期刊名称：Annals of Agricultural and Environmental Medicine
印刷版ISSN：1232-1966
电子版ISSN：1898-2263
出版年度：2007
卷号：14
期号：02
页码：299-299
出版社：Institute of Agricultural Medicine in Lublin
摘要：The objective of the study was the preliminary recognition of whole body mechanical
vibration risk among farmers in the rural work environment. The study covered
15 farms using cultivated land of the size of over 10 ha, carrying out mixed production
(plant-animal), equipped with agricultural tractors, and a basic set of tractor-mounted agricultural
machinery, with a partial contribution of self-propelled agricultural machines.
The scope of the study covered the measurements of effective vibration RMS acceleration
(equivalent, maximum, minimum, peak) frequency corrected on the seats of agricultural
vehicles in the three spatial directions of vibration (X, Y, Z). These measurements were
realized while performing various fi eld and transport work activities during the period of
the whole year. A analysis of the peak, maximum and minimum vibration accelerations
confi rms that in the agricultural occupational environment there occurs a considerable
variation of the vibration values registered. This is also evidenced by high values of the
Crest Factor, sometimes exceeding a score of 10. Analysis of the registered equivalent
values of vibration acceleration (frequency corrected) from the hygienic aspect showed
that vibration occurring on the seats may create risk for farmers’ health while performing
such work activities as: tedding and raking of hay, fertilizers spreading, soil aggregation,
grass mowing and cultivation. Analysis of the spatial distribution of the measured, frequency
corrected vibration accelerations indicates that considerably the highest acceleration
values occur in the vertical plane (direction – Z). Literature data clearly confi rm an
unfavourable effect of whole body vibration present in agricultural vehicles on discomfort
and the occurrence of back pain in the operators, especially in the low back region
(lumbar spine), as well as degenerative changes in the spine.
关键词：whole body vibration, tractor operators, corrected vibration acceleration,
fi eld work activities, back pain, degenerative changes in the spine.
