You have to sit in an office chair that fits your body properly to prevent back pain and other problems if you work regularly at a desk for work or academic activities. As you know the doctors, chiropractors and physical therapists, many people seriously stressed ligaments in his spine and sometimes have disk problems due to sitting in office chairs unsuitable for long. However, adjust the backrest for office chair is simple and only takes a few minutes if you know how to adjust the proportions of your body.
Evaluates the angle of your elbows with respect to the job. Sit as close to the desktop and is comfortable with the upper arms parallel to the spine. Let your hands rest on the surface of the workstation or the computer keyboard, you will use most often. These should be at an angle of ninety degrees in backrest for office chair.
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Measure the distance between your calf and the front of the backrest for office chair. Raise your fist and tries to pass between the office chair and the back of your calf. There must be a space the size of your fist (about five centimeters or two inches) between your calf and the edge of the chair.