United States Manager Of Landfill Operations (MOLO) Practice Test

Ergonomic injuries are injuries to the musculoskeletal system that come from repetitive motions, awkward postures, forceful exertions, vibration, or insufficient rest. These injuries develop over time due to cumulative stress on the body, rather than from a single acute incident. Common examples include tendinitis, carpal tunnel syndrome, and low back pain that arise from activities like repetitive typing, assembly tasks, or heavy lifting performed with poor technique. This makes the correct option the best fit because it directly describes musculoskeletal injuries caused by repetitive stress and related work factors, which is the essence of ergonomic injury in the workplace. In contrast, injuries from hazardous chemicals involve chemical exposure, those from infectious diseases involve pathogens, and injuries from electrical shocks involve electrical hazards—none of which are ergonomic in nature. Understanding this distinction helps focus prevention on proper workstation setup, tool and task design, pacing, breaks, and training to reduce repetitive strain.