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By:
Nancy Clark , CIH, CSP; Jonathan Dropkin, MSPT; Lee Kaplan
Ergonomic Risk Factors
Concrete truck drivers show similar exposures to musculoskeletal risk factors as many other professional truck drivers and construction workers. This is shown from the literature review and from site visit videotapes and photographs (appendixes A-C). These exposures include whole-body vibration from driving the trucks, awkward and fixed postures (for instance, while hosing down the inside of the truck and holding the driving wheel of an empty truck over bumpy roads), forceful muscular activities (for instance , lifting heavy chutes, frequently lifting chutes , and activating a drum when discharging concrete), extremes in temperature (cold and hot), and repetitive twisting of the back and neck (for instance, when delivering concrete or looking out the back of a truck). Use work practices to eliminate or reduce risk factors for back injuries . Install equipment that helps drivers minimize twisting and turning while in the cab. For instance, automatically controlled mirrors can allow drivers to view rear work while maintaining more neutral postures. Reduce whole-body vibration in truck cabs by such methods as isolating cab from vibrations, using air-ride suspended seats, and using adjustable, well-padded seats and backrests. Implement frequent (hourly) rest breaks for drivers exposed to extensive whole-body vibration. Minimize lifting activities and awkward postures.
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