Fatores que influenciam a vibração ocupacional de corpo inteiro em tratores agrícolas

Abstract

Agricultural mechanization has brought with it technological advances, not only the optimization of productivity with the improvement of labor and the use of machines, but has also transformed labor relations in the field and the way workers are exposed to new agents, among them, vibration. Occupational vibration is a physical agent, potentially harmful to the body. Agricultural tractor operators are exposed every day to this agent in some intensity, and may present diseases or health problems ranging from nausea and dizziness to serious musculoskeletal lesions in the spinal column region. The objective of this study was to perform a literature review of five of the main factors that influence whole body vibration levels during mechanized operations in the agricultural environment, investigating how they act. The factors that influence whole body vibration analyzed in the study were: travel speed, rolling surface, tire types, internal tire pressure, and the use of implements. The evaluations pointed to the directly proportional influence with the increase of the speed of operation and the use of soil preparation implements, in the increase of vibration indices, in the operator's body and the need for further individual studies and correlations, as well as the need for specific vibration analyses for each agricultural operation.