The effects of method of use, tool design, and roof height on trunk muscle activities during underground scaling bar use.


Epidemiologic studies have shown that the scaling bar, a hand tool used in underground mining, is frequently associated with the risk of back injury. An experiment was performed to investigate the effects of method of tool use, mine roof height, and tool design upon the activity of six trunk muscles and the ability to exert force with the bar. Roof height… (More)


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