| When working from your home office you may | | | | are accessible to the hands in a neutral posture. In |
| have a tendency not to take as many breaks as | | | | this position the arms, shoulders, neck and back |
| if you were in a traditional office. You may find | | | | can relax, especially during brief rest pauses. Also, |
| yourself working for hours before getting up | | | | in this slightly reclined sitting position the low back |
| from your chair, as the interruptions are normally | | | | rests against the lumbar support of the chair, the |
| fewer to distract you. Because of this it is critical | | | | elbow angle is opened to promote circulation to |
| that you take care of yourself - and arm yourself | | | | the lower arm and hand, the abdominal angle, and |
| with the basic ergonomics to prevent or at least | | | | the popliteal angle (behind the knees) are opened |
| minimize any physical strain due to computer | | | | to promote blood circulation. The feet rest firmly |
| work. | | | | upon the floor. |
| Here are 12 tips for setting up an ergonomic | | | | Problem postures: |
| computer workstation: | | | | Desk top keyboard - Typing at a keyboard on a |
| 1. Use a good chair with a dynamic chair back and | | | | desk is a common work posture for many |
| seat pan. Sit back and use it instead of leaning | | | | computer users. In this position it is difficult to |
| forward | | | | maintain the wrist is in a neutral posture, because |
| 2. Position the top of monitor casing 2-3" (5-8 cm) | | | | the forearms sag as they tire and this puts the |
| above eye level | | | | wrists into greater wrist extension. Also, most |
| 3. Use a no glare screen, and an optical glass | | | | users have to work with their elbows flexed, |
| anti-glare filter where needed | | | | which can compress the median and ulnar nerves |
| 4. Sit at arms length from the monitor | | | | at the elbow and restrict blood flow to the hands. |
| 5. Place your feet on floor or stable footrest | | | | Working with the forearms sloping up increase |
| 6. Use a document holder, preferably in-line with | | | | muscle loads in the upper arms, shoulders, and |
| the computer screen | | | | neck. Working in this position for more than 3-4 |
| 7. Keep wrists flat and straight in relation to | | | | hours invariably leads to muscle fatigue. |
| forearms to use keyboard/mouse/input device | | | | Conventional keyboard tray - Typing at a |
| 8. Your arms and elbows should be relaxed and | | | | keyboard on a conventional articulating keyboard |
| close to body | | | | tray can increase postural problems for users. |
| 9. Center your monitor and keyboard in front of | | | | Working with the keyboard more steeply angled |
| you so you are not turning to use them | | | | on the tray is a common work posture for many |
| 10. Use a negative tilt keyboard tray with an | | | | computer users. In this position it is also difficult to |
| upper mouse platform or downward tiltable | | | | maintain the wrist is in a neutral posture, because |
| platform adjacent to the keyboard for best wrist | | | | the forearms sag as they tire and this puts the |
| angle | | | | wrists into greater wrist extension. Studies have |
| 11. Use a stable work surface and stable (no | | | | failed to show that conventional keyboard trays |
| bounce) keyboard tray | | | | substantially improve wrist posture. |
| 12. Take frequent short breaks (microbreaks) | | | | Of course there are other ergonomic factors as |
| Ideal typing posture: Negative slope keyboard | | | | well such as proper lighting, ventilation, mouse use, |
| support | | | | furniture heights and styles, plus phone equipment |
| In the ideal typing posture both static and | | | | to name a few. Be sure to research what will be |
| dynamic muscle loads are minimized. This posture | | | | best for your specific situation and budget. Take |
| is achieved when the keyboard is below seated | | | | care of your body now and it will take care of |
| elbow height and the keyboard base is gently | | | | you in the future. |
| sloped away from the user so that the key tops | | | | |