ABSTRACT
Off-road machinery drivers are exposed to a number of occupational hazards. Whole-body vibration and awkward postures are two of the most prevalent in this population; this chapter addresses potential risks of combined postural constraints with whole-body vibration exposure. Operators of earthmoving machinery are regularly exposed to a range of occupational hazards. The nature of their working task can expose them to unsafe magnitudes of whole-body vibration and shock, in conjunction with a variety of postural constraints. It is important to understand the interactions between vibration exposure and non-neutral postures to improve understanding of the biomechanical responses of the human body. Many studies have been performed to investigate the transmissibility of vibration from the seat to the head for subjects exposed to translational whole-body vibration. Subjects held a bite-bar tightly in their mouth comprising accelerometers mounted on the left and right side and at the back of the head.
