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the science of designing equipment, areas and tasks to make them safer and to suit the worker's abilities
a belt made of canvas or other heavy material used to help people who are weak, unsteady, or uncoordinated to stand, sit, or walk; also called a transfer belt
special equipment used to lift and move or lift and weigh a person; also called hydraulic lift
rubbing or friction resulting from the skin moving one way and the bone underneath it remaining fixed or moving in the opposite direction
position in which a person is in a left side-lying position with the upper knee flexed and raised toward the chest
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