Ergonomics considers the physical and mental capabilities and limits of the worker as he or she interacts with tools, equipment, work methods, tasks, and the working environment. The four elements of a typical ergonomics program are worksite analysis, hazard prevention and control, medical management, and training and education. It is changing the jobs, workstations, tools or environment to fit the worker. Hazard prevention and control is an element of the ergonomics program. Can also result when using a part of the body as a hammer or striking instrument.
Medical management is an element of the ergonomics program.
The parts of the musculoskeletal system are bones, muscles, tendons, ligaments, cartilage, nerves, and blood vessels. The joints are naturally aligned with elbows at the side of the body and wrists straight. The severity of risk depends on the frequency of repetition, speed of the movement or action, the number of muscle groups involved, and the required force . As muscles remain contracted, the blood flow to the muscles is reduced. As muscles remain contracted, the blood flow to the muscles is reduced.