Using a keyboard may seem like a safe activity but it often leads to arm, eye and hand strain. Ergonomics is "an applied science concerned with designing and arranging things people use so that the people and things interact most efficiently and safely." (Merriam Webster Dictionary). Ergonomics can help those who are chained to their computers avoid chronic pain and injuries.

Repetitive tasks such as sitting and typing can cause a myriad of back, neck, arm, and hand pains that can lead to serious injuries or musculoskeletal disorders, including carpal tunnel. If these conditions continue, you may need surgery to correct them. You can avoid all of this through proper posture, the right placement of the keyboard, and screen.

There is no one cause of musculoskeletal disorders. In computer related work, injuries are caused by uncomfortable placements of screens, keyboard, and the chair. According to OSHA'US Department of Labor, a keyboard set too low or too high can lead to uncomfortable posture which overtime could lead to injuries. Adjust your keyboard so it is comfortable for you, usually that's between 24 to 27 inches off the floor. Having your keyboard adjusted properly makes typing easier and less stressful on your hands and arms.

The next step would be to adjust your chair so your feet are touching the floor or on a solid surface. You should be in a natural sitting position where your head is level to the screen. Make sure that you do not sit too close to the computer monitor. Your arms and hands should be relaxed in relation to the keyboard. Your sitting position should feel natural and comfortable. Your keyboard should be at a vertical position. The monitor should be at around 28" deep.

You might have to do several adjustments in order to find what is most comfortable for you. Use chairs and tables that are adjustable.

Using the Ergonomically Correct Equipment:

* Flat screens are easier on your eyes.

* There are keyboards that claim to be ergonomic; some have split up the keyboard in order to make resting your arm easier and more comfortable. Others are slopped so your hands aren't always in the same repetitive place. It's best to try out a number of keyboards first, perhaps if you can, taking them home for a trial run before purchasing.

* Adjustable chair. The chair should also give your back support and have armrests.

* Specially made computer tables. Use a table with an adjustable monitor stand and sufficient leg space.