In combination with performing repetitive tasks such as typing and using the mouse, tendons and muscles that support your body may not have enough time to rest and rebuild. An ergonomic desk chairs for office can significantly improve your posture; reduce your chances of developing back problems, tingling and numbness in the fingers and hands and carpal tunnel syndrome caused by repetitive movements.
With adjustable lever under the seat, lift the seat to a level in the knees and thighs bent slightly forward and back straight. Lift the back of the chair so that the bottom fits the natural curve of the lower back and lumbar region. Hips sit completely back in the seat, so their coccyx is in contact with the lower backrest. There should be 2-3 inches between the back of the calves and the chair.
Raise or lower the armrest of the ergonomic desk chairs to allow your arms to rest in comfortable 90 degree angles using the adjustable knobs at the bottom of each support arm. His forearms and wrists should be level with your keyboard. Adjust your ergonomic desk chairs until you can sit comfortably for long periods of time. Take short breaks frequently during the day.