Manual Handling Hazards
Any job that involves heavy labor or manual material handling may include a high risk for injury on the job. Manual material handling entails lifting, but also usually includes climbing, pushing, pulling, and pivoting, all of which pose the risk of injury to the back. MMH work contributes to a large percentage of a 1.1 million cases of musculoskeletal disorders reported annually in the United States. Musculoskeletal disorders often involve strains and sprains to the lower back, shoulders, and upper limbs. Potentially injurious tasks may involve bending and twisting, repetitive motions, carrying or lifting heavy loads, and maintaining fixed positions for a long time. MMH under these conditions can lead to damaged muscles, tendons, ligaments, nerves, and blood vessels.
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