Office computer chair ergonomics

Working in an office environment typically involves spending a great deal of time sitting at a computer or workstation. To avoid developing or compounding back and spine problems, it's important to have good office computer chair ergonomics for good posture and support of the lower back.

When looking at ergonomic office chairs there are certain features that are important to look for that allows the user to set the chair up for his or her personal needs.

Good office computer chair ergonomics should have the following features and adjustments.

The seat height should be set so as the user has his or her feet flat on the ground with thighs in a horozontal position and arms slightly higher than the keyboard.  The seat height should be easily adjustable with a pneumatic adjustment lever, allowing a seat height that ranges from about 16 to 21 inches off the floor.

 The seat should have enough width and depth to support any user comfortably. Usually 17-20 inches wide is the standard. The depth should to be enough so that the user can sit with his or her back against the backrest of the chair while leaving approximately 2 to 4 inches between the back of the knees and the seat of the chair. The forward or backward tilt of the seat should be adjustable. Also the seat should easily swivel to allow the user to manouvre to different areas without straining.
   
 The backrest of an ergonomic office chair should be 12 to 19 inches wide. If the backrest is separate from the seat, it should be adjustable in height and angle. A backrest should  support the natural curve of the spine, and have  proper support of the lumbar region. If the chair has the seat and backrest together as one piece, the backrest should be adjustable both backwards and  forward, and have a secure locking device once set in the desired position.
   
Your spine has a natural curve inwards and needs to be supported when sitting for long periods to avoid slouching and causing potential back and neck problems. The lower back or lumbar support of the chair is to promote the natural inward curve of your spine. The lumbar suport of the chair needs to be adjustable in both depth and height, again so it can be set to each individual user.

Armrests should be adjustable. They should allow the user's arms to rest comfortably and shoulders to be relaxed. The elbows and lower arms should rest lightly, and the forearm should not be on the armrest while typing.
   
Propper ergonomic workstations will help prevent and reduce back and neck injurys, improve productivity not only by reducing sick days but also improving the quality and enjoyment of the working environment.