Body Posture Using Computer

Ergonomics is the science of fitting workplace conditions and job demands to the capabilities of the working population. It focuses on designing workstations, tools and work tasks for safety, efficiency and comfort. Effective ergonomic design reduces discomfort and injuries and increases job satisfaction and productivity. The scope of ergonomics is much broader. An overall goal of ergonomics is to promote health and safety and to optimize productivity.Injuries affecting muscles, tendons, ligaments, joints, nerves and discs can be reduced or eliminated with ergonomics. These injuries are frequently called MusculoSkeletal Disorders (MSD 's), Repetitive Strain Injuries (RSI 's).There are some common ergonomic risk factors which found in jobs requiring repetitive, forceful, or prolonged exertions of the hands; frequent or heavy lifting, pushing, pulling, or carrying of heavy objects; and prolonged awkward postures. Vibration and cold may add risk to these work conditions. The level of risk depends on the intensity, frequency, and duration of the exposure to these conditions. Environmental work conditions that affect risk include intensity, frequency and duration of activities.
Posture in standing and in seated positions is important to avoid musculoskeletal disorders. The natural curve of the spine should be maintained, with the head balanced over the spine. When a person is seated: * Feet should rest on the floor, with legs and body forming 90° to 110° angles * The body should be straight, with the neck upright and supporting the head balanced on the spine (not forward or twisted to the sides) * Upper arms should be perpendicular to the floor; forearms should parallel the floor. * Position the monitor screen so that you do not have to bend your neck up or down to see the screen. * When looking at work, keep your neck in a neutral or aligned position. Position the monitor directly in front of you to avoid turning your neck to the side. * Place

References: "Occupational Safety and Health Administration." Retrieved October 18, 2005, from http://www.osha.gov/SLTC/ergonomics/index.html. 1999. http://ergonomics.ucla.edu/What_and_Why.html http://www.hpb.gov.sg/health_articles/ergonomics