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Ergonomics is a term derived from the Greek word ergo, meaning "work", and nomos, meaning "natural laws of" or "study of."
Ergonomics is the science of designing jobs, selecting tools, and modifying work methods to better fit workers' capabilities and prevent injury. Ergonomics involves making a good fit between the job and the worker. The goal is to maximize health, safety, comfort, efficiency, productivity, and quality.
A work-related musculoskeletal disorder (WMSD) is one of a group of disorders that affect tendons, muscles, ligaments, and related bones and nerves.
Studies and anecdotal reports suggest that these disorders may be caused, precipitated or exacerbated by repeated, forceful exertions of the body, especially if in combination with awkward or non-neutral postures.
Potential ergonomic risk factor refers to an excessive force, awkward or non-neutral posture, static posture, repetitive motion, mechanical stress, or vibration that may put one at risk of injury or discomfort.