Ergonomic hazards are physical occupational conditions that may pose risk of injury to various parts of the musculoskeletal system,[1] such as the muscles or ligaments of the lower back, tendons or nerves of the hands/wrists, or bones surrounding the knees. Ergonomic hazards include things such as awkward or extreme postures, whole-body or hand/arm vibration, poorly designed tools, equipment, or workstations, and inefficient work method or process. Ergonomic hazards could also occur in non-occupational settings such as at home, school, or public spaces and facilities.