Ergonomics human body physiology

The psychological and physiological limitations and capabilities constitute the ergonomics or human factors. It is the most important part of the occupational safety and health program. This is to evaluate personnel capabilities and improve human safety, comfort, and productivity in the workplace. Work-related musculoskeletal disorders (WMSD) are the results of ergonomics and limitations of the human body to a sudden change or continuous working on a physical job, especially where most of the jobs are carried out manually. 

Considering the physiological aspects of job design, ergonomics examines both how the human body fits into its workplace, and how it copes with its immediate environment, particularly in terms of heating, lighting, and noise characteristics. 

Physical Ergonomics Physiological, anatomical, and biomechanical characteristics of the human body related to physical activity. 

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