that bulldozer operators worked only 5 years longer, on average, but they spent twice as many hours at work as tractor drivers. The study indicates that individual lifetime exposure to the whole-body vibration may play an important part in the evaluation of health effects.
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