الفهرس 
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Abstract
The modernization in offices has led to the introduction of information technology (IT) tools in the work atmosphere. The acceptable trend in a normal working environment is consistent with the fact that more elements are becoming computerized.
Work with computers may require individuals to assume static or awkward positions for typing; if workstations are not properly adjusted they are at high risk of occupational overuse syndrome. Studies have also shown that computer users are at greater risk of developing eye problems and visual fatigue.
Occupational overuse syndrome (OOS) is the name given to a range of conditions usually caused or aggravated by poor work processes and unsuitable working conditions. The characteristic symptoms of occupational overuse syndrome (OOS) often include swelling, numbness, restricted movement and weakness in or around muscles and tendons of the back, neck, shoulders, elbows, wrists, hands, or fingers. As such, for people experiencing symptoms of OOS, it may become difficult for them to hold objects or tools in their hands. These situations may thus affect the quality of life of the persons
Ergonomics, as a discipline involves arranging the work environment to fit the person into it. Following ergonomic principles helps reduce work stress and eliminate many potential injuries and disorders associated factors, as bad posture, and repeated tasks. Improving tasks, work spaces, posture, workstation, computing work habits, lighting and equipment help us to fit the employee’s physical, psychosocial capabilities and limitations.