Evaluation of transmissibility properties of anti-fatigue mats used by workers exposed to foot-transmitted vibration
Keywords:Anti-fatigue, Continued use, Dominant frequency, Field studies, Head injuries, Higher frequencies, Lower body, Musculoskeletal injuries, Underground mine, Vibration exposure
AbstractA study reported considerable differences in the dominant frequency associated with locomotive operation compared to drilling or bolting off from platforms, suggesting a rationale for greater reports of vibration-induced white feet in workers with a history of exposure to higher frequency vibration at the feet. Ten participants, with no history of lower body musculoskeletal injury, head injury, diabetes, vasculopathy, or neuropathy, participated in this study. A four mat by two vibration exposure profile experimental design with one repeat was carried out. A mat effective amplitude transmissibility (MEAT) value greater than 100% indicated vibration was amplified as it traveled through the mat while a value less than 100% suggested the mat attenuated the vibration. Positive anecdotal feedback provided by miners in a field study also supports continued use of mats in underground mines.
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