To set up your workstation to allow you to work in the best setting possible, try some of the following basics and watch how much better you feel at the end of a long work day!
Legs: the thighs should be parallel to the floor, while the lower legs should stay vertical and at 90 degrees to the floor.
Seat height: the adjustable chair should be altered so that the height is level with the back of the knee when the feet are on the floor or a footrest.
Arms: the upper arms should hang at a vertical 90 degrees to the desk, and the forearms parallel to the floor. The elbows should be close to the body.
Wrists: wrists should be straight and not anchored on anything.
Back: the back should be upright or slightly reclined and not twisted in any way.
Feet: the feet should be at 90 degrees to the lower portion of the legs.
Sight: the line of sight should be between being straight ahead and 35 degrees below the horizontal.
Remember to move at your desk
It is important to remember that you are not a machine and sitting in a rigid state to follow all the rules listed is not the perfect way to go about it. Your body is designed to move, so make sure you do.
Try stretching at your desk by leaning back on your seat and stretching your legs and arms out. To release the pressure from your shoulders and neck caused by sitting with your shoulder hunched up around your ears all day, then try a few shoulder raises.
Take regular breaks to prevent eye strain and a buildup of tension. Remember the 20 20 20 rule: every twenty minutes, look at something at least twenty feet away for at least twenty seconds.