Awkward postures typically include reaching behind, twisting, forward or backward bending, pinching, and squatting.
Engineering controls are part of hazard prevention and control.
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.