Tall desk chair – Fixed the height of your work station. The ideal method would be to adjust the tall desk chair. Second, rate the angle of your elbows against your work station. They must be at a 90 degree angle. Third, make sure your feet are at an appropriate level with respect to the chair. While you’re sitting with your feet flat on the floor, your thighs and the edge of the chair should be enough to shove a finger.
Between calf and the front of the chair, please measure it. It must should about the size of a fist. Fifth, adjust the backrest of tall desk chair. While you are sitting properly in the chair, with your feet flat on the ground and calves at the right distance from the edge of the chair, adjust the height of the backrest so that it fits the lower back. Adjust the angle of the backrest to fit your back. The backrest should be at an angle that supports your preferred position.
Seventh, adjust the armrests of the tall desk chair so they just touch your elbows when they form a 90 degree angle. Last, rate the direction of your gaze with eyes at rest. Your eyes should be level with the computer screen on which to work. Sit down in the chair, close your eyes. You should have the vision directed toward the center of the screen, and be able to read everything without moving your neck or eyes.